CN101898412A - 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
CN101898412A
CN101898412A CN2009100573303A CN200910057330A CN101898412A CN 101898412 A CN101898412 A CN 101898412A CN 2009100573303 A CN2009100573303 A CN 2009100573303A CN 200910057330 A CN200910057330 A CN 200910057330A CN 101898412 A CN101898412 A CN 101898412A
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speed
weighing
weight
unit
extrude
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CN2009100573303A
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Chinese (zh)
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CN101898412B (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

The weight-loss type Measurement and 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 and Control System.
Background technology
The extrusion system of plastic sheeting, tubing, blowing, sheet material and sheet material, because 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 technology:
1, can't set up the relation of extruding motor speed and extruding flow fast, cause in the extrusion system boot running time longlyer, material waste is more.
2, in continuous flow procedure, can't detect the fluctuation of extruding output and change, make product integral thickness or weight to guarantee.
3, in actual production process, because overall weight can't guarantee that the general upper limit with goods overall weight setting national standard makes that cost of material increases.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome the defective of prior art, a kind of control device of extruding of weight-loss type Measurement and Control System to be provided, and it solves the constant quality of dynamic control products problem effectively.
The present invention solves above-mentioned technical problem by following technical proposals: a kind of weight-loss type Measurement and Control System extrude control device, it is characterized in that it comprises:
The feed bin of weighing, the feeding mouth that it is directly installed on an extruder is used for storing raw material to be measured;
Weighing unit, it directly is connected with the feed bin of weighing, and is used to detect the weight change of the raw material in the feed bin of weighing;
Extrude the main motor unit that tests the speed, it is connected and is installed in extruder with weighing unit screw rod tail is used to detect the actual speed of extruder screw;
The hauling speed unit that tests the speed, it is installed 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 output of setting;
Extrude main motor speed control module, it is connected with the feed bin of weighing, and it is the screw speed that is used for controlling extruder.
Preferably, describedly extrude main motor speed control module and also be connected, and accept the running speed signal of control module with control module.
Preferably, described control module detects the variation of material actual production in the feed bin of weighing by weighing unit and based on the weight-loss type principle, control module at the same time in by extruding the main motor unit measurement extruder master motor actual speed that tests the speed.
Preferably, the control model of extruding control device of described weight-loss type Measurement and Control System is output or flow control mode.
Another technical scheme of the present invention is characterized in that for a kind of control device of extruding of weight-loss type Measurement and Control System is provided it comprises: the feed bin of weighing, and the feeding mouth that it is directly installed on an extruder is used for storing raw material to be measured;
Weighing unit, it directly is connected with the feed bin of weighing, and is used to detect the weight change of the raw material in the feed bin of weighing;
Extrude main motor speed control module, it is connected with the feed bin of weighing, and it is the screw speed that is used for controlling extruder;
Extrude the main motor unit that tests the speed, its with extrude the screw rod tail that main motor speed control module is connected and is installed in extruder, be used to detect 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, describedly extrude main motor speed control module and also be connected, and accept the running speed signal of control module with control module.
Preferably, described control module detects the variation of material actual production in the feed bin of weighing by weighing unit and based on the weight-loss type principle, control module at the same time in by extruding the main motor unit measurement extruder master motor actual speed that tests the speed.
Preferably, the control model of extruding control device of described weight-loss type Measurement and Control System is the heavy control model of rice.
Positive progressive effect of the present invention is:
1, can set up the relation of extruding motor speed and extruding flow fast, shorter in the extrusion system boot running time, the material waste is less.
2, in continuous flow procedure, detect the fluctuation of extruding output and change, and controlled, make product integral thickness or weight be guaranteed.
3, in actual production process, because overall weight can be guaranteed, the goods overall weight can be set in the lower limit of national standard, make cost of material reduce.
Description of drawings
Fig. 1 is the schematic diagram of extruding control device that the present invention is based on the weight-loss type Measurement and 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 and Control System of meter heavy control model.
The specific embodiment
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 and 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 material extrusion system, it utilizes the output control principle accurately to control and extrudes flow, and effective constant quality of dynamic control products problem that must solve, this is extruded control device and comprises the feed bin 1 of weighing, 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, the feed bin 1 of weighing is directly installed on the feeding mouth of extruder, is used for storing raw material to be measured; Weighing unit 2 directly is connected with the feed bin 1 of weighing, and is used to detect the weigh weight change of raw material of 1 li of feed bin, i.e. extruder actual production flow; Extrude test the speed unit 3 and weighing unit 2 of main motor and be connected and be installed in the screw rod tail of extruder, be used to detect the actual speed of extruder screw; The hauling speed unit 4 that tests the speed is installed 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 master motor is used for driving extruder screw, goes out main motor speed control module 6 and is connected with the feed bin 1 of weighing, and extruding main motor speed control module 6 is to be used for controlling the 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 output g/min that sets or Kg/hr, and speed of service rev/min signal is given to extrudes main motor speed control module 6, extrusion system begins to provide required material for production line, simultaneously, control module 5 begins by weighing unit 2 and detects the variation of weigh feed bin 1 li material actual production g/min or Kg/hr based on the weight-loss type principle, control module 5 at the same time by extruding the main motor unit 3 that tests the speed, measure extruder master motor actual speed rev/min, control module 5 according to the output g/min of reality and actual speed rev/min and set between output g/min and the setting speed rev/min deviation ratio, 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, tubing is extruded the accurate control of the heavy control principle of processing technology utilization rice and is extruded flow, thereby effectively solve the constant problem of quality of dynamic control products, this is extruded control device and comprises the feed bin 1 of weighing, weighing unit 2, extrudes main motor test the speed unit 3, control module 5 and extrude main motor speed control module 6, the feed bin 1 of weighing is directly installed on the feeding mouth of extruder, is used for storing raw material to be measured; Weighing unit 2 directly is connected with the feed bin 1 of weighing, and is used to detect the weigh weight change of raw material of 1 li of feed bin, i.e. extruder actual production flow; Extrude main motor test the speed unit 3 with extrude the screw rod tail that main motor speed control module 6 is connected and is installed in extruder, be used to detect the actual speed of extruder screw; Extruder master motor is used for driving extruder screw, extrudes main motor speed control module 6 and is connected with the feed bin 1 of weighing, and extruding main motor speed control module 6 is to be used for controlling the 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 the density of control module 5 according to 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 master motor speed unit 6, extrusion system begins to provide required material for production line, simultaneously, control module 5 begins by weighing unit 2 and detects the variation of weigh feed bin 1 li material actual production g/min or Kg/hr based on the weight-loss type principle, control module 5 at the same time by extruding the main motor unit 3 that tests the speed, measure extruder master motor actual speed rev/min and main hauling speed re/min, control module 5 is according to the output g/min and the actual motor speed rev/min and the actual hauling speed rev/min of extruding of reality, calculate actual g/m, and the deviation ratio between heavy g/m of setting rice and the 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.
Though 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, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.

Claims (8)

  1. A weight-loss type Measurement and Control System extrude control device, it is characterized in that it comprises:
    The feed bin of weighing, the feeding mouth that it is directly installed on an extruder is used for storing raw material to be measured;
    Weighing unit, it directly is connected with the feed bin of weighing, and is used to detect the weight change of the raw material in the feed bin of weighing;
    Extrude the main motor unit that tests the speed, it is connected and is installed in extruder with weighing unit screw rod tail is used to detect the actual speed of extruder screw;
    The hauling speed unit that tests the speed, it is installed 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 output of setting;
    Extrude main motor speed control module, it is connected with the feed bin of weighing, and it is the screw speed that is used for controlling extruder.
  2. 2. weight-loss type Measurement and Control System as claimed in claim 1 extrude control device, it is characterized in that, describedly extrude main motor speed control module and also be connected, and accept the running speed signal of control module with control module.
  3. 3. weight-loss type Measurement and Control System as claimed in claim 1 extrude control device, it is characterized in that, described control module detects the variation of material actual production in the feed bin of weighing by weighing unit and based on the weight-loss type principle, control module at the same time in by extruding the main motor unit measurement extruder master motor actual speed that tests the speed.
  4. 4. weight-loss type Measurement and Control System as claimed in claim 1 extrude control device, it is characterized in that the control model of extruding control device of described weight-loss type Measurement and Control System is output or flow control mode.
  5. A weight-loss type Measurement and Control System extrude control device, it is characterized in that it comprises:
    The feed bin of weighing, the feeding mouth that it is directly installed on an extruder is used for storing raw material to be measured;
    Weighing unit, it directly is connected with the feed bin of weighing, and is used to detect the weight change of the raw material in the feed bin of weighing;
    Extrude main motor speed control module, it is connected with the feed bin of weighing, and it is the screw speed that is used for controlling extruder;
    Extrude the main motor unit that tests the speed, its with extrude the screw rod tail that main motor speed control module is connected and is installed in extruder, be used to detect 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.
  6. 6. weight-loss type Measurement and Control System as claimed in claim 5 extrude control device, its feature
    Be, describedly extrude main motor speed control module and also be connected, and accept the running speed signal of control module with control module.
  7. 7. weight-loss type Measurement and Control System as claimed in claim 5 extrude control device, it is characterized in that, described control module detects the variation of material actual production in the feed bin of weighing by weighing unit and based on the weight-loss type principle, control module at the same time in by extruding the main motor unit measurement extruder master motor actual speed that tests the speed.
  8. 8. weight-loss type Measurement and Control System as claimed in claim 5 extrude control device, it is characterized in that the control model of extruding control device of described weight-loss type Measurement and 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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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105479719A (en) * 2016-01-22 2016-04-13 王燕静 Weighing and weight losing integrated extrusion 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
CN111251491A (en) * 2018-12-03 2020-06-09 宁波优禾新材料科技有限公司 A equipment for masterbatch production
CN111688145A (en) * 2020-06-06 2020-09-22 浙江奥博管业股份有限公司 Plastic pipe extrusion molding equipment and control method thereof
CN111730840A (en) * 2020-06-30 2020-10-02 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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110135A1 (en) * 1991-03-27 1992-10-01 Windmoeller & Hoelscher METHOD AND DEVICE FOR DETERMINING THE QUANTITY DRAWN BY TIME FROM AN EXTRUDER FROM A TASK CONTAINER
FI107525B (en) * 1998-05-29 2001-08-31 Raute Prec Oy A method of feeding a finely divided substance
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105479719A (en) * 2016-01-22 2016-04-13 王燕静 Weighing and weight losing integrated extrusion 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
CN111251491A (en) * 2018-12-03 2020-06-09 宁波优禾新材料科技有限公司 A equipment for masterbatch production
CN111688145A (en) * 2020-06-06 2020-09-22 浙江奥博管业股份有限公司 Plastic pipe extrusion molding equipment and control method thereof
CN111730840A (en) * 2020-06-30 2020-10-02 绍兴市同德管业有限公司 Plastic tubing production and processing equipment
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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