CN107901267A - A kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system - Google Patents
A kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system Download PDFInfo
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- CN107901267A CN107901267A CN201711130627.9A CN201711130627A CN107901267A CN 107901267 A CN107901267 A CN 107901267A CN 201711130627 A CN201711130627 A CN 201711130627A CN 107901267 A CN107901267 A CN 107901267A
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- cylinder
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- thrust
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- cutting machine
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system of the present invention, the control system includes main control module, ratio adjusting valve, cylinder, cutter head and dynamometer, the ratio adjusting valve, cylinder, cutter head, dynamometer are connected with the main control module respectively, and the ratio adjusting valve is connected with the cylinder；Control System Design of the present invention is novel, simple efficient, is improved well on the basis of existing hot-cutting machine, fluid pressure type is replaced using gas circuit formula, applies thrust to the cutter head of hot-cutting machine in pelletizing thrust, completion cutter head is bonded with die head, realizes pelletizing；The control method control accuracy is high, is adjusted using single order closed feedback, accurately can adjust and control the contact force of blade and die head, ensure that blade can pelletizing, again minimum with the frictional force of die head, the damage to blade is minimum, it is also possible that the control system is more stablized.
Description
Technical field
The present invention relates to hot-cutting machine control technology field, more specifically to a kind of gas circuit formula hot-cutting machine pelletizing thrust
The control method of control system.
Background technology
It is well known that underwater pelletizer, is a kind of new high molecular polymer semi-finished product processing equipment, due to cutting for it
The process of cutting is to carry out in water, is thus gained the name.Due to need not be cooled down during pelletizing to tape, in order to be cut with underwater tie rod formula
Grain machine is distinguished, we are called hot-cutting machine again or flour milling is cut.Current such a equipment is mainly used in polypropylene（PP）, nylon 6
（PA6）, the product such as elastomer production.It is mainly characterized by equipment and its auxiliary device takes up little area, grain in process of producing product
Sub-cooled is not required for son, it can be achieved that 90 degree of high temperature pelletizings, energy expenditure is saved for follow-up heating process.Lead in the world now
The hot-cutting machine manufacturer wanted has：CAMA、BKG、MAAG（Mug(unit of measure)）, Nanjing writing brush easily etc..
But existing hot-cutting machine needs also exist for improved place：
First, existing hot-cutting machine pelletizing thrust mainly supports that effect is not fine, cost using hydraulic system to provide thrust
Compare high；And existing hot-cutting machine is also not attempt to the replacement using air-channel system to hydraulic system, therefore have necessarily
Limitation；
Second, the control system imperfection of existing hot-cutting machine pelletizing thrust, control method is not excellent enough, and control accuracy is not high,
So that the material particles cut out do not reach the requirement of higher, and waste of resource and cost, intelligent and the degree of automation
It is low, be not suitable for a wide range of popularization.
The content of the invention
In view of this, to solve above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of gas circuit formula is fervent
The control method of machine-cut grain thrust control system, Control System Design is novel, it is simple efficiently, on the basis of existing hot-cutting machine into
Go and improved well, fluid pressure type is replaced using gas circuit formula, thrust is applied to the cutter head of hot-cutting machine in pelletizing thrust, completes knife
Head is bonded with die head, realizes pelletizing；The control method control accuracy is high, is adjusted using single order closed feedback, can be accurate
Adjust and the contact force of control blade and die head, ensure blade can pelletizing and die head frictional force it is minimum, to the damage of blade
Wound is minimum, it is also possible that the control system is more stablized, can monitor and adjust in real time hot-cutting machine pelletizing thrust, preferably reach
Pelletizing requirement has been arrived, equipment operation power consumption and maintenance cost has been greatly reduced, is more suitable for promoting.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system, the control system include main control module, ratio
Regulating valve, cylinder, cutter head and dynamometer, the ratio adjusting valve, cylinder, cutter head, dynamometer connect with the main control module respectively
Connect, the ratio adjusting valve is connected with the cylinder；
The side of the cylinder is communicated with gas circuit babinet, the opposite side connection thrust axis of the cylinder, and the thrust axis is connected with
The cutter hub vertical with the thrust axis, the front end of the cutter hub set the cutter head, uniformly divide on the outer circumference surface of the cutter head
Some blades of cloth, the edge of the blade are in same level and setting are bonded with die head；
Comprise the following steps：
Step 1：The control system is opened, the gas circuit babinet supplies for cylinder, into normal operating conditions；
Step 2：The number for defining the blade is n, the die head is F1 for the reaction force of the single blade, then institute
It is nF1 to state the active force that cutter head is subject to, and the reaction force that the cutter head is fed back on the cylinder by thrust axis is nF1；
Step 3：It is x to define cylinder output force value（k）, cylinder gas pressure intensity be u（k）, control gain for K, ratio adjusting valve
Proportion adjustment parameter be R, equation coefficient a, then the first-order equation formula of the control system be expressed as：x（k+1）=ax（k）+Ku
（k）, the feedback control equation of the control system is expressed as：u（k）=x（k）-x（k-1）+Ru（k）, wherein control gain K ＞ 0；
In theory, the power suffered by cutter head is：x (k)-nF1, x (k)-nF1＞ 0；
Step 4：According to the equation of root-locus technique solution procedure three, it is known that：K and R is adjusted by the main control module so that
Power x (k)-nF suffered by cutter head1Fluctuated in a small scope so that the control system asymptotically stability, so that described
Cylinder provides stable thrust for the cutter head；
Step 5：The dynamometer sends the pressure signal collected to main control module and is handled, the main control module
Send the execution signal after processing to the ratio adjusting valve, and then the proportion adjustment valve regulation reaches the gas of the cylinder
Body pressure, the cylinder exports certain thrust according to gas pressure intensity, and is acted on by thrust axis on the cutter head, and then knife
Blade on head acts on certain pressure on die head, so blade and die head contact friction and to the material of melting into
Row cutting, obtains graininess pelletizing.
Further, the main control module is DCS or PLC.
Further, the ratio adjusting valve is VPPM types.
Further, the main control module is connected with the ratio adjusting valve, cylinder respectively by two-position five-way valve.
Further, the main control module is connected by PID controller with the cutter head.
Further, the cutter head, single blade, the dynamometer is set respectively on cylinder.
The beneficial effects of the invention are as follows：
In the present invention, hot-cutting machine pelletizing thrust control system includes main control module, ratio adjusting valve, cylinder, cutter head and dynamometer,
It is novel in design, simple efficiently to be improved well on the basis of existing hot-cutting machine, fluid pressure type is replaced using gas circuit formula,
By the gas pressure intensity of proportion adjustment valve regulation cylinder, and then the thrust of cutter head application during adjusting pelletizing thrust to hot-cutting machine,
Completion blade is bonded with die head, realizes pelletizing；In addition, blade is bonded with die head, blade is subject to the reaction force of die head, and then
Reaction force is fed back to cylinder by cutter head by thrust axis, greatly reduces equipment operation power consumption, while also ensure thrust
Stability, ensures the pelletizing function of cutter head；
In the present invention, the control method control accuracy is high, is adjusted using single order closed feedback, accurately can adjust and control knife
The contact force of piece and die head, ensure blade can pelletizing and die head frictional force it is minimum, the damage to blade is minimum, may be used also
So that the control system is more stablized, hot-cutting machine pelletizing thrust can be monitored and adjust in real time, preferably having reached pelletizing will
Ask, greatly reduce equipment operation power consumption and maintenance cost, be more suitable for promoting.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram of cutter head and die head；
Fig. 3 is the control block diagram of the present invention；
Marked in figure：1st, main control module, 2, ratio adjusting valve, 3, cylinder, 4, cutter head, 5, gas circuit babinet, 6, thrust axis, 7, knife
Body, 8, blade, 9, die head.
Embodiment
Specific embodiment is provided below in conjunction with the accompanying drawings, technical scheme is made further clear, complete, in detail
Explanation.The present embodiment is the most preferred embodiment premised on technical solution of the present invention, but protection scope of the present invention is not limited to down
The embodiment stated.
As shown in Figs. 1-3, a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system, the control system bag
Include main control module 1, ratio adjusting valve 2, cylinder 3, cutter head 4 and dynamometer, the ratio adjusting valve 2, cylinder 3, cutter head 4, dynamometry
Instrument is connected with the main control module 1 respectively, and the ratio adjusting valve 2 is connected with the cylinder 3；
The side of the cylinder 3 is communicated with gas circuit babinet 5, the opposite side connection thrust axis 6 of the cylinder 3, and the thrust axis 6 connects
The cutter hub 7 vertical with the thrust axis 6 is connected to, the front end of the cutter hub 7 sets the cutter head 4, the outer circumference surface of the cutter head 4
On be uniformly distributed some blades 8, the edge of the blade 8 is in same level and is bonded setting with die head 9；
It is characterized in that：Comprise the following steps：
Step 1：The control system is opened, the gas circuit babinet 5 supplies for cylinder 3, into normal operating conditions；
Step 2：The number for defining the blade 8 is n, the die head 9 is F1 for the reaction force of the single blade 8, then
The active force that the cutter head 4 is subject to is nF1, and the reaction force that the cutter head 4 is fed back on the cylinder 3 by thrust axis 6 is
nF1；
Step 3：It is x to define 3 output force value of cylinder（k）, cylinder 3 gas pressure intensity be u（k）, control gain for K, proportion adjustment
The proportion adjustment parameter of valve 2 is R, equation coefficient a, then the first-order equation formula of the control system is expressed as：x（k+1）=ax（k）+
Ku（k）, the feedback control equation of the control system is expressed as：u（k）=x（k）-x（k-1）+Ru（k）, wherein control gain K ＞
0；In theory, the power suffered by cutter head 4 is：x (k)-nF1, x (k)-nF1＞ 0；
Step 4：According to the equation of root-locus technique solution procedure three, it is known that：K and R is adjusted by the main control module 1 so that
Power x (k)-nF suffered by cutter head 41Fluctuated in a small scope so that the control system asymptotically stability, so that gas
Cylinder 3 provides the thrust of stabilization for cutter head 4；
Step 5：The dynamometer sends the pressure signal collected to main control module 1 and is handled, the main control module
1 sends the execution signal after processing to the ratio adjusting valve 2, and then the ratio adjusting valve 2 adjusts and reaches the cylinder 3
Gas pressure intensity, the cylinder 3 exports certain thrust according to gas pressure intensity, and acts on the cutter head 4 by thrust axis 6
On, and then the blade 8 on cutter head 4 acts on certain pressure on die head 9, and then blade 8 carries out contacting friction simultaneously with die head 9
The material of melting is cut, obtains graininess pelletizing.
Further, main control module 1 is DCS or PLC.
Further, ratio adjusting valve 2 is VPPM types.
Further, main control module 1 is connected with the ratio adjusting valve 2, cylinder 3 respectively by two-position five-way valve.
Further, main control module 1 is connected by PID controller with cutter head 4, and main control module 1 controls the execution of cutter head 4 to move
Make.
Further, cutter head 4, single blade 8, dynamometer is set respectively on cylinder 3, dynamometer is to each local effect
Power is monitored in real time, and feeds back to main control module 1 in time.
In conclusion in the present invention, hot-cutting machine pelletizing thrust control system includes main control module 1, ratio adjusting valve 2, gas
Cylinder 3, cutter head 4 and dynamometer, it is novel in design, simple efficiently to be improved well on the basis of existing hot-cutting machine, use
Gas circuit formula replaces fluid pressure type, to fervent when adjusting the gas pressure intensity of cylinder 3 by ratio adjusting valve 2, and then adjusting pelletizing thrust
The thrust that the cutter head 4 of machine applies, completion blade 8 are bonded with die head 9, realize pelletizing；In addition, blade 8 is bonded with die head 9, knife
Piece 8 is subject to the reaction force of die head 9, and then reaction force is fed back to cylinder 3 by cutter head 4 by thrust axis 6, is greatly reduced and is set
Received shipment row power consumption, while also ensure the stability of thrust, ensure the pelletizing function of cutter head；
In the present invention, the control method control accuracy is high, is adjusted using single order closed feedback, accurately can adjust and control knife
The contact force of piece 8 and die head 9, ensure blade 8 can pelletizing and die head 9 frictional force it is minimum, the damage to blade 8 is minimum,
It is also possible that the control system is more stablized, hot-cutting machine pelletizing thrust can be monitored and adjusted in real time, has preferably reached and has cut
Grain requires, and greatly reduces equipment operation power consumption and maintenance cost, is more suitable for promoting.
Main feature, basic principle and the advantages of the present invention of the present invention has been shown and described above.Industry technology
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, the present invention can also have various change according to actual conditions
And improvement, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended
Claims and its equivalent thereof.
Claims (6)
1. a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system, the control system include main control module（1）、
Ratio adjusting valve（2）, cylinder（3）, cutter head（4）And dynamometer, the ratio adjusting valve（2）, cylinder（3）, cutter head（4）, dynamometry
Instrument respectively with the main control module（1）Connection, the ratio adjusting valve（2）With the cylinder（3）Connection；
The cylinder（3）Side be communicated with gas circuit babinet（5）, the cylinder（3）Opposite side connection thrust axis（6）, it is described
Thrust axis（6）It is connected with and the thrust axis（6）Vertical cutter hub（7）, the cutter hub（7）Front end the cutter head is set（4）,
The cutter head（4）Outer circumference surface on be uniformly distributed some blades（8）, the blade（8）Edge be in same level
Upper and and die head（9）Fitting is set；
It is characterized in that：Comprise the following steps：
Step 1：Open the control system, the gas circuit babinet（5）For cylinder（3）Supply, into normal operating conditions；
Step 2：Define the blade（8）Number for n, the die head（9）For the single blade（8）Reaction force
For F1, then the cutter head（4）The active force being subject to is nF1, the cutter head（4）By thrust axis（6）Feed back to the cylinder（3）
On reaction force be nF1；
Step 3：Define cylinder（3）Output force value is x（k）, cylinder（3）Gas pressure intensity be u（k）, control gain for K, ratio
Regulating valve（2）Proportion adjustment parameter be R, equation coefficient a, then the first-order equation formula of the control system be expressed as：x（k+1）=
ax（k）+Ku（k）, the feedback control equation of the control system is expressed as：u（k）=x（k）-x（k-1）+Ru（k）, wherein controlling
Gain K ＞ 0；In theory, cutter head（4）Suffered power is：x (k)-nF1, x (k)-nF1＞ 0；
Step 4：According to the equation of root-locus technique solution procedure three, it is known that：Pass through the main control module（1）K and R is adjusted, is made
Obtain cutter head（4）Suffered power x (k)-nF1Fluctuated in a small scope so that the control system asymptotically stability, and then make
Obtain the cylinder（3）For the cutter head（4）Stable thrust is provided；
Step 5：The dynamometer sends the pressure signal collected to main control module（1）And handled, the master control mould
Block（1）Send the execution signal after processing to the ratio adjusting valve（2）, and then the ratio adjusting valve（2）Adjust and reach
The cylinder（3）Gas pressure intensity, the cylinder（3）Certain thrust is exported according to gas pressure intensity, and passes through thrust axis（6）Make
For the cutter head（4）On, and then cutter head（4）On blade（8）Certain pressure is acted on into die head（9）On, and then blade
（8）With die head（9）Carry out contact friction and the material to melting is cut, obtain graininess pelletizing.
2. a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system according to claim 1, its feature exist
In：The main control module（1）For DCS or PLC.
3. a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system according to claim 1, its feature exist
In：The ratio adjusting valve（2）For VPPM types.
4. a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system according to claim 1, its feature exist
In：The main control module（1）By two-position five-way valve respectively with the ratio adjusting valve（2）, cylinder（3）Connection.
5. a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system according to claim 1, its feature exist
In：The main control module（1）Pass through PID controller and the cutter head（4）Connection.
6. a kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system according to claim 1, its feature exist
In：The cutter head（4）, single blade（8）, cylinder（3）It is upper that the dynamometer is set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711130627.9A CN107901267B (en) | 2017-11-15 | 2017-11-15 | A kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system |
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|---|---|---|---|
| CN201711130627.9A CN107901267B (en) | 2017-11-15 | 2017-11-15 | A kind of control method of gas circuit formula hot-cutting machine pelletizing thrust control system |
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| CN107901267A true CN107901267A (en) | 2018-04-13 |
| CN107901267B CN107901267B (en) | 2019-11-26 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112059293A (en) * | 2020-08-17 | 2020-12-11 | 吴义振 | Steel cutting device for bridge construction |
| CN112318691A (en) * | 2020-12-04 | 2021-02-05 | 禹州市国粹钧窑有限责任公司 | Jun porcelain bottle mouth processing method and device |
| CN112454613A (en) * | 2020-12-04 | 2021-03-09 | 禹州市华龙钧窑有限公司 | Method for manufacturing Jun porcelain bottle mouth |
| CN112454610A (en) * | 2020-12-04 | 2021-03-09 | 禹州市国粹钧窑有限责任公司 | Manufacturing method of Jun porcelain bottle mouth meeting various shapes |
| CN112497449A (en) * | 2020-12-04 | 2021-03-16 | 禹州市国粹钧窑有限责任公司 | System for processing Jun porcelain bottle mouth with various shapes |
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| CN112059293A (en) * | 2020-08-17 | 2020-12-11 | 吴义振 | Steel cutting device for bridge construction |
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| Publication number | Publication date |
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| CN107901267B (en) | 2019-11-26 |
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