JPH02142631A - Loading device for pressed parts - Google Patents

Abstract

PURPOSE:To improve and stabilize the efficiency of loading work by connecting plural moving bases with variable relative distances, reciprocating them in parallel between an unloading position and a loading position and rotating transfer pallets on the moving bases. CONSTITUTION:A pair of pressed parts 2a, 2b worked by a continuous press 1 is mounted on carrier palletes 16a, 16b. The interval between formed parts 2a, 2b at the unloading position P1 is narrow to reduce the width of the continuous press machine 1. While a traveling truck 18 moves to the loading position P2, a cylinder 30 operates to make the interval between the transfer pallets 16a, 16b correspond to the interval between loading pallets 6a, 6b. Since the formed parts 2a, 2b are piled up in two steps, upper and lower, the carrier pallets 16a, 16b are rotated 90 deg. during the carriage. A transfer means 4 loads the formed parts 2a, 2b on the loading pallets 6a, 6b. By this method, the working efficiency is improved and stabilized.

Description

Detailed Description of the Invention A0 Object of the Invention (1) Industrial Field of Application The present invention addresses the dispensing position where a plurality of press-molded parts are simultaneously dispensed in parallel from a press machine and each press-molded part individually. A loading conveyance means for conveying the press-formed parts is disposed between a loading position set to load each press-formed part onto a plurality of loading pallets waiting in parallel, and the loading position is The present invention relates to a loading device for press-formed parts, which is provided with a transfer means for transferring the press-formed parts from a loading conveyance means to a loading pallet.

(2) Prior art Conventionally, such devices have been disclosed in Japanese Patent Application Laid-open No. 61-22649, for example.
This method is known from Japanese Patent Application Laid-Open No. 62-83970 and the like.

(3) Problems to be Solved by the Invention However, in the conventional method described above, press-molded parts are discharged one by one from a press machine and loaded onto a loading pallet. In order to load molded parts onto multiple loading pallets, a loading device is required for each press-formed part. Therefore, the present applicant proposed a device in which a plurality of press-formed parts are conveyed in parallel and loaded onto a loading bar (Japanese Patent Application No. 62-320
No. 627). However, the molds used to form each press-molded part in a press machine are constructed with narrower intervals between the parts that form each press-molded part in order to downsize the press machine and improve the yield of materials. Therefore, multiple press-formed parts are delivered to the delivery position with narrow intervals between them, while the loading pallet for loading these press-formed parts avoids interference between the press-formed parts. A separator is provided to remove the press-formed parts, and a positioning pin is provided to improve the extraction accuracy in the next process. In addition, the loading position of press-formed parts onto the loading pallet is often different from the position when they are delivered from the press to the unloading position in order to improve loading efficiency. Press-formed parts are loaded onto a loading pallet while changing its posture using a transfer robot located at the same location. However, when a transfer robot is used to change the attitude of a press-formed part, the attitude is changed mid-air during loading, which is not only unstable, but also involves a lot of time loss.

The present invention has been made in view of the above circumstances, and it is possible to transport a plurality of press-formed parts by changing the distance between them at the unloading position and the loading position, and to change the posture during transport. The purpose is to provide a loading device for press-formed parts that makes it possible to

B0 Structure of the invention (1) Means for solving the problem The present invention provides a delivery position where a plurality of press-molded parts are simultaneously delivered from a press machine in parallel, and a parallel standby corresponding to each press-formed part individually. A loading conveyance means for conveying the press-formed parts is provided between a loading position set to load each press-formed part onto a plurality of loading pallets, and a loading conveyance means is provided at the loading position. In a press-formed parts loading device in which a transfer means for transferring press-formed parts onto a loading pallet is provided, the loading conveyance means are interconnected and arranged in parallel with variable intervals. Equipped with a plurality of moving tables that can reciprocate between the unloading position and the loading position, and transport pallets provided on each moving stage to individually place multiple types of press-formed parts, each transport pallet has a small ( One of them is characterized in that it is rotatable around a vertical axis and is provided on a movable table.

(2) Effects According to the above configuration, it is not only possible to simultaneously transport a plurality of press-formed parts while changing the mutual spacing at the unloading position and the mutual spacing at the loading position. It becomes possible to change the attitude of at least one press-formed part during its transportation.

(3) Example Hereinafter, an example of the present invention will be described with reference to the drawings. First, in FIGS. 1 and 2, a plurality of press-formed parts 2a, for example two pieces, are simultaneously press-formed in a continuous press l, 2b is the payout position P1 in parallel and at the same time.
, and is sequentially conveyed from this dispensing position P to a loading position P2 by the loading conveyance means 3. The press-formed parts 2a, 2b that have reached the loading position P2 are loaded by the transfer means 4 onto the loading pallets 6a, 6b that are waiting in parallel on the carry-out means 5, and are carried out by the carry-out means 5.

In the continuous press l, a plurality of processing stations S, , S, , -, ... are set at equal intervals along the conveyance direction 7, and the processing stations S, , S, , - .

. . . is a lower die 8an, Ban-+ + "', 8bn, 81) that works together to press a thin steel plate.
n-+... and upper mold 9an, 9an-+, -,
9bfi.

9bfi-+, . . . are arranged, respectively. Moreover, each upper mold 9aa, 9afi-+, '・, 9b,
, 9bn-+, .

The continuous press machine 1 includes a processing station SLl.

5n-1, . . . is provided with a conveying means 12 for sequentially conveying the thin steel plates. This conveyance means 12 includes a pair of transfer pars 13.23 arranged parallel to the conveyance direction 7 on both sides of the processing stations S, SR,...
, a plurality of arms 14 installed between both transfer pars 13 and 13, and each arm 1 for detachably holding the thin steel plate and press-formed parts 2a and 2b.
4 and a handling mechanism 15 provided at each.

This conveyance means 12 is a lower mold 8 an r 8 a
s−+・, 8 b, , 8 b,, , −・・
and upper mold 9a7゜9aa-+,"・,9h
a, 9k) During press working by a-1, -, the arm 14 and handling mechanism 15 are moved to each processing station S, , S□3. ...Wait in between, upper mold 9
a a + 9 a a-+ ,..., 9 bn
+ 9 bll-1+ . . . rises, the thin steel plates can be sequentially conveyed between adjacent processing stations S, S, . Further, the press-formed parts 2a and 2b press-formed at the processing station S at the forefront end along the conveyance direction 7 are processed at the processing station S.
Processing station S7 at the same interval as ,,S,,...
A payout position P set in front of.

Then, it is delivered by the conveying means 12.

The unloading means 5 extends in a direction perpendicular to the transporting direction 7 so as to cross a loading position P2 set at a front position of the continuous press machine 1 along the transporting direction 7, and extends between the unloading position P1 and the loading position. Position P2 is in the transport direction 7.
It is set on a straight line along.

Referring to FIGS. 3, 4, and 5, a loading conveyance means 3 is disposed between the unloading position P1 and the loading position 22, , on a rectangular frame 19 supported on the floor via support legs 20, a conveyance bar (16a) on which the press-formed part 2a can be placed, and a conveyance pallet 16b on which the press-formed part 2b can be placed. are arranged so that their mutual spacing is variable and they can be moved back and forth between the dispensing position P1 and the loading position 22.

A traveling truck 18 having wheels 17 that can be moved on both sides of the frame 19 is placed on the frame 19, and the pair of conveyor bars 16a and 16b are mutually moved on the traveling truck 18. They are arranged with variable spacing. Also, on both sides of the frame 19, there are drive sprockets 21 at the loading position P and the side drive sprockets 21.
and a pair of driven sprockets 22 on the + side of the payout position 1p are each supported by a pair of shafts. A drive shaft 25 connected to the shaft is connected to the redrive sprocket 21.21. Furthermore, chains 26 are wound between the re-driving sprocket 21 and both driven sprockets 22, respectively, and these chains 26, 26 are connected to the traveling carriage 18, respectively. Therefore, the traveling cart 18 is moved to the payout position P by the operation of the motor 24.

It is possible to reciprocate between the loading position and the loading position 22.

Moreover, a pair of stoppers 27 and 27 for regulating the movement of the traveling cart 18 are fixedly installed at the end of the frame 19 on the side of the payout position P1 and the end on the side of the loading position P2, respectively.

The traveling truck 18 has two pairs of guide rods 28a extending from both sides thereof toward the center in the width direction.

28a; 28b, 28b are fixed, and movable platforms 29a, 29b are movably supported on these guide rods 28a, 28a; 28b, 28b. Furthermore, cylinders 30 are supported and fixed at the lower part of the traveling carriage 18 at positions corresponding to the respective movable carriages 29a and 29b. These cylinders 30 are connected to each guide rod 28a, 28.
a; They are fixedly arranged at the bottom of both sides of the traveling carriage in parallel with 28b and 28b, and the piston rods 31 of these cylinders 30 are connected to the corresponding movable carriages 29a and 29b, respectively. Therefore, by telescopically operating each cylinder 30, it is possible to expand or contract the distance between the two types of movable bases 29a, 29b.

On each moving table 29a, 29b, each press-formed part 2a
, 2b individually S! transport baren) 16a for placing the
16b is supported so as to be rotatable about a vertical axis. That is, each transport pallet 16a, 16b is connected to a moving table 29a, 29b via a circular thrust bearing 32, respectively.
A rotation motor 3 is rotatably supported on the top and has a vertical axis and is disposed at the bottom of each moving platform 29a, 29b.
The output shaft of No. 3 is connected to six of the conveyor barrels (16a, 16b). Therefore, both transport pallets 16a.

16b can move toward and away from each other and can rotate around the vertical axis.

A support frame 41 is fixedly arranged at the loading position mPt,
The transfer means 4 is arranged on this support frame 41. That is, the transfer means 4 includes a pair of guide rails 42, 42 fixedly installed on the upper part of the support frame 41 so as to be parallel to the transport direction 7 and located above the loading transport means 3, and these guide rails 42. .42, and a horizontal support arm 44 that is suspended from the base body 43 and has an axis perpendicular to the conveyance direction 7 and extends to both sides of the support arm 44. a moving shaft 45; a pair of swinging arms 46, 46 that are swingably supported at positions spaced apart in the axial direction with the supporting arm 44 sandwiched between the horizontal moving shaft 45;
A pair of rotating shafts 47, 47 are rotatably supported at the tips of each swinging arm 46, 46 so as to extend in opposite directions while having axes parallel to the horizontal movement shaft 45, and press molded. A plurality of parts, for example 4, are used to detachably hold the parts 2a and 2b.
The rotary wheel 47 has individual suction cups 49, 49...
．． 47 and a finger 48.

A traveling motor 50 capable of forward and reverse rotation is attached to the base body 43 for traveling along the guide rails 42, 42, and a swinging motor 50 for swinging the swinging arm 46.46 is attached to one end of the horizontal movement shaft 45. A dynamic morph 51 is attached, and each swinging arm 46.4
A rotation motor 52.52 for rotationally driving the rotation shaft 47.47 is attached to the base end of the rotation shaft 47.47.

The unloading means 5 includes an unloading conveyor 56 and a plurality of pairs of loading barrels placed on the unloading conveyor 56) 6
a, 6b. The carry-out conveyor 56 is supported on a pedestal 57 fixed to the floor surface, and operates intermittently to sequentially feed the pair of loading pallets 6a and 6b to the loading position P2 while maintaining a constant interval between them. can.

The loading barrels 6a and 6b have the same configuration, and include a bottom plate 58, a side plate 59 which is formed in a substantially U-shape and stands upright so that the upper side and the loading conveyance means 3 side are open. A pair of support rods 6 are provided extending from the side plate 59 to the loading conveyance device 3 side at two locations vertically spaced apart.
0.60...

By the way, the press-formed parts 2a, 2b have through-holes, and each press-formed part 2a, 2b is in an upright position with a support rod 60 inserted through each through-hole, so that they are stacked in upper and lower stages to form loading pallets 6a, 6b. be loaded into.

Moreover, both loading barrels) 6a are located at the loading position P2.

6b is located, both loading pallets 6a, 6
The interval between the swinging arms 46, 46 in the transfer means 4 is set so that the adjacent portions of the side plates 59 of b are sandwiched between them.

Next, to explain the operation of this embodiment, a pair of press-formed parts 2a, 2 pressed by the continuous press machine 1.
b are simultaneously dispensed in parallel to the dispensing position P by the conveying means 12. At this time, both transport pallets 16a and 16b of the loading transport means 2 have an interval 16a corresponding to the interval between the press-formed parts 2a and 2b at the unloading position P.

16b, and each press-formed part 2a, 2b is placed on each transport pallet 15a, 15.
It is placed on b.

Moreover, in order to reduce the width of the continuous press machine 1, the press-formed parts 2a are
2b is press-molded, and each press-molded part 2a, 2
b is placed on the transport pallets 16a, 16b in the same posture.

The transport pallets 16a and 16b on which the press-formed parts 2a and 2b are placed, respectively, are moved from the unloading position P1 to the loading position P2 by the traveling of the traveling cart 18. Both transport pallets 16a.

16b are spaced apart from each other and are at the loading position P.

When this is reached, the distance between the two transport pallets 16a, 16b corresponds to the distance between the two loading pallets 6a, 6b waiting at the loading position P2. Moreover, the press-formed parts 2a are placed on the loading pallets 6a and 6b.
Since 2b is loaded in two stages, upper and lower, both press-formed parts 16a and 2b are rotated by 90 degrees during transportation, and at the loading position P2, both press-formed parts 2a and 2b are loaded as shown by the chain line in FIG. The position is rotated by 90 degrees.

When the pair of press-formed parts 2a, 2b are brought to the loading position P2 in this way, the transfer means 4 is activated, and both press-formed parts 2a, 2b are loaded onto the loading pallets 6a, 6b waiting at the loading position P2. be done. In other words, suck
Each transport pallet 16a, 16 due to the descent of 149...
Press molded parts 2a and 2b on b are suction cups 49...
, and is lifted from the transport pallets 16a and 16b. Next, both press-molded parts 2a and 2b are moved by moving the base body 43 toward the carrying-out means 5 side, moving the two I moving arms 4G,
46 and the rotational movement of the rotation shafts 47.47, each suction cup 49 is moved toward the loading bar 1-6a, 6b, and is inserted into the support rod 60 of the loading bar 6a, 6b. When the holding state is released, each of the press-formed parts 2a and 2b is suspended from the support rod 60, and each of the press-formed parts 2a and 2b is loaded onto the loading barres 6a and 6b.

During this loading, each loading barre) 6a,
A pair of swinging arms 46, 46 corresponding to 6b are provided, and a plurality of suction cups 49 are provided on these swinging arms 46, 46 via a rotation shaft 47 and a finger 48.
Each loading pallet 6a.

The side plate 59 of 6b does not interfere with the operation of the transfer means 4, so that the press-formed parts 2a, 2b can be efficiently loaded onto the loading barres 6a, 6b.

In this way, the press-formed part 2a at the dispensing position P,
, 2b and the distance between both loading pallets 6a and 6b at the loading position P2.
, 16b while changing the interval between the press-formed parts 2a and 2b between the unloading position P1 and the loading position 22, the transfer means 4 at the loading position P2
This can also contribute to simplifying the structure and operation of the system. Furthermore, since the transport pallets 16a, 16b are rotated during transport between the unloading position P1 and the loading position 22, each press-formed part 2a, 2
There is no need to perform the posture change (b), and the loading work can be carried out efficiently and stably.

In the above embodiment, there are two conveyor barres) 16a.

16b are made to rotate together, but the two types of press-formed parts 2a, 2b are placed on corresponding loading pallets 6a, 2b.
6b, in different postures, only one of the retransport barres 16a and 16b may be rotated.

C0 Effects of the Invention As described above, according to the present invention, the loading conveyance means includes a plurality of movable tables that are interconnected with variable intervals and can be moved back and forth between the dispensing position and the loading position in parallel. and a transport pallet provided on each moving platform to individually place a plurality of types of press-formed parts, at least one of each transporting pallet being rotatable around a vertical axis and mounted on the moving platform. Because of this, multiple press-formed parts can be transported between the unloading position and the loading position while changing their spacing, which not only simplifies the structure for transferring and receiving work during unloading and loading. Since at least one press-formed part is rotatable during transportation, it is not necessary to change the posture by the transfer means, and the efficiency and stability of the loading operation can be improved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view and a sectional view taken along line 1-f in FIG. 2, FIG. 2 is a cross-sectional plan view of FIG. 1, and FIG. Figure 1 is an enlarged view of the main parts, Figure 4 is the 3rd part.
5 is a sectional view taken along the line IV-rV in the figure, and FIG. 5 is a view taken along the V arrow in FIG. 3. DESCRIPTION OF SYMBOLS 1... Continuous press machine, 2a, 2b... Press molded parts, 3... Loading conveyance means, 4... Transfer means, 6
a. 6b... Loading pallet, 7... Conveyance direction, 16a
. 16b...Transportation barret, 29a, 29b...Movement platform, Pl...Dispensing position, P...Loading position Applicant: Honda Motor Co., Ltd. Representative Patent Attorney Kendo Ochiai 1) Medium Takashi Hide

Claims (1)

[Claims] A discharge position where multiple press-formed parts are simultaneously discharged from the press machine in parallel, and a loading position where each press-formed part is loaded onto multiple loading pallets that are waiting in parallel for each press-formed part individually. A loading conveyance means for conveying the press-formed parts is disposed between the loading position and a transfer means for transferring the press-formed parts from the loading conveyance means to the loading pallet. In the press-formed parts loading device provided, the loading conveyance means includes a plurality of movable tables that are mutually connected with variable intervals and that can reciprocate between a dispensing position and a loading position in parallel; and a transport pallet provided on each moving platform to individually place different types of press-formed parts, at least one of each transport pallet
A loading device for press-formed parts, characterized in that it is rotatable around a vertical axis and is installed on a movable table.