CN101898412B - Extrusion control device of weight-loss type measuring control system - Google Patents

Extrusion control device of weight-loss type measuring control system Download PDF

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Publication number
CN101898412B
CN101898412B CN200910057330.3A CN200910057330A CN101898412B CN 101898412 B CN101898412 B CN 101898412B CN 200910057330 A CN200910057330 A CN 200910057330A CN 101898412 B CN101898412 B CN 101898412B
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speed
control module
weighing
unit
main motor
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CN200910057330.3A
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CN101898412A (en
Inventor
彭湃
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Shanghai Sonner Machinery Co Ltd
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Shanghai Sonner Machinery Co Ltd
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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
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/92085—Velocity
    • B29C2948/92095—Angular velocity
    • 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
    • B29C2948/92009—Measured parameter
    • B29C2948/9218—Weight
    • 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
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
    • 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
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92457—Drive section, e.g. gearbox, motor or drive fluids
    • 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
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/92676—Weight
    • 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
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • 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
    • B29C2948/92857—Extrusion unit
    • B29C2948/92866—Inlet shaft or slot, e.g. passive hopper; Injector, e.g. injector nozzle on barrel
    • 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
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/92952—Drive section, e.g. gearbox, motor or drive fluids

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses an extrusion control device of a weight-loss type measuring control system, which comprises a weighing feed bin, a weighing unit, a speed measuring unit of an extrusion main motor, a hauling speed measuring unit, a control unit and a speed controlling unit of the extrusion main motor, wherein the weighing feed bin is directly arranged on a feed inlet of an extruder and is used for storing raw materials to be measured; the weighing unit is directly connected with the weighing feed bin and is used for detecting weight change of the raw materials in the weighing feed bin; the speed measuring unit of the extrusion main motor is connected with the weighing unit, is installed at a screw tail of the extruder and is used for detecting the actual speed of the extruder screw; the hauling speed measuring unit is arranged on a main driving motor of a molding device of a film production line or a tubing production line and is used for detecting the actual hauling speed of a main driving roller of the molding device; the control unit is connected with the hauling speed measuring unit and is used for generating running speed signals in accordance with the set yield; and the speed controlling unit of the extrusion main motor is connected with the weighing feed bin and is used for controlling the rotating speed of the extruder screw. The invention can effectively solve the problem of constant quality of dynamic control products.

Description

Weight-loss type measurement control system extrude control device
Technical field
The present invention relates to a kind of metering device, particularly relate to a kind of control device of extruding of weight-loss type measurement control system.
Background technology
The extrusion system of plastic sheeting, tubing, blowing, sheet material and sheet material, due to heating-up temperature, draping pressure and solid accumulation density constantly change, and directly cause and extrude output fluctuation, make film, tubing, blow-molded article, plastic sheet and slab products have the problem of following technique:
1, cannot Rapid Establishment extrude motor speed and extrude the relation of flow, cause in extrusion system boot running time longlyer, material waste be more.
2, in continuous flow procedure, cannot detect the fluctuation variation of extruding output, product integral thickness or weight cannot be ensured.
3, in actual production process, because overall weight cannot ensure, generally goods overall weight is set to the upper limit of national standard, cost of material is increased.
Summary of the invention
The technical problem to be solved in the present invention is the defect in order to overcome prior art, and a kind of control device of extruding of weight-loss type measurement control system is provided, and it solves the constant mass problem of dynamic control products effectively.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of weight-loss type measurement control system extrude control device, it is characterized in that, it comprises:
Weighing silo, the feeding mouth that it is directly installed on an extruder, is used for storing raw material to be measured;
Weighing unit, it is directly connected with weighing silo, for detection of the changes in weight of the raw material in weighing silo;
Extrude the main motor unit that tests the speed, it is connected and is arranged on the screw rod tail of extruder with weighing unit, for detection of the actual speed of extruder screw;
The hauling speed unit that tests the speed, it is arranged on the main CD-ROM drive motor of shaped device of film line or pipe production line, is used for detecting the actual hauling speed of shaped device main drive roll;
Control module, it is connected with the hauling speed unit that tests the speed, and it produces running speed signal according to the output of setting;
Extrude main motor speed control module, it is connected with weighing silo, and it is the screw speed for controlling extruder.
Preferably, described in extrude main motor speed control module and be also connected with control module, and accept the running speed signal of control module.
Preferably, described control module is by weighing unit and detect the variation of material actual production in weighing silo based on weight-loss type principle, control module at the same time within by extruding the main motor unit measurement extruder main motor actual speed that tests the speed.
Preferably, the control model of extruding control device of described weight-loss type measurement control system is output or flow control mode.
Another technical scheme of the present invention, for a kind of control device of extruding of weight-loss type measurement control system is provided, is characterized in that, it comprises: weighing silo, and the feeding mouth that it is directly installed on an extruder, is used for storing raw material to be measured;
Weighing unit, it is directly connected with weighing silo, for detection of the changes in weight of the raw material in weighing silo;
Extrude main motor speed control module, it is connected with weighing silo, and it is the screw speed for controlling extruder;
Extrude the main motor unit that tests the speed, itself and the screw rod tail of extruding main motor speed control module and be connected and be arranged on extruder, for detection of the actual speed of extruder screw;
Control module, it is connected with weighing unit, and it produces running speed signal according to the output of setting.
Preferably, described in extrude main motor speed control module and be also connected with control module, and accept the running speed signal of control module.
Preferably, described control module is by weighing unit and detect the variation of material actual production in weighing silo based on weight-loss type principle, control module at the same time within by extruding the main motor unit measurement extruder main motor actual speed that tests the speed.
Preferably, the control model of extruding control device of described weight-loss type measurement control system is the heavy control model of rice.
Positive progressive effect of the present invention is:
1, can Rapid Establishment extrude motor speed and extrude the relation of flow, shorter in extrusion system boot running time, material waste be less.
2, in continuous flow procedure, detect the fluctuation variation of extruding output, and controlled, product integral thickness or weight are guaranteed.
3, in actual production process, because overall weight can be guaranteed, goods overall weight can be set in to the lower limit of national standard, cost of material is reduced.
Brief description of the drawings
Fig. 1 is the schematic diagram of extruding control device that the present invention is based on the weight-loss type measurement control system of output or flow control mode.
Fig. 2 is the schematic diagram of extruding control device that the present invention is based on the weight-loss type measurement control system of meter heavy control model.
Detailed description of the invention
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
The control model of extruding control device of weight-loss type measurement control system comprises the heavy control model of output or flow control mode and rice, as shown in Figure 1, the control device of extruding of output or flow control mode is applied in plastics blow molding, sheet material and sheet extrusion system, it utilizes output control principle accurately to control and extrude flow, and effective constant mass problem that must solve dynamic control products, this is extruded control device and comprises weighing silo 1, weighing unit 2, extrude the main motor unit 3 that tests the speed, the hauling speed unit 4 that tests the speed, control module 5 and extrude main motor speed control module 6, weighing silo 1 is directly installed on the feeding mouth of extruder, be used for storing raw material to be measured, weighing unit 2 is directly connected with weighing silo 1, for detection of the changes in weight of the raw material of 1 li of weighing silo, i.e. extruder actual production flow, extrude test the speed unit 3 and weighing unit 2 of main motor and be connected and be arranged on the screw rod tail of extruder, for detection of the actual speed of extruder screw, the hauling speed unit 4 that tests the speed is arranged on the main CD-ROM drive motor of shaped device of film line or pipe production line, is used for detecting the actual hauling speed of shaped device main drive roll, extruder main motor is used for driving extruder screw, goes out main motor speed control module 6 and is connected with weighing silo 1, and extruding main motor speed control module 6 is for controlling extruder screw rotating speed.
The operation principle of extruding control device of output or flow control mode is: control module 5 and the hauling speed unit 4 that tests the speed, extruding main motor speed control module 6 connects, when control module 5 produces speed of service rev/min signal according to the output g/min setting or Kg/hr, and speed of service rev/min signal is given to and extrudes main motor speed control module 6, extrusion system starts to provide required material for production line, simultaneously, control module 5 starts by weighing unit 2 variation based on weight-loss type principle detection 1 li of material actual production g/min of weighing silo or Kg/hr, control module 5 within the same time by extruding the main motor unit 3 that tests the speed, measure extruder main motor actual speed rev/min, control module 5 according to the deviation ratio between actual output g/min and actual speed rev/min and setting output g/min and setting speed rev/min, the operating point speed of service rev/min that calculating makes new advances, constantly adjust and extrude main motor speed, to eliminate deviation.
The control device of extruding of the heavy control model of rice is applied in plastic sheeting, the heavy control principle of tube extrusion process technology utilization rice is accurately controlled and is extruded flow, thereby effectively solve the constant problem of the quality of dynamic control products, this is extruded control device and comprises weighing silo 1, weighing unit 2, extrudes main motor test the speed unit 3, control module 5 and extrude main motor speed control module 6, weighing silo 1 is directly installed on the feeding mouth of extruder, is used for storing raw material to be measured; Weighing unit 2 is directly connected with weighing silo 1, for detection of the changes in weight of the raw material of 1 li of weighing silo, i.e. extruder actual production flow; Extrude main motor test the speed unit 3 and the screw rod tail of extruding main motor speed control module 6 and be connected and be arranged on extruder, for detection of the actual speed of extruder screw; Extruder main motor is used for driving extruder screw, extrudes main motor speed control module 6 and is connected with weighing silo 1, and extruding main motor speed control module 6 is for controlling extruder screw rotating speed.
The operation principle of extruding control device of the heavy control model of rice is: control module 5 and weighing unit 2, extruding main motor speed control module 6 connects, when control module 5 is according to the density of the heavy g/m of the rice of setting and material, calculate and extrude output g/min and speed of service rev/min signal, speed of service rev/min signal is given to extruder main motor speed unit 6, extrusion system starts to provide required material for production line, simultaneously, control module 5 starts by weighing unit 2 variation based on weight-loss type principle detection 1 li of material actual production g/min of weighing silo or Kg/hr, control module 5 within the same time by extruding the main motor unit 3 that tests the speed, measure extruder main motor actual speed rev/min and main hauling speed re/min, control module 5 is according to actual output g/min and actual motor speed rev/min and the actual hauling speed rev/min of extruding, calculate actual g/m, and the deviation ratio between the heavy g/m of setting rice and setting speed rev/min, the operating point speed of service rev/min that calculating makes new advances, constantly adjust and extrude main motor speed, to eliminate deviation.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, do not deviating under the prerequisite of principle of the present invention and essence, can make various changes or modifications to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.

Claims (2)

  1. Weight-loss type measurement control system extrude a control device, it is characterized in that, it comprises:
    Weighing silo, the feeding mouth that it is directly installed on an extruder, is used for storing raw material to be measured;
    Weighing unit, it is directly connected with weighing silo, for detection of the changes in weight of the raw material in weighing silo;
    Extrude the main motor unit that tests the speed, it is connected and is arranged on the screw rod tail of extruder with weighing unit, for detection of the actual speed of extruder screw;
    The hauling speed unit that tests the speed, it is arranged on the main CD-ROM drive motor of shaped device of film line or pipe production line, is used for detecting the actual hauling speed of shaped device main drive roll;
    Control module, it is connected with the hauling speed unit that tests the speed, and it produces running speed signal according to the output of setting;
    Extrude main motor speed control module, it is connected with weighing silo, and it is the screw speed for controlling extruder;
    Describedly extrude main motor speed control module and be also connected with control module, and accept the running speed signal of control module;
    Described control module is by weighing unit the variation based on material actual production in weight-loss type principle detection weighing silo, control module is measured extruder main motor actual speed by extruding the main motor unit that tests the speed within the same time, control module according to the deviation ratio between actual output and actual speed and setting output and setting speed, the operating point speed of service that calculating makes new advances, adjusts and extrudes motor speed.
    The control model of extruding control device of described weight-loss type measurement control system is output or flow control mode.
  2. Weight-loss type measurement control system extrude a control device, it is characterized in that, it comprises:
    Weighing silo, the feeding mouth that it is directly installed on an extruder, is used for storing raw material to be measured;
    Weighing unit, it is directly connected with weighing silo, for detection of the changes in weight of the raw material in weighing silo;
    Extrude main motor speed control module, it is connected with weighing silo, and it is the screw speed for controlling extruder;
    Extrude the main motor unit that tests the speed, itself and the screw rod tail of extruding main motor speed control module and be connected and be arranged on extruder, for detection of the actual speed of extruder screw;
    Control module, it is connected with weighing unit, and it produces running speed signal according to the output of setting;
    Describedly extrude main motor speed control module and be also connected with control module, and accept the running speed signal of control module;
    Described control module is by weighing unit the variation based on material actual production in weight-loss type principle detection weighing silo, control module is measured extruder main motor actual speed and main hauling speed by extruding the main motor unit that tests the speed within the same time, control module calculates actual meter Chong Yu and sets deviation ratio between meter Chong and setting speed according to actual output and actual motor speed and the actual hauling speed extruded, the operating point speed of service that calculating makes new advances, adjusts and extrudes main motor speed.
    The control model of extruding control device of described weight-loss type measurement control system is the heavy control model of rice.
CN200910057330.3A 2009-05-27 2009-05-27 Extrusion control device of weight-loss type measuring control system Active CN101898412B (en)

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CN105479719B (en) * 2016-01-22 2019-06-07 王燕静 A kind of weightless integral type of weighing squeezes out control system and method
CN106393649A (en) * 2016-08-31 2017-02-15 绵阳沃思测控技术有限公司 Outer diameter control method and outer diameter control system applied to production of cable protective sleeve
CN111251491B (en) * 2018-12-03 2022-02-22 宁波优禾新材料科技有限公司 A equipment for masterbatch production
CN111688145B (en) * 2020-06-06 2020-12-29 浙江奥博管业股份有限公司 Plastic pipe extrusion molding equipment and control method thereof
CN111730840B (en) * 2020-06-30 2022-04-15 绍兴市同德管业有限公司 Plastic tubing production and processing equipment
CN113001934A (en) * 2021-03-01 2021-06-22 山东正泰电缆有限公司 Gravity metering feeding and feeding system

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Publication number Priority date Publication date Assignee Title
CN1065235A (en) * 1991-03-27 1992-10-14 温德米勒和赫尔歇公司 Determine the method and apparatus of extruder acceptance from the material rate of feeding container
DE19939042A1 (en) * 1999-08-18 2001-03-08 Alfons Tschritter Gmbh Plastic granulate compound preparation prior to feeding a processing machine, uses a combined material mixing and weighing unit
CN1303477A (en) * 1998-05-29 2001-07-11 劳特精密产品公司 Loss-in-weight feeder control
CN1817616A (en) * 2006-03-27 2006-08-16 王根乐 Method for controlling film thickness automatically and weighing device thereof
CN201464010U (en) * 2009-05-27 2010-05-12 上海松耐机械制造有限公司 Weight-loss type measurement control system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065235A (en) * 1991-03-27 1992-10-14 温德米勒和赫尔歇公司 Determine the method and apparatus of extruder acceptance from the material rate of feeding container
CN1303477A (en) * 1998-05-29 2001-07-11 劳特精密产品公司 Loss-in-weight feeder control
DE19939042A1 (en) * 1999-08-18 2001-03-08 Alfons Tschritter Gmbh Plastic granulate compound preparation prior to feeding a processing machine, uses a combined material mixing and weighing unit
CN1817616A (en) * 2006-03-27 2006-08-16 王根乐 Method for controlling film thickness automatically and weighing device thereof
CN201464010U (en) * 2009-05-27 2010-05-12 上海松耐机械制造有限公司 Weight-loss type measurement control system

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Address after: 201612, Shanghai Brick Road No. 22, No. 518, building 1-3, A District

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