Method and device for regulating the vacuum supply of calibration tools
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A tool and vacuum technology, which is applied in the field of adjusting the vacuum supply of calibration tools, can solve the problem of high energy consumption and achieve the effect of improving the quality of profiles
Inactive Publication Date: 2009-06-10
TECHNOPLAST KUNST GES
View PDF8 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
This results in the disadvantage that in most operating states of the vacuum pump a too strong vacuum is generated which must be reduced accordingly in order to reduce damage to the profile
[0004] Although it is possible to maintain the pressure inside the tool at the set pressure level using the method described, the energy consumption is relatively high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The extrusion line in the figure comprises an extruder 1 with an extrusion nozzle 2 for producing plastic profiles 3 . The plastic profile 3 is cooled and calibrated in the first dry calibration tool 4a. Downstream of the first dry calibration tool 4a, the next dry calibration tool 4b is arranged, and the calibration tank 5a with a plurality of light shields 6 is connected to the downstream side of the dry calibration tool 4b, and if necessary, flows to other calibration tanks , such as the next calibration slot 5b in the illustrated embodiment. The schematically depicted caterpillar vents 7 are used to provide the necessary tension on the profile 3 .
[0016] The dry calibration tools 4a, 4b are connected to the first condenser 9 via vacuum conduits 8a, 8b. In the same way, the calibration tanks 5a, 5b are connected to the second condenser 11 via vacuum conduits 10a, 10b. In this case, the condensers 9 , 11 are used to separate entrained coolant together with the dr...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a method for vacuum supply of a calibration tool (4a, 4b; 5a, 5b), comprising at least one dry calibration tool (4a, 4b) and at least one calibration tank (5a, 5b). According to the method described, at least one vacuum pump (17a, 17b, 17c, 17d) is required to be connected to the calibration tool (4a, 4b; 5a, 5b) in order to extract air from the calibration tool (4a, 4b; 5a, 5b), Adjust the pressure in the calibration tool (4a, 4b; 5a, 5b) to the nominal value through the regulating valve (13, 15). The purpose of the invention is to reduce energy consumption and improve the quality of produced profiles. In order to achieve this purpose, a plurality of vacuum pumps (17a, 17b, 17c, 17d) extract air from a common pressure vessel (16) and draw air from at least one dry in said common pressure vessel (16) through a first regulating valve (13). The calibration tool (4a, 4b) extracts air and, in addition, air is extracted from at least one calibration tank (5a, 5b) in the common pressure vessel (16) via a second regulating valve (15). Furthermore, the invention relates to a device for carrying out said method.
Description
technical field [0001] The present invention relates to a method of regulating the vacuum supply of a calibration tool, comprising at least one dry calibration tool and at least one calibration tank, in order to extract air from the calibration tool, at least one vacuum pump is required to be connected to the calibration tool, wherein the pressure inside the calibration tool is passed through The regulating valve is adjusted to the nominal value. Background technique [0002] In order to calibrate and cool the produced profiles, extrusion lines for plastic profiles usually comprise an extruder with an extrusion nozzle to which a calibration tool is connected. A so-called dry calibration tool is usually installed directly downstream of the extrusion nozzle, usually a water-cooled metal block is profiled to match the calibration tool opening, which is connected to the side vacuum slot. The vacuum slot is connected with the vacuum pump. In order to make the profile press the w...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more