JPS6113200Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a conveyance device for automatically conveying a pre-process press work to a post-process press.

Conventionally, this type of equipment is of a two-carry, three-idle type, in which the press work is carried out from the pre-process press by an unloader carrier, placed at the first idle position of the stationary lever, and then transferred to the first idle position by the unloader carrier again. The press work at the second idle position is placed at the second idle position, the loader carrier places the press work at the second idle position at the third idle position, and the loader carrier again transports the press work at the third idle position to the post-process press. is proposed.

However, in the above-described two-carrier third-idle type device, while the unloader carrier and loader carrier each move to the second idle position, the presses in the front and rear steps are in a blank firing state.
There was a problem in that production efficiency decreased, setup was time-consuming, detection of defective workpieces was delayed, and post-process pressing was wasted.

Furthermore, since there is a limit to the movement strokes of the unloader carrier and the loader carrier, there is a problem in that when used in press equipment where the distance between the front press and the rear press is long, the movement stroke corresponding to the distance cannot be set freely.

This idea was made in view of the above-mentioned conventional problems, and basically adopts a 3-carry, 1-idle type, which eliminates blank presses by reducing the idle position, improves setup efficiency, and eliminates defective workpieces. The purpose of this invention is to enable early detection of rework, and also to allow the movement stroke of the intermediate carrier to be arbitrarily set, so that it can be immediately applied to press equipment with a long front and rear press interval.

Therefore, this invention has a first idle position and a second idle position between the pre-process press position and the post-process press position.
The press work conveyance device has an idle position, is capable of reciprocating between the pre-process press position and the first idle position, and is capable of receiving the press work by rising at the pre-process press position. , further includes an unloader carrier that can be lowered at a first idle position, and an unloader carrier that can reciprocate between the first idle position and a second idle position, and the unloader carrier is moved from the pre-process press position to the first idle position at the raised position. Second when moving
an intermediate carrier that has been moved from an idle position to a first idle position and can receive press work from the unloader carrier when the unloader carrier is lowered at the first idle position; a second idle position; and a post-process. The intermediate carrier is reciprocatable between the press positions and the first
When being moved from the idle position to the second idle position, the press work can be received from the intermediate carrier by moving from the post-process press position to the second idle position at the lowered position and rising at the second idle position, Furthermore, there is a loader carrier that can transport the press work to the post-process press by lowering at the post-process press position, and a drive device that drives the unloader carrier, intermediate carrier, and loader carrier via a plurality of coaxially arranged cams. The press work in the previous process is conveyed from the unloader carrier to the intermediate carrier and then to the loader carrier in this order, and is automatically supplied to the post process press.

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the conveyance device consists of an inner rail 2 and an outer rail installed horizontally on a base 12 constructed on a floor surface 1 between a pre-process press position A and a post-process press position D. 3, and for the inner rail 2, there is an unloader carrier 5 that can reciprocate and move up and down between the front press position A and the first idle position B by means of a link mechanism 4, and an unloader carrier 5 that can be moved up and down between the front press position A and the first idle position B by a link mechanism 6, and A loader carrier 7 that can reciprocate and move up and down between the press position D and the second idle position C is disposed, and the outer rail 3 is connected to the first idle position B by means of a steel belt 9 interlocked with a link mechanism 8. An intermediate carrier 10 that can reciprocate between the inner and outer rails 2 and 3 is disposed, and each link mechanism 4, 6, 8 has a cam mechanism 11 disposed at the longitudinal center position of the inner and outer rails 2, 3. The swing timing is controlled by

The unloader carrier 5 includes a truck 14 that reciprocates on the inner rail 2, a lifting platform 16 connected to the truck 14 via a lifting link 15, and a front finger 17 fixed to the front of the lifting platform 16. The control arm 18 of the link mechanism 4 is connected to the lifting platform 16.
By the swing control of the control arm 18,
The front finger 17 moves forward to the pre-process press position A, crawls under the press work W of the pre-process press FP, then lifts up the press work W, and further moves back to the second idle position B, At this position, the press work W is controlled to be lowered and placed on the intermediate carrier 10.

The loader carrier 7 includes a truck 19 that reciprocates on the inner rail 2, and a lifting link 20 attached to the truck 19.
Lifting platform 21 connected via
The control arm 23 of the link mechanism 6 is connected to the lifting platform 21, and the rear finger 22 is moved back to the second idle position C by the swing control of the control arm 23. crawl under the intermediate carrier 10, then lift up the press work W, move it to post-process press position D, descend at this position, and press the post-process press.
The press work W is controlled to be placed on the BP.

The intermediate carrier 10 has a truck 24 that reciprocates on the outer rail 3, and a loading platform 25 for press work W is provided on the upper part of the truck 24, while a first idle position B and a second idle position are located below the outer rail 3. A pair of large diameter drums 26 at a position corresponding to the idle position C,
26 is placed on the base 12 and a steel belt 9 is stretched thereon, and the steel belt 9 is connected to the above-mentioned truck 24 via a bracket 27, and a small diameter sprocket 28, which is coaxially integrated with each of the large diameter sprockets 26, 26, is installed. A chain 30 is stretched across the chain 28 via a tension cylinder 29, and a control arm 31 of the link mechanism 8 is connected to the chain 30. By controlling the swinging of the control arm 31, the chain 30 and the steel belt 9 are The intermediate carrier 10 is controlled to reciprocate between a first idle position B and a second idle position C.

The cam mechanism 11 includes a first cam 33, a second cam 34, and a third cam 3 that rotate in conjunction with a motor 32.
5. A fourth cam 36 and a fifth cam 37 are coaxially integrated.

Control arm 18 of the unloader carrier 5
The elevating arm 39 pivoted to the support pin 38 of the base 12, the reciprocating arm 40 and the connecting arm 41 constitute a quadrilateral link, and the cam roller 42 of the elevating arm 39 abuts the fourth cam 36, causing the reciprocating moving arm 4
The zero cam roller 43 is constantly pressed by the cylinder 44 and comes into contact with the first cam 33.

The control arm 23 of the loader carrier 7 includes a lifting arm 46 pivotally connected to a support pin 45 of the base 12;
The reciprocating arm 47 and the connecting arm 48 constitute a quadrilateral link, and the cam roller 49 of the lifting arm 46 contacts the second cam 34, and the cam roller 50 of the reciprocating arm 47 is constantly pressed by the cylinder 51 to contact the third cam. 35.

The cam roller 52 of the control arm 31 of the intermediate carrier 10 contacts the fifth cam 37.

The operation of the conveying device configured as described above is explained in the second section.
This will be explained with reference to the disassembly operation chart shown in the figure.

The first to fifth cams (cam mechanism) are driven by the motor 32.
33 to 37 rotate, first, the link mechanism 4 moves from the first idle position B to the pre-process press position A.
The front figure 17 of the unloader carrier 5 lifts up the press work W (see 2 in the same figure), and then crawls under the press work W of the pre-process press FP (1 in Figure 2). It moves back to the first idle position B (3 in the same figure), descends at this position and places the press work W on the intermediate carrier 10 at the first idle position B (4 in the same figure).

The unloader carrier 5 waits at this first idle position B for the next transport cycle.

The link mechanism 8 moves the intermediate carrier 10 from the first idle position B to the second idle position C (5 in the figure).

Next, the rear finger 22 of the loader carrier 7, which has been moved to the second idle position C by the link mechanism 6 and is descending under the press work W of the intermediate carrier 10, lifts the press work W and ascends. , (6 in the same figure), then move to the post-process press position D (7 in the same figure), descend at this position, and place the press work W on the post-process press BP.
(8 in the same figure).

The intermediate carrier 10 and the loader carrier 7 are moved to the first idle position B and the second idle position B before the next transport cycle.
Each returns to the idle position C and waits.

In the above embodiment, the movement stroke of the intermediate carrier 10 can be adjusted as desired since the feed amount of the chain 30 can be changed by changing the connection position to the endless chain 30 through the long groove 53 of the control arm 31.

As is clear from the above explanation, in this invention, the unloader carrier unloads the press work at the pre-process press position and transfers it to the intermediate carrier at the first idle position by driving the drive device. Since this is a device that delivers the press work to the loader carrier at the idle position, and transports the press work to the post-process press position by the loader carrier, it is essentially a 3-carrier, 1-idle type, replacing the conventional 3-carrier and 1-idle type.
Compared to the idle type, there are two fewer idle positions, reducing blank presses, improving production efficiency, improving setup, reducing equipment costs, and detecting defective workpieces that need to be reworked at an early stage. Wasteful processes will be reduced.

In addition, since the intermediate carrier independently reciprocates between the first idle position and the second idle position, the movement stroke can be set arbitrarily, and it can be applied to press equipment with a long interval between the front and rear presses. Out.

[Brief description of the drawings]

Figure 1 is a front view of the less work transport device, Figure 2
The figure is an exploded operational view of the apparatus of FIG. 1. 4, 6, 8...Link mechanism, 5...Unloader carrier, 7...Loader carrier, 10...Intermediate carrier, 11...Cam mechanism, 12...Base, 1
7...Front finger, 18, 23, 31...Control arm, 22...Rear finger, 32...Motor, 33-37...1st to 5th cam, A...Pre-process press position, B... ...First idle position, C...
Second idle position, D...post-process press position,
FP...Pre-process press, BP...Post-process press, W
...Press work.

Claims (1)

[Claims for Utility Model Registration] A press work transfer device having a first idle position and a second idle position between a pre-process press position and a post-process press position, the apparatus comprising: a pre-process press position and a post-process press position; an unloader carrier capable of reciprocating between positions, and capable of receiving press work by rising at a pre-process press position, and further capable of lowering at a first idle position; is capable of reciprocating between idle positions, and is moved from a second idle position to a first idle position when the unloader carrier moves from a pre-process press position to a first idle position in the raised position; an intermediate carrier capable of receiving press work from the unloader carrier by lowering the unloader carrier at the first idle position; and an intermediate carrier capable of reciprocating between the second idle position and the post-process press position; When the press work is being moved from the intermediate carrier to the second idle position, the press work can be received from the intermediate carrier by moving from the post-process press position to the second idle position in the lowered position and rising at the second idle position, and further A loader carrier that can transport a press work to a post-process press by descending at a post-process press position, and a drive device that drives the unloader carrier, intermediate carrier, and loader carrier via a plurality of coaxially arranged cams. A press work transfer device comprising: a press work in a pre-process is transferred from an unloader carrier to an intermediate carrier and a loader carrier in this order, and is automatically supplied to a post-process press.