JPH07106870B2 - Lifting / conveying device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device for vertically moving a large porcelain plate or other objects to be conveyed.

(Background of the Invention) In a process of manufacturing a large porcelain plate, it may be necessary to carry it up and down. For example, in the case where a press machine is installed on the first floor and a firing kiln is installed on the upper floor, it is necessary to convey the molded ceramic plate molded by the molding apparatus on the first floor to the upper floor for sintering. is there. Alternatively, it is necessary to lower the product baked on the upper floor to the first floor for shipping or the like.

Conventionally, various devices have been devised as an elevating / conveying device for articles, but this type of elevating / conveying device that has been conventionally provided is not suitable as a device for the above case, and a large ceramic plate (for example, It was impossible to smoothly convey (sizes of 300 mm square or more) from a predetermined position to a predetermined position without damaging it.

(Means for Solving the Problem) The present invention has been made to provide an up-and-down transportation device having a novel mechanism that has not been available in the past and can be suitably used for up-and-down transportation of such a large porcelain plate and other transported objects. The gist of the transfer device is (a) a transfer body that holds an object to be transferred in and out, (b) a frame that holds the transfer object so that it can be raised and lowered, and (c) a lifting guide for the transfer body. And the guide mechanism
(D) A reciprocating member having a predetermined length in the up and down direction and capable of reciprocating up and down in a predetermined stroke, (e) a driving means for moving the reciprocating member up and down in the predetermined stroke, and (f) a predetermined up and down direction. A plurality of movable claws provided on the reciprocating member at a pitch and moving up and down together with the reciprocating member, and when ascending, the movable claw is locked to the transfer body and lifts while supporting the moving body; and (g) the movable claw. Movable pawl drive means for opening and closing between a working position where it is locked to the body and a non-working position where it is not locked to the transfer body;
(H) Fixed claws which are provided in a plurality of upper and lower stages at a predetermined pitch corresponding to the movable claws and which lock the transfer bodies lifted by the movable claws at respective fixed positions to receive and support the transfer bodies from the respective movable claws. And (i) fixed claw driving means for driving the fixed claw to open and close between an operating position where it is locked to the transfer body and a non-operating position where it is not locked to the transfer body.

(Operation and Effect of the Invention) As described above, in the device of the present invention, the large ceramic plate,
An object to be conveyed having another shape is held so that it can move in and out of the transfer body, and the transfer body is held so as to be able to move up and down by the frame. Thus, this transfer body is reciprocally moved, its driving means, movable claws, fixed claws, etc.
It is designed to be fed in increments of a predetermined stroke.
That is, in the apparatus of the present invention, the reciprocating member is moved up and down by a predetermined stroke by its driving means. At this time, the movable claw is also lifted up as a unit, but when the movable claw is in the open position in the operating position, the movable claw is locked to the transfer body and supports it, and the movable claw is moved upward by the rising stroke of the reciprocating member. Lift to. At this time, the fixed claw is in the closed state at the non-acting position, and when the transfer body is lifted by the stroke, it is opened to the actuating position and locked to the transfer body. That is, the transfer body is supported. When the transfer body is supported by the fixed claw, the movable claw is closed at the non-acting position to release the support of the transfer body, and then the reciprocating member is lowered by the ascending stroke to the initial position. And returns. From this state, the reciprocating member is again raised by a predetermined stroke, and at this time, the movable claw at the upper position corresponding to this fixed claw is locked and supported by the transfer body newly supported by the fixed claw, and reciprocated. As the moving member rises, it is lifted up by the same stroke by one step. Another fixed claw stands by at the lifting destination, and receives and supports the transfer body lifted up one step based on the same operation as described above. The above-described operation is repeated one after another, and the transfer body is fed upward by each step.

The above is the operation for lifting the transfer body, but by controlling the opening / closing operation timing of the movable pawl and the fixed pawl, the transfer body is engraved and fed downward from above by the same movement of the reciprocating member. It is also possible.

According to the apparatus of the present invention, it is possible to smoothly convey an object to be conveyed from a lower step to an upper step, or vice versa.
The production lines can be combined well.

In addition, the device of the present invention has a feature that it can also serve as a device for stocking an object to be conveyed as an intermediate product in such a production line.

In the device of the present invention, when the reciprocating member is reciprocated, only a specific one of the plurality of movable claws provided on the reciprocating member is kept closed, so that the reciprocating member is partially idle-moved. Can be made. That is, the reciprocating member normally feeds as many transfer bodies as the number of movable claws at the same time, but when a specific movable claw is kept closed, only the opened claws support the transfer bodies. The movable claw that has been chopped and closed is in idle motion without being locked to the transfer body,
Do not chop the transfer body. Therefore, according to the apparatus of the present invention, regardless of the take-out speed of the transported object at the take-out station, the transfer body is chopped at a fast feed pitch without causing clogging on the carrying line on the way to the take-out station. Can be sent. As a result, a large number of carriers (objects to be transported) can be kept in a standby state in a continuous state on the upstream transport line that reaches the take-out station. As a result, for example, even when the operation of the press device is stopped for setup change, it is not necessary to stop the production line, and the productivity can be improved.

(Example) Next, the Example of this invention is described in detail based on drawing.

FIG. 1 to FIG. 3 show a schematic overall configuration of an elevating / conveying device installed over the first floor to the third floor. 1 in the figure
0, 12, and 14 are the first floor, the second floor, and the third floor, respectively. As shown in the figure, this lifting / conveying device is a roller conveyor.
The transfer body 16 that holds a large ceramic plate (here, the size is 90 mm square) 15 (see Fig. 10) that has been horizontally conveyed at 11 in the upper and lower stages is arranged from the first floor to the third floor. The ceramic plate 15 is conveyed by performing a circulation motion including a rising motion up to and a descending motion from the third floor to the first floor, and the frame 18 extending vertically and the transfer body 16 are relatively moved along the ascending path. A first main cylinder 20 and first, second, third auxiliary cylinders 22, 24, 26 (see FIG. 4) for feeding with a large stroke, and a relatively large stroke of the transfer body 16 along the descending path. The second main cylinder 28 and the fourth, fifth, sixth, and seventh auxiliary cylinders 30, 32, 34, 36 (see FIG. 5) for feeding in increments with the transfer body 16 from the ascending stroke on the third floor A first traverse device 40 including a trolley 38 for delivering to the descending stroke, a platform for delivering the transfer body 16 from the descending stroke to the ascending stroke at the first floor portion
A second traverse device 44 including 42 is included. The first traverse device 40 is provided on the pedestal 41, and the second traverse device 44 is provided in the recess 43 provided on the first floor.

In this example, the first main cylinder 20 and the second main cylinder 28 serve as driving means.

Large porcelain plate 15 carried by the roller conveyor 11
In the transfer station for transferring the transfer roller 16 to the transfer body 16, as shown in FIG. 10, a large number of transfer rollers 46 are provided adjacent to the end of the roller conveyor 11 in parallel with each other and between the rollers 46. It is installed in the state of forming a gap.
These transfer rollers 46 have support members at the same end.
It is supported in a cantilevered manner by 48, and is rotationally driven on the same end side.

The transfer body 16 is composed of a number of support frames 50 as shown in FIGS. 10 to 13. Each support frame 50
Has a thickness that can be inserted into the gap between the delivery rollers 46 as shown in FIG. 12, and is arranged at a pitch corresponding to the pitch of the gap, and the delivery rollers 46
Is fixed to the frame 52 at the end opposite to the supporting side and is supported in a cantilever manner. A plurality of horizontal grooves 54 are formed in each of the support frames 50 as shown in FIGS. 10 and 11, and a shelf 56 for supporting the large-sized ceramic plate 15 is formed by these grooves 54. It is formed in multiple stages at the top and bottom.

On the other hand, as shown in FIGS. 10 and 13, two types of three guide rollers 58, 60 are vertically arranged on both sides of the frame 52, and these guide rollers are fixed to the frame 18. The rail 62 is sandwiched between these guide rails 62.
The transfer body 16 is connected to the frame 18 via the guide rollers 58 and 60.
Is held and is guided up and down.
The frame 52 of the transfer body 16 has a movable pawl 74 (FIG. 8) and a fixed pawl 84, which will be described later, as clearly shown in FIG.
A locking portion 64 for locking (FIG. 9) is provided.

The first main cylinder 20 for raising the transfer body 16
And the first, second, and third auxiliary cylinders 22, 24, 26 have a fourth
As shown in the figure, bars 66, 68, 70, 72 for directly carrying the transfer body 16 are connected, and movable claws 74 are provided on each of them. The longest bar (reciprocating member) 66 connected to the first main cylinder 20 is provided with a plurality of movable claws 74 vertically arranged in a plurality of stages at a predetermined pitch.

Guide rollers 76 and 78 are fixed to both side surfaces of each bar as shown in FIG. 8, and these guide rollers 76 and 78 are fixed to the frame 18 as shown in FIGS. 6 and 7. The inner surface and the bottom surface of the guide groove 80 formed in
The guide rollers 76, 78 and the guide groove 80 serve to guide the bars 66, 68, 70, 72 up and down.

On the other hand, the movable claw 74 provided on the inner surface side of each bar 66 to 72
Is rotatably supported by a bearing block 81 as shown in FIG. 8, and the frame 18 is rotatably supported by a rotary actuator (movable claw driving means) 82 thereon.
It is configured to be rotationally driven between an operating position that projects inward, that is, toward the transfer body 16 side, and a non-operating position that is rotated 90 degrees from the operating position.

As shown in FIGS. 4 and 5, fixed pawls 84 are provided on the inner surface of the frame 18 at a pitch corresponding to the arrangement pitch of the movable pawls 74 of the carrying bar 66. This fixed claw 84 is also rotatably supported by two bearing blocks 86 as shown in FIG. 9, and is moved toward the transfer body 16 by an upper rotary actuator (fixed claw driving means) 88. It is designed to be rotationally driven between a projecting working position and a non-working position rotated by 90 degrees. The movable claw 74 and the fixed claw 84 are provided at positions displaced in the front-rear direction (left-right direction in the figure) as shown in FIG. 6, and as shown in FIG. A safety claw 90 is provided immediately below the fixed claw 84 on the side. The safety claw 90 is provided for receiving the fixed claw 84 below the transfer body 16 when it fails to support the transfer body 16. As shown in FIG. When the transfer body 16 descends, it rotates clockwise to escape, and when the transfer body 16 descends, it stops rotating at a fixed position to support it.

As shown in FIG. 5, the second main cylinder 28, the fourth, fifth, sixth, and seventh auxiliary cylinders 30, 32, 34, 36 for lowering the transfer body 16 also have the transfer body. Bars 67 (reciprocating members), 69, 71, 73, 75 for directly transporting the 16 are connected, and movable claws 74 are provided on each of the bars 67 to 75.
Since the configuration is similar to that described above, only the reference numerals are shown here and the detailed description is omitted.

Now, the first main cylinder 20 for raising the transfer body 16,
Second main cylinder 28 for lowering first, second, third auxiliary cylinders 22, 24, 26 and transfer body 16 and fourth, fifth, sixth, seventh auxiliary cylinders 30, 32, 34, 36 Respectively play different roles, but those roles will be explained in the section of the action described later, and detailed explanations thereof will be omitted here.

Next, the first traverse device 40 will be described. As shown in FIGS. 15 to 17, the carriage 38 of the first traverse device 40 has pinion gears 96 at both ends of a shaft 94 that is rotationally driven by a motor 92, and these pinion gears 96 are provided. Based on the meshing with the rack 98 that is fixedly extended, the wheels 102 mounted on the rails 100 are horizontally moved while being rotated, so that the ascending stroke and the descending stroke of the transfer body 16 are communicated. It has become. The carriage 38 has a guide rail 104, and the guide rail 104 is connected to the guide rail 62 fixed to the frame 18 at the horizontal transfer end.

Further, the carriage 38 has a fixed claw 106 having the same structure as the fixed claw 84 provided on the frame 18 for supporting the transfer body 16 conveyed thereto.

The second traverse device 44 provided on the first floor portion is basically the same as the first traverse device 40 on the third floor portion, so detailed description thereof will be omitted.

Next, the operation of the present device will be specifically described by taking as an example the case where a large-sized ceramic plate 15 formed by a press device (not shown) on the first floor is conveyed to the carry-in entrance of the firing kiln on the third floor.

In this device, the transfer body 16 is raised by the first main cylinder 20, the first, second and third auxiliary cylinders 22, 24 and 26 in the ascending stroke, and the second main cylinder in the descending stroke.
28 and 4th, 5th, 6th, 7th auxiliary cylinders 30, 32, 34, 3
It is lowered at 6. The role of each of these cylinders is
It is as follows.

First, when the empty transfer body 16 is carried by the second traverse device 44 on the first floor, the movable claw 74 of the bar 68 connected to the first auxiliary cylinder 22 is at the position A ₁ in FIG. It is locked to the locking part 64 at the upper end of the transfer body 16, and then the cylinder
The action of 22 raises this to the position of A ₁ ′ by stroke S ₁ . Then the bar connected to the second auxiliary cylinder 24
The movable claw 74 of 70 is locked to the locking part 64 at the lower end of the transfer body 16, and is actuated by the cylinder 24 to feed it upward in a plurality of steps (here, 10 steps), and finally to the position. Lift stroke S _{2 to} A ₂ . At this time, the transfer body 16 relatively moves upward through the gaps between the large number of delivery rollers 46 at the delivery station to receive the large porcelain plate 15 on the delivery rollers 46. That is, as shown in FIG. 10, the large porcelain plate 15 formed by the press machine is the roller conveyor 11
It is conveyed by the delivery roller 46 of the delivery station, and the ceramic plate 15 on the delivery roller 46 is transferred onto the transfer body 16 by the upward movement of the transfer body 16. The specific procedure is as follows. The transfer body 16 having the lower end engaging portion 64 supported by the movable claw 74 of the second auxiliary cylinder 24
At this time, the whole is positioned below the delivery roller 46 (state of FIG. 14A), and is raised by a minute stroke at this stage. Then, as shown in (B), the ceramic plate 15 on the delivery roller 46 is transferred onto the uppermost shelf 56 of the support frame 50 in the transfer body 16 and is lifted by a minute amount. Then new ceramic plate 15
However, the uppermost groove 54 of each support frame 50 in the transfer body 16 is
Is conveyed to the delivery roller 46, and the transfer body 16
Is again fed by the second auxiliary cylinder 24 in increments of a minute stroke. As a result, the ceramic plate 15 on the delivery roller 46 is moved to the shelf next to the support frame 50 in the transfer body 16.
Transfer over 56. The same operation as described above is continuously performed one after another, and the new ceramic plate 15 is attached to the shelves 56 on each stage of the support frame 50.
On top of one another, from top to bottom. When a plurality of (10 in this case) ceramic plates 15 are placed on each shelf 56, that is, when the second auxiliary cylinder 24 lifts the transfer body 16 by the stroke S ₂ as a whole, the delivery roller
The movable claw 74 at the lower end of the long bar 66 is engaged with the engaging portion 64 at the upper end of the transfer body 16 penetrating upwardly of the first main cylinder 20.
Lift this by stroke S _{3 to} position A ₃ by. At this time, the fixed claw 84 at the lower end of the frame 18 is in the closed position in the non-acting position, and the transfer body 16 strokes.
When it is lifted for S ₃ minutes, it is rotated 90 degrees to the working position. That is, the fixed claw 84 is in an open state, and is locked by the locking portion 64 at the lower end of the transfer body 16 to support it. At this stage, the movable claw 74 at the lower end portion of the bar 66 is closed, and then it is lowered together with the bar 66 by the stroke S ₃ . The second movable claw 74 from the lower side of the bar 66 at its descending end is engaged with the transfer body 16 supported by the fixed claw 84 at the lower end of the frame 18, that is, the lower end of the transfer body 16 at the position A _3. Stop and the bottommost movable claw 74
However, the new position A ₂
The upper ends of the transport bodies 16 of the above, and the subsequent raising motion of the bar 66 lifts them up one stroke.
After that, the same operation is repeated one after another, and the press-molded ceramic plate 15 is raised and conveyed together with the transfer body 16.

Now in this way it can be raised along the frame 18,
The transfer body 16 which has come to be supported by the fixed claw 84 at the position A _{5 in} the drawing is moved to the third auxiliary cylinder 26 by the next cycle motion.
It is lifted up by the movable claw 74 and is transferred onto the trolley 38 of the traverse device 40 waiting on it. The delivery mechanism is similar to the delivery mechanism from the movable pawl 74 of the bar 66 to the fixed pawl 84 described above.

The carriage 38 that has received the transfer body 16 horizontally moves along the rail 100 in the right direction in FIG. 4, and moves the transfer body 16 to the descending stroke at its forward end. That is, first, the movable claw 74 of the bar 69 connected to the fourth auxiliary cylinder 30 in FIG.
Support the lower end of the transfer body 16 at the position A ₇
The operation of 30 lowers this to the position of A ₈ ′ by stroke S ₆ . Then, the movable claw 74 of the fifth auxiliary cylinder 32
The lower end of the transfer body 16 at the position A ₈ ′ is supported, and this is moved down by the stroke S ₇ and brought to the position A ₈ . Then the movable pawl 74 of the sixth auxiliary cylinder 34, the conveying member at the position A ₈
16 is sent in small steps in small strokes downward, and stroke S _{8 is} lowered as a whole. During this step of feeding, the transfer body 16 is the take-out roller of the take-out station 13.
It passes through 47 (the structure is similar to the delivery roller 46) and descends, and the ten large ceramic plates 15 that have been stacked are delivered one after another onto the delivery roller 47 from the lower side. This operation is almost the reverse operation of the above-mentioned loading of the ceramic plate 15 from the delivery roller 46 to the transfer body 16, and since it is clear from the above description, a detailed description will be omitted.

Now, the transfer body 16 that has become empty after passing through the take-out roller 47 is
At the position of A ₉ , it is received by the movable claw 74 of the long bar 67, and by the reciprocating motion of the bar 67, it is greatly inscribed downward by strokes S ₉ . Then the horizontal movement from the position of the A ₁₀ by the movable pawl 74 of the seventh auxiliary cylinder 36 is transferred onto the truck 42 of the second traverse device 44, and leftward in the drawing of the carriage 42, carried at the lower end of the upstroke . After that, the ascending feed is performed again by the above-mentioned operation.

As described above, according to the present device, it is possible to smoothly convey the large porcelain plate 15 using the transfer body 16 as a medium without damaging it, and it is possible to satisfactorily connect the vertically separated strokes. Further, in addition to the above stations, the large porcelain plates 15 can be easily loaded or unloaded at an appropriately provided station.

The apparatus of this example has a feature that when the transfer body 16 is stagnant on the downstream side of the transport path, the feeding of the subsequent transfer body 16 can be automatically stopped. For example, when the transfer body 16 is stagnant at the position A 4 in FIG. ₄ , the transfer body 16 is moved at the position A _3.
If you leave the fixed pawl 84 supporting the open and the corresponding movable pawl 74 of the bar 66 closed,
Even if 66 reciprocates, the transfer body 16 at the position A ₃ cannot be sent to the position A ₄ . Therefore, even if there is some accident during the transportation, or even if the transfer body 16 is sent at a fast pitch, the transfer body 16 is always covered with the transfer body 16 without any trouble in conveyance due to clogging of the transfer body 16. It is possible to wait in a state full of conveyed goods on the upstream side of the unloading station.

The transfer body 16 (object to be conveyed 15) in the standby state serves as a stock for the subsequent process, and therefore, even if there is some accident in the previous process or the operation of the device is stopped, the process in the subsequent process is continued. Therefore, it can be carried out smoothly and the production line stop can be avoided. In this device,
The transfer bodies 16 are not filled in all the holding positions of all the transport paths, and the number of all the transfer bodies 16 is selected so as to be partially empty.

Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be configured in a form in which various changes are made without departing from the spirit of the present invention.

[Brief description of drawings]

FIGS. 1, 2 and 3 are a schematic front view, side view and plan view of a lifting / conveying device according to an embodiment of the present invention, and FIGS. 4 and 5 are the same, respectively. It is an explanatory view of the operation of the hacking mechanism. FIG. 6, FIG. 7 and FIG. 8 are a plan sectional view, a front sectional view and a perspective view of a main portion showing the coupling relationship between the cylinder, the bar and the frame in FIGS. 4 and 5, respectively. FIG. 9 is an enlarged view of a fixed claw provided on a frame and a peripheral portion thereof, and FIGS. 10, 11 and 12 are a perspective view, a front view and a plan view of a transfer body, respectively.
FIG. 13 is a plan view of essential parts showing the coupling relationship between the guide roller provided on the transfer body and the guide rail provided on the frame.
FIG. 14 is an operation explanatory view of the transfer body, FIGS. 15 and 16 are a perspective view and a plan view of an essential part of the traverse device, and FIGS. 17 (A) and (B) are the traverse device. FIG. 4 is a partially enlarged main part side view and a main part front view of FIG. 15: Large ceramic plate, 16: Transfer body 18: Frame, 20: First main cylinder 22: First auxiliary cylinder 24: Second auxiliary cylinder 26: Third auxiliary cylinder 28: Second auxiliary cylinder 30: Fourth auxiliary cylinder 32: 5th auxiliary cylinder 34: 6th auxiliary cylinder 36: 7th auxiliary cylinder 46: Delivery roller, 47: Extraction roller 50: Support frame 54: Groove, 56: Shelf 66,67,68,69,70, 71,72 73,75: Bar, 74: Movable claw 76, 78: Guide roller 80: Guide groove 82, 88: Rotary actuator 84: Fixed claw

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Shinji Ito 3-6, Koiemotocho, Tokoname City, Aichi Prefecture Inax Co., Ltd. (72) Inventor Hironobu Nagata 3-chome, Ozocho, Tokoname City, Aichi Stock Company Makino (72) Inventor Shinji Morishita 3-1-1 Ozo-cho, Tokoname City, Aichi Prefecture Makino Stock Company

Claims (1)

[Claims] 1. A transfer member for holding an object to be transferred in and out, (b) a frame for holding the transfer member so that the object can be moved up and down, and (c) a guide mechanism for guiding up and down of the transfer member. (D) a reciprocating member having a predetermined length in the up and down direction and capable of reciprocating up and down in a predetermined stroke; (e) driving means for moving the reciprocating member up and down in the predetermined stroke; A plurality of movable claws provided at a predetermined pitch on the reciprocating member, vertically moving together with the reciprocating member, and being lifted while being held by the transfer body and supporting the moving body; and (g) the movable claw, Movable pawl driving means for opening and closing between an operating position where the movable body is locked and a non-operating position where the movable body is not locked; and (h) a plurality of upper and lower stages provided at a predetermined pitch corresponding to the movable pawl. , It is possible to lock the transfer body lifted by the movable claw at each fixed position. A fixed claw for receiving and supporting the transfer body from the moving claw; and (i) fixed claw driving means for driving the fixed claw to open and close between an operating position where the transfer body is locked and a non-operating position where the transfer claw is not locked to the transfer body. An elevating / conveying device comprising: