JPS63171230A - Transferring device for press-formed parts - Google Patents

Abstract

PURPOSE:To perform the high speed transfer of press-formed parts between a press machine and a carrying-out device by interlocking and connecting pallets so that a pallet is in a clearing or an interchanging position and the other pallet is concurrently in the interchanging or a loading position. CONSTITUTION:A formed part 2 formed by a press machine 1 is carried onto a carrying-out device 4 through a clearing position P1, an interchanging position P2, and a loading position P3. Pallets 15, 16 transferring the part 2 are integrally connected with a connecting member 17 and interlock to each other. When the pallet 15 is in the clearing position P1 or the interchanging position P2, the other pallet 16 concurently interlocks, reciprocates, and moves to the position P2 or the position P3, so that the high speed and efficient transfer of the part 2 from the position P1 to the position P3 is performable.

Description

Detailed Description of the Invention A0 Object of the Invention (1) Industrial Application Field The present invention is provided between a press machine and a carry-out device for carrying out press-molded parts formed by the press machine. The present invention relates to a conveying device for press-formed parts.

(2) Prior Art Conventionally, in such devices, press-formed parts are transported by connecting a press machine and a delivery device with a transport means such as a chain conveyor.

(3) Problems to be Solved by the Invention However, as the processing speed of press machines increases, there is a limit to the high-speed conveyance of conveyance means such as chain conveyors. It also becomes difficult to stop the position.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a conveying device for press-formed parts that has a simple structure and is capable of conveying press-formed parts at high speed between a press machine and a delivery device. do.

B1 Structure of the Invention (1) Means for Solving the Problems According to the present invention of cylinder 1, there is a dispensing position where the press-molded parts are dispensed from the press machine, and a loading position for loading the press-molded parts into the discharging device. position and a transshipment position in the center between the unloading position and the loading position, such that when one pallet is at the unloading position or the loading position, the other pallet is at the unloading position or the loading position. A pair of pallets are interlocked and connected, and a lifting means is provided at the loading/unloading position to removably hold the press-formed parts on the pallets and to lift and lower them.

According to the second invention, in addition to the configuration of the first invention, the loading position includes a movable body movable along a guide rail extending from the loading position to the unloading device side, and a guide. A rotating arm that is rotatable around an axis perpendicular to the longitudinal direction of the rail and whose base end is supported by a movable body, and a rotating arm that removably holds a press-formed part and that is parallel to the rotating wheel line of the rotating arm. A transfer means is provided, which includes a finger rotatable about an axis and supported at the tip of the rotary arm.

(2) Effect According to the configuration of the first aspect of the invention, when press-molded parts are discharged from the press machine, one pallet is at the discharge position, and the press-molded parts are placed on one pallet! ! placed. One of the pallets is then moved to the transshipment position,
At the transfer position, the press-formed parts are lifted up by the lifting means. In this state, when one pallet moves to the unloading position and the other pallet moves to the transfer position, the press-formed parts are placed on the other pallet by the lifting means. Then, one pallet carrying press-formed parts is moved to the transfer position, and the other pallet is moved to the loading position. In this way, both pallets reciprocate over relatively short distances between the unloading position and the reloading position, as well as between the reloading position and the loading position, allowing the press-formed parts to be moved quickly and efficiently from the unloading position to the loading position. transportation becomes possible.

According to the configuration of the second invention, in addition to the effect of the first invention, at the transfer position, the press-formed parts are transferred from the loading position to the unloading device by the reciprocating movement of the movable body in the transfer means. At the same time, the posture of the press-formed part is changed by the rotational movement of the finger and the rotation arm, and the press-formed part is efficiently loaded into the unloading device.

(3) Example Hereinafter, an example of the present invention will be explained with reference to the drawings.First, in FIGS.
from the dispensing position P1 to the loading position P3 via the reloading position P2. Loading position P
The press-formed parts 2 that have reached 3 are loaded onto the unloading device 4 and unloaded by the robot 3 as a transfer means.
Some of the press-formed parts 2 are taken out from the loading position P3 to the conveyor 5 for sampling inspection.

In the continuous press machine 1, a plurality of processing stations Sa and Sb are set at equal intervals along the conveying direction 6 of the plate material 2', and each processing station Sa.

Lower dies 7a, 7b and upper dies 8a, 8b for working together to press the plate material 2' are disposed on sb, respectively. Each of the upper molds 8a and 8b is fixed to a lifting platform IO that is supported by a support frame 9 so as to be able to rise and fall.

This continuous press machine 1 is provided with a conveying means 11 for sequentially conveying the plate material 2' to processing stations Sa and Sb. The conveying means 11 includes each processing station Sa,
A pair of transfer pars 12 arranged parallel to the conveyance direction 6 on both sides of Sb, a plurality of arms 13 installed between both transfer pars 12, a plate material 2' and a press-formed part 2 are removably held. A handling mechanism 14 provided on each arm 13 is provided for this purpose.

This conveying means 11 includes lower molds 7a, 7b and upper mold 8a.
, 8b, the arm 13 and the handling mechanism 14 are kept on standby between the stations Sa and Sb, and when the upper molds 8a and 8b are raised, the adjacent processing S
The spanning board material 2' can be sequentially conveyed between a and Sb. Further, the press-formed parts 2 press-formed at the processing station sb at the forefront end along the conveyance direction 6 are placed at a payout position P1 set in front of the processing station sb at the same interval as between the processing stations Sa and Sb. Transport means 11
paid out by.

The unloading device 4 extends in a direction orthogonal to the conveying direction 6 at a position in front of the continuous press 1 along the conveying direction 6, and is located at a side position close to the unloading device 4 on the continuous press 1 side. The loading position P3 is set. The payout position P1 and the loading position P3 are set on a straight line along the conveyance direction 6, and the payout position PI and the loading position P3 are set on a straight line along the conveyance direction 6.
A transshipment position P2 is set in the center between 3 and 3.

The first pallet 15 is movable between the unloading position IPI and the reloading position 22 with the press molded parts 2 'R placed thereon, and the first pallet 15 is movable between the reloading position P2 and the loading position 23 with the press molded parts 2 placed thereon. 16 are integrally connected by a connecting member 17 so as to interlock with each other. These pallets 15 and 16 are formed so as to be able to place a pair of press-molded parts 2 in parallel in response to the pair of press-molded parts 2 being delivered in parallel from the continuous press 1.

The connecting member 17 is connected to the dispensing position P1 and the reloading position 22.
The conveyor 18 is connected to a conveyor 18 which is capable of reciprocating movement with both ends disposed between the transfer position P2 and the loading position 23, and the conveyor 18 is supported by a box-shaped frame 19 with an open top. This frame 19 is supported on the floor via supports 1120, and the height of each pallet 15, 16 is set at the same level as the lower molds 7a, 7b in the continuous press 1. A conveyor 18 is installed at the bottom of the frame 19.
A motor 21 that is connected to and capable of forward and reverse rotation is accommodated and fixed.

By reciprocating the conveyor 18, both pallets) 1
5.16 move back and forth in conjunction with each other, and when the first pallet 15 is at the unloading position IPI, the second pallet 16 is at the transshipment position P2, and when the first pallet 15 is at the transshipment position P2, the second pallet 16 is at the transshipment position P2. pallet) 16 is loading position P3
It is in.

A support frame 22 is disposed at the loading position P3, and an arm 23 extending from the support frame 22 is positioned above the first pallet 15 or the second pallet 16 at the transfer position P2. A lifting means 24 is provided at the tip.

The elevating means 24 includes an elevating cylinder 25 that has a vertical axis and is fixed and supported at the tip of the arm 23, and the elevating cylinder 2.
5, and a plurality of suction cups 27 provided on the elevating body 26 to detachably hold the press-formed part 2.

According to this elevating means 24, the press-formed parts 2 are lifted from the top of the first pallet 15 that has been moved from the unloading position pt to the transshipment position P2, and are moved from the loading position P3 to the transshipment position P2 in an empty state. The second pallet 1 that has moved
The press-formed part 2 can be lowered and placed on the 6.

A sampling inspection conveyor 5 is disposed below the second pallet 16 at the loading position P3 so as to extend in a direction perpendicular to the conveying direction 6.

Referring to FIGS. 3 and 4 together, a pair of guide rails 28 extending parallel to the conveying direction 6 are fixed to the upper part of the support frame 22, and reciprocating movement along these guide rails 28 is shown. The robot 3 is arranged to enable this.

The robot 3 includes a movable body 29 movable along a pair of guide rails 2B, and a support 11 hanging from the movable body 29.
*Rotating arm 31 whose base end is rotatably supported by 30
and a finger 32 rotatably supported at the tip of a rotary arm 31 to detachably hold the press-formed part 2.

A base end of a rotating arm 31 is supported at the lower end of the support section 30 via a horizontal first rotating shaft 33 perpendicular to the conveying direction 6, and a first rotating shaft 33 is supported at the tip of the rotating arm 31. A second rotation shaft 34 extending parallel to both sides of the rotation arm 31 is rotatably supported.

Fingers 32 are provided at both axial ends of the second rotating shaft 34, and each finger 32 is provided with a plurality of suction cups 35 for detachably holding the press-formed part 2.

The movable body 29 is provided with a driving motor 36 capable of forward and backward rotation for traveling along the guide rail 28, and a forward and reverseable driving motor 36 for rotationally driving the rotating arm 31 is attached to the lower end of the support portion 30. A rotating motor 37 is attached. A lever 38 extending upward is provided at the longitudinally intermediate portion of the second rotation shaft 34.
is fixedly installed, and one end of a drive rod 39 is connected to the tip of the lever 38, which is movable back and forth in the longitudinal direction above the rotating arm 31 and extends toward the proximal end of the rotating arm 31. Also, a drive rod 39 is provided at the base end of the rotating arm 310.
A rod driving motor 40 connected to the other end is provided. The rod drive motor 40 can reciprocate the drive rod 39 in its longitudinal direction, and the posture of the press-formed part 2 held by the fingers 32 changes accordingly. That is, when the drive rod 39 is displaced toward the proximal end of the rotating arm 31 while the fingers 32 hold the press-formed part 2 in a horizontal position, the press-formed part 2 moves along the chain double-dashed line in FIG. As shown in , the posture changes from a horizontal posture to a tilted posture, and then from a tilted posture to a vertical posture.

The robot 3 functions to load the press-formed parts 2 that have been transported to the loading position P3 onto the unloading device 4 and to lower them onto the conveyor 5 for sampling inspection. 40 operates according to a preset program.

The carry-out device 4 includes a carry-out conveyor 41 and a plurality of carry-out pallets 42 placed on the carry-out conveyor 41.

The carry-out conveyor 41 extends in a direction perpendicular to the conveyance direction 6, that is, in a direction parallel to the sampling inspection conveyor 5, and is supported on a pedestal 43 fixed to the floor surface.

This carry-out conveyor 41 is constantly driven in the carry-out direction 44 during operation.

In FIG. 5, the unloading pallet 42 has a bottom plate 45, a side plate 46 erected at right angles to one end of the bottom plate 45, and a side plate 46 arranged horizontally above the bottom plate 45 (fixed to the top of the side plate 46). The press-formed part 2 is provided with a plurality of support rods 47, and the interval between the bottom plate 45 and the support rods 47 is set in a vertical position.
is determined to such an extent that it can be inserted between the bottom plate 45 and the support rod 47.

A mat 49 having numerous trichomes 48 is adhered to the upper surface of the bottom plate 45 . The mat 49 is made of a flexible material such as rubber or synthetic resin, and therefore the trichomes 48 are also flexible. Moreover, the amount of protrusion of each trichome 48 is relatively short (set).

The support rod 47 is covered with a sheathing tube 50 made of a flexible material such as rubber or synthetic resin, and the outer peripheral surface of the sheathing tube 50 is provided with numerous hair-like protrusions with a relatively large protrusion. 51 are integrally protruded radially.

Further, an engagement hook 52 is fixed to the upper part of the side plate 47, and the engagement hook 52 makes it possible to lift the carry-out pallet 42 from the carry-out conveyor 41 or to suspend it onto the carry-out conveyor 41.

In such a carry-out pallet 42, the press-formed parts 2 are inserted and removed from between the tip of the support rod 47 and the bottom plate 45, and an empty carry-out pallet 42 that does not contain any press-formed parts 2 is moved in the carry-out direction 44. Loading position P3 along
It is placed on the carry-out conveyor 41 on the rear side, with the tip of the support rod 47 facing the loading position P3. However, at a position corresponding to the loading position P3, a pair of unloading pallets 42
A positioning stopper 53 that can engage with the unloading pallet 42 at its front end along the unloading direction 44 in order to determine the position of the pallet is disposed so as to be movable between an engaging position and a disengaging position. Further, a cylinder 54 for lifting and fixing the carry-out pallet 42 from the carry-out conveyor 41 when movement is restricted by the positioning stopper 53 is supported and fixed to the pedestal 43.

Furthermore, when a pair of unloading pallets 42 are positioned and fixed at the rear side along the unloading direction 44 than the loading position P3 in correspondence with the loading position P3, the subsequent unloading pallets 42 are moved as the unloading conveyor 41 runs. In order to avoid collisions during running, the positioning stopper 53 and the cylinder 54 are arranged at intervals along the unloading direction 44.

Next, to explain the operation of this embodiment, the plate material 2
' is sequentially pressed at each processing station Sa, Sb of the continuous press machine 1, and the pair of press-formed parts 2 after being processed at the last processing station sb are transferred to the conveying means 11.
are dispensed in parallel to the dispensing position P1.

At this time, the empty first pallet 15 is waiting at the delivery position P1, and the pair of press-molded parts 2 delivered by the conveyance means 11 are dumped onto the first pallet 15. The first pallet (15) on which the press-formed part 2 is placed is located at the delivery position PI.
At this transfer position P2, the press-formed parts 2 are lifted from above the first pallet 1-15 by the lifting means 24.
returns to the unloading position PI to receive the next press-molded part 2, and accordingly the second pallet 16 moves to the transfer position P2.

When the second pallet 16 moves to the transshipment point IP2,
The elevating means 24 moves downward and places the press-formed part 2 that has been lifted onto the second pallet 16. That is, the press-formed parts 2 are transferred from the first pallet 15 to the second pallet 16 at the transfer position P2.

The second pallet 1-16 carrying the press-formed parts 2 moves from the transfer position P2 to the loading position P3, but at this time, the second pallet 1-16 carrying the newly discharged press-formed parts 2 moves
The pallet 15 moves from the delivery position P1 to the transfer position P2.

On the other hand, in the unloading device 4, the pair of unloading pallets 42 whose movement is restricted by the positioning stopper 53 are lifted by the cylinder 54, so that they are placed in parallel at the position corresponding to the loading position P3 regardless of the movement of the unloading conveyor 41. It is positioned and fixed, and each subsequent carrying out pallet 42 is also positioned and fixed in the same manner.

The robot 3 operates with the pair of unloading pallets 42 fixed and positioned corresponding to the loading position P1, and the press-formed parts 2 on the second pallet 16 are sucked by the suction cups 35 of the fingers 32. Along with being retained,
It is lifted from the second pallet 16 in accordance with the rotation of the rotation arm 31.

Therefore, when the second pallet 16 moves from the loading position P3 to the transfer position P2, no press-formed parts 2 are placed on the second pallet 16.

The press-formed part 2 lifted from the second pallet 16 changes its posture from a horizontal position to an inclined position according to the rotation of the finger 32, and the robot 3 moves along the guide rail 2 to the unloading pallet 42 side. . As a result, the press-formed parts 2 remain in the inclined position and are placed at the bottom Fi of the unloading pallet 42.
45 and the support rod 47, and thus the press-molded part 2 is inserted without contacting the trichomes 48.51.

When the press-formed part 2 is inserted to a predetermined position between the support rod 47 and the bottom plate 45, the fingers 32 further rotate, and the press-formed part 2 assumes a vertical posture. In response to this posture change to the vertical posture, the edge of the press-formed part 2 engages between the trichomes 51 on the support rod 47 side, and the edge of the press-formed part 2 also engages with the trichomes 48 of the bottom plate 45. The edges engage. As a result, the lower edge of the press-formed part 2 in a vertical position engages with the trichomes 48 to prevent slippage, and the upper edge engages with the trichomes 51 to maintain a stable vertical position. drooping

By repeating such a procedure, a plurality of press-formed parts 2 are sequentially loaded in a vertical posture with intervals between them on the unloading pallet 42 located at a position corresponding to the loading position P3. Moreover, since the vertical posture of each press-formed part 2 is stably maintained, the press-formed parts 2 will not come into contact with each other and be damaged.

When a predetermined amount of press-formed parts 2 are loaded onto the carry-out pallet 42, the engagement with the positioning stopper 53 is released, and the cylinder 54 is activated to lower the carry-out pallet 42 onto the carry-out conveyor 41. As a result, as the carry-out conveyor 41 travels, the carry-out pallet 42 loaded with the press-formed parts 2 is carried out, and the empty carry-out pallet 42 is brought to a position corresponding to the loading position P3.

By the way, when performing a sampling inspection of some press-formed parts 2, the press-formed parts 2 lifted by the robot 3 from above the second pallet 16 at the loading position P3 are placed on the second pallet) 16.
When it moves from the loading position WP3 to the transfer position P2, it is lowered onto the sampling inspection conveyor 5. Then, as the sampling inspection conveyor 5 travels, the press-formed parts 2 are extracted outward from the loading position P3.

C1 Effects of the Invention As described above, according to the first invention, there are a dispensing position where the press-molded parts are dispensed from the press machine, a loading position where the press-molded parts are loaded into the discharging device, and the dispensing position and the dispensing position. A central transshipment position between the loading positions is set, and the pair of pallets are interlocked so that when one pallet is at the unloading position or the transshipment position, the other pallet is at the transshipment position or the loading position. and a lifting means is provided at the transfer position that can detachably hold the press-formed parts on the pallet and raise and lower the parts. With a relatively simple configuration in which both pallets reciprocate over a short distance, press-formed parts can be transported quickly and efficiently from the unloading position to the loading position.

According to the second invention, in addition to the configuration of the first invention, the loading position includes a movable body movable along a guide rail extending from the loading position to the unloading device side, and a guide rail. a rotating arm that is rotatable around a horizontal axis perpendicular to the longitudinal direction and whose base end is supported on a movable body; Since the transfer means is provided with a finger that is rotatable around the axis and supported on the tip of the rotary arm, in addition to achieving the effects of the first invention, the loader can be transported to the loading position. It becomes possible to efficiently transfer the incoming press-formed parts to the unloading device while changing their posture.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall longitudinal sectional side view, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a view of the first embodiment.
An enlarged vertical sectional side view of the main part of the figure, Figure 4 is IV-IV of Figure 3.
A line sectional view, and FIG. 5 is a partially enlarged longitudinal sectional side view of the delivery pallet. l...Press machine, 2...Press molded parts, 3...
Robot as transfer means, 4... unloading device, 15.
16... Pallet, 24... Lifting means, 28...
Guide rail, 29... Moving body, 31... Rotating arm, 32... Finger, 42... Carrying out pallet PL... Unloading position, P2... Transferring position, P3.
・Loading position

Claims (3)

[Claims] (1) In a press-formed parts conveyance device provided between a press machine and a discharge device for transporting press-formed parts formed by the press machine, a delivery position where the press-formed parts are delivered from the press machine. , a loading position for loading the press-formed parts into the unloading device, and a reloading position in the center between the unloading position and the loading position,
A pair of pallets are interlocked and connected so that when one pallet is in the unloading position or the transshipment position, the other pallet is in the transshipment or loading position, and the press-formed parts on the pallet are in the transshipment position. 1. A conveyance device for press-formed parts, characterized in that an elevating means that can be moved up and down while removably holding the press-formed parts is provided. (2) In a conveying device for press-formed parts provided between a press machine and a discharge device for transporting press-formed parts formed by the press machine, a discharge position where the press-formed parts are discharged from the press machine. , a loading position for loading the press-formed parts into the unloading device, and a reloading position in the center between the unloading position and the loading position,
A pair of pallets are interlocked and connected so that when one pallet is in the unloading position or the transshipment position, the other pallet is in the transshipment or loading position, and the press-formed parts on the pallet are in the transshipment position. At the loading position, there is a moving body movable along a guide rail extending from the loading position to the unloading device side, and a moving body that can be moved in the longitudinal direction of the guide rail. a rotating arm that is rotatable around a horizontal axis perpendicular to the horizontal axis and whose base end is supported by a movable body; 1. A transfer device for press-formed parts, characterized in that a transfer device is provided with a finger that is rotatable and supported at the tip of a rotating arm. (3) The press-formed parts conveying device according to claim (2), wherein the unloading device includes a plurality of unloading pallets that are movable along the unloading direction.