CN210617094U - Modified PTFE film forming device - Google Patents
Modified PTFE film forming device Download PDFInfo
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- CN210617094U CN210617094U CN201920852087.3U CN201920852087U CN210617094U CN 210617094 U CN210617094 U CN 210617094U CN 201920852087 U CN201920852087 U CN 201920852087U CN 210617094 U CN210617094 U CN 210617094U
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Abstract
The utility model discloses a modified PTFE film forming device, which comprises a rotary cutter, a first film thickness detector, a hot mill, a second film thickness detector and a film winder which are arranged in sequence; the first film thickness detector adopts a non-contact type online real-time detection method to detect the thickness of the rotary-cut PTFE film, and the second film thickness detector adopts a non-contact type online real-time detection method to detect the thickness of the hot-rolled PTFE film; the hot rolling mill is used for hot rolling the rotary-cut PTFE film to a set thickness to obtain the oriented PTFE film. The utility model relates to a modified PTFE film forming device is provided with peeler, the thick detector of first membrane, hot rolling mill, the thick detector of second membrane and film rolling machine on same production line, can improve production efficiency for it is little to connect extravagant proportion, and can in time adjust feed volume and hot rolling interval, makes the product thickness of production more even.
Description
Technical Field
The utility model belongs to the technical field of the film rotary-cut takes shape technique and specifically relates to a modified PTFE film forming device.
Background
PTFE has excellent comprehensive performance, high temperature resistance, corrosion resistance, non-sticking, self-lubricating property, excellent dielectric property and very low friction coefficient. However, they have poor creep resistance, a large coefficient of expansion, and a very irregular change with temperature, and thus, it is necessary to modify them to reduce the influence of their poor properties. As engineering plastics, PTFE can be made into pipes, rods, films and the like, wherein the films are most widely applied and are generally applied to parts which have higher performance requirements on corrosion resistance, high temperature resistance and self lubrication. As a thermoplastic polymer material, the melt flowability is poor, and the thermoplastic polymer material can only be prepared into a cylindrical blank by adopting a powder metallurgy mode, then the cylindrical blank is rotationally cut into a thin film, and then the oriented thin films with different properties are obtained by hot pressing. At present, the film is separated by rotary cutting and hot pressing, and although the separation has low requirements on equipment, the process time is long, the occupied space of the equipment is large, and the waste ratio of joints is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a modified PTFE film forming device for rotary-cut shaping and design hot pressing are located same production line, have improved production efficiency, and it is little to connect extravagant proportion. .
In order to solve the technical problem, the purpose of the utility model is to realize like this:
the utility model relates to a modified PTFE film forming device, which comprises a rotary cutter, a first film thickness detector, a hot mill, a second film thickness detector and a film winder which are arranged in sequence; the first film thickness detector adopts a non-contact type online real-time detection method to detect the thickness of the rotary-cut PTFE film, and the second film thickness detector adopts a non-contact type online real-time detection method to detect the thickness of the hot-rolled PTFE film; the hot rolling mill is used for hot rolling the rotary-cut PTFE film to a set thickness to obtain the oriented PTFE film.
On the basis of the above scheme and as a preferable scheme of the above scheme, the rotary cutting machine is a spindle-free rotary cutting machine.
In addition to and as a preferred embodiment of the above-mentioned aspects, the first film thickness detector and the second film thickness detector adopt a non-contact thin film detection system based on a DSP.
On the basis of the scheme, the hot rolling mill is provided with the calendering roller, and the lifting of the calendering roller is adjusted through the accurate distance adjusting mechanism.
On the basis of the above scheme and as a preferable scheme of the above scheme, the rotary cutter is provided with a servo motor for adjusting the feed amount of the rotary cut.
The utility model has the advantages that: the utility model relates to a modified PTFE film forming device is provided with peeler, the thick detector of first membrane, hot rolling mill, the thick detector of second membrane and film rolling machine on same production line, can improve production efficiency for it is little to connect extravagant proportion, and can in time adjust feed volume and hot rolling interval, makes the product thickness of production more even.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
fig. 2 is a schematic structural diagram of the precise distance adjusting mechanism.
The designations in the figures illustrate the following: 1-a rotary cutter; 11-a rotary cutter; 2-a first film thickness detector; 3-hot rolling; 31-wedges; 32-precision nuts; 33-a precision screw rod; 34-precision speed reducer; 35-a servo motor; 36-a hydraulic cylinder; 37-calendering rolls; 4-a second film thickness detector; 5-lap former; 6-PTFE cylindrical embryo; 7-PTFE film.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
This embodiment will be described in detail with reference to fig. 1 and 2. The embodiment relates to a modified PTFE film forming device, including peeler 1, first thick detector 2, hot rolling mill 3, the thick detector 4 of second membrane and the film rolling machine 5 that set gradually. The first film thickness detector 2 detects the thickness of the rotary-cut PTFE film 7 in real time in a non-contact manner on line. The second film thickness detector 4 detects the thickness of the hot-rolled PTFE film 7 in real time in a non-contact manner on line. The hot rolling mill 3 is used for hot rolling the peeled PTFE film 7 to a predetermined thickness to obtain an oriented PTFE film 7. The PTFE cylindrical blank 6 manufactured by adopting the powder metallurgy mode is placed on a rotary cutter 1, and the feed amount of a rotary cutter 11 is adjusted, so that the thickness of a PTFE film 7 obtained by rotary cutting by the rotary cutter 11 is a set value.
The PTFE film 7 obtained by rotary cutting passes through a first film thickness detector 2, a hot rolling mill 3 and a second film thickness detector 4 in sequence, and finally the PTFE film 7 is coiled on a coiling machine 5. The rotary cutting machine 1 used in this embodiment is a numerical control spindle-free rotary cutting machine, and the rotary cutting machine 1 is provided with a servo motor for adjusting the feed amount of the rotary cutting knife 11.
The first film thickness detector 2 and the second film thickness detector 4 used in this example detect the thickness of the PTFE film by a DSP-based noncontact thin film detection system.
The non-contact film thickness on-line detection system based on DSP is a film thickness on-line detection system which uses TMS320F2812(F2812) microprocessor chip of TI company to form a hardware circuit, uses ZS-L series 2D COMS laser type displacement sensor of ohm dragon as a detection device, uses a high-precision AD conversion chip AD976 as a core of a data acquisition module, and adopts a differential measurement mode on the design of a measurement frame and can accurately position a measurement range. TMS320F2812 System from Texas Instruments, Inc. (Texas Instruments, TI for short). The system chip not only has digital signal processing capability, but also has strong event management capability and embedded control function, and is particularly suitable for the requirements of the film thickness online detection system.
The film thickness signal detected by the non-contact film thickness on-line detection system based on the DSP is transmitted to the PLC, the PLC receives the digital signals of the first thickness gauge 2 and the second thickness gauge 4 and then compares the digital signals with reference values, an instruction is sent to a servo motor on the hot rolling mill 3, the servo motor drives a precise distance adjusting mechanism to complete the distance adjusting action of the hot rolling mill 3, and simultaneously an instruction is sent to the servo motor on the control rotary cutter 4 to adjust the feed amount of the rotary cutter, so that the thickness of the PTEF film 7 which is rotationally cut from the PTFE cylindrical blank 6 is adjusted.
The hot rolling mill 3 is provided with a rolling roller 37, and the thickness of the PTFE film 7 after hot rolling is adjusted by adjusting the lifting of the rolling roller 37 through a precise distance adjusting mechanism. Roll adjustment mechanism in hot rolling mill 3 includes voussoir 31, accurate lead screw 33, accurate reduction gear 34, hot rolling mill 3's calendering roller 37's bearing frame bottom has the inclination, the inclination of scalable voussoir 3 is corresponding, voussoir 31 links to each other with accurate lead screw 33, the other end of accurate lead screw 33 in proper order with accurate reduction gear 34, servo motor 35 links to each other, PLC control servo motor 35 rotation adjustment voussoir 31's flexible volume to adjust the lift of 37 sections of thick bamboo of calendering roller.
The utility model relates to a modified PTFE film forming device's working process as follows: the modified PTFE is made into a PTFE cylindrical embryo 6 by adopting a powder metallurgy mode, the PTFE cylindrical embryo 6 is placed in a rotary cutter 1, and the feed amount of a rotary cutter 11 is adjusted, so that the thickness of a rotary-cut PTFE film 7 is a set value. When the PTFE film 7 passes through the first film thickness detector 2, the first film thickness detector 2 detects the thickness of the PTFE film 7, feeds back a detected thickness signal to the PLC, compares the detected thickness signal with a reference value, and adjusts the feed amount of the rotary cutter 11 to increase the thickness of the PTFE film 7 if the detected thickness signal is smaller than the reference value; if the value is larger than the reference value, the feed amount of the rotary cutter 11 is adjusted to reduce the thickness of the PTFE film 7. The PTFE film 7 can form directional PTFE films 7 with different properties after passing through the hot rolling mill 3, the hot-rolled PTFE film 7 passes through the second film thickness detector 4, the second film thickness detector 4 detects the thickness of the PTFE film 7, thickness signals are sent to the PLC to be compared with reference values, and if the thickness signals are larger than the reference values, the precision distance adjusting mechanism is used for adjusting the descending of 37 cylinders of the calender rolls to reduce the thickness of the PTFE film 7 after hot rolling; if the value is smaller than the reference value, the thickness of the hot-rolled PTFE film 7 is increased by adjusting the rise of the rolling rolls 37 by a precise distance adjusting mechanism. Thereby enabling precise adjustment of the thickness of the PTFE membrane 7.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (5)
1. A modified PTFE film forming device is characterized by comprising a rotary cutter, a first film thickness detector, a hot rolling mill, a second film thickness detector and a film winder which are sequentially arranged; the first film thickness detector adopts a non-contact type online real-time detection method to detect the thickness of the rotary-cut PTFE film, and the second film thickness detector adopts a non-contact type online real-time detection method to detect the thickness of the hot-rolled PTFE film; the hot rolling mill is used for hot rolling the rotary-cut PTFE film to a set thickness to obtain the oriented PTFE film.
2. The apparatus for forming a modified PTFE membrane of claim 1, wherein said rotary cutter is a mandrel-less rotary cutter.
3. The apparatus for forming a modified PTFE film of claim 1, wherein the first and second film thickness detectors are DSP-based non-contact film detection systems.
4. The forming device of the modified PTFE film as described in claim 1, wherein the hot rolling mill is provided with a calendering roller, and the elevation of the calendering roller is adjusted by a precise distance adjusting mechanism.
5. The apparatus for forming a modified PTFE film according to claim 1, wherein a servo motor is provided on said rotary cutter for adjusting the feed amount of the rotary cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852087.3U CN210617094U (en) | 2019-06-06 | 2019-06-06 | Modified PTFE film forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920852087.3U CN210617094U (en) | 2019-06-06 | 2019-06-06 | Modified PTFE film forming device |
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| Publication Number | Publication Date |
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| CN210617094U true CN210617094U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920852087.3U Active CN210617094U (en) | 2019-06-06 | 2019-06-06 | Modified PTFE film forming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878780A (en) * | 2021-10-08 | 2022-01-04 | 常州福升新材料科技有限公司 | Polytetrafluoroethylene film calendering equipment |
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2019
- 2019-06-06 CN CN201920852087.3U patent/CN210617094U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878780A (en) * | 2021-10-08 | 2022-01-04 | 常州福升新材料科技有限公司 | Polytetrafluoroethylene film calendering equipment |
| CN113878780B (en) * | 2021-10-08 | 2024-01-26 | 常州福升新材料科技有限公司 | Polytetrafluoroethylene film calendering equipment |
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