JP2832255B2 - Article transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article conveying apparatus.

[0002]

2. Description of the Related Art Conventionally, as an article conveying apparatus, Japanese Patent Laid-Open No. 1-20
There is one as described in Japanese Patent No. 9216. In this conventional technique, an article on a first transporting means is transferred onto a second transporting means by magnetic force.

[0003]

However, the above-mentioned prior art has the following problems. The moving directions of the first and second conveying means are different in the article transfer area. For this reason, the direction of the inertial force exerted on the article by the first transport means is different from the direction of the inertial force exerted on the article by the second transport means, and the direction of the article transferred from the first transport means to the second transport means becomes different. It is easy to cause a displacement due to a change in the inertia force, and it is difficult to improve the positioning accuracy in the process of transporting the article and to secure a stable transport posture.

[0004] The first transport means and the second transport means are spaced apart from each other, and the article suction positions of the two transport means are set at a constant interval even in the article transfer area from the first transport means to the second transport means. They are spaced apart. For this reason, after the suction effect of the first transport means on the article is cut off, the suction action of the second transport means is applied to the article, and the two transport means are transferred when the article is transferred from the first transport means to the second transport means. A suction-free period is generated in which both of the suction effects do not reach the article. Therefore, the article is placed in a free state in which the article is not restrained by the magnetic force at all during the non-sucking period, and from this point, it is difficult to improve the positioning accuracy in the transfer process and to secure the stable transfer posture.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the positioning accuracy in the process of transporting an article and to secure a stable transport attitude when the article is transferred from the first transport means to the second transport means and transported. And

[0006]

[0007]

According to a first aspect of the present invention, an article which is adsorbed and carried in at a carrying-in position on a first table provided in a first carrying means is provided in a second carrying means. In the article transporting device which is moved to the unloading position on the second table, sucked and unloaded, the first table and the second table
Each with the turning of the first transport means and the second transport means
The first table and the second table can be moved around the turning axes, and the first and second transfer means of the first table and the second table can be moved .
Paths of movement along the radial direction around the pivot axis and their
The first table and the second table on the moving route
A first table position control device that controls a movement posture that is swung about the table axes and moves both tables toward each other so as to approach and separate from each other in a fixed article transfer area . , A second table position control device, and the first table and the second table respectively move the articles to their carry-in position and the carry-out position.
A first table position control device;
The first table and the second table position control device
The second table moves closer to each other in the article transfer area
When the item on the first table is moved to the side of the second table
And the suction means on the first table side exerts an influence on the article.
At the end of adsorption and the suction means on the second table side exerts suction on the article.
Overlap adsorption period that overlaps with the beginning of arrival
After the interval, the article is completely sucked into the suction means on the second table side.
Push the article further toward the second table to the position where it is to be worn
And a pushing means .

According to a second aspect of the present invention, in the first aspect of the present invention, each of the first table position control device and the second table position control device includes a first table and a second table, respectively. First transport means and second transport means
And dynamic allowed to table movement path control means before and after a movement path along a radial direction with respect to the article transfer region of about a pivot axis, and their first table a respective first table and the second table on their movement path Second table
And a table movement attitude control means for swinging around the table axis .

[0009] The present invention described in claim 3 is based on claim 1 or
Further, in the present invention described in 2 , the suction means provided on the first table is a suction means fixed to the first table itself, and the suction means provided on the second table is a suction means fixed on the second table itself. It is made to be.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, further, the suction means provided on the first table sucks and holds an article on the first table so as to form a second one.
The suction means provided on the second table also constitutes a pushing means for pushing on the table, and the suction means fixed to the second table itself, and the suction means provided on the first table are provided.
The suction force of the step is higher than that of the suction means provided on the second table.
It is designed to be less than power .

[0011] The present invention described in claim 5 provides the invention according to claims 1-4.
In the present invention described in any one of the above, further, at least one of the first table and the second table is provided with a positioning guide for positioning the article at the carry-in position or the carry-out position.

[0012]

According to the first aspect of the present invention, the following:
Has the effect of In the article transfer area from the first transport means to the second transport means, the first table and the second table face each other and move side by side in parallel. Therefore, the direction of the inertial force exerted on the article by the first table and the direction of the inertial force exerted on the article by the second table are the same, and the change in the inertial force is applied to the article transferred from the first transport means to the second transport means. Therefore, it is possible to improve the positioning accuracy in the process of transporting the articles and to secure the stable transport attitude without causing the positional deviation based on the above.

[0013] In the article transfer area from the first transport means to the second transport means, the end of the suction applied by the suction means of the first table to the article and the start of the suction applied by the suction means of the second table to the article overlap each other. As a result, there is no non-adsorption period for the article. Therefore, the article is always restrained by suction in the transfer area and is not placed in a free state. From this point as well, the positioning accuracy in the article transport process is improved, and the transport attitude is stably ensured. Can be planned.

According to the second aspect of the present invention, the following operations are provided. The first table position control device comprises table movement path control means for moving the movement path of the first table back and forth and table movement attitude control means for swinging the first table on the movement path. Is the second
From the first transport means to the second transport means, by comprising a table travel path control means for moving the table travel path back and forth and a table travel attitude control means for swinging the second table on the travel path. In the article transfer area, the first table and the second table can be surely opposed to each other and can be moved in parallel.

According to the third aspect of the present invention, the following operations are provided. The suction means of the first table is a suction means fixed to the first table, and the suction means of the second table is a suction means fixed to the second table. In the article transfer area, the suction action of the suction means of the first table and the suction means of the second table exerted on the articles can be reliably overlapped.

According to the fourth aspect of the present invention, the following operations are provided. The suction means provided on the first table is suction means for sucking and holding an article on the first table and pushing it onto the second table, and the suction means provided on the second table is fixed to the second table itself. In the article transfer area from the first transport means to the second transport means, the suction action of the suction means of the first table and the suction means of the second table reliably overlaps the article. Can be done.

According to the fifth aspect of the present invention, the following operations are provided. By providing an article positioning guide on at least one of the first table and the second table, the article is reliably positioned at the carry-in position on the first table or the carry-out position on the second table, and is positioned during the article transport process. Accuracy can be improved and a stable transport posture can be ensured.

[0018]

FIG. 1 is a plan view showing an article conveying apparatus according to a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view of FIG. 1, and FIG. 3 is a plan view of a table position control apparatus of FIG. 4 is the first in FIG.
FIG. 5 is a configuration diagram showing the positioning guide of FIG. 1, FIG. 6 is a schematic diagram showing the article transfer system of the first embodiment, and FIG. 7 is a diagram showing the article transfer system of the second embodiment. Pattern diagram,
FIG. 8 is a schematic diagram showing an article transfer system of the third embodiment, and FIG. 9 is a schematic diagram showing an article transfer system of the fourth embodiment.

(First Embodiment) (FIGS. 1 to 6) As shown in FIGS. 1 and 2, a transport device 10 comprises a first transport spider 11 (first transport means) and a second transport spider 12 (second transport spider). Transport means). Then, the transport device 10 transfers the article 1 adsorbed at the loading position on the first table 13 provided at each of a plurality of positions in the circumferential direction of the first transport spider 11 and loaded in the circumferential direction of the second transport spider 12. It is transferred to a carry-out position on the second table 14 provided at each of a plurality of positions, sucked and carried out.

The article 1 is, for example, a container itself or a container fixture for detachably mounting the container, and has a rectangular (or circular) permanent magnet 1A built in the center of the bottom.

Here, the transfer device 10 is a frame-shaped gantry 1
The support bases 16 and 17 are fixed on the upper and lower sides of the rotary shaft 5, and the pivot shafts 18 and 1
9 is rotatably supported, and the first transport spider 11 and the second transport spider 12 are respectively fixed to the two pivot shafts 18 and 19. The transport device 10 includes gears 21 and 22 provided on each of the turning shafts 18 and 19 and the support base 17.
The four gears 23 and 24, which are rotatably supported by the first conveyor spider 11, mesh with each other and rotate the rotating force of the motor 25 fixed to the gantry 15 by the belt 26.
Can be transmitted to the turning shaft 18. Thereby, the first
The transport spider 11 is rotated by a motor 25, and the second transport spider 12 is rotated in synchronization with the first transport spider 11 via the above-described gear train.

In addition, the transport device 10 rotates each of the transport spiders 1 around the turning shafts 18 and 19 above the support base 17.
A first cam plate 27 and a second cam plate 28 are fixedly disposed directly below 1 and 12. The first cam plate 27 is connected to the first table 13.
Groove cam 27A for front and rear, groove cam 2 for swing
7B and 27C. In addition, the second cam plate 28
Groove cam 28 for front and rear sliding for the second table 14
A, and has swing groove cams 28B and 28C.

However, the transport device 10 controls (A) the moving path and the moving posture of each of the first table 13 and the second table 14 so that both tables 1
Translational movement while opposed to each other 3,14 (hereinafter, parallel
The meaning of the word move is to move in parallel
It to) the first table position controller 31 for the with a second table position controller 32,
(B) For each of the first table and the second table 14,
An adsorbing means for causing the adsorbing action on the article 1 to overlap with each other in the article transfer area; and (C) positioning the article 1 at the carry-in position on the first table 13 and positioning the article 1 on the second table 14. A push guide 50 for pushing upward is provided. Hereinafter, the above (A) to (C) will be described in detail.

(A) Table position control device (FIGS. 1 to 4) (A-1) First table position control device 31 The first transport spider 11 is a linear rail fixedly provided at each of a plurality of positions in the circumferential direction. 33 to table support 34
Is slidably mounted, and a table shaft 35 integral with the first table 13 is rotatably supported on the table support 34. 35A is a table base.

Then, the first table position controller 31
Indicates the moving path of the first table 13 as the first transport spider 1
The cam follower 36A provided on the table support 34 is used as a table movement path control means for moving the table cam 34 back and forth in the radial direction of the first cam plate 27.
7A. When the first transport spider 11 rotates, the table support 34 moves back and forth along the linear rail 33 as the cam follower 36A follows the groove cam 27A, and as a result, the first support supported by the table support 34 It is assumed that the moving route of the table 13 is moved back and forth.

Further, the first table position control device 31
The cam followers 36B and 36C provided on the bifurcated lever 37 fixed to the lower end of the table shaft 35 of the first table 13 serve as table movement attitude control means for swinging the first table 13 on its movement path. It is engaged with the swing groove cams 27B and 27C. When the first transport spider 11 rotates, the cam followers 36B, 36C
Follows the groove cams 27B and 27C, the forked lever 37 rotates around the center axis of the table shaft 35, and as a result, the first table 13 integrated with the table shaft 35 to which the forked lever 37 is fixed is moved. It will be rocking.

Therefore, the first table position control device 31
As described above, the first table 13 is moved forward and backward along the movement path of the first table 13 and
For a transfer line L (FIGS. 1 and 3) defined in the article transfer area between the transfer spider 11 and the second transfer spider 12,
The first table 13 is moved back and forth at right angles.
The movement of the first table 13 is described in (A-2) below.
In conjunction with the movement of the table 14, the first table 13 and the second table 14 are moved in parallel while facing each other.

(A-2) Second table position controller 32 Like the first transport spider 11, the second transport spider 12 has a table support on a linear rail 43 fixedly provided at each of a plurality of positions in the circumferential direction. The table support 44 rotatably supports a table shaft 45 integrated with the second table 14. 45A is a table base.

Then, the second table position control device 32
Moves the moving path of the second table 14 to the second transport spider 1
The cam follower 46A provided on the table support 44 is used as a table moving path control means for moving the table cam 44 back and forth in the radial direction of the second cam plate 28.
8A. When the second transport spider 12 rotates, the table support 44 moves back and forth along the linear rail 43 as the cam follower 46A follows the groove cam 28A, and as a result, the second support supported by the table support 44 It is assumed that the moving path of the table 14 is moved back and forth.

Further, the second table position control device 32
The cam followers 46B and 46C provided on the forked lever 47 fixed to the lower end of the table shaft 45 of the second table 14 are used as table movement attitude control means for swinging the second table 14 on its movement path. They are engaged with the swing groove cams 28B and 28C. When the second transport spider 18 rotates, the cam followers 46B, 46C
Follows the groove cams 28B and 28C, the forked lever 47 rotates about the center axis of the table shaft 45. As a result, the second table 14 integrated with the table shaft 45 to which the forked lever 47 is fixed is moved. It will be rocking.

Therefore, the second table position controller 32
As described above, the first table is moved forward and backward along the moving path of the second table 14 and the second table 14 is swung.
For a transfer line L (FIGS. 1 and 3) defined in the article transfer area between the transfer spider 11 and the second transfer spider 12,
The second table 14 is moved back and forth at right angles.
The movement of the second table 14 corresponds to the movement of the first table described in (A-1).
In conjunction with the movement of the table 13, the first table 13 and the second table 14 are moved in parallel while facing each other.

(B) Suction means (FIGS. 1 to 5) (B-1) Suction means of first table 13 The first table 13 has a rectangular (or circular) permanent magnet 48 fixed to the lower surface of the table. Then, the article 1 is attracted and held at the carry-in position by the mutual attraction between the permanent magnet 1A of the article 1 and the permanent magnet 48.

(B-2) Attraction means of the second table 14 The second table 14 also has a rectangular (or circular) permanent magnet 49 fixed to the lower surface of the table, and the permanent magnet 1A provided in the article 1 and the permanent magnet 1A. Due to the mutual attraction action with the magnet 49, the article 1 is suction-held at the carry-out position.

Here, the tip of the first table 13 and the second
At the tip of the table 14, as shown in FIG. 6, comb teeth 13A and 14A that can mesh with each other are provided.
Thereby, the first table 13 and the second table 14 are opposed to each other and moved in parallel as described above,
When they are moved back and forth at right angles to the transfer line L in the article transfer area, the two comb teeth 13A and 14A mesh with each other, and their permanent magnets 48 and 49 are arranged close to each other. This makes it possible to overlap the end of adsorption of the article 1 on the permanent magnet 1A with the beginning of adsorption of the permanent magnet 49 on the permanent magnet 1A of the article 1.

(C) Push Guide 50 (FIGS. 1, 2, 4, and 5) In the first table 13, the L-shaped push guide 50 is slidably mounted on the linear rail 51 provided on the table base 35A. , A cam follower 52
Is provided. On the other hand, the transport device 10 includes a support base 16.
A cam plate 53 is fixedly disposed just above the first transport spider 11 around a pivot shaft 18 below, and the outer peripheral surface of the cam plate 53 is used as a pushing cam 53A. The cam follower 52 of the pushing guide 50 is connected to the spring post 54 supported by the table base 35A and the pushing guide 5.
0 is constantly pressed against the cam 53A of the cam plate 53 by the tensile force of the spring 55 interposed between the cam 53A and the cam 53A. When the first transport spider 11 rotates, the position of the push guide 50 on the linear rail 51 is controlled as the cam follower 52 follows the push cam 53A, and the article 1 on the first table 13 is moved to a predetermined loading position. Or the article 1 on the first table 13 can be pushed and moved toward the second table 14.

When the article 1 on the first table 13 is positioned at the carry-in position by the pushing guide 50, the permanent magnet 1A of the article 1 is
It is set so as to be located on the opposite side of the pushing guide 50 than the pushing guide 50. Thereby, the permanent magnet 4 of the first table 13
The attraction force exerted on the permanent magnet 1A of the article 1 by the article 8 causes the article 1 to be attracted to the push guide 50 side, and the article 1 is pressed against two adjacent side surfaces against the L-shaped surface of the push guide 50 to stably position the article 1. The state will be given.

Hereinafter, the transfer apparatus 1 using the above (A) to (C)
The article transport operation 0 will be described (FIG. 6). (1) On the entry side of the article transfer area, the article 1 has its permanent magnet 1
A is attracted to the permanent magnet 48 of the first table 13 and its two side surfaces are pressed against the L-shaped surface of the push-in guide 50 to be positioned and held at the carry-in position (FIG. 6).

(2) In the article transfer area, the first table 13 and the second table 14 move back and forth at right angles to the transfer line L described above. Then, the first table 13 and the second table
The table 14 causes the comb teeth 13A, 14A to mesh with each other and their permanent magnets 48, 49 to be arranged close to each other (FIG. 6).

(3) In the article transfer area, in the intermediate step following the above (2), the push-in guide 50 advances with respect to the transfer line L, and transfers the article 1 on the first table 13 to the second table 14 side. Press In this process, the article 1 goes through an overlap attracting period in which the permanent magnet 1A is simultaneously attracted to the permanent magnet 48 of the first table 13 and the permanent magnet 49 of the second table 14 (FIG. 6).

(4) In the article transfer area, in the end step following the above (3), the pushing guide 50 pushes the article 1 further toward the second table 14, and the permanent magnet 1 A of the article 1 is moved to the second table 14. The article 1 is completely attracted to the permanent magnet 49 and the transfer of the article 1 to the carry-out position on the second table 14 is completed (FIG. 6). Then, the first table 13 and the second table 1
No. 4 moves away from the transfer line L to an independent movement path.

Hereinafter, the operation of this embodiment will be described. In the article transfer area from the first transport spider 11 to the second transport spider 12, the first table 13 and the second table 14 face each other and move in parallel. Therefore, the first
The direction of the inertial force that the table 13 exerts on the article 1 and the direction of the inertial force that the second table 14 exerts on the article 1 are the same,
The position of the article 1 transferred from the first transport spider 11 to the second transport spider 14 does not shift due to a change in the inertial force, the positioning accuracy in the transport process of the article 1 is improved, and the transport attitude is improved. Stability can be ensured.

In the area where articles are transferred from the first transport spider 11 to the second transport spider 12, the first table 13
The end of the attraction that the attraction means (permanent magnet 48) of the second table 14 exerts on the article 1 and the beginning of the attraction that the attraction means (permanent magnet 49) of the second table 14 exerts on the article 1 overlap with each other. Does not occur.
Therefore, the article 1 always receives the binding force of the suction in the transfer area and is not placed in a free state, which also improves the positioning accuracy in the process of transporting the article 1 and stabilizes the transport posture. Secure can be achieved.

Table moving path control means (groove cam 27A, cam follower 36A) for causing the first table position control device 31 to move the moving path of the first table 13 back and forth, and a table for swinging the first table 13 on the moving path. Table movement path control means (groove cams 28A, cam followers) comprising movement posture control means (groove cams 27B, 27C, cam followers 36B, 36C), and the second table position control device 32 moving the movement path of the second table 14 back and forth. 46A) and a table movement attitude control means (groove cam 28) for swinging the second table 14 on its movement path.
B, 28C, and cam followers 46B, 46C).
In the area for transferring articles to the transport spider 12, the first table 1
3 and the second table 14 can be surely opposed to each other and can be moved in parallel.

The attraction means of the first table 13 is a permanent magnet 48 fixed to the first table 13 and the second table 1
4 is a permanent magnet 49 fixed to the second table 14
In the article transfer area from the first transport spider 11 to the second transport spider 12, the permanent magnet 48 of the first table 13 and the permanent magnet 49 of the second table 14 affect the article 1. The adsorption action can be reliably overlapped.

The first table 13 and the second table 14 are respectively provided with permanent magnets 48 and 49 as magnetic attraction means.
Is provided, the article 1 can be surely sucked and held on each of the first table 13 and the second table 14.

By providing the article positioning guide 50 on the first table 13, the article 1 can be moved to the first table 13.
Positioning is reliably performed at the upper carry-in position, the positioning accuracy in the process of transporting the article 1 is improved, and a stable transport posture can be ensured.

(Second Embodiment) (FIG. 7) The second embodiment is different from the first embodiment in that the article 1 is not pushed by the pushing guide 50 in the article transfer area but moves forward. 14 so that they can be transferred so as to be scooped. That is,
(1) to (4).

(1) On the entry side of the article transfer area, the article 1 has its permanent magnet 1A attracted to the permanent magnet 48 of the first table 13 and presses its two side surfaces against the L-shaped surface of the pushing guide 50. And is positioned and held at the carry-in position (FIG. 7).

(2) In the article transfer area, the first table 13 and the second table 14 move back and forth at right angles to the transfer line L described above. Then, the first table 13 and the second table
The table 14 causes the comb teeth 13A, 14A to mesh with each other and their permanent magnets 48, 49 to be located close to each other (FIG. 7).

(3) In the article transfer area, in the intermediate process following the above (2), the second table 14 moves forward while the pushing guide 50 continues to be stationary with respect to the transfer line L, and the first table 13 Retreats. In this process, goods 1
Is the permanent magnet 1A of the first table 13
8 and the permanent magnet 49 of the second table 14 at the same time passes an overlap attracting period (FIG. 7).

(4) In the article transfer area, in the end step following (3), the push-in guide 50 which is still stationary positions the article 1 at the carry-out position on the second table 14. Thereby, the permanent magnet 1A of the article 1 is completely attracted to the permanent magnet 49 of the second table 14, and the article 1 is
The transfer to the carry-out position on the table 14 is completed (FIG. 7). Then, the first table 13 and the second table 14
Move from the transfer line L to independent moving paths.

(Third Embodiment) (FIG. 8) The third embodiment is different from the first embodiment in that a permanent magnet 1B is provided on the side surface of the article 1 and a permanent magnet 50A is provided in the push-in guide 50. That is, the magnets 1B and 50A are attracted to each other. At this time, the first table 13 and the second
The table 14 does not need to provide the comb teeth 13A, 14A and arrange the permanent magnets 48, 49 close to each other. That is, the following (1) to (4).

(1) On the entry side of the article transfer area, the article 1 has its permanent magnet 1 A attached to the permanent magnet 48 of the first table 13.
The permanent magnet 1B is pushed into the permanent magnet 50 of the guide 50.
The two side surfaces are pressed against the L-shaped surface of the pushing guide 50, and are positioned and held at the carry-in position (FIG. 8).

(2) In the article transfer area, the first table 13 and the second table 14 move back and forth at right angles to the transfer line L described above. Then, the first table 13 and the second table
The table 14 has a small interval or a small interval therebetween. However, the permanent magnets 48 and 49 do not need to be arranged close to each other.

(3) In the article transfer area, in the intermediate step following (2), the pushing guide 50 advances with respect to the transfer line L, and the permanent magnet 1 of the article 1 on the first table 13 is moved.
B is pressed into the second table 14 side while being attracted and held by the permanent magnet 50A (FIG. 8).

(4) In the article transfer area, at the end of the pushing step (3), the pushing guide 50 moves the article 1
At the carry-out position on the second table 14. At this time, the article 1 has its permanent magnet 1B attracted by the permanent magnet 50A of the pushing guide 50, and at the same time, the permanent magnet 1A is attracted by the permanent magnet 49 of the second table 14, thereby giving an overlap attracting state (FIG. 8).

Thereafter, the pushing guide 50 moves backward with respect to the transfer line L. At this time, the attraction force exerted by the permanent magnet 50A on the permanent magnet 1B is such that the permanent magnet 49
A is smaller than the suction force exerted on A, and as a result, the article 1 is retained and held on the second table 14. Thereby, the permanent magnet 1A of the article 1 is completely attracted to the permanent magnet 49 of the second table 14, and the article 1 is completely transferred to the unloading position of the second table 14. Thereafter, the first table 13 and the second table 14 move away from the transfer line L to independent moving paths.

(Fourth Embodiment) (FIG. 9) The fourth embodiment differs from the first embodiment in that the first table 1
Third, the vacuum suction sections 48A and 49A are employed as suction means provided on the second table 14. The vacuum suction sections 48A and 49A are the first table 13 and the second table 1
4 is provided to cover a large area including the outer periphery,
The first table 13 and the second table 14 do not need to be provided with comb teeth and to arrange the vacuum suction parts 48A and 49A in close proximity. The article 1 does not need to include the permanent magnet 1A. That is, it is as shown in the following (1) to (4).

(1) On the entry side of the article transfer area, the article 1 has its bottom surface sucked by the vacuum suction portion 48 A of the first table 13, and its two side surfaces are pressed against the L-shaped surface of the pushing guide 50. Thus, it is positioned and held at the carry-in position (FIG. 9).

(2) In the article transfer area, the first table 13 and the second table 14 move back and forth at right angles to the transfer line L described above. Then, the first table 13 and the second table
The table 14 has their outer edges close to each other and their vacuum suction parts 48A, 49A are arranged close to each other (FIG. 9).

(3) In the article transfer area, in the intermediate step following the above (2), the push-in guide 50 advances with respect to the transfer line L, and transfers the article 1 on the first table 13 to the second table 14 side. Press In this process, the article 1 goes through an overlap suction period in which the bottom surface is simultaneously suctioned by the vacuum suction part 48A of the first table 13 and the vacuum suction part 49A of the second table 14 (FIG. 9).

(4) In the article transfer area, in the end step following the above (3), the pushing guide 50 pushes the article 1 further toward the second table 14, and the bottom surface of the article 1 is vacuum-adsorbed on the second table 14. The transfer of the article 1 to the carry-out position on the second table 14 by completely adsorbing the article 49A is completed (FIG. 9). Then, the first table 13 and the second table 14
Move from the transfer line L to independent moving paths.

In the embodiment of the present invention, the second guide is substantially the same as the push guide 50 provided in the first embodiment.
A positioning guide for positioning the article on the table at the carry-out position may be provided on the second table.

Further, in the embodiment of the present invention, the article on the first table is adsorbed by the article adsorbing means provided on the second table in substantially the same manner as in the pushing guide 50 with the permanent magnet 50A provided on the first table. It is also possible to employ an adsorbing means for holding and pulling onto the second table.

[0065]

As described above, according to the present invention, when an article is transferred from the first conveying means to the second conveying means and conveyed, the positioning accuracy in the conveying process of the article is improved, and the conveying posture is improved. Can be secured.

[Brief description of the drawings]

FIG. 1 is a plan view showing an article transport device according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a plan view showing the table position control device of FIG. 1;

FIG. 4 is a configuration diagram showing a first table of FIG. 1;

FIG. 5 is a configuration diagram showing a positioning guide of FIG. 1;

FIG. 6 is a schematic diagram showing an article transfer method according to the first embodiment.

FIG. 7 is a schematic diagram illustrating an article transfer method according to a second embodiment.

FIG. 8 is a schematic diagram illustrating an article transfer method according to a third embodiment.

FIG. 9 is a schematic diagram illustrating an article transfer method according to a fourth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Article 1A Permanent magnet 10 Transport device 11 1st transport spider (1st transport means) 12 2nd transport spider (2nd transport means) 13 1st table 14 2nd table 31 1st table position control device 32 2nd table position Control device 48, 49 Permanent magnet 48A, 49A Vacuum suction part 50 Push-in guide 50A Permanent magnet

Claims (5)

(57) [Claims] An article which is adsorbed and carried in at a carry-in position on a first table provided in a first carrying means is transferred to a carry-out position on a second table provided in a second carry means and attracted. In the article transporting apparatus for unloading and discharging , each of the first table and the second table is transported by a first transport unit.
And the rotation of the second conveying means, and around their turning axes.
Movable, and the first transport means of each of the first table and the second table
The moving path along the radial direction of the second conveying means around the turning axis and the first table and the second table on the moving path.
Rock the tables around their axis
The two tables are controlled so as to be opposed to each other in a certain article transfer area so as to approach and separate from each other.
A first table position control device for relative movement, with a second table position controller, to each of the first table and the second table, the article it
A first table position control device and a second table position control device , which are provided with suction means for sucking and holding at a carry-in position and a carry-out position of the first and second tables.
The first table and the second table transfer the articles
When approached to each other in the area,
Push the article into the side of the second table,
The end of suction applied to the article by the suction means and the suction on the second table side
The attachment means and the beginning of adsorption on the article overlap
After passing the overlap adsorption period, the article is
The article further to the position where it is completely adsorbed by the suction means on the
An article conveying device comprising a pushing means for pushing the table toward the two tables . Wherein each of the first table position control device and the second table position control device, the pivot axis of the first table and the second table each of the first conveying means and second conveying means or
A table moving path control means for moving the moving path along the radial direction forward and backward with respect to the article transfer area, and moving each of the first table and the second table on the moving path.
The first table and the second table are replaced with those tables
2. The article conveying apparatus according to claim 1, further comprising a table movement attitude control means for swinging around an axis . 3. The method according to claim 1, wherein the suction means provided on the first table is a first table.
3. The article transport device according to claim 1, wherein the suction means is fixed to the table itself, and the suction means provided on the second table is a suction means fixed to the second table itself. 4. The apparatus according to claim 1, wherein the suction means provided on the first table comprises a first table.
The articles on the table also constitutes the pushing means for pushing on the second table holding suction, the suction means comprising a second table, a suction means which is fixed to the second table itself, adsorption comprising a first table The suction force of the means is
The article conveying device according to claim 1 , wherein the suction force is smaller than a suction force of a suction unit provided on the table . 5. The article transport apparatus according to claim 1, wherein a positioning guide for positioning an article at a carry-in position or a carry-out position is provided on at least one of the first table and the second table.