CN107991924B - Single-shaft shredder control process - Google Patents
Single-shaft shredder control process Download PDFInfo
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- CN107991924B CN107991924B CN201711217089.7A CN201711217089A CN107991924B CN 107991924 B CN107991924 B CN 107991924B CN 201711217089 A CN201711217089 A CN 201711217089A CN 107991924 B CN107991924 B CN 107991924B
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- 238000004519 manufacturing process Methods 0.000 abstract description 4
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- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2609—Process control
Abstract
The invention provides a control process of a single-shaft shredder, which relates to the technical field of control and comprises the following specific steps: 1. controlling the power supply to start and stop; 2. starting and stopping the equipment; 3. the material pushing box works; 4. detecting the current of the main motor after the starting is finished; 5. after the starting is finished for 3 seconds and the material pushing box is at the backward limiting position, material pushing circulation is started; 6. in the material pushing circulation process, if the current of the main motor is more than 90% In and the set time of T6 is passed, the material pushing box retreats to reduce the load and the retreating load reduction counter C3 is increased by 1; 7. the material pushing box retreats and the counter C2 is increased by 1, if the counter C2 reaches a set value, the material pushing box retreats to the retreating limit position directly, the retreating load shedding counter is reset, and then the steps 5 and 6 are repeated; if the counter C2 does not reach the set value, the material pushing box moves backwards for T11 set time, and then the step 6 is repeated. According to the invention, through optimizing the control time sequence, the time for partial working cycle to retreat from the half-way position to the retreat limiting position is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of control, in particular to a control process of a single-shaft shredder.
Background
The control program of the single-shaft shredder mainly comprises the starting and stopping of an oil pump, the forward and backward movement of a material pushing box and the starting and stopping of a main shaft; the starting sequence of the single-shaft shredder is as follows: the oil pump is started first, the material pushing box starts to retreat after 3 seconds, and the main shaft is started after 6 seconds; the main shaft is started in a star-delta voltage reduction starting mode, the current of a main shaft motor is detected by a control chip in real time, the control chip modulates the current of the main shaft motor into a form which can be recognized by a programmable logic controller and outputs a signal to the programmable logic controller; the programmable logic controller controls the material pushing box to move forward, move forward at a slow speed and move backward after the collected signals are subjected to operation and comparison; and meanwhile, if the current of the spindle motor detected by the programmable logic controller is far larger than the rated current, the spindle stops rotating forwards, the material pushing box retreats, the spindle automatically rotates backwards for a few seconds after the spindle is stopped stably, and then stops, and the spindle resumes rotating forwards again after the spindle is stopped stably.
The material pushing box in the existing product has the working mode that: when the pushing box normally works, the pushing box can automatically retreat to the retreating limit switch after triggering the advancing limit switch, and then the pushing box can push materials to advance. The defects of the existing working mode are as follows: the work stroke of the material pushing box is long and the idle stroke time is too long, so that the yield is not high. However, the working stroke of the material pushing box is determined by the yield requirement and the structure of the single-shaft shredder, so that the problem cannot be solved by shortening the working stroke of the material pushing box, and the working sequence of the material pushing box needs to be changed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a control process of a single-shaft shredder, optimizes a control time sequence and improves the production efficiency.
The invention is realized by adopting the following technical scheme:
a control flow of a single-shaft shredder comprises the following steps:
step 1, controlling the power supply to start and stop, pressing a power supply button, and controlling the power supply to be switched on; pressing down an emergency stop button to control the power supply to be disconnected;
step 2, starting and stopping the equipment, pressing a starting button and starting the equipment; pressing a stop button to stop the equipment;
step 3, the material pushing box works, after the equipment is started, the oil pump starts to work, the material pushing box retreats after 3S until the position of the retreating limit switch, and retreating is stopped; after 6S, the main motor rotates forwards, and after T1 for a set time, the starting is finished;
step 4, detecting the current of the main motor after the starting is finished, stopping the forward rotation of the main shaft if the current of the main motor is more than 120% In and the set time of T2 is passed, retreating the material pushing box, automatically reversing the main shaft for T4 set time after the main shaft is stopped stably after the set time of T3 is passed, stopping the rotation, and resuming the forward rotation of the main shaft after the set time of T5 is passed and the main shaft is stopped stably; each time of reversal, the reversal counter C1 is increased by 1, and when the current of the main motor is not greater than 120% In after 3S of starting is completed or the control power supply is disconnected, the reversal counter C1 is cleared; if the count of the inversion counter C1 reaches the threshold, the device stops;
step 5, after the starting is completed for 3S and the material pushing box is at the backward limiting position, material pushing circulation is started;
step 6, In the material pushing circulation process, if the current of the main motor is larger than 90% In and the set time of T6 is passed, the material pushing box retreats to reduce the load and the retreating load reduction counter C3 is increased by 1, after the set time of T12 is passed, if the current of the main motor is still larger than 90% In, the material pushing box continues to retreat to reduce the load, otherwise, the material pushing box stops, and then the material pushing box advances; in the advancing process of the material pushing box, if the current of the main motor is still greater than 80% In, the material pushing box is changed into slow material pushing; when the pushing box triggers the forward limit switch or leaves the backward limit switch for a set time of T9 or the backward load reduction counter C3 counts, the pushing box retreats to the backward limit switch, the backward load reduction counter is reset, and the steps 5 and 6 are repeated;
step 7, after pushing materials are triggered to move forward to a forward limit switch or leave a pushing box from a backward limit for a set time of T10, increasing 1 by a counter C4, or after the counter C4 is 1 and the pushing box moves forward for a set time of T13, the pushing box moves backward and the counter C2 increases 1, if the counter C2 reaches a set value, the pushing box directly moves backward to the backward limit, resetting the backward load reduction counter and repeating the steps 5 and 6; if the counter C2 does not reach the set value, the material pushing box moves backwards for T11 set time, and then the step 6 is repeated.
Preferably, the T1 setting time in the step 3 is 7-9S; t2 in the step 4 sets time to be 1-3S; t3 in the step 4 sets the time to be 8-12S; t4 in the step 4 sets time to be 4-6S; t5 in the step 4 sets the time to be 8-12S; t6 in the step 6 sets time to be 1-2S; t12 in the step 6 sets time to be 1-2S; t9 in the step 6 sets the time to be 40-60S; t10 in the step 7 sets time to be 2-5S; t13 in the step 7 sets the time to be 5-7S; t11 in step 7 sets the time to be 2-5S.
Preferably, T1 in step 3 sets the time to 8S; t2 in the step 4 sets the time to be 1.5S; t3 in the step 4 sets the time to be 10S; t4 in the step 4 sets the time to be 5S; t5 in the step 4 sets the time to be 10S; t6 in the step 6 sets the time to be 1S; t12 in the step 6 sets the time to be 1S; t9 in the step 6 sets the time to be 50S; t10 in the step 7 sets the time to be 3S; t13 in the step 7 sets the time to be 6S; t11 in step 7 sets the time to 3S.
The control process of the single-shaft shredder provided by the invention has the beneficial effects that: by optimizing the existing control time sequence, the time for partial working cycle to retreat from a half-way position to a retreat limiting position is reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a block flow diagram of a single-axis shredder control flow of the present invention.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the control process of the single-shaft shredder according to the embodiment includes the following steps:
step 1, controlling the power supply to start and stop, pressing a power supply button, and controlling the power supply to be switched on; pressing down an emergency stop button to control the power supply to be disconnected;
step 2, starting and stopping the equipment, pressing a starting button and starting the equipment; pressing a stop button to stop the equipment;
step 3, the material pushing box works, after the equipment is started, the oil pump starts to work, the material pushing box retreats after 3S until the position of the retreating limit switch, and retreating is stopped; after 6S, the main motor rotates forwards, and after 8S, the starting is finished;
step 4, detecting the current of the main motor after the starting is finished, stopping the forward rotation of the main shaft if the current of the main motor is more than 120% In and the set time is 1.5S, retreating the material pushing box, automatically reversing the main shaft for 5S after the main shaft is stopped and stabilized after the set time is 10S, stopping the rotation, and resuming the forward rotation of the main shaft after the set time is 10S and the stabilization is stopped; every time of reversing, the reversing counter C1 is increased by 1, and after 3S is started, if the current of the main motor is not greater than 120% In or the control power supply is disconnected, the reversing counter C1 is cleared; if the count of the inversion counter C1 reaches the threshold, the device stops;
step 5, after the starting is completed for 3S and the material pushing box is at the backward limiting position, material pushing circulation is started;
step 6, In the material pushing circulation process, if the current of the main motor is larger than 90% In and after 1S set time, the material pushing box retreats to reduce the load, and a retreating load reduction counter C3 is increased by 1, after 1.5S set time, if the current of the main motor is still larger than 90% In, the material pushing box continues to retreat to reduce the load, otherwise, the material pushing box stops, and then the material pushing box advances; in the advancing process of the material pushing box, if the current of the main motor is still greater than 80% In, the material pushing box is changed into slow material pushing; when the pushing box triggers the forward limit switch or leaves the backward limit switch for a set time of 50S or the backward load reduction counter C3 counts, the pushing box retreats to the backward limit switch, the backward load reduction counter is reset, and the steps 5 and 6 are repeated;
step 7, when the pushing material is triggered to move forward to a forward limit switch or the pushing box leaves a backward limit for 3S set time, the counter C4 is increased by 1, or the counter C4 is 1 and the pushing box moves forward for 6S set time, the pushing box moves backward and the counter C2 is increased by 1, if the counter C2 reaches a set value, the pushing box directly moves back to the backward limit, the backward load reduction counter is reset, and then the steps 5 and 6 are repeated; if the counter C2 does not reach the set value, the material pushing box retreats for 3S for the set time, and then the step 6 is repeated.
By optimizing the existing control time sequence, the time for retreating part of working cycle from a half-way position to a retreating limiting position is reduced, and the production efficiency is improved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A control flow of a single-shaft shredder is characterized by comprising the following steps:
step 1, controlling the power supply to start and stop, pressing a power supply button, and controlling the power supply to be switched on; pressing down an emergency stop button to control the power supply to be disconnected;
step 2, starting and stopping the equipment, pressing a starting button and starting the equipment; pressing a stop button to stop the equipment;
step 3, the material pushing box works, after the equipment is started, the oil pump starts to work, the material pushing box retreats after 3S until the position of the retreating limit switch, and retreating is stopped; after 6S, the main motor rotates forwards, and after T1 for a set time, the starting is finished;
step 4, detecting the current of the main motor after the starting is finished, stopping the forward rotation of the main shaft if the current of the main motor is more than 120% In and the set time of T2 is passed, retreating the material pushing box, automatically reversing the main shaft for T4 set time after the main shaft is stopped stably after the set time of T3 is passed, stopping the rotation, and resuming the forward rotation of the main shaft after the set time of T5 is passed and the main shaft is stopped stably; every time of reversing, the reversing counter C1 is increased by 1, and after 3S is started, if the current of the main motor is not greater than 120% In or the control power supply is disconnected, the reversing counter C1 is cleared; if the count of the inversion counter C1 reaches the threshold, the device stops;
step 5, after the starting is completed for 3S and the material pushing box is at the backward limiting position, material pushing circulation is started;
step 6, In the material pushing circulation process, if the current of the main motor is larger than 90% In and the set time of T6 is passed, the material pushing box retreats to reduce the load and the retreating load reduction counter C3 is increased by 1, after the set time of T12 is passed, if the current of the main motor is still larger than 90% In, the material pushing box continues to retreat to reduce the load, otherwise, the material pushing box stops, and then the material pushing box advances; in the advancing process of the material pushing box, if the current of the main motor is still greater than 80% In, the material pushing box is changed into slow material pushing; when the pushing box triggers the forward limit switch or leaves the backward limit switch for a set time of T9 or the backward load reduction counter C3 counts, the pushing box retreats to the backward limit switch, the backward load reduction counter is reset, and the steps 5 and 6 are repeated;
step 7, after pushing materials are triggered to move forward to a forward limit switch or leave a pushing box from a backward limit for a set time of T10, increasing 1 by a counter C4, or after the counter C4 is 1 and the pushing box moves forward for a set time of T13, the pushing box moves backward and the counter C2 increases 1, if the counter C2 reaches a set value, the pushing box directly moves backward to the backward limit, resetting the backward load reduction counter and repeating the steps 5 and 6; if the counter C2 does not reach the set value, the material pushing box moves backwards for T11 set time, and then the step 6 is repeated.
2. The single-shaft shredder control process according to claim 1, wherein: t1 in the step 3 sets the time to be 7-9S; t2 in the step 4 sets time to be 1-3S; t3 in the step 4 sets the time to be 8-12S; t4 in the step 4 sets time to be 4-6S; t5 in the step 4 sets the time to be 8-12S; t6 in the step 6 sets time to be 1-2S; t12 in the step 6 sets time to be 1-2S; t9 in the step 6 sets the time to be 40-60S; t10 in the step 7 sets time to be 2-5S; t13 in the step 7 sets the time to be 5-7S; t11 in step 7 sets the time to be 2-5S.
3. The single-axis shredder control flow of claim 2, wherein: t1 in the step 3 sets the time to be 8S; t2 in the step 4 sets the time to be 1.5S; t3 in the step 4 sets the time to be 10S; t4 in the step 4 sets the time to be 5S; t5 in the step 4 sets the time to be 10S; t6 in the step 6 sets the time to be 1S; t12 in the step 6 sets the time to be 1S; t9 in the step 6 sets the time to be 50S; t10 in the step 7 sets the time to be 3S; t13 in the step 7 sets the time to be 6S; t11 in step 7 sets the time to 3S.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711217089.7A CN107991924B (en) | 2017-11-28 | 2017-11-28 | Single-shaft shredder control process |
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| CN201711217089.7A CN107991924B (en) | 2017-11-28 | 2017-11-28 | Single-shaft shredder control process |
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| CN108614498A (en) * | 2018-06-21 | 2018-10-02 | 广州佰益环保科技有限公司 | Shredder control system and method |
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| US8382019B2 (en) * | 2010-05-03 | 2013-02-26 | Fellowes, Inc. | In-rush current jam proof sensor control |
| CN103127990A (en) * | 2011-11-24 | 2013-06-05 | 上海震旦办公设备有限公司 | Torque-customization shredder load correction method |
| CN104511366B (en) * | 2014-09-28 | 2017-01-18 | 埃里斯克矿山工程机械有限公司 | Intelligent control system of hydraulic cone crusher |
| CN104570796A (en) * | 2014-11-21 | 2015-04-29 | 揭阳市义发实业有限公司 | Shredmaster control system and method |
| CN104475226B (en) * | 2014-12-15 | 2018-03-02 | 徐州徐工施维英机械有限公司 | A kind of start-up and shut-down control device, method and disintegrating machine |
| KR20170033697A (en) * | 2015-09-17 | 2017-03-27 | (주)대진코스탈 | Electric type paper-shrdder installed auto adjustable velocity |
| CN206121877U (en) * | 2016-09-12 | 2017-04-26 | 茂新五金制品（深圳）有限公司 | Intelligence kneader with automatic clear paper function |
| CN206372921U (en) * | 2016-12-30 | 2017-08-04 | 张家港市五合机械有限公司 | A kind of single-shaft shredder |
| CN107377186A (en) * | 2017-09-25 | 2017-11-24 | 广州市联冠机械有限公司 | Breaker and disintegrating apparatus |
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Effective date of registration: 20231128 Address after: 526000 Xintang Industrial Cluster base, Xintang village, Jiaotang Town, Gaoyao District, Zhaoqing City, Guangdong Province (No. 5 plant of Xintang economic cooperative, 50m diagonally opposite to Gulang new materials Co., Ltd.) Patentee after: Junnuo environmental protection equipment technology (Zhaoqing) Co.,Ltd. Address before: 511458 Eleventh, No. 3, Guangzhu Road, Dongyong Town, Nansha District, Guangzhou City, Guangdong Province (Building 2 (Building 2) Patentee before: GENOX RECYCLING TECH Co.,Ltd. |