CN202162994U - Pipe wall thickness uniformity control system - Google Patents
Pipe wall thickness uniformity control system Download PDFInfo
- Publication number
- CN202162994U CN202162994U CN2011201362410U CN201120136241U CN202162994U CN 202162994 U CN202162994 U CN 202162994U CN 2011201362410 U CN2011201362410 U CN 2011201362410U CN 201120136241 U CN201120136241 U CN 201120136241U CN 202162994 U CN202162994 U CN 202162994U
- Authority
- CN
- China
- Prior art keywords
- information
- wall thickness
- output control
- information processing
- thickness 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
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Classifications
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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
- B29C2948/92085—Velocity
- B29C2948/92095—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
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/9239—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
- B29C2948/92504—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
- B29C2948/92647—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
- B29C2948/92819—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a pipe wall thickness uniformity control system, which comprises an information acquisition portion, an information processing portion and an output control portion. The information acquisition portion consists of a weight acquisition unit, a screw rotation speed measuring unit and a traction speed measuring unit, the information acquisition portion is connected with the information processing portion, acquired information is inputted into the information processing portion, the information processing portion computes the inputted information, compares the inputted information with set original parameters, is connected with the output control portion and inputs results to the output control portion, and the output control portion is connected with a screw driving portion and a traction driving portion and controls screw rotation speed or traction speed according to the inputted results. By means of controlling constant 'squeezing quantity', the thickness of the wall of a pipe is uniform, accordingly, the weight of the pipe is guaranteed, simultaneously, materials can be saved, cost is controlled, and competitiveness is improved.
Description
Technical field
The utility model relates to a kind of control system, is specifically related to a kind of plastic pipe wall thickness uniformity control system.
Background technology
Control the uniformity of tube wall thickness, not only can control the quality of tubing, can also economical with materials.Prior art can be set a upper limit value and lower limit value to the wall thickness of tubing usually and produce for guaranteeing the service property (quality) of tubing, and such tubing of producing just inevitably can use more raw material, is unfavorable for the control of cost.At present; The extruding production line of plastic pipe, its extruder in occupation of core status, play a part very important to the product quality of producing in whole production line; Present control mode is mainly: through the given target velocity of driving screw drive speed adjustor; Screw rod rotates according to given speed then, thereby in the unit interval, extrudes the plastic cement of certain fusion, or title " extrusion capacity ".How to guarantee " extrusion capacity " constant in the unit interval, the uniformity of control tube wall thickness is had conclusive effect.But present this control mode can receive the influence of a lot of uncertainties, particularly because material material grain is not of uniform size, has influence on the stability of material inlet amount, thereby influences the constant of " extrusion capacity ", can't guarantee the quality of tubing.
Thereby, need a kind of control system that can control the tube wall thickness uniformity now badly.
The utility model content
The purpose of the utility model is to overcome above-mentioned shortcoming of the prior art, and a kind of control system that can control the tube wall thickness uniformity is provided.
A kind of tube wall thickness uniformity of the utility model is controlled system, comprises information gathering part, information processing part, output control part, it is characterized in that,
Said information gathering partly comprises Weight acquisition unit, screw speed measuring unit, hauling speed measuring unit, and the information gathering part partly is connected with information processing, with the information input information processing part of being gathered;
Said information processing part is calculated the information of input, and compares with the initial parameter of setting, and is connected with output control part, and the result is input to output control part;
Output control part partly is connected with screw drive part, traction drive, according to input results control screw speed or hauling speed.
In preferred embodiment of the utility model, said Weight acquisition unit comprises the gravitometer measuring device, is installed on extruder charging aperture upper end, measures inlet amount.
In preferred embodiment of the utility model, said screw speed measuring unit comprises near switch, is installed on extruder screw one end, measures screw speed.
In preferred embodiment of the utility model, said is photoelectric sensor switch near switch.
In preferred embodiment of the utility model, the hauling speed measuring unit comprises encoder, is installed on the extruder traction end, measures hauling speed.
In preferred embodiment of the utility model, said information treatment part branch comprises display.
The operation principle of the utility model; Existing according to the tubing specification setting initial data of being produced, after beginning to produce, the gravimetric machine that is installed on extruder charging aperture upper end begins the inlet amount of continuous measurement material; The encoder that begins to measure screw speed or be installed on the extruder traction end near switch that is installed on extruder screw one end simultaneously begins to measure hauling speed; And will record data and in time feed back to the information processing part, the information processing part is calculated the information of input, and compares with the initial parameter of setting; The result is input to output control part, and output control part is controlled screw speed or hauling speed according to input results.
The utility model is compared its advantage with the prior art scheme: constant through control " extrusion capacity ", and make the tube wall thickness degree even, thereby guaranteed the weight of tubing, simultaneously can economical with materials, controlled cost, improved competitiveness.
Description of drawings
Fig. 1 is a kind of example structure sketch map of the utility model;
Wherein, 1 is that information gathering part, 2 is that information processing part, 3 is an output control part.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
A kind of tube wall thickness uniformity of the utility model is controlled system; Comprise information gathering part 1, information processing part 2, output control part 3; Said information gathering part 1 comprises Weight acquisition unit, screw speed measuring unit, hauling speed measuring unit; Be the gravitometer measuring device, near switch and encoder, said gravitometer measuring device is installed on extruder charging aperture upper end, measures inlet amount; Saidly be installed on extruder screw one end, measure screw speed near switch; Encoder is installed on the extruder traction end, measures hauling speed; The information that information gathering part 1 is gathered is input to information processing part 2; Said information processing part 2 is calculated the information of input, and compares with the initial parameter of setting, and the result is input to output control part 3; Output control part 3 is controlled screw speed or hauling speed according to input results.
Preferably, said is photoelectric sensor switch near switch; Said information processing part can also comprise display, and the data instant playback of being gathered is come out; Said gravitometer measuring device adopts the mode of weight-loss type continuous measurement to measure inlet amount.
The utility model has two kinds of mode of operations, and a kind of is that pattern is extruded in control, and a kind of is the control traction mode.
The utility model is work like this:
Select mode of operation; If mode of operation is extruded in the control of selecting; Set initial data according to the tubing specification of being produced: the corresponding corresponding screw speed of inlet amount, after beginning simultaneously to produce, the gravimetric machine that is installed on extruder charging aperture upper end begins the inlet amount of continuous measurement material; What be installed on extruder screw one end simultaneously begins to measure screw speed near switch; And the data that obtain are in time fed back to the information processing part, the information processing part is calculated the information of input, and compares with the initial parameter of setting; The result is input to output control part, and output control part is controlled the increase or the minimizing of screw speed according to input results.
If what select is the mode of operation of control traction; Set initial data according to the tubing specification of being produced: the corresponding corresponding hauling speed of inlet amount, after beginning simultaneously to produce, the gravimetric machine that is installed on extruder charging aperture upper end begins the inlet amount of continuous measurement material; The encoder that is installed on the extruder traction end simultaneously begins to measure hauling speed; And the data that obtain are in time fed back to the information processing part, the information processing part is calculated the information of input, and compares with the initial parameter of setting; The result is input to output control part, and output control part is controlled the increase of hauling speed according to input results or is reduced.
The above; Be merely the specific embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the utility model disclosed, and variation or the replacement that can expect without creative work all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain that claims were limited.
Claims (6)
1. a tube wall thickness uniformity control system comprises information gathering part, information processing part, output control part, it is characterized in that,
Said information gathering partly comprises Weight acquisition unit, screw speed measuring unit, hauling speed measuring unit, and the information gathering part partly is connected with information processing, with the information input information processing part of being gathered;
Said information processing part is calculated the information of input, and compares with the initial parameter of setting, and is connected with output control part, and the result is input to output control part;
Output control part partly is connected with screw drive part, traction drive, according to input results control screw speed or hauling speed.
2. a kind of tube wall thickness uniformity according to claim 1 is controlled system, it is characterized in that said Weight acquisition unit comprises the gravitometer measuring device, is installed on extruder charging aperture upper end, measures inlet amount.
3. a kind of tube wall thickness uniformity according to claim 1 is controlled system, it is characterized in that said screw speed measuring unit comprises near switch, is installed on extruder screw one end, measures screw speed.
4. a kind of tube wall thickness uniformity according to claim 3 is controlled system, it is characterized in that said is photoelectric sensor switch near switch.
5. a kind of tube wall thickness uniformity according to claim 1 is controlled system, it is characterized in that the hauling speed measuring unit comprises encoder, is installed on the extruder traction end, measures hauling speed.
6. control system according to the described a kind of tube wall thickness uniformity of one of claim 1～5, it is characterized in that said information treatment part branch comprises display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201362410U CN202162994U (en) | 2011-05-03 | 2011-05-03 | Pipe wall thickness uniformity control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201362410U CN202162994U (en) | 2011-05-03 | 2011-05-03 | Pipe wall thickness uniformity control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162994U true CN202162994U (en) | 2012-03-14 |
Family
ID=45798845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201362410U Expired - Fee Related CN202162994U (en) | 2011-05-03 | 2011-05-03 | Pipe wall thickness uniformity control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162994U (en) |
-
2011
- 2011-05-03 CN CN2011201362410U patent/CN202162994U/en not_active Expired - Fee Related
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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: 20120314 Termination date: 20150503 |
|
| EXPY | Termination of patent right or utility model |