JPH0738263Y2 - Turntable for conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention is provided between an infeed conveyor and an outfeed conveyor which are arranged in a cross shape, and when changing the conveying direction of the conveyed object. The present invention relates to a turntable for a transfer conveyor used in.

<Prior Art> FIG. 3 shows a conveyer conveyor mechanism which is used when carrying out a manual operation of changing the direction of a heavy object in an orthogonal direction and conveying it. It is provided with a feeding conveyor 20 and a feeding conveyor 21 arranged so as to be stacked, and a conveyed object (not shown) is loaded between the two conveyors 20 and 21, that is, at a position where they are orthogonal to each other. A transfer conveyor turntable (hereinafter referred to as a turntable) 23 that changes the transfer direction of the pallet 22 is disposed. Further, in this transport conveyor mechanism, the transport direction of the pallet 22 fed onto the turntable 23 in accordance with the transport direction A of the feed conveyor 20 is manually rotated to rotate the turntable 23 manually, and the transport direction B of the feed conveyor 21 is set. It is designed to change direction.

By the way, various stoppers for restricting the operation of the transfer conveyor mechanism are provided at predetermined portions of the transfer conveyor mechanism in order to safely and surely change the direction of the pallet 22 described above. That is, first, movable stoppers 24, 24 are disposed at the end of the feeding conveyor 20 to prevent inadvertent feeding of the next pallet 22, and at the beginning of the feeding conveyor 21, the pallet 22 sent back is returned. Movable stoppers 25, 25 for preventing the above are provided.
Each of the movable stoppers 24, 25 is configured to be retracted downward when the pallet 22 passes, and to project upward after the pallet 22 is passed.

Further, fixed stoppers 26, 26 with which the pallet 22 abuts are arranged at the end (upper side in the figure) of the turntable 23 on which the pallet 22 is placed, while the movable stoppers 24, 25 are provided at the start end thereof. Movable stoppers 27, 27 that operate in the same manner are provided. The movable stoppers 27, 27 hold the pallet 22 while the turntable 23 is moving, so as not to fall off. Further, reference numeral 28 in this figure is a movable stopper for positioning and fixing the turntable 23 so as to coincide with a predetermined rotation position, that is, the transport direction A of the feed conveyor 20 and the transport direction B of the feed conveyor 21. .

<Problems to be solved by the invention> By the way, in the turntable 23 constituting the transport conveyor mechanism, the pallet 22 on which the objects to be transported are loaded is changed in direction from the infeed conveyor 20 to the outfeed conveyor 21 in the orthogonal direction. In addition to the large number of parts such as the required motion regulating stoppers 24 to 28, and the complicated configuration of these components, there are disadvantages that the equipment cost increases and the failure rate increases. Also, when changing the conveying direction of the pallet 22, it is necessary to operate the various stoppers 24 to 28 in an orderly manner corresponding to the existing position of the pallet 22, but since this operation becomes complicated, an erroneous operation is induced. There is a risk of Therefore,
In order to avoid such a fear, it is conceivable to attach an electric operation control mechanism that can automate the predetermined operation of each of the stoppers 24 to 28, but if such an operation control mechanism is attached, it will be even more significant. Leading to an increase in equipment costs.

The present invention was devised in order to eliminate such inconvenience, and aims to reduce the number of parts, simplify the configuration, reduce the equipment cost, improve the operability and reduce the failure rate. The purpose of the present invention is to provide a turntable for a transfer conveyor that can be used.

<Means for Solving the Problems> A turntable for a conveyor according to the present invention comprises a fixed base having stopper holes formed at upper surface positions corresponding to the respective conveying directions of the infeed conveyor and the outfeed conveyor arranged in a cross shape. A rotary table that is rotatably disposed on the fixed table and on which the transferred object is placed, and the outer peripheral edge of the rotating table surrounds only the side surface periphery of the transferred object. A guard plate provided with a single entrance / exit through which the transported object can pass, and an advancing / retreating member arranged at a position corresponding to the entrance / exit of the rotary table, and fitted into the stopper hole. The rotary table is positioned and fixed, and at the same time, the stopper is slid on the upper surface of the fixed table.

<Operation> According to the above configuration, when the stopper provided at the position corresponding to the entrance / exit of the guard plate disposed on the rotating base is fitted into the stopper hole of the fixed base to retract downward, the guard plate Since the entrance and exit of the feeding conveyor or the feeding conveyor or the feeding conveyor will be positioned and fixed so as to coincide with each other, the object to be conveyed is carried in from the feeding conveyor to the turntable through the entrance, or, It can be carried out from the turntable to the delivery conveyor. When the stopper is pulled out from the stopper hole and the rotary base is rotated, the inner end of the stopper comes into contact with and is supported by the upper surface of the fixed base over the entire rotation range of the rotary base. , As a result of the outer end of the object protruding from the upper surface of the turntable, the object to be transferred, which is placed on the turntable and whose transport direction is changed, cannot be removed by the guard plate and the outer end of the stopper. Will be retained. Further, during the rotating operation of the turntable, a guard plate is interposed between the turntable and the end of the feed-in conveyor and the start of the feed-out conveyor. Prepared feeding and reversing will be effectively prevented.

<Embodiment> An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view showing a schematic configuration of a transport conveyor mechanism, and FIG. 2 is a side sectional view showing a schematic configuration of a transport conveyor turntable taken along line II-II in FIG. Reference numeral 1 in these drawings is a turntable having a circular shape in a plan view, and the turntable 1 and the end of a feeding conveyor 2 arranged so that their conveying directions intersect with each other, for example, at right angles. Between the starting end of the feed-out conveyor 3, that is, both conveyors 2 and 3 are provided at positions orthogonal to each other. In addition, in FIG. 1, the feed-in conveyor and the feed-out conveyor 3 are illustrated as being composed of roller conveyors, but the present invention is not limited thereto. The turntable 1 is, as shown in FIG. 2, a fixed base 4 fixedly supported on a base surface (not shown) and rotatable on the fixed base 4 via a vertical axis S. And a rotary table 5 arranged on the upper surface of the fixed table 4, and a feed-in conveyor 2 and a feed-out conveyor 3
A pair of stopper holes 4a, 4a,
4a is formed.

Further, on the rotary table 5 which is manually rotated, a carrier section 7 including a roller conveyor on which a pallet 6 carrying a transported object (not shown) is placed is arranged. The upper surface level of the carrier unit 7 is set to be the same as the upper surface level of the infeed conveyor 2 and the outfeed conveyor 3. And this turntable 5
At the outer peripheral edge of the pallet 6 mounted on the carrier portion 7.
A guard plate 8 is provided so as to surround only the side surface periphery thereof, and a single entrance / exit 9 through which the pallet 6 can pass is formed in a part of the guard plate 8.

Further, at a position corresponding to the entrance / exit 9 of the turntable 5,
A round bar-shaped stopper 10 that fits into the stopper holes 4a, 4a of the fixed base 4 and positions and fixes the rotary base 5 is provided so as to be movable back and forth along the vertical direction penetrating the rotary base 5. Therefore, when the inner end of the stopper 10 is fitted into one of the stopper holes 4a formed in the fixed base 4 and retracted downward, the entrance / exit of the guard plate 8 arranged on the rotary base 5 will be described. 9 and the conveying direction A of the infeed conveyor 2 or the conveying direction B of the outfeed conveyor 3 are positioned and fixed so as to coincide with each other. In addition, the stopper 10 is provided with stopper holes 4a, 4a.
When the rotary table 5 is pulled out from the rotary table 5 and the rotary table 5 is rotated, the inner end of the stopper 10 comes into contact with and is supported by the upper surface of the fixed table 4 over the entire range of rotation of the rotary table 5, and the outer end thereof rotates. It will protrude from the upper surface of the table 5.

Next, a manual operation procedure of the transport conveyor turntable 1 having the above configuration will be described.

First, the stopper 10 provided on the rotary table 5 is attached to the fixed table 4
Of the guard plate 8 fitted in the stopper hole 4a formed on the side of the feeding conveyor 2 and making the entrance 9 of the guard plate 8 arranged on the rotating table 5 and the feeding direction A of the feeding conveyor 2 coincide with each other. The loaded pallets 6 are loaded from the feed-in conveyor 2 onto the carrier portion 7 of the turntable 5 and placed thereon.

Next, after pulling out the stopper 10 from the stopper hole 4a on the feed-in conveyor 2 side, when the operator rotates the turntable 5 from the feed direction A of the feed-in conveyor 2 toward the feed direction B of the feed-out conveyor 3, Since the inner end of the stopper 10 comes into contact with and is supported by the upper surface of the fixed base 4 over the entire rotation range of the rotary base 5, the outer end of the stopper 10 is located above the upper surface of the rotary base 5. It projects upward and blocks the entrance 9 of the guard plate 8 so that it cannot pass through. Therefore,
The pallet 6 placed on the carrier part 7 of the turntable 5 is
The guard plate 8 and the outer end of the stopper 10 hold the stopper in place.

Further, since the guard plate 8 is interposed between the rotary table 5 and the end of the feed-in conveyor 2 and the start end of the feed-out conveyor 3, during the rotation operation of the rotary table 5, both of these conveyors 2, 3 The guard plate 8 prevents the pallet 6 from being inadvertently fed or returned.

Further, the rotation of the rotation base 5 causes a stopper.
When the stopper 10 reaches the other stopper hole 4a formed on the delivery conveyor 3 side of the fixed base 4, the stopper 10 is fitted in the stopper hole 4a by its own weight and retracts downward, and the rotary movement of the rotary base 5 is performed. To end. As a result, the entrance / exit 9 of the guard plate 8 arranged on the turntable 5 and the conveyance direction B of the feed-out conveyor 3 are aligned and fixed, and the entrance / exit 9 is opened again. The pallet 6 placed on the carrier unit 7 is sent out from the turntable 5 to the conveyor 3.

Next, after pulling out the stopper 10 from the stopper hole 4a on the feed-out conveyor 3 side, the worker feeds out the pallet 6 and rotates the empty turntable 5 from the feed-out conveyor 3 toward the feed-in conveyor 2 . And
This stopper 10 is a stopper hole 4a on the feeding conveyor 2 side.
When it reaches, the stopper 10 is fitted into the stopper hole 4a by its own weight and the rotating operation of the rotating table 5 is completed.
The entrance / exit 9 of the guard plate 8 is positioned and fixed in conformity with the conveying direction A of the feed-in conveyor 2, and the initial standby state is restored.

<Effects of the Invention> As described above, the turntable for a conveyor according to the present invention has a single entrance / exit through which the object to be conveyed can pass along the periphery of the turntable constituting the turntable, and A guard plate surrounding only the side surface of the transported object placed on the turntable is provided, and the guard plate is inserted into a stopper hole formed in the fixed table at a position corresponding to the entrance of the turntable to rotate. A stopper for positioning and fixing the moving table is provided. This makes it easy for the operator to fit the stopper into the stopper hole and retract the stopper so that the entrance of the turntable can be positioned and fixed so as to coincide with the conveying direction of either the feed conveyor or the feed conveyor. You can do it.

Further, when the operator pulls out the stopper from the stopper hole to rotate the rotary table on which the transported object is placed, the rotary end of the rotary table is rotated by the outer end of the stopper and the guard plate. The transported object inside is held so as not to fall off. Further, during the rotating operation of the rotating table, a guard plate is interposed between the rotating table and each of the infeed conveyor and the outfeed conveyor. Will be effectively blocked.

Therefore, according to the turntable for the conveyor according to the present invention, the number of parts such as various operation control stoppers can be reduced as compared with the conventional example, and the configuration can be simplified and the equipment cost can be reduced. The effect is that the operability can be greatly improved and the failure rate can be reduced.

[Brief description of drawings]

1 and 2 relate to an embodiment of the present invention, and FIG. 1 is a plan view showing a schematic configuration of a conveyor mechanism.
FIG. 1 is a side sectional view showing a schematic structure of a turntable for a conveyer taken along the line II-II in FIG. Further, FIG. 3 is a plan view showing a schematic configuration of a transport conveyor mechanism according to a conventional example. In the figure, reference numeral 1 is a turntable (conveyor turntable), 2 is a feed conveyor, 3 is a feed conveyor, 4 is a fixed base, 4a is a stopper hole, 5 is a rotary base,
6 is a pallet, 8 is a guard plate, 9 is a doorway, and 10 is a stopper.

Claims (1)

[Scope of utility model registration request] 1. A turntable for a conveyer which is interposed between a feed-in conveyer and a feed-out conveyer which are arranged in an intersecting manner, and which changes the conveying direction of the fed object to be conveyed. The rotary table is provided with a fixed base having stopper holes formed at the upper surface position corresponding to the transfer direction, and a rotary base rotatably arranged on the fixed base and on which the object to be transferred is placed. A guard plate which is provided on the outer peripheral edge of the table so as to surround only the side surface of the transported object and has a single entrance / exit through which the transported object is formed, and the guard plate which corresponds to the entrance / exit of the rotating table. A turntable for a conveyer, which is provided so as to be movable back and forth in a position, and which is fitted into the stopper hole to position and fix the rotary base while sliding on the upper surface of the fixed base. .