CN202293295U - Device for automatically controlling length uniformity of materials discharged by extruder - Google Patents

Device for automatically controlling length uniformity of materials discharged by extruder Download PDF

Info

Publication number
CN202293295U
CN202293295U CN2011203147207U CN201120314720U CN202293295U CN 202293295 U CN202293295 U CN 202293295U CN 2011203147207 U CN2011203147207 U CN 2011203147207U CN 201120314720 U CN201120314720 U CN 201120314720U CN 202293295 U CN202293295 U CN 202293295U
Authority
CN
China
Prior art keywords
extruder
controller
automatically controlling
materials discharged
length uniformity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203147207U
Other languages
Chinese (zh)
Inventor
王根乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN2011203147207U priority Critical patent/CN202293295U/en
Application granted granted Critical
Publication of CN202293295U publication Critical patent/CN202293295U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • B29C2948/9218—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
    • B29C2948/92504—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
    • B29C2948/92609—Dimensions
    • B29C2948/92638—Length
    • 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
    • B29C2948/92923—Calibration, after-treatment or cooling zone

Landscapes

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

Abstract

The utility model discloses a device for automatically controlling the length uniformity of materials discharged by an extruder. The device comprises a controller, a raw material bucket, and a weighing device; the outlet of the raw material bucket is connected with the inlet of the weighing device through a valve; and the input end and the output end of the controller are connected with the weight signal output end of the weighing device, and a drive device of the valve respectively. The device for automatically controlling the length uniformity of materials discharged by the extruder is characterized in that: the other output end of the controller is connected with a drive motor of traction rollers through a frequency converter. The device for automatically controlling the length uniformity of materials discharged by the extruder has the advantages that: the controller directly controls the rotation speed of the drive motor of the traction rollers by the frequency converter, so the errors produced by sliding in a process of measuring the product length by a meter counter are overcome, and control accuracy can be improved. The meter counter is eliminated, the structure is simplified, manufacturing cost is reduced, a control principle is simple, the device is easy to maintain and debug, and failure rate is reduced greatly.

Description

Automatically control the inhomogeneity device of extruder discharging length
Technical field
The utility model relates to the inhomogeneity device of a kind of automatic control extruder discharging length, is mainly used on inflation film manufacturing machine, drawbench, electric wire machine, plastics wrapping machine and spray silk (bar) machine the length of discharging, the uniformity of thickness are controlled.
Background technology
Prior art adopts electronic scale to measure charging rate (the feed weight W/T in the unit interval); Control the rotating speed of extruder carry-over pinch rolls then according to charging rate; And the discharging length in employing speed probe (being commonly called as meter counter) measurement unit's time; According to the discharging length in this unit interval, charging rate is directly proportional with the rotating speed of carry-over pinch rolls, even to keep film thickness.Its shortcoming is to slide owing to the reason of assembling or wear and tear possibly cause producing between meter counter and the discharging, causes the unit interval discharging length of measurement error to occur, and complex structure, and cost is high, is difficult for maintenance and debugging.
Summary of the invention
The purpose of the utility model just provides the inhomogeneity device of a kind of automatic control extruder discharging length, and the measured unit interval discharging length that exists with the solution prior art has error, complex structure, and cost is high, is difficult for the problem of maintenance and debugging.
The technical scheme of the utility model is: the inhomogeneity device of a kind of automatic control extruder discharging length; Comprise controller, former hopper and meausring apparatus; The outlet of former hopper is connected with the inlet of meausring apparatus through gate; The input of this controller is connected with the weight signal output of meausring apparatus and the drive unit of gate respectively with an output, it is characterized in that: another output of described controller is connected with the drive motors of carry-over pinch rolls through frequency converter.
The drive unit of said gate adopts fluid cylinder, cylinder or electric device.
Described controller adopts microcomputer or Programmable Logic Controller.
The output of described controller and extruder the drive motors of extruding screw be connected.
The utility model has the advantages that: utilize controller directly to pass through the rotating speed of the drive motors of Frequency Converter Control carry-over pinch rolls, overcome meter counter measurement products length because the error of sliding and producing can improve control accuracy.And saved meter counter, simplified the structure, reduced manufacturing cost, control principle is simple, easy maintenance and debugging, and fault rate greatly reduces.
Description of drawings
Fig. 1 is the general structure sketch map that the utility model is applied in the embodiment on the extruder.
The specific embodiment
Referring to Fig. 1; The embodiment of the inhomogeneity device of a kind of automatic control extruder discharging length of the utility model; Comprise controller 9, former hopper 1 and meausring apparatus (electronic scale) 3; The outlet of former hopper 1 lower end is connected with the inlet of following meausring apparatus 3 through gate 2, and the input of this controller 9 is connected with the weight signal output of meausring apparatus 3 and the drive unit of gate 2 respectively with an output.Another output of described controller 9 is connected with the drive motors of carry-over pinch rolls 7 through frequency converter 8.
The drive unit of said gate 2 adopts fluid cylinder or cylinder, also can adopt electric device, moves as adopting motor to drive gate 3 through toggle.
Described controller 9 adopts microcomputer (single-chip microcomputer) or Programmable Logic Controller.
The utility model is connected the lower end outlet of meausring apparatus 3 when using with the charging aperture 4 of extruder 5.
The operation principle of the utility model is; Controller 9 directly obtains the frequency signal of frequency converter 8 outputs; The rotating speed of the drive motors of carry-over pinch rolls 7 is adjusted and calculated to frequency signal thus; Go out the rotating speed of carry-over pinch rolls 7 again according to the speed ratio calculation of the drive motors of carry-over pinch rolls 7 and carry-over pinch rolls 7, the girth that multiply by carry-over pinch rolls 7 by the rotating speed of these carry-over pinch rolls 7 can obtain the per second length of extruded product.The rotating speed of the drive motors through frequency converter 8 control carry-over pinch rolls 7 has overcome meter counter measurement products length in the prior art because the error of factors such as slips generation can improve control accuracy.
The maximum characteristics of the utility model are to have saved meter counter of the prior art, simplify the structure, and have reduced manufacturing cost, and control principle is simple, easy maintenance and debugging, and fault rate greatly reduces.
The output of described controller 9 and extruder the drive motors 6 of extruding screw be connected, through the rotating speed control and regulation evenness of discharge property of control drive motors 6.
The utility model also can be used for the application form of multimachine co-extrusion, and (many extruders are from an extrusion discharging; Shared one group of carry-over pinch rolls); Every extruder uses the control device of a cover the utility model separately; The rotating speed of the mean value control carry-over pinch rolls 7 of the W/T data of gathering with every extruder, control principle is identical with above-mentioned single machine.

Claims (4)

1. control the inhomogeneity device of extruder discharging length automatically for one kind; Comprise controller, former hopper and meausring apparatus; The outlet of former hopper is connected with the inlet of meausring apparatus through gate; The input of this controller is connected with the weight signal output of meausring apparatus and the drive unit of gate respectively with an output, it is characterized in that: another output of described controller is connected with the drive motors of carry-over pinch rolls through frequency converter.
2. the inhomogeneity device of automatic control extruder discharging length according to claim 1 is characterized in that: the drive unit of said gate adopts fluid cylinder, cylinder or electric device.
3. the inhomogeneity device of automatic control extruder discharging length according to claim 1 is characterized in that: described controller adopts microcomputer or Programmable Logic Controller.
4. the inhomogeneity device of automatic control extruder discharging length according to claim 1, it is characterized in that: the output of described controller is connected with the drive motors of the extruding screw of extruder.
CN2011203147207U 2011-08-26 2011-08-26 Device for automatically controlling length uniformity of materials discharged by extruder Expired - Fee Related CN202293295U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203147207U CN202293295U (en) 2011-08-26 2011-08-26 Device for automatically controlling length uniformity of materials discharged by extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203147207U CN202293295U (en) 2011-08-26 2011-08-26 Device for automatically controlling length uniformity of materials discharged by extruder

Publications (1)

Publication Number Publication Date
CN202293295U true CN202293295U (en) 2012-07-04

Family

ID=46362265

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203147207U Expired - Fee Related CN202293295U (en) 2011-08-26 2011-08-26 Device for automatically controlling length uniformity of materials discharged by extruder

Country Status (1)

Country Link
CN (1) CN202293295U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106239867A (en) * 2016-08-31 2016-12-21 瑞安市泓博塑业有限公司 A kind of inflation film manufacturing machine of the controlled feeding of processing film device-specific

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106239867A (en) * 2016-08-31 2016-12-21 瑞安市泓博塑业有限公司 A kind of inflation film manufacturing machine of the controlled feeding of processing film device-specific

Similar Documents

Publication Publication Date Title
CN102389742B (en) High-precision dispensing equipment and control method thereof
JP7429699B2 (en) Calibration method for liquid flow meters
CN104047845B (en) Gear pump life-span prediction method and rubber extruding device
CN102390757B (en) Hose winding machine
CN102285093B (en) Use of device for automatically controlling extruder to discharge material uniformly
CN102366999B (en) High precision automatic control device for weight per unit length of material discharged from extruder
CN102248659A (en) Extrusion constant-pressure control system for parallel double-screw extruding machine
CN208878956U (en) A kind of glue feeder of multicomponent glue and spot gluing equipment with it
CN105818386A (en) Desktop type 3D printer broken wire detection and alarm device
CN202293295U (en) Device for automatically controlling length uniformity of materials discharged by extruder
CN101898412B (en) Extrusion control device of weight-loss type measuring control system
CN102407599A (en) High-precision method for controlling uniformity of discharging of extruder
CN102229237B (en) Device for automatically controlling discharge weight per unit length of extruder
CN103950174A (en) Weighing and charging device of plastic extruder
CN202079767U (en) Control device for weight per unit discharge length of automatic control extruder
CN201955286U (en) Multi-tube type capillary rheometer
CN202079766U (en) Device for automatically controlling discharge weight per unit length of extruder
CN201552688U (en) Powder measuring and conveying device
CN202106537U (en) Device for automatically controlling length and weight of extruder discharging unit
CN106273322A (en) PVC compound flexibility ratio feeding system and control method thereof
CN202079769U (en) Device for automatically controlling extruder to uniformly discharge
CN207287340U (en) A kind of feeding system for further improving chemical industry slurry consecutive production charge ratio precision
CN102192775A (en) Powder particle metering machine capable of accurately metering
CN202079768U (en) Device for automatically controlling uniform discharging of extruding machine
CN106248525A (en) The flow measurement device of a kind of accurate flow control and measuring method

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20140826

EXPY Termination of patent right or utility model