JP2532680Y2 - Article transfer equipment - 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 transfer apparatus used for transferring articles conveyed by a first conveyor to a second conveyor, and more particularly to a first conveyor and a second conveyor. Are preferably used when they are installed in an intersecting state.

[0002]

2. Description of the Related Art In a distribution process, articles conveyed by conveying means such as a conveyor are sorted and conveyed to another conveyor, or conversely conveyed and conveyed. In the case of merging, it is necessary to transfer the conveyor according to the empty state of the conveyor to be merged. In addition, when transferring, high-speed transfer is required in order to improve handling, and furthermore, damage to articles must be prevented. Therefore, conventionally, an article transfer device as shown in FIGS. 5 and 6 has been used.

FIG. 5 schematically shows an example of a conventional article transfer apparatus 1. The article transfer apparatus 1 pushes up a plurality of rollers 2 and rollers 2 between roller conveyors 3 as shown by dotted lines. It comprises a cylinder 4 and the like. When the articles 6 conveyed in the direction of arrow a by the conveyor 5 are transferred onto the conveyor 3, the cylinder 4 is driven to push up the plurality of rollers 2 between the conveyors 3, and a part of the rollers 2 is moved to the surface of the conveyor 3. Put out above. As a result, the article 6 rides on the roller 2 from the conveyor 5, moves in the direction of arrow a as it is, and hits the stopper 7 and stops. Next, the cylinder 4 is driven to lower the roller 2 to the position shown by the solid line. When the roller 3 is driven, the article 6 is conveyed by the roller 3 and the transfer of the article 6 is completed.

[0006] In the configuration shown in FIG.
When the articles 9 on the conveyor 5 are transferred to the conveyor 3 instead of the belt 9, the cylinder 4 is driven to push the belt 9 up between the rollers 2. After the article 6 hits the stopper 3 and stops, the belt 9 is lowered to the position shown by the solid line and transported by the roller 3.

Japanese Patent Publication No. Sho 62-46401 discloses that
A high-speed feeder acting as a transfer device is disclosed. That is, when the articles conveyed by the merging conveyor are transferred to the unloading conveyor, the intermittent feeding device provided to extend to the merging conveyor is pushed up so that the high-speed feeding machine and the merging conveyor can be conveyed. Then, the articles conveyed by the merging conveyor are transferred to an unloading conveyor via an intermittent feeding device and a high-speed feeding machine. On the other hand, when the articles are not transferred, the intermittent feeding device is lowered to form a step with the high-speed feeding machine, and the conveyance of the articles is stopped.

[0006]

The above-described conventional transfer apparatus or the combination apparatus of the high-speed feeder and the intermittent feeder described above is used for raising and lowering rollers and the like when transferring articles. Means are essential. In addition, the driving source of the elevating means must be provided separately from the driving source of the conveying means such as a conveyor, and cannot be shared.
Further, the driving direction of the lifting / lowering means is different from the driving direction of the conveying means such as a conveyor, so that transfer control is difficult. For this reason, the conventional transfer device has a large number of problems, such as a complicated structure, and a complicated maintenance because of the provision of the elevating means.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide an article transfer apparatus which can transfer articles quickly and easily with a simple structure. .

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to provide a method in which an article placed and conveyed on a first conveyor is transferred to a second conveyor.
In the article transfer device for transferring the article on the first conveyor, the article is positioned at a level higher than the article mounting surface of the first conveyor, and the conveyance of the articles placed on the first conveyor is stopped by stopping the rotation. A first roller that acts as a stopper and causes the article to ride on and convey by rotation of the first roller; and a conveyance stop state when the rotation of the first roller is stopped, and the first roller when driving the first roller. Transport means for transporting the articles riding on the vehicle, and positioned at a level higher than the article placement surface of the second conveyor, and the rotation stops and rotates in synchronization with the operation of the first roller and the transport means. And a second roller for extruding and transferring the article onto the second conveyor.

[0009]

In other words, the articles placed on the first conveyor are transferred to the second conveyor.
When the transfer is not performed on the conveyor, the article transfer device is stopped to drive, the article hits the first roller, the conveyance is stopped, and the transfer is not possible because the article is not transferred to the article transfer device. On the other hand, when performing the transfer, the first roller rotates by driving the article transfer apparatus, and the article is ridden and conveyed to the conveying means, and then pushed onto the second conveyor by the second roller. Become like Therefore, there is no need to provide an elevating mechanism in the transport path for transferring the articles to control the transfer and the stop of the transfer, so that the article transfer apparatus can be simplified and the article transfer can be reliably performed. it can.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an article transfer apparatus to which the present invention is applied will be described below with reference to FIGS. FIG. 1 is a schematic plan view showing the positional relationship between the article transfer device and the conveyor, FIG. 2 is a schematic side view, and FIGS. 3 and 4 are schematic side views illustrating the article transfer operation. .

First, the positional relationship between the article transfer device 11 and the conveyor will be described with reference to FIGS. The article transfer device 11 includes a stopper roller 12 corresponding to a first roller according to the present invention, a supply conveyor 13 corresponding to a conveying unit according to the present invention, and a transfer roller 14 corresponding to a second roller according to the present invention. It is constituted by. Motor M
Is a common drive source for the stopper roller 12, the supply conveyor 13, and the transfer roller 14, and the driving force of the motor M is
5, and is transmitted from the supply conveyor 13 to the stopper roller 12 and the transfer roller 14. That is, the motor M and the stopper roller 12, the supply conveyor 13, and the transfer roller 14 are configured to interlock. The article transfer device 11 is installed between a transport conveyor 16 corresponding to a first conveyor and a merging conveyor 17 corresponding to a second conveyor so as to extend the transport conveyor 16.

The article transfer device 11 has the following remarkable devices. First, as will be clearly described in the operation description to be described later, no lifting mechanism is provided. The second is the pulley Ma of the motor M,
By adjusting the radius of the pulley 13a of the supply conveyor 13, the pulley 12a of the stopper roller 12, and the pulley 14a of the transfer roller 14, the traveling speed of the supply conveyor 13 is increased with respect to the rotation of the stopper roller 12, so that the supply conveyor 1
That is, the rotation of the transfer roller 14 is increased with respect to the traveling speed of No. 3. Third, the stopper roller 12 is positioned so as to be level with respect to the article mounting surface of the transport conveyor 16, that is, the upper surface shown in FIG.
7, the transfer roller 14 is positioned so as to be at a height, and the upper surface of the supply conveyor 13 is further positioned so as to be lower with respect to the stopper roller 12 and the transfer roller 14.

Next, with reference to FIGS. 3 and 4, description will be given of the article transfer operation and the operation and effect of the above-described device. The article 20a conveyed by the conveyor 16 is separated from the next article 20b by the speed difference between the conveyor 16 and the stopper roller 12, and is placed on the supply conveyor 13. The motor M is controlled to stop rotating until the conveyer 17 becomes empty, and the stopper roller 1 is stopped.
2. The supply conveyor 13 and the transfer roller 14 are stopped. Therefore, the tip of the article 20b is connected to the conveyor 1
6, the stopper roller 12 is in contact with the stopper roller 12, but is not pulled up because the rotation of the stopper roller 12 is stopped.

On the other hand, when the conveyer 17 is vacant and the articles 20a can be transferred, the motor M is energized and driven to rotate. The operation timing of the motor M can be controlled by connecting the sensor for detecting the empty state of the merging conveyor 17 and the motor M via an appropriate control system. By the operation of the motor M, the stopper roller 12, the supply conveyor 13, and the transfer roller 14 are simultaneously rotated in directions indicated by arrows in FIG. As a result, the article 20b stopped by the stopper roller 12 is changed to the stopper roller 1 as shown by a virtual line in FIG.
The stopper roller 12 is lifted up and rides on the stopper roller 12. Then, when more than half of the article 20b rides on the stopper roller 12, the article 20b inclines on the supply conveyor 13 because the supply conveyor 13 is set low with respect to the stopper roller 12.
As described in the second invention, the rotation of the supply conveyor 13 is set to be faster than the rotation of the stopper roller 12. For this reason, when the lower end of the article 20b hits the supply conveyor 13 due to the inclination, the article 20b is pulled at high speed by the supply conveyor 13, and the transfer from the transport conveyor 16 to the supply conveyor 13 is performed at high speed.

Next, transfer of the article 20a placed on the supply conveyor 13 will be described. Supply conveyor 1
Since the rotation of the transfer roller 3 and the transfer roller 14 starts at the same time, the article 20 a is conveyed at a high speed by the supply conveyor 13 in the direction of the transfer roller 14, and is applied to the transfer roller 14.
As described above, since the rotation of the transfer roller 14 is set at a high speed with respect to the rotation of the supply roller 13, the article 20
a is pulled up at a high speed by the transfer roller 14 at the same time as being applied.

When the article 20a is transferred on the transfer roller 14 by half or more, the article 20a is inclined on the joining roller 17 as indicated by a virtual line in FIG. At this time, since the lower end of the rear end of the article 20a is hung on the transfer roller 20a, the article 20a is continuously pushed by the transfer roller 14 in the direction of the merging conveyor 17. Moreover, since the transfer roller 14 is set to high-speed rotation,
The articles 20a are pushed out in the direction of the conveyer 17 vigorously, so that the articles 20a slide on the conveyer 17 even after leaving the transfer roller 14. Then, the stop comes into contact with the guard rail 18 also serving as a stopper, and stops while being positioned on the merging conveyor 17. The transfer of the articles 20a is completed as described above, and the articles 20a are merged by driving the merging conveyor 17 in the vertical direction in FIG.

Here, regarding the positional relationship between the articles 20a and 20b, the transport speed increases in the flow direction of the articles 20a and 20b, in other words, in the transport direction. The time during which the article 20a is transferred onto the merging conveyor 17 is shorter than the time during which the article 20a is transferred. Therefore, the article 20b is shown in FIG.
a until the article 20 is transported to the position shown as a.
The transfer of “a” is completed. Therefore, assuming that the transfer operation is completed when the transfer of the article 20a is completed and the rotation of the motor M is stopped, the article 2 is positioned at the position of the article 20a shown in FIG.
0b is conveyed and stands by in a state. In addition,
When the article 20b is transferred after the article 20a, the motor M may be continuously rotated.

As is apparent from the transfer operation described above, in this embodiment, it is not necessary to raise and lower each of the rollers 12, 14 and the supply conveyor 13, and therefore, there is no lifting mechanism. Also, as described in the second device, the article 20
a, the conveying speed is set to be high according to the conveying direction of 20b, and a height difference is provided between each roller and the conveyor as described in the third device. Despite the absence of the stopper, a desired space can be provided between the articles. Also, since the articles to be transferred are transferred onto the conveyer 17 while pushing the articles,
There is no need to push up a roller or belt between the conveyers as described in the conventional example to move the article.

The sensor for determining whether or not there is an empty space on the merging conveyor 17 can be easily detected by, for example, an optical sensor or the like. A loading operation can be performed.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above. For example, the height difference between the rollers 12, 14 and the supply conveyor 13 may be eliminated, and a conveyor may be used instead of the rollers 12, 14. Further, in the above embodiment, the case where the article transfer device 11 is provided on one side with respect to the merging conveyor 17 has been described. However, the present invention is such that the article transferring apparatus 11 is interposed between the merging conveyor 17 as shown by the imaginary line in FIG. The mounting devices 11 may be installed so as to face each other.

[0021]

As described above, according to the present invention, the stopper roller positioned between the conveyor and the merging conveyor at the surface level with respect to the article mounting surface of the conveyor, and at a higher speed than the stopper roller Set feed conveyor,
An article transfer device is provided which is set at a speed higher than that of the supply conveyor, and which is constituted by transfer rollers positioned at a surface height with respect to the article mounting surface of the merging conveyor. According to the above configuration, when transferring the articles on the transport conveyor, the articles can be transferred by driving the article transfer device to push them out onto the merging conveyor. Can be stopped, so that the article transfer is reliably performed. . In addition, there is no need for an elevating mechanism or the like for transferring or stopping the transfer, so that the apparatus can be simplified and maintenance is facilitated.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an article transfer device according to an embodiment of the present invention.

FIG. 2 is a schematic side view of the article transfer device.

FIG. 3 is a schematic side view illustrating the transfer of an article.

FIG. 4 is a schematic side view illustrating the transfer of an article.

FIG. 5 is a schematic structural view illustrating an example of a conventional article transfer device.

FIG. 6 is a schematic structural view illustrating another example of a conventional article transfer device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Article transfer apparatus 12 Stopper roller 13 Supply conveyor 14 Transfer roller 15 Belt 16 Conveyor 17 Merging conveyor 18 Guard rail 20a, 20b Article M motor

Claims (1)

(57) [Scope of request for utility model registration] 1. An article transfer apparatus for transferring an article placed and conveyed on a first conveyor onto a second conveyor, wherein the article is transported to a height higher than an article mounting surface of the first conveyor. A first roller that is positioned and acts as a stopper that stops the conveyance of the article placed on the first conveyor when the rotation is stopped, and that rotates and drives the article to carry the article; and A conveyance unit that is in a conveyance stop state when the rotation is stopped, and conveys an article riding on the first roller when the first roller is driven;
The second conveyor is positioned at a level higher than the surface on which the articles are placed, and is stopped and rotated in synchronization with the operation of the first roller and the transporting means, and the articles are placed on the second conveyor. An article transfer device, comprising: a second roller for extruding and transferring.