JPH0423719A - Carrying device - Google Patents

Abstract

PURPOSE:To improve the working efficiency of a directing and carrying device of the material for sewing work by deliverying the material to a delivery rail without overflow on the basis of the command when a directing command is given, and deliverying the material to a delivery rail without overflow and connected to other directing means when a command is not given. CONSTITUTION:Number of the material to be carried is read by a number reading M1, and direction judging means M3 judges existence of the directing command of the material to be carried from a carrying rail to a directing means M2. An overnormal detecting means M4 detects overflow of the material to be carried on each delivery rail. When a directing command is given, a first setting means M5 corresponds to the commanded direction to delivery it with a delivery rail without overflow. When a command is not given, a second setting means M6 directs the material to be carried to a delivery rail connected to other directing means M2 and without overflow.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a conveyance device that distributes and conveys conveyance bodies to delivery rails in accordance with a friend distribution command.

[Prior Art] Conventionally, as a conveyor device for conveying a conveyor holding work-in-progress materials such as sewing products in a sewing factory, etc.
For example, as described in Japanese Patent Application No. 193129 filed by the applicant for the mainland, a sorting means connected to a plurality of pairs of loading and unloading rails for loading and unloading conveying bodies reads the number of the conveying body by a number reading means. It is known that the transport bodies are sorted and carried out to a carry-out rail in accordance with a sorting command set from a destination instruction based on the above.

[Problem to be solved by the invention] With these conventional methods (for example, when the conveyance destination is a work station, there are cases where it is advisable to temporarily stop conveyance there due to the progress of work at the work station, etc.) At that time, the conveyor was kept in a state where there was no destination and the conveyor was prevented from being conveyed to the work station. The flow of the conveyed object may be delayed or stopped due to problems such as delays or stops, or problems such as derailment of the conveyed object in the middle of the unloading rail.Then, other conveyed objects are transported one after another from behind. When this happens, the conveyors are lined up on the rail and become jammed, and it is no longer possible to line up the conveyors any more, resulting in an overflow condition.

When a situation like this where there is no destination instruction or an overflow situation occurs, if we wait until the situation is resolved, the flow of conveyance objects will become congested.
In addition, instead of waiting until these conditions are resolved, the conveyor can be moved to a location unrelated to its destination. When the above-mentioned condition is resolved, the conveyed object may have been transported to a place far away from its destination. Later, it takes time to transport the carrier to its destination, resulting in a problem that work efficiency is reduced.

Therefore, the present invention aims to solve the above problems,
To provide a conveying device which can prevent the loading time of a conveying body from increasing even if a condition such as no destination instruction or overflow occurs, and can improve work efficiency.

[Means for Solving the Problems] In order to achieve the above object, the present invention adopts the following configuration as a means for solving the problems, namely, as illustrated in FIG. a plurality of pairs of loading and unloading rails; a number reading means M1 for reading the number of the conveying body; and a number reading means M1 for reading the number of the conveying body; and a number reading means M1 connected to the loading and unloading rail to move the conveying body according to a sorting command set from a destination instruction based on the number read from a tag. In the conveying device which has a sorting means M2 for distributing the conveying bodies to the carrying-out rails and conveys the conveying bodies, whether or not there is the destination instruction corresponding to the number of the conveying bodies carried from the carrying-in rail to the sorting means. a destination blocking means M3 for determining whether the conveyor on each of the carry-out rails has overflowed; and a regulation excess detection means M4 for detecting an overflow of the carrier on each of the carry-out rails; , first setting means M5 for setting the distribution command to the corresponding discharge rail to another possible loading rail in the case of the overflow, and when there is no destination instruction, to the other distribution. If the pair of output rails connected to the means is not the overflow, the distribution command is sent to the pair of output rails connected to the distribution means, and when the output is the overflow, the distribution command is sent to the other output rail that can be input. This is a configuration of a conveying device characterized by comprising: a second setting means M6 for setting;

[Function] The conveying device of the present invention having the above configuration has a number reading means M
1 reads the number of the carrier, and the destination blocking means M3 determines whether or not there is the destination instruction corresponding to the number of the carrier carried from the carry-in rail to the sorting means M2.

Moreover, the regulation excess detection means M4 detects overflow of the carrier on each carry-out rail. And the first setting means M
5, when there is a destination instruction (if the unloading rail corresponding to the other destination instruction is not an overflow, set a distribution command that distributes the conveyed object to that unloading rail, and if it is an overflow, distributes the conveyed object to another unloadable unloading rail. .Furthermore, the second setting means M6 indicates that when there is no destination instruction (if the pair of discharge rails connected to the distribution means on the upper ground is not an overflow), the second setting means M6 selects a pair of discharge rails that are connected to the distribution means on the upper ground when the output is overflow. A sorting command is set to allocate the conveyance bodies to other carry-out rails that can be inputted.Then, the sorting means M2 distributes the conveyance bodies to the corresponding carry-out rails and transports them according to the set sorting command.

[Example] Embodiments of the present invention will be described in detail below based on the drawings.

FIG. 2 is a plan view showing a schematic configuration mainly of rails and the like of a conveying device according to an embodiment of the present invention, and FIG. 3 is a side view of the same.

A plurality of sorting mechanisms 1a, 1b, . . . are installed at intervals in a sewing factory or the like.Since they have the same structure, the following explanation will focus on one sorting mechanism]a. Sorting Mechanism] A is provided with a support 3 that stands up on the floor 2.

The support shaft 4 is erected at the upper end of the support column 3 via a mounting base 5. A support plate 6 is fixed to the upper end of the support shaft 4. The station rail support frame 7a in the form of a rectangular frame is supported and fixed to the upper surface of the support plate 6 at its intermediate portion. A pair of parallel bridge rail support frames 7b are arranged in adjacent distribution mechanisms 1a, ]b.
It is supported and fixed across the support plates 6 of...

Loading and unloading bridge rail 8.10 for loading and unloading the carrier 36 (described later) (suspended support tongue distribution mechanism on the bridge rail supporting frame 7b by a plurality of hanging fittings 9) a
It is connected to the. In this embodiment, the sorting mechanisms 18.1b are connected to each other by a pair of parallel bridge rails 8.10. It is a carry-in rail for carrying in, and the other bridge rail 10 is a carry-out rail for carrying out the carrier 36. Also, for the adjacent sorting mechanism 1b, one bridge rail 8 serves as a carry-out rail, and the other bridge rail 10 is a carry-in rail. Also, work stations STI, Sr1, Sr3, arranged around the sorting mechanisms 1a, ]b, ...
A horseshoe-shaped station rail 11 is provided to transport the transport body 36 via Sr1, . . . .

The half of the station rail 11 from when the transport body 36 is carried out from the sorting mechanism]a until it reaches the work stations ST1 and Sr1 is the carry-out rail for the sorting mechanism 1a. In addition, work stations STI, Sr.
Station rail from 1 to sorting mechanism 1a] 1
half of which is the loading rail.

Carrying-in sections 8a and 11a are provided at one end of the bridge rail 8 and one end of the station rail 11, and a carrying-out section 10 is provided at one end of the bridge rail 10 and the other end of the station rail 1.
b, llb are formed respectively. These loading/unloading sections 8a, lla, 10b, 1]b are arranged around the sorting mechanism 1a at the same height at predetermined angle intervals (45 degrees in the example). . In this embodiment, the unloading section 10b
, 11b are provided at four locations, and in order to distinguish between the bridge rail 10 or the station rail 11 for transporting the carrier 36, the numbers from ■ to ■ are predetermined as shown in FIG. Further, a carry-out section 8b is connected to the other end of the bridge rail 8, and a carry-in section 10a is connected to the other end of the bridge rail 10, respectively, to an adjacent sorting machine 1111b. Note that the work station STI,
Sr1, Sr3, Sr1... are station rails 1
1 is formed by a sewing device such as a sewing machine located below the sewing machine.

4 and 5. As shown in FIGS. 4 and 5, the rotating shaft 12 is rotatably penetrated through a bracket fixed to the support plate 6 of the sorting mechanism [a] 3 and has a drive sprocket 1 at its lower end.
4 is fixed. The driven sprocket 15 is rotatably and positionally adjustable via a movable bracket 6 on the lower surface of the other side of the support plate 6 so as to be located on the opposite side of the driving sprocket 14 via the support shaft 4. A pair of interlocking shafts 17 are rotatably and positionally adjustable through the support plate 6 via a movable bracket 18 so as to be located between the two sprockets] 4.15. An interlocking sprocket 19 is fixed to their lower ends. has been done.

The endless first chain 2o is hung across the driving sprocket 14 and driven sprocket 15 of the adjacent distribution mechanism 1b, and is connected to a plurality of guiding sprockets 21 provided on the lower surface of the support plate 6 and each hanging sprocket. A plurality of chain guides 22 provided on the lower metal fitting 9 allow the bridge rail 8.1 to
01: Stretched along. Endless second chain 2
[3 is each interlocking sprocket] 9 is connected to the station by a plurality of guiding sprockets 24 provided on the lower surface of the hanging tag support plate 6 and a plurality of chain guides (not shown) provided on each hanging metal fitting 9. It is stretched along the rail 71.

A chain drive motor 26 is mounted on the support plate 6 of the sorting mechanism 1a via support legs 27. A drive pulley 28 is fixed to the motor shaft 26a. The driven pulley 29 is fixed to the upper end of the rotating shaft 12. A timing belt 30 is hung between the driven pulley 29 and the drive pulley 28. The three interlocking pulleys 31 are fixed at the middle part of the rotating shaft 12 and at the upper end of the interlocking shaft 17.A timing belt 32 is hung on these interlocking pulleys 31. A pair of tension pulleys 3 that apply tension to 32
3 is provided.

As shown in FIGS. 3, 5, and 7, the conveyor 36 is movably connected to the bridge rail 8.10 or the station rail 11 via a pair of transfer rollers 37.
It is shaped like a hanger so that items such as sewn products can be hung there. A pair of engagement shafts 38 having a plurality of engagement protrusions 38a on their outer peripheries are rotatably supported by the carrier 36, and the rotation of the engagement shafts 38 is normally regulated by friction means (not shown). Then, with the engagement protrusion 38a of the engagement shaft 38 engaged with the first or second chain 20.23, the conveyor 36 moves along the bridge rail 8.10 or the station rail 111 due to the movement of the chain 20.23. It is transported and moved.

A 1mm number reading device 39 is attached to the hanging bracket 9 on the loading section 8a, lla of one of the bridge rails 8 and the station rail 11 (as shown in FIG.
When the transport body 36 is transported along the carry-in bridge rail 8 or the station rail 1 to a position corresponding to the number reading device 39, the movement of the transport body 36 is temporarily stopped by contact with a stopper (not shown). This number reading device 39
The number is read by a code mark (not shown) attached to the carrier 36 for identifying the carrier.

The chains 2o and 23 continue to move even when the conveyor 36 is stopped, but in this case the engagement shaft 38 is made to idle as the chains move against the action of the friction means.

In addition, an overflow switch 40 is provided as a means for detecting an excess of the regulation (1: as shown in FIG. The carrier 36 is placed on the bridge rail 10 or the station rail.
When a predetermined number of rails are lined up, the top of the rail becomes full of carriers 36, and the last carrier 36 extends into the unloading section 10b, llb.
0.1], resulting in an overflow. An overflow switch 40 detects this overflow and outputs a signal. The overflow switch 40 (i) is composed of a limit switch, a photointerrupter, etc. that is turned on and off by the passage of the carrier 36, and when the carrier 36 stays due to overflow and the overflow switch 40 continues to be turned on, the above-mentioned signal is is output.

Note that the overflow is the rail ]0, ]1 as described above.
The top is filled with the lined up transport bodies 36, and the last transport body 3
6 protrudes into the unloading section 10b, llb. For example, if there is a load limit on the rail 10.11 due to the durability strength of (i, rail) 0.11 (for example, if the rail 10. .11 Even if the top is not full of carriers 36, the load limit is reached when a predetermined number of carriers 36 are lined up, and any further carriers 36 are placed on the rail 1.
It is no longer possible to line up on 0.11, resulting in an overflow. In this case, an overflow switch 40 may be provided that outputs a signal when the load applied to the rail (Table 10.1) reaches a limit value.

As shown in FIG. 2, FIG. 3, FIG. 5, and FIG. A thrust bearing 43 is interposed between the edge and the mounting base 5.The outer peripheral edge 1 of the rotating body 41 (bridge rail 8.10, station rail 1) is inserted into the loading portions 8a and 11a. A plurality of (eight in this embodiment) sorting arms 44 are fixed to protrude radially at a predetermined angle (45 degrees in this embodiment) so that they can face the first chain 20 or the unloading sections 10b, 11b. It extends to a position corresponding to the movement range of the second chain 23.

Furthermore, as shown in FIGS. 5 and 8, detection objects 54 are attached to the lower surface of the rotating body 41 at positions corresponding to the respective distribution arms 44. As shown in FIGS. A detector 57 is mounted on the support plate 52 corresponding to the object to be detected 54, and this detector 57 detects the end of the object to be detected 54.
The configuration is such that the origin position of the rotating body 41 is detected.

A holding rail 45 for holding the transport body 36 is swingably attached to the tip of each sorting arm 44 by a shaft 46, and an engaging protrusion 45a is formed at the inner end thereof. Usually, as shown in Fig. 5, 1:, this holding rail 4
5 is held in an inclined state with the engaging protrusion 45a lowered by its own weight.
When it is carried onto the distribution arm 44 from the carrying-in portions 8a, lla of one of the bridge rails 8 or station rails 1, its carrier 36 engages with the engagement protrusion 45a along the holding rail 45. It is configured such that the engagement shaft 38 is disengaged from the first or second chain 20.23 when the engagement shaft 38 is lowered to the position.

As shown in FIGS. 3 to 6, 1: A servo motor 47 for rotating the arm, which can rotate in forward and reverse directions, is mounted on the support plate 6.
A drive pulley 48 is fixed to the motor shaft 47a. A driven pulley 49 is fixed to the upper surface of the rotating body 41 while being fitted onto the support shaft 4. A timing belt 50 is hung between the driven pulley 49 and the driving pulley 48. Then, by rotating the servo motor 47 in the forward or reverse direction, the rotating body 41 is rotated in the forward or reverse direction by a predetermined angle of 45 degrees or an integral multiple thereof via the drive pulley 48, timing belt 50, and driven pulley 49. Angle-rotated sorting arm 44 holding the carrier 36 can be rotated to a position facing a predetermined bridge rail 8.10 or station rail 11.

The servo motor 47 is feedback-controlled based on the detection signal of the detected object 54 from the detector 57 described above, and an encoder 72 is installed inside the servo motor 47 to control the servo motor 47. It is configured to detect the rotation amount of the distribution arm 44, that is, the rotation angle of the distribution arm 44.

Further, as shown in FIGS. 3 and 5, a push-up cylinder 51 is provided below each distribution arm 44 (as shown in FIG. 5).
The piston rod 5 is attached to the mounting base 5 by 2.
At the upper end of 1a, there is a holding rail 45 on the distribution arm 44.
A push-up body 53 that can be engaged with is provided. Then, the piston rod 51a, which is normally retracted, is moved to the fifth position.
When the push-up body 53 is raised as shown in the figure, the holding rail 45 that supported the carrier 36 is rotated one degree from the downwardly inclined state to the horizontal state, and the engagement shaft 38 on the carrier 36 is rotated one turn. is configured to be engaged with the first or second chain 20.23.

Next 1: The electrical system of this embodiment will be explained with reference to the block diagram shown in FIG. Each of the devices described above is driven and controlled by an electronic control circuit 60 to transport the transport body 36. This electronic control circuit 60 (the well-known CPL162, ROM64, R
The AM 66 is configured as a central logic operation circuit, and input/output circuits 68 and the like that perform input/output with external devices are connected to each other via a common bus 70.

The CPU 62 receives signals from the friend number reading device 39, overflow switch 40, inspection device 57, encoder 72, keyboard 74 (described later), etc., through the input/output circuit 68. On the other hand, these signals and ROM64, RA
Based on the data in M66, the CP LJ 62 m outputs a drive signal for driving the servo motor 47 via the input/output circuit 68, and also controls the drive signal for the push-up cylinder 51 via the input/output circuit 68 (not shown). It outputs to the valve to control the operation of the push-up cylinder 5.

Further, the electronic control circuit 60 controls each distribution mechanism 1a,]b
, . . . , and the plurality of electronic control circuits 60 are connected to a host computer 75.
The host computer 75 (from which overall control is performed)
, the order in which each conveyance body 36 is to be conveyed to each work station ST1, . be done. And host computer 75
From (Y), a destination instruction indicating to which work station STI, . The destination instruction from the host computer 75 is stored as the contents of the destination instruction table 76 shown in FIG. Electronic control circuit 60 (each may be stored)
When the carrier 36 arrives at the designated work station STI, .
I, . . . are output to each electronic control circuit 60 to rewrite the destination instruction table 76.

Next 1'' Knee Tracking of the conveyance device of this embodiment The processing performed in the electronic control circuit 60 described above will be explained with reference to the flowchart shown in FIG.

First, when the chain drive motor 26 provided in the distribution mechanism 1a is rotated, the first chain 20 is moved through the 1-mm drive pulley 28, timing belt 30, etc., as shown in FIGS. 4 and 5. As the rotating shaft 12 rotates, the second chain 23 is moved along the bridge rail 8.10 in the counterclockwise direction in FIG. They are moved around in the same direction along the station rail 11.

Thereby, the carrier 36 on the bridge rail 8.10 or station rail 1 (bridge rail 8.10 or station rail 1 with the companion transport 38 engaged in the first or second chain 20.23) ] in the direction of the arrow in FIG.

Then, the conveyor 36 is conveyed along the bridge rail 8 to a position corresponding to the number reading device 39, and this conveyor 36
is temporarily stopped by a stopper (not shown). At this time, it is determined whether or not there is a conveyance body 36 to be carried into the sorting mechanism 18 based on whether the number for conveyance body identification attached to the conveyance body 36 is read by the number reading device 39, and it is determined that there is a conveyance body 36. Then, the following shooting separation control process is executed (step 100, hereinafter simply referred to as 5100, and the same applies hereinafter). Next, for each distribution arm 44]:,
The presence or absence of the carrier 36 carried into the distribution arm 44 is stored (S110). In this embodiment, each distributing arm 44 is assigned an am number 1 to 8 to distinguish it.
The number reading device 39 reads the number of the conveyance body 36 to be carried into the carry-in portions 8a and 11a located opposite to the sorting arm 44 of a certain arm number, and the number is displayed in the conveyance body photography sorting table 78 shown in FIG. As shown, presence "1" and no r
Memorize QJ. In this embodiment, since there are four carrying-in sections 8a, ]]a, up to four conveyors 36 may be carried in at the same time.

Next, referring to the destination instruction table 76 in FIG.
It is determined whether there is a destination instruction of No. 6 (S120).

In this embodiment, the destination instruction is the station number (STI,
Sr1,...), and if there is a station number in the destination instruction table 76, it means that there is a destination instruction, and if it is "0", it means that there is no destination instruction, which will be described later.

When there is a destination instruction (by referring to the friend destination instruction table 76, the overflow occurs depending on whether the overflow switch 40 provided at the bridge rail 0 or the station rail 1 corresponding to the destination instruction is on or off). (S130).

If it is determined in 5130 that there is no overflow, the carrier 36 is moved to the rail 1 according to the destination instruction.
What number is the distribution arm 4 in order to distribute to 0.11?
Calculate the rotation angle to determine how many times 4 should be rotated. Then, as shown in the conveyor distribution table 78 in FIG.
140).

Then, if there are a plurality of sorting arms 44 stored as having transport bodies 36 in 5110 (5120 above),
By repeating the following process, the distribution arm 4
The rotation angle and destination rail number are memorized every four times, and a distribution command is set (S150).

In this way, the conveyor distribution table 781-.

After storing the necessary sorting command, the stopper is retracted to release the stop of the conveyor 36, and the conveyor 36 is carried from the carry-in section 8a, ]1a onto the sorting arm 44, as shown in FIG. (S160). Then, it descends under its own weight to the position where it engages with the engagement protrusion 45a on the downwardly inclined holding rail 45, and the engagement shaft 38 is released from engagement with the first or second chain 20.23, and the conveyance The body 36 is held stationary on the lever 45.

In this state, the servo motor 47 for arm rotation is rotated by a predetermined angle based on the contents of the conveyor sorting table 78, and the rotating body 41 is rotated in the forward or reverse direction via the drive pulley 48, etc., and conveyed. The sorting arm 44 holding the body 36 is rotated to a position facing the carrying-out section 10b, ]1b (S170).

After the rotation arrangement is completed, the pushing up body 53 is raised by the pushing up cylinder 51 corresponding to the distribution arm 44 holding the conveying body 36, and the holding rail 45 is rotated from the downwardly inclined state to the horizontal state, and the conveying body 36 is raised to engage the engagement shaft 38 with the first or second chain 20.23.

Then, as the first or second chain 20.23 moves, the conveyor 36 is transferred from the distributing arm 44 to the unloading section 10b.
, 11b (S180).

In the case where the processes of 5170 and 5180 are shown in the conveyor distribution table 78 (for each distribution arm 44,
Repeat four times to unload all the transport bodies 36 (S190
), after all the carriers 36 are unloaded, the process returns to 5100 and the following process is repeated.

Note that when the carrier 36 reaches a position on the station rail 11 corresponding to the work stations STI, . . . , the movement of the carrier 36 is stopped by a stopper protruding from the station rail 11. A worker such as a sewing manufacturer removes an article such as a sewn product from the conveyor 36 in this state, performs sewing or other work on the article, and returns the article to the conveyor 36, after which the stopper After being evacuated, the transport of the transport body 36 is resumed.

In addition, the work at the work station STI does not proceed, and the conveyance bodies 36 are lined up one after another on the station rail 11 and overflow, or (the bridge rail connecting from the distribution mechanism 1b on one side to the distribution mechanism 1b on the other side) O
In some cases, the carriers 36 get stuck on the bridge rail 10, and the carriers 36 are lined up one after another on the bridge rail 10 and overflow.

In such a case, it is determined whether the overflowing rail]0.11 is the station rail 11 (S200), which is determined to be an overflow in S]30 of the main distribution control process that is repeatedly executed.

Then, when station rail 1] is (1:, for example +1 carrier 36 to return the mountain carrier 36 in the direction from which it came)
is conveyed from the neighboring sorting mechanism 1b (the bridge rail 10 connected to the neighboring sorting mechanism 1b)
(The rotation angle is calculated to determine how many times the numbered distribution arm 44 should be rotated.Then, the rotation angle and the destination rail number are stored for each distribution arm 44, and the distribution command is issued. Set (S210)
.

On the other hand, when the station rail 11 is not the destination but the bridge rail 10 and the bridge rail 10 corresponding to the destination instruction is overflow (Top
6 to other bridge rails that do not overflow and can be input] 0, calculate the rotation angle of how many times the distribution arm 44 of which number should be rotated. Then, the rotation angle and destination rail number are stored for each distribution arm 44, and a distribution command is set (S220).

After that, repeat the process from 8150 onwards, and
The carriers 36 are distributed according to the distribution command set by 210.5220. Therefore, when there is a distribution instruction and the destination rail 10,]1 is overflowing, the bridge rail 10 that returns to the direction it came from, or (depending on whether the station rail 11 is the destination) or ( Other possible bridge rails 1
The transport bodies 36 are distributed to 0. After these processes are completed, the processes from 5100 onwards are repeated.

On the other hand, in this embodiment (when the sorting mechanism 1a transports the carrier 36 onto the station rail 11 to the work station STI, the destination instruction table 76 indicates the destination instruction corresponding to the carrier 36). rQJ
I have to. That is, the destination is the work station ST1 located below the station rail]1 connected to the distribution mechanism]a.
Only when distributing the carrier 36 with the carrier number 36-3, after the distribution is completed 1:, the destination instruction of the carrier number 36-3 in the destination instruction table 76 of the sorting mechanism 1a is set to "0".

This E When the work at work station STI is finished and the transport body 36 returns to the twisting mechanism 1a, if the destination instruction remains as station number rs TI J, it will be carried out again to work station ST1. This is to prevent this from happening.

When the work station STI completes the predetermined work on the carrier 36 with carrier number 36-3, a completion signal is issued to the host computer 75. Then, from the host computer 75, a foreign carrier number 3 is sent.
．． The next destination work station ST2, . . . of the conveyor 36 of No. 6-3 is designated. However, depending on the work progress status at the next destination work station ST2, etc., for example, the next destination work station ST2, etc.
,... is delayed, and the delayed work station ST2,... is the next destination of the transport body 3.
6, and the work stations ST2, . . . may get stuck. In addition, before transporting the carrier 36 with the carrier number 36-3 to the destination work station ST2, . . . There may be cases where it is necessary to bring in the transport body 36 first.
The next destination instruction for the carrier 36 of 6-3 is not instructed to the electronic control circuit 60 until the above-mentioned condition is resolved. In such a case, the carrier 36 with carrier number 36-3 is a carrier with no destination instruction whose destination instruction in the destination instruction table 76 is "0" until the above-mentioned condition is resolved. It becomes 36.

As mentioned above, if there is no destination instruction for the conveyor 36, the process in step 8120 of the main distribution control process determines that there is no destination instruction.It is the station rail 17 that has conveyed the conveyor 36. Determine whether or not (S
230). When the station rail 11 is the station rail 11, it is determined whether or not (a specific pair of bridge rails determined for each station rail 1) 0 is an overflow (S240). If there is no overflow, the station rail] 1
For each distribution arm 44, the rotation angle is calculated to determine how many times the number distribution arm 44 should be rotated in order to distribute the distribution to a specific pair of bridge rails 10 determined for each distribution arm 44.
The rotation angle and destination rail number are stored and a distribution command is set (S250). In addition, in the case of overflow, the distribution arm 4 is assigned a number so that it can be distributed to bridge rails 10 that can be input other than the specific pair of bridge rails 10 determined for each (other station rail).
4 is rotated, and a distribution command is set for each distribution arm 44 based on the rotation angle and the destination rail number (S260). A specific pair of bridge rails 10 determined for each station rail 1 (for example, in this embodiment, the bridge rail 10 closest to the unloading section 11b of the station rail 1) is used, and a different bridge rail is used for each station rail 11. ] Let's define O. LX.

On the other hand, in 5230, when it is determined that it is not the station rail 11 that has transported the transport body 36, for example, if the transport body 36 is transported from the adjacent distribution mechanism 1b via the bridge rail 8 ( Bridge rail connected to the distribution mechanism 1b next to it]O
It is determined whether or not there is an overflow (S270). Then, if there is no overflow, select the number of distribution arm 4 to distribute it to that bridge rail 10.
4 is rotated, the rotation angle and the destination rail number are stored for each distribution arm 44, and a twist distribution command is set (3280).

In the case of overflow, how many times should the distribution arm 44 be rotated so that it can be distributed to a bridge rail 10 that can be input other than the bridge rail 10 connected to the neighboring bridge rail 1b? Then, the rotation angle and the destination rail number are stored for each distribution arm 44, and a distribution command is set (S290).

After that, repeat the process from 8160 onwards,
5250, 5260. The carriers 36 are distributed according to the distribution commands set by 5280 and 5290. Therefore, when there is no destination instruction, when the station rail 10 is transported, it is distributed to (a specific pair of bridge rails) 0. Also, when the bridge rail 10 is overflowing, it is distributed to (a specific pair of bridge rails) 0. Then, when there is no destination instruction and it is transported via the bridge rail 8 from the neighboring sorting mechanism 1b (to return it in the direction from which it came, the next sorting mechanism ] Bridge rail 1 connected to b
Allocate to 0. Also, when the bridge rail 0 is overflowing, it is distributed to other bridge rails 10 that can be input.

Second distribution control process (Each distribution mechanism 1a, 1b
, . . . are executed in each electronic control circuit.

Therefore, the transport body 36 whose destination instruction is the work station STI is transferred from the neighboring sorting mechanism 1b to the sorting mechanism 1.
When it is transported to a via the bridge rail 8,
If the station rail where the work station STI is located] 1 is overflowing (S130.520
0), it is distributed to the bridge rail 10 connected to the adjacent twisting mechanism]b so as to return it in the direction in which it came (S210).

Therefore, when this conveyance body 36 is carried into the adjacent distribution mechanism]b (by executing the distribution control process of another
The destination instruction is work station ST], so
Once again, it is sent back to this sorting mechanism [a]. As a result, the carrier 36 is moved to the sorting mechanism 1 until the overflow condition on the station rail 11 is resolved.
Since the information is exchanged between a and ]b, the work station S
T] will not be transported far away.

When the overflow condition is resolved, the fl is immediately transported to the station rail 11, reducing the time required for two-way work and improving work efficiency.

Further, if the destination of the overflow is the bridge rail 10 (S130.5200), another inputtable bridge rail 10f=, the distribution mechanism 1a of this embodiment
In this case, the bridge rail 8 is transferred from the adjacent distribution mechanism 1b.
The destination is the bridge rail] 0 (
Destination rail number ■), and if it overflows, other bridge rails 10 that can be input (only the upper destination rail number ■, so return in the direction from which you came):, the next distribution mechanism. Bridge rail connected to 1b] Sort to 0 (destination rail number ■) (S
220). As a result, similar to the process of S2]0 described above, the conveyance body 3 is
6! Since the material is exchanged between the mass sorting mechanisms 1a and 1b, when the overflow condition is resolved, the material can be quickly transported to the bridge rail 10. This shortens the processing time and improves work efficiency.

On the other hand, if there is no destination instruction (S120) and the station has been transported from station rail 1 (S23
0), in the case of this embodiment (when the work at the front work station ST1 is completed and the conveyance body 36-3 is conveyed to the sorting mechanism 1a) (when the specific bridge rail 10 (
destination rail number ■) (S250). Then, in the same way as described above, the distribution mechanisms 1a and 1b communicate with each other until the next destination instruction is received from the host computer 75. Therefore, the conveyor 36-3 is not transported to a far away place that is unrelated to the next destination instruction, and when the next destination instruction is given, it is immediately transported to that destination. is shortened, improving work efficiency. Further, when a specific pair of bridge rails 10 is overflowing (S240), the overflow is distributed to another inputtable bridge rail 10 (destination rail number ■) (S260), and work efficiency is similarly improved.

Furthermore, if there is no destination instruction (S120) and, for example, the transfer is carried from the adjacent sorting mechanism 1b via the bridge rail 8 (S230), the 1st direction is returned in the direction from which it came.
:, Distributes to the bridge rail 10 (destination rail number ■) connected to the adjacent distributing mechanism 1b (S 280
”).Therefore, when the next destination is instructed through communication between the distribution mechanisms 1a and 1b, the distribution is promptly distributed to that destination, which similarly improves work efficiency.In addition, the bridge rail 10 (destination rail number (2) is overflowing (S270), it is distributed to another inputable bridge rail 10 (destination rail number (2)) (S290), and work efficiency is similarly improved.

Note that the number reading means 39 works as the number reading means M],
Sorting mechanisms 1a,]b,..., and 5160-31
The process 90 works as the distribution means M2. Also, 51
20 acts as destination determination means M3, and the overflow switch 40 and 5130, 5240,
Execution of the 5270(7) process functions as a regulation excess detection means M4. Furthermore, 5140, and 5200-322
0 acts as the first setting means M5, and 52
The execution of the processes 30 to 5290 works as the second setting means M6.

The present invention is not limited to these embodiments in any way, and may be implemented in various forms without departing from the gist of the present invention. In the above embodiment, the distribution arm 44
Eight distribution arms 44 are arranged radially every 45 degrees, but depending on the application, the number of distribution arms 44 can be increased to, for example, 36
You may use 10 pieces every other time.

[Effects of the Invention] As described in detail above, even if a conveyance device of the present invention (friend) is conveyed without a destination indication, or if a conveyance body has a destination indication but the rail to which the conveyance bodies should be sorted overflows. Even if the condition is resolved, the conveyed object will not be transported to a faraway place unrelated to its next destination, and
As soon as the condition is resolved, the product is transported to its destination, which has the effect of shortening the processing time and improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the basic configuration of the present invention. FIG. 2 is a plan view mainly showing the schematic configuration of rails of a conveying device which is an embodiment of the present invention, and FIG. 3 is a side view of the same, and FIG. 4 is a plan view showing the drive configuration of the distribution mechanism of this embodiment, FIG. 5 is a sectional view taken along line AA in FIG. 4, FIG. 6 is a sectional view taken along line BB in FIG. 4, and FIG. 5 is a sectional view taken along line CC in FIG. 5, FIG. 8 is a sectional view taken along line DD in FIG. 5, and FIG. 9 is a block diagram showing the configuration of the electrical system of this embodiment. Flowchart showing distribution control processing performed in 1st
FIG. 1 is an explanatory diagram showing a light direction instruction table for a conveying body according to this embodiment, and FIG. 12 is an explanatory diagram showing a conveying body distribution table according to this embodiment. M]...Number reading means M2...Distributing means M3...-Destination determining means M4...-Specification excess detection means M5...First setting means M6...Second setting means 1a, 1b...・Distribution mechanism 8.10...Bridge rail 11...Station rail 36...Transport body 39...Number reading device 40...Overflow switch 60...Electronic control circuit

Claims (1)

[Scope of Claims] A plurality of pairs of loading and unloading rails for loading and unloading conveyance bodies, a number reading means for reading the number of the conveying body, and a destination connected to the loading and unloading rails based on the read number. and a distributing means for distributing the conveying bodies to the unloading rails according to a distributing command set from an instruction, and a conveying device for conveying the conveying bodies, wherein the conveying bodies are conveyed from the carry-in rail to the distributing means. destination determination means for determining whether or not there is the destination instruction corresponding to the number; a regulation excess detection means for detecting an overflow of the carrier on each of the delivery rails; a first setting means for setting the distribution command to the corresponding carrying-out rail when the carrying-out rail is not the overflow, and to the other possible carrying-out rail when the carrying-out rail is the overflow; When there is no output rail, if the output rail of the pair connected to the other distribution means is not the overflow, the output rail of the pair connected to the distribution means is overflowed, and if the output rail of the pair connected to the other distribution means is the overflow, the output of the output rail that can be input is A transport device comprising: second setting means for setting the distribution command to the rails.