JPH0141566B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION ΓIndustrial application field
The present invention relates to a conveyance device that efficiently conveys articles to a predetermined position by a conveyor 1 while aligning the orientation of the articles.

ΓPrior art As this type of article conveyance device, the
Publication No. 29370 "Transport device for packed eggs"
is publicly known.

In the above-mentioned conveyance device, when the conveyed goods (packed eggs) are transferred from the multiple rows of standby conveyors to the high-speed conveyor, the conveyor is only used when there is room for the conveyed articles to fit between the conveyed articles on the high-speed conveyor. The conveyed article is driven to be transferred from the standby conveyor to the high-speed conveyor so as not to come into contact with the conveyed article on the high-speed conveyor.

ΓProblems to be solved by the invention In the above-mentioned conveying device, since the conveyed articles are sent to the conveyor that is operating at high speed, the mutual interval between the conveyed articles on the high-speed conveyor is extremely large compared to the area occupied by the conveyed articles. When the transport efficiency is poor, and the time required to send the packs to the high-speed transport conveyor is at the bare minimum, the packs collide with each other on the high-speed transport conveyor and are pushed together, causing the packs to turn sideways or diagonally. There are drawbacks such as unevenness.

Means for Solving the Γ Problem The present invention provides a third conveyor 3 for transferring the articles on a plurality of standby conveyors 2 onto the conveyor 1, which is connected to each standby conveyor 2, While the conveyed article is waiting in the waiting area B of the waiting conveyor 2, and when the limit switch is activated, the conveyed article is placed in the incoming article area A at a predetermined relative position where the waiting area and the infeed area A face each other. If there are no articles, the conveyor 1 is stopped, and under the above conditions, the conveyor 1 is operated when there is an article to be conveyed in the feeding area A that faces the waiting area B, and when there is an article to be conveyed in all the feeding areas A. a first control means 11 for controlling to stop the waiting conveyor 2 when there is an article to be conveyed in a predetermined waiting area B on the waiting conveyor 2; and stopping the waiting conveyor 2 when there is no article to be conveyed in the waiting area B; The second conveyor 2 is configured to control the standby conveyor 2 to operate at least when the third conveyor 3 starts operating even if there is an article to be conveyed on the conveyor B.
The control means 12 normally stops the third conveyor 3 and stops the third conveyor 3 when there is an article to be conveyed in the waiting area B on the standby conveyor 2 and there is no article to be conveyed in the feeding area A of the conveyor 1. A control device 10 is provided, which includes a third control means 13 for starting and controlling the third conveyor 3 to stop when the transfer of the conveyed articles to the feeding area A is completed, and when the conveyor 1 is stopped, the standby conveyor 2 is stopped.
By feeding the conveyed articles further, the distance between the conveyed articles on the conveyor 1 is minimized.

Effect of the Γ Invention The conveyor 1 is rotationally driven by the rotation of the first motor 5, and its stop position is determined by the operation of the first sensor (limit switch) 14 such that the feeding area A is located on the extension line of the waiting conveyor 2. Stop timing is set. When a conveyed article is detected on a predetermined waiting area B of the waiting conveyor 2, the waiting conveyor 2 stops. When the conveyor 1 and the standby conveyor 2 are stopped and there is no article to be conveyed in the feeding area A that includes the conveyor 1 and the third conveyor 3, the standby conveyor 2 and the third conveyor 3 are operated, and the conveyor is moved from the standby conveyor 2 to the conveyor. The article to be transported is transferred to the feeding area A above 1. When the transport of the articles to the transport area A is completed, the third conveyor 3 stops, and the transport conveyor 1 resumes operation.

Γ Example The present invention is similar to known conveyance devices in that a plurality of standby conveyors 2 are provided for a single conveyor 1, but the terminal end of the standby conveyor 2 is placed adjacent to the conveyor 1, and a third The conveyor 3 is disposed within the conveyance surface of the conveyor 1, with the conveyor 1 interposed therebetween. In the embodiment, the standby conveyor 2 is arranged in a direction perpendicular to the transport conveyor 1, and the third conveyor 3 also has its transport direction aligned with the transport conveyor 1.
Although the direction is perpendicular to the direction shown in FIG. The orthogonal arrangement as in the embodiment is advantageous, especially when the articles to be conveyed are rectangular in shape, since the distance between the articles to be conveyed on the conveyor 1 can be reduced and the occupied area can be reduced.

With reference to FIGS. 2 to 5, the conveyor 1
The conveyor plates 4a in the form of strips are arranged in the central part Q of the conveyance surface in a direction orthogonal to the conveyance direction, and each conveyor plate 4a is connected by a chain (not shown), and the chain is wound between a driving sprocket and a driven sprocket and driven. The sprocket is driven by the first motor 5 to circulately drive the conveyor plate 4 in the direction of arrow A, and the partition plate 6 is fixed to the conveyor plate 4a every predetermined number of conveyor plates 4a.
and the partition plate 6 between the conveyed articles [for example, 30 pieces (5×
6) Hard synthetic resin container (tray) for storing eggs]
The article M is placed thereon and is configured to be transported in the direction of the arrow as the transport plate 4a moves. Conveyor plates 7 are located on both sides of the conveyor plate 4a.
is fixed to the conveyor frame 1a.

The standby conveyor 2 moves the conveyance plate 4b in the direction of the arrow [conveyor 1
side], the transport plate 4b
It is constructed similarly to the conveyor 1 so that the upper conveyed article M' is conveyed in the direction of arrow B.

The third conveyor 3 is located on an extension line of the standby conveyor 2, is disposed in place of the conveyance plate 7 on both sides P of the conveyance surface with the conveyor 1 in between, is driven by a third motor 9, and is driven by a third motor 9 to convey articles. M'' is transferred in the direction of the arrow R', that is, so as to be placed on the feeding area A.The third conveyor 3 consists of a pair of conveyors 3a and 3b, and the third motor 9 controls one of the conveyors 3b. The other conveyor 3a is driven by the rotational force of the third motor 9 transmitted through the chain 3c.

Next, the control device 10 will be explained.

A first sensor for causing the transport conveyor 1 to stop rotating at a predetermined stop timing [timing at which the transport conveyor 1 is stopped in a relative positional relationship that makes the feeding area A of the transport conveyor 1 correspond to the waiting area B of the waiting conveyor 2] (limit switch)
14 [For example, when the partition plate 6 and the integral locking piece come into contact and operate the limit switch, the first motor 5
immediately stops, thereby causing the transport conveyor 1 to stop in a relative positional relationship that positions the feed area A on the extension line of the waiting conveyor 2], and the transported article M' is present in the waiting area B at the end of the waiting conveyor 2. A second sensor (photo sensor) 15 for detecting whether the article M or
A third sensor (photo sensor) 16 for detecting the presence of M'', and a tray stop operated by the conveyed article M'' carried by the third conveyor 3 when the conveyed article M'' has been transferred to a predetermined position. It is composed of a plate 17, a fourth sensor (limit switch) 18 that is activated by contact with the tray stop plate 17, and a microcomputer or electronic switch circuit 20 in the control panel 19, and the microcomputer or electronic switch circuit 20 includes: It is programmed to operate according to the flowchart shown in FIGS. 4A, B, and C, and when the conveyed article is waiting in the waiting area B of the waiting conveyor 2 and the limit switch is activated, the conveyor 2 faces the waiting area B. In order to stop the conveyor 1 when there is no article to be conveyed in the feed area A, and to operate the conveyor 1 when there is an article to be conveyed in the feed area A under the above conditions and when all the third conveyors 3 are stopped. A first control means 11 for controlling stops the waiting conveyor 2 when there is an article to be conveyed in a predetermined waiting area B on the waiting conveyor 2, and stopping the waiting conveyor 2 when there is no article to be conveyed in the waiting area B and stopping the conveying article in the waiting area B. A second control means 12 for controlling the standby conveyor 2 to operate at least when the third conveyor 3 starts operating even if there is an article to be transported, and a standby area on the standby conveyor 2 for normally stopping the third conveyor 3. When there is an article to be conveyed in B and there is no article to be conveyed in feed area A on the conveyor 1, the third conveyor 3 is activated and the transfer of the conveyed article to the feed area A is completed, and the third conveyor 3 is activated.
Third control means 1 for controlling to stop
Contains the functionality of 3.

Next, with reference to FIGS. 5A to 5F, the transporting action of the transported article by the transporting device of the present invention will be described.

(a) The conveyor 1 is circularly driven by the first motor 5, and the articles M on the conveyor 1 are conveyed toward the end of the conveyor 1.

(b) The standby conveyor 2 is driven in circulation by the second motor 8, and the articles M' on the standby conveyor 2 are conveyed toward the standby area B at the end of the standby conveyor 2.

(c) When the transported article M' reaches the waiting area B, the waiting conveyor 2 stops.

(d) In the state of (c) above, the conveyed articles M or
M" does not exist (feeding area A is "empty")
), the position facing the waiting area B, that is, the waiting conveyor 2 is moved by the operation of the first sensor 14.
The conveyor 1 is stopped at a timing when the feed area A is positioned on the extension line of the conveyor 1.

(e) The second motor 8 and the third motor 9 rotate, and the standby conveyor 2 is again driven in circulation, and the third conveyor 3 is also driven in circulation, and the conveyed article M'' is transferred to the feeding area A.

Note that if there is an "empty" feeding area A and a plurality of standby conveyors 2 exist corresponding to the feeding area A, it is also possible to work on a plurality of conveyed articles at the same time.

(f) When the transfer of the conveyed articles to the feeding area A is completed, the third conveyor 3 stops rotating, and the conveyor 1 circulates.

The conveyed articles M'' in the feed area A are conveyed by the conveyor 1 in the direction of arrow A, that is, toward the end of the conveyor.

In this way, there are spaces at regular intervals for loading articles onto the conveyor 1, and the waiting area B
Detects the standby conveyor 2 on which the conveyed article M' is present, transfers the conveyed article M' to the feeding area A of the conveyor 1, and transfers it from the standby conveyor 2 to the conveyor 1 while the conveyor 1 is stopped. .

Effects of the ΓInvention As described above, the present invention allows the transshipment of transported articles from a plurality of standby conveyors to a transport conveyor.
This is done while the conveyor is stopped, so
Compared to the method of transferring goods onto a high-speed conveyor that rotates at a high speed, the conveyed articles can be placed close to each other on the conveyor, increasing conveyance efficiency, and the impact force exerted on the conveyed articles during reloading is extremely small. This method is particularly effective for transporting items such as fruit that may be damaged or items that need to be protected from impact during reloading, such as electronic components, and the transport items do not collide with each other. The conveyed articles are aligned in a certain direction.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an outline of a conveying device embodying the present invention. FIG. 2 is a partial plan view, and FIG. 3 is a longitudinal sectional view taken along the line S--S in FIG. 2. FIG. 4 is an explanatory diagram of the operation of the control device including a flowchart, in which figure a shows the first control means, figure b shows the second control means, and figure c shows the third control means. FIG. 5 is a schematic diagram illustrating the conveying operation according to the invention. 1... Conveyance conveyor, 2... Standby conveyor, 3
...Third conveyor, 10...Control device, 11...
First control means, 12... Second control means, 13...
Third control means, A... feeding area, B... standby area.

Claims (1)

[Claims] 1 In a conveying device that sends conveyed articles from a standby conveyor 2 to a conveyor 1 and conveys them to a predetermined position by the conveyor 1; a third conveyor 3 for transferring conveyed articles on a plurality of standby conveyors 2 onto the conveyor 1; are located on the extension of each standby conveyor 2 at the stop timing of the conveyor 1, and are arranged on both sides of the conveyor 1, and when the conveyed article is waiting in the standby area B of the standby conveyor 2, and Stop the conveyor 1 when there is no article to be conveyed in the feed area A that faces the standby conveyor 2 in the standby state at a predetermined relative position where the waiting area and the feed area A face each other by actuation of a limit switch;
Under the above conditions, when there is an article to be conveyed in the feeding area A facing the corresponding waiting area B, and when there is an article to be conveyed in all the feeding areas A, the conveyor 1
First control means 1 for controlling to operate
1, when there is an article to be conveyed in a predetermined waiting area B on the waiting conveyor 2, the waiting conveyor 2 is stopped, and when there is no article to be conveyed in the waiting area B, and even if there is an article to be conveyed in the waiting area B, the third A second control means 12 for controlling the standby conveyor 2 to operate at least when the conveyor 3 starts operating, and a second control means 12 for controlling the standby conveyor 2 to operate at least when the conveyor 3 starts operating, and for normally stopping the third conveyor 3 so that the conveyed articles are present in the standby area B on the standby conveyor 2 and are being conveyed. When there is no conveyed article in the feeding area A on the conveyor 1, the third conveyor 3 is activated and the third conveyor 3 is activated and the third conveyor
A third controller for controlling the conveyor 3 to stop it.
A conveying device including a conveyor and a standby conveyor, characterized in that a control device 10 including a control means 13 is provided.