CN115629568A - Intelligent switch control device with compensation electronic cam - Google Patents
Intelligent switch control device with compensation electronic cam Download PDFInfo
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- CN115629568A CN115629568A CN202211405872.7A CN202211405872A CN115629568A CN 115629568 A CN115629568 A CN 115629568A CN 202211405872 A CN202211405872 A CN 202211405872A CN 115629568 A CN115629568 A CN 115629568A
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- 238000004891 communication Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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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
- G05B19/05—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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- 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
- G05B2219/10—Plc systems
- G05B2219/15—Plc structure of the system
- G05B2219/15106—High speed limited function sub plc together with slow speed general
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanically-Actuated Valves (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The invention relates to an intelligent switch control device with a compensation electronic cam, which comprises: plc controller for setting ON set angle value delta a OFF set angle value delta b Maximum conveying speed value V of disposable sanitary products max And a minimum conveying speed value V min (ii) a A speed acquisition terminal for acquiring the conveying speed V of the disposable sanitary product 1 (ii) a A rotation variation sensor for detecting the current rotation angle delta of the mechanical cam 1 (ii) a Calculating the velocity range V s Current speed deviation V', ON compensation angle delta a and ON logic angle delta a1 OFF compensation angle Δ b and OFF logic angle δ b1 (ii) a ON set angle value delta of mechanical cam a = ON logical angle δ a1 + n × 360 °, OFF set angle value δ b = ON logical angle δ b1 + n × 360 °. The invention can synchronously adjust the ON set angle and the OFF set angle of the electronic cam ON line according to the conveying speed of the disposable sanitary products.
Description
Technical Field
The invention relates to the technical field of electronic cam control, in particular to an intelligent switch control device with a compensation electronic cam.
Background
The mechanical cam structure can be used for the reversing mechanism, the pushing mechanism, the folding mechanism and other mechanisms in the production equipment of the disposable sanitary products. The cam curve of the mechanical cam is generally constructed in an electronic cam opening, and the output of the electronic cam is set in DOG units. A DOG is divided into two portions of DOG WIDTH and DOG INTERVAL, and the DOGWIDTH portion outputs an ON signal for an electronic cam to set a start angle (hereinafter, defined as an ON set angle) and an end angle (hereinafter, defined as an OFF set angle). The corresponding DOGINTERVAL outputs an OFF signal for the electronic cam.
At present, the speed of producing disposable sanitary articles (such as paper diapers) by disposable sanitary article production equipment can reach more than 300 sheets/minute, and in the actual production process, the conveying speed of the disposable sanitary articles is not constant and is continuously adjusted to be in a continuous fluctuation state above and below a set speed value. However, the control of the mechanical cam structure in the existing disposable sanitary product production equipment is not accurate enough, or the time for the mechanical cam structure to output the control signal is not accurate; more specifically, the ON setting angle and the OFF setting angle of the electronic cam are not adjusted in synchronization with the conveyance speed of the disposable hygienic article, which results in that the produced disposable hygienic article does not maintain strict consistency. For example, disposable hygiene articles are required to be half-folded, not half-folded; when the mechanical cam structure is required to be reversed by 90 degrees, only 87 degrees are actually reversed, and the like, the time for outputting the control signal by the mechanical cam structure is inaccurate.
Aiming at the situation, the invention originally designs the intelligent switch control system with the compensation electronic cam, which is applied to the production of the disposable sanitary products, and synchronously adjusts the ON set angle and the OFF set angle of the electronic cam ON line according to the conveying speed of the disposable sanitary products.
Disclosure of Invention
Therefore, in order to solve the above problems, the present invention provides an intelligent switch control device with compensation electronic cam, which can synchronously adjust the ON setting angle and the OFF setting angle of the electronic cam ON line according to the conveying speed of the disposable sanitary products.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent switch control device with a compensation electronic cam is used for detecting the rotation angle of a cam shaft of a mechanical cam and outputting a switch control signal;
the method comprises the following steps:
plc controller for setting initial ON setting angle value delta a Initial OFF set angle value delta b Maximum conveying speed value V of disposable sanitary products max And a minimum conveying speed value V min ；
A speed acquisition terminal for acquiring the conveying speed of the disposable sanitary products, which rotates to delta within the current rotation period a Conveying speed V of disposable sanitary articles 1 ；
And the rotary change sensor is connected to the mechanical cam camshaft and used for detecting the current rotation angle delta of the mechanical cam 1 ；
The speed acquisition terminal and the rotary transformer sensor are respectively electrically connected with the PLC;
the plc controller receives the current conveying speed V of the disposable sanitary products in the current rotation period of the cam shaft of the mechanical cam 1 And calculating:
maximum conveying speed value V max Minimum delivery speed value V min = speed range V s ；
Current transport speed V 1 Minimum conveying speed value V min = current speed deviation V';
initial ON set angle value delta a * (Current speed deviation V'/speed Range V) s ) = ON compensation angle Δ a;
initial ON set angle value delta a -ON compensation angle Δ a = ON logic angle δ a1 Cam of mechanical camSetting angle value delta of shaft nth rotation period ON a = ON logical angle δ a1 +n*360°；
Initial OFF set Angle value delta b * (Current speed deviation V'/speed Range V) s ) = OFF compensation angle Δ b;
initial OFF set Angle value delta b -ON compensation angle Δ b = OFF logic angle δ b1 The n-th rotation period OFF of the camshaft of the mechanical cam is set to the angle value delta b = ON logical angle δ b1 +n*360°；
When the rotation change sensor detects the current rotation angle delta of the mechanical cam in the nth rotation period 1 ∈[δ a1 +n*360°，δ b1 +n*360°]Then the plc controller outputs a switch control signal.
Further, the system also comprises an upper computer;
the upper computer is in communication connection with the plc controller;
setting an initial ON set angle value delta through the field human-computer interaction interface a Initial OFF set angle value delta b Maximum conveying speed value V of disposable sanitary products max And a minimum conveying speed value V min 。
Further, the rotation sensor adopts an absolute value encoder.
By adopting the technical scheme, the invention has the beneficial effects that:
the intelligent switch control device with the compensation electronic cam detects the conveying speed of the disposable hygienic products through the speed acquisition terminal creatively, and synchronously adjusts the ON set angle and the OFF set angle of the electronic cam ON line according to the conveying speed of the disposable hygienic products. When the rotation change sensor detects that the camshaft of the mechanical cam rotates to [ delta ] in the nth rotation period a1 +n*360°，δ b1 +n*360°]Then the plc controller outputs the switch control signal, so that the timing of outputting the switch control signal by the plc controller is accurate under different conveying speeds of the disposable sanitary products.
Drawings
Fig. 1 is a circuit connection block diagram of the present invention.
Fig. 2 is a schematic structural view of the mechanical cam.
Description of the drawings: 1. a mechanical cam; 10. a camshaft; 100. a plc controller; 200. a speed acquisition terminal; 300. a rotation variation sensor; 400. and an upper computer.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 and 2, the present embodiment provides an intelligent switch control device with compensation electronic cam, which is used for detecting the rotation angle of a mechanical cam 1 and outputting a switch control signal.
The mechanical cam 1 is a conventional device, and the structure of the mechanical cam 1 will not be described in detail herein.
Further comprising:
the PLC comprises a plc controller 100, a speed acquisition terminal 200, a rotary transformer sensor 300 and an upper computer 400.
In this embodiment, preferably, the upper computer 400 is a field human-computer interaction terminal.
Setting an initial ON set angle value delta to the plc controller 100 by the upper computer 400 a Initial OFF set angle value delta b Maximum transport speed value V of disposable sanitary article max And a minimum transport speed value V for the disposable sanitary article min 。
The speed acquisition terminal 200 is provided on a disposable hygienic article production line for detecting the conveying speed of the disposable hygienic articles.
In this embodiment, the speed acquisition terminal 200 employs a rotation speed sensor.
When the disposable sanitary article conveyor is installed, the rotating speed sensor is in contact with a disposable sanitary article (not shown in the figure), the rotating speed sensor is driven to rotate when the disposable sanitary article is conveyed, and the conveying speed V of the disposable sanitary article can be calculated through the rotating speed of the rotating speed sensor 1 The technical means is a technique known in the art and will not be described in detail herein.
In this embodiment, the rotation sensor 300 employs an absolute value encoder, and the absolute value encoder employs a gray code.
The rotation sensor 300 is connected to the camshaft 10 of the mechanical cam 1 (not shown in the drawings, but for those skilled in the art, the technology of installing the rotation sensor 300 on the camshaft 10 is conventional and will not be described in detail herein), and the rotation sensor 300 is used for detecting the current rotation angle δ of the mechanical cam 1 1 And transmitted to plc100.
The speed acquisition terminal 200 and the rotation sensor 300 are electrically connected to an I/O interface of the PLC controller 100, respectively.
The upper computer 400 is in communication connection with a communication interface of the plc controller 100.
The plc controller 100 receives the current feeding speed V of the disposable hygienic article (not shown) during the current rotation cycle of the mechanical cam 1 1 。
And calculates:
(1) Transport speed value V max Minimum delivery speed value V min = speed range V s 。
(2) Current transport speed V 1 Minimum conveying speed value V min = current speed deviation V'.
(3) Initial ON setting angle value delta a * (Current speed deviation V'/speed Range V) s ) = ON compensation angle Δ a.
(4) Initial ON setting angle value delta a -ON compensation angle Δ a = ON logic angle δ a1 Further, the n-th rotation period ON set angle value delta of the mechanical cam 1 can be obtained a = ON logical angle δ a1 +n*360°。
(5) Initial OFF set angle value delta b * (Current speed deviation V'/speed Range V) s ) = OFF compensation angle Δ b.
(6) Initial OFF set angle value delta b -ON compensation angle Δ b = OFF logic angle δ b1 Further, the n-th rotation period OFF set angle value delta of the mechanical cam 1 can be obtained b = ON logical angle δ b1 +n*360°。
When the revolution sensor 300 detects that the revolution of the mechanical cam 1 reaches [ delta ] in the nth revolution period a1 +n*360°，δ b1 +n*360°]Then the plc controller 100 outputs a switch control signal. Thus, the timing of the output of the switch control signal from the plc controller 100 is kept accurate at different disposable hygiene product delivery rates.
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. An intelligent switch control device with a compensation electronic cam is used for detecting the rotation angle of a cam shaft of a mechanical cam and outputting a switch control signal;
it is characterized by comprising:
plc controller for setting initial ON set angle value δ a Initial OFF set angle value delta b Maximum conveying speed value V of disposable sanitary products max And a minimum conveying speed value V min ；
A speed acquisition terminal for acquiring the conveying speed of the disposable sanitary products, which rotates to delta within the current rotation period a Conveying speed V of disposable sanitary products 1 ；
And the rotary change sensor is connected to the mechanical cam camshaft and used for detecting the current rotation angle delta of the mechanical cam 1 ；
The speed acquisition terminal and the rotary transformer sensor are respectively electrically connected with the PLC;
the plc controller receives the current conveying speed V of the disposable sanitary products in the current rotation period of the cam shaft of the mechanical cam 1 And calculating:
maximum conveying speed value V max Minimum conveying speed value V min = speed range V s ；
Current transport speed V 1 Minimum conveying speedValue V min = current speed deviation V';
initial ON set angle value delta a * (Current speed deviation V'/speed Range V) s ) = ON compensation angle Δ a;
initial ON set angle value delta a -ON compensation angle Δ a = ON logic angle δ a1 The nth rotation period of the camshaft of the mechanical cam is ON to set the angle value delta a = ON logical angle δ a1 +n*360°；
Initial OFF set Angle value delta b * (Current speed deviation V'/speed Range V) s ) = OFF compensation angle Δ b;
initial OFF set Angle value delta b -ON compensation angle Δ b = OFF logic angle δ b1 Then, the n-th rotation period of the camshaft of the mechanical cam is OFF to set the angle value delta b = ON logical angle δ b1 +n*360°；
When the rotation change sensor detects the current rotation angle delta of the mechanical cam in the nth rotation period 1 ∈[δ a1 +n*360°，δ b1 +n*360°]Then the plc controller outputs a switch control signal.
2. The intelligent switch control device with the compensation electronic cam as claimed in claim 1, wherein: the device also comprises an upper computer;
the upper computer is in communication connection with the plc controller;
setting an initial ON set angle value delta through the field human-computer interaction interface a Initial OFF set angle value delta b Maximum conveying speed value V of disposable sanitary products max And a minimum conveying speed value V min 。
3. The intelligent switch control device with compensation electronic cam according to claim 1 or 2, characterized in that: the rotary transformer sensor adopts an absolute value encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211405872.7A CN115629568B (en) | 2022-11-10 | 2022-11-10 | Intelligent switch control device with compensation electronic cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211405872.7A CN115629568B (en) | 2022-11-10 | 2022-11-10 | Intelligent switch control device with compensation electronic cam |
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| CN115629568A true CN115629568A (en) | 2023-01-20 |
| CN115629568B CN115629568B (en) | 2024-07-26 |
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| CN202211405872.7A Active CN115629568B (en) | 2022-11-10 | 2022-11-10 | Intelligent switch control device with compensation electronic cam |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950034487U (en) * | 1994-05-28 | 1995-12-18 | 위아주식회사 | Top dead center position control device of the gearbox motor installed in the rotary motion machine |
| CN1626050A (en) * | 2003-12-14 | 2005-06-15 | 福建恒安集团有限公司 | Method for preparing short pants type paper urine pants and article fabricated |
| KR20130124241A (en) * | 2013-08-19 | 2013-11-13 | 김승우 | Plc controller |
| CN103676769A (en) * | 2013-12-20 | 2014-03-26 | 广州市兴世机械制造有限公司 | Electronic cam control system and method of programmable logic controller |
| CN106094718A (en) * | 2016-02-23 | 2016-11-09 | 泉州市汉威机械制造有限公司 | A kind of electric cam compensating control method |
-
2022
- 2022-11-10 CN CN202211405872.7A patent/CN115629568B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950034487U (en) * | 1994-05-28 | 1995-12-18 | 위아주식회사 | Top dead center position control device of the gearbox motor installed in the rotary motion machine |
| CN1626050A (en) * | 2003-12-14 | 2005-06-15 | 福建恒安集团有限公司 | Method for preparing short pants type paper urine pants and article fabricated |
| KR20130124241A (en) * | 2013-08-19 | 2013-11-13 | 김승우 | Plc controller |
| CN103676769A (en) * | 2013-12-20 | 2014-03-26 | 广州市兴世机械制造有限公司 | Electronic cam control system and method of programmable logic controller |
| CN106094718A (en) * | 2016-02-23 | 2016-11-09 | 泉州市汉威机械制造有限公司 | A kind of electric cam compensating control method |
Non-Patent Citations (1)
| Title |
|---|
| 孙燕, 程天良: "一种可编程电子式凸轮开关控制器的设计", 农机化研究, no. 05, 30 October 2005 (2005-10-30), pages 146 - 147 * |
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