JPH0618677B2 - Blank material transfer method between blanking line and press line - Google Patents

Description

Detailed Description of the Invention A. Object of the invention (1) Industrial field of application The present invention is a blanking line for sequentially blanking the thin plate strip material that is continuously supplied and continuously sending blank material, and the blank material continuously. The present invention relates to a method of conveying a blank material between a press line for press working.

(2) Conventional technology Conventionally, for example, in the process of manufacturing each part of an automobile body, the blank material that comes out after blanking on the blanking line cannot be put into the press line as it is. In addition, the blank material feeding speed from the blanking line is faster than the press working speed on the press line. For this reason, the blank materials sent from the blanking line are stacked and stored on the pallet, and then they are manually transferred to the press line and loaded into the pallet, or the pallet is swiveled and inverted, and the posture of the blank material is changed. After being converted, it is manually transferred to the press line.

(3) Problems to be Solved by the Invention However, in the above-mentioned conventional ones, not only a large number of pallets are required, but also a retaining space for them is required, and moreover, manpower is required and it is inefficient.

The present invention has been made in view of the above circumstances, and provides a blank material conveying method between a blanking line and a press line, which eliminates the need for a pallet and its retention space, and further improves the transportation efficiency. With the goal.

B. Configuration of the Invention (1) Means for Solving Problems According to the present invention, a side that enables stacking and holding of a plurality of blank materials and feeding of the blank materials in the same direction as the blanking line. Placing a pillar on the side of the blanking line, holding a stack of a plurality of blanks sent from the blanking line or the side pillars, reversing those blanks around the horizontal axis, and A reversing and swiveling device capable of swiveling around a vertical axis is provided at a first position corresponding to the rear end of the blanking line and capable of receiving blank material from the blanking line, and at a side pillar corresponding to the side pillar. It is arranged so that it can move between the second position where blank material can be received from the When the blanks have the same attitude, a plurality of blanks are stacked by the reversing and swiveling device, the attitude is changed as necessary, and the blanks are supplied to the press line in a stacked state. When there are two types of postures of the blank material along the feeding direction, one type of blank material is inverted and laminated on the turning device as it is, and the other type of blank material is once laminated on the side pillar and then inverted and turned on the turning device. It is characterized in that the blanks are fed, both are inverted as required, and the posture is changed by a turning device to feed a plurality of blanks to the press line in a stacked state.

(2) Action When the blank material blanked on the blanking line has the same posture along the feeding direction, multiple blank materials from the blanking line are reversed to the first position and stacked on the turning device. It is possible to hold them, arrange them with the same device as necessary, and then collectively supply them to the press line in the laminated state. Further, when there are two types of postures along the feeding direction of the blank material, only one type of blank material is reversed at the first position and directly fed to the turning device to be stacked and held there, while the other type. The blank material of the above is once sent to the side pillar, stacked and held there, and they are collectively moved to the second position, the reversing device, the revolving device, and any kind of blank material is reversed. The orientation can be adjusted by the turning device as required, and the laminated state can be collected and supplied to the press line.

(3) Example Hereinafter, an example of the present invention will be described with reference to the drawings. First, in FIG. 1, the blanking line 1 and the press line 2 are arranged substantially orthogonal to each other in an L shape, A reversing / turning device 3 is arranged between the blanking line 1 and the press line 2.

Referring also to FIG. 2, the blanking line 1 is composed of a blanking press device 4 and conveyors 5 and 6 arranged in front of and behind the blanking press device 4. A feeder 8 for continuously supplying a thin steel plate 7 as a thin strip material wound as a coil 9 is connected. The conveyor 6 on the rear side is attached to the blanking press device 4, and the reversing / turning device 3 is provided so as to be connectable to the conveyor 6. A side pillar 10 is arranged on one side of the blanking press device 4, and an extruding device 56 is arranged on the other side of the blanking press device 4 on the opposite side. It This extrusion device 56
Is for selectively extruding the blank material 11 blanked by the blanking press device 4 to the side pillar 10 side. The extruded blank material 11 is, for example, the blanking press device 4 and the side pillar 10.
It is sent onto the side pillar 10 via the chute 12 in between.

The side pillar 10 is a blank material 11 that has been extruded.
Has a function of stacking a plurality of sheets of the blank material 11 and also has a function of sending out the plurality of stacked blank materials 11 in a direction parallel to the sending direction 13 of the blank material 11 in the blanking line 1.

Referring also to FIG. 3, the press line 2 includes a stacker 14 that stores a fixed amount of blank material 11 and a conveyor 15.
A pickup device 16, a washing machine 17, a loader 19 at the front end, and a destacker 20 at the rear end.
A press device 18 having processing stations S1 to S5 on the way is arranged in a straight line.

The plurality of blank materials 11 stored in the stacker 14 are supplied to the pickup device 16 by the conveyor 15,
The blank materials 11 picked up one by one by the pickup device 16 are washed by the washing machine 17, and then the loader 19
Is fed into the press device 18. This press machine 1
The blank material 8 is provided in a carrying device (not shown).
Reference numeral 1 denotes the first to fifth processing stations S1 to S4, which are sequentially pressed.

In FIG. 4 and FIG. 5, the reversing / swivel device 3 includes a base 21, a support frame 22 supported by the base 21, a swivel table 23 disposed below the support frame 22, and a support. A first belt conveyor 24 provided on the upper part of the frame 22, a second belt conveyor 25 provided on the revolving table 23 so as to face the first belt conveyor 24, and an electromagnetic wave provided on the back of the first belt conveyor 24. Magnet 26 (6th
(See FIG. 7, FIG. 7), a reversing drive means 27 for reversing driving the support frame 22, and a rotation motor 28 as a revolving driving means for revolving the revolving table 23.

The base 21 is formed to be long in the direction orthogonal to the feeding direction 13, and columns 29 are erected at both ends in the longitudinal direction. The support frame 22 includes a bottom plate 30 and the bottom plate 3
Side plates 31, 31 fixed to both ends of 0 and both side plates 31,
31 and an upper plate 32 connecting the upper ends of the side plates 31,
Shafts 33, 33 projecting from 31 are rotatably supported by both columns 29, 29 of the base 21 having a horizontal axis line that is orthogonal to the feeding direction 13. Therefore,
The support frame 22 is supported by the base 21 so as to be angularly displaceable between a normal position in which the belt conveyor 25 is downward as shown in FIG. 2 and an inverted position in which the second belt conveyor 25 is upward.

In FIGS. 6 and 7, the first belt conveyor 24
Is fixedly provided on the upper portion of the support frame 22, that is, on the upper plate 32, so that it can be transported in the direction along the delivery direction 13. The first belt conveyor 24 has a plurality of drive pulleys 35 on one end side and a plurality of driven pulleys on the other end side along the feeding direction 13 between a pair of supporting side plates 34, 34 fixedly mounted on the upper plate 32. (Not shown) is pivotally supported, and each drive pulley 3
A plurality of, for example, four endless belts 36 are suspended around 5 and the driven pulley. Moreover, a plurality of rollers 37, which are in sliding contact with the upper surface of the lower running portion 36a of each endless belt 36, are pivotally supported by the supporting side plates 34, 34.

Referring also to FIG. 8, the turning table 23 is formed in a disk shape, and a support shaft 38 is provided at the center of the lower surface of the turning table 23 so as to project downward. Further, on the lower surface of the turning table 23, an annular locking groove 39 is provided along a virtual circle centered on the support shaft 38, and the locking groove 39 is formed so that its cross section has a substantially "T" shape. To be done.

On the other hand, a rotary motor 28 is supported and fixed to the center of the bottom plate 30 of the support frame 22, and an output shaft 40 of the rotary motor 28 has a vertical axis and projects above the base 21. Moreover, the output shaft 40 is formed in a cylindrical shape,
The support shaft 38 of the turning table 23 is fitted into the output shaft 40. The output shaft 40 has a long hole 41 extending in the vertical direction.
Is provided, and a pin 42 protruding from the support shaft 38 is fitted into the elongated hole 41. Therefore, the output shaft 40 and the support shaft 38 are allowed a slight relative movement along the axial direction, but the relative angular displacement around the axis is prevented, and the turning table 23 turns according to the operation of the rotary motor 28. To do.

Further, a plurality of, for example, four fixing cylinders 43 are provided on the bottom plate 30 of the support frame 22 at a portion corresponding to the locking groove 39.
It is supported and fixed with the axis vertical. The piston rod 44 of each of the fixing cylinders 43 extends upward, and a substantially "T" -shaped locking claw 45 that is inserted into the locking groove 39 is fixedly provided at the tip thereof. When the fixing cylinder 43 is contracted, the locking claw 45 engages with the locking groove 39, whereby the turning table 23 is prevented from its angular displacement, and the locking claw 45 is extended in response to the expansion operation of the fixing cylinder 43. When the engagement between the locking groove 39 and the locking groove 39 is released, the turning motion of the turning table 23 is allowed.

The second belt conveyor 25 is basically constructed in the same manner as the first belt conveyor 24, and in order to be able to stack a plurality of blank materials 11 between the first belt conveyor 24 and the first belt conveyor 24, It is fixedly arranged on the turntable 23 so as to face the one-belt conveyor 24.

The reversal drive means 27 is fixed to the shaft 33 on one side in the longitudinal direction of the support frame 22 and has a disk 46 having a driven gear 46 on the outer peripheral surface thereof, and a drive motor 48 disposed on the base 21.
And the drive motor 4 while engaging with the driven gear 46.
8 and a drive gear 49 which is rotationally driven.

Due to the function of the rotation driving means 27, the support frame 22 is in the normal position in which the first belt conveyor 24 is in the upper position and the second belt conveyor 25 is in the lower position, and the support frame 22 is in the upper position and the first belt conveyor 25 is in the upper position. Angular displacement is driven between the inversion position with 24 down.

The shaft 33 on the other side in the longitudinal direction of the support frame 22 has a gear 50 on its outer peripheral surface in order to maintain the balance with the disk 47.
A disk 51 having a
The idle gear 52 pivotally supported by the support column 29 is meshed with the support.

Referring again to FIGS. 6 and 7, between the rollers 37 of the first belt conveyor 24, the electromagnetic magnet 26 is arranged close to the upper surface of the lower traveling portion 36a of the belt 36. That is, the electromagnetic magnets 26 are fixedly arranged in the direction along the feeding direction 13 by the plurality of support rods 53 whose both ends are supported by the support side plates 34, 34.

Such a reversing / turning device 3 is capable of reciprocating between a position corresponding to the rear end of the blanking line 1 and a position corresponding to the side pillar 10. That is, the guide rail 54 is laid between the position corresponding to the rear end of the blanking line 1 and the position corresponding to the side pillar 10, and the base 21 of the reversing and turning device 3 is provided.
Wheels 55 for traveling on the guide rail 54.
Is pivotally supported. As a result, the reversing / turning device 3 can travel back and forth on the guide rail 54, and is driven by a driving means (not shown).

Next, the operation of this embodiment will be described. First, assuming the case where both side panel outers of an automobile body are processed, the blank material 11a for forming both side panel outers is as shown in FIG. In the blanking line 1, the strip steel sheets 7 are successively formed by blanking. At this time, in order to process both left and right side panel outers in the press line 2, the left and right blank materials 11a are turned upside down as shown in FIGS. 10 (a) and (b). It is necessary to supply it to the press line 2 in this posture.

Therefore, the blank material 11a for forming the side panel outer on the one side, for example, the right side, is fed from the blanking line 1 to the swivel device 3 as it is, and a plurality of sheets are stacked by the inversion and swivel device 3 and are pressed. It is transported to line 2. The blank material 11a for forming the left side panel outer is the blanking line 1
A plurality of side pillars 10 are extracted from the side pillar 10, and the reversing and turning device 3 is moved to the side pillar 10 side, then transferred to the reversing and turning device 3 and reversed, and the reversing and turning device 3 is further moved to the blanking line 1 After moving to the side, it is supplied to the press line 2.

In this way, the direct supply of the blank material 11a to the reversing / turning device 3 and the supply to the side pillar 10 may be alternately performed for each blank material 11a, or a fixed number of reversing / turning operations may be performed. After the end of the supply to the device 3, a fixed number of sheets may be supplied to the side pillar 10.

Here, the operation of the reversing / turning device 3 will be described in detail. With the support frame 22 in the normal position, the electromagnetic magnet 26 is energized, and when one blank material 11a is supplied, the The blank material 11a is adsorbed to the upper first belt conveyor 24 side. Therefore, when the first belt conveyer 24 is operated, the blank material 11a is conveyed by the first belt conveyer 24. Therefore, after the conveyance to a certain position, the energization of the electromagnetic magnet 26 is cut off. Then, the blank material 11 a drops on the second belt conveyor 25 due to the release of the attraction force by the electromagnetic magnet 26. By repeating such an operation, a plurality of blank materials 11 a are stacked between the first belt conveyor 24 and the second belt conveyor 25.

Therefore, when the conveyance to the press line 2 in the same posture is required, the operation of the second belt conveyor 25 is started, and a plurality of blank materials 11a are supplied to the press line 2 in a stacked state. When it should be reversed, the supporting frame 22 is angularly displaced to the reversing position by the reversing driving means 27, and the plurality of blank materials 11a are supplied to the press line 2 by the first belt conveyor 24 located below.

Next, as shown in FIG. 11, when the front fender of the automobile body is formed, the blank material 11b and the blank material 11c are alternately formed in parallel by blanking the thin steel plate 7. In this case, one blank 1
1b is supplied to the press line 2 through the reversing and swiveling device 3 for every plural sheets, and the other blank material 11c is supplied to the reversing and swiveling device 3 through the side pillar 10 and the swivel table 23 is rotated by 180 degrees. By the angular displacement, a plurality of blank materials 11c having the same posture as the blank material 11b is supplied to the press line 2.

Further, as shown in FIG. 12, when the bonnet of the automobile body is formed, it is necessary to supply the blank material 11d produced by the blanking of the thin steel plate 7 to the press line 2 in a posture in which it is angularly displaced by 90 degrees. There is. In this case, the blank material 11d is received in a state where the lower second belt conveyor 25 in the reversing and turning device 3 is angularly displaced by 90 degrees in advance, and then the second belt conveyor 25 is angled in the opposite direction by 90 degrees. It may be displaced, returned to the original state, and supplied to the press line 2.

C. As described above, according to the present invention, when the blank material blank-processed on the blanking line has the same posture along the feeding direction, a plurality of blank materials from the blanking line are It is possible to invert the position of No. 1 and stack and hold them on a turning device, adjust their postures as needed by the same device, and then collectively supply them to the press line in the stacked state. Further, when there are two types of postures along the feeding direction of the blank material, only one type of blank material is reversed at the first position and directly fed to the turning device to be stacked and held there, while the other type. The blank material of
Send them to the side pillars, stack and hold them there, and then put them all together, turn them over to the second position, turn them over, send them to the turning device, and turn any type of blank material,
It is possible to adjust the posture with a turning device as necessary, and then collectively supply them to the press line in a laminated state. As a result, it is convenient to automate the work of transferring the blank material from the blanking line to the press line and the posture changing work, and the pallet, which was indispensable for the conventional manual work of transferring the blank material, is unnecessary. At the same time, it is not necessary to specially secure the pallet retention place.

In addition, since the above-mentioned side pillar is specially provided on the side of the blanking line and the reversing device and the turning device can be moved to correspond to this side pillar, there are two types of postures along the feeding direction of the blank material. Even if it is necessary to invert or swivel, blank materials that need to be flipped or swiveled are stacked in a side piler without being fed directly to the swivel device and stacked and stored. Since it is possible to easily handle batch supply to the line, it can greatly contribute to the improvement of work efficiency as a whole.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is an overall layout view, FIG. 2 is a side view of a blanking line and reversing device, a turning device, and FIG. 3 is a partial side view of a press line.
FIG. 4 is a view taken along the line IV-IV in FIG. 2, and FIG. 5 is a line V- in FIG.
V line view, FIG. 6 is a partially enlarged vertical side view of the first belt conveyor, FIG. 7 is a sectional view taken along line VII-VII of FIG. 6, and FIG. 8 is an enlarged cutaway sectional view of a VIII portion of FIG. FIG. 9 is a plan view showing an example of a blanking state of a thin steel sheet, FIG. 10 is a view showing a posture change state of the blank material of FIG. 9, and FIGS. 11 and 12 are blanking of the thin steel sheet. It is a top view showing each of other examples of a processing state. 1 ... Blanking line, 2 ... Press line, 3 ...
… Reversing and swiveling devices, 7 ... Thin steel plates as thin strips, 1
0 ... Side pillars, 11, 11a, 11b, 11
c, 11d …… Blank material, 13 …… Sending direction

Continuation of the front page (56) References Japanese Patent Laid-Open No. 58-20332 (JP, A) Actually published 56-45536 (JP, U)

Claims (1)

[Claims] 1. A blank material (11, 11a, 11) obtained by sequentially blanking a thin strip material (7) continuously supplied.
b, 11c, 11d) and a blanking line (1) for continuously feeding the blank material and a press line (2) for continuously pressing the blank material. A side pillar (10) capable of holding and stacking materials and sending blanks in the same direction as the blanking line (1).
Are arranged on the side of the blanking line (1), and a plurality of blanks sent from the blanking line (1) or the side pillar (10) are held in a stacked state, and the horizontal axis of the blanks is kept. Inversion,
A reversing and revolving device (3) capable of revolving around the vertical axis of each blank material corresponds to the rear end of the blanking line (1) and can receive the blank material from the blanking line (1). First position and side pillar (1
0), which is movably arranged between a second position where the blank material can be received from the side pillar (10), and the feeding direction (1) from the blanking line (1).
When the blanks along 3) have the same attitude, the reversing and swiveling device (3) stacks a plurality of blanks, and the attitude is changed if necessary, and the press line (2) is stacked. When there are two types of postures of the blank material along the feeding direction (13) from the blanking line (1), one of the blank materials is inverted and laminated as it is on the turning device (3), After stacking the other type of blank material once on the side pillar (10), it is turned over and fed to the turning device (3), both are turned over as necessary, the posture is changed by the turning device (3), and a plurality of blanks are obtained. A blank material conveying method between a blanking line and a press line, characterized in that the materials are supplied to the press line (2) in a laminated state.