JPH0557578A - Conveyor with bypass control function - Google Patents

Abstract

PURPOSE:To simplify the extension of a protecting station by enabling it to set the protecting working station out of a conveyor route, in each of optional working stations, and at this setting time, making it so as to be selectively conveyed to the working station and the protecting working station on the basis of a specified ratio, in the captioned conveyor available in a sewing factory or the like. CONSTITUTION:A bypass setting means sets another working station other than the conveyor route to a protecting station doing the same operation in relation to an optional working station in the conveyor route. If so, a bypass indicating means commands a conveyor control means so as to be conveyed to the working station or protecting working station by this indication. The conveyor control means performs conveyance control according to the conveyor route based on a belt number read by a number reading means while it controls it in conformity with this bypass indication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conveys a carrier from a work station that has completed a work to a next work station in accordance with a transport order preset according to a unique carrier number assigned to the carrier. Concerning a carrier device.

[0002]

2. Description of the Related Art Conventionally, in a garment factory or the like, various carrier devices have been proposed for automatically carrying a carrier holding a work-in-process material such as a product to be sewn to a work station arranged along a carrier rail. ing.

In this type, the transport order is stored for each transport number of each transport body, the transport body number attached to the transport body is read, and the work is performed in accordance with the transport order corresponding to the transport body number. The carrier was carried from the finished work station to the next work station.

In general, the time required for the work at each work station is often not the same due to the difference in the work content of each work process for the work piece. Therefore, when transporting multiple conveyors on the same route, a work station with a short working time may have an idle time for work, and conversely, a work station with a long working time may accumulate work pieces. It is not preferable in terms of transport control because it is lost.

For this reason, it is known that a bypass rail is provided for a predetermined work station so that it can be transported to a support work station for performing the same work as that work station. For example, when the stock of transporters becomes large, each work can be performed by connecting the bypass rail to the transport rail and transporting it to the support work station, and dividing one work process between the original work station and the support station. This is to equalize the pitch time in the process.

[0006]

However, in the prior art, in order to provide a support station for a certain work station, a bypass rail for connecting the work station to the support station is required.

In order to enable bypass setting for any work station in the transport path, it is necessary to newly provide a support station corresponding to all work stations and connect them by a bypass rail. However, the support station and the bypass rail are used only when the bypass is set, and are not necessary during normal transfer control.

Further, in many cases, bypass control is generally performed only on a part of the transport path. Nevertheless,
Providing a support station and a bypass rail to each support station corresponding to all the work stations requires a large number of parts to be added, resulting in a very high cost.

Therefore, in the case of carrying control based on a certain carrying route, it is conceivable to use a work station not corresponding to the carrying route as a support station.
However, if the transport route changes, the work stations that need to be bypassed also change. Then, it is necessary to select a support station each time and change or reattach the length of the bypass rail for transporting to the support station, which is not easy.

Therefore, the present invention has an object to solve the above-mentioned problems, and to add a work station other than the transfer route to an arbitrary work station in the transfer route without adding any parts. (EN) It is an object to provide a transfer device with a bypass control function, which is set as a support work station for performing the same work as a work station and is capable of bypass transfer.

[0011]

In order to achieve such an object, the present invention has the following constitution as a means for solving the problem. That is, a plurality of work stations are provided along a transport rail for transporting the transport body, and a transport mechanism capable of transporting the transport body to each of the work stations according to a transport route for performing work, and a corresponding work station are provided. The number reading means for reading the unique carrier number given to the carrier, and the carrier mechanism by controlling the carrier mechanism, according to the carrier route preset according to the carrier number, In a transfer device having a transfer control means for transferring a work station that has finished work to the next work station, with respect to any work station in the transfer route, any of the work stations other than the transfer route Bypass setting means for setting as a support work station for performing the same work as the work station; When the protection work station is set to the next destination work station based on the above, the transfer to the work station or the transfer to the support work station in place of the work station is performed according to a predetermined ratio. And a bypass instructing unit for instructing the transfer control unit.

[0012] Further, a transport ratio which is a ratio of the number of transport bodies to be transported to the work station and the number of transport bodies to be transported to the support work station set for the work station can be arbitrarily set. By providing the setting means, the pitch time can be adjusted more accurately in each work process.

[0013]

In the transporting apparatus with a bypass control function of the present invention having the above-mentioned structure, the bypass setting means sets a work station other than the transporting path to any work station in the transporting path as well as the arbitrary work station. It will be set up as a support work station to carry out the work of.

If the bypass instruction means sets a support work station for the next destination work station based on the transfer route, the bypass work means transfers the work station to the work station or the work station according to a predetermined ratio. The transfer control means is instructed to transfer to the support work station instead of the transfer control station, and the transfer control is executed.

Further, since the carrying ratio can be arbitrarily set by the carrying ratio setting means, it is possible to adjust the number of carriers to be carried to the work station and the number of carriers to be carried to the support work station set for the work station. As a result, the pitch time can be adjusted more accurately in each work process.

Furthermore, the conveyance control according to the bypass instruction of the present invention can be realized only by software control, and it is not necessary to add special parts such as the conventional bypass rail.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 2 to 4, the distribution mechanism 1 is installed in a garment factory or the like with a space therebetween, and each distribution mechanism 1 is provided with a column 3 standing upright on a floor surface 2. .. The support shaft 4 is erected on the upper end of the support column 3 via a mounting base 5, and a support plate 6 is fixed to the upper end thereof.

The station rail support frame 7a is supported and fixed to the upper surface of the support plate 6 at an intermediate portion thereof. The pair of parallel bridge rail support frames 7b are supported and fixed by straddling the support plates 6 of the adjacent distribution mechanisms 1. On the other hand, a work station ST is provided around the distribution mechanism 1.
Are arranged, and the station rail support frame 7a extends from the bridge rail support frame 7b toward the work station ST. A part of the work station ST is arranged as a completion station STa for removing a work cloth or the like from a carrier 36 described later and a loading station STb for mounting a new work cloth cut on the carrier 36. 2, the distribution mechanism 1 at the right end of FIG.
It is provided around the.

The other work station ST is formed by a sewing device such as a sewing machine arranged below the station rail 11. Further, with respect to these work stations ST, the respective work stations ST can be distinguished by the numbers attached after ST such as ST1, ST2, ....

A pair of parallel bridge rails 10 suspended and supported by a plurality of suspension fittings 9 are provided on the supporting frames 7a and 7b between the distribution mechanisms 1. Further, a plurality of horseshoe-shaped station rails 11 for the work stations ST arranged around the distribution mechanism 1 are provided, and the bridge rail 10 and the station rail 11 constitute a transportation rail 8.

At one end of the bridge rail 10 and one end of the station rail 11, the loading section 10 to the sorting mechanism 1 is provided.
a and 11a are formed on the other end of the bridge rail 10 and the other end of the station rail 11, respectively, and carry-out parts 10b and 11b from the distribution mechanism 1 are formed, and these carry-in / carry-out parts 10a, 11a, 10b, and 11b are distributed. Mechanism 1
At the same height position around the circumference of
It is arranged every other degree.

On the other hand, as shown in FIGS. 3 and 4, a rotary body 41 is rotatably supported on the support shaft 4 of the distributing mechanism 1. Then, the loading / unloading parts 10a, 11a, 1
A plurality of (eight in this embodiment) sorting arms 44 are radially projected and fixed at predetermined angles (in this embodiment, 45 degrees) so as to face 0b and 11b.

A servo motor 47 for rotating the arm, which can rotate in the forward and reverse directions, is mounted on the support plate 6. Then, by rotating the servo motor 47 in the forward direction or the reverse direction, the rotating body 41 is rotated, and the sorting arm 44 holding the carrier 36 is rotated to a position facing the predetermined bridge rail 10 or station rail 11. It is configured to be movable.

In addition, the endless first chain 20 is provided by a plurality of chain guides 22 provided on each hanging fitting 9,
It is stretched along the bridge rail 10. On the other hand, an endless second chain (not shown) is stretched along the station rail 11 by a plurality of chain guides (not shown) provided on each hanging fitting 9.

When the chain driving motor 26 mounted on the support plate 6 of the distribution mechanism 1 is rotated,
The first chain 20 is rotated in the counterclockwise direction in FIG. 3 along the bridge rail 10, and the second chain is rotated in the same direction along the station rail 11 as the rotary shaft 12 rotates.

As a result, the carrier 36 on the bridge rail 10 or the station rail 11 is guided along the bridge rail 10 or the station rail 11 with the engagement ring 38 engaged with the first chain 20 or the second chain. And is moved in the direction of the arrow in FIG.

On the other hand, as shown in FIG. 4, the carrier 36 is formed in a hanger shape so that an article such as a product to be sewn can be suspended. A roller (not shown) rolling on the rails 10 and 11 is rotatably supported, and a pair of engagement wheels having a plurality of engagement protrusions on the outer periphery in a state where a friction brake is always applied. 38 is rotatably supported. The carrier 36 has the bridge rail 10 with the engagement wheels 38 engaged with the first chain 20 or the second chain.
Alternatively, it is configured to be conveyed and moved along the station rail 11 in the arrow direction of FIG.

Further, as shown in FIG. 3, a number reading device 39 is attached to the carrying-in portions 10a, 11a of the carrying-in bridge rail 10 and the station rail 11 by means of hanging metal fittings 9. Then, the carrier 36 is the bridge rail 10.
Or the number reading device 39 along the station rail 11
When it is transported to a position corresponding to, the movement of the transport body 36 is temporarily stopped by contact with a stopper (not shown).

At this time, the engagement wheel 38 is rotated against the brake. In this state, the number is read by the code reader (not shown) attached to the side surface of the engagement wheel 38 of the carrier 36 for identifying the carrier. Details of the distribution mechanism 1 are described in JP-A-3-56323, and the carrier 36
Since the details of the structure, its moving mechanism, and number reading are described in JP-A-3-61211, further description will be omitted.

Next, the electric system of this embodiment will be described with reference to the block diagram shown in FIG. The respective devices are driven and controlled by the electronic control circuit 60 to carry the carrier 36.
The electronic control circuit 60 includes a well-known CPU, ROM, RA
It is configured with M as the center of the logical operation circuit, and is provided with an input / output circuit for performing input / output with an external device.

The electronic control circuit 60 includes a number reading device 39.
Alternatively, a signal is input from various switch groups 70 such as a closing switch that is operated at the end of work to generate a closing signal. On the other hand, based on these signals and the data in the ROM and RAM, a drive signal for driving the servo motor 47 and the like are output.

Further, one electronic control circuit 60 is provided for each distribution mechanism 1, and the plurality of electronic control circuits 60 are connected to the host computer 100 so that the host computer 100 can control the entire system. It is made to be done. The host computer 100 has a keyboard 111 and a mouse 11 for data input.
3, a display 115 for outputting data, and a printer 117 are respectively connected. Then, it is possible to edit the transportation route described later.

Further, inside the host computer 100, an RA for storing the edited transport path is stored.
M101 is provided. Next, the operation of this embodiment will be described. First, the transport path editing process will be described with reference to the flowchart of FIG. 6 and FIG. 7. FIG. 7 shows the transport path editing screen displayed on the display 115.

At each work station ST, the carrier 36
Although various operations are performed on the workpieces, the numbers of the work stations ST to which the conveyor 36 is conveyed are sequentially input according to the order of the work steps performed on the workpiece (step 100,
Hereinafter, simply referred to as S100. The same applies below. ), RAM101
Will be stored in the memory (S110).

Then, every time the station number is stored in the RAM 101 one by one, it is judged whether or not the input of the transport path is completed (S120). In this embodiment, the number "a" of the completion station STa is input to the RAM.
When it is stored in 101, it is determined that the route input is completed (S120: YES), and the process proceeds to the next process. Therefore,
RA of the completed station STa number "a" is entered
The processes of S110 and S120 are repeated until the data is stored in M101.

In FIG. 7, in correspondence with the route number "1",
The state in which the numbers of the work stations ST are input in order from the first of the route as “3 → 4 → 5 → 6 → 2 → a” is shown. Since "a" is entered at the sixth position of the route, the input work for this route is completed. When the route input is completed (S120: YE
S), it is determined whether or not bypass setting is made (S13).
0). This determination is made by determining, for example, by a key (not shown) on the keyboard 111 or the mouse 113, which instruction “ON / OFF” for bypass setting has been input.

When the bypass setting is made (S130:
YES), the station number of the work station ST which is the protection station passing through as a bypass route is input (S140) and stored in the RAM 101 (S15).
0). Then, the keyboard 111 or the mouse 11
It is determined whether or not an instruction to end the bypass setting is input from S3 (S160), and the processes of S130 and S140 are repeated until the instruction to end the bypass setting is given.

For example, in the case shown in FIG. 7, the station number 4 is the second work station ST on the route.
The station number “8” is set in the first and second columns of the bypass, and the station number “9” is set in the third column corresponding to the work station ST4.

Corresponding to the fourth route, the station number "6" corresponding to the fourth route is set in the first bypass and the station number "7" is set in the second route. Has been done. If there is an instruction to end the bypass setting (S160: YES), the number of bypass settings is stored (S170), and the present process is temporarily ended. As for the bypass setting number stored in the case shown in FIG. 7, the setting number corresponding to the second route is 3, the setting number corresponding to the fourth route is 2, and the other setting numbers are 0.

On the other hand, if the instruction of "no bypass setting" is input in the process of S130 (S13)
0: NO), this process is temporarily terminated without performing the processes of S140 and thereafter. In the above, the editing process of the transport route corresponding to the route number “1” has been described, but the editing process is similarly performed for other route numbers.

After the transport path is edited in this way, the transport of the transport body 36 is actually controlled. This transport control process will be described with reference to the flowchart of FIG. Here, the transport control process based on the transport route of the route number “1” shown in FIG. 7 will be described.

First, from the loading station STb, the carrier 3
6 is thrown in (S200), and the number of conveyed bodies is stored (S200).
210). The number of each carrier 36 is read by the number reading device 39 provided in the charging station STb, and is stored in association with the route number “1”. Here, the following description will be continued on the assumption that the number of fed transport bodies is 12.

After the bypass counter m = 0 and the route counter n = 1 are initialized (S220), the route n
Next, it is judged whether or not there is a bypass setting (S23).
0). This determination in S230 is based on each work station S
Predetermined work is performed at T, and is performed when the carrier number of the carrier 36 is read by the number reading device 39 of the carry-in portion 11a of the station rail 11.

Since the initial setting value is n = 1, S23 is set for the first time.
When the process of 0 is performed, it is determined whether or not the bypass setting is made for the first route. As shown in FIG. 7, since no station number is written in the bypass column corresponding to the first route (S230: N
O), and the conveyance to the nth work station ST is instructed (S240).

This conveyance instruction is performed by searching the work station number from which the carrier number is read, reading the destination instruction work station number shown in FIG. 7 from there, and controlling each sorting mechanism 1. Is. That is, the number is read by the number reading device 39 of the carry-in section 10a of the bridge rail 10 and the carrier 36 held by the sorting arm 44 is carried out to the carry-out sections 10b and 11b of the bridge rail 10 or the station rail 11. The rotation of the servo motor 47 is controlled. In this case, work station ST with station number "3"
The carrier 36 is transported to 3.

Then, it is judged whether or not a transportation instruction to the first work station ST on the route has been issued to all of the twelve transportation bodies 36 that have been loaded (S250), and when the loading amount has not ended. (S250: NO), S230
Return to and repeat the following process.

Here, S2 is added until the input is completed.
40, or the work at the destination station ST designated in S280 to be described later is completed, and the route counter n is not incremented for the transport body 36 whose number has been read by the number reading device 39. Will not be served. At this time, the carrier 36 having no destination
Will be circularly moved on the bridge rail 10 until the destination is instructed.

In the case of the first route, since there is no bypass setting, S is applied to all the twelve carriers 36 that have been input.
The processing of 240 is executed. Then, when the input is completed (S250: YES), it is determined whether or not the n-th (first in this case) route is the completed station STa (S260).

In this case, since it is not the completed station STa (S260: NO), it is initialized to m = 0 and
The route counter n is incremented (S270) and S2
Returning to 30, the following processing is repeated. When the transport control for the first route is completed and n = 2 is set in the process of S270, the process returns to S230 and the transport control for the second route starts next. In order to explain the second route below,
The explanation that the route is the second one is omitted.

First, it is determined whether or not there is a bypass setting on the second route (S230). As shown in FIG. 7, there is a bypass setting in the second route (S230: YE
S), the second transfer route is carried to the bypass m (= 0) th work station ST4 (S280). Note that m =
0, that is, the 0th of the bypass is the route itself, and in this case, the first transport body 36 is transported to the second work station ST4 of the route.

Then, the bypass counter m is incremented to m = 1 (S290), and it is determined whether the value of m is larger than the bypass setting number "3" (S300).
In this case, since m (= 1) is smaller than the bypass setting number (= 3) (S300: NO), it is determined whether or not the charged amount is completed while keeping m = 1 (S250).

If the input is not completed (S25
0: NO), and returns to S230 to repeat the following processing.
Since there is a bypass setting on the second route, YES is always obtained in the process of S230, and the process proceeds to S280. Two
In step S280, m =
1, that is, the bypass is conveyed to the work station ST having the station number written in the first column. As shown in FIG. 7, since the first bypass is "8", the second carrier 36 is carried to the work station ST8 having the station number "8".

Then, the bypass counter m is incremented to m = 2 (S290), and it is determined whether the value of m is larger than the bypass setting number "3" (S300).
In this case, m (= 2) is smaller than the bypass setting number (= 3) (S260: NO), so that m = 2 is maintained and S23 is set.
Return to 0.

For the third carrier 36, S280
At m = 2, that is, the bypass is conveyed to the work station ST having the station number written in the second column. As shown in FIG. 7, since the second bypass is also “8” like the first bypass, the second transfer body 36 is transferred to the work station ST8 with the station number “8”.

Then, the bypass counter m is incremented to m = 3 (S290), and it is determined whether or not the value of m is larger than the bypass setting number "3" (S260).
In this case, since m (= 3) is the same as the bypass setting number (= 3) (S300: NO), m = 3 remains unchanged and S230
Return to.

For the fourth carrier 36, S280
In step m = 3, that is, the bypass station is conveyed to the work station ST having the station number written in the third column. As shown in FIG. 7, since the third bypass is "9", the work station ST9 with the station number "9" is
Then, the fourth carrier 36 is carried.

Then, the bypass counter m is incremented to m = 4 (S290), and it is determined whether or not the value of m is larger than the bypass setting number "3" (S300).
In this case, m (= 4) is larger than the bypass setting number (= 3) (S260: YES), so m is initialized to 0 (S310) and the process returns to S230.

Since m = 0 with respect to the fifth carrier 36, it is carried to the work station ST4 of the station number "4", which is the destination according to the route, as in the case of the first carrier 36. Then, in step S290, the bypass counter m is incremented to m = 1, and the processing for the sixth carrier 36 is performed. This sixth carrier 3
The process for 6 is the same as the process for the second carrier 36, and the process for the next seventh carrier 36 is the same as the process for the third carrier 36. Furthermore, the process for the next eighth carrier 36 is the same as the process for the fourth carrier 36.

That is, when one of the twelve carrier bodies 36 is carried to the work station ST4 of the station number "4" which is the destination according to the route, the next two work objects of the station number "8" are worked. It is transported to the station ST8, and the next one is transported to the work station ST9 with the station number "9".

As described above, as a result of the transport control for the second route, the twelve carriers 36 that have completed the work at the first work station ST on the route are station numbers "4", "8", and "9". Work station ST4, S
T8 and ST9 can be transported at a ratio of 1: 2: 1.

When the bypass setting is not made for the third and fifth routes shown in FIG. 7 (S230), as in the case of the first route described above, all of the twelve carriers 36 that have been inserted are processed. Then, the process of S240 is executed, and the sheet is conveyed to a destination according to the route.

As for the second route, as described above, the work stations ST4, ST8, and ST9 having the station numbers "4", "8", and "9" are transported at a ratio of 1: 2: 1. However, the transfer control at other transfer ratios will be described by taking the case of the fourth path as an example.

As a result of the above-described transport path editing process, the station number "6" is set first in the bypass and the station number "7" is set second in the route. Since the number of bypass settings is 2, the bypass counter m starts from m = 0, and by the processing of S290 to S310, m = 0, 1, 2, 0, 1, 2, ... Is repeated.

Therefore, in the case of m = 0 and in the case of m = 1, the work is transferred to the work station ST6 having the station number "6", which is the fourth destination of the route. On the other hand, when m = 2, it is transported to the work station ST7 with the station number "7".

As a result of the transport control for the fourth route,
Completed work at the third work station ST on the route 1
The two carriers 36 are respectively in a ratio of 2: 1 to the work station ST6 having the station number "6", which is the fourth destination of the route, and the work station ST7 having the station number "7", which is the support work station thereof. It can be transported.

In this way, the transfer control is performed in the order of the routes while incorporating the bypass control, and when the route counter n = 6, that is, the sixth route is reached, in the determination of S260,
The sixth route is the completion station STa (S2
60: YES), and this process ends.

It should be noted that S during the transport path editing process shown in FIG.
Execution of the processing of 130 to S170 acts as a bypass setting means, and S230 and S2 during the transfer control processing shown in FIG.
The execution of the processing of 80 to S310 works as a bypass instruction means. In addition, S140 and S15 during the transport route editing process.
Execution of the processing of 0, more specifically, the station number of the work station ST to be the protection station is input in a predetermined ratio in the bypass column shown in FIG.

As described above, according to the carrier device with the bypass control function of the present embodiment, the work stations ST other than the carrier path are arranged as shown in FIG. By inputting the number of the work station ST in the bypass field, it can be set as a support work station for performing the same work as that of the arbitrary work station ST.

Then, when the protection work station is set for the next destination work station based on the transport route, the work station is transported to the work station ST or is replaced with the work station ST in accordance with a predetermined ratio. Can be carried to the support work station.

Therefore, for example, for a work station ST that requires a longer work time than the work at another work station ST, a support work station for performing the same work is set. Then, the carrier 3 is transferred to the specific work station ST and the support work station where the work time is long.
By dispersing and transporting 6 at a predetermined ratio, it becomes possible to equalize the pitch time in each work process.

An example of the case shown in FIG. 7 will be described. For example, in the third work step, 1
It takes 60 seconds each time, 90 seconds for the 4th work process, 5th for the work process
Consider the case where the work process requires 30 seconds. The third work process is performed at the work station ST5 at the third route, and the fourth work process is performed at the work station ST at the fourth route.
6 and the work station ST7 of the station number "7" which is the support work station. Also, the fifth
The work process is performed at the fifth work station ST2 on the route.

As a result of the above-described transfer control, the twelve transfer bodies 36 that have completed the work at the third work station ST on the route.
Is the work station ST6 of the station number "6"
And the work station ST7 with the station number "7"
2: 1 respectively.

Therefore, the fourth work process is performed on the work station ST6 having the station number "6", which is the fourth work station ST on the route, for eight work lines, which is two-thirds of the eight work work lines. (Book) × 90 (seconds) is a total work time of 720 seconds.

Further, the number to the work station ST7 of the station number "7" is 4 which is one-third of 12, which is 4 (lines) × 90 (seconds), which is 360 seconds. By performing the bypass control in this way, the pitch time of the work in the fourth work station ST6 on the route can be regarded as 60 seconds per one transport body 36, and the route 3
It becomes the same as the pitch time in the th. Further, at the support work station ST7, the work pitch time can be regarded as 30 seconds.

For comparison, consider the case where bypass control is not performed. For example, the carrier 3 carried at intervals of 60 seconds from the third work station ST on the route.
In No. 6, since the work on the fourth route takes 90 seconds, it gradually accumulates. On the other hand, the carrier 36 is conveyed from the work station ST on the fourth route at 90-second intervals, but the work on the fifth route is completed in 30 seconds, so the work is completed and the next carrier 36 is conveyed. The free time waiting for you to come is very long. In this way, the work efficiency becomes very poor.

Therefore, by performing the bypass control as described above, the work station ST having a short working time can be obtained.
It is possible to improve the work efficiency by preventing the idle time of the work at the time of work, and conversely, the retention of the workpiece to be sewn at the work station ST where the work time is long.

As described above, the route 2 shown in FIG.
1: 2: 1 for the second and 2: for the sixth route.
For example, the transport ratio can be set to 1. Therefore, it is possible to adjust the number of carriers to be transported to the work station ST and the number of carriers to be transported to the support work station according to the transport path, and it is possible to more accurately adjust the pitch time balance.

Further, in order to realize such bypass control, it is not necessary to add special parts such as a bypass rail which has been used conventionally. Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the spirit of the present invention. In the present embodiment, the route counter n as a parameter is not incremented until the work for all the input numbers is completed. For example, if the route counter n is stored for each carrier 36, the progress of each carrier 36 is advanced. It can be incremented according to the situation.

[0079]

As described above in detail, in the transfer device with the bypass control function of the present invention, the work stations other than the transfer route are set as the support work stations for performing the same work as any of the work stations. When the support work station is set, the transfer to the work station or the support work station in place of the work station can be performed according to a predetermined ratio. Moreover, the bypass control can be realized only by software control.

Therefore, a support work station for allowing a work station other than the transport route to perform a work similar to that of any work station on the transport route without adding any parts. It is possible to carry out bypass conveyance by setting as the above, and by setting a desired conveyance ratio by the conveyance ratio setting means, the number of carriers to be conveyed to the work station and the support work station set for that work station are conveyed. By adjusting the number of carriers, the pitch time in each work process can be adjusted more accurately.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating a basic configuration of the present invention.

FIG. 2 is an overall schematic layout diagram of a carrying device as an embodiment of the present invention.

FIG. 3 is a layout diagram illustrating the layout of a distribution mechanism, a transport rail, and the like of the transport device according to the present exemplary embodiment.

FIG. 4 is an enlarged partial front view of the carrying device according to the present embodiment.

FIG. 5 is a block diagram showing an electrical configuration of this embodiment.

FIG. 6 is a flowchart showing a transport route editing process of this embodiment.

FIG. 7 is an explanatory diagram showing a route edit screen displayed on the display of the present embodiment.

FIG. 8 is a flowchart showing a transport control process of this embodiment.

[Explanation of symbols]

ST ... Work station 1 ... Distribution mechanism
8 ... Conveyor rail 36 ... Conveyor 39 ... Number reading device 6
0 ... Electronic control circuit 100 ... Host computer 101 ... RAM 1
15 ... Display

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B65G 47/70 8010-3F // G05D 1/02 P 7828-3H

Claims (2)

[Claims] 1. A transport mechanism, which is provided with a plurality of work stations along a transport rail for transporting a transport body, and is capable of transporting the transport body to each of the work stations according to a transport route for performing a work, and a corresponding working station for each work station. And a number reading means for reading a unique carrier number attached to the carrier, and the carrier mechanism for controlling the carrier to transport the carrier preset according to the carrier number. According to a route, in a transport device having a transport control means for transporting from a work station that has finished work to the next work station, with respect to any work station in the transport route, the work stations other than the transport route, Bypass setting means set as a support work station for performing the same work as the arbitrary work station, and When the support work station is set for the next destination work station based on the transfer route, the support work station is transported to the work station, or the support work station as a substitute for the work station according to a predetermined ratio. And a bypass instructing unit for instructing the transfer control unit to transfer to and from the transfer device with a bypass control function. 2. A transfer ratio setting capable of arbitrarily setting a transfer ratio, which is a ratio of the number of transfer bodies to be transferred to the work station and the number of transfer bodies to be transferred to the protection work station set for the work station. The carrier device with a bypass control function according to claim 1, further comprising a means.