JPH024462B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a container reversing device for lifting and reversing a container containing a processed material or the like.

2. Description of the Related Art There are conventional devices in which a container such as a basket is placed on a table and lifted upward, or the table is inverted on the spot and the items in the basket are dropped directly below the table. However, such a conventional device cannot perform an operation in which a person lifts a basket and turns it over, that is, an operation in which a person raises the basket and causes the contents to fall to a position a little further away than directly below. For this reason, it has been difficult to mechanize the work of reversing the baskets that come out of automated lines such as painting lines and plating lines and replacing the materials in the baskets with other containers such as pallets.

The present invention has been proposed in view of the above, and includes a guide column erected on a base, a slider that moves up and down driven by a vertical drive source, and an inversion table attached to the slider by a support shaft. The container is rotatably mounted, the support shaft is eccentrically positioned away from the center of the container on the inversion table, and a conversion mechanism that converts the vertical movement of the slider into rotational movement is connected to the inversion table. can be reversed while raising the
Furthermore, the present invention aims to provide a container reversing device that can drop the contents of the container to a slightly distant location.

The present invention will be explained below based on drawings of an embodiment in which the present invention is used in a dip coating line.

As shown in Figs. 1 and 2, the painting line consists of a first stage S ₁ , a second stage S ₂ , and a third stage on a horizontally long frame 1 made of shapes etc.
S ₃ and the fourth stage S ₄ are arranged in a row with the same pitch P to form a stage row 2, and columns 3 are erected from each corner of the frame 1, and the columns 3...
An upper frame 4 is installed on the upper end, and a guide rail 5 is installed on the upper frame 4.
and the stage row 2 are positioned parallel to each other.

In the first stage _S1 , a container containing the material to be painted, for example, a basket 6, is placed on a trolley 7, and the trolley 7 is carried onto the subframe 8.
This is for positioning the basket 6 at a predetermined position in the stage row 2.

In the second stage _S2 , a liquid tank 9 large enough to accommodate the basket 6 is provided at a predetermined position on the subframe 8, the liquid tank 9 is filled with paint, and the basket 6 containing the material is placed in the liquid. When placed in the tank 9, the material in the basket 6 can be coated by dipping.

The third stage _S3 includes a centrifugal separator 10 at a predetermined position on the subframe 8, and the second stage
When the basket 6 from _S2 is put into this centrifuge 10 and operated, excess paint adhering to the material can be removed.

The fourth stage _S4 is provided with a reversing device 12 according to the present invention movably on unloading rails 11, 11 provided in the short direction of the frame 1, and the baskets 6 from the third stage _S3 are transferred to the stage row. 2, the basket 6 is inverted, and the material inside is transferred to another container.

The reversing device 12 has a guide post 14 having a U-shaped cross section erected on a base 13 movably provided on the unloading rail 11, and a linear bearing 1 is attached to the guide post 14.
5 and 15, a vertically elongated slider 1 with a U-shaped cross section
6 is provided vertically movably, and the slider 16 is vertically moved by a vertical motion drive source.

The vertical motion drive source may have any configuration as long as it has the function of vertically moving the slider 16, but the embodiment of the vertical motion drive source shown in the drawings is a hydraulic cylinder 17 provided within the guide column 14, The hydraulic cylinder 1
A sprocket 18 is rotatably attached to the upper end of the rod 17' of No. 7, and a chain 19 whose one end is fixed to a guide column 14 and the other end is fixed to a slider 16 is hung on the sprocket 18 in the middle. Therefore, when the rod 17' is lowered by the operation of the cylinder 17, the slider 16 is lowered, as shown in FIGS. 3 and 4, and the hydraulic cylinder 17 is lowered.
When hydraulic oil is pumped to raise the rod 17',
Sprocket 18 pulls up one end of chain 19, thereby allowing slider 16 to rise.

A reversing table 20 on which the basket 6 is placed is rotatably attached to the slider 16 via a support shaft 21, and the reversing table 20 is provided with a clamp mechanism for clamping the basket 6 onto the table.

The reversing table 20 includes a top plate 20a large enough to place the basket 6, left and right side plates 20b and 20c to which a clamp mechanism is attached, and a slider 16.
It consists of a rear plate 20d to which a mounting member is attached.

As shown in FIG. 4, the clamping mechanism has support stays 22, 22 horizontally protruding from the outer surfaces of side plates 20b, 20c, and clamping hooks 23, 23 are attached to the support stays 22, 22 with intermediate shafts. upper end claws 24, 24 of the clamp hooks 23, 23.
facing above the side edge of the top plate 20a, and attach the hook 23
Rod 2 of air cylinder 25 for clamping the lower end of
It is connected to the 5' end via a bracket. Therefore, the basket 6 is placed on the reversing table 20 with the upper end claw part 24 of the hook 23 tilted outward as shown by the chain line in FIG.
When the rod 25' is projected, the hook 23 rotates as shown by the solid line in FIG. 4, and the claw 24 at the upper end can be engaged with the collar ring 26 at the lower end of the outer surface of the basket 6. For this reason, basket 6
is clamped onto the reversing table 20 by the hook 23, and will not fall even if the reversing table 20 is tilted about the support shaft 21. Note that since the collar ring 26 is formed into a circular shape, it can be effectively clamped regardless of the direction.

The support shaft 21 is connected to the inversion table 20 as shown in FIG.
The inverting table 2 is positioned near the end of the inverting table 20 far away from the center of the basket 6 placed on it.
0 is offset from the center of the basket 6. Therefore, when the reversing table 20 is rotated about the support shaft 21, the basket 6 can be moved from side to side in FIG. 5 by a distance twice the eccentricity l.

Further, the reversing table 20 is configured to be reversed in relation to the vertical movement of the slider 16. In order to invert the inversion table 20 in this way, in the present invention,
A conversion mechanism is provided connected to the reversing table 20, which converts the vertical movement of the slider 16 into a rotational movement and rotates the reversing table.

The conversion mechanism, as shown in FIGS. 4 and 5,
A rack gear 27 is provided vertically on the inner upper part of the guide column 14, a pinion gear 28 that meshes with the rack gear 27 is provided inside the slider 16, and a small gear 29 mounted on the shaft of the pinion gear 28 is mounted on the shaft of the slider 16. A chain 33 is stretched between a small sprocket 31 attached to the shaft of the large gear 30 and a large sprocket 32 fixed to the reversing table side. The large sprocket 32 is configured to be able to rotate freely relative to the support shaft 21 by means of a bearing 34.

Therefore, as shown in FIGS. 3 and 4, the reversing table 20 is lowered to the lower end, and the basket 6 is placed on the reversing table 20 and clamped by the clamp mechanism. In this state, hydraulic oil is supplied to the hydraulic cylinder 17. When the pressure is fed, the reversing table 20 can be raised by driving the hydraulic cylinder 17. In this state, the pinion gear 28 is not engaged with the rack gear 27, so the reversing table 20 rises while remaining in a horizontal state. Note that the pinion gear 28 is the rack gear 2.
7, the free end side of the inversion table 20 (the 4th
The reason why the slider 16 (right end in the figure) does not fall is because it is supported by a stopper 35 protruding from the slider 16 (FIG. 4).

When the reversing table 20 is raised halfway, the pinion gear 28 engages with the lower end of the rack gear 27, and when the reversing table 20 is further raised, the pinion gear 28 begins to rotate. When the pinion gear 28 rotates, this rotational force is reduced in speed through the small gear 29, large gear 30, small sprocket 31, etc. and is transmitted to the large sprocket 32, causing the large sprocket 32 to rotate slowly. When the large sprocket 32 rotates, the reversing table 20 to which the sprocket 32 is integrally connected rotates together with the large sprocket 32. When the slider 16 is further raised, the inversion table 2
0 rotates further in accordance with the amount of rise of the slider 16, and finally the basket 6 can be reversed as shown in FIG. The materials in the basket 6 can therefore be transferred into a deep pallet 36 placed next to the inverting device 12. The start of reversing the reversing table 20 can be appropriately set by changing the height of the rack gear 27, and the reversing speed can be appropriately set by changing the reduction ratio.

After the material has been transferred, when the slider 16 is lowered, the pinion gear 28 rotates in the opposite direction, allowing the reversing table 20 to be rotated back. When the slider 16 is further lowered, the reversing table 20 is in a horizontal state. It can be restored to its original state at the bottom.

Note that the empty basket 6 can be removed from the top of the reversing table 20 by removing it when it has descended to the bottom end, or by returning the reversing device 12 to a predetermined position on the stage row 2, as shown by the chain line in FIG. It can be removed later.

The reversing device 12 is moved from a predetermined position on the stage row 2 to the basket reversing position, or is moved back to a predetermined position on the stage row 2 by a moving mechanism for the reversing device. The moving mechanism shown in FIG. 7 has a plurality of pulleys 37 of the frame 1 rotatably attached to each other, and ropes 38 are stretched around these pulleys 37 in an endless manner. A rope 38 is exposed along the unloading rails 11, 11, and the middle of the rope 38 is connected to the base 13 of the reversing device 12 by fastening fittings 39, 39, and the rod 40' of the air cylinder 40 for moving the reversing device The tip is fixed to the middle of the rope 38 via a connecting fitting 41. Therefore, when the air cylinder 40 is actuated, the rope 38 can be moved, and the movement of the rope 38 allows the reversing device 12 to be moved along the unloading rails 11, 11. In addition, unloading rail 1
In order to reduce friction, it is desirable to interpose a linear bearing or the like between 1 and 11 and the base 13.

Next, the means for transporting the basket 6 between each stage will be explained.

As shown in FIG. 8, the guide rail 5 is made of a solid bar such as a shaped steel having a rectangular cross section. The guide rail 5 is provided with a moving member 42 that reciprocates along the guide rail 5 by being driven by a drive source. _The moving member 42 shown in _FIG . Connect the lower edge of 43 to plate 4
4, and the guide rail 5 and the side plates 43, 4
3 and is movably supported by a linear bearing 45 provided between the two. Note that the linear bearing 45 has an effective length longer than the pitch P.

The drive source reciprocates the moving member 42 along the guide rail 5 by one pitch P, and according to the drawings of the embodiment, at least one pitch P length is used.
The cylinder body is fixed to the guide rail side, and the tip of the rod 46' is connected to the moving member 42. Therefore, when the air cylinder is actuated, the moving member 42 can be moved back and forth along the guide rail 5. In order to move the movable member 42 by one pitch, a stopper (not shown) may be provided to restrict the movement range of the movable member 42, or a limit switch (not shown) may be provided to control the position of the movable member 42. (not shown)
The detection signal may be used to control a solenoid valve (not shown) for the air cylinder.

The movable member 42 is provided with elevating mechanisms one less than the number of stages S ₁ , S ₂ . . . on the guide rail 5.
The baskets 6 are vertically disposed apart from each other by a pitch P along the direction, and a detachable mechanism for attaching and detaching the basket 6 is provided at the lower end of each of these elevating mechanisms.

_The lifting mechanism lifts and lowers the basket 6 on each stage S ₁ , S _{2 .} A lifting air cylinder 47 having a stroke longer than the height of the centrifugal separator 10
a, 47b, and 47c, the upper end of the air cylinder main body is fixed to the lower surface of the moving member 42,
Elevating plates 48a, 48b, 48c are attached to the lower ends of the rods 47a', 47b', 47c' as elevating members, and attachment/detachment mechanisms are provided on the elevating plates 48a, 48b, 48c.

As shown in FIG.
A leg piece 49 is hung from the outer edge of the leg piece 49, and a removable hook 50 is pivotally attached to each leg piece 49.
A rod 52' of a detachable air cylinder 52 is connected to the air cylinder 52 through a bracket. Therefore, when air is forced into the attachment/detachment cylinder 52 and the rod 52' is raised, the hook 5 is moved up as shown by the chain line in FIG.
The claw portion 53 at the lower end can be retracted inward. Therefore, in the above condition, the lifting air cylinder 4
7 to move the lifting plate 48 up and down, each hook 50 can be inserted into or pulled out of the opening of the basket 6. Then, when the rod 52' of the air cylinder 52 for attachment/detachment is lowered with the hook 50 inserted into the opening of the basket 6, the hook 50 is inserted into the opening of the basket 6, as shown by the solid line in FIG.
to attach the claw part 53 to the upper ring 5 of the basket 6.
4 can be engaged. Therefore, in this state, if the lifting air cylinder 47 is operated to raise the lifting plate 48, the basket 6 can be raised.

Note that the upper ring 54 is similar to the collar ring 26 at the lower end.
Since the basket 6 is shaped like a circle, it can be attached to and detached from the hook 50 regardless of the stopping angle of the basket 6.

Next, the operation of transferring the baskets 6 between each stage will be explained.

The basket 6 is placed on each of the first stage S ₁ , second stage S ₂ and third stage S ₃ , and the fourth stage
S ₄ , that is, with the reversing table 20 of the reversing device 12 empty, move the moving member 42 to the right side in FIG. When activated, each hook 5
0... can be engaged with each of the above-mentioned baskets 6.... When each lifting air cylinder 47a, 47b, 47c is operated in this state, the first, second and third stages S ₁ ,
The baskets 6 on S ₂ and S ₃ can be raised respectively. In this state, when the moving air cylinder 46 is actuated to move the moving member 42 by one pitch P to the left in the figure, the basket 6 lifted from the first stage _S1 is transferred to the second stage as shown in FIG.
_S2 , the basket 6 lifted from the second stage _S2 is placed on the third stage _S3 , and the basket 6 lifted from the third stage _S3 is placed on the fourth stage _S4 , that is, the inversion table 20. Can be done. In this state, each elevating plate 48a, 48b, 48c
When the baskets 6 are lowered and the baskets 6 are detached by operating the air cylinders 52 for attachment and detachment, each basket 6 is transferred to the next stage. After transferring the baskets 6 in this manner, the moving member 42 ascends each elevator plate 48a, 48b, 48c, returns to its original position (FIG. 1) in an empty state, and prepares for the next transfer. .

Note that, when the basket 6 is placed on the reversing table ₂₀ , the reversing device 12 of the fourth stage S4 carries out the basket 6 from the stage row 2 by driving the reversing device moving air cylinder 40, as described above.
That is, it moves from the upper left to the lower left (dashed line) in FIG.
Then, the reversing device 12 reverses the basket 6 while lifting it, and transfers the materials in the basket 6 to the frame 1.
It is then transferred to a pallet 36 placed next to it, and then returned to a predetermined position in the stage row 2 to wait.

Further, at the empty first stage _S1 , the empty cart 7 is pulled out from the stage row 2, and a cart 7 carrying a new basket 6 is brought in.

Therefore, in the illustrated painting line, by repeating the above operations, the baskets 6 on each stage S ₁ , S ₂ , S ₃ , S ₄ can be sequentially transferred to the next stage.

In the above embodiments, the operation and stopping of each air cylinder, hydraulic cylinder, centrifugal separator, etc. can be controlled by a well-known electrical control circuit using a limit switch, a timer, etc.

Furthermore, in the above embodiments, air cylinders and hydraulic cylinders were used as drive sources for each mechanism, but any configuration may be used as long as a predetermined driving force can be obtained. For example, a male screw rod is rotated by a motor,
It may be driven by a slider screwed onto the male threaded rod.

Further, the number of stages in the stage row may be increased or decreased, and each stage is not limited to a painting process.

As explained above, according to the present invention, a guide post is erected on a base, a slider is provided on the guide post that moves up and down by the drive of a vertical movement drive source, and an inversion table is rotated on the slider by a support shaft. In addition to movably supporting the container, the support shaft is eccentric from the center of the container on the inversion table, and a conversion mechanism that converts the vertical movement of the slider into rotational movement is connected to the inversion table, so that the container can be inverted while being raised. Moreover, since the container is moved slightly laterally and then inverted, the contents of the container can be dropped to a slightly distant location.

Therefore, if the reversing device according to the present invention is incorporated into an automated line that requires reversing containers, such as the above-mentioned dip coating line or coating line, the automation rate of the work can be increased more than before, and work efficiency can be improved. This not only contributes to the environment, but also solves problems related to dirt and safety.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a front view of the painting line, FIG. 2 is a plan view of the painting line shown in FIG. 1, FIG. 3 is a side view, and FIG. 4 is a front view. , FIG. 5 is a plan view of the conversion mechanism, FIG. 6 is a schematic front view showing the moving state, FIG. 7 is a plan view of the reversing device moving mechanism, FIG. 8 is a sectional view of the guide rail, and FIG.
The figure is a front view of the attaching/detaching mechanism, and FIG. 10 is a front view of the painting line with the moving member moved. 6...Basket, 12...Reversing device, 13...
... Base, 14 ... Guide column, 16 ... Slider, 1
7... Hydraulic cylinder, 20... Inversion table, 21...
Support shaft, 23...clamp hook, 27...rack gear, 28...pinion gear.

Claims (1)

[Claims] 1 A guide column is erected on a base, a slider is provided on the guide column to move up and down along the guide column by the drive of a vertical motion drive source, and an inversion table on which a container is clamped and placed by a clamp mechanism is mounted on a support shaft. The slider is rotatably attached to the shaft, and the support shaft is eccentrically positioned away from the center of the container on the reversing table. 1. A container reversing device, characterized in that the reversing table is connected to the container so that the reversing table is reversed at a position away from the center of the container in relation to the vertical movement of the slider.