CN112938465A - Control method of pressure maintaining loading and unloading system - Google Patents
Control method of pressure maintaining loading and unloading system Download PDFInfo
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- CN112938465A CN112938465A CN202110083904.5A CN202110083904A CN112938465A CN 112938465 A CN112938465 A CN 112938465A CN 202110083904 A CN202110083904 A CN 202110083904A CN 112938465 A CN112938465 A CN 112938465A
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- Prior art keywords
- carrier
- pressure maintaining
- buffer
- discharging
- maintaining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/88—Separating or stopping elements, e.g. fingers
- B65G47/8807—Separating or stopping elements, e.g. fingers with one stop
- B65G47/8815—Reciprocating stop, moving up or down in the path of the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/905—Control arrangements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a control method of a flexible, full-automatic pressure-maintaining feeding and discharging system without adding artificial factors and potential safety hazards. The method is uniformly scheduled by an ALC system, can automatically detect each operation step, selects a proper pressure maintaining bin through operation to perform pressure maintaining processing, is more intelligent, and can inquire and monitor each state of a product; the whole automatic control system finishes feeding and discharging of a plurality of pressure maintaining bins by a material taking and discharging robot, saves the time for waiting for pressure maintaining of products, improves the production efficiency of the whole pressure maintaining processing flow, saves the production cost and also avoids the interference of manual factors. The invention can be applied to the field of logic control.
Description
Technical Field
The invention relates to the field of logic control, in particular to a control method of a pressure maintaining loading and unloading system.
Background
In the current industrial production, the processing of most of the produced products needs to be carried out a plurality of steps, and the operation control of each step is different, so that the feeding and discharging control needs to be carried out for many times. In the current processing production, the loading and unloading of products are carried out by using a manual or traditional automatic loading and unloading control system. However, the traditional automatic loading and unloading control system can only realize semi-automatic control, and an operator needs to perform auxiliary control, so that the processing condition of a product cannot be specifically monitored and inquired.
In the production process, industrial accidents are easy to generate along with the increase of labor intensity, the efficiency is low, the stability of the product quality by using manual feeding and discharging is not enough, and the production requirement of large batch and high quality can not be met. The traditional automatic feeding and discharging system has a complex structure and is inconvenient to maintain and not beneficial to the production of an automatic assembly line; the flexible processing characteristic is not possessed, the product change is difficult to adapt, and the adjustment of the product structure is not facilitated. The traditional automatic feeding and discharging system is large in size of a machine table required by product processing and feeding and discharging, high in cost required by installation, low in production efficiency and potential safety hazard to personnel, and auxiliary operation needs to be carried out manually when the product is processed and operated. The state quantity of the processed products can not be monitored in the processing process, and the control mode is complex and tedious.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a control method of a pressure-maintaining feeding and discharging system, which is flexible, fully automatic, free of manual factors and potential safety hazards.
The technical scheme adopted by the invention is as follows: in the control method, the pressure-maintaining loading and unloading system comprises an ALC system, at least one transmission belt, a material taking and placing robot and a plurality of pressure-maintaining bins, wherein the transmission belt is driven by a stepping motor, each transmission belt is sequentially provided with a buffer position, a working position and a material discharging position, a side pushing cylinder is arranged in the material incoming direction of the buffer position, a liftable buffer stop is arranged in the material discharging direction of the buffer position, a photoelectric detection sensor and a code scanning gun are further arranged on one side of the buffer position, a liftable working stop is arranged in the material discharging direction of the working position, and a jacking cylinder and a photoelectric detection sensor are arranged at the working position; the control method comprises the following steps of:
step 1: the carriers are discharged from a feeding port of the conveying belt, the conveying belt drives the carriers to move forwards, the buffer stops and rises, when 1 carrier reaches the buffer area, the buffer stops and blocks the carrier, the carrier stays at the buffer position, a side push cylinder in the material incoming direction of the buffer position extends out, and the carrier at the rear part is prevented from entering the buffer position;
step 2: the code scanning gun scans the carrier codes on the carrier positioned on the cache position, and then sends the scanned carrier codes to the ALC system, and the ALC system detects and confirms whether the carrier needs to be subjected to pressure maintaining processing operation;
and step 3: when the carrier located in the buffer position is detected not to need pressure maintaining processing operation, and no carrier is detected in the working position and the blanking position, the buffer stop descends, the carrier moves forwards, after the carrier reaches the working position, the buffer stop ascends to stop the next carrier, the carrier which does not need pressure maintaining continuously moves forwards, passes through the blanking position, continues to move, and finally flows out from a blanking port of the transmission belt to reach the next processing step;
and 4, step 4: when the fact that the carriers located in the buffer positions need pressure maintaining machining operation is detected, whether the carriers exist in the working positions or not is detected, if the carriers do not exist in the working positions, the buffer stops descending, the working positions stop ascending, the carriers move forwards, touch the working positions to stop moving, and stop moving and stay at the working positions;
and 5: after the carrier arrives at the work position, a jacking cylinder of the work position rises to jack the carrier, the carrier is waited to be taken by the material taking and placing robot to the pressure maintaining bin, the buffer on the other side stops rising to stop the next carrier arriving at the buffer position, the side pushing cylinder retreats to enable the carrier behind the buffer position to move forwards, and then the work stops falling;
step 6: the material taking and placing robot is automatically scheduled and controlled by a PLC internal system to carry out material taking and placing control, material taking operation is carried out on the carrier lifted at the working position, after material taking is finished, whether the pressure maintaining bin is idle or not is automatically detected by the PLC internal system, and if yes, the carrier is placed in the idle pressure maintaining bin to carry out pressure maintaining;
and 7: the PLC internal system automatically detects whether a pressure maintaining cabin has a carrier for completing pressure maintaining, after pressure maintaining is completed, whether a robot is idle is detected, when a material taking and placing robot is idle and a material discharging position has no carrier, a discharging cylinder rises, the material taking and placing robot takes out the carrier for completing pressure maintaining from the pressure maintaining cabin, the carrier is placed at a material discharging position, the discharging cylinder descends, the carrier is driven by a transmission belt to move forwards, and finally the carrier is discharged from a material discharging opening to reach the next processing step.
Further, in the step 6, the carrier is placed in an idle pressure maintaining cabin for pressure maintaining for 3 minutes.
Still further, the number of the transmission belts is two.
In addition, the number of the pressure holding chambers is sixteen.
The invention has the beneficial effects that: according to the pressure-maintaining feeding and discharging system, full-automatic control of pressure-maintaining feeding and discharging of the material taking and discharging robot is achieved, and the problems that the automation degree is low, the labor intensity of workers is high and the potential safety hazards are high in the current industrial production are solved; the whole automatic control system is simple and stable, is uniformly dispatched by an ALC system, can automatically detect each operation step, selects a proper pressure maintaining bin through operation to perform pressure maintaining processing, is more intelligent, and can inquire and monitor each state of a product; the whole automatic control system finishes feeding and discharging of a plurality of pressure maintaining bins by a material taking and discharging robot, saves the time for waiting for pressure maintaining of products, improves the production efficiency of the whole pressure maintaining processing flow, saves the production cost and also avoids the interference of manual factors.
Drawings
FIG. 1 is a schematic diagram of a simple structure of the pressure-maintaining loading and unloading system according to the present invention;
FIG. 2 is a logic block diagram of the loading of the method of the present invention;
FIG. 3 is a logic block diagram of the blanking process of the present invention.
Detailed Description
Specific examples of the present invention are as follows.
As shown in fig. 1, in the embodiment, the pressure maintaining loading and unloading system includes an ALC system, two conveying belts 1, a material taking and placing robot 2, and sixteen pressure maintaining bins 3. Transmission belt 1 is driven by step motor, has set gradually buffering position, work position and material level down on every transmission belt 1, be provided with the side push cylinder in the supplied materials direction of buffering position, when the side push cylinder gos forward, the back carrier stops at the rear of the supplied materials direction of buffering position, can not get into the buffering position again. The buffering that is provided with the liftable on the ejection of compact direction of buffering position blocks, and when the buffering stopped the rise, the carrier that gets into the buffering position can not remove again, stops at the buffering position. The buffer position is provided with a photoelectric detection sensor, and the sensor detects whether the carrier reaches the buffer position. The buffer position is provided with a code scanning gun, a carrier code on the carrier is scanned, and the scanned carrier code is sent to the ALC system.
A liftable cache barrier is arranged in the discharging direction of the cache position, a photoelectric detection sensor and a code scanning gun are further arranged on one side of the cache position, a liftable work barrier is arranged in the discharging direction of the work position, and a jacking cylinder and the photoelectric detection sensor are arranged at the work position; when the work block rises, the carrier entering the working position can not move any more and stays at the working position. The carrier can be jacked up when the jacking cylinder rises, and the standby robot is waited to take materials. The photoelectric detection sensor can detect whether the carrier reaches the working position.
And a discharging cylinder is arranged in the discharging direction of the discharging position, and a photoelectric detection sensor is arranged on the discharging position. And the discharging cylinder rises to wait for the discharging robot to discharge. Whether the carrier reaches the discharge position is detected by a photoelectric detection sensor. Get the blowing robot and go up unloading, the pressurize storehouse carries out the pressurize for 3 minutes to the carrier.
The control method of the pressure maintaining charging and discharging system comprises the following steps:
step 1: the carrier is from the material loading mouth blowing of transmission belt, and transmission belt drives the carrier and moves forward, and the buffer stops to rise, and when 1 carrier reachd the buffer area, the buffer stops to block the carrier, and the carrier stops in the buffer position, and the side push cylinder that comes the material side of buffer position stretches out, and the carrier at separation rear gets into the buffer position.
Step 2: the code scanning gun scans the carrier codes on the carrier positioned on the cache position, and then sends the scanned carrier codes to the ALC system, and the ALC system detects and confirms whether the carrier needs to be subjected to pressure maintaining processing operation.
And step 3: when the carrier located in the buffer position is detected not to need pressure maintaining processing operation, and when the working position and the blanking position are detected not to have the carrier, the buffer stop descends, the carrier moves forwards, after the carrier reaches the working position, the buffer stop ascends to stop the next carrier, the carrier which does not need pressure maintaining continues to move forwards, passes through the blanking position, continues to move, and finally flows out from a blanking port of the transmission belt to reach the next processing step.
And 4, step 4: when the carrier located in the buffer position is detected to need pressure maintaining machining operation, whether the carrier exists in the working position is detected, if the carrier does not exist in the working position, the buffer stop descends, the working position stops ascending, the carrier moves forwards, meets the working position stop, stops moving and stays at the working position.
And 5: after the carrier arrives at the work position, the jacking cylinder of the work position rises to jack the carrier, the carrier is waited to be taken by the material taking and placing robot to take the material to the pressure maintaining bin, the buffer memory on the other side stops rising, the next carrier arriving at the buffer memory position is prepared to be stopped, the side pushing cylinder retreats, the carrier behind the buffer memory position can move forwards, and then the work stops falling.
Step 6: the material taking and placing robot is automatically scheduled and controlled by a PLC internal system to carry out material taking and placing control, material taking operation is carried out on the carrier lifted at the working position, after material taking is finished, whether the pressure maintaining bin is idle or not is automatically detected by the PLC internal system, and if yes, the carrier is placed in the idle pressure maintaining bin to carry out pressure maintaining;
and 7: the PLC internal system automatically detects whether a pressure maintaining cabin has a carrier for completing pressure maintaining, after pressure maintaining is completed, whether a robot is idle is detected, when a material taking and placing robot is idle and a material discharging position has no carrier, a discharging cylinder rises, the material taking and placing robot takes out the carrier for completing pressure maintaining from the pressure maintaining cabin, the carrier is placed at a material discharging position, the discharging cylinder descends, the carrier is driven by a transmission belt to move forwards, and finally the carrier is discharged from a material discharging opening to reach the next processing step.
The method is uniformly scheduled by an ALC system, can automatically detect each operation step, selects a proper pressure maintaining bin through operation to perform pressure maintaining processing, is more intelligent, and can inquire and monitor each state of a product; the whole automatic control system finishes feeding and discharging of a plurality of pressure maintaining bins by a material taking and discharging robot, saves the time for waiting for pressure maintaining of products, improves the production efficiency of the whole pressure maintaining processing flow, saves the production cost and also avoids the interference of manual factors.
Claims (4)
1. A control method of a pressure-maintaining loading and unloading system comprises an ALC system, at least one transmission belt (1), a material taking and placing robot (2) and a plurality of pressure-maintaining bins (3), wherein the transmission belt (1) is driven by a stepping motor, each transmission belt (1) is sequentially provided with a buffer position, a working position and a material unloading position, a side-pushing cylinder is arranged in the incoming material direction of the buffer position, a liftable buffer stop is arranged in the discharging direction of the buffer position, a photoelectric detection sensor and a code scanning gun are further arranged on one side of the buffer position, a liftable working stop is arranged in the discharging direction of the working position, and a jacking cylinder and a photoelectric detection sensor are arranged at the working position; the blanking device is characterized in that the control method comprises the following steps:
step 1: the carriers are discharged from a feeding port of the conveying belt, the conveying belt drives the carriers to move forwards, the buffer stops and rises, when 1 carrier reaches the buffer area, the buffer stops and blocks the carrier, the carrier stays at the buffer position, a side push cylinder in the material incoming direction of the buffer position extends out, and the carrier at the rear part is prevented from entering the buffer position;
step 2: the code scanning gun scans the carrier codes on the carrier positioned on the cache position, and then sends the scanned carrier codes to the ALC system, and the ALC system detects and confirms whether the carrier needs to be subjected to pressure maintaining processing operation;
and step 3: when the carrier located in the buffer position is detected not to need pressure maintaining processing operation, and no carrier is detected in the working position and the blanking position, the buffer stop descends, the carrier moves forwards, after the carrier reaches the working position, the buffer stop ascends to stop the next carrier, the carrier which does not need pressure maintaining continuously moves forwards, passes through the blanking position, continues to move, and finally flows out from a blanking port of the transmission belt to reach the next processing step;
and 4, step 4: when the fact that the carriers located in the buffer positions need pressure maintaining machining operation is detected, whether the carriers exist in the working positions or not is detected, if the carriers do not exist in the working positions, the buffer stops descending, the working positions stop ascending, the carriers move forwards, touch the working positions to stop moving, and stop moving and stay at the working positions;
and 5: after the carrier arrives at the work position, a jacking cylinder of the work position rises to jack the carrier, the carrier is waited to be taken by the material taking and placing robot to the pressure maintaining bin, the buffer on the other side stops rising to stop the next carrier arriving at the buffer position, the side pushing cylinder retreats to enable the carrier behind the buffer position to move forwards, and then the work stops falling;
step 6: the material taking and placing robot is automatically scheduled and controlled by a PLC internal system to carry out material taking and placing control, material taking operation is carried out on the carrier lifted at the working position, after material taking is finished, whether the pressure maintaining bin is idle or not is automatically detected by the PLC internal system, and if yes, the carrier is placed in the idle pressure maintaining bin to carry out pressure maintaining;
and 7: the PLC internal system automatically detects whether a pressure maintaining cabin has a carrier for completing pressure maintaining, after pressure maintaining is completed, whether a robot is idle is detected, when a material taking and placing robot is idle and a material discharging position has no carrier, a discharging cylinder rises, the material taking and placing robot takes out the carrier for completing pressure maintaining from the pressure maintaining cabin, the carrier is placed at a material discharging position, the discharging cylinder descends, the carrier is driven by a transmission belt to move forwards, and finally the carrier is discharged from a material discharging opening to reach the next processing step.
2. The control method of the pressure-maintaining loading and unloading system according to claim 1, wherein: and 6, placing the carrier in an idle pressure maintaining cabin for pressure maintaining for 3 minutes.
3. The control method of the pressure-maintaining loading and unloading system according to claim 1, wherein: the number of the transmission belts is two.
4. The control method of the pressure-maintaining loading and unloading system according to claim 1, wherein: the number of the pressure maintaining bins is sixteen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110083904.5A CN112938465A (en) | 2021-01-21 | 2021-01-21 | Control method of pressure maintaining loading and unloading system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110083904.5A CN112938465A (en) | 2021-01-21 | 2021-01-21 | Control method of pressure maintaining loading and unloading system |
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| CN112938465A true CN112938465A (en) | 2021-06-11 |
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| CN202110083904.5A Pending CN112938465A (en) | 2021-01-21 | 2021-01-21 | Control method of pressure maintaining loading and unloading system |
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Application publication date: 20210611 |
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