CN113183440B - Butyl rubber vibration damping belt production line and tension control method - Google Patents
Butyl rubber vibration damping belt production line and tension control method Download PDFInfo
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- CN113183440B CN113183440B CN202110464907.3A CN202110464907A CN113183440B CN 113183440 B CN113183440 B CN 113183440B CN 202110464907 A CN202110464907 A CN 202110464907A CN 113183440 B CN113183440 B CN 113183440B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/355—Conveyors for extruded articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92523—Force; Tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92933—Conveying, transporting or storage of articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a butyl rubber vibration damping belt production line and a tension control method, which can realize automatic detection of an actual tension value, automatic control of the actual tension value, and guarantee that the actual tension value of a butyl rubber vibration damping belt stably tracks the tension value required by the process, so that the geometric dimension and the performance of a finally obtained butyl rubber vibration damping block have good consistency. A butyl rubber vibration damping belt production line comprises: the butyl rubber vibration damping belt feeding extruder is used for forming a butyl rubber vibration damping belt; the butyl rubber vibration damping belt discharging traction machine is used for traction the butyl rubber vibration damping belt discharged by the butyl rubber vibration damping belt feeding extruder to ensure that the butyl rubber vibration damping belt has stable tension; a tension control device of the butyl rubber vibration damping belt realizes tension control of the butyl rubber vibration damping belt.
Description
Technical Field
The invention relates to the technical field of special chemical products, in particular to a butyl rubber vibration damping belt production line and a tension control method.
Background
The butyl rubber damping band is a raw material for producing the butyl rubber damping block. The butyl rubber damping block is one kind of synthetic rubber, and has excellent air tightness, heat resistance, ageing resistance, acid and alkali resistance, ozone resistance, solvent resistance, electric insulation, vibration damping, low water absorption and other performances. The butyl rubber damping block is widely applied to occasions needing damping, such as bridges, air conditioners, automobiles, aviation, ships and the like. Different requirements are provided for the damping effect of the butyl rubber damping block in various application fields, and the requirements for the damping performance in some fields are very high. The damping effect of the butyl rubber damping block made of specific materials mainly depends on the geometric dimension of the butyl rubber damping block, and the geometric dimension and the flatness of the butyl rubber damping block are directly determined by the butyl rubber damping block tension control device and the butyl rubber damping block tension control method.
The process for artificially producing the butyl rubber damping block comprises three parts: feeding, pressing, drawing, shaping, packaging and cutting. The manual production flow comprises the following steps: when the production line runs, an operator puts an unshaped butyl rubber damping block into a feed inlet of an extruder, and the extruder is used for carrying out primary material pressing and shaping on the butyl rubber damping block to form a butyl rubber damping band; an operator manually adjusts the size of a discharge port of the extruder and shapes the butyl rubber vibration damping band again; an operator pulls the shaped butyl rubber vibration damping band to a tractor, pulls and presses the butyl rubber vibration damping band, in the process, the size of the butyl rubber vibration damping band in the pulling process is observed to manually adjust the pulling speed of the tractor, tension adjustment is realized, and the primarily shaped butyl rubber vibration damping band is shaped again before being packaged; and finally, conveying the shaped butyl rubber damping band to a shearing machine for shearing to form a butyl rubber damping block, and packaging and warehousing the butyl rubber damping block.
The production of the butyl rubber damping block belongs to special chemical products, the variety of the special chemical products is various, the production process is various, the production automation degree is generally low, and at present, the butyl rubber damping block is generally produced manually. There are major problems: firstly, manual production's inefficiency, the uniformity of product is poor, and workman's intensity of labour is big, and operational environment is poor, draws butyl rubber damping to bring through relying on the manpower on moving production line and ensures that tension reaches the regulation requirement, is difficult to ensure operating personnel's safety. Secondly, the tension of the butyl rubber vibration damping belt is manually controlled by an operator, the stability and consistency of the tension are difficult to control, and the produced butyl rubber vibration damping block is not smooth enough and has large geometric dimension error, so that the overall performance of the butyl rubber vibration damping block is influenced.
Disclosure of Invention
Aiming at the problems in the production of the conventional butyl rubber damping block, the invention provides a butyl rubber damping band production line and a tension control method.
The purpose of the invention is realized as follows:
a butyl rubber vibration damping belt production line comprises:
the butyl rubber vibration damping band feeding extruder is used for controlling the extrusion discharge amount of raw materials for producing the butyl rubber vibration damping band by applying extrusion force to form the butyl rubber vibration damping band; the butyl rubber damping belt feeding extruder is provided with an extruder base, and an extruder feeding plate, an extruder feeding hole, an extruder discharging hole and a first butyl rubber damping block size shaping plate are sequentially arranged on the extruder base along a feeding direction;
the butyl rubber vibration damping belt discharging traction machine is used for drawing the butyl rubber vibration damping belt discharged by the butyl rubber vibration damping belt feeding extruder, so that the butyl rubber vibration damping belt is ensured to have stable tension, the drawn butyl rubber vibration damping belt is smooth, and the size meets the requirement; the butyl rubber vibration damping belt discharging traction machine is provided with a traction machine base, and a tension wheel, a second butyl rubber vibration damping block size forming plate and a traction wheel are sequentially arranged on the traction machine base along the feeding direction; the sizing channels are respectively arranged on the first butyl rubber damping block size sizing plate and the second butyl rubber damping block size sizing plate, and the size of the butyl rubber damping band is controlled by the first butyl rubber damping block size sizing plate and the second butyl rubber damping block size sizing plate; the tractor base is further provided with a rubber film wheel, a first release paper fixed pulley and a second release paper fixed pulley, the rubber film wheel is connected with the traction wheel through a rubber film and used for covering the rubber film on the upper surface of the butyl rubber vibration damping belt, and the first release paper fixed pulley and the second release paper fixed pulley are connected through release paper and used for covering the release paper on the lower surface of the butyl rubber vibration damping belt; the butyl rubber damping band is clamped between the adhesive film and the release paper by the traction wheel, and is formed by traction and extrusion of the traction wheel; the first release paper fixed pulley, the second release paper fixed pulley and the adhesive film wheel are driven by the traction wheel to run;
the butyl rubber vibration damping belt tension control device comprises a tractor discharging speed sensor, a tension sensor, an extruder discharging speed sensor, a PLC control system which is connected with the tractor discharging speed sensor, the tension sensor, the extruder discharging speed sensor and a variable frequency motor and realizes data acquisition and tension control, wherein the tractor discharging speed sensor is installed on a butyl rubber vibration damping belt discharging tractor, the tension sensor is installed on a tension pulley, the extruder discharging speed sensor is installed on a butyl rubber vibration damping belt feeding extruder, the tractor discharging speed sensor and the extruder discharging speed sensor are used for feeding back the advancing speed of the butyl rubber vibration damping belt, the tension sensor is used for feeding back the actual tension of the butyl rubber vibration damping belt, the PLC control system is used for adjusting the rotating speed of the variable frequency motor and the rotating speed of the traction pulley according to the feedback of the tractor discharging speed sensor, the tension sensor and the extruder discharging speed sensor, so as to realize the tension control of the butyl rubber vibration damping belt, and the tension control effect of the butyl rubber vibration damping belt determines the smoothness and the geometric dimension of the butyl rubber vibration damping belt; and when the butyl rubber vibration damping belt discharging traction machine stably outputs the butyl rubber vibration damping belt, the automatic production of the butyl rubber vibration damping belt is realized by means of the continuous operation and the automatic tension control of the butyl rubber vibration damping belt discharging traction machine.
Preferably, be equipped with control panel and switch board on the tractor base, PLC control system locates in the switch board, control panel is used for controlling PLC control system.
Preferably, the butyl rubber vibration damping belt feeding extruder and the butyl rubber vibration damping belt discharging tractor are fixed on a stable foundation, the extruder base and the tractor base are located on the same horizontal plane, and the central lines of the extruder base and the tractor base are on the same line.
Preferably, the range of the extruder discharging speed sensor is 0-5 m/s, and the output signal is 4-20mA; the range of the tractor discharging speed sensor is 0-5 m/s, and the output signal is 4-20mA; the measuring range of the tension sensor is 0-100kg, and the output signal is 4-20mA.
A tension control method for a butyl rubber vibration damping belt production line comprises the following tension control formula:
Δu 1 (k)＝K 1 [V j (k)-V q (k)] (1)
Δu 2 (k)＝K 2 [V j (k)-V j (k-1)-V q (k)+V q (k-1)]+K 3 [V j (k)-V q (k)] (2)
u 3 (k)＝K 4 F e (K) (3)
u 1 (k)＝u 1 (k-1)+Δu 1 (k) (4)
u 2 (k)＝u 2 (k-1)+Δu 2 (k) (5)
u(k)＝k 4 u 1 (k)+K 5 u 2 (k)+u 3 (k) (6)
in the formulae (1) to (6), K 1 、K 2 、K 3 、K 4 And K 5 Is a coefficient, V j (k) Feeding the butyl rubber damping band into the extruder at the current moment at the discharging speed V q (k) The damping of butyl rubber at the present moment brings the discharging speed, V, of the discharging tractor j (k-1) the discharging speed of the butyl rubber vibration damping band feeding extruder in the previous period, V q (k-1) the discharging speed of the butyl rubber vibration damping belt discharging tractor in the previous period, F e (k) The deviation between the actual tension value fed back by the tension sensor at the current moment and the tension value required by the process is obtained;
u 1 (k) For the output of the first control component at the present moment, u 1 (k-1) is the output of the first control component of the previous cycle, Δ u 1 (k) The output increment of the first control component at the current moment; u. u 2 (k) For the output of the second control component at the present moment, u 2 (k-1) is the output of the second control component of the previous cycle, Δ u 2 (k) The output increment of the second control component at the current moment; u. of 3 (k) The output of the third control component at the current moment is u (k), and the u (k) is the total output of the controller at the current moment and is used for controlling the rotating speed of the traction wheel motor;
and under the action of u (k), the rotating speed of the variable frequency motor is dynamically adjusted, so that the automatic control of the tension of the butyl rubber vibration damping belt is realized, and the actual tension value stably tracks the tension value required by the process.
Preferably, K 1 、K 2 、K 3 And K 4 The on-site setting values of the coefficients are 10.0,10.0,5.0 and 15.0, respectively.
Preferably, the coefficient K 4 And K 5 The values of (A) are as follows:
due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. promote the production efficiency of butyl rubber damping piece, solve current manual production mode inefficiency, the product uniformity is poor, and workman intensity of labour is big, and operational environment subalternation problem solves operating personnel and relies on the manpower to drag butyl rubber damping to bring the operating personnel's that control tension arouses safety problem on moving production line.
2. Promote the performance of butyl rubber damping piece, solve and rely on operating personnel manual control butyl rubber damping stop band production tension, be difficult to control tensile stability and uniformity, the butyl rubber damping piece of producing levels inadequately, the great scheduling problem of geometric dimension error.
Drawings
FIG. 1 is a butyl rubber vibration damping belt feed extruder;
FIG. 2 is a butyl rubber vibration damping belt discharging tractor;
FIG. 3 shows a production line and a tension control device for butyl rubber vibration damping belts.
Reference numerals
In the attached drawing, 1-extruder base, 2-extruder feeding plate 1,3-extruder feeding hole, 4-extruder discharging hole, 5-first butyl rubber damping block size shaping plate, 6-tractor base, 7-first release paper fixed pulley, 8-release paper, 9-second release paper fixed pulley, 10-tension wheel, 11-second butyl rubber damping block size shaping plate, 12-traction wheel, 13-adhesive film, 14-adhesive film wheel, 15-control plate, 16-control cabinet, 17-tractor discharging speed sensor, 18-tension sensor and 19-extruder discharging speed sensor.
Detailed Description
Referring to fig. 1-3, a butyl rubber vibration damping belt production line is shown. The method comprises the following steps:
1. butyl rubber vibration damping belt feeding extruder
The butyl rubber damping band feeding extruder is mainly composed of an extruder base 1, an extruder feeding plate 2, an extruder feeding hole 3, an extruder discharging hole 4, a first butyl rubber damping block size shaping plate 5 and the like, as shown in figure 1. The butyl rubber vibration damping belt feeding extruder applies certain extrusion force to raw materials for producing the butyl rubber vibration damping belt in a granular shape, a lump shape, a strip shape and the like through the extruder, and the extrusion discharge amount is controlled to form the butyl rubber vibration damping belt which meets the process requirements.
2. Butyl rubber vibration damping belt discharging tractor
The butyl rubber vibration damping belt discharging tractor is shown in figure 2. Butyl rubber damping takes ejection of compact tractor comprises tractor base 6, and is first from type paper fixed pulley 7, from type paper 8, and the second is from type paper fixed pulley 9, tension pulley 10, second butyl rubber damping block size stereotype 11, traction wheel 12, glued membrane 13, glued membrane wheel 14, control board 15 and switch board 16. The butyl rubber vibration damping belt discharging traction machine is used for drawing the butyl rubber vibration damping belt discharged by the butyl rubber vibration damping belt feeding extruder, so that stable tension is ensured, the drawn butyl rubber vibration damping belt is smooth, and the size meets the specified requirements.
3. Butyl rubber vibration damping belt automatic production line
(1) Installation of an extruder and a tractor
The automatic production line of the butyl rubber vibration damping belt comprises a butyl rubber vibration damping belt feeding extruder and a butyl rubber vibration damping belt discharging tractor. During installation, the butyl rubber vibration damping belt feeding extruder and the butyl rubber vibration damping belt discharging tractor are fixed on a stable foundation, bases of the butyl rubber vibration damping belt feeding extruder and the butyl rubber vibration damping belt discharging tractor are on the same horizontal line, and central lines of the butyl rubber vibration damping belt feeding extruder and the butyl rubber vibration damping belt discharging tractor are on the same line.
(2) Layout and installation of sensors
An extruder discharging speed sensor 19 is designed and installed at the discharging position of the butyl rubber damping belt extruder, a tractor discharging speed sensor 17 is designed and installed at the discharging position of the butyl rubber damping belt discharging tractor, and a tension sensor 18 is designed and installed at the position 10 of a butyl rubber damping belt discharging tractor tension pulley.
The range of the extruder discharging speed sensor is 0-5 m/s, and the output signal is 4-20mA; the measuring range of the tractor discharging speed sensor is 0-5 m/s, and the output signal is 4-20mA; the measuring range of the tension sensor is 0-100kg, and the output signal is 4-20mA.
(3) Production process of butyl rubber vibration damping belt
When the production is carried out for the first time or when the production is carried out for the second time after the machine is stopped, certain manual operation is required to be carried out by an operator. An operator starts an extruder, raw materials for producing butyl rubber damping belts on a feeding plate 2 of the extruder are put into a feeding hole 3 of the extruder, the raw materials for producing granular, lump or strip-shaped butyl rubber damping belts are extruded and shaped through the extruder to form the butyl rubber damping belts, the operator enables the butyl rubber damping belts to pass through a first butyl rubber damping block size shaping plate 5, the butyl rubber damping belts pass through a tension wheel 10 and a second butyl rubber damping block size shaping plate 11 to be sent to the lower part of a traction wheel 12, the butyl rubber damping belts are clamped between an adhesive film 13 and release paper 8 through the traction wheel 12, and the butyl rubber damping belts with adhesive films and the release paper on two sides are formed through traction and extrusion of the traction wheel 12.
After the butyl rubber vibration damping belt discharging traction machine stably outputs the butyl rubber vibration damping belt, the automatic production of the butyl rubber vibration damping belt can be realized by means of the continuous operation and the automatic tension control of the butyl rubber vibration damping belt discharging traction machine.
4. Butyl rubber vibration damping belt tension control device
The traction wheel 12 of the butyl rubber vibration damping belt discharging tractor is driven by a variable frequency motor, and the release paper fixed pulleys 7 and 9 and the adhesive film wheel 14 are driven by the traction wheel in operation. The flatness and the geometric dimension of the butyl rubber vibration damping belt are determined by the tension control effect of the butyl rubber vibration damping belt, and the tension control of the butyl rubber vibration damping belt can be realized by adjusting the speed of the traction wheel.
The tension control device consists of a tractor discharging speed sensor 17, a tension sensor 18, an extruder discharging speed sensor 19 and a PLC control system for realizing data acquisition and tension control, and the PLC control system is placed in a control cabinet 16.
The extruder discharging speed sensor 19 and the tractor discharging speed sensor 17 feed back the advancing speed of the butyl rubber vibration damping band, and the advancing speed of the butyl rubber vibration damping band and the tractor discharging speed sensor should be theoretically consistent, but due to the influence of many disturbance factors, the butyl rubber vibration damping band and the tractor discharging speed sensor are inconsistent, the actual tension value of the butyl rubber vibration damping band at the moment deviates from the tension value required by the process, and therefore the flatness and the geometric dimension of the butyl rubber vibration damping band are influenced. The tension sensor 18 feeds back the actual tension of the butyl rubber vibration damping band in real time, and accordingly, the degree of deviation of the actual tension value of the butyl rubber vibration damping band from the tension value required by the process can be further judged. Feedback information of the three sensors is integrated, a PLC control program is compiled through the control algorithm provided by the invention, and the rotating speed of the traction wheel is dynamically adjusted, so that the dynamic adjustment of the actual tension value can be realized, and the tension value is ensured to meet the process requirements.
Tension control method for butyl rubber vibration damping belt production line
The tension control formula provided by the invention is as follows:
Δu 1 (k)＝K 1 [V j (k)-V q (k)] (1)
Δu 2 (k)＝K 2 [V j (k)-V j (k-1)-V q (k)+V q (k-1)]+K 3 [V j (k)-V q (k)] (2)
u 3 (k)＝K 4 F e (K) (3)
u 1 (k)＝u 1 (k-1)+Δu 1 (k) (4)
u 2 (k)＝u 2 (k-1)+Δu 2 (k) (5)
u(k)＝K 4 u 1 (k)+K 5 u 2 (k)+u 3 (k) (6)
in formulae (1) to (7), K 1 、K 2 、K 3 And K 4 The coefficients, with field settings of 10.0,10.0,5.0 and 15.0, respectively j (k) For the extruder discharge speed (measured value), V, at the present moment q (k) For the current moment of the tractor discharge speed (measured value), V j (k-1) is the extruder discharge velocity in the previous cycle, V q And (k-1) is the discharge speed of the tractor in the previous period. F e (k) The actual tension value fed back by the tension sensor at the current moment and the tension value required by the processThe deviation of (2).
u 1 (k) For the output of the first control component at the present moment, u 1 (k-1) is the output of the first control component of the previous cycle, Δ u 1 (k) The output increment of the first control component at the current moment; u. of 2 (k) For the output of the second control component at the present moment, u 2 (k-1) is the output of the second control component of the previous cycle, Δ u 2 (k) The output increment of the second control component at the current moment; u. of 3 (k) And u (k) is the total output (total control quantity) of the controller at the current moment, and is used for controlling the rotating speed of the traction wheel motor.
Coefficient K 4 And K 5 The values of (a) are as follows:
the speed of the traction wheel motor is regulated by a frequency converter, and the rotating speed of the traction wheel motor is controlled by u (k).
And under the action of u (k), the rotating speed of a traction wheel motor is dynamically adjusted, so that the automatic control of the tension of the butyl rubber vibration damping belt is realized, and the actual tension value stably tracks the tension value required by the process.
Aiming at the technical scheme, the production line of the butyl rubber damping belt and the tension control thereof can be realized according to the following steps.
The first step is as follows: installing a butyl rubber damping belt feeding extruder and a butyl rubber damping belt discharging tractor according to attached drawings 1, 2 and 3 to form a butyl rubber damping belt production line;
the second step is that: a tractor discharge speed sensor, a tension sensor and an extruder discharge speed sensor are installed according to the figure 3.
The third step: designing and installing a set of PLC system, and putting the PLC system into a control cabinet of a production line;
the fourth step: and feedback signals of the tractor discharging speed sensor, the tension sensor and the extruder discharging speed sensor are connected into the PLC system.
The fifth step: and compiling a data acquisition program, an equipment start-stop control program and an interlocking protection control program, compiling a tension control program according to a tension control formula, and downloading the program to the PLC system.
And a sixth step: the production process monitoring of the butyl rubber damping belt is realized by configuring a necessary human-computer interface through the touch screen.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, 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 scope of the invention as defined by the appended claims.
Claims (6)
1. A tension control method of a butyl rubber vibration damping band production line is characterized in that the butyl rubber vibration damping band production line comprises a butyl rubber vibration damping band feeding extruder which is used for controlling the extrusion discharge amount of raw materials for producing a butyl rubber vibration damping band by applying extrusion force to form a butyl rubber vibration damping band; the butyl rubber damping belt feeding extruder is provided with an extruder base (1), wherein an extruder feeding plate (2), an extruder feeding hole (3), an extruder discharging hole (4) and a first butyl rubber damping block size shaping plate (5) are sequentially arranged on the extruder base (1) along the feeding direction;
the butyl rubber vibration damping belt discharging traction machine is used for drawing the butyl rubber vibration damping belt discharged by the butyl rubber vibration damping belt feeding extruder, so that the butyl rubber vibration damping belt is ensured to have stable tension, the drawn butyl rubber vibration damping belt is smooth, and the size meets the requirement; the butyl rubber vibration damping belt discharging traction machine is provided with a traction machine base (6), and a tension wheel (10), a second butyl rubber vibration damping block size shaping plate (11) and a traction wheel (12) are sequentially arranged on the traction machine base (6) along the feeding direction; the sizing channels are respectively arranged on the first butyl rubber damping block size sizing plate (5) and the second butyl rubber damping block size sizing plate (11), and the size of the butyl rubber damping band is controlled through the first butyl rubber damping block size sizing plate (5) and the second butyl rubber damping block size sizing plate (11); the tractor base (6) is further provided with a rubber film wheel (14), a first release paper fixed pulley (7) and a second release paper fixed pulley (9), the rubber film wheel (14) is connected with the traction wheel (12) through a rubber film (13) and used for covering the rubber film (13) on the upper surface of the butyl rubber vibration damping belt, and the first release paper fixed pulley (7) and the second release paper fixed pulley (9) are connected through release paper (8) and used for covering the release paper (8) on the lower surface of the butyl rubber vibration damping belt; the butyl rubber damping band is clamped between the adhesive film (13) and the release paper (8) by the traction wheel (12), and the butyl rubber damping band with the adhesive film (13) and the release paper (8) is formed by traction and extrusion of the traction wheel (12); the traction wheel (12) is driven by a variable frequency motor, and the first release paper fixed pulley (7), the second release paper fixed pulley (9) and the adhesive film wheel (14) are driven by the traction wheel (12) in operation;
the butyl rubber vibration damping belt tension control device comprises a tractor discharging speed sensor (17), a tension sensor (18), an extruder discharging speed sensor (19), a PLC control system for connecting the tractor discharging speed sensor (17), the tension sensor (18), the extruder discharging speed sensor (19) and a variable frequency motor and realizing data acquisition and tension control, wherein the tractor discharging speed sensor (17) is installed on a butyl rubber vibration damping belt discharging tractor, the tension sensor (18) is installed on a tension wheel (10), the extruder discharging speed sensor (19) is installed on a butyl rubber vibration damping belt feeding extruder, the tractor discharging speed sensor (17) and the extruder discharging speed sensor (19) are used for feeding back the forward speed of the butyl rubber vibration damping belt, the tension sensor (18) is used for feeding back the actual tension of the butyl rubber damping belt, and the PLC control system is used for adjusting the rotating speed of the variable frequency motor and the rotating speed of the traction wheel (12) according to the feedback of the tractor discharging speed sensor (17), the tension sensor (18) and the extruder discharging speed sensor (19), so as to realize tension control of the butyl rubber damping belt, and determine the damping belt flatness and the damping belt; after the butyl rubber vibration damping belt discharging traction machine stably outputs the butyl rubber vibration damping belt, the automatic production of the butyl rubber vibration damping belt is realized by means of the continuous operation and the automatic tension control of the butyl rubber vibration damping belt discharging traction machine;
the tension control equation is as follows:
in the formulas (1) to (6), K1, K2, K3, K4 and K5 are coefficients, vj (K) is the discharging speed of a butyl rubber vibration damping band feeding extruder at the current moment, vq (K) is the discharging speed of a butyl rubber vibration damping band discharging tractor at the current moment, vj (K-1) is the discharging speed of a butyl rubber vibration damping band feeding extruder at the last period, vq (K-1) is the discharging speed of a butyl rubber vibration damping band discharging tractor at the last period, and Fe (K) is the deviation of the actual tension value fed back by a tension sensor at the current moment and the tension value required by the process;
u1 (k) is the output of the first control component at the current moment, u1 (k-1) is the output of the first control component in the last period, and u1 (k) is the output increment of the first control component at the current moment; u2 (k) is the output of the second control component at the current moment, u2 (k-1) is the output of the second control component in the last period, and u2 (k) is the output increment of the second control component at the current moment; u3 (k) is the output of the third control component at the current moment, and u (k) is the total output of the controller at the current moment and is used for controlling the rotating speed of the traction wheel motor;
and under the action of u (k), the rotating speed of the variable frequency motor is dynamically adjusted, so that the automatic control of the tension of the butyl rubber vibration damping belt is realized, and the actual tension value stably tracks the tension value required by the process.
2. The tension control method for the butyl rubber vibration damping belt production line according to claim 1, wherein the tension control method comprises the following steps: be equipped with control panel (15) and switch board (16) on tractor base (6), PLC control system locates in switch board (16), control panel (15) are used for controlling PLC control system.
3. The tension control method for the butyl rubber vibration damping belt production line according to claim 1, wherein the tension control method comprises the following steps: the butyl rubber vibration damping belt feeding extruder and the butyl rubber vibration damping belt discharging tractor are fixed on a stable foundation, the extruder base (1) and the tractor base (6) are located on the same horizontal plane, and the central lines of the extruder base (1) and the tractor base (6) are on the same line.
4. The tension control method for the butyl rubber vibration damping belt production line according to claim 1, wherein the tension control method comprises the following steps: the measuring range of the extruder discharging speed sensor (19) is 0-5 m/s, and the output signal is 4-20mA; the range of the tractor discharging speed sensor (17) is 0-5 m/s, and the output signal is 4-20mA; the measuring range of the tension sensor (18) is 0-100kg, and the output signal is 4-20mA.
5. The tension control method for the butyl rubber vibration damping belt production line according to claim 1, wherein the tension control method comprises the following steps:K1、K2、K3 andKthe on-site setting values of the 4 coefficients are 10.0,10.0,5.0 and 15.0, respectively.
6. The tension control method for a butyl rubber vibration damping belt production line according to claim 1 or 5, wherein: coefficient of performanceK4 andKthe values of 5 are as follows:
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