CN1817616A - Method for controlling film thickness automatically and weighing device thereof - Google Patents
Method for controlling film thickness automatically and weighing device thereof Download PDFInfo
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- CN1817616A CN1817616A CNA2006100658613A CN200610065861A CN1817616A CN 1817616 A CN1817616 A CN 1817616A CN A2006100658613 A CNA2006100658613 A CN A2006100658613A CN 200610065861 A CN200610065861 A CN 200610065861A CN 1817616 A CN1817616 A CN 1817616A
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- extruder
- quantitation tube
- charging aperture
- controller
- rotating speed
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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
- 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
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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
- B29C2948/92323—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
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
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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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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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
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
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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
- B29C2948/92676—Weight
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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
- B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
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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
- B29C2948/92857—Extrusion unit
- B29C2948/92866—Inlet shaft or slot, e.g. passive hopper; Injector, e.g. injector nozzle on barrel
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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
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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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
- B29C2948/92923—Calibration, after-treatment or cooling zone
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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
- B29C2948/92952—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
A method for automatically controlling the thickness of extruded film includes such steps as weighing the raw material, feeding it in extruder, detecting the beginning and terminating time when the raw material passes through a photosensitive sensor arranged at inlet of extruder, inputting the time signals to control computer, calculating the feeding speed, and regulating the rotation speed of extruding screw bolt or drawing roller.
Description
Technical field
The present invention relates to a kind of automatic meausring apparatus of controlling out the method for film thickness and implementing this method, can be used for multi-layer co-extruded extruder, inflation film manufacturing machine, casting films, sheet material, tubing, section bar, granulation, modified plastics, electric wire and cable jacket and extruding layer pressing production line.
Background technology
The extruder membrane control system of prior art needs the operator to operate, to the rotating speed of extruder be provided with keep film thickness evenly.Its shortcoming is the percent defective height, and is too high to technical staff's requirement, can not keep membrane even for a long time.
Summary of the invention
Purpose of the present invention just provides a kind of automatic meausring apparatus of controlling out the method for film thickness and implementing this method, and is too high to technical staff's requirement to solve the percent defective height that prior art exists, and can not keep the uniform problem of film thickness for a long time.
Technical scheme of the present invention is: at first measure charging rate, then according to the extruding screw of charging rate control extruder or the rotating speed of carry-over pinch rolls, the rotating speed of charging rate and described extruding screw is inversely proportional to, or be directly proportional with the rotating speed of carry-over pinch rolls, keep film thickness even, it is characterized in that: the method for described measurement charging rate is: adopt elevating hopper and the meausring apparatus with a constant volume, measure the weight that the quantitation tube raw material in this meausring apparatus is filled in one of weighing in advance, this weight is input in the controller; By described elevating hopper raw material is filled described quantitation tube then, and under the control of controller, raw material is poured into the charging aperture of extruder; Raw material that detection pours into the punishment in advance induction installation by the time span that this charging aperture continued is set in the charging aperture of extruder, and the time span signal that this punishment in advance induction installation records imported described controller, calculate charging rate with the weight of the raw material in the described meausring apparatus divided by described time span by this controller; Controller compares according to this charging rate and the velocity amplitude that presets again then, automatically adjust the rotating speed of described extruder extrusion screw rod or the rotating speed of carry-over pinch rolls by controller, if charging rate is higher than preset value, then reduces the rotating speed of extrusion screw rod automatically, or increase the rotating speed of carry-over pinch rolls automatically; If charging rate is lower than preset value, then increases the screw rod rotating speed of motor automatically, or reduce the rotating speed of carry-over pinch rolls automatically; Thereby reach the Mi Chong of automatic adjusting product, it is remained in certain scope.
The employed meausring apparatus of the described method of a kind of claim 1, it is characterized in that: comprise cylindrical quantitation tube, rotating shaft, rotating drive mechanism, and described controller and punishment in advance induction installation, the side face of quantitation tube is provided with charging aperture, the axle center of quantitation tube is provided with horizontal rotating shaft, the two ends rotational support of this rotating shaft is on frame, in this rotating shaft, be provided with described rotating drive mechanism, this rotating drive mechanism makes described rotating shaft back and forth rotate 180 degree under the control of described controller, and the charging aperture of quantitation tube side face is changed between two positions between up and down; Be provided with feed hopper and be connected with frame above described quantitation tube, the lower end of this feed hopper contacts with the slipper seal of described cylindrical shell side face; Described punishment in advance induction installation is installed in the charging aperture of extruder, is used for the employed time of overall process that the raw material in described quantitation tube of perception passes through charging aperture.
Described punishment in advance induction installation is a light sensor.
Described punishment in advance induction installation comprises turnover panel, contact-making switch and location-plate, shown in this turnover panel level places in the charging aperture of extruder, one end of turnover panel passes charging aperture and hinged with this charging aperture wall, the outer end of this turnover panel is provided with counterweight, be provided with location-plate below this counterweight turnover panel the inner can not be upwarped, on the outer end of this turnover panel, be provided with the pair of switches contact.
Discharge bucket is housed below described quantitation tube, and the lower end outlet of this discharge bucket is positioned at the top of the charging aperture of described extruder.
Described controller adopts microcomputer or Programmable Logic Controller.
Described rotating drive mechanism is made of cylinder or fluid cylinder, rack and pinion, and gear is installed in the rotating shaft of described quantitation tube, and with the tooth bar engagement, an end of tooth bar is connected with the piston rod of cylinder or fluid cylinder is coaxial, the cylinder body of cylinder or fluid cylinder is connected with frame.
Described rotating drive mechanism is made of stepper motor, and the output shaft of this stepper motor is connected with the rotating shaft of described quantitation tube is coaxial, or is in transmission connection by the rotating shaft of transmission mechanism and quantitation tube.
Advantage of the present invention is: the yield rate height, less demanding to the technical staff can keep film thickness even for a long time, saves artificial.
The invention will be further described below in conjunction with embodiment and accompanying drawing.
Description of drawings
Fig. 1 is that meausring apparatus of the present invention is applied in the general structure schematic diagram of (control extruding screw rotating speed) on the extruder;
Fig. 2 is that meausring apparatus of the present invention is applied in the general structure schematic diagram of (control carry-over pinch rolls rotating speed) on the extruder;
Fig. 3 is that the A of Fig. 1 is to cutaway view;
Fig. 4 is the vertical view of quantitation tube among Fig. 2;
Fig. 5 is another example structure schematic diagram of punishment in advance induction installation of the present invention.
The specific embodiment
Referring to Fig. 1～Fig. 3, the method that the present invention controls out film thickness is at first to measure charging rate, then according to the extruding screw (drive motors 12) of charging rate control extruder 11 or the rotating speed of carry-over pinch rolls 15 (drive motors), the rotating speed of charging rate and described extruding screw is inversely proportional to, or be directly proportional with the rotating speed of carry-over pinch rolls, keep film thickness even.The method of described measurement charging rate is: at first adopt the meausring apparatus raw materials weighing, and raw material is poured into the charging aperture 8 of extruder 11 under the control of controller C; Light sensor (reflection infrared sensor to or be made of transmitting tube and receiving tube) 10 is set in the bottom of the charging aperture 8 of extruder, and detect initial sum that the raw material of being poured into arrives this light sensor position end constantly (it's the used time of charging aperture are past the feed streams that promptly detect in the quantitation tube 6) by this light sensor 10, the signal in this moment is imported described controller C and is calculated this initial sum end of a period interval and charging rate constantly and (measures the weight that quantitation tube 6 raw materials in this meausring apparatus are filled in one of weighing in advance, this weight is input in the controller C, calculates charging rate with the weight of quantitation tube 6 raw materials in the described meausring apparatus divided by described initial sum time interval constantly of ending) by this controller C; Controller C adjusts the rotating speed of described extruder extrusion screw rod or the rotating speed of carry-over pinch rolls according to the length of this time at intervals more then.If charging rate is higher than preset value, then reduces the rotating speed of extrusion screw rod, or increase the rotating speed of carry-over pinch rolls; If charging rate is lower than preset value, then increases rotating speed of motor, or reduce the rotating speed of carry-over pinch rolls; Thereby reach the Mi Chong (every meter weight) of automatic adjusting product, it is remained in certain scope.
Comprise at the meausring apparatus shown in Fig. 1～Fig. 3: cylindrical quantitation tube 6, rotating shaft 5, by cylinder, the rotating drive mechanism that rack-and-pinion is formed, and described controller C and optical sensor 10, the side face of quantitation tube 6 is provided with a charging (discharging) mouth 61, the axle center of quantitation tube 6 is provided with horizontally disposed rotating shaft 5, the two ends rotational support of this rotating shaft 5 is on frame 16, in this rotating shaft 5, be equipped with gear 4 and with the tooth bar 3 of its engagement, tooth bar 3 is installed in the gathering sill (not shown), one end of tooth bar 3 is connected with the piston rod of cylinder 2, and the cylinder body of cylinder 2 is connected on frame or the feed hopper 1.The gas circuit of cylinder 2 can so that described rotating shaft 5 and quantitation tube 6 back and forth rotate 180 degree, change the charging aperture 61 of quantitation tube 6 side faces, so that reinforced and discharging by the control of the controlled device C of electrically-controlled valve between two positions between up and down; Be provided with feed hopper 1 and be connected with frame 16 above described quantitation tube 6, the lower end of this feed hopper contacts with the slipper seal of described cylindrical shell side face.
Also discharge bucket 7 can be housed below described quantitation tube 6, the lower end outlet of this discharge bucket 7 is positioned at the top of the charging aperture 8 of described extruder.
Described controller C adopts microcomputer or Programmable Logic Controller, belongs to routine techniques.The input of controller C is connected with optical sensor 10, the motor 12 that two outputs and rotating drive mechanism (i.e. the gas circuit electrically-controlled valve of the cylinder 2 of this embodiment) and extruder 11 are arranged in addition perhaps is connected with the drive unit of rotating drive mechanism (i.e. the gas circuit electrically-controlled valve of the cylinder 2 of this embodiment) with the carry-over pinch rolls 15 of extruder 11 outlet outsides.
Fig. 4 is another example structure schematic diagram of punishment in advance induction installation of the present invention, described punishment in advance induction installation comprises turnover panel 17, contact-making switch 18 and location-plate 20, shown in these turnover panel 17 levels place in the charging aperture 8 of extruder, one end of turnover panel 17 passes charging aperture 8 and hinged with the wall of this charging aperture 8 by articulated axle 19, the outer end of this turnover panel 17 is provided with counterweight, be provided with location-plate 20 below this counterweight turnover panel the inner can not be upwarped, on the outer end of this turnover panel 17, be provided with pair of switches contact 18.Turnover panel 17 is keeping the basic horizontal state under the effect of counterweight and under the support of location-plate, when retaining has raw material to pass through, turnover panel 17 in the charging aperture is swung downwards, and the outer end of turnover panel 17 upward deflects with top switch contact 18 and contacts conducting, and this Continuity signal is delivered to controller C.After the raw material of certain graduated cylinder 6 passed through, turnover panel 17 resetted, and switch contact 18 disconnects, and controller has write down the time span that raw material passes through, and then calculates charging rate, i.e. the raw material that flows through in the unit interval.
The course of work of the present invention is (embodiment with Fig. 1 is an example):
The original state of system is to fill raw material in feed hopper 1, the charging aperture 61 of quantitation tube 6 up and fill raw material, charging feedstock is above optical sensor 10 in the charging aperture 8 of extruder 11.
After extruder unlatching work, raw material in extruder charging aperture 8 drops to a moment that is lower than optical sensor 10 places, the optical routing of optical sensor 10 is blocked by raw material and changes printing opacity into, initial signal of telecommunication of optical sensor 10 outputs (also can think the end of a period moment of last raw material), control cylinder 2 moved after controller C obtained this signal, make quantitation tube 6 rotate 180 degree, the raw material in the quantitation tube 6 is poured in the feed hopper 8 of extruder
Along with remaining in operation of extruder, raw material in the feed hopper 8 continues to descend, drop to a moment that is lower than optical sensor 10 places when raw material, the optical routing of optical sensor 10 is blocked by raw material and changes printing opacity into, optical sensor 10 output end of a period signals of telecommunication (also being the initial moment of next control procedure), controller C calculate this initial sum end of a period interval and charging rate constantly; Controller C adjusts the rotating speed of described extruder extrusion screw rod (motor 12) or the rotating speed of carry-over pinch rolls 15 according to the length of this time at intervals more then.If charging rate is higher than preset value, then reduces the rotating speed of motor 12 automatically, or increase the rotating speed of carry-over pinch rolls 15 automatically; If charging rate is lower than preset value, then increases the rotating speed of motor 12 automatically, or reduce the rotating speed of carry-over pinch rolls 15 automatically.Reach and adjust film thickness automatically, make its uniform purpose.
Claims (8)
1, a kind of automatic control extruder goes out the method for film thickness, at first measure charging rate, then according to the extruding screw of charging rate control extruder or the rotating speed of carry-over pinch rolls, the rotating speed of charging rate and described extruding screw is inversely proportional to, or be directly proportional with the rotating speed of carry-over pinch rolls, keep film thickness even, it is characterized in that: the method for described measurement charging rate is: adopt elevating hopper and the meausring apparatus with a constant volume, measure the weight that the quantitation tube raw material in this meausring apparatus is filled in one of weighing in advance, this weight is input in the controller; By described elevating hopper raw material is filled described quantitation tube then, and under the control of controller, raw material is poured into the charging aperture of extruder; Raw material that detection pours into the punishment in advance induction installation by the time span that this charging aperture continued is set in the charging aperture of extruder, and the time span signal that this punishment in advance induction installation records imported described controller, calculate charging rate with the weight of the raw material in the described meausring apparatus divided by described time span by this controller; Controller compares according to this charging rate and the velocity amplitude that presets again then, automatically adjust the rotating speed of described extruder extrusion screw rod or the rotating speed of carry-over pinch rolls by controller, if charging rate is higher than preset value, then reduces the rotating speed of extrusion screw rod automatically, or increase the rotating speed of carry-over pinch rolls automatically; If charging rate is lower than preset value, then increases the screw rod rotating speed of motor automatically, or reduce the rotating speed of carry-over pinch rolls automatically; Thereby reach the Mi Chong of automatic adjusting product, it is remained in certain scope.
2, the employed meausring apparatus of the described method of a kind of claim 1, it is characterized in that: comprise cylindrical quantitation tube, rotating shaft, rotating drive mechanism, and described controller and punishment in advance induction installation, the side face of quantitation tube is provided with charging aperture, the axle center of quantitation tube is provided with horizontal rotating shaft, the two ends rotational support of this rotating shaft is on frame, in this rotating shaft, be provided with described rotating drive mechanism, this rotating drive mechanism makes described rotating shaft back and forth rotate 180 degree under the control of described controller, and the charging aperture of quantitation tube side face is changed between two positions between up and down; Be provided with feed hopper and be connected with frame above described quantitation tube, the lower end of this feed hopper contacts with the slipper seal of described cylindrical shell side face; Described punishment in advance induction installation is installed in the charging aperture of extruder, is used for the employed time of overall process that the raw material in described quantitation tube of perception passes through charging aperture.
3, meausring apparatus according to claim 2 is characterized in that: described punishment in advance induction installation is a light sensor.
4, meausring apparatus according to claim 2, it is characterized in that: described punishment in advance induction installation comprises turnover panel, contact-making switch and location-plate, shown in this turnover panel level places in the charging aperture of extruder, one end of turnover panel passes charging aperture and hinged with this charging aperture wall, the outer end of this turnover panel is provided with counterweight, be provided with location-plate below this counterweight turnover panel the inner can not be upwarped, on the outer end of this turnover panel, be provided with the pair of switches contact.
5, meausring apparatus according to claim 2 is characterized in that: discharge bucket is housed below described quantitation tube, and the lower end outlet of this discharge bucket is positioned at the top of the charging aperture of described extruder.
6, meausring apparatus according to claim 2 is characterized in that: described controller adopts microcomputer or Programmable Logic Controller.
7, meausring apparatus according to claim 2, it is characterized in that: described rotating drive mechanism is made of cylinder or fluid cylinder, rack and pinion, gear is installed in the rotating shaft of described quantitation tube, and mesh with tooth bar, one end of tooth bar is connected with the piston rod of cylinder or fluid cylinder is coaxial, and the cylinder body of cylinder or fluid cylinder is connected with frame.
8, meausring apparatus according to claim 2, it is characterized in that: described rotating drive mechanism is made of stepper motor, the output shaft of this stepper motor is connected with the rotating shaft of described quantitation tube is coaxial, or is in transmission connection by the rotating shaft of transmission mechanism and quantitation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100658613A CN1817616A (en) | 2006-03-27 | 2006-03-27 | Method for controlling film thickness automatically and weighing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100658613A CN1817616A (en) | 2006-03-27 | 2006-03-27 | Method for controlling film thickness automatically and weighing device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1817616A true CN1817616A (en) | 2006-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100658613A Pending CN1817616A (en) | 2006-03-27 | 2006-03-27 | Method for controlling film thickness automatically and weighing device thereof |
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| CN (1) | CN1817616A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229237A (en) * | 2011-06-03 | 2011-11-02 | 王根乐 | Device for automatically controlling discharge weight per unit length of extruder |
| CN102285094A (en) * | 2011-06-03 | 2011-12-21 | 王根乐 | Device for automatically controlling extruder to discharge material uniformly |
| CN102366999A (en) * | 2011-08-26 | 2012-03-07 | 王根乐 | High precision automatic control device for weight per unit length of material discharged from extruder |
| CN102407599A (en) * | 2011-12-05 | 2012-04-11 | 王根乐 | High-precision method for controlling uniformity of discharging of extruder |
| CN102574307A (en) * | 2009-10-07 | 2012-07-11 | 金泉坤 | Rotor-type raw material supplier |
| CN101898412B (en) * | 2009-05-27 | 2014-12-03 | 上海松耐机械制造有限公司 | Extrusion control device of weight-loss type measuring control system |
| CN105459290A (en) * | 2015-12-18 | 2016-04-06 | 太仓权阡机械自动化有限公司 | Automatic feeding device for granulation |
| CN106067350A (en) * | 2015-04-22 | 2016-11-02 | 德尔福技术有限公司 | Extrusion press and method of operating thereof |
| CN106553330A (en) * | 2015-09-25 | 2017-04-05 | 广东金明精机股份有限公司 | Blown film production technology |
| CN107249869A (en) * | 2015-02-11 | 2017-10-13 | 约瑟夫·施德私人基金会 | Granulation device |
| CN108858795A (en) * | 2018-09-10 | 2018-11-23 | 广西大都混凝土集团有限公司 | A kind of concrete mixing plant of equal weight proportioning feeding |
| CN109176890A (en) * | 2018-09-10 | 2019-01-11 | 广西大都混凝土集团有限公司 | A kind of concrete mixing plant |
| CN109305564A (en) * | 2018-07-20 | 2019-02-05 | 北京林业大学 | A kind of continuous pneumatic conveying feed system of the pressure stabilizing-for biomass through pyrolysis |
| WO2021196302A1 (en) * | 2020-04-01 | 2021-10-07 | 南京美高美新材料有限公司 | Full-automatic quantitative feeding device for feeding extruder |
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2006
- 2006-03-27 CN CNA2006100658613A patent/CN1817616A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898412B (en) * | 2009-05-27 | 2014-12-03 | 上海松耐机械制造有限公司 | Extrusion control device of weight-loss type measuring control system |
| CN102574307B (en) * | 2009-10-07 | 2014-08-27 | 金泉坤 | Rotor-type raw material supplier |
| CN102574307A (en) * | 2009-10-07 | 2012-07-11 | 金泉坤 | Rotor-type raw material supplier |
| CN102285094A (en) * | 2011-06-03 | 2011-12-21 | 王根乐 | Device for automatically controlling extruder to discharge material uniformly |
| CN102229237A (en) * | 2011-06-03 | 2011-11-02 | 王根乐 | Device for automatically controlling discharge weight per unit length of extruder |
| CN102285094B (en) * | 2011-06-03 | 2013-08-07 | 王根乐 | Device for automatically controlling extruder to discharge material uniformly |
| CN102229237B (en) * | 2011-06-03 | 2013-08-07 | 王根乐 | Device for automatically controlling discharge weight per unit length of extruder |
| CN102366999A (en) * | 2011-08-26 | 2012-03-07 | 王根乐 | High precision automatic control device for weight per unit length of material discharged from extruder |
| CN102366999B (en) * | 2011-08-26 | 2013-10-23 | 王根乐 | High precision automatic control device for weight per unit length of material discharged from extruder |
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| CN109176890B (en) * | 2018-09-10 | 2023-11-10 | 广西大都混凝土集团有限公司 | Concrete mixing plant |
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