JPH0757397B2 - Feeding device for transfer press as well as feeding device for transfer press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a feed device as well as a feed drive device of a transfer press.

[Prior Art] As shown in Fig. 37 and Fig. 38, a conventional transfer press feeder has a pair of molds (not shown) arranged in the line direction and extending in the line direction on both sides. The elevating frames 1 and 2 are arranged, and the elevating frames 1 and 2 are provided with a plurality of movable bases 3 and 4 which are movable in the line direction.
3 and 4 are connected to each other while maintaining a space substantially the same as the space between the molds and connected to a feed drive device (not shown) to enable reciprocal drive in the line direction, and to the movable bases 3 and 4 in the line direction. A pair of support bases 5 and 6 that can be moved close to and away from each other are provided, and crossbars 7 and 8 are installed between the support bases 5, 5 and 6 and 6 facing each other on the lifting frames 1 and 2, respectively A vacuum cup 9 capable of adsorbing and releasing adsorption is attached.

In addition, 10 is a work formed by a transfer press.

In the transfer device of this transfer press, for example, when the work 10 is pressed at the upstream mold setting position A, the elevating frames 1 and 2 are raised and the crossbar 7 which is retracted in the intermediate position C in a close state. Movable stand while separating 8 from each other
Move 3 and 4 to the position A, lower the elevating frames 1 and 2 and lower the crossbars 7 and 8 onto the work 10 at the position A, and operate the vacuum cup 9 to move the work 10 to the crossbars 7 and 8. Adsorb to. When the work 10 is adsorbed, then the lifting frame 1,
2 is moved up and the movable bases 3 and 4 are moved to convey the work 10 to the downstream mold installation position B, and the elevating frames 1 and 2 are lowered to release the vacuum cup 9 from the suction to move the work 10 to the position B. Grate. When the work 10 is lowered, the elevating frames 1 and 2 are further raised to bring the crossbars 7 and 8 closer to each other, the movable bases 3 and 4 are moved to the intermediate position C again, and the elevating frames 1 and 2 are lowered to move the crossbars 7 and 8. After the 8 and 8 are retracted, the work 10 is pressed at the position B.

In this way, the lifting frames 1, 2 and the movable bases 3, 4 and the support bases 5, 6
The crossbars 7 and 8 are caused to perform an elevating operation and a feeding operation as well as an expanding / contracting operation by the periodic operation of, and all the works 10 are automatically sent to the downstream side and sequentially pressed a plurality of times.

The transfer device of the above transfer press includes a drive device for moving up and down the elevating frames 1 and 2 as shown in FIG. 39, a drive device for reciprocating the movable bases 3 and 4 in the line direction, and supporting bases 5 and 6.
Is provided with a feed drive device including a drive device that moves the movable bases 3 and 4 back and forth in the line direction while moving the movable bases 3 and 4 closer to and away from each other. That is, a horizontal rack 11 that horizontally moves by a drive source (not shown), a pinion 12 that meshes with the horizontal rack 11, and an elevating frame 1 that meshes with the pinion 12.
2 is equipped with a drive unit consisting of a vertical rack 13 fixed to the upper end, and the horizontal rack 11 is moved horizontally to provide a pinion.
The lifting frames 1 and 2 can be lifted and lowered through the 12 and the vertical rack 13.

In addition, a carriage 15 located at one end of the elevating frames 1 and 2 and connected to the movable bases 3 and 4 by a connecting shaft 14 and reciprocally movable in the line direction, and along a vertical slide groove 16 formed in the carriage 15. The upper end can be raised and lowered, and the middle part is the spindle
A feed lever 20 that is rotatably pivotally mounted on a 17 and has a lower end portion provided with a cam follower 18 that is swingably driven by a feed cam 19.
Is provided to convert the swing of the feed lever 20 into the movement of the carriage 15 in the line direction, and the movable table 3,
I am sending 4 so that I can work.

With respect to the drive device that performs the feeding operation, the lifting frame 1,
The downward surface 21, the inverted surface 22, the upward inclined surface 23, the upward surface 24, the upward inclined surface 25, and the inverted surface 26 fixed to
And a cam plate 27 having a closed-loop cam surface, and a lower end center portion thereof is rotatably pivoted to a horizontal shaft 28 provided on the carriage 15, and one lower end portion is rolled along the cam surfaces 21 to 26. A slidable cam follower 29 is connected to a lower end of the other end of which a restraint cylinder 30 for pressing the cam follower 29 to the cam surfaces 21 to 26 is connected, and an arc-shaped long hole provided at the upper end.
An inverted T-shaped lever 33 connected to a push-pull shaft 32, which will be described later, so that the pivot point can be moved along 31, and each movable table 3, 4
The push-pull shaft 32 is formed so as to be reciprocally movable in the line direction to transmit the driving force to the supporting table 5 and to transmit the driving force to the supporting table 6 through the rack 34 and the pinion 35 and the horizontal rack 36. A driving device is provided to push and pull the tilt of the lever 33 that moves in the line direction together with the carriage 15.
Converted to the movement of 32 in the line direction, the support bases 5 and 6 on the movable bases 3 and 4 moving in the line direction are moved toward and away from each other, that is, the cross bar 7,
8 can be scaled.

Reference numeral 37 is a cylinder for changing the pivot point of the push-pull shaft 32 with respect to the lever 33 and changing the amount of movement of the push-pull shaft 32 when the lever 33 is tilted.

[Problems to be Solved by the Invention] However, in the transfer press as well as the feed device, the elevating frame 1, which is a long and heavy object, is used.
Lifting frame 2 requires a large driving force because it is raised and lowered, and is a long and heavy lifting frame during transfer of workpiece 10.
Vibrations occur in 1 and 2 and the vacuum cup 9 to the workpiece 10
Since it is easy to drop the line, it is not possible to speed up the line to improve productivity, and the cam plate 27 for expanding and contracting the crossbars 7 and 8 has a complicated structure and
There were various technical problems such as not being able to increase the expansion and contraction dimensions of 7 and 8.

In view of the above situation, it is an object of the present invention to reduce the driving force as well as to prevent the occurrence of vibration by simplifying the elevating portion of the feeding device and simplifying the structure of the feeding drive device. It is a thing.

[Means for Solving the Problem] A first means of the present invention is to perform reciprocating motion in the longitudinal direction, ascending / descending motion, and opening / closing motion in order to convey a pair of works extending in the line direction to both sides of a mold row. A fixed guide is provided so that the guides are reciprocally movable in the line direction and a plurality of trolleys are connected to the guides at a distance substantially equal to the distance between the molds to support the work. The present invention relates to a transfer press feeding device characterized in that the device is provided so as to be able to move up and down, and each work supporting device is provided with a work gripping tool.

The second means of the present invention is to dispose a guide fixed on both sides of the mold row so as not to reciprocate in the longitudinal direction, move up and down, and open and close in order to convey a pair of works extending in the line direction. Then, a plurality of trolleys connected to the guides with a space substantially the same as the space between the molds connected to each other are provided so as to be capable of reciprocating in the line direction, and a guide plate extending in the line direction is provided to be able to move up and down in each of the trolleys. The present invention relates to a transfer press feeding device characterized in that a pair of work supporting devices are provided on the guide plate so as to be able to approach and separate in the line direction, and a work gripping tool is provided on each work supporting device.

In this case, the mechanism for moving the pair of work supporting devices close to and away from each other may be provided inside the trolley or outside the trolley.

Then, a mechanism for moving the pair of work supporting devices close to and away from each other is connected to one work supporting device and an expansion / contraction bar having a rack portion that penetrates the trolley so as to reciprocate in the line direction, and the other work supporting device. A horizontal rack that is reciprocally movable in the line direction and a pinion that drives the expansion / reduction bar and the horizontal rack in opposite directions may be used.

A third means of the present invention is to dispose a guide fixed on both sides of a mold row so as not to reciprocate, move up and down, and open and close in the longitudinal direction in order to convey a pair of works extending in the line direction. A plurality of trolleys, each of which is connected to each of the guides with a space substantially equal to the space between the molds, being connected so as to be reciprocally movable in the line direction in two rows, each trolley supporting one work. The present invention relates to a transfer press feeding device characterized in that the device is provided so as to be able to move up and down, and each work supporting device is provided with a work gripping tool.

According to a fourth aspect of the present invention, guides fixed so as not to reciprocate, move up and down, and open and close in the longitudinal direction are arranged on both sides of the mold row in order to convey a pair of works extending in the line direction. Then, a plurality of trolleys connected to the guides at substantially the same intervals as the molds are connected to each other so as to be reciprocally movable in the line direction, and one work support device is provided to each trolley so as to be able to move up and down. The present invention relates to a transfer press feeding device characterized in that a pair of work gripping tools are provided on the work supporting device so as to be able to approach and separate in the line direction.

In this case, in order to convey a pair of works extending in the line direction on both sides of the mold row, fixed guides are provided so as not to reciprocate, move up and down, and open and close in the longitudinal direction. A plurality of trolleys, which are connected to each other at substantially the same intervals as the molds and are connected to each other, are reciprocally movable in the line direction, and the work supporting devices are suspended and supported under the respective trolleys so that the work supporting devices can be lifted and lowered. A work gripping tool may be provided.

Further, the work supporting device may be a crossbar and the work gripping tool may be a vacuum cup.

Further, the work supporting device may be movable in the direction perpendicular to the line direction.

A height adjusting mechanism may be attached to the pair of guides extending in the line direction.

Further, the height adjusting mechanism may be a cylinder, a jack, or a rack and pinion.

A fifth means of the present invention is to provide a feed lever capable of swinging around a support shaft by a feed cam, and attach a lifting link to the upper end of the feed lever via a horizontal shaft so as to be rotatable, and to the support shaft. An elevating lever that can be swung by an elevating cam is provided, and the elevating lever and the elevating link are connected by an elevating rod that is parallel to the line connecting the support shaft and the horizontal axis and has the same length to form a parallelogram link. A feed lever between a horizontal axis of the upper end of the feed lever and a trolley that is reciprocally movable on a guide that is fixed so as not to reciprocate, move up and down, and open and close in the longitudinal direction to convey a work. A transfer drive device for a transfer press, characterized in that an elevating bar for transmitting a driving force to a mechanism for elevating a work supporting device with respect to a trolley is connected to the elevating lever. is there

In this case, an expansion / contraction link is rotatably attached to the horizontal shaft at the upper end of the feed lever, an expansion / contraction lever swingable by an expansion / contraction cam is provided on the support shaft, and the expansion / reduction lever and the expansion / contraction link are connected to the support shaft and the horizontal shaft. A parallelogram link is configured by connecting with expansion / contraction rods that are parallel to the connecting line and have the same length, and an expansion / contraction bar for transmitting driving force to a mechanism for moving a pair of work supporting devices close to and away from each other is connected to the expansion / contraction lever. You may.

A sixth means of the present invention is a feed connected to a trolley that is reciprocally movable along a guide fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close to convey a work. The motor is connected to the work bar via the rack and the pinion, and the motor is connected to the lifting bar for transmitting the driving force to the mechanism for moving the work support device up and down with respect to the trolley via the rack and the pinion. The present invention relates to a feed drive device of a characteristic transfer press.

In this case, the motor may be connected to the expansion / contraction bar that transmits the driving force to the mechanism for moving the pair of work supporting devices close to and away from each other via the rack and the pinion.

[Operation] Therefore, according to the present invention, the guide is fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close when the work is conveyed (however, the position can be adjusted when setting the die or the like). is there)
The work is conveyed by reciprocating the trolley in the line direction along the guide and moving the work support device up and down on the trolley.

When a pair of work support devices is provided on each trolley, a pair of trolleys is provided on each guide, and a pair of work grippers is provided on one work support device so that they can approach and separate in the line direction, A scaling operation can be added during transportation.

When the work support device is suspended and supported on the trolley, the guide can be provided at a high position, so that quick maintenance and die replacement can be performed.

When the guide is provided with a height adjusting mechanism, the height of the guide can be adjusted during pressing and the guide can be retracted during maintenance.

The reciprocating movement of the trolley in the line direction is performed by swinging the feed lever by the feed cam, and the work support device is raised and lowered by the swing movement of the raising / lowering cam and the raising / lowering lever as well as the raising / lowering link by the raising / lowering rod. It is done in sync with.

In this case, the expansion / contraction operation can be performed by swinging the expansion / contraction link by the expansion / contraction rod as well as the expansion / contraction cam and expansion lever.

Alternatively, the reciprocating movement of the trolley in the line direction and the raising and lowering of the work supporting device can be performed by the motor, and the expansion / contraction operation can be further performed by the motor.

[Examples] Examples of the present invention will be described below with reference to the drawings.

1 to 6 are explanatory views of the first embodiment of the present invention.

A pair of guides 40 and 41 extending in the line direction on both sides with respect to a row of a plurality of upper and lower molds 38 and 39 arranged side by side in the line direction do not reciprocate in the longitudinal direction, move up and down, and open and close. However, when setting other than the above, it is arranged so that the position can be adjusted, the guides 40, 41 are provided with a plurality of trolleys 42 movable in the line direction, and the mold 3 is provided between the trolleys 42.
8, 38 and 39, 39 are connected to each other by a connecting bar 43 while maintaining a space substantially the same as the space between them, and a feeding bar 44 is provided between the most upstream or most downstream trolley 42 and a feeding drive device described later.
The trolleys 42 can be simultaneously reciprocally driven in the line direction by reciprocating the feed bar 44 in the line direction.

A raising and lowering bar 45 reciprocating in a line direction by a feeding drive device described later penetrates movably into each trolley 42, and a rack 46 is provided at a position in the trolley 42 of the raising and lowering bar 45.
A pinion 47 that meshes with the rack 46 and a pinion 48 that meshes with the pinion 47 without meshing with the rack 46 are rotatably mounted in the trolley 42, and vertical racks 49 and 50 that mesh with the pinion 47 and 48, respectively. Is provided so as to project upward from the trolley 42, a guide plate 51 extending in the line direction is fixed to the upper ends of the vertical racks 49, 50, and the guide plate 51 can be moved up and down by the reciprocating movement of the lifting bar 45 in the line direction.

In addition, the expansion / reduction bar 52 that reciprocates in the line direction is movably penetrated into each trolley 42 by a feed drive device described later, and a rack 53 is provided at a position of the expansion / reduction bar 52 in the trolley 42. A pinion 54 that meshes with the trolley 42 is rotatably mounted, and a horizontal rack 55 that meshes with the pinion 54 is provided so as to be movable in the inner line of the trolley 42. Two guides 56, 57 are provided on the guide plate 51. Is provided so as to be movable in the line direction, one support base 56 is supported by the upper end of a vertical rod 58 so that it can penetrate therethrough, the lower end of the vertical rod 58 is fixed to the horizontal rack 55, and the other support base 57 is attached to the vertical rod 59. The vertical rod 59 is fixed to the expansion / reduction bar 52 by reciprocating movement of the expansion / reduction bar 52 in the line direction, and is supported by the pinion 57, horizontal rack 55, and vertical rods 58, 59. 56 and 57 can be separated from each other.

A work support device such as a crossbar 60 is installed between the opposing support bases 56, 56 and 57, 57 between the guides 40, 41, and each crossbar is
A work gripping tool such as a vacuum cup 61 capable of sucking and releasing suction is attached to 60 so as to be at a height position matching the dies 38, 39 and the work 62.

The feed drive device has the following configuration.

A cam follower 65 is attached to the lower end of an L-shaped feed lever 64 whose middle portion is swingably supported by a support shaft 63 in the line direction, and the cam follower 65 is pressed against the feed cam 67 on the cam shaft 66. The rotation of the feed cam 67 allows the feed lever 64 to swing about the support shaft 63 via the cam follower 65.
As shown in FIG. 6, one end of an elevating lever 68 and an expansion / contraction lever 69 are rotatably mounted on the shaft 63, which is the swing center of the feed lever 64, and the other ends of the levers 68, 69 are rotated. A cam follower 70 is attached to each of them, and an elevating cam 71 and an expansion / contraction cam 72, which the cam followers 70 of the levers 68 and 69 are in pressure contact with, are provided on the cam shaft 73, respectively. On the other hand, the horizontal shaft 74 is penetrated through the upper end portion of the feed lever 64, and an intermediate portion of the dogleg-shaped lifting link 75 is rotatably mounted on the horizontal shaft 74, and the dogleg shape is also provided. The intermediate portion of the expansion / contraction link 76 is rotatably attached, and is arranged between one end of the elevating link 75 and the intermediate portion of the elevating lever 68 in parallel with a line connecting the support shaft 63 of the feed lever 64 and the horizontal shaft 74. The upper and lower ends of the lifting rod 77 having the same length are connected to each other by pins to form a parallelogram link.
Expansion rod 78 between one end of 76 and the middle of expansion lever 69
The upper and lower ends of are connected by pins to form a parallelogram link,
When the feed lever 64 swings by the feed cam 67, the elevating link 75 can independently swing through the elevating cam 71, the elevating lever 68, and the elevating rod 77, and at the same time, the expansion / contraction link 76 causes the expansion / contraction cam 72, the expansion / contraction lever. 69, to be able to swing independently through the expansion / contraction rod 78.

The upper end of the feed lever 64 and the feed bar 44 are connected by a rod 79 (in this case, the feed lever 44 is not provided and the feed lever 44 is not provided).
64 may be directly connected to the most upstream or downstream trolley 42 by a rod 79), the other end of the lifting link 75 and the lifting bar 45 are connected by a rod 80, and the other end of the expansion / contraction link 76 is connected. The expansion / contraction bar 52 is connected by a rod 81.

Next, the operation will be described.

When the feed lever 64 is swung by the feed cam 67, the rod 79
Since the feeding bar 44 moves in the line direction, the trolley 42 connected by the connecting bar 43 is integrally reciprocated in the line direction.

When the feed lever 64 swings, the lifting cam 71 lifts the lifting lever 68.
When the lever 80 swings relative to the feed lever 64, the lifting link 75 swings through the lifting rod 77, and the rod 80 and the lifting bar 45 move in the line direction relative to the feeding bar 44. Therefore, the crossbar 60 is moved up and down via the guide plates 51 in parallel with the pinions 47, 48 and the vertical racks 49, 50.

Similarly, when the expansion / contraction lever 72 is swung relative to the feed lever 64 by the expansion / contraction cam 72 while the feed lever 64 is swinging, the expansion / contraction link 76 is swung via the expansion / contraction rod 78, and the rod 81 and the expansion / contraction device are used. Since the bar 52 moves in the line direction relative to the feed bar 44, the pair of cross bars 60 are expanded / contracted via the pinion 54, the horizontal rack 55, the vertical rods 58, 59, and the support bases 56, 57. It

By combining these movements, a procedure substantially similar to that shown in FIGS. 37 and 38 is performed, and the work 62 is pressed while being sequentially fed to the downstream side.

At this time, by changing the shapes of the raising / lowering cam 71 and the expansion / contraction cam 72, the stroke and timing of the elevation / expansion / contraction of the crossbar 60 can be arbitrarily changed without being influenced by the feed stroke of the trolley 42 by the feed lever 64. If it is not necessary to expand / contract the crossbar depending on the shape and type of the work 62, the expansion / contraction lever 69 is always fixed with respect to the feed lever 64 by using the expansion / contraction cam 72 having an appropriate shape. Swing to keep the angle.

The feed drive device in the first embodiment has a simple structure,
In addition, the stroke and timing of raising and lowering and expanding / contracting the crossbar 60 can be freely set, and the obtained stroke is large. Further, since each part is connected using a pin joint, there is little backlash, and a press with high dimensional accuracy is possible.

Further, in the feeding device, the trolley 42 reciprocates in the line direction on the guides 40 and 41 fixed so as not to move up and down when the work 62 is conveyed, and the guide plate 51 and the support base 5 supported by the trolley 42 are provided.
Since only the work support devices such as 6,57 and the crossbar 60 are raised and lowered, the raising and lowering part can be made smaller and lighter, and the crossbar 60 can be raised and lowered with less power. Since the part has been made smaller and lighter, vibration does not occur during operation.Therefore, the vacuum cup 60 surely adsorbs the work 62 and does not drop the work 51 due to vibration during transport, thus speeding up the line. It is possible to improve productivity.

FIG. 7 and FIG. 8 are modified examples of the first embodiment of the present invention,
The rack 53 'of the expansion / contraction bar 52 and the rack portion of the horizontal rack 55 are formed on the outside of the trolley 42, and a pinion 54' adapted to move in the line direction together with the trolley 42 is meshed with the trolley 42 to form the trolley 42. Further, the weight is reduced, and the line speed can be further increased in addition to the effect of the first embodiment.

FIG. 9 shows another modification of the first embodiment of the present invention in which the horizontal rack 55 and the expansion / contraction bar 52 are piercably supported at the lower ends of the vertical rods 58 'and 59', respectively. The same effect as the first embodiment can be obtained.

FIG. 10 is another modified example of the first embodiment of the present invention, in which the feed lever 64 and the feed bar 44 are connected to each other via the carriage 82 which is movable on the guide 40 in the line direction, and is connected to the lifting link 75. The elevating bar 45 is connected to the trolley 82 via a trolley 83 which is movable in the line direction, and the expansion / contraction link 76 and the expansion / contraction bar 52 are connected to each other via another trolley 84 which is movable in the line direction on the trolley 82. The same effects as those of the first embodiment can be obtained.

In addition, 85 is a vertical slide groove provided on the trucks 82, 83, 86
Is a slide block that slides in the slide groove 85.

FIG. 11 is still another modification of the first embodiment of the present invention,
The feed bar 44 and the elevating bar 45 are provided with racks 127, 128, 129 on the expansion / contraction bar 52, respectively, and the feed bar 44 and the elevating bar 45 are provided by motors 133, 134, 135 such as servomotors having the pinions 130, 131, 132 meshing with the racks 127, 128, 129.
In parallel, the expansion / contraction bar 52 is adapted to be reciprocally driven in the line direction, and the same effect as that of the first embodiment can be obtained.

12 to 14 are explanatory views of the second embodiment of the present invention,
In a configuration similar to that of the first embodiment, a pair of crossbars
The trolleys 42 and 42 'are separately supported by two trolleys 42 and 42' so that they can be lifted and lowered, and each trolley 42 and 42 'is connected to two sets of feed drive devices including a feed lever 64 and a lift lever 68, respectively. (The feed drive device for the trolley 42 'is omitted in FIG. 13. Further, the feed drive device shown in FIG. 5, 10 or 11 is appropriately modified to include only the feed mechanism and the elevating mechanism. Of course, the same may be applied to the following embodiments and their modifications).

In the present embodiment, the feed levers 64 of the two sets of feed drive devices are operated separately to give a feed operation and an expansion / contraction operation to the set of trolleys 42, 42 ', that is, the pair of crossbars 60.

Even in this case, as in the first embodiment, the elevating part is made smaller and lighter, the driving force can be reduced and the work can be prevented from falling, and the productivity can be improved by speeding up the line. Since the weight of the lifting portion of each trolley 42 is smaller than that in the first embodiment, the line speed can be further increased.

15 to 18 are explanatory views of a third embodiment of the present invention,
In a configuration similar to that of the first embodiment, one trolley 42
As a structure in which one crossbar 60 is supported so as to be able to move up and down, a shaft 88 that is rotationally driven by a motor 87 in the longitudinal direction of the crossbar 60 is provided, and the shaft 88 is provided with pinions 89 at predetermined intervals.
Attached, and a pair of rack bars 90, 91 extending in the line direction are meshed with the upper and lower positions of the pinion 89.
The vacuum cup 61 is attached to the tip of the rack, and the rack bars 90 and 91 are moved in opposite directions via the shaft 88 and the pinion 89 by the drive of the motor 87 such as a servo motor so that the vacuum cup 61 approaches and separates from each other. , The pair of crossbars 60 are expanded and contracted.

Even in this case, similarly to the above-described embodiment, the elevating portion can be made smaller and lighter, the driving force can be reduced and the work 62 can be prevented from falling, and the productivity can be improved by speeding up the line. Moreover, since the trolley 42 is lighter in weight, the line speed can be further increased.

FIG. 19 is a modification of the third embodiment of the present invention, in which a pair of elongated holes 92, 93 extending in the longitudinal direction are provided in the crossbar 60 at required intervals, and the elongated holes 92, 93 have pins 94, 93, respectively. 95 is movably provided, a cylinder 96 that expands and contracts in the longitudinal direction of the crossbar 60 is connected to one pin 94, and one diagonal portion of the pantograph ring 97 is pivotally attached to the pins 94 and 95, and the pantograph ring Attach the vacuum cup 61 to the other diagonal part of 97 and move the pin 94 along the long hole 92 by the expansion and contraction of the cylinder 96 to deform the pantograph ring 97 and
61 are arranged to move toward and away from each other, and the same effect as the third embodiment can be obtained.

Reference numeral 98 is a link connecting the pins 95, 99 is an extendable diagonal member connecting the vacuum cups 61, and 100 is a guide for the diagonal member 99 provided on the crossbar 60.

20 to 23 are explanatory views of the fourth embodiment of the present invention,
In a configuration similar to that of the third embodiment, the upper mold 38 when the upper mold 38 is cut off from a press device (not shown) and placed on the lower mold 39 when replacing the molds 38 and 39. Place the guide 40 'at a position approximately the same as or higher than the upper surface of the
In FIG. 20, the position is higher than the upper limit position of the upper die 38), and the crossbar 60 'is attached to the lower end of the vertical rack 49.

A sector gear 104 that connects the rod 79 at the upper end of the feed bar 64 to the gear box 101 attached to the most downstream trolley 42 and that transmits the driving force to the lifting bar 45 via the gears 102 and 103 provided in the gear box 101. The rod 80 at one end of the lifting link 75 is connected to the.

In addition, 105 is a bolster for placing the lower mold 39 and pulling it out when replacing the molds 38, 39, 106 is a roller of the trolley 42, 107
Is a cylinder for adjusting the height of the guide 40 ', and 108 is a restraint cylinder.

Even in this case, as in the third embodiment, the elevating part can be made smaller and lighter to reduce the driving force and prevent the work 62 from dropping due to vibration, and the productivity can be improved by speeding up the line.

Further, in the present embodiment, since the guide 40 'can be arranged at a high position, it is not necessary to move the guide 40' up and down when the molds 38, 39 are maintained or replaced, and the molds 38, 39 can be quickly moved. 39 can be maintained and replaced, further improving productivity.

24 and 25 are modified examples of the fourth embodiment of the present invention,
Similar to the first embodiment, the trolley 42 provided with the pair of crossbars 60 'is provided, and the same operation as the fourth embodiment is performed.
The effect is obtained.

FIGS. 26 and 27 show another modification of the fourth embodiment of the present invention, in which the support member 109 is fixed to the lower ends of the vertical racks 49 and 50, and
Open and close rack 110 that reciprocates in the line direction for each trolley 42
Pinion 111 that penetrates inside and meshes with the rack 110 for opening and closing
Is provided, the upper end of a vertically extending rotary shaft 112 rotatably supported by the trolley 42 by a bearing or the like (not shown) is fixed to the rotation center of the pinion 111, and the lower portion of the rotary shaft 112 is penetrated into the support member 109. Then, the support member 109 for the rotating shaft 112
A linear bearing 113, which is rotated by a rotary shaft 112 and is movable in the vertical direction with respect to the rotary shaft 112, is externally fitted to the inner portion, a pinion 114 is attached to the outer periphery of the linear bearing 113, and a rack that meshes with the pinion 114 is provided. A work supporting device such as a finger shaft 115 extending in the direction perpendicular to the line direction is provided on the supporting member 109 so as to be projectably housed, a work gripping tool such as the finger 116 is attached to an end of the finger shaft 115 on the mold side, and the opening / closing rack 110 is opened. The finger 116 at the tip of the finger shaft 115 can be opened and closed in the direction perpendicular to the line direction by the movement in the line direction.

An open / close lever 119 pivotally attached to the support shaft 63 and swingably driven by an open / close cam 117 and a cam follower 118 which can be rotated by a drive device (not shown), and an L-shape attached to the upper end of the feed lever 64. Opening and closing link 120 and opening and closing link 1
An opening / closing rod 121 that forms a parallelogram link by connecting one pivot point of 20 and the opening / closing lever 119 is provided, and the other pivot point of the opening / closing link 120 and a sector gear 122 provided in the gear box 101. The length is equal to rod 79 rod 123
A gear that is connected to form a second parallelogram link and that meshes with a sector gear 122 provided in the gearbox 101.
The driving force is transmitted to the opening / closing rack 110 via a gear 124 provided on the same axis as the gear 124.

Even in this case, the same operation and effect as those of the fourth embodiment can be obtained.

28 and 29 show another modification of the fourth embodiment.
In the configuration similar to that of the modification of FIGS. 27,
The opening / closing operation of 116 is performed by the opening / closing cylinder 126.

Even in this case, the same operation and effect as those of the fourth embodiment can be obtained.

30 to 32 are explanatory views of the fifth embodiment of the present invention,
In a configuration substantially similar to the first to fourth embodiments, an upright 136 (support) of the transfer press is provided with a vertically extending guide member 137, and a guide body 138 sliding along the guide member 137 is provided in a line direction. Attach the guides 40 and 41 to the pair of guides 40 and 41 for the extending trolley, and
A plurality of cylinders 1 each supported as a height adjustment mechanism between the guides 40 and 41 corresponding to the upright 136 so as to be vertically movable.
Connect 39 and 140.

Also, there are two hydraulic chambers 143, 144 on both sides of the pistons 141, 142 and
Two cylinders 147, 148 provided with 145, 146 are connected in series via a rod 149 to form a tuning cylinder 150, and one of the hydraulic chambers 143, 145 of each cylinder 147, 148 constituting the tuning cylinder 150 and each of the guides 40, 41 are formed. A plurality of cylinders 139 and 140 connected to each other are connected to the rod side by flow paths 151 and 152, respectively, and the head side of each cylinder 139 and 140 is connected to a switching valve 154 using a liquid path 153, and the switching valve 154 and the tuning cylinder One of the remaining hydraulic chambers 146 of 150 is connected to a pilot port by a liquid passage 156 having a pilot check valve 155 connected to the flow passage 153, and further, the switching valve 155 is connected to the pump 157 and the tank 158. To do.

Incidentally, the trolley, the work supporting device and the like are omitted in FIGS. 30 and 31.

In this embodiment, the same effects as those of the first to fourth embodiments can of course be obtained, but in addition, the cylinders 139, 14
By expanding and contracting 0, the height of the guides 40, 41 can be adjusted according to the height of the dies 38, 39 and the work transfer height during pressing, and when the dies 38, 39 are replaced or the transfer press During maintenance, the guides 40, 41 can be retracted to a position that does not interfere with work.

That is, the pressure fluid in the tank 157 is transferred to the switching valve 154 and the tuning cylinder 150.
Is supplied to the rod side of the cylinders 139, 140 through the cylinders 139, 140 to cause the guides 40, 41 to rise, and conversely, the pressure liquid in the tank 157 is supplied to the head side of the cylinders 139, 140 via the switching valve 154. The guides 40, 41 can be lowered by extending the cylinders 139, 140.

At this time, since the tuning cylinder 150 is provided so that the changes in the volumes of the hydraulic chambers 143 and 145 that supply the pressurized liquid to the cylinders 139 and 140 are equalized, the height of the pair of guides 40 and 41 is adjusted in synchronization. be able to.

Also, since the pilot check valve 155 is provided in the liquid path 156,
Backflow of pressure fluid from the tuning cylinder 150 is prevented and the guide 4
Can hold 0, 41 at a certain height and guide 4
At the time of lowering 0, 41, the pressure liquid in the liquid passage 153 acts on the pilot port to open the pilot check valve 155, so that the pressure liquid can be discharged from the liquid passage 156 to the tank 158.

33 and 34 are modifications of the fifth embodiment of the present invention,
Instead of using a cylinder as a height adjustment mechanism, a motor
159 and the jack 161 driven by the speed reducer 160 are used, and the same effect as the fifth embodiment can be obtained.

FIG. 35 and FIG. 36 show another modified example of the fifth embodiment of the present invention. As a height adjusting mechanism, a speed reducer 16 is used instead of the jack.
A pinion 162 connected to 0 and a vertically extending rack 163 that meshes with the pinion and has its upper end connected to the guides 40 and 41 are used, and the same effect as the fifth embodiment can be obtained. To be

It should be noted that the feed device of the transfer press of the present invention as well as the feed drive device are not limited to the above-mentioned embodiments, and the feed devices and feed drive devices of the above-mentioned respective embodiments and modifications can be combined appropriately, and the work piece Needless to say, three or more supporting devices may be provided, and various modifications may be made without departing from the scope of the present invention.

[Effects of the Invention] As described above, according to the feeding device of the transfer press and the feeding drive device of the present invention, various excellent effects as described below can be obtained.

The trolley is reciprocally moved in the line direction on a guide that is fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close when transferring the work, and only the work supporting device such as the crossbar supported by the trolley is moved up and down. Therefore, the elevating part is smaller and lighter and can be moved up and down with less power. In addition to this, the elevating part is smaller and lighter so that vibration does not occur during operation. Since the work does not drop, the line speed can be increased and productivity can be improved.

Easily expand and contract by providing a pair of work support devices on each trolley, or a pair of trolleys on each guide, or a pair of work grippers on one work support device so that they can move toward and away from each other in the line direction. Can be done.

By suspending and supporting the work supporting device on the trolley, the guide can be provided at a high position, and quick maintenance and die replacement can be performed.

By mounting a work support device such as a finger shaft that can move up and down equipped with a work gripping tool such as a finger so that it can move in the direction perpendicular to the line direction with respect to the trolley that can move in the line direction along the guide, Compared to a case where a finger is directly attached to a conventional feed bar (corresponding to the lifting frame described in the conventional example of the present application which can be further opened and closed) adapted to be opened and closed in parallel with the operation. , The driving device can be greatly reduced in size and weight and the vibration can be reduced, so that the work can be conveyed at high speed.

By providing the guide with a height adjusting mechanism, the height of the guide can be adjusted during pressing and the guide can be retracted during maintenance.

A feed lever that swings with a feed cam, and a lift link that swings with a lift rod as well as a lift cam and a lift lever are provided. To the trolley via a feed bar, and an elevating bar for transmitting and receiving a driving force to a mechanism for elevating and lowering the work supporting device with respect to the trolley to the elevating lever, or a pair of work supporting devices to the separating / retracting lever. The structure can be simplified by connecting the expansion / contraction bar that transmits the driving force to the mechanism, and the stroke and timing of the crossbar up / down and expansion / contraction can be set freely to obtain a large stroke. Further, since each part is connected using a pin joint, there is little backlash, and a press with high dimensional accuracy is possible.

The structure can be simplified by directly reciprocating the feed bar, lifting bar, and expansion / contraction bar using the motor, rack, and pinion to perform the feeding operation, the elevating operation, or the expansion / contraction operation. In addition, it is possible to freely set the strokes and timings for raising and lowering and expansion / contraction, obtain a large stroke, and perform a press with high dimensional accuracy.

[Brief description of drawings]

FIG. 1 is a plan view of the feeding device according to the first embodiment of the present invention, and FIG.
1 is a side view of FIG. 1, FIG. 3 is an enlarged view of the trolley of FIG. 1, FIG. 4 is a front view of FIG. 3, and FIG. 5 is a side view of a feed drive device used in FIG. 6 is an exploded perspective view of FIG. 5,
FIG. 7 is a side view of a modification of the first embodiment of the present invention, FIG. 8 is a front view of FIG. 7, and FIG. 9 is a side view of another modification of the first embodiment of the present invention. FIG. 10 is a side view of another modification of the first embodiment of the present invention, FIG. 11 is a schematic side view of yet another modification of the present invention, and FIG. 12 is a feeder of the second embodiment of the present invention. FIG. 13, FIG. 13 is a side view of FIG. 12, FIG. 14 is a side view of a feed drive device used in FIG. 12, and FIG. 15 is a plan view of a feed device of a third embodiment of the present invention. 16 is a side view of FIG. 15, FIG. 17 is an enlarged view of the trolley of FIG. 15, FIG. 18 is an enlarged perspective view of the crossbar of FIG. 17, and FIG. 19 is a third embodiment of the present invention. A plan view of a modified example, FIG. 20 is a side view of a fourth embodiment of the present invention, and FIG.
Fig. 20 is an enlarged view of the trolley of Fig. 20, Fig. 22 is a front view of Fig. 21, Fig. 23 is an explanatory diagram of a feed drive device used in Fig. 20,
24 is a side view of a modification of the fourth embodiment of the present invention, FIG. 25 is a front view of FIG. 24, FIG. 26 is a side view of another modification of the fourth embodiment of the present invention, and FIG. The figure shows the front view of the trolley of Fig. 26,
FIG. 28 is a side view of another modification of the fourth embodiment of the present invention,
28 is a front view of the trolley of FIG. 28, FIG. 30 is a side view of the fifth embodiment of the present invention with a part omitted, FIG. 31 is a plan view of FIG. 30, and FIG. 32 is used for FIG. Hydraulic circuit diagram, FIG. 33 is a plan view of a modification of the fifth embodiment of the present invention, FIG. 34 is a side view of FIG. 33, and FIG. 35 is a modification of the fifth embodiment of the present invention. FIG. 36 is a plan view, FIG. 36 is a side view of FIG. 35, FIG. 37 is a perspective view of a conventional transfer press feeder, FIG. 38 is an operation explanatory view of FIG. 37, and FIG. 39 is a feeder of FIG. It is a side view of a drive device. In the figure, 38 and 39 are molds, 40, 40 'and 41 are fixed guides, 42 and 42' are trolleys, 44 is a feeding bar, 45 is a lifting bar, 51 is a guide plate, 52 is a scaling bar, 53, 53 'is a rack, 54,54'
Is a pinion, 55 is a horizontal rack, 60 and 60 'are crossbars, 6
1 is a vacuum cup, 62 is a work, 63 is a spindle, 64 is a feed lever, 67 is a feed cam, 68 is an elevating lever, 69 is an expansion / contraction lever, 71 is an elevating cam, 72 is an expansion / contraction cam, 74 is a horizontal axis, 75 Is a lifting link, 76 is a scaling link, 77 is a lifting rod, 78 is a scaling rod, 115 is a finger shaft, 116 is a finger, 133,134,13
5 is a motor, 139 and 140 are cylinders, 161 is a jack, 162 is a pinion, and 163 is a rack.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (31) Priority claim number Actual application 62-177370 (32) Priority date Sho 62 (1987) November 20 (33) Priority claim country Japan (JP) (31) Priority Claim number Actual application 62-177372 (32) Priority date Sho 62 (1987) November 20 (33) Country of priority claim Japan (JP) (31) Priority claim number Actual application 62-177373 (32) Priority Japan Sho 62 (1987) November 20 (33) Priority claiming country Japan (JP) (31) Priority claim number Sho 62-198888 (32) Priority date Sho 62 (1987) December 29 (33) ) Japan (JP) (72) Inventor Shinji Ishida No. 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawajima Harima Heavy Industries Co., Ltd. Yokohama No. 2 factory (72) Kenji Nakamura Isogo, Yokohama-shi, Kanagawa Shin-Nakahara-cho 1-Ku Ishi Kawashima Harima Heavy Industries Co., Ltd. Yokohama Second Factory (72) Inventor Katsuyuki Onogami No. 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Ishi Ishikawajima Harima Heavy Industries Co., Ltd.Yokohama second factory (72) Inventor Mitsuo Sudo No. 1, Shin-Nakahara-cho, Isogo-ku, Yokohama, Kanagawa Ishi Ishikawajima Harima Heavy Industries Co., Ltd. (72) Inventor Yoshio Takahashi No. 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishi Kawashima Harima Heavy Industries, Ltd. Yokohama Second Factory (56) References JP 61-1427 (JP, A) JP 60 -6227 (JP, A) Actually opened 60-181228 (JP, U) Actually opened 62-118638 (JP, U)

Claims (18)

[Claims] 1. A guide, which is fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close, is provided on both sides of a mold row in order to convey a pair of works extending in the line direction. The guide is provided with a trolley that is reciprocally movable in the line direction, with a plurality of trolleys being held at a distance that is substantially the same as the distance between the molds.
A feed device for a transfer press, wherein a work support device is provided to be movable up and down on each trolley, and a work gripping tool is provided on each work support device. 2. A guide, which is fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close, is provided on both sides of the mold row to convey a pair of works extending in the line direction. The guide is provided with a trolley that is reciprocally movable in the line direction, with a plurality of trolleys being held at a distance that is substantially the same as the distance between the molds.
A guide plate extending in the line direction is provided on each trolley so as to be able to move up and down, a pair of work supporting devices is provided on the guide plate so as to be able to approach and separate in the line direction, and a work gripping tool is provided on each work supporting device. Transfer press feeding device. 3. A transfer press feeding device according to claim 2, wherein a mechanism for moving the pair of work supporting devices close to and away from each other is provided inside the trolley. 4. The transfer press feeding device according to claim 2, wherein a mechanism for moving the pair of work supporting devices toward and away from each other is provided outside the trolley. 5. An expansion / contraction bar having a rack portion which has a mechanism for moving a pair of work supporting devices close to and away from each other and which is connected to one work supporting device so as to reciprocate through a trolley in a line direction, and the other work supporting device. 4. A horizontal rack connected to and reciprocating in the line direction, and a pinion for driving the expansion / contraction bar and the horizontal rack in opposite directions.
Alternatively, the transfer press feeding device according to item 4. 6. A guide, which is fixed so as not to reciprocate, move up and down, and open and close in the longitudinal direction, is provided on both sides of the mold row in order to convey a pair of works extending in the line direction. The guide is provided with two trolleys, each of which has a plurality of trolleys connected to each other with a space substantially the same as the space between the dies, reciprocally movable independently in two lines, and one work support device can be moved up and down for each trolley. And a work gripping tool provided on each work supporting device. 7. A guide, which is fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close, is arranged on both sides of the mold row to convey a pair of works extending in the line direction. The guide is provided with a trolley that is reciprocally movable in the line direction, with a plurality of trolleys being held at a distance that is substantially the same as the distance between the molds.
A transfer press feeding device, wherein one work supporting device is provided for each trolley so as to be capable of moving up and down, and a pair of work gripping tools is provided for the work supporting device so as to be able to approach and separate in the line direction. 8. A guide which is fixed so as not to reciprocate in the longitudinal direction, move up and down, and open and close in order to convey a pair of works extending in the line direction is arranged on both sides of the mold row. The guide is provided with a plurality of trolleys connected to each other at substantially the same intervals as the molds so that the trolleys can reciprocate in the line direction, and the work supporting devices are suspended and supported below the respective trolleys so as to be vertically movable. The work gripping tool is provided on the workpiece.
The feeding device of the transfer press according to any one of items 1 to 7. 9. The transfer press feeding device according to claim 2, wherein the work supporting device is a crossbar, and the work gripping tool is a vacuum cup. 10. The transfer press feeding device according to claim 2, wherein the work supporting device is movable in a direction perpendicular to the line direction. 11. The transfer press feeding device according to claim 1, wherein a height adjusting mechanism is attached to a pair of guides extending in the line direction. 12. The height adjusting mechanism is a cylinder.
Transfer device for the transfer press described. 13. The height adjusting mechanism is a jack.
Transfer device for the transfer press described. 14. The transfer press feeding device according to claim 11, wherein the height adjusting mechanism is a rack and pinion. 15. A feed lever is provided which is swingable about a support shaft by a feed cam, and an elevating link is rotatably attached to an upper end of the feed lever via a horizontal shaft, and is rocked by the elevating cam on the support shaft. An elevating lever that is movable is provided, and the elevating lever and the elevating link are connected by an elevating rod that is parallel to the line connecting the support shaft and the horizontal axis and has the same length to form a parallelogram link. The horizontal axis of the and the trolley that can reciprocate on a guide that is fixed so as not to reciprocate, ascend and descend, and open and close in the longitudinal direction for transporting the work is connected via a feed bar. At the same time, an elevating bar is connected to the elevating lever for transmitting a driving force to a mechanism for elevating the work supporting device with respect to the trolley. 16. An expansion / contraction link is rotatably attached to a horizontal shaft at an upper end of a feed lever, and an expansion / contraction lever swingable by an expansion / contraction cam is provided on a support shaft. The expansion / reduction lever and the expansion / reduction link are connected to the support shaft and the horizontal shaft. A parallelogram link is formed by connecting with expansion / contraction rods that are parallel and parallel to the line connecting the lines, and the expansion / contraction bar that transmits the driving force to the expansion / contraction lever is a mechanism for moving the pair of work supporting devices close to and away from each other. The transfer drive device of the transfer press according to claim 15, which is connected. 17. A feed bar connected to a trolley reciprocally movable along a guide fixed so as not to reciprocate, ascend and descend, and open and close in the longitudinal direction for transporting a work, and a rack. And connect the motor via a pinion,
A transfer drive feed drive device characterized in that a motor is connected via a rack and a pinion to an elevating bar for transmitting a driving force to a mechanism for elevating the work supporting device with respect to the trolley. 18. The feed drive device for a transfer press according to claim 17, wherein a motor is connected to the expansion / reduction bar for transmitting the driving force to the mechanism for moving the pair of work supporting devices close to and away from each other via a rack and a pinion.