CN101462393A - Method for preparing overlay film plastic sheet - Google Patents
Method for preparing overlay film plastic sheet Download PDFInfo
- Publication number
- CN101462393A CN101462393A CNA2007103020030A CN200710302003A CN101462393A CN 101462393 A CN101462393 A CN 101462393A CN A2007103020030 A CNA2007103020030 A CN A2007103020030A CN 200710302003 A CN200710302003 A CN 200710302003A CN 101462393 A CN101462393 A CN 101462393A
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- film
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- overlay film
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for preparing a film-covered plastic sheet. The film-covered plastic sheet is prepared by a sheet extruder with a film-covering function; the sheet extruder comprises a hopper, an extrusion device, a die head, a sheet molding device and a winding device, and the sheet molding device comprises a three-roll calendering device for calendering sheets, a cooling transmission roll and a drawing roll; and the sheet molding device is provided with a film-covering device, the film-covering device comprises a frame body, the frame body is provided with a film unwinding shaft, a flattening roll for conveying flattened films is arranged between the three-roll calendering device and the die head, and at least one guide roll is arranged between the film unwinding shaft and the flattening roll. The method sends the films through the film-covering device into an original sheet inlet of the three-roll calendering device to ensure that the films and the sheets are calendered together by the three-roll calendering device to form the sheets with covering films, and the film covering is convenient and quick, and has reliable quality. An outer layer of the plastic sheet produced by the method is a covering film layer, and the method fully utilizes leftovers during the production and reduces the cost.
Description
Technical field
The present invention relates to a kind of convenience food packages preparation methods, specifically, relate to a kind of preparation method of overlay film plastic sheet.
Background technology
Along with the raising of people's living standard, the varieties of food items industry development of keeping abreast of the situation is satisfied the needs of people's fast pace life with food fast and easily, is exactly a kind of instant food that everybody likes as instant noodles.The packing box of instant food need be used a large amount of plastic sheets.And in order to strengthen the decoration result of the packing of product, designed pattern, trade mark and the description of product of various patterns at the packing box outer surface, with the propaganda strength that increases product with enlarge the marketing scope.
Can produce a large amount of leftover pieces in the production process of packing box, cause the waste of sheet material, according to statistics, the utilization rate of sheet material is the highest can to reach 55%, and other 45% material is a leftover bits and pieces just.How making full use of the leftover bits and pieces of existing sheet material, reduce the production cost of sheet material, is the problem that existing convenience food packages box manufacturing enterprise faces.
Existing convenience food packages box is composited by 25% skin, 50% intermediate layer and 25% internal layer with sheet material, and wherein 50% intermediate layer can be the leftover bits and pieces material.Thereby the most direct method that reduces the cost of sheet material is exactly the thickness that enlarges the intermediate layer.Because of the gross thickness of sheet material is certain, and internal layer is because of directly and Food Contact, and thickness can not reduce again, thereby the thickness that increases the intermediate layer just needs to reduce outer field thickness.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective that the plastic sheet outer layer thickness is thicker in the prior art, production cost is higher, a kind of preparation method of overlay film plastic sheet is provided, the plastic sheet skin that it is produced is the overlay film layer, greatly reduce outer field thickness, make intermediate layer thickness increase, made full use of the leftover bits and pieces in the production process, reduced cost.
For addressing the above problem, the present invention adopts following technical scheme:
The preparation method of a kind of overlay film plastic sheet of the present invention, described overlay film plastic sheet is equipped with by the extrusion sheet mechanism with overlay film function; Described extrusion sheet machine upstream extremity is two feed arrangements that are parallel to each other and extrusion device, die head of two common connections of extrusion device downstream, described die head downstream is sheet forming device and wrap-up, and the sheet forming device comprises that three roll-ins of calendered sheet prolong device, cooling delivery roll and carry-over pinch rolls; Installing one film covering device on the described sheet forming device, film covering device includes a support body, set up a film unreeling shaft on the support body, prolong in three roll-ins and set up the nip rolls that a conveying flattens film between device and the die head, and between film unreeling shaft and nip rolls, install at least one guide roller;
Two feed hoppers are respectively waste or used plastics feed hopper and new plastic feed hopper, press the weight ratio of 2-4:1, waste or used plastics and new plastic raw material are dropped into feed hopper respectively, through extrusion device and die head aftershaping is original sheet material, overlay film is positioned on the film unreeling shaft with film, through guide roller and nip rolls film is pulled to original sheet material and original sheet material and enters three roll-ins simultaneously and prolong device and roll into laminated sheet, behind cooling delivery roll and carry-over pinch rolls by the wrap-up rolling.
The support body of film covering device of the present invention and film unreeling shaft are set up in the cooling delivery roll top of sheet forming device, or three roll-ins prolong the device left side, or the device top is prolonged in three roll-ins.
Nip rolls of the present invention is the surperficial metallic roll that is carved with left hand thread groove and right-handed thread groove, or arc rubber rollers, or thin ends and thick middle pincushion rubber rollers.
The guide roller of film covering device of the present invention is equiped with pressure sensor.
Film unreeling shaft of the present invention is equiped with brake and bloated device of machine or inflatable device.
Waste or used plastics of the present invention is the leftover bits and pieces of sheet material.
The nip rolls of the present invention by film covering device sent into three roll-ins to film and prolonged above or below the original sheet material inlet of device, make film and sheet material together prolong the sheet material that the device calendering forms the tool overlay film through three roll-ins, convenient and swift, the reliable in quality of its overlay film, realized that an equipment finishes sheet material and coating technique simultaneously, reduced production cost, overlay film thickness can reach 25, has increased the consumption of sheet material leftover bits and pieces, greatly reduces the cost of sheet material.
Advantage of the present invention is as follows:
1, sheet surface overlay film during the present invention improves greatly reduces the sheet surface layer thickness, has improved intermediate layer thickness, has increased the consumption of sheet material leftover bits and pieces, has reduced the cost of sheet material.
2, the present invention finishes sheet material and coating technique simultaneously at an equipment, has reduced the equipment input, has reduced production cost.
3, coating technique of the present invention, convenient and swift, reliable in quality has improved production efficiency again, and the tool practicality.
Description of drawings
Fig. 1 is an example structure schematic diagram of the present utility model.
Fig. 2 is another example structure schematic diagram of the present utility model.
Fig. 3 is an another example structure schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, the preparation method of a kind of overlay film plastic sheet of the present invention, described overlay film plastic sheet is equipped with by the extrusion sheet mechanism with overlay film function; Described extrusion sheet machine upstream extremity is two feed arrangements that are parallel to each other 11 and extrusion device 12, die head 13 of two common connections of extrusion device downstream, described die head downstream is sheet forming device 20 and wrap-up 24, and the sheet forming device comprises that three roll-ins of calendered sheet prolong device 21, cooling delivery roll 22 and carry-over pinch rolls 23; Installing one film covering device 30 on the described sheet forming device, film covering device includes a support body 31, set up a film unreeling shaft 34 on the support body, prolong the nip rolls 33 that sets up a conveying flattening film between device and the die head in three roll-ins, and between film unreeling shaft and nip rolls, install at least one guide roller 32;
Two feed hoppers are respectively waste or used plastics feed hopper and new plastic feed hopper, press the weight ratio of 2-4:1, waste or used plastics and new plastic raw material are dropped into feed hopper respectively, through extrusion device and die head aftershaping is original sheet material 41, overlay film is positioned on the film unreeling shaft with film 42, through guide roller and nip rolls film is pulled to original sheet material and original sheet material and enters three roll-ins simultaneously and prolong device and roll into laminated sheet 40, behind cooling delivery roll and carry-over pinch rolls by the wrap-up rolling.
The support body 31 of described film covering device 30 and film unreeling shaft 34 can be set up in cooling delivery roll 22 tops (as shown in Figure 1) of sheet forming device 20, or three roll-ins prolong device 21 left sides (as shown in Figure 2), or device 21 tops (as shown in Figure 3) are prolonged in three roll-ins;
Described nip rolls 33 is the surperficial metallic roll that is carved with left hand thread groove and right-handed thread groove, or arc rubber rollers, or thin ends and thick middle pincushion rubber rollers (not shown);
The guide roller 32 of described film covering device 30 is equiped with the pressure sensor (not shown);
Described film unreeling shaft 34 is equiped with brake and bloated device of machine or inflatable device (not shown).
During use, nip rolls 33 by film covering device 30 is sent into three roll-ins to film 42 and is prolonged above or below original sheet material 41 inlets of device 21, make film 42 together prolong device 21 calenderings and form laminated sheet 40 through three roll-ins with original sheet material 41, convenient and swift, the reliable in quality of its overlay film, realized that an equipment finishes sheet material and coating technique simultaneously, reduce production cost, improved production efficiency, and the tool practicality.
The present invention is not limited to above-mentioned most preferred embodiment, and how unit or individual under enlightenment of the present invention, draw other any identical with the present invention or akin products, all drop within the protection domain of the present invention.
Claims (5)
1, a kind of preparation method of overlay film plastic sheet is characterized in that: described overlay film plastic sheet is equipped with by the extrusion sheet mechanism with overlay film function; Described extrusion sheet machine upstream extremity is two feed arrangements that are parallel to each other and extrusion device, die head of two common connections of extrusion device downstream, described die head downstream is sheet forming device and wrap-up, and the sheet forming device comprises that three roll-ins of calendered sheet prolong device, cooling delivery roll and carry-over pinch rolls; Installing one film covering device on the described sheet forming device, film covering device includes a support body, set up a film unreeling shaft on the support body, prolong in three roll-ins and set up the nip rolls that a conveying flattens film between device and the die head, and between film unreeling shaft and nip rolls, install at least one guide roller;
Two feed hoppers are respectively waste or used plastics feed hopper and new plastic feed hopper, press the weight ratio of 2-4:1, waste or used plastics and new plastic raw material are dropped into feed hopper respectively, through extrusion device and die head aftershaping is original sheet material, overlay film is positioned on the film unreeling shaft with film, through guide roller and nip rolls film is pulled to original sheet material and original sheet material and enters three roll-ins simultaneously and prolong device and roll into laminated sheet, behind cooling delivery roll and carry-over pinch rolls by the wrap-up rolling.
2, the preparation method of overlay film plastic sheet as claimed in claim 1 is characterized in that: the support body of described film covering device and film unreeling shaft are set up in the cooling delivery roll top of sheet forming device, or three roll-ins prolong the device left side, or the device top is prolonged in three roll-ins.
3, the preparation method of overlay film plastic sheet as claimed in claim 1 or 2 is characterized in that: described nip rolls is the surperficial metallic roll that is carved with left hand thread groove and right-handed thread groove, or arc rubber rollers, or thin ends and thick middle pincushion rubber rollers.
4, the preparation method of overlay film plastic sheet as claimed in claim 1 or 2 is characterized in that: the guide roller of described film covering device is equiped with pressure sensor.
5, the preparation method of overlay film plastic sheet according to claim 1 and 2 is characterized in that: described film unreeling shaft is equiped with brake and bloated device of machine or inflatable device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103020030A CN101462393A (en) | 2007-12-19 | 2007-12-19 | Method for preparing overlay film plastic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103020030A CN101462393A (en) | 2007-12-19 | 2007-12-19 | Method for preparing overlay film plastic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101462393A true CN101462393A (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103020030A Pending CN101462393A (en) | 2007-12-19 | 2007-12-19 | Method for preparing overlay film plastic sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101462393A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485480A (en) * | 2010-12-01 | 2012-06-06 | 海尔集团公司 | Color coating line film covering machine set and method for processing polyester film color plate through using color coating line film covering machine set |
| CN102529294A (en) * | 2012-01-19 | 2012-07-04 | 无锡市顺达物流涂装设备有限公司 | Production line of fireproofing composite board with metal surface |
| CN102806684A (en) * | 2012-09-04 | 2012-12-05 | 苏州工业园区维特力彩印包装有限公司 | Device used for placing and conveying multi-layer base paper |
| CN103129087A (en) * | 2013-02-28 | 2013-06-05 | 昆山中恒铝业有限公司 | Anti-stick film covering machine |
| CN108298359A (en) * | 2017-01-12 | 2018-07-20 | 上海东冠纸业有限公司 | A kind of green technology for making paper rewinding machine exhibition mechanism of paper |
| CN108790225A (en) * | 2018-06-27 | 2018-11-13 | 深圳市富益利实业有限公司 | A kind of preparation method and its production equipment of plastic cement decorated package |
| CN112677441A (en) * | 2020-12-30 | 2021-04-20 | 黄冈双健包装有限公司 | Film laminating device and film laminating process for plastic sheet machine |
| CN115648674A (en) * | 2022-10-24 | 2023-01-31 | 嘉善意德珑氟技术股份有限公司 | Circular cutting type PTFE film production equipment and process thereof |
-
2007
- 2007-12-19 CN CNA2007103020030A patent/CN101462393A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485480A (en) * | 2010-12-01 | 2012-06-06 | 海尔集团公司 | Color coating line film covering machine set and method for processing polyester film color plate through using color coating line film covering machine set |
| CN102485480B (en) * | 2010-12-01 | 2015-02-25 | 海尔集团公司 | Color coating line film covering machine set and method for processing polyester film color plate |
| CN102529294A (en) * | 2012-01-19 | 2012-07-04 | 无锡市顺达物流涂装设备有限公司 | Production line of fireproofing composite board with metal surface |
| CN102529294B (en) * | 2012-01-19 | 2015-06-17 | 无锡顺达智能自动化工程股份有限公司 | Production line of fireproofing composite board with metal surface |
| CN102806684A (en) * | 2012-09-04 | 2012-12-05 | 苏州工业园区维特力彩印包装有限公司 | Device used for placing and conveying multi-layer base paper |
| CN103129087A (en) * | 2013-02-28 | 2013-06-05 | 昆山中恒铝业有限公司 | Anti-stick film covering machine |
| CN108298359A (en) * | 2017-01-12 | 2018-07-20 | 上海东冠纸业有限公司 | A kind of green technology for making paper rewinding machine exhibition mechanism of paper |
| CN108790225A (en) * | 2018-06-27 | 2018-11-13 | 深圳市富益利实业有限公司 | A kind of preparation method and its production equipment of plastic cement decorated package |
| CN112677441A (en) * | 2020-12-30 | 2021-04-20 | 黄冈双健包装有限公司 | Film laminating device and film laminating process for plastic sheet machine |
| CN115648674A (en) * | 2022-10-24 | 2023-01-31 | 嘉善意德珑氟技术股份有限公司 | Circular cutting type PTFE film production equipment and process thereof |
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Open date: 20090624 |