JP2531977B2 - Loading device for press-formed parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of Industrial Application The present invention is directed to a press position at which a plurality of press-formed parts are simultaneously delivered in parallel from a press machine and the press-formed parts are individually provided. Correspondingly, a loading transport means for transporting the press-molded parts is arranged between the loading positions set to load the respective press-molded parts on a plurality of loading pallets that are waiting in parallel, and at the loading position. Relates to a device for loading a press-molded component, which is provided with a transfer unit for transferring the press-molded component from the loading transport unit to the loading pallet.

(2) Conventional Technology Conventionally, such a device is known from, for example, JP-A-61-226499 and JP-A-62-83970.

(3) Problems to be Solved by the Invention However, in the above-mentioned conventional one, press-formed parts that are delivered one by one from a press machine are loaded on a loading pallet, and a plurality of presses that are simultaneously delivered from the press machine are delivered. In order to load the molded parts on the plurality of loading pallets, a loading device is required for each press-molded part. Therefore, the present applicant proposed a device in which a plurality of press-formed parts are conveyed in parallel and loaded on a loading pallet (Japanese Patent Application No. 62-320627). However, the die for forming each press-formed part in the press machine is configured by narrowing the interval between the parts forming each press-formed part in order to downsize the press machine and improve the yield of the material. Cage,
Therefore, while a plurality of press-formed parts are delivered to the delivery position with a small interval between them, the loading pallet for loading those press-formed parts is designed to avoid mutual interference of the press-formed parts. Since a separator is provided in or a positioning pin is provided to improve the take-out accuracy in the next process, wait a gap larger than the gap between the press-formed parts at the payout position. I have no choice. Furthermore, the loading posture of the press-formed parts on the loading pallet often changes from the posture when the press is delivered to the delivery position in order to improve the loading efficiency. Press-formed parts are loaded on a loading pallet while changing the posture. However, when the posture of the press-molded parts is changed by the transfer robot, the posture is changed in the air during loading, which is not only unstable, but also causes a lot of time loss.

The present invention has been made in view of such circumstances,
(EN) Provided is a device for loading a press-molded component, which makes it possible to convey a plurality of press-molded components by changing the interval between the delivery position and the loading position and to change the posture during the transportation. The purpose is to

B. Structure of the Invention (1) Means for Solving the Problems The present invention is a standby position in which a plurality of press-molded parts are simultaneously discharged in parallel from a press machine in a payout position and the press-molded parts are individually addressed in parallel. A loading transport means for transporting the press-molded parts is arranged between the plurality of loading pallets for loading the press-molded parts on the loading pallet, and the loading transport means is provided at the loading position. In the apparatus for loading a press-molded component in which transfer means for transferring the press-molded component from the loading pallet to the loading pallet is arranged, the loading transporting means are connected to each other at variable intervals and arranged in parallel. Multiple transfer bases that can reciprocate between the delivery position and the loading position, and a transfer pallet that is provided on each transfer base to individually mount multiple types of press-formed parts. The wherein at least one of the transport pallet is characterized in that provided on the moving stand and rotatable about a vertical axis.

(2) Operation According to the above configuration, not only it becomes possible to simultaneously convey a plurality of press-formed parts while changing the distance between the dispensing positions and the distance between the loading positions, but also It is possible to change the posture of at least one press-formed part during the transportation.

(3) Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, in FIG. 1 and FIG.
In plurality example two by press-forming parts 2a which are press-formed simultaneously, 2b is parallel with the dispensing simultaneously dispensing position P _1, the conveying means 3 for loading to a position P ₂ loading from the payout position P ₁ Sequentially transported. The press-formed parts 2a, 2b that have reached the loading position P ₂ are loaded by the transfer means 4 on the loading pallets 6a, 6b that are waiting in parallel on the unloading means 5, and are unloaded by the unloading means 5. .

In the continuous press machine 1, a plurality of processing stations S _n , S _n-1 , ... Are set at equal intervals along the transport direction 7, and the processing stations S _n , S _n-1 ,. Lower die 8a _n , 8a _n-1 , ,, 8b _n , 8b _n-1 ,, ... and upper die 9a _n , 9a _n-1 , ..., 9b _n , 9b _{n- 1} , ... Are arranged respectively. Moreover, each of the upper molds 9a _n , 9a _n-1 , ..., 9b _n , 9b _n-1 , ... Is fixed to a lift base 11 supported by a support base 10 so as to be lifted and lowered.

The continuous press machine 1 is provided with a conveying means 12 for sequentially conveying thin steel plates among the processing stations S _n , S _n-1 ,. The transfer means 12 includes a pair of transfer bars 13 and 13 arranged on both sides of the processing stations S _n , S _n-1 , ... In parallel with the transfer direction 7, and a plurality of transfer bars 13 installed between the transfer bars 13 and 13. Arm 14 and each arm 1 for detachably holding the thin steel plate and press-formed parts 2a, 2b.
4 and a handling mechanism 15 provided respectively.

The transfer means 12 includes lower molds 8a _n , 8a _n-1 , ..., 8b _n , 8b _n-1 ,
... and the upper mold 9a _n , 9a _n-1 ,, ..., 9b _n , 9b _n-1 ,, ... During the press working, the arm 14 and the handling mechanism 15 stand by between the working stations S _n , S _n-1 , ... Seise, upper mold 9a _n , 9a
_{When the n−1} , ..., 9b _n , 9b _n−1 , ... Ascend, the thin steel plates can be sequentially conveyed between the adjacent processing stations S _n , S _n−1 ,. Also, press-formed parts 2a, 2b press-formed at the frontmost processing station S _n along the conveyance direction 7.
Are delivered to the delivery position P ₁ set in front of the processing station S _n at the same intervals as the processing stations S _n , S _n-1 , ...

The carry-out means 5 is a continuous press machine 1 along the carrying direction 7.
Is extended in a direction orthogonal to the transport direction 7 so as to cross the loading position P ₂ set at the front position of the loading position P ₁ and the loading position P ₂ on a straight line along the transport direction 7. Is set to.

Referring also to FIG. 3, FIG. 4 and FIG. 5, loading transport means 3 is disposed between the delivery position P ₁ and the loading position P ₂ , and the loading transport means 3 is provided.
Is a rectangular frame body 19 supported on the floor via the support legs 20.
The transfer pallet 16a on which the press-formed part 2a can be placed
And a transfer pallet 16b on which the press-formed component 2b can be placed are arranged such that their mutual intervals can be varied and reciprocal movement between the delivery position P ₁ and the loading position P ₂ is possible.

On the frame body 19, a traveling carriage 18 having wheels 17 capable of rolling on both side portions of the frame body 19 is placed, and the pair of transfer pallets 16a, 16b are mutually mounted on the traveling carriage 18. Are arranged with variable intervals. A pair of drive sprockets 21 on the loading position P ₂ side and driven sprockets 22 on the payout position P ₁ side are respectively pivotally supported on both sides of the frame body 19, and provided on the lower portion of the frame body 19. A drive shaft connected to the output shaft of a motor 24 that is fixedly arranged on the support plate 23 and is capable of forward and reverse rotation
25 is connected to both drive sprockets 21, 21. Moreover, chains 26 are respectively wound around both the drive sprockets 21 and the driven sprockets 22, and the chains 26, 26 are connected to the traveling carriage 18, respectively. Therefore, by the operation of the motor 24, the traveling carriage 18 can reciprocate between the delivery position P ₁ and the loading position P ₂ . Moreover, the frame
A pair of stoppers 27, 27 for restricting the movement of the traveling carriage 18 are fixedly provided at the end on the side of the delivery position P _{1 and} the end on the side of the loading position P ₂ in 19, respectively.

Two pairs of guide rods 28a, 28a; 28b, 28b extending from the both sides toward the center in the width direction are fixed to the traveling carriage 18, and the guide rods 28a, 28a; 28b, 28b move to these guide rods 28a, 28a; 28b, 28b. The movable bases 29a and 29b are freely supported. In addition, a cylinder 30 is supported and fixed to a lower portion of the traveling carriage 18 at positions corresponding to the moving bases 29a and 29b, respectively. These cylinders 30 are fixedly arranged at the lower portions on both sides of the traveling carriage 18 in parallel with the guide rods 28a, 28a; 28b, 28b, and the piston rods 31 of the cylinders 30 correspond to the movable bases.
29a and 29b are respectively connected. Therefore each cylinder 3
By causing 0 to expand and contract, it is possible to expand or contract the interval between the two movable tables 29a and 29b.

Transfer pallets 16a, 16b for individually mounting the press-molded parts 2a, 2b are supported on the movable tables 29a, 29b so as to be rotatable about the vertical axis. That is, each of the transfer pallets 16a, 16b is rotatably supported on the movable bases 29a, 29b via circular thrust bearings 32, and has a vertical axis and is arranged below the movable bases 29a, 29b. The output shaft of the rotation motor 33 provided is connected to the center of the transfer pallets 16a, 16b. Therefore, both transfer pallets 16a, 16b
They can approach and separate from each other, and can rotate about the vertical axis.

A support frame 41 is fixedly arranged at the loading position P ₂ , and the transfer means 4 is arranged on this support frame 41. That is, the transfer means 4 is provided with a pair of guide rails 42, 42 fixed to the upper part of the support frame 41 so as to be positioned above the loading transfer means 3 in parallel with the transfer direction 7, and these guide rails 42. , 42 supported reciprocally on the bases 43, and a horizontal extending on both sides of the support arm 4 while having an axis line orthogonal to the transport direction 7 at the lower end of the support arm 44 suspended from the base 43. Axis of movement
45, a pair of swing arms 46, 46 supported swingably at positions spaced in the axial direction such that the support arm 44 is sandwiched by the horizontal movement shaft 45, and the tip ends of the swing arms 46, 46. A pair of rotating shafts 47, 47, which are rotatably supported so as to extend in mutually opposite directions while having an axis parallel to the horizontal moving shaft 45, and press-formed parts 2a, 2b are detachably held. Multiple, for example 4
... and fingers 48, 48 that have detachable suction cups 49, 49 ... And are detachably attached to the rotary shafts 47, 47.

A forward / reverse traveling motor 50 for traveling along the guide rails 42, 42 is attached to the base body 43, and a horizontal movement shaft is provided.
A swinging motor 51 for swinging the swinging arms 46, 46 is attached to one end of the swinging arm 45, and swinging shafts 47, 47 are swingably driven at the base ends of the swinging arms 46, 46. Rotating motors 52, 52 are provided for this purpose.

The carry-out means 5 includes a carry-out conveyor 56 and the carry-out conveyor.
Multiple loading pallets 6a, 6 placed one by one on 56
b and. The carry-out conveyor 56 is a pedestal 5 fixed to the floor.
It is supported on 7 and can be intermittently operated to sequentially feed the pair of loading pallets 6a, 6b to the loading position P ₂ while keeping the interval between them constant.

The loading pallets 6a and 6b have the same structure, and include a bottom plate 58, a side plate 59 that is vertically installed while being formed in a substantially U shape so that the upper side and the loading transporting means 3 side are opened, and the upper and lower sides. .. and support rods 60, 60 ... Extending from the side plate 59 to the loading transfer device 3 side one by one at two positions spaced apart from each other.

By the way, the press-molded parts 2a and 2b have through holes, and the press-molded parts 2a and 2b are vertically arranged so that the support bar 60 is inserted into each through-hole in an upright posture to form a two-tiered stacking pallet 6a, 6b. Be loaded into.

Moreover, in a state where both loading pallets 6a, 6b are located at the loading position P ₂ , both swinging arms 46 of the transfer means 4 are arranged so that the adjacent portions of the side plates 59 of both loading pallets 6a, 6b are sandwiched between them. , 46 is set.

Next, the operation of this embodiment will be described. A pair of press-formed parts 2a, 2b pressed by the continuous press 1 is described.
Are simultaneously dispensed to the dispensing position P ₁ by the transport means 12 in parallel. Both transport pallet 16a of loading conveying means 2 at this time, 16b are press-molded parts 2a at payout position P _1,
The press-molded parts 2a, 2b are placed on the respective transfer pallets 15a, 15b by waiting at the payout position P ₁ with an interval corresponding to the interval between the 2b being provided between the two 16a, 16b.

Moreover, in the continuous press machine 1, in order to reduce the width, the press-formed parts 2a, 2 are placed in the posture shown by the chain line in FIG.
Since b is press-molded, the press-molded parts 2a and 2b are placed on the transfer pallets 16a and 16b in the same posture.

The transfer pallets 16a, 16b on which the press-molded parts 2a, 2b are respectively mounted are moved to the payout position P by the traveling carriage 18.
It moves from ₁ to the loading position P ₂ , but by operating the cylinder 30 during the transfer, both transfer pallets 16a,
The spaces between the 16b are expanded, and when the loading position P ₂ is reached, the interval between the two transfer pallets 16a, 16b corresponds to the interval between the loading pallets 6a, 6b waiting at the loading position P ₂ . It has become a thing. Moreover, loading pallets 6a, 6
Since press-molded parts 2a, 2b are stacked on b in upper and lower stages,
Both conveyor pallet 16a in the middle transport, 16b is provided allowed rotated by 90 degrees, both press-molded part 2a as shown by a chain line in the loading position P ₂ in FIG. 5, 2b is a posture of being rotated by 90 degrees.

In this way, the pair of press-formed parts 2a, 2b
_When it is brought to ₂ , the transfer means 4 is actuated and both press-formed parts 2a, 2b are loaded on the loading pallets 6a, 6b waiting at the loading position P ₂ . That is, the press-molded parts 2a, 2b on the transfer pallets 16a, 16b are sucked and held by the suction cups 49, by the lowering of the transfer pallets 16a, 16b.
Lifted from. Next, both press-formed parts 2a, 2b are
By moving the base body 43 to the unloading means 5 side, swinging the swinging arms 46, 46, and rotating the swinging shafts 47, 47, they move to the loading pallets 6a, 6b side, and the loading pallets 6a, 6b are moved. When the holding state by each suction cup 49 is released with the support rod 60 inserted, each press-formed part 2a, 2b is hung on the support rod 60, and each press-formed part 2a, 2b is loaded on the loading pallet 6a, 6b. Loaded on.

At this time of loading, the loading pallets 6a, 6
Since a pair of swing arms 46, 46 corresponding to b are provided and a plurality of suction cups 49 are provided on the swing arms 46, 46 via the rotary shaft 47 and the finger 48, each loading pallet 6a. , 6
The side plate 59 of b does not interfere with the operation of the transfer means 4, so that the press-molded parts 2a, 2b can be efficiently loaded on the loading pallets 6a, 6b.

Press forming parts 2a, 2 at payout position P ₁ In this way
spacing between b and loading points 6a, 6b at loading position P ₂
Intervals corresponding to both transport pallet 16a between, while changing the interval 16b, the press molded part 2a between the payout position P ₁ and loading position P _2, 2b by which is adapted to convey the at loading position P ₂ This can contribute to simplification of the structure and operation of the transfer means 4 of FIG. The payout position P ₁ and loading position conveyor pallet 16a when the conveyance of between P _2, since the 16b so as to rotate, the press-formed part 2a during transfer by the transfer means 4, necessary to perform the posture change of 2b Therefore, the loading work can be performed efficiently and stably.

In the above embodiment, the two transfer pallets 16a, 16b are rotated together, but two types of press-formed parts 2a, 2b are used.
When b is loaded on the corresponding loading pallets 6a, 6b in different postures, only one of the both transport pallets 16a, 16b may be rotated.

C. Effect of the Invention As described above, according to the present invention, the loading transport means is
Multiple movable bases that can be reciprocally moved between the delivery position and the loading position in parallel while being connected to each other with variable mutual spacing, and on each movable base to place multiple types of press-formed parts individually. And a plurality of press-formed parts between the delivery position and the loading position, since at least one of the transfer pallets is provided on the movable table so as to be rotatable about the vertical axis.
They can be transported while changing their intervals, and not only the structure for performing transfer work at the time of delivery and loading is simplified, but also at least one press-molded component can be rotated during transportation, so it can be transferred. It is possible to improve the efficiency and stability of the loading work by eliminating the need for the posture change by the means.

[Brief description of drawings]

The drawings show one embodiment of the present invention. Fig. 1 is a side view and is a sectional view taken along the line I-I of Fig. 2, Fig. 2 is a cross-sectional plan view of Fig. 1, and Fig. 3 is Figure 1 is an enlarged view of the main part of Figure 1, and Figure 4 is the third
FIG. 5 is a sectional view taken along the line IV-IV in FIG. 5, and FIG. 1 ... Continuous press machine, 2a, 2b ... Press molded parts, 3 ...
… Transfer means for loading, 4 …… Transfer means, 6a, 6b …… Loading pallet, 7 …… Transfer direction, 16a, 16b …… Transport pallet, 29a, 29b …… Movable table, P ₁ …… Payout position, P ₂ ... Loading position

Claims (1)

(57) [Claims] 1. A press position at which a plurality of press-molded parts are simultaneously discharged in parallel from a press machine, and a plurality of loading pallets corresponding to the respective press-molded parts are placed in parallel and are placed in parallel. A loading transport means for transporting the press-molded parts is disposed between the loading position set accordingly, and the press-molded parts are transferred from the loading transport means to the loading pallet at the loading position. In a device for loading a press-formed part in which a transfer device is provided, a plurality of transfer devices for loading are connected to each other with variable intervals, and are reciprocally movable in parallel between a delivery position and a loading position. A movable table and a transfer pallet provided on each of the transfer tables for individually mounting a plurality of types of press-formed parts are provided, and at least one of the transfer pallets is Press forming part of the loading device, characterized in that provided on the moving base in the pivotable about a straight axis.