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CN111252492B - Intelligent production line scheduling system - Google Patents

Intelligent production line scheduling system Download PDF

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Publication number
CN111252492B
CN111252492B CN202010290757.4A CN202010290757A CN111252492B CN 111252492 B CN111252492 B CN 111252492B CN 202010290757 A CN202010290757 A CN 202010290757A CN 111252492 B CN111252492 B CN 111252492B
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China
Prior art keywords
processing station
conveying
processing
tray
stopping
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CN202010290757.4A
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Chinese (zh)
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CN111252492A (en
Inventor
王叶君
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Zhejiang Youzhi Iot Technology Co ltd
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Zhejiang Youzhi Iot Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G37/00Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
    • B65G37/02Flow-sheets for conveyor combinations in warehouses, magazines or workshops
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00Control devices, e.g. for safety, warning or fault-correcting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/88Separating or stopping elements, e.g. fingers
    • B65G47/8876Separating or stopping elements, e.g. fingers with at least two stops acting as gates
    • B65G47/8884Stops acting asynchronously, e.g. one stop open, next one closed or the opposite
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90Devices for picking-up and depositing articles or materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02Articles
    • B65G2201/0235Containers
    • B65G2201/0258Trays, totes or bins

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)

Abstract

The invention discloses an intelligent production line scheduling system which comprises a plurality of conveying units, wherein each conveying unit is an independent processing position, each processing position is provided with at least two carrying manipulators, and a first stopping mechanism, a jacking mechanism and a second stopping mechanism are sequentially arranged on a conveying line of each conveying unit. The invention can set the flow direction of the tray according to the target requirement of the workpiece and the state of workshop processing equipment, carry out overall planning on the processing positions of the same process, separately distribute the trays to enter each processing position, greatly increase the working efficiency of all the processing positions, adjust the production process according to the actual production requirement of a client, realize the scheduling of the trays of multiple varieties and multiple positions and effectively improve the resource utilization rate.

Description

Intelligent production line scheduling system
Technical Field
The invention relates to a material conveying system, in particular to an intelligent production line scheduling system.
Background
And along with automatic application, automatic transport handling system has appeared, including roller transfer chain, transport truss robot, positioning mechanism, stop mechanism and frock bearing mechanism, transport truss robot erects directly over the roller transfer chain, and positioning mechanism is located the rear of transport truss robot and installs in one side of roller transfer chain, and stop mechanism is located positioning mechanism's rear and installs on the roller transfer chain, and frock bearing mechanism is located the end of roller transfer chain erects directly over the roller transfer chain, and the cooperation is equipped with frock climbing mechanism directly under the frock bearing mechanism, generally is used for replacing simple manually operation.
But the transfer chain among the current transport handling system is the sectional type setting, the end of every transfer chain all is the processing position, after article got into first processing position through first transfer chain and accomplished first process, need the transport robot to carry it to the second transfer chain on, accomplish the second process, so on, when every product need process multichannel process, just need the transport robot to carry many times, cause the wearing and tearing of product etc. easily in the handling, and the transfer chain area that the sectional type set up is big.
Meanwhile, when the existing conveying and carrying system is used, a product to be processed is moved to the tool jacking mechanism after being blocked by the blocking mechanism, the conveying truss robot needs to move the jacked product to be processed to a processing position for processing, then the processed product is moved back to the tool jacking mechanism, after the tool jacking mechanism descends, the processed product continues to move on the conveying line, and in the process, the next product to be processed is always blocked by the blocking mechanism and is in a waiting state, so that the working efficiency of the conveying and carrying system is low.
Disclosure of Invention
The invention aims to provide an intelligent production line scheduling system which can meet the product conveying and carrying functions of a short production line or a long production line and can optimize the functions of equipment so as to achieve the maximum efficiency.
Therefore, the technical scheme of the invention is as follows: the utility model provides an intelligent production line dispatch system which characterized in that: the automatic conveying device comprises a plurality of conveying units, wherein each conveying unit is an independent machining position, each machining position is provided with at least two conveying mechanical arms, and a conveying line of each conveying unit is sequentially provided with a first stopping mechanism, a jacking mechanism and a second stopping mechanism;
the method specifically comprises the following steps:
1) the unprocessed tray enters a processing position along with the conveying line, and if the processing position is a first processing position, the step 2) is carried out; otherwise, entering the step 4);
2) assuming that a conveying mechanical arms of the subsequent working positions have a idle stations, and entering the step 3 when a is larger than 0); when a is equal to 0, the conveying manipulators of the subsequent working positions are in a busy state, and the first stopping mechanism of the first machining position is in a blocking state;
3) assuming that the number of unprocessed pallets released by the first stop mechanism of the first processing station is b, when a > b, entering step 4); when a is less than or equal to b, the first stopping mechanism of the first processing station is in a blocking state;
4) the first stopping mechanism of the processing station is released, and the unprocessed tray moves to the jacking mechanism and is blocked by the second stopping mechanism;
5) an RFID information reader-writer is arranged on the jacking mechanism, an information tag is arranged on the unprocessed tray, and processing information is recorded on the information tag; when the finished processing information of the tray is read, entering the step 9); otherwise, entering step 6);
6) if the carrying manipulators of the current processing station are all in busy states, entering the step 9); otherwise, entering step 7);
7) if the subsequent processing station is in an idle state and the carrying manipulator of the subsequent processing station is in an idle state, entering the step 9); otherwise, entering step 8);
8) lifting the unprocessed tray by the jacking mechanism of the processing station, moving the unprocessed tray to processing equipment by the carrying manipulator, placing the processed tray at the jacking mechanism by the other carrying manipulator after the unprocessed tray is processed, descending the jacking mechanism, and entering the step 5);
9) the second stopping mechanism of the processing station is changed into a release state, so that the tray enters the next processing station.
Further, in the step 4), the first stopping mechanism of the processing station is released, if the jacking mechanism of the processing station is at a low position, the second stopping mechanism has no blocked tray, and a carrying manipulator of the processing station or a subsequent processing station is in an idle state; otherwise, the first stopping mechanism of the processing station is still in a blocking state.
Further, assuming that the remaining required processing time + the tact interval on the nth processing station is T, the time required for the tray to move from the first stopping mechanism of the first processing station to the second stopping mechanism of the nth processing station is T, and when T < T, the carrying manipulator of the nth processing station is judged to be in an idle state.
Further, all the unprocessed pallets are blocked by the first stopping mechanism of the first processing station and stored in front of the first stopping mechanism of the first processing station.
Furthermore, the maximum number of processing positions in the same process in the whole conveying system is Ta/Tb, Ta is the takt time of the process, and Tb is the conveying time of the conveying line of a single processing position.
Furthermore, the second stopping mechanism comprises a stopping screw rod which is parallel to the conveying line and is driven by the stopping power failure machine; the stop screw rod is provided with a stop sliding block matched with the stop screw rod, the stop sliding block is provided with a rotary clamping cylinder, the end part of a cylinder rod of the rotary clamping cylinder is fixedly provided with a long-strip-shaped stop dog, the cylinder rod drives the stop dog to rotate, the second stop mechanism is in a stop state when the stop dog is vertically arranged, and the second stop mechanism is in a release state when the stop dog is horizontally arranged.
Furthermore, the jacking mechanism comprises a jacking cylinder which is longitudinally arranged, and a jacking bracket is arranged on a cylinder rod of the jacking cylinder and drives the jacking bracket to move up and down; the jacking mechanism is positioned between the first stopping mechanism and the second stopping mechanism.
According to the invention, a plurality of carrying manipulators are arranged at each processing position, one type of carrying manipulator can clamp and place a tray in a processing area to wait for the previous tray to finish processing, and the other type of carrying manipulator can clamp and take back the finished tray to the conveying mechanism, so that the whole process is carried out synchronously and is not influenced mutually, equipment at the processing position does not need to wait, production can be carried out all the time, and the production efficiency is greatly improved.
The invention meets the application requirement of a longer production line in a unitized mode by combining a plurality of conveying units according to the actual production requirement. According to the processing requirement, the conveying units of the corresponding processing stations are selected, and a complete intelligent integrated processing and conveying system is formed after splicing, so that the conveying robots arranged among the segmented conveying lines are reduced, and the working efficiency is greatly improved.
The invention can set the flow direction of the tray according to the target requirement of the workpiece and the state of workshop processing equipment, carry out overall planning on the processing positions of the same process, separately distribute the trays to enter each processing position, greatly increase the working efficiency of all the processing positions, adjust the production process according to the actual production requirement of a client, realize the scheduling of the trays of multiple varieties and multiple positions and effectively improve the resource utilization rate.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
FIG. 1 is a schematic diagram of the overall system;
FIG. 2 is a schematic structural view of a handling robot;
FIG. 3 is a schematic structural view of a conveying mechanism;
FIG. 4 is a schematic view of a blocking state of the second stopping mechanism;
fig. 5 is a schematic view of a release state of the second stopping mechanism;
FIG. 6 is a schematic structural view of a jacking mechanism;
FIG. 7 is a schematic view of the structure of the guardrail;
FIG. 8 is a schematic view of the adjustment mechanism;
FIG. 9 is a block flow diagram of the present invention.
Labeled as:
the conveying mechanism 1, a first conveying belt 11, a second conveying belt 12 and a fluency strip 13;
a first gear stop mechanism 2;
the jacking mechanism 3, the jacking cylinder 31 and the jacking bracket 32;
the second gear stop mechanism 4, a gear stop screw rod 41, a gear stop slide block 42, a rotary clamping cylinder 43, a stop block 44 and a gear stop motor 45;
a processing platform 5;
the conveying device comprises a conveying manipulator 6, a first conveying manipulator 61, a second conveying manipulator 62, a clamping part 63, a rotating bracket 64, a synchronous pulley set 65, a rotating driving motor 66, a longitudinal cylinder 67, a longitudinal slide rail 68, a transverse motor 69, a transverse screw rod 70, a transverse drag chain 71 and a longitudinal drag chain 72;
the width adjusting mechanism 8, a coupler 80, a first screw rod 81, a second screw rod 82, a first movable block 83, a second movable block 84, a first guide rail 85, a second guide rail 86, a first slide block 87 and a second slide block 88;
adjusting mechanism 9, adjusting bracket 91, mounting plate 92, adjusting bolt 93, guide pillar 94, compression spring 95, axle sleeve 96, scale bar 97.
Detailed Description
See the drawings. The conveying system comprises each conveying unit, and according to the processing demand, can select the conveying unit of corresponding processing station, form complete intelligent integration processing, conveying system after the amalgamation.
The conveying unit comprises a rack, a conveying mechanism 1 is mounted on the rack, the conveying mechanism comprises double conveying belts which are arranged in parallel, a tray is placed on the double conveying belts and is driven to move, and the tray is used for placing an article to be processed; in the advancing process of the tray, a first stopping mechanism 2 for stopping the advance of the tray, a jacking mechanism 3 for jacking the tray and a second stopping mechanism 4 for stopping the advance of the tray are respectively arranged; the processing platform is characterized in that a processing platform 5 is arranged on one side of the rack, at least two carrying manipulators 6 are arranged on the processing platform 5, namely a first carrying manipulator 61 and a second carrying manipulator 62, and the tray is carried to the processing platform 5 from the jacking mechanism 3 and is carried back to the jacking mechanism 3 from the processing platform 5.
The carrying manipulator 6 comprises a clamping part 63 which is provided with two claw ends which can move oppositely or oppositely; the clamping part 63 is mounted on a rotating bracket 64 through a rotating shaft, one end of the rotating shaft is fixed with the clamping part, and the other end of the rotating shaft is connected with a rotating driving motor 66 through a synchronous pulley set 65 and is controlled by the driving motor to drive the clamping part 63 to horizontally rotate 360 degrees; and further comprises a longitudinal moving component for controlling the lifting of the clamping part 63 and a transverse moving component for controlling the horizontal movement of the clamping part 63.
The longitudinal moving assembly comprises a longitudinal cylinder 67, a longitudinal sliding rail 68 and a longitudinal sliding block, the rotating support 64 is fixedly mounted on the longitudinal sliding block, the longitudinal sliding block is movably matched with the longitudinal sliding rail, the longitudinal sliding block is connected with a cylinder rod of the longitudinal cylinder 67, and the longitudinal cylinder 67 drives the longitudinal sliding block to move along the longitudinal sliding rail, so that the clamping part 63 can move in the vertical direction.
The transverse moving assembly comprises a transverse motor 69, a transverse screw rod 70 and a transverse moving block, the transverse motor 69 drives the transverse screw rod 70 to rotate, so that the transverse moving block in spiral fit with the transverse screw rod 70 moves horizontally, and the longitudinal moving assembly is installed on the transverse moving block, so that the clamping part 63 moves back and forth in the horizontal direction. The carrying manipulator is further provided with a transverse drag chain 71 and a longitudinal drag chain 72 which are used for binding cables and facilitating the movement of the clamping part in the horizontal direction and the vertical direction.
The conveying mechanism 1 comprises two conveying belts which are arranged in parallel, namely a first conveying belt 11 and a second conveying belt 12 which run in the same direction and synchronously, wherein the first conveying belt and the second conveying belt are both belts driven by belt pulleys and are respectively arranged on two bases which are arranged in parallel; the belt pulley is driven by a motor, and the side surface of the belt pulley is provided with an emergency stop/start button, so that the belt pulley can be stopped for inspection at the first time when abnormal conditions occur.
During the actual use, the demand that needs the conveying line body of different width when having different specification trays to carry. Therefore, the conveying mechanism 1 also comprises a width adjusting mechanism 8 for adjusting the distance between the two conveying belts; the width adjusting mechanism 8 comprises a first screw rod 81 and a second screw rod 82 which are connected by a coupler 80, the spiral directions of the first screw rod and the second screw rod are opposite, and the first screw rod 81 is connected with a width adjusting driving motor through a belt pulley set; the first screw rod 81 and the second screw rod 82 are both provided with a first movable block 83 and a second movable block 84 which are spirally matched with the first screw rod 81 and the second screw rod 82, and bases of the first conveying belt 11 and the second conveying belt 12 are respectively fixed on the first movable block 83 and the second movable block 84; when the driving motor drives the first lead screw 81 to rotate through the belt pulley, the first lead screw 81 drives the second lead screw 82 through the coupler 80, so that the first movable block and the second movable block move on the two lead screws, the spiral directions on the first lead screw and the second lead screw are opposite, the first conveying belt 11 and the second conveying belt 12 are driven to move relatively or move towards opposite directions, and the distance between the two conveying belts is adjusted.
In order to make the first and second conveyor belts move more stably, two ends of the conveyor belts are respectively provided with a linear guide rail group, each linear guide rail group comprises a first guide rail 85 and a second guide rail 86 which are arranged in parallel and are mutually vertical to the conveyor belts, the first guide rail 85 and the second guide rail 86 are provided with a first sliding block 87 and a second sliding block 88 which are matched with the first guide rail 85 and the second guide rail, and bases of the first and second conveyor belts are respectively fixed on the two sliding blocks; when the conveyer belt is driven by the screw rod and the movable block, the two slide blocks fixed with the conveyer belt respectively drive the first conveyer belt and the second conveyer belt to stably move along the first guide rail and the second guide rail.
Two sides of the conveying mechanism 1 serve as guardrails through fluent strips 13 which are arranged in parallel, and rollers are arranged on the inner sides of the fluent strips; two ends of the fluency strip 13 are respectively provided with an adjusting mechanism 9, each adjusting mechanism 9 comprises an adjusting bracket 91 and a mounting plate 92, and the adjusting brackets 91 are fixed on two sides of the conveying mechanism 1; an adjusting bolt 93 is mounted in the middle of the adjusting bracket 91, guide posts 94 parallel to the adjusting bolt are arranged on two sides of the adjusting bracket 91, a screw hole is formed in the mounting plate 92 and is in threaded fit with the adjusting bolt 93, a compression spring 95 is sleeved on the adjusting bolt, one end of the compression spring 95 abuts against the mounting plate 92, and the other end of the compression spring 95 abuts against the adjusting bracket 91; the mounting plate 92 is also provided with a through hole, a shaft sleeve 96 is arranged in the through hole and is sleeved on the guide post, the mounting plate 92 is fixed with the fluency strip 13, and the adjusting bolt 93 can enable the mounting plate 92 to move along the guide post 94 and drive the fluency strip 13 to move; adjust support 91 one side and be equipped with scale strip 97, the mounting panel is mutually perpendicular with the scale strip, and the side and the scale strip laminating of mounting panel can remove fluent more accurately.
The second stopping mechanism 4 comprises a slide rail, a stopping screw rod 41 and a stopping power machine 45, the slide rail is arranged between the first conveying belt and the second conveying belt in parallel, the driving motor is positioned on one side of the slide rail, the stopping screw rod 41 is driven by the stopping power machine 45 and is in threaded fit with the stopping slide block 42, and the stopping slide block 42 is arranged on the slide rail and is in sliding fit with the slide rail; the stop motor drives the stop screw rod to rotate, so that the stop slide block 42 moves along the slide rail; the gear stopping slide block 42 is provided with a rotary clamping cylinder 43, the end part of a cylinder rod of the rotary clamping cylinder 43 is fixed with a long-strip-shaped stop dog 44, the cylinder rod drives the stop dog 44 to rotate, when the cylinder is clamped, the stop dog 44 is vertically arranged, the second gear stopping mechanism 4 is in a stopping state, and when the cylinder is loosened, the cylinder rod drives the stop dog to rotate, so that the stop dog 44 is horizontally arranged, and the second gear stopping mechanism 4 is in a releasing state. When the stop block is horizontally arranged, the second stop mechanism is lower than the first conveying belt and the second conveying belt, the tray can move without hindrance, and when the stop block is vertically arranged, the stop block is higher than the first conveying belt and the second conveying belt, and the tray can be prevented from moving.
The jacking mechanism 3 comprises a jacking cylinder 31 which is longitudinally arranged, and a jacking bracket 32 is arranged on a cylinder rod of the jacking cylinder 31 and drives the jacking bracket to move up and down. Normal state, jacking support are in the low level, are less than the height of first, second conveyer belt, and the tray can move on jacking support, then jacking support holds up the tray, the clamping part centre gripping tray of the manipulator of being convenient for transport. In actual work, 2 or more trays can be continuously conveyed to the conveying line, the jacking mechanism 3 can only jack up one tray at a time, and when the tray is jacked up, the subsequent tray must be blocked in advance. Therefore, a first stopping mechanism 2 for stopping the tray from moving is arranged in front of the jacking mechanism and is positioned between the double conveyor belts. The first blocking mechanism comprises a vertical blocking cylinder and is fixed on a mounting panel in the middle of the conveying line.
All be equipped with the information label on every tray, the information label can contain the processing information of article on the tray, be equipped with the RFID information reader writer of reading the information label on climbing mechanism 3, all trays move to climbing mechanism position and all can be blocked by second stop mechanism, the content of information label on every tray can be read to the RFID information reader writer, if judge that article on this tray need not process at this station, then directly release to next station, if judge that article on this tray need process at this station, then carry tray to processing platform processing.
The actual operation is shown in fig. 9:
1) placing an unprocessed article on a tray (hereinafter referred to as an 'unprocessed tray'), wherein the unprocessed tray is placed on a first conveyor belt and a second conveyor belt and enters a processing position along with the conveyor belts, and if the processing position is the first processing position, entering the step 2); otherwise, entering the step 4); all the unprocessed trays are stored at the first stopping mechanism of the first processing station, and unprocessed materials are not stored at the first stopping mechanism of the subsequent processing station.
2) Assuming that a conveying mechanical arms of the subsequent working positions have a idle stations, and entering the step 3 when a is larger than 0); when a is equal to 0, the conveying manipulators of the subsequent working positions are in a busy state, and the first stopping mechanism of the first machining position is in a blocking state; assuming that the sum of the residual required processing time and the beat interval on the nth processing station is T, the time required for the tray to move from the first stopping mechanism of the first processing station to the second stopping mechanism of the nth processing station is T, and when T is less than T, judging that the carrying manipulator of the nth processing station is in an idle state.
3) Assuming that the number of unprocessed pallets released by the first stop mechanism of the first processing station is b, when a > b, entering step 4); when a is less than or equal to b, the first stopping mechanism of the first processing station is in a blocking state;
4) if the jacking mechanism of the processing position is at a low position, the second stopping mechanism is not provided with a blocked tray, and the processing position or the subsequent processing position is provided with a carrying manipulator in an idle state, the first stopping mechanism of the processing position is released, and the unprocessed tray moves to the jacking mechanism and is blocked by the second stopping mechanism; otherwise, the first stopping mechanism of the processing station is still in a blocking state and continues to wait;
5) an RFID information reader-writer is arranged on the jacking mechanism, an information tag is arranged on the unprocessed tray, and processing information is recorded on the information tag; if the information reader-writer on the jacking mechanism reads the processing information of the tray, the tray is indicated to finish the process of the processing position, and the step 9) is carried out; otherwise, entering step 6);
6) if the carrying manipulators of the current processing station are all in busy states, entering the step 9); otherwise, entering step 7);
7) if the subsequent processing station is in an idle state and the carrying manipulator of the subsequent processing station is in an idle state, entering the step 9); otherwise, entering step 8);
8) lifting an unprocessed tray by a jacking mechanism of the processing station, moving the unprocessed tray to processing equipment by a carrying manipulator or waiting for the processing of the previous tray to be completed, lifting the jacking mechanism after the processing is completed, putting the processed tray back to the jacking mechanism by another carrying manipulator, then descending the jacking mechanism, writing processing information into an information tag of the tray by an information reader-writer, and then entering the step 5);
9) the second stopping mechanism of the processing station is changed into a release state, so that the tray enters the next processing station.

Claims (7)

1. The utility model provides an intelligent production line dispatch system which characterized in that: the automatic conveying device comprises a plurality of conveying units, wherein each conveying unit is an independent machining position, each machining position is provided with at least two conveying mechanical arms, and a conveying line of each conveying unit is sequentially provided with a first stopping mechanism, a jacking mechanism and a second stopping mechanism;
the method specifically comprises the following steps:
1) the unprocessed tray enters a processing position along with the conveying line, and if the processing position is a first processing position, the step 2) is carried out; otherwise, entering the step 4);
2) assuming that a conveying mechanical arms of the subsequent working positions have a idle stations, and entering the step 3 when a is larger than 0); when a =0, the conveying manipulators of the subsequent working positions are in busy states, and the first stopping mechanism of the first processing position is in a blocking state;
3) assuming that the number of unprocessed pallets released by the first stop mechanism of the first processing station is b, when a > b, entering step 4); when a is less than or equal to b, the first stopping mechanism of the first processing station is in a blocking state;
4) the first stopping mechanism of the processing station is released, and the unprocessed tray moves to the jacking mechanism and is blocked by the second stopping mechanism;
5) an RFID information reader-writer is arranged on the jacking mechanism, an information tag is arranged on the unprocessed tray, and processing information is recorded on the information tag; when the finished processing information of the tray is read, entering the step 9); otherwise, entering step 6);
6) if the carrying manipulators of the current processing station are all in busy states, entering the step 9); otherwise, entering step 7);
7) if the subsequent processing station is in an idle state and the carrying manipulator of the subsequent processing station is in an idle state, entering the step 9); otherwise, entering step 8);
8) lifting the unprocessed tray by the jacking mechanism of the processing station, moving the unprocessed tray to processing equipment by the carrying manipulator, placing the processed tray at the jacking mechanism by the other carrying manipulator after the unprocessed tray is processed, descending the jacking mechanism, and entering the step 5);
9) the second stopping mechanism of the processing station is changed into a release state, so that the tray enters the next processing station.
2. An intelligent production line dispatching system as recited in claim 1, wherein: in the step 4), the first stopping mechanism of the processing station is released, if the jacking mechanism of the processing station is at a low position, the second stopping mechanism is not provided with a blocked unprocessed tray, and a carrying manipulator of the processing station or a subsequent processing station is in an idle state; otherwise, the first stopping mechanism of the processing station is still in a blocking state.
3. An intelligent production line dispatching system as recited in claim 1, wherein: assuming that the sum of the residual required processing time and the beat interval on the nth processing station is T, the time required for the unprocessed tray to move from the first stopping mechanism of the first processing station to the second stopping mechanism of the nth processing station is T, and when T is less than T, judging that the carrying manipulator of the nth processing station is in an idle state.
4. An intelligent production line dispatching system as recited in claim 1, wherein: all the unprocessed pallets are blocked by the first stopping mechanism of the first processing station and stored in front of the first stopping mechanism of the first processing station.
5. An intelligent production line dispatching system as recited in claim 1, wherein: the maximum number of processing positions of the same process in the whole conveying system is Ta/Tb, Ta is the beat time of the process, and Tb is the conveying time of the conveying line of a single processing position.
6. An intelligent production line dispatching system as recited in claim 1, wherein: the second stopping mechanism comprises a stopping screw rod, and the stopping screw rod is parallel to the conveying line and is driven by the stopping power failure machine; the stop screw rod is provided with a stop sliding block matched with the stop screw rod, the stop sliding block is provided with a rotary clamping cylinder, the end part of a cylinder rod of the rotary clamping cylinder is fixedly provided with a long-strip-shaped stop dog, the cylinder rod drives the stop dog to rotate, the second stop mechanism is in a stop state when the stop dog is vertically arranged, and the second stop mechanism is in a release state when the stop dog is horizontally arranged.
7. An intelligent production line dispatching system as recited in claim 1, wherein: the jacking mechanism comprises a jacking cylinder which is longitudinally arranged, and a jacking bracket is arranged on a cylinder rod of the jacking cylinder and drives the jacking bracket to move up and down; the jacking mechanism is positioned between the first stopping mechanism and the second stopping mechanism.
CN202010290757.4A 2019-08-23 2020-04-14 Intelligent production line scheduling system Active CN111252492B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910783203.5A CN110606344A (en) 2019-08-23 2019-08-23 Intelligent production line scheduling system
CN2019107832035 2019-08-23

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Publication Number Publication Date
CN111252492A CN111252492A (en) 2020-06-09
CN111252492B true CN111252492B (en) 2021-03-30

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Denomination of invention: An intelligent production line scheduling system

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