CN103950204A - Production device of BOPP (Biaxially-Oriented Polypropylene) film - Google Patents
Production device of BOPP (Biaxially-Oriented Polypropylene) film Download PDFInfo
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- CN103950204A CN103950204A CN201410205477.3A CN201410205477A CN103950204A CN 103950204 A CN103950204 A CN 103950204A CN 201410205477 A CN201410205477 A CN 201410205477A CN 103950204 A CN103950204 A CN 103950204A
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Abstract
The invention discloses a production device of a BOPP (Biaxially-Oriented Polypropylene) film. The production device comprises an extruding device, a T-shaped machine head, a cooling roll, a preheating roll, a longitudinal drawing roll, a transverse drawing preheating region, a transverse drawing region and a coiling machine which are sequentially arranged successively according to a process, wherein the extruding device comprises two single-screw extruding machines which are serially matched. According to the production device, the technical problem that a material in the extruding device in a production process of the BOPP film is fully plasticized, mixed and homogenized is solved, the stability and the melt quality when the material is extruded are effectively improved, and phenomena such as excessive decomposition of melt, bubbles entrained in the melt, no material in the melt or/and coking in the melt are prevented.
Description
Technical field
The present invention relates to a kind of process units of BOPP film, particularly a kind of BOPP film production device.
Background technology
The polypropylene packaging films that use at present etc., except casting films, are the stretch orientation film obtaining with distinct methods.The production method of this film has biaxial tension method, blowing vacuolar membrane and simple tension method etc., wherein again with by biaxial tension legal system the use of biaxial tension BOPP film the most extensive.The concrete production procedure of biaxial tension BOPP film is: raw material through super-dry → extrude → slab → longitudinal stretching horizontal → to stretching, heat treatment → rolling, in expressing technique in wherein above-mentioned because existing extrusion device is all to adopt a single screw extrusion machine or double screw extruder, make the plasticization temperature of material be difficult to control, frequently occur that material does not fully melt or burnt material phenomenon, have a strong impact on the end product quality of biaxial tension BOPP film.
Summary of the invention
The object of the invention is provides a kind of polypropylene material in extrusion, can access a kind of BOPP film production device of abundant plasticizing, mixing and homogenising in order to solve the deficiency of above-mentioned technology.
In order to achieve the above object, a kind of BOPP film production device that the present invention is designed, comprise the extrusion device being successively arranged in order by technological process, T-shaped head, chill roll, preheat roll, longitudinal stretching roller, cross directional stretch preheating zone, cross directional stretch district and coiling machine, the extrusion device in above-mentioned is two single screw extrusion machines that series connection coordinates.
Single screw extrusion machine in above-mentioned is fully utilized in injection molding technology field, is a kind of existing conventional equipment, has the advantages such as power consumption is low, the processing free degree is large, screw rod wearing and tearing are little.By the cooperating of connecting of two single screw extrusion machines in above-mentioned, its concrete series system is also fairly simple, only the discharging opening of last single screw extrusion machine need to be sealedly connected on the charging aperture of a rear single screw extrusion machine.
As further improvement, above-mentioned in respect to the center vertical line of chill roll, described T-shaped head discharging angle α is 30 ° ~ 60 °, preferably 45 °.Above-mentioned preferred version can be realized the lip that polypropylene material melt seldom adheres to T-shaped head, the object of uniform discharge.
The internal stress producing in drawing process in order to eliminate polypropylene fibre, makes large molecule that to a certain degree lax occur, and realizes shape fixed-type, between the cross directional stretch district in above-mentioned and wind-up roll, is provided with heat set zone.
A kind of BOPP film production device provided by the present invention, in its structure, extrusion device adopts two single screw extrusion machines of connecting, material enters second extruder in semi-molten state after the plasticizing of First extruder, therefore the second level is extruded and can be adopted lower temperature, this has improved stability and melt quality when polypropylene material is extruded effectively, avoid occurring carrying bubble secretly in the undue decomposition of melt and melt, material is not or/and phenomenons such as burnt material, and the extruder of two series connection can strengthen extrusion capacity, can also carry out secondary exhaust simultaneously, be conducive to discharge the gas in melt.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 a kind of BOPP film production device that provides;
Fig. 2 is the structural representation at the embodiment 2 T-shaped head discharging angle in a kind of BOPP film production device that provides;
Fig. 3 is the structural representation of embodiment 3 a kind of BOPP film production device that provides.
Wherein: extrusion device 1, single screw extrusion machine 1-1, T-shaped head 2, chill roll 3, preheat roll 4, longitudinal stretching roller 5, cross directional stretch preheating zone 6, cross directional stretch district 7, heat set zone 8, coiling machine 9.
The specific embodiment
Below by embodiment, the invention will be further described by reference to the accompanying drawings.
Embodiment 1:
As shown in Figure 1, a kind of BOPP film production device providing in the present embodiment, comprise the extrusion device 1, T-shaped head 2, chill roll 3, preheat roll 4, longitudinal stretching roller 5, cross directional stretch preheating zone 6, cross directional stretch district 7 and the coiling machine 9 that by technological process, are successively arranged in order, the extrusion device 1 in above-mentioned is two single screw extrusion machine 1-1 that series connection coordinates.
Embodiment 2:
A kind of BOPP film production device providing in the present embodiment, its general structure is consistent with embodiment 1, as shown in Figure 2, but the T-shaped head 2 in the present embodiment is with respect to the center vertical line of chill roll 3, its discharging angle α is 45 ℃, thereby realized the lip that polypropylene material melt seldom adheres to T-shaped head 2, the object of uniform discharge.
Certainly in concrete use, the discharging angle α of described T-shaped head 2 can be the arbitrary value between 30 ° ~ 60 °, such as 35 ° or 40 ° or be 50 °.
Embodiment 3
A kind of BOPP film production device providing in the present embodiment, its general structure is consistent with embodiment 2, but the internal stress producing in drawing process in order to eliminate polypropylene fibre, make large molecule that to a certain degree lax occur, realize shape fixed-type, as shown in Figure 3, a kind of BOPP film production device that the present embodiment provides, is provided with heat set zone 8 between its cross directional stretch district 7 and wind-up roll 9.
Claims (4)
1. a BOPP film production device, comprise extrusion device (1), T-shaped head (2), chill roll (3), preheat roll (4), longitudinal stretching roller (5), cross directional stretch preheating zone (6), cross directional stretch district (7) and coiling machine (9), it is characterized in that the extrusion device (1) in above-mentioned is two single screw extrusion machines (1-1) that series connection coordinates.
2. a kind of BOPP film production device according to claim 1, it is characterized in that above-mentioned in respect to the center vertical line of chill roll (3), the discharging angle α of described T-shaped head (2) is 30 ° ~ 60 °.
3. a kind of BOPP film production device according to claim 2, it is characterized in that above-mentioned in the discharging angle α of T-shaped head (2) be 45 °.
4. according to a kind of BOPP film production device described in any one in claims 1 to 3, it is characterized in that being provided with heat set zone (8) between cross directional stretch district (7) in above-mentioned and wind-up roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205477.3A CN103950204A (en) | 2014-05-15 | 2014-05-15 | Production device of BOPP (Biaxially-Oriented Polypropylene) film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205477.3A CN103950204A (en) | 2014-05-15 | 2014-05-15 | Production device of BOPP (Biaxially-Oriented Polypropylene) film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103950204A true CN103950204A (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410205477.3A Pending CN103950204A (en) | 2014-05-15 | 2014-05-15 | Production device of BOPP (Biaxially-Oriented Polypropylene) film |
Country Status (1)
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| CN (1) | CN103950204A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401010A (en) * | 2014-11-28 | 2015-03-11 | 桐城市福润包装材料有限公司 | Production process of plastic films |
| CN105690784A (en) * | 2016-01-28 | 2016-06-22 | 海宁长昆包装有限公司 | Manufacturing process for high-tension dual-plasticizing-formed BOPP thin film |
| CN106368204A (en) * | 2016-10-26 | 2017-02-01 | 宁波鸿环土工材料有限公司 | Production line and production process for woven geotechnical pipe bags |
| CN108840147A (en) * | 2018-06-19 | 2018-11-20 | 宁波鸿雁包装材料有限公司 | A kind of online pretensioning device of film |
| CN109177248A (en) * | 2018-08-20 | 2019-01-11 | 扬州市众和同盛包装材料有限公司 | A kind of preparation process of the anti-scratch mute film of BOPP |
| CN111283992A (en) * | 2019-12-27 | 2020-06-16 | 贵州金田新材料科技有限公司 | Transverse stretching device for BOPP film production |
| CN117841216A (en) * | 2024-03-04 | 2024-04-09 | 无锡凯顺塑膜制造有限公司 | Environment-friendly stretch-proofing industrial PE film production equipment |
-
2014
- 2014-05-15 CN CN201410205477.3A patent/CN103950204A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104401010A (en) * | 2014-11-28 | 2015-03-11 | 桐城市福润包装材料有限公司 | Production process of plastic films |
| CN105690784A (en) * | 2016-01-28 | 2016-06-22 | 海宁长昆包装有限公司 | Manufacturing process for high-tension dual-plasticizing-formed BOPP thin film |
| CN106368204A (en) * | 2016-10-26 | 2017-02-01 | 宁波鸿环土工材料有限公司 | Production line and production process for woven geotechnical pipe bags |
| CN106368204B (en) * | 2016-10-26 | 2018-06-22 | 宁波鸿环土工材料有限公司 | Weave the production line and its production technology of geotextile tube bag |
| CN108840147A (en) * | 2018-06-19 | 2018-11-20 | 宁波鸿雁包装材料有限公司 | A kind of online pretensioning device of film |
| CN108840147B (en) * | 2018-06-19 | 2023-07-11 | 宁波鸿雁包装材料有限公司 | Online prestretching equipment of film |
| CN109177248A (en) * | 2018-08-20 | 2019-01-11 | 扬州市众和同盛包装材料有限公司 | A kind of preparation process of the anti-scratch mute film of BOPP |
| CN111283992A (en) * | 2019-12-27 | 2020-06-16 | 贵州金田新材料科技有限公司 | Transverse stretching device for BOPP film production |
| CN111283992B (en) * | 2019-12-27 | 2022-03-25 | 贵州金田新材料科技有限公司 | Transverse stretching device for BOPP film production |
| CN117841216A (en) * | 2024-03-04 | 2024-04-09 | 无锡凯顺塑膜制造有限公司 | Environment-friendly stretch-proofing industrial PE film production equipment |
| CN117841216B (en) * | 2024-03-04 | 2024-05-28 | 无锡凯顺塑膜制造有限公司 | Environment-friendly stretch-proofing industrial PE film production equipment |
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Application publication date: 20140730 |
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| WD01 | Invention patent application deemed withdrawn after publication |