JPH0252128A - Method and apparatus for feeding transfer press and feed drive - Google Patents

Abstract

PURPOSE:To miniaturize and weight-save the lifting part of a feeder, to reduce the driving force and to prevent vibration from generating by carrying a work with a trolley and a work supporting device which can move vertically to the trolley. CONSTITUTION:When a feed layer 64 is oscillated by a feed cam 67, the trolley 42 connected by a connecting lever is moved in the direction of a line. When a lifting lever 68 is oscillated by a lifting cam 71 relatively to the feed lever 64 while the feed lever 64 is oscillated, a lifting link 75 is oscillated through a lifting rod 77 and a cross bars 60 are moved vertically. Similarly, while the feed lever 64 is oscillated, a pair of cross bars 60 is expanded or contracted by an expansion and contraction cam 72. Such movements are combined to send the work in sequence to the downstream and to press it. The trolley 42 reciprocates on a fixed guide 40 of the feed device and the work supporting devices only such as a guide plate 51, support bases 56, 57 and the cross bars 60, etc., supported by the trolley 42 move vertically. Consequently, the device can be miniaturized and weight-saved and move the cross bars 60 vertically with small power.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a transfer press feeding method and device, as well as a feeding drive device.

[Prior Art] As shown in FIGS. 37 and 38, a conventional transfer press feeding device has a pair of molds extending in the line direction on both sides of a plurality of rows of molds (not shown) arranged in parallel in the line direction. A lifting frame 1゜2 is arranged, and the lifting frame 1.
．． 2 is provided with a plurality of movable tables 3.4 that are movable in the line direction, and each of the rotary tables 3.4 is connected to each other while maintaining substantially the same spacing as the spacing between the molds, and is driven by a feed drive (not shown). f on the device
rc, a pair of support stands 5, which are capable of reciprocating in the line direction and are movable toward and away from each movable stand 3.4 in the line direction;
6 are provided, and opposite supports 5.21 of the lifting frame 1.21 are provided.
A cross spar 7.8 is installed between 5 and 6.6, and a vacuum cup 9 that can be sucked and released from suction is attached to each cross spar 7.8.

Note that 10 is a workpiece that is molded using a transfer press.

For example, in the feeding device of this transfer press,
When the 7-ku 10 is pressed at the straight mold installation position A, the elevating frames 1 and 2 are then raised by J, and the cross pars 7 and 8, which had been retracted close to the intermediate position C, are separated from each other. While moving the movable base 3.4 to position A, lift the lifting frame 1.
．． 2 and lowers the cross par 7.8 onto the work 10-L at position A, and operates the vacuum cup 9 to adsorb the work 1° to the cross par 7.8. After picking up the workpiece 1o, the lifting frame 1.2 is raised and the movable table 3.
4 to transport the work 10 to the downstream mold installation position B, lower the elevating frames 1 and 2, release the suction from the vacuum cup 9, and lower the work 1o to the position B. After lowering the workpiece 1o, the lifting frame 1.2 is further raised to bring the cross par 7.8 close to it, and the movable table 3.4 is again moved to the intermediate position C, and the lifting frame 1.2 is lowered to bring the cross par 7.8 closer. After retracting, the workpiece IO is pressed at position B.

In this way, by the periodic operation of the lifting frames 1 and 2, the movable tables 3 and 4, and the support table 5.6, the cross spar 7.8 is caused to perform lifting and lowering operations, feeding operations, and expansion and contraction operations, and all the workpieces 10 are automatically moved. Press the belly several times in order while sending it downstream.

The feeding device of the transfer press described above includes a drive device for lifting and lowering the lifting frame 1.2 as shown in FIG.
A drive device that reciprocates the movable table 3.4 in the line direction, and a drive device that moves the support table 5.6 back and forth in the line direction in conjunction with the movable table 3.4 while approaching and separating from each other on the movable table 3.4. It is equipped with a feed drive device consisting of. That is, the drive is composed of a horizontal rattler that moves horizontally by a drive source (not shown), a pinion 12 that meshes with the horizontal rack 11, and a vertical rack 13 that meshes with the pinion 12 and has its upper end fixed to the lifting frame 1.2. Install the equipment and horizontal rack 1
1, the lifting frame 1.2 can be raised and lowered via the pinion I2 and the vertical rack 13.

Also, a carriage 15 is located at one end of the lifting frame 1.2 and is connected to the movable base 3.4 by a connecting shaft 4, so that it can freely move back and forth in the line direction, and a carriage 15 that moves along a vertical slide groove 16 formed in the carriage 15. The upper end can be raised and lowered,
The intermediate portion is rotatably pivoted to a support shaft 17, and has a camfoil. A drive device is provided, which includes a feed lever 20 whose lower end is swing-driven by a feed cam 19, and which converts the swing of the feed lever 20 into movement of the carriage 15 in the line direction. The platform 3.4 is made to be able to move.

For the drive device that performs the feeding operation, the elevating frame 1
．． 2, the downward facing surface 2I and the inverted surface 22.
Bidirectional inclined surface 23, upward facing surface 24, and upward inclined surface 2
A cam plate 27 is provided with a cam plate 27 for controlling a closed-loop cam surface consisting of a cam surface 26 and an inverted surface 26; A cam follower 29 that rolls and slides along the cam surfaces 21 to 26 is connected to a restraining cylinder 3o that presses the cam follower 29 to the cam surfaces 21 to 26 at the other lower end, and an arcuate cylinder provided at the upper end. An inverted T-shaped lever 33 is connected to a push-pull shaft 32, which will be described later, so that the pivot point can be moved along an elongated hole 31, and it passes through the inside of each movable base 3.4 so as to be able to reciprocate in the line direction. The carriage 15 is equipped with a driving device comprising the push/pull shaft 32 which transmits the driving force to the support base 5 and also transmits the drive force to the support base B via the rack 34, the pinion 35, and the horizontal rack 36. The tilting movement of the lever 33 that moves in the line direction is converted into the movement of the push/pull shaft 32 in the line direction, and the support stands 5 and 6 on the movable table 3.4 that moves in the line direction are moved close to each other, that is, cross half, 8. Scale? I try to stay at #1.

In addition, 37 is the push-pull shaft 32 when the pivot point of the push-pull shaft 32 with respect to the lever 33 is blown and the lever 33 is tilted.
This is a cylinder for changing the amount of movement.

[Problems to be Solved by the Invention] However, the above]-The feeding method and device of the transfer press, as well as the feeding drive device, have problems because the elevating frames 1 and 2, which are long and petty objects, are raised and lowered. It requires a large driving force, and vibration occurs in the elevating frame 1.2, which is long and heavy while transporting the workpiece IO, and the workpiece IO is easily dropped from the vacuum cup 9. Therefore, the line speed is increased and productivity is improved. The problem of not being able to plan for cross/<
The cam plate 27 for enlarging and contracting -7 and 8 has a rough FM structure, and the cam plate 27 has various technical problems such as the inability to enlarge and contract the cross half and 8.

In view of the above-mentioned circumstances, it is an object of the present invention to reduce the driving force, prevent the occurrence of vibration, and simplify the structure of the feed drive device by reducing the size and weight of the elevating portion of the feed device. It is something.

[Means for Solving the Problems] The present invention provides a trolley that can reciprocate along a guide that extends in the line direction and can be fixed at least when transporting a workpiece;
The present invention relates to a transfer press feeding method characterized in that a workpiece is transported using a workpiece support device that can be raised and lowered relative to the trolley.

Further, the present invention provides a pair of guides extending in the line direction on both sides of the mold row and which can be fixed at least when transporting the workpiece, and maintaining substantially the same spacing as the spacing between the molds in each guide. A transfer press is provided with a plurality of trolleys connected together so as to be movable back and forth in a line direction, a work support device is provided on each trolley so as to be movable up and down, and a work gripping tool is provided on each work support device. It depends on the equipment.

In this case, it is possible to provide each trolley with a guide plate that extends in the line direction so that it can move up and down, and to install a pair of workpiece support devices on the guide plate so that they can approach and separate from each other in the line direction. As a mechanism, there is an expansion/contraction bar that is connected to one work support device and has a rack section that passes through the trolley so as to be able to reciprocate in the line direction, and a water rack that is connected to the other work support device and is capable of reciprocating movement in the line direction. , the expansion/contraction bar and a pinion for driving the horizontal rack in opposite directions may be provided inside or outside the trolley.

Furthermore, it is possible to provide two rows of trolleys on each guide so that they can be independently reciprocated in the line direction, and each trolley can be provided with one workpiece support device that can be moved up and down.

Furthermore, each trolley is provided with a workpiece support device that can be raised and lowered, and a pair of workpiece grips F! is attached to the workpiece support device. It is possible to provide the j tool so that it can be moved closer and further away in the line direction.

Further, it is possible to vertically support a workpiece support device at the bottom of each trolley so that it can be raised and lowered.

Further, it is possible to use a cross bar as the work supporting device and a vacuum cup as the work gripping tool.

Further, it is possible to make the work supporting device movable in a direction perpendicular to the line direction.

Further, it is possible to attach a height adjustment mechanism using a cylinder, jack, rack and pinion, etc. to the guide.

Furthermore, the present invention provides a feed lever that can be swung around a support shaft by a feed cam, an elevating link is rotatably attached to one end of the feed lever via a horizontal shaft, and the elevating link is rotatably attached to the support shaft by the elevating cam. A feed drive for a transfer press, characterized in that a swingable y1 lowering lever is provided, and the lifting lever and the lifting link are connected by a lifting rod parallel to the line connecting the support shaft and the horizontal axis and having the same length. It depends on the device.

In this case, an expansion/contraction link is rotatably attached to the horizontal shaft at one end of the feed lever J, an expansion/contraction lever is provided on the support shaft that can be swung by an expansion/contraction cam, and the expansion/contraction lever and the expansion/contraction link are connected to the horizontal shaft. It is possible to connect the connecting line and the lumi with an expansion/contraction rondo of equal length.

Furthermore, the present invention relates to a feed drive device for a transfer press, characterized in that motors are connected to the feed bar of the one-rolley and the lowering bar of the workpiece support device, respectively.

In this case, it is possible to connect a motor to the expansion/contraction bar of the workpiece support device.

[Function] Therefore, in the present invention, the guide is fixed during transport of the work, the trolley is reciprocated in the line direction along the guide, and the work support device is raised and lowered by the trolley 1- to transport the work.

When each trolley is provided with a pair of workpiece support devices, when each guide is provided with a pair of trolleys, - When each workpiece support device is provided with a pair of workpiece grips that can be moved closer to and separated from each other in the line direction, the workpiece Expansion/contraction operations can be added during transportation.

When the workpiece support device is suspended and supported on the trolley, the guide can be provided at a high position, allowing quick maintenance and mold replacement.

When the guide is provided with a height adjustment 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 the swinging of the feed lever by the feed cam, and the lifting and lowering of the workpiece support device is achieved by the reciprocating movement of the trolley in the line direction by the swinging of the lifting link by the lifting cam, lifting lever, and lifting 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 cam, the expansion/contraction lever, and the expansion/contraction rod.

Alternatively, the motor can reciprocate the trolley in the line direction and raise and lower the workpiece support device, and the motor can also perform expansion and contraction operations.

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

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

A pair of guides 40 extending in the line direction on both sides of the rows of the plurality of upper and lower molds 38, 39 inserted in the line direction,
A plurality of trolleys 42 movable in the line direction are provided on the guide 40.41, and the distance between each trolley 42 is maintained approximately the same as the distance between the molds 3g, 38, and 39.39. (1) A feed bar 44 connects one of the most upstream or most downstream trolleys 42 and a feed drive device (described later), and reciprocating movement of the feed bar 44 in the line direction causes each trolley to 42 can be driven back and forth in the line direction at the same time.

A lifting bar 45 that reciprocates in the line direction by a feed drive device to be described later is movably penetrated into each trolley 42, and a rack 4 is placed at the position of the lifting bar 45 inside the trolley 42.
G is provided, and a binion 47 that meshes with the rack 4B and a binion 4 that meshes with the binion 47 without meshing with the rack 46.
8 is rotatably mounted inside the trolley 42, and the binion 4
Vertical racks 49 and 50 that engage with the racks 7 and 48 are provided so as to protrude in the L direction from the upper end or the trolley 42, and extend in the line direction at the ends of the vertical racks 49 and 50J. The guide plate 51 can be moved up and down by the reciprocating movement of the guide plate 45 in the line direction.

Further, an expansion/contraction bar 52 that reciprocates in the line direction is movably penetrated inside each trolley 42 by a feed drive device to be described later, and a rack 53 is provided at the position of the expansion/contraction bar 52 inside the trolley 42. A binion 54 that engages with the guide plate 1-502 is rotatably mounted inside the trolley 42, and a horizontal rack 55 that engages with the binion 54 is provided so as to be movable in the inner line direction of the trolley 42. 1-11 units 58.57 are installed movably in the line direction,
One support stand 56 is supported by the upper end of a vertical rod 58 so as to be able to pass through it, and the lower end of the vertical rod 58 is connected to the horizontal rack 55.
The other support stand 57 is supported at two ends of the vertical rod 59 so as to be able to pass through the vertical rod 59, and the vertical rod 59 is fixed to the expansion/contraction bar 52, and the pinion 54 is fixed by reciprocating the expansion/contraction bar 52 in the line direction. , water (1 cylinder 55, vertical rods 58, 59 to allow the support bases 50, 57 to be moved toward and away from each other).

Opposing supports 5G, 56 and 5 between guides 40.41
7.57 Work support such as crossbar 60 in between! j Z
A workpiece gripper such as a vacuum cup 61 that can be attached to and released from each cross bar 60 is attached to the mold 38,
39 and the workpiece 62 so that the height matches that of the workpiece 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 intermediate portion is supported swingably in the line direction by a support shaft 63, and the cam follower 65 is attached to the cam shaft 6 G-1=
The feed lever 64 is brought into pressure contact with the feed cam 67 so that the feed lever 64 can swing around the support shaft 63 via the cam follower 65 by rotation of the feed cam 67, and the feed lever 64 is placed on the shaft 63 which is the center of swing of the feed lever 64. As clearly shown in FIG. 6, one end of each of the elevating lever 68 and the expansion/contraction lever θ9 is rotatably attached, and a cam follower 70 is attached to the other end of each lever 68, 69. An elevating cam 71 and an expansion/contraction cam 72 to which 70 is pressed are provided on a cam shaft 73, respectively. On the other hand, the feed lever 6
The horizontal shaft 74 is passed through one end of 4, and the horizontal shaft 74-
- The middle part of the dogleg-shaped lifting link 75 is rotatably attached to -, and the dogleg-shaped expansion and contraction link 76
The feed lever 6 is rotatably attached between one end of the elevating link 75 and the intermediate portion of the elevating lever 68.
The upper and lower ends of the lifting rod 77, which is parallel to the line connecting the support shaft 63 and the horizontal axis 74 of 4 and have the same length, are joined together to form a parallelogram link. The upper and lower ends of the expansion rod 78 are connected to the intermediate portion to form a parallelogram link, and the feed lever 64
When the is swung by the feed cam 67, the elevating link 75 can be independently swung via the elevating cam 7L, the lowering lever 68, and the elevating rod 77, and at the same time, the expanding/retracting link 76 can be moved by the expanding/retracting cam 72, the expanding/retracting lever 69, the expanding/retracting It is made to be able to swing independently via the 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 64 and the feed bar 44 can be connected to each other without providing the feed bar 44. (The trolley 42 at the most downstream position may be directly connected with the rod 79), the other end of the lifting link 75 and the lifting bar 45 may be connected with a rod 80, and the other end of the expansion/contraction link 76 and the expansion/contraction bar 45 may be connected directly to each other. The bars 52 are connected by rods 81.

Next, the operation will be explained.

When the feed lever 64 is moved 13 times by the six feed cams, the loft 79 and the feed bar 44 move in the line direction, so that the trolleys 42 connected by the connection bar 43 are integrally reciprocated in the line direction.

While the feed lever 64 is swinging, the elevating cam 71 moves y? When the lowering lever 68 swings relative to the feed lever 64, the lifting link 75 also swings via the lifting rod 77, and the rod 80 and the lifting bar 45 move in the line direction relative to the feeding bar 44. Since the pinion moves to 47.4
8, vertical racks 49, 50, and guide plates 5I, the cross spar 60 is raised and lowered.

Similarly, when the expansion/contraction lever 69 is swung by the expansion/contraction cam 72 relative to the feed lever 64 while the feed lever 64 is rocking, the expansion/contraction link 76 is swung via the expansion/contraction rod 78, and the expansion/contraction link 76 is swung through the expansion/contraction rod 78. Since the bar 52 moves in the line direction relative to the feed bar 44, the pinion 52
A pair of cross pars 60 is expanded and contracted via the horizontal rack 55, vertical rods 58, 59, and supports 51i and 57.

By combining these movements, Figures 37 and 38
A procedure substantially similar to that shown in the figure is carried out, and the workpieces 62 are pressed while being sequentially sent downstream.

At this time, by changing the shapes of the elevating cam 71 and the expansion/contraction cam 72, the stroke and timing of elevating and lowering the cross spar 60 and expanding/retracting can be adjusted arbitrarily without being affected by the feeding stroke of the trolley 42 by the feeding lever 64. It is possible to change the shape of the workpiece 62 and Pl.
If it is not necessary to expand or contract the crossbar according to type i, use an appropriately shaped expansion/contraction cam 72 to keep the expansion/contraction lever 69 at a constant angle with respect to the feed lever 64 at t1.
It's good to make one move.

The feed drive device in the first embodiment has a simple structure;
Moreover, the stroke and timing of raising and lowering the crossbar 60 and expanding and contracting can be freely set, and the stroke that can be obtained is large. Furthermore, since each part is connected using a pin joint, there is little play and it is possible to press with high precision in dimensions.

In addition, the feeding device moves a trolley 42 back and forth in the line direction on guides 40, 1 which are fixed so as not to rise or fall during feeding of the workpiece G2R1, and a guide plate 5 supported on the trolley 42.
1. Only the work supporting devices such as the support tables 56 and 57 and the cross bar 60 are moved up and down, so the lifting parts are smaller and lighter, and the cross bar 60 can be moved up and down with less power. In addition, the elevating part has been made smaller and lighter, so no vibration is generated during operation, and the vacuum cup 60 or workpiece 62 is reliably attracted to the workpiece 51, which will not fall due to vibration during transportation. This makes it possible to increase the speed of processing, thereby improving productivity.

7 and 8 are modifications 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 outside the trolley 42, and by meshing them with a pinion 54° that moves in the line direction together with the trolley 42, the trolley 42 can be moved. The weight is further reduced, and in addition to the effects of the first embodiment, the line can be made faster.

FIG. 9 shows another modification of the first embodiment of the invention, in which the vertical rods 58' and 59° lower end sides respectively have water flood racks 55,
The expansion/contraction bar 52 is supported so as to be able to pass through the expansion/contraction bar 52, and has the same effect as the first embodiment. It will be done.

FIG. 1θ shows another modification of the first embodiment of the present invention, in which the feed lever 64 and the feed bar 44 are connected via a cart 82 that can move the kite 4° in the line direction, and a lift link is provided. 75 and the descending bar 45 are connected via a trolley 83 movable in the line direction on a trolley 82, and the expansion/contraction link 76 and the expansion/contraction bar 52 are connected to the trolley 821. ．． are connected via another carriage 84 that is movable in the line direction, and the same effects as the first embodiment are achieved.

Note that 85 is a vertical slide provided on the carts 82 and 83, and 86 is a slide block that moves 18 times within the slide 7M85.

FIG. 11 shows another modification of the first embodiment of the present invention, in which racks 127, 128 and 129 are provided on the feed bar 44 and the expansion/contraction bar 52 on the y7 descending par 451F, respectively. Binion 13 meshing with .128.129
Motor 1 such as a servo motor with 0°131.132
33 degrees 134 and 135, the feed bar 44, the elevating bar 45, and the expanding/contracting bar 52 are reciprocated in the line direction, respectively, and the same effects as in the first embodiment are achieved.

12 to 14 are explanatory diagrams of a second embodiment of the present invention, in which a pair of crossbars 60 are separately raised and lowered by two trolleys 42 and 42' in substantially the same configuration as the first embodiment. Each trolley 42° and 42° is supported freely and connected to two sets of feed drive devices each equipped with a feed lever 64 and a lifting lever 68 (in FIG. 13, the trolley 42
The feed drive device for ° is omitted. In addition, the feed drive device shown in FIG. 5, or FIG. 1O, or FIG.
Of course, it is also possible to modify the structure as appropriate so that only the lowering mechanism is provided. The same applies to the following embodiments and modifications thereof.)

In this embodiment, the feed levers 64 of the two sets of feed drive devices are operated separately so that one set of trolleys 42, 42', that is, a pair of crossbars 60, can perform a feeding operation and an expansion/contraction operation.

Even in this case, as in the first embodiment, the elevating part can be made smaller and lighter, reducing the driving force and preventing the workpiece from falling due to vibration, making it possible to improve productivity by increasing the speed of the line. Since the m opening of the lifting/lowering portion of each 1.sigma saw 42 is smaller than that of the first embodiment, the line can be made faster.

FIGS. 15 to 18 are explanatory views of a third embodiment of the present invention, which has substantially the same configuration as the first embodiment, in which a single crossbar 60 is supported on a trolley 42 so as to be movable up and down. As a configuration, a motor 87 is installed in the longitudinal direction inside the cross par 60.
A pinion 89 is attached to the shaft 88 at a predetermined interval, and a pair of rack bars 90 and 91 extending in the line direction are fitted together at the tenth position of the pinion 89. Attach the vacuum cup 6I to the tip of the 90.91 and connect the motor 8 such as a servo motor.
7, the rack bar 9091 is arbitrarily moved in the opposite direction via the lever 88 and pinion 89 so that the vacuum cup 61 is almost opposite to JgM, thereby expanding and contracting the pair of cross bars 60.

Even in this case, as in the above-mentioned embodiment, the elevating part can be made smaller and lighter, and the workpiece 62 can be removed by reducing the driving force and vibration.
Since the trolley 42 is lighter in weight, it is possible to increase the speed of the line.

FIG. 19 shows 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 at a required interval in the cross bar 60, and the elongated holes 92.93 are provided with pins 94.9, respectively.
5 is movably provided, and a crossbar 60 is attached to one pin 94.
While connecting a cylinder 96 that expands and contracts in the longitudinal direction,
One diagonal portion of the pantograph ring 97 is pivotally attached to the pins 94 and 95, a vacuum cup G1 is attached to the other diagonal portion of the pantograph ring 97, and the pin 94 is moved along the elongated hole 92 by expansion and contraction of the cylinder 96. The pantograph ring 97 is moved and the pantograph ring 97 is deformed to move the vacuum cups 61 toward and away from each other, and the same effects as in the third embodiment can be obtained.

In addition, 98 is a link that connects between the bottles 95, 99 is a telescopic diagonal member that connects between vacuum cups 61, +0
0 is a guide for a diagonal member 99 provided on the cross bar 60.

20 to 23 are explanatory diagrams of a fourth embodiment of the present invention, in which molds 3g, 3
9, when the upper mold 38 is separated from the press device (not shown) and placed on the lower mold 39, the guide 4 is placed between the upper surface of the upper mold 38 and the track, or at a higher position.
0° (in FIG. 20, the position is higher than the upper limit position of the mold 38 on the L side), and a cross bar 60' is attached to the lower end of the vertical rack 49.

In addition, the gearbox 10 attached to the most downstream trolley 42
1 to the rod 79 at the upper end of the feeding par 64,
A sector gear 10 that transmits driving force to the elevating par 45 via gears 102 and 103 provided in the gearbox +01.
4 is connected to a rod 80 at one end of the elevating link 75.

In addition, 105 is the mold 3g on which the lower mold 39 is placed, a bolster that can be pulled out when replacing the mold 39, and 10B is the trolley 4.
2 roller, 107 is a cylinder for adjusting the guide 40° height, and 108 is a restraining cylinder.

Even in this case, similarly to the third embodiment, the elevating part can be made smaller and lighter, thereby reducing the driving force and preventing the workpiece 62 from falling due to vibration, thereby increasing productivity by increasing the speed of the line. .

Furthermore, in this embodiment, since the guide 40' can be disposed at a high position, there is no need to raise and lower the guide 40' to retreat when maintaining or replacing the molds 38 and 39, and the molds 38 and 39 can be moved quickly. 39 maintenance or replacement
17 capabilities, further improving productivity.

24 and 25 show a modification of the fourth embodiment of the present invention, in which a trolley 42 equipped with a pair of crossbars of 60 degrees is provided as in the first embodiment, and the fourth embodiment You can get the same action and effect as.

FIGS. 26 and 27 show another modification of the fourth embodiment of the present invention, in which vertical racks 49.50 are supported at the lower end! i member 10
9 is fixed, and the opening/closing rack 1 reciprocates in the line direction.
10 penetrates inside each trolley 42, and the opening/closing rack 11
0, and is rotatably supported on the trolley 42 by a bearing or the like (not shown) at the center of rotation of the pinion II+] - The upper end of the rotating shaft 112 extending upward is fixed, and the lower part of the rotating shaft 112 is fixed. The support member 1
A linear hair ring 113 that penetrates through the interior of the rotating shaft 112 and is rotatable by the rotating shaft 112 and is movable downward relative to the rotating shaft 112 is fitted onto the inner part of the supporting member 109 of the rotating shaft 112, and is linked to the linear Binion 114 on the outer circumference of +13
A finger f! that extends in the line jj direction and the bending direction is equipped with a rack that engages with the pinion +14. 11115
etc. work support! 1 device is provided on the support member 109 so as to be able to be freely protruded and stored, and the finger 1 device is provided on the mold side end of the finger foot 115.
A work gripping tool such as No. 18 is attached, and as the opening/closing rack 110 moves in the line direction, the finger 116 at the tip of the fin support 115 opens and closes in a direction perpendicular to the line direction.

Further, an opening/closing cam 117 and a cam follower 11 are rotatably mounted on the support shaft 63 and are rotatable by a drive device (not shown).
The opening/closing lever 119 is swing-driven via the feed lever G4-1-: the L-shaped opening/closing link 120 attached to the end, and the pivot point of one of the opening/closing links 120 and the opening/closing lever 119. An opening/closing rod 121 that is connected to form a parallelogram link is provided, and the other pivot point of the opening/closing link 120 and the sector gear 122 provided on the gearbox 101 are connected by a rod 23 whose length is equal to the rod 79. Second
gear 1 connected to form a parallelogram link and meshing with sector gear 122 provided in gearbox +01.
24 and a gear 125 provided coaxially with the gear 124, driving force is transmitted to the opening/closing rack +10.

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

FIGS. 28 and 29 show another modification of the fourth embodiment,
In a configuration substantially similar to the modified example shown in FIGS. 26 and 27,
The opening/closing operation of the fingers 116 is performed by an opening/closing cylinder 12G.

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

FIGS. 30 to 32 are explanatory views of a fifth embodiment of the present invention, which has substantially the same configuration as the first to fourth embodiments, and has a structure in which an applied 136 (pillar) of a transfer press extends downward. A kite member 137 is provided, the guide portion 4.4
A pair of trolley guides 138 extending in the line direction are attached to the guide body 138 that moves inward along the line 137; Fall+iJ
Supports the ability, height tone FO between 11 apply l-13G and corresponding kite 40.41! Connect 1 (number of cylinders 139, 140) as 8 horizontally.

In addition, two hydraulic chambers 14 are provided on both sides of the pistons 141 and 142.
Two cylinders 147, 148 with cylinders 3, 144, and 145, 146 are connected in series via Roso 1ζ 149 to form a tuned cylinder 150, and the same cylinder 15
One hydraulic chamber 143, 145 of each cylinder 147, 148 constituting 0 and the loft side of a plurality of cylinders 139, 140 connected to each guide 40, 4+ are connected by passages 151, 152, respectively. , each cylinder 139.140
When the forward side is connected to the switching valve 154 using the branch passage 153, the switching valve 154 and one of the remaining hydraulic pressure chambers 146 of the tuned cylinder +50 are connected to the flow passage +53. It is connected by a liquid path 156 equipped with a pilot check valve 155, and further connected to the switching valve 155 and the pump 1.
57 and tank 158 are connected.

Note that the trolley, workpiece support device, etc. are omitted in FIGS. 30 and 31.

In this embodiment, it goes without saying that the same effects as in the first to fourth embodiments can be achieved, but in addition, the cylinder 139
．． By expanding and contracting the mold 140, the mold 38,
Guides 40 and 4 depending on the height of 39 and the conveyance height of the workpiece.
The guide 40,
41 can be evacuated to a position where it does not interfere with work.

That is, the pressurized liquid in the tank 157 is supplied to the loft side of the cylinders 139 and 140 through the switching valve 154 and the synchronized cylinder 150 to contract the cylinders 139 and 140, thereby raising the guides 40 and 4+, and conversely, the pressure liquid in the tank 157 The guides 40 and 41 can be lowered by supplying pressure fluid to the head side of the cylinders 139 and 140 through the switching valve +54 to extend the cylinders 139 and 140.

At this time, tune cylinder! 50 and the cylinder 139
, 140, so that the changes in volume of the hydraulic chambers 143145 that supply pressure fluid to each of the guides 40 and 4+ are made equal, so that the pair of guides 40 and 4+ can be synchronized and rotated one round in height.

In addition, since the pilot reverse valve 155 is provided in the liquid path 156, backflow of the pressure liquid from the synchronized cylinder +50 is prevented, and the guides 40 and 41 can be maintained at a constant height. For the 40th and 410th trains, the pressure fluid in the fluid path 153 is used as a pilot port and the pilot check valve 155 is opened, so that the pressure fluid can be discharged from the branch path 156 to the tank +58.

33 and 34 show a modification of the fifth embodiment of the present invention, in which a jack 16+ driven by a motor 159 and a speed reducer 160 is used as the height adjustment mechanism instead of using a cylinder. , the same effects as in the fifth embodiment can be obtained.

FIGS. 35 and 36 show another modification of the fifth embodiment of the present invention, in which the height adjustment mechanism is a pinion 162 connected to a reduction gear 160 and engaged with the pinion instead of a jack. In addition, a vertically extending rack 163 whose upper end is connected to the guides 40 and 41 is used, and the same effects as in the fifth embodiment can be obtained.

It should be noted that the transfer press feeding method, apparatus, and feeding drive device of the present invention are not limited to the above-mentioned embodiments, and the feeding device and feeding drive device of each of the embodiments and modifications described in "2" can be used as appropriate. It goes without saying that the work supporting device may be provided with three different amounts of water, and that various modifications may be made without departing from the gist of the invention.

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

■ The trolley is reciprocated in the line direction on a fixed guide that prevents it from descending when transporting the workpiece, and only the workpiece support device such as a crossbar supported by the trolley is raised and lowered, making the lifting part smaller and lighter. Is it less power? In addition to this, the Y/lower part has been made smaller and lighter, so there is no vibration during operation.
Therefore, since the workpiece does not fall due to vibration during conveyance, it is possible to make the line +QJ, and productivity can be improved.

■ Easy expansion and contraction by providing a pair of workpiece support devices on each trolley, a pair of trolleys on each guide, or a pair of workpiece grips on a single workpiece support device so that they can approach and separate in the line direction. can be made to perform an action.

- By suspending the workpiece support device FIt on the trolley, the guide can be installed at a high position, allowing quick maintenance and mold replacement.

■ By attaching a work support device such as a finger shaft that can be lowered to a trolley that is equipped with a work gripping tool such as a finger and can be moved in a direction perpendicular to the 21-line direction along a guide, the F? The i+, which can open and close in both the lowering and forwarding motions, is used as the next feed bar (corresponding to the y? lowering frame described in the conventional example of this application, which can be opened and closed in the previous example). straight(
Compared to the case where & fingers are attached, the drive device is significantly smaller and lighter, and vibration is reduced, making it possible to transport workpieces at α speed.

- By providing a height adjustment mechanism on the guide, it is possible to adjust the ω height of the guide during pressing and to retreat the guide during maintenance.

■ Feed lever swings by the feed cam, lift cam and lift lever - 1k with lift rod! ．． ■Equipped with a movable elevating link, or an expansion cam and expansion lever J
By providing an expansion/contraction link that moves tm with an expansion/contraction rod in D, the structure can be made into a cylinder, and the stroke and timing of raising and lowering the crossbar and expansion/contraction can be set freely, making it possible to easily handle large workpieces. Moreover, since each part is connected using a pin joint, there is little backlash and it is possible to press with high dimensional accuracy.

■ Feed operation and y? using a motor? The structure can be simplified by performing the lowering operation or even the expansion/contraction operation, and the stroke and timing of raising/lowering and expansion/contraction can be freely set, allowing a large stroke to be obtained. Press is possible.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a feeding device according to a first embodiment of the present invention, and FIG.
The figure is a side view of Figure 1, Figure 3 is an enlarged view of the Rolly of Figure 1, Figure 4 is a front view of Figure 3, and Figure 5 is a side view of the feed drive device used in Figure 1. , 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, and FIG.
The figures are a front view of FIG. 7, FIG. 9 is a side view of another modification of the first embodiment of the invention, and FIG. 10 is a side view of another modification of the first embodiment of the invention. FIG. 11 is a schematic side view of yet another modification of the present invention, FIG. 12 is a plan view of a feeding device according to a second embodiment of the present invention, FIG. 13 is a side view of FIG. 12, and FIG. 12 is a side view of the feed drive device used, FIG. 15 is a plan view of the feed device of the third embodiment of the present invention, and FIG. 16 is a side view of the feed drive device used in the first embodiment.
5 is a side view, FIG. 17 is an enlarged view of the trolley in FIG. 15, FIG. 18 is an enlarged perspective view of the crossbar in FIG.
9 is a plan view of a modification of the third embodiment of the present invention, FIG. 20 is a side view of the fourth embodiment of the present invention, FIG. 21 is an enlarged view of the trolley in FIG. 20, and FIG. Front view of Figure 21, 2nd
Figure 3 is an explanatory diagram of the feed drive device used in Figure 20, and Figure 24.
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. 27 is a side view of a modification of the fourth embodiment of the present invention. 26 is a front view of the trolley shown in FIG. 26, FIG. 28 is a side view of another modification of the fourth embodiment of the present invention, FIG. 29 is a front view of the trolley shown in FIG. 28, and FIG. 30 is a front view of the trolley shown in FIG.
The figure is a partially omitted side view of the fifth embodiment of the present invention;
30 is a plan view of FIG. 30, FIG. 32 is a hydraulic circuit diagram used in FIG. 33, FIG. 33 is a plan view of a deer-shaped example of the fifth embodiment of the present invention, and FIG. 34 is a side view of FIG. 33. 35 is an f-plane view of another modification of the fifth practical example of the present invention, and FIG. 36 is a
37 is a perspective view of the feeding device of the conventional transfer press, FIG. 38 is an explanatory view of the operation of FIG. 37, and FIG. 39 is a side view of the feeding drive device of FIG. 37. In the figure, 38.39 is a mold, 40.40', 41 is a fixed guide, 42.42' is an I-rolly, 44 is a feeding bar, 4
5 is a lift bar, 51 is a guide plate, 52 is an expansion/contraction bar, 53.53° is a rack, 54 and 54° are binions, 5
5 is a horizontal rack, so and coo are crossbars, 161 is a vacuum cup, 62 is a workpiece, 63 is a spindle, 64 is a feed lever, 67 is a feed cam, 68 is a lift lever, 69 is an expansion/contraction lever, 71 is a lift cam, 72 is an expansion/contraction cam, 74 is a horizontal axis, 75 is an elevating link, 76 is an expansion/contraction link, and 77 is a y?
descending rod, 78 is an expansion/contraction rod, 115 is a finger shaft, 1
16 is a finger, 133, 134, 135 is a motor, 1
39° 140 is a cylinder, 161 is a jack, IG2 is a binion, and ]63 is a rat.

Claims (1)

[Scope of Claims] 1) A workpiece is transported using a trolley that can reciprocate along a guide that extends in the line direction and can be fixed at least when transporting the workpiece, and a workpiece support device that can be raised and lowered with respect to the trolley. A transfer press feeding method featuring: 2) A pair of guides that extend in the line direction and can be fixed at least when transporting the workpiece are arranged on both sides of the mold row, and a plurality of guides are connected to each guide with substantially the same distance as the distance between the molds. A feeding device for a transfer press, characterized in that a trolley is provided so as to be movable back and forth in a line direction, a work support device is provided on each trolley so as to be movable up and down, and a work gripping tool is provided on each work support device. 3) A pair of guides that extend in the line direction and can be fixed at least when transporting the work are provided on both sides of the mold row, and a plurality of guides are connected to each guide with substantially the same distance as the distance between the molds. A trolley is provided so as to be movable back and forth in the line direction, a guide plate extending in the line direction is provided on each trolley so as to be movable up and down, a pair of workpiece support devices are provided on the guide plate so as to be movable toward and away from each other in the line direction, and each of the workpieces is supported A feeding device for a transfer press, characterized in that the device is equipped with a work gripping tool. 4) The feeding device for a transfer press according to claim 3, further comprising a mechanism provided inside the trolley for moving the pair of workpiece supporting devices closer to each other and separating them from each other. 5) The feeding device for a transfer press according to claim 3, further comprising a mechanism provided outside the trolley for moving the pair of workpiece supporting devices closer to each other and separating them from each other. 6) an expansion/contraction bar including a rack portion through which a mechanism for moving a pair of work support devices closer to each other and moving them closer to each other is connected to one work support device and passes through the trolley so as to be able to reciprocate in the line direction;
6. A transfer press feeding device according to claim 4, comprising a horizontal rack that is connected to the other work supporting device and capable of reciprocating in the line direction, and a pinion that drives the expansion/contraction bar and the horizontal rack in opposite directions. 7) A pair of guides that extend in the line direction and can be fixed at least when transporting the workpiece are arranged on both sides of the mold row, and a plurality of guides are connected to each guide with substantially the same distance as the distance between the molds. The present invention is characterized in that two rows of trolleys are provided so as to be able to independently move back and forth in the line direction, each trolley is provided with one workpiece support device that can be moved up and down, and each workpiece support device is provided with a work gripping tool. Transfer press feeding device. 8) A pair of guides that extend in the line direction and can be fixed at least when transporting the work are provided on both sides of the mold row, and a plurality of guides are connected to each guide with substantially the same distance as the distance between the molds. The trolleys are provided so as to be movable back and forth in the line direction, a workpiece support device is provided on each trolley so as to be movable up and down, and a pair of workpiece grips are provided on the workpiece support devices so as to be movable toward and away from each other in the line direction. Transfer press feeding device. 9) A pair of guides that extend in the line direction and can be fixed at least when transporting the work are arranged on both sides of the mold row, and a plurality of guides are connected to each guide with substantially the same spacing as the mold spacing. a trolley is provided so as to be movable back and forth in the line direction, and a work support device is suspended and supported at the bottom of each trolley so as to be movable up and down;
Claims 3 to 8, wherein the work supporting device is provided with a work gripping tool.
Feeding device of the transfer press described. 10) A feeding device for a transfer press according to claims 3 to 9, wherein the work supporting device is a cross bar and the work gripping device is a vacuum cup. 11) A feeding device for a transfer press according to any one of claims 3 to 10, wherein the work supporting device is movable in a direction perpendicular to the line direction. 12) A feeding device for a transfer press according to any one of claims 2 to 11, characterized in that a height adjustment mechanism is attached to a pair of guides extending in the line direction. 13) The feeding device for a transfer press according to claim 12, wherein the height adjustment mechanism is a cylinder. 14) The transfer press feeding device according to claim 12, wherein the height adjustment mechanism is a jack. 15) The feeding device for a transfer press according to claim 12, wherein the height adjustment mechanism is a rack and pinion. 16) A feed lever is provided that can be swung around a support shaft by a feed cam, an elevating link is rotatably attached to the upper end of the feed lever via a horizontal shaft, and the elevating link is rotatable on the support shaft by the elevating cam. A feed drive device for a transfer press, characterized in that a lift lever is provided, and the lift lever and the lift link are connected by a lift rod that is parallel to the line connecting the support shaft and the horizontal axis and has the same length. 17) An expansion/contraction link is rotatably attached to the horizontal shaft at the upper end of the feed lever, an expansion/contraction lever is provided on the support shaft that can be swung by an expansion/contraction cam, and a line connects the expansion/contraction lever and the expansion/contraction link to the support shaft and the horizontal axis. 17. The feed drive device for a transfer press according to claim 16, wherein the feed drive device for a transfer press is connected by an expanding and contracting rod that is parallel to and of equal length. 18) A feed drive device for a transfer press, characterized in that motors are connected to the feed bar of the trolley and the lifting bar of the work support device, respectively. 19) The feed drive device for a transfer press according to claim 18, wherein a motor is connected to the expansion/contraction bar of the work support device.