JPH04153121A - Direction changing conveyer and load arranging and sorting conveyer with conveyer - Google Patents

Abstract

PURPOSE:To provide performance of both going straight and direction change by alternately disposing multiple free rollers and ball caster trains at which multiple ball casters are disposed in parallel to an axial direction of the free rollers. CONSTITUTION:A load arrangement conveyer 1 is formed out of a pair of direction changing conveyers 7, 7 on both the sides of a ball conveyer 8. The direction changing conveyer 7 is constituted by alternately disposing two free rollers 10 and ball caster trains 12 consisting of four ball casters 11 disposed in parallel to the free rollers 10, on a frame 7a. A ball conveyer 8 is constituted by disposing ball casters 11, which are the same as those of the direction changing conveyer 7, in two lines in a transmit direction on a frame 8a. The ball caster trains 12 of the direction changing conveyer 7 is arranged in zigzag each other to prevent the multiple free rollers 10 from being on a straight line.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a conveyor device for arranging and sorting products, etc., and is particularly designed to have both straightness and flexibility. Regarding.

(Prior Art) Conventionally, as a structure of a conveyor device for guiding the movement of products, etc., for example, a conveyor device is rotatably supported between a pair of frames extending in the guidance direction of the cargo by a shaft installed between the frames. A roller conveyor is a very common example of a conveyor, in which a large number of free rollers are arranged and the load is guided between the frames of the conveyor. Because of this, there is great resistance to moving the cargo in a direction other than the guiding direction midway through the conveyor, making it inconvenient for sorting and sorting the cargo.

Therefore, as a solution to this problem, for example,
A direction change in which a pair of parallel wheel groups extending in the load guiding direction is provided, and another pair of wheel groups connected in an arc shape to each wheel group are provided to change the direction of movement of the load. machine (e.g., the Corocon direction changer made by Okura Yusoki Co., Ltd.), or a direction changer that uses multiple ball casters arranged in a square shape to enable the movement of cargo in all directions (e.g., the ball caster changer made by the same company). , or those in which the ball caster is replaced with a universal wheel (for example, the universal converter manufactured by the same company) are known.

(Problems to be Solved by the Invention) However, in the conventional device described above, in the case of a roller control direction changer, the directions in which the direction can be changed and the locations where the direction can be changed are limited due to the structure of the device, and the structure is complicated. There is a drawback.

On the other hand, ball caster converters and universal converters do not have this problem, but on the other hand, they have almost no straight movement, so the direction of movement of the load becomes disorderly, and there is a problem that they lack the ability to guide the load. Ta.

The present invention has been made in view of these points, and its purpose is to provide a means that can also have a direction change function while maintaining the function of guiding the conveyor in the straight direction.
The purpose of the present invention is to provide a conveyor with high product assortment and material handling functions.

(Means for Solving the Problems) In order to achieve the above object, the solution of the present invention is to configure a direction changing conveyor in which free rollers and ball casters are mixed.

Specifically, the means taken by the invention of claim (1) are as follows:
As shown in the figure, a conveyor for changing direction includes one or more free rollers (10) and a plurality of ball casters (11) parallel to the axial direction of the free rollers (10) on the transfer surface. It is constructed by alternately arranging one or more ball caster groups (12).

The means taken by the invention of claim (2) are the same as those of claim (1) above.
In the described invention, two free rollers (10) (1
0) and a set of bola caster groups (12) are arranged alternately.

The means taken by the invention of claim (3) is that, in the invention of claim (2), each ball caster (11) is placed at a position higher than each free roller (10) by a certain height. It was installed in

The means taken by the invention of claim (4) is to provide a sorting and sorting conveyor with a large number of ball casters (11).

The direction change conveyor according to claim (1) or (2) is arranged in parallel on both sides of a ball conveyor (8) in which... is arranged.

The means taken by the invention of claim (5) are the means taken by the invention of claim (4) above.
In the invention, the ball caster groups (12) of the bidirectional conveyor are arranged in a staggered manner.

The means taken by the invention of claim (6) are the same as those of claim (4) above.
Or in the invention of (5), each ball caster (11
), . . . are installed at a position higher than each free roller (10), . . . by a fixed height.

(Function) With the above configuration, in the invention of claim (1), in the direction change conveyor, the free rollers (
10),... straightness and pole casters (11),...
By utilizing the flexibility of ..., it is possible to obtain a high direction change function while maintaining a high straight guidance function.

In the invention of claim (2), two free rollers (10)
, (10) and one ball caster group (12) are arranged alternately, so that the balance between the guiding function in the straight direction and the direction changing function is approximately the best.

In the invention of claim (3), each ball caster (1, 1
), ... are installed at a higher position than each free roller (10), ..., so the difference in the amount of concentrated load on the contact part against the product and the amount of deformation of the support member due to structural differences can be compensated for. The overall transfer surface is kept substantially flat. In other words, the free rollers (10) on the bottom of the product during transport, and the ball casters (11)
), .

In the invention of claim (4), the high straight forward guidance function and direction change function of the direction change conveyor as described above and the flexibility of the ball conveyor (8) are utilized to arrange goods,
It provides the product sorting function necessary for a material handling conveyor.

In the invention of claim (5), since the ball caster groups (12), .
10), the number of parts where (10) are arranged in series in the width direction is reduced, and the sorting function is improved.

In the invention of claim (6), since the ball caster (11) or the free roller (10) is arranged above, the transfer surface is smoothed as described above, and smooth sorting work is ensured. .

(Example) Examples of the present invention will be described below with reference to FIGS. 1 to 3.

Figure 3 shows a part of the sorting device for shipping products installed at the product shipping port, and (1) shows the main conveyor line (CM
) to the exit parse (Bp), and a sorting conveyor (2) for arranging the products to be shipped. A cargo handling conveyor is installed to sort transported products by destination and transfer them to the above-mentioned cargo collection econ hair (1), and a loading conveyor (4) is installed in the delivery perspective (BP) to load the products onto trucks, etc. Nyuta, (
5) is the loading chute (4) and the sorting conveyor (
1) is a connecting roller conveyor that connects with. In other words, the shipped products sent from the main conveyor line (CM) to the exit are transferred to a pair of handling conveyors (2),
According to (2), after being sorted by destination, items to be loaded onto parked trucks are immediately transferred to the sorting conveyor (1).
It is turned to the side (see arrow in the figure), transferred to a loading chute (4) and loaded onto a truck. and,
Products destined for different destinations are temporarily kept on standby on the handling conveyors (2), (2) until the truck of the corresponding destination arrives.

Here, as a feature of the present invention, as shown in FIG. 1, the goods sorting conveyor (2) has a pair of direction change conveyors (7), (7) arranged in parallel on both sides of a ball conveyor (8). Each direction change conveyor (7) has two free rollers (10) on a frame (7a).
, ... and one ball caster group (12) consisting of four ball casters (11) to (11) arranged parallel to the free rollers (10), ... are arranged alternately. be. Further, the ball conveyor (8) is mounted on the frame (8a) and the direction change conveyor (
7) Ball caster (11) similar to the one above,・
・- are arranged in two rows in the transfer direction.

And a pair of left and right direction change conveyors (7).

In (7), each ball caster group (12) is arranged in a staggered manner. In other words, the number of parts where a plurality of free rollers (10), . When moving, the resistance to movement is distributed as evenly as possible.

In addition, as shown in Figure 2, each of the above ball casters (
11), ...'s highest point is each free mouth ~u (10)
, ... (For example, in the case of a combination of a 60.5ψ x 600W free roller and a 25ψ ball caster, 2.
3mt11 level difference). In other words, due to the amount of concentrated load on the contact portion and structural differences, the amount of deformation of the support member is similar to that of a ball caster (11).

In view of the fact that the free rollers (10) are larger on the . . . side than on the .

Therefore, in the above embodiment, the direction change conveyor (7
) is constructed by alternately arranging free rollers (10), . . . and ball caster groups (12), .
By utilizing the straightness of the ball casters (11) and the flexibility of the ball casters (11), it is possible to obtain a good direction change function while maintaining the straight direction guiding function.

In addition, in that case, two free rollers (10) (10)
When the ball caster group (12) and one ball caster group (12) are arranged alternately, the balance between the straight-ahead guiding function and the direction changing function is best achieved, as will be described later.

Furthermore, since each ball caster (11), . . . is installed at a higher position than each free roller (10), . The difference in the amount of deformation can be corrected, and the overall transfer surface can be kept substantially flat. That is,
Free roller (10) on the bottom of the product during transfer,...
This prevents contact with the ball caster (11), . . . , and ensures smooth transportation.

When such a direction change conveyor (7) is used to configure the goods sorting and material handling conveyors (1) and (2), the direction change conveyor (7), on both the left and right sides of the ball conveyor (8) By arranging the ball conveyor (7), it is possible to utilize the straight direction guiding function and direction changing function of the direction changing conveyor (7) as described above and the flexibility of the ball conveyor (8) to produce high-quality products. It is possible to provide a sorting and sorting conveyor with a sorting function.

In that case, there are direction changers (7), (7') on both the left and right sides.

By arranging the ball caster groups (12) in a staggered manner, free rollers (10
), (10) It is possible to reduce the number of parts that are arranged in series in the width direction, and therefore, the cargo handling performance becomes particularly good.

In this case, the ball casters (11), . . . of the ball conveyor (8) are replaced by the free rollers (10) of the direction change conveyors (7), (7).

By arranging it above . . . , it is possible to smooth the transfer surface as described above.

(Experiment example) Next, experimental examples related to the present invention will be explained.

Figures 4 to 6 show the dimensions and shapes of the conveyors of each type used to confirm the effects of the present invention, and in order,
Free roller conveyor (21), ball conveyor (22)
) and a plan view of the direction change conveyor (7) of the present invention.

Then, using each of the above conveyors, we measured the necessary pushing force when the outdoor units of air conditioners (weighing 69.97. IC 17 kg) are placed directly on the road conveyor and transported. (Unit: kg) is shown in Table 1.

In Table 1, the case where the compressor, which is heavy in the outdoor unit of the air conditioner, is installed at the front and transported is referred to as the front center of gravity side, and the case where the compressor is installed at the rear and transported is referred to as the rear center of gravity side.

From Table 1, in the case of free roller conveyor (21),
The product is conveyed smoothly in the straight direction, but when trying to change direction, the product must slide on the roller surface in the axial direction of the roller, which requires too much pushing force, making the work almost effortless. It is possible. On the other hand, in the ball conveyor (22), the pushing force when changing direction is generally lower than that of the free roller conveyor (21), but the pushing force in the straight direction is greatly increased. In addition, since the bottom of the product comes into contact with the ball caster and gets caught, there is a large amount of variation during measurement, and the product is unstable, especially when the center of gravity is set at the front.

On the other hand, in the direction change conveyor (7) of the present invention,
Although the pushing force in the straight direction is increased compared to the free roller conveyor (21), the ball conveyor (22)
The height is not large, and the pushing force when changing direction is significantly reduced compared to the free roller conveyor (21), and the results are comparable to those of the ball conveyor (22).

In particular, since there is almost no catching on the bottom of the product, stable results are obtained even when the center of gravity is placed in the front. That is, the direction change conveyor (7) of the present invention as described above
) has been shown to be effective.

(Effects of the Invention) As explained above, according to the invention of claim (1), the direction change conveyor includes one or more free rollers on the transfer surface and one or more free rollers parallel to the free rollers. Because the ball casters are arranged alternately, the conveyor utilizes the straightness of the free rollers and the flexibility of the ball casters to maintain a good straight guiding function while also having a rich direction change function. It can be done.

According to the invention of claim (2), in the direction change conveyor of claim (1), two free rollers and one ball caster group are arranged alternately.
In particular, it is possible to maintain approximately the best balance between the straight-ahead guiding function and the direction changing function.

According to the invention of claim (3), the above claim (1) or (
In the second direction change conveyor, each ball caster is placed at a certain height higher than each free roller, so the transfer surface can be maintained substantially flat, thereby preventing the end surface of the product from touching the transfer member. Products can be transferred smoothly without causing contact.

According to the invention of claim (4), since the direction change conveyor of claim (1) or (2) is arranged in parallel on both sides of the ball conveyor, the direction change conveyor has a high guiding function in the straight direction; Utilizing the direction change function and the flexibility of the ball conveyor, it is possible to create a goods sorting and goods sorting conveyor with a high product sorting function.

According to the invention of claim (5), in the goods sorting and material handling conveyor of claim (4), the ball caster groups of the direction change conveyors on both the left and right sides are arranged in a staggered manner, so that the direction changeability is improved. It is possible to reduce the number of parts where free rollers are arranged in series in the width direction, and therefore,
The functionality of product sorting will be more markedly improved.

According to the invention of claim (6), the above claim (4) or (
In the invention of 5), since the ball caster is arranged at a certain position higher than the free roller, smooth product sorting work can be ensured by keeping the transfer surface substantially flat.

[Brief explanation of drawings]

1 to 3 show embodiments of the present invention, FIG. 1 is a plan view showing a part of the goods sorting conveyor, FIG. 2 is an explanatory view showing the state of the step between the ball caster and the free roller, and FIG. FIG. 3 is a plan view showing a part of the sorting device exclusively for shipping. Figures 4 to 6 show the configuration of an apparatus for testing the effects of the present invention, with Figure 4 showing the dimensions and shape of the free roller conveyor, Figure 5 the ball conveyor, and Figure 6 the direction change conveyor. FIG. 1 Sorting conveyor 2 Sorting conveyor 7 Direction change conveyor 8 Ball conveyor 10 Free roller 11 Ball caster 12 Ball caster group patent applicant Daikin Industries, Ltd. Tsuji representative Patent attorney 1) Hiroshi (and 1 others) - 1st Figure Sorting Conveyor Material Handling Conveyor Direction Conveyor Ball Conveyor Free Roller Ball Caster Ball Caster Group Figure Figure

Claims (6)

[Claims] (1) One or more free rollers (10
), and one or more ball caster groups (12) consisting of a plurality of ball casters (11), . . . arranged parallel to the axial direction of the free roller (10) are arranged alternately. A conveyor for changing direction. (2) The direction change conveyor according to claim (1), characterized in that two free rollers (10), (10) and a set of borer casters (12) are arranged alternately. A conveyor for changing direction. (3) In the direction change conveyor according to claim (2), each ball caster (11), . . . is installed at a position higher than each free roller (10), . . . by a certain height. A conveyor for changing direction. (4) A large number of ball casters (11), . . . are arranged on both sides of a ball conveyor (8).
A goods sorting and goods sorting conveyor in which the direction change conveyors described in 1) or (2) are arranged side by side. (5) In the goods sorting and goods handling conveyor according to claim (4), a ball caster group (12) of the conveyor for bidirectional change;
A conveyor device characterized in that ... are arranged in a staggered manner with respect to each other. (6) In the goods sorting and goods handling conveyor according to claim (4) or (5), each ball caster (11) is connected to each free roller (10).
A direction change conveyor characterized by being installed at a certain height higher than the conveyor.