JPH0736896Y2 - Conveyor with forwarding lane - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a circulating conveyor having a feed lane, and is particularly installed in the middle of a mixed production line where a plurality of types of works are mixed and produced. The present invention relates to a circulation type conveyor having a forwarding lane suitable for correcting production order.

[Conventional technology]

For example, in an automobile manufacturing plant, various kinds of bodies are randomly sent from a painting line to an assembly line. Therefore, in such a mixed production line,
It is necessary to collect dozens of bodies, which have been painted in the previous production process, for each product type and supply them to the assembly line, which is the next production process.

That is, in such a mixed production line, a plurality of types of works are flowed according to a predetermined production sequence, but if a defective product occurs in manufacturing during a process, the product sequence and variations in the production amount of various works are varied. May collapse. In that case, it is necessary to correct the initial production sequence between certain processes, or to absorb the variation in the amount of production and flow the work to the next process.

Therefore, conventionally, a conveyor as shown in FIG. 2 (plan view) is provided between the carry-out side of the coating line (the first-stage production process) and the carry-in side of the assembly line (the next-stage production process).
The body is transported from the painting line to the assembly line.

That is, in FIG. 2, reference numeral 10 denotes a circulating overhead type conveyor, and the conveyor 10 is provided with a loading section 1 connected to the unloading side of a coating line (not shown) and an assembling line (not shown). The loading and unloading section 2 that is continuous with the side is provided.

The waiting section 15 is formed by arranging the first waiting lane 11, the second waiting lane 12, and the third waiting lane 13 in parallel in the middle of the conveying path 14 from the loading section 1 to the unloading section 2.
And a destination designating section 3 of the conveyed article is provided near the loading section 1 of the standby section 15 of the conveying path 14.
Furthermore, while having a carry-in end at the outlet of the destination designating unit 3, the standby unit is located downstream of the carry-in end of the conveying path 14.
An annular transportation lane 16 with an exit end upstream from 15
Is provided.

In addition, each arrow in the figure indicates the transport direction.

The body loaded from the loading section 1 to the conveyor 10 is, for example, a two-door vehicle (a vehicle type) according to an instruction from the destination instruction section 3.
To the first waiting lane 11, to the second waiting lane 12 for 4-door vehicles (b vehicle types), to the third waiting lane 13 for wagon vehicles (c vehicle types), and so on. It will be transported to the lane and will wait here for instructions from the assembly line.

The destination instruction is, for example, that the number of the hanger for suspending the body of the conveyor 10 and the vehicle type of the body suspended on the hanger are input to the computer in advance at the loading section 1.
The destination designation section 3 reads the number of the hanger to designate the destination of the hanger.

When the waiting line at the destination of the body newly arrived at the destination designating section 3 is full, the body is transferred to the forwarding lane.
It is designed to wait in the forwarding lane 16 until it is transported to 16 and a vacant space is created in a predetermined waiting lane.

[Problems to be solved by the device]

By the way, in the conventional conveyor as described above, it is assumed that the waiting order in the forwarding lane 16 is, as shown in FIG. 2, the body a of the vehicle type a, the body b of the vehicle type b, and the body c of the vehicle type c.

Now, when an empty space is created in the waiting lane 12 of the vehicle type b and the body b of the vehicle type b is to be carried into the waiting lane 12 from the forwarding lane, the vehicle lane a of the vehicle type a is placed in the forwarding lane 16 before the body b. However, there is a problem that only the body b cannot be carried out from the forwarding lane 16 because the vehicle is waiting.

The present invention is intended to solve such a problem, and the forwarding lane is formed in an annular shape with the exit portion of the destination designating section as the carry-in end and the inlet section of the destination designating section as the carry-out end. By doing so, it is an object of the present invention to provide a conveyor having a transportation lane capable of carrying out only a body of a predetermined vehicle type from the transportation lane.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a conveyor having a forwarding lane according to the present invention is installed in the middle of a mixed production line where a plurality of types of works are mixed and produced, and the above-mentioned works are processed from the previous production process to the next production process. In the conveyor to be transported to the production process, the conveyor is used as a loading port for the work that is randomly loaded from the preceding production process and as a carry-out port for the work to the next production process. And a standby section interposed in the middle of the transfer route from the loading section to the unloading section, and the waiting section near the loading section. Is provided with a destination designation unit and a forwarding lane for the work, and the standby unit is configured to load only the same type of work among the plurality of types of transferred works and It is configured by arranging a plurality of standby lanes that form a standby path until the carry-out to the next production process in parallel, and the forwarding lane uses the outlet section of the destination indicating section as a carry-in end section and It is characterized in that it is formed in an annular shape with the entrance portion of the destination designating portion as the carry-out end portion.

[Action]

In the above-described conveyor having the forwarding lane according to the present invention, the work carried out from the forwarding lane receives the instruction of the destination again by the destination designating section immediately after the carrying-out, and the work which should not be carried to the standby lane, that is, the work concerned. The work that has no vacant space in the waiting lane to be received is transported to the forwarding lane again,
Therefore, only the predetermined work is carried out from the forwarding lane to the standby lane. In other words, the forwarding lane is
It acts as a waiting place for work until a space is created in the waiting lane.

〔Example〕

Referring to the drawings, a conveyor having a feeding lane as an embodiment of the present invention will be described below. FIG. 1 is a plan view thereof. The same reference numerals as those in FIG. 2 in FIG. 1 indicate almost the same members.

The circulation type conveyor 10 of this embodiment is also an overhead type, and includes a loading section 1, a unloading section 2, a first standby lane 11, and a second standby lane 11.
The standby lane 12 and the third standby lane 13 are provided in parallel with each other, and the standby unit 15 and the destination designating unit 3 are provided. Here, each of the waiting lanes 11 to 13 of 1 to 3 is loaded with the same type of body among the three types of bodies a to c that are transported, and the body is carried out until it is carried out to the next process. It constitutes a waiting lane for each vehicle type to wait.

The forwarding lane 16 is configured as follows. That is, the forwarding lane 16 causes the exit section of the destination designating section 3 to enter the loading end section.
16a and the exit end 16b at the entrance of the destination designating section 3
It is formed in a ring shape.

With the above configuration, the body loaded from the loading section 1 is directed by the destination instructing section 3 to be carried into the standby lanes 11 to 13 and waits there until a command is given from the assembly line.

Of the bodies arriving at the destination designating section 3, when the waiting lane for each vehicle type is full, it is carried into the forwarding lane 16.

When the forwarding lane 16 is also full, the conveyor 10 stops operating.

When the body arrives at the delivery end 16b of the forwarding lane 16,
When there is no body being conveyed near the destination designating section 3, the body is carried out from the forwarding lane 16 to the conveyance path 14. Then, the destination is instructed again by the destination instruction unit 3, and if there is a space in the standby lane of the destination, it is transported to the standby lane, but when the standby lane is full,
It is returned in the forwarding lane 16 again.

That is, as shown in FIG. 1, the waiting order in the forwarding lane 16 is that the body a of the vehicle type a is the head (closest to the carry-out end 16b), the body b of the vehicle type b and the body c of the vehicle type c are arranged in this order. Suppose you were out.

When a space is created in the standby lane 12 of the b model and the body b of the b model is transferred from the transfer lane 16 to the standby lane 12, the body a of the a model a, b of the b model b from the transfer lane 16 The body c of the vehicle type c is carried out to the carry-out path 14 in order. Then, the destination is checked by the destination instruction unit 3, and the body a of the vehicle type a is returned to the forwarding lane 16 again, but the body b of the vehicle type b is carried into the standby lane 12 (since there is a space in the standby lane 12). . Needless to say, the body c of the following c vehicle type is also returned to the forwarding lane 16 again.

In this way, regardless of the order of waiting in the forwarding lane 16, only the body of the predetermined vehicle type can be carried out from the forwarding lane 16 to the predetermined waiting lane of the waiting section 15.

[Effect of device]

As described above in detail, according to the conveyor having the forwarding lane of the present invention, it is possible to carry out only a predetermined work from the forwarding lane, so that a mixed production line for mixing and producing a plurality of kinds of works For example, it is interposed between two working steps, and it is possible to exert the effect of correcting the initial production sequence when the production sequence collapses in the preceding production process, and solve the problem peculiar to the mixed production line. The advantage is that

[Brief description of drawings]

FIG. 1 is a plan view of a conveyor having a transportation lane as an embodiment of the present invention, and FIG. 2 is a plan view of a conventional conveyor having a transportation lane. 1 ... loading section, 2 ... unloading section, 3 ... destination designating section, 10 ... conveyor, 11, 12, 13 ... standby lane, 14 ... conveyance path, 15 ...
Standby section, 16 ... Forwarding lane.

Claims (1)

[Scope of utility model registration request] 1. A conveyor which is interposed in the middle of a mixed production line where a plurality of types of works are mixed and produced to convey the works from a preceding production process to a succeeding production process, the conveyor comprising: A loading section as a loading port for the workpieces that are randomly loaded from the previous production process, a loading / unloading section as a loading port for the work to the next production step, and a loading / unloading section from the loading section. It is configured as a circulation type conveyor having a waiting section interposed in the middle of the conveying path to the loading section, and a work destination designation section and a forwarding lane are provided near the loading section of the waiting section. , A plurality of the standby parts that form a standby path until only the same type of work among the plurality of types of transferred works is carried in and the work is unloaded to the next production process. The waiting lanes are arranged in parallel, and the forwarding lane is formed in an annular shape with the exit portion of the destination designating section serving as a carry-in end portion and the inlet portion of the destination designating portion serving as a carry-out end portion. A conveyor equipped with a forwarding lane.