JPH07112888B2 - Turnover device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a turnover device that inverts a sheet material formed by, for example, a double-action press and conveys it to the next transfer press.

Conventional technology A jaw that clamps and unclamps with a cylinder
A turnover device is known which is provided on a carrier so as to be rotatable by 180 degrees by a motor, and by which a sheet material formed by a double-action press is taken out, inverted and conveyed to the next transfer press by this joo. ing.

Problems to be Solved by the Invention With such a device, it is difficult to synchronize the 180-degree turning operation of the yaw and the double-acting press, and the reversing operation of the sheet material cannot be performed smoothly.

Further, a turnover device is known, which is provided with an unloader for taking out the molded product in the press and a mechanism for transporting the molded product, in addition to the aforementioned jaw that rotates 180 degrees. It is very difficult to carry out the mechanism in a predetermined order and synchronize it with the operation of the press.

[Means and Actions for Solving Problems]

In a turnover device provided with a sheet material take-out mechanism D, a turnover C, and a sheet material conveying mechanism E adjacent to the press, a guide rail 21 is provided adjacent to the press so as to be vertically movable, and along the guide rail 21. A carrier is movably provided, a sheet material support member 54 is attached along a portion of the guide rail 21 spaced from the press, and a jaw 25 for gripping a molded product F in the press is provided at a position near the press of the carrier. The sheet material take-out mechanism D is attached so as to be reciprocally movable toward the press, the rotary shaft 13 is attached to the main body 1 adjacent to the press, and the turn arm 3 provided with the jaw 2 is attached to the rotary shaft 13.
By rotating the rotary shaft 13 in the forward and reverse directions, the jaw 2 becomes substantially horizontal on the press side of the rotary shaft 13, and the jaw 2 becomes substantially horizontal on the side opposite to the press from the rotary shaft 13. And a turnover C which is rotatable about 180 degrees in the second posture and has a sheet material receiving portion at a portion separated from the presto of the carrier and a sheet material supporting material when the guide rail 21 is raised.
The sheet material conveying mechanism E is mounted so as to project above 54 and descend below the sheet supporting member 54 when descending, and the first, second and second cam shafts 32 rotated by the power take-off shaft 34 of the press are attached. 3 cam is attached, and the first lever swung by the first cam and the rotary shaft 13 are mechanically connected so that the rotary shaft 13 rotates forward and backward by the swing of the first lever. , The guide rail 21 and the second lever which is swung by the second cam, and the guide rail 21 when the second lever swings.
Are mechanically linked so that the carrier moves up and down, and the third lever rocked by the third cam and the carrier are mechanically linked so that the carrier reciprocates by the rocking of the third lever. Turnover device.

As a result, by moving the jaw 25 back and forth and moving the guide rail 21 up and down, the molded product F in the press can be taken out of the press, and by rotating the rotary shaft 13 forward and backward, the molded product taken out of the press. Sheet material support by flipping F upside down
54 can be placed, the guide rail 21 can be moved up and down, and the carrier can be reciprocally moved to move the sheet material receiving portion up and down and reciprocally, so that the molded product F can be conveyed. Can be reversed and transported.

In addition, the cam shaft 32 rotated by the power take-off shaft 34 of the press
The first, second, and third cams provided on the swaying oscillate the first, second, and third levers, thereby rotating the rotating shaft 13 forward and backward, moving the guide lever 21 up and down, and reciprocating the carrier. Therefore, the taking-out operation, the reversing operation, and the carrying operation of the molded product in the press can be performed in a predetermined order in synchronization with the operation of the press.

Example A turnover C, a sheet material take-out mechanism D, and a sheet material conveying mechanism E are arranged between a double-acting press A and a transfer press B which are separated from each other in the left-right direction.

The turnover C includes a pair of front and rear main bodies 1 and 1, on which a turn arm 3 having a yaw 2 is mounted rotatably by 180 degrees. The sheet material F can be inverted 180 degrees by gripping the front and rear edges of F and rotating the turn arm 3 180 degrees.

The pair of front and rear main bodies 1 are movable in the front and rear direction along a pair of left and right guide rails 5 arranged in front and rear of the base 4, and are rotated by a pair of front and rear feed motors 6, 6. When the feed screw 6 is screwed into the pair of feed screw rods 7 and the feed motor 6 rotates the feed screw rods 7 in the forward and reverse directions, the main body 1 moves in the front-rear direction so that the distance between the pair of jaws 2 can be adjusted. A spline shaft 8 is fitted to the main body 1, each spline shaft 8 is connected by a shaft 9, and segment gears 10 are respectively spline fitted,
Each segment gear 10 is connected to a rotary shaft 13 via an intermediate gear 11 and a gear 12, and the turn arm 3 is fixed to the rotary shaft 13 and a reaction is performed between the rotary shaft 13 and the main body 1. Cylinder 14 is pivotally connected to turn arm 3
Is held in a horizontal position facing the double-acting press A.

The sheet material take-out mechanism D is provided with a pair of front and rear sheet material supports 20 and 20 arranged between a pair of jaws 2 and 2, and a first carrier 22 that can travel left and right along a guide rail 21. A pair of sub-carriers 23 is provided on the carrier 22 so as to be movable in the left-right direction by a cylinder 24, and a joe 25 is mounted diagonally upward toward the double-acting press A on each sub-carrier 23.

The guide rail 21 is vertically movable by a vertical rod 27 and a guide 28, and is held in a lowered position by a lift cylinder 29 to rotate a segment gear 31 meshed with a rack tooth 30 of the vertical rod 27. I'm trying to rise.

In FIG. 5, reference numeral 32 denotes a cam shaft, which is vertically arranged between the double acting press A and the transfer press B and has a power takeoff shaft 34 of the double acting press A through a gear group 33. A turning cam 35, a lifting cam 36, and an unloading cam 37 are fixed to the cam shaft 32, and a first lever 38 that is swung by the turning cam 35 is connected via the first link 39. Lifting cam, pivotally connected to shaft 9
A second lever 40 swung by 36 is connected to each segment gear 31 via a second rod 41 and a third rod 42, and a third lever 43 swung by an unloading cam 37.
Is connected to the first carrier 22 by a fourth rod 44.

The sheet material transport mechanism E includes a second carrier 50 that can travel along the pair of guide rails 21. The second carrier 50 is connected to the first carrier 22 by a shaft 51, and
The second carrier 50 has first and second sheet material receiving portions 52, 5
3 is provided to move the sheet material F from the reverse position I to the intermediate position II.
It can be conveyed to the carry-out position III via the. That is, the sheet support member 54 is provided in parallel with the first and second sheet material receiving portions 52, 53, and the second carrier 50 is arranged in the first carrier 22.
The sheet material is supported on the sheet support material 54 by descending together.

The carry-out position III is the clamp position of the pair of trough bars 60, 60 of the transfer brace B, so that the sheet material F can be clamped by the pair of trough bars 60, 60, and at the carry-out position III, the sheet material lifter 6 is provided.
1, the sheet material lifter 61 allows a lifting table 62 to move up and down by a rack rod 63 and a pinion 64 as shown in FIG. 6, the pinion 64 is connected to a motor 65, and the lifting table 62 is connected to a cylinder. It is held in a lowered position by 67, and the lifting table 62 can be raised by rotating the motor 65, and the lifting plate 62 has a support plate.
66 is provided.

Then, the sheet material F formed by the double-action press A is taken out onto the sheet material support 20 by the sheet material take-out mechanism D in synchronism with the double-action press A, and then the sheet material F is turned by the Jaw 2 of the turnover C. Grasp both edges of the turn arm 3
By rotating 180 degrees, the sheet material F can be turned upside down 180 degrees in synchronism with the double-acting press A and placed at the reversal position I. After this, the second carrier 50 can be turned up-down, left-right in synchronism with the double-acting press A. The sheet material F can be conveyed to the carry-out position III by performing the rectangular movement of.

Then, at the carry-out position III, the supporting plate 66 is moved up and down by the elevating table 62 to position the sheet material F at the clamp height position of the transfer bar 60, which is clamped by the transfer bar 60 and conveyed to the transfer press B.

Further, since the cam shaft 32 is provided vertically and each cam is mounted horizontally, it is not necessary to form the bit on the floor by disposing the cam shaft 32 and each cam on the floor surface.

In addition, the joyo 25 for taking out the sheet material is the first carrier 22
Since it is provided in the sub-carrier 23 that is movably provided by the cylinder 24, sheet materials having different widths can be taken out without changing the stroke of the first carrier 22.

Further, the first carrier 22 and the first carrier 50 are connected, and the first carrier 22 and the turn arm 3 of the turnover C move vertically and horizontally by a cam provided on the same cam shaft 32. Since the sheet material is rotated once, the sheet material is taken out, the sheet material is inverted, and the sheet material is conveyed in synchronization.

〔The invention's effect〕

By moving the jaw 25 back and forth and moving the guide rail 21 up and down, the molded product F in the press can be taken out of the press, and by rotating the rotating shaft 13 forward and backward, the molded product F taken out of the press can be moved up and down. Since the sheet material supporting member 54 can be placed upside down, the guide rail 21 can be vertically moved, and the carrier can be reciprocally moved to vertically move and reciprocate the sheet material receiving portion, so that the molded product F can be conveyed. The molded product F can be taken out and inverted and conveyed.

In addition, the cam shaft 32 rotated by the power take-off shaft 34 of the press
The first, second, and third cams provided on the swaying oscillate the first, second, and third levers, thereby rotating the rotating shaft 13 forward and backward, moving the guide lever 21 up and down, and reciprocating the carrier. Therefore, the taking-out operation, the reversing operation, and the carrying operation of the molded product in the press can be performed in a predetermined order in synchronization with the operation of the press, and a special device is not required for the synchronization.

[Brief description of drawings]

The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are overall plan views, front views, FIG. 3 is a detailed side view of a turnover portion, FIG. 4 is a sectional view, and FIG. FIG. 6 is a schematic perspective view of the drawing, and FIG. 6 is an explanatory view of the sheet material lifter. 1 is a main body, 2 is a yaw, 3 is a turn arm, 32 is a cam shaft, and 34 is a power take-off shaft.

Claims (1)

[Claims] 1. A turnover device provided with a sheet material take-out mechanism D, a turnover C, and a sheet material conveying mechanism E adjacent to a press, and a guide rail 21 is provided adjacent to the press so as to be vertically movable. A carrier is movably provided along the guide rails 21, a sheet material support member 54 is attached along a portion of the guide rails 21 separated from the press, and a molded product F in the press is placed at a position near the press of the carrier. The gripping jaw 25 is reciprocally attached to the press to form the sheet material take-out mechanism D, the rotary shaft 13 is attached to the main body 1 adjacent to the press, and the turn arm 3 having the jaw 2 on the rotary shaft 13 is attached. Install,
By rotating the rotary shaft 13 in the forward and reverse directions, the jaw 2 becomes substantially horizontal on the press side of the rotary shaft 13, and the jaw 2 becomes substantially horizontal on the side opposite to the press from the rotary shaft 13. In addition, the sheet material receiving portion is provided at a portion of the carrier separated from the press, and the sheet material supporting member 54 is provided when the guide rail 21 is raised.
The sheet material conveying mechanism E is mounted so as to project further upward and lower than the sheet material supporting member 54 when descending, and the first, second, and third cam shafts 32 rotated by the power take-out shaft 34 of the press are attached. Is attached, and the first lever swung by the first cam and the rotary shaft 13 are mechanically connected so that the rotary shaft 13 rotates forward and backward by the swing of the first lever. The second rail swung by the second cam and the guide rail 21 move between the guide rail 21 and the guide rail 21 when the second lever swings.
Is mechanically connected so that the carrier moves up and down, and the third lever rocked by the third cam and the carrier are mechanically connected so that the carrier reciprocates by the rocking of the third lever. A turnover device characterized in that