CN104058288A - Pre-soaking tow film-coating device and method for synchronously slitting release films - Google Patents
Pre-soaking tow film-coating device and method for synchronously slitting release films Download PDFInfo
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- CN104058288A CN104058288A CN201410236834.2A CN201410236834A CN104058288A CN 104058288 A CN104058288 A CN 104058288A CN 201410236834 A CN201410236834 A CN 201410236834A CN 104058288 A CN104058288 A CN 104058288A
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Abstract
The invention relates to a pre-soaking tow film-coating device and method for synchronously slitting release films, and belongs to the technical field of composite material automatic tow paving and shaping. The device mainly comprises a primary film-coating unit, a release film slitting unit and a secondary film-coating unit, wherein each film-coating unit mainly comprises a driving roller fixed on a wallboard, an air cylinder and a pressing roller connected with the air cylinder through a swing rod; the release film slitting unit mainly comprises a cutter rest fixed on a wallboard and a cutter shaft fixed on the cutter rest; a shim and cutter blades are fixed on the cutter shaft; the primary film-coating unit realizes the fitting of pre-soaking tows and wide release films; the release film slitting unit realizes the slitting of wide pre-soaking materials; the secondary film-coating unit realizes the further fitting of the pre-soaking tows and split release film narrow tapes. According to the invention, the splitting of the pre-soaking tows, the film-coating of pre-soaking tows, the splitting of release films, and the compound winding of the pre-soaking tows and the release films can be implemented synchronously, the procedures of independently splitting the release films and compound-winding the release films into cylinders are eliminated, the time is saved, and the efficiency is improved.
Description
Technical field
The present invention relates to composite material automatic fiber placement forming technique field, particularly a kind of preimpregnation tow film covering method and equipment of synchronously cutting release film.
Background technology
Automatic fiber placement forming technology, due to its high quality, high efficiency and adaptable feature, is widely used in the automation forming process of composite element in the fields such as aerospace.Automatic fiber placement forming technique is raw materials used is to be wound into cylinder, and width is the preimpregnation tow (fiber being aligned by uncured resin-dipping obtains) of 3.17mm, 6.35mm or 12.7mm.Because resin is still in uncured viscous state, so being wound in a process, need carry out overlay film processing to preimpregnation tow, prevent bonding between levels preimpregnation tow and cannot unwinding.Due in winding process, on preimpregnation tow original release film for buffer action (paper) easily and preimpregnation tow depart from, cannot ensure all standing of preimpregnation tow, thus need carry out overlay film again to preimpregnation tow, and overlay film width is generally the twice of preimpregnation tow width.
Overlay film release film used mostly is by cutting separately and makes at present.Can use release film length for improving single, release film generally also needs to be wound into cylinder.Therefore cut with after-combustion process and will spend the plenty of time at acquisition overlay film release film used, greatly reduce the preparation efficiency of automatic fiber placement preimpregnation tow, increased cost of manufacture.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned defect that how to overcome prior art, and a kind of preimpregnation tow film covering method of synchronously cutting release film is provided.It is characterized in that realizing the cutting of release film, release film and with pasting of preimpregnation tow be cut with prepreg, the after-combustion of preimpregnation tow synchronizes and carries out.
A preimpregnation tow equipment for coating film of synchronously cutting release film, is characterized in that: comprise release film unwinding unit, an overlay film unit, release film divides cut unit and secondary overlay film unit; Wherein release film unwinding unit comprises the unwinding shaft being installed on wallboard; Wherein an overlay film unit comprises the first drive roll and the first cylinder that are installed on wallboard, also comprises the first rubber roller being connected with the first cylinder by the first fork; Wherein release film point cut unit comprises rotatable tool rest, is fixed on the cutter shaft on rotatable tool rest, is fixed on edge bearing and the blade on cutter shaft by holding out against nut; Rotatable tool rest one end is arranged on wallboard, and the other end has handle; Wherein secondary overlay film unit comprises the second drive roll and the second cylinder that are installed on wallboard, also comprises the second rubber roller being connected with the second cylinder by the second fork.
The film covering method of the described preimpregnation tow equipment for coating film of synchronously cutting release film, it is characterized in that comprising following process: the wide cut release film that step 1, preimpregnation silk and release film unwinding unit are emitted enters between the first drive roll and the first rubber roller in an overlay film unit, the first rubber roller clamps with the first drive roll under the effect of the first cylinder, completes overlay film for the first time; Step 2, utilize release film point cut unit to cut the wide cut release film that is affixed on preimpregnation silk surface, form arrowband; Step 3, release film arrowband and the corresponding preimpregnation silk of cutting gained enter in secondary overlay film unit between the second drive roll and the second rubber roller, the second rubber roller clamps with the second drive roll under the effect of the second cylinder, and the note of strengthening arrowband and preimpregnation silk covers effect.
Concrete, overlay film unit is by being fixed on the drive roll, cylinder of wallboard, the fork being connected with cylinder, with the rubber roller that is connected in fork, drive roll has two kinds of poses with rubber roller: compress and separate, drive roll separates with rubber rollers, be beneficial to and wear material, the two compresses is to provide onward impulse for preimpregnation tow and release film.
In overlay film of the present invention unit, only need filling of control cylinder disappointing, the compression that just can realize drive roll and rubber roller with separate two kinds of adjustment between pose; Can, by the inner gas pressure of adjusting cylinders, adjust easily the thrust between drive roll and rubber rollers simultaneously;
The drive roll of overlay film unit is made up of rigid material, and pressure roller is made up of flexible materials such as rubber.Under cylinder thrust, flexible compression roller deforms, guarantee that preimpregnation tow and release film are clamped by drive roll and pressure roller, prevent that preimpregnation tow and release film from skidding or being offset on drive roll surface, ensure the synchronism of preimpregnation tow and release film motion, avoid preimpregnation tow to occur relaxing because onward impulse has big difference.
Two drive rolls of the first overlay film unit and the second overlay film unit are associated by Timing Belt, synchronous pulley, keep the two rotative speed constant, thereby guarantee in this process that release film and preimpregnation tow are in tensioned state, prevent that the two from separating, be conducive to cutting and the control of overlay film precision of release film.
Divide cut unit for release film, knife rest end is provided with handle of a knife, is convenient to the rotation of knife rest, and cutter shaft is the axle of a hollow, certain thickness edge bearing is equipped with in inside, and blade is positioned between edge bearing and edge bearing, and cutter shaft two ends are provided with and hold out against nut, rotating nut, holds out against edge bearing, realizes the fixing of blade.The thickness of edge bearing has determined blade cutting edge spacing.By said apparatus, rotation handle of a knife can be realized the adjustment of the lower cutter degree of depth; And swivel knife shaft just can be realized the change of lower nose angle degree; Adjust the release film fillet that edge bearing thickness just can obtain different in width.
By this Apparatus and method for can realize automatic fiber placement preimpregnation tow fast, stablize overlay film, the preimpregnation tow after-combustion after overlay film becomes cylinder, is shaped, thereby has saved release film and cut the operation of after-combustion one-tenth tin for automatic fiber placement, has greatly improved work efficiency.
The film covering method of the described preimpregnation tow equipment for coating film of synchronously cutting release film, is characterized in that comprising following process: above-mentioned preimpregnation silk is carrying out having carried out strange, even-numbered packet transaction before the operation of described step 1; Odd number group preimpregnation silk and even number set preimpregnation silk are processed according to described step 1 to step 3 respectively; If the total single preimpregnation silk of n root in each group preimpregnation silk, single preimpregnation silk width is w; Also be w according to the adjacent single preimpregnation silk spacing of grouping principle, wide cut release film width is 2nw; If the inside edge of wide cut release film be L from wallboard distance, in every group of preimpregnation silk the inside edge of the single preimpregnation silk of inner side from wallboard apart from being L+0.5w; Described blade has n-1 sheet, and the spacing of adjacent knife blades is 2w, and a slice blade of inner side is L+2w from wallboard distance.
The grouping of preimpregnation silk can prevent from overlapping between single preimpregnation silk adjacent in not grouping situation and reduce the quality of preimpregnation silk; After the grouping of the silk of preimpregnation simultaneously, the spacing of adjacent single preimpregnation is w, for cutting of follow-up release film provides lower cutter position.
In order to ensure release film arrowband, to the pasting completely of single preimpregnation silk, general release film narrowband width is 2 times of single preimpregnation silk width.Therefore, the required release film arrowband beam overall of single preimpregnation silk that is w for n root, width is 2nw, and the width of wide cut release film should be 2nw.
In order further to guarantee the good covering of release film arrowband to single preimpregnation silk, should ensure that single preimpregnation silk is positioned at the midway location of corresponding with it release film arrowband as far as possible.In the time that the width preimpregnation silk that is w is positioned at width and is the midway location of release film arrowband of 2w, preimpregnation silk edge and edge, homonymy release film arrowband are 0.5w.If the inside edge of wide cut release film is L from wallboard distance, adjusting in every group of preimpregnation silk the inside edge of the single preimpregnation silk of inner side is L+0.5w from wallboard distance, after having ensured that wide cut release film is cut, single preimpregnation silk and with it the release film arrowband of correspondence meet the two relative position.
For the width that ensures release film arrowband is 2w, adjacent knife blades spacing is also 2w.Especially, for inboard blade, when wide cut release film inside edge is L apart from wallboard distance, the distance that inboard blade distance is wallboard is L+2w, not only ensure that the release film narrowband width of inner side is 2w, also ensured that other blades are positioned at the midway location of adjacent preimpregnation silk spacing just, have ensured the relative position of release film arrowband and preimpregnation silk.
Brief description of the drawings
Fig. 1 is the front view of synchronously cutting the preimpregnation tow equipment for coating film of release film in the embodiment of the present invention;
Fig. 2 synchronously cuts the preimpregnation tow film covering method schematic diagram of release film and the birds-eye view of equipment in the embodiment of the present invention;
Fig. 3 synchronously cuts the preimpregnation tow film covering method of release film and the release film of equipment point cut unit detail view in the embodiment of the present invention;
Number in the figure title:
A, one-level overlay film unit; B, release film divide cut unit; C, secondary overlay film unit; 1, wallboard; 2-1, the first drive roll; 2-2, the second drive roll; 3-1, the first rubber roller; 3-2, the second rubber roller; 4-1, the first fork; 4-2, the second fork; 5-1, the first cylinder; 5-2, the second cylinder; 6, wide cut release film unwinding shaft; 7, wide cut release film; 8, knife rest; 9, handle of a knife; 10, cutter shaft; 11, blade; 12, hold out against nut; 13, odd number group preimpregnation tow; 14 even number set preimpregnation tow; 15, edge bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described
As shown in Figure 1, the preimpregnation tow equipment for coating film that method of the present invention is mainly cut wide cut release film by on-line synchronous is realized, and mainly contains release film unwinding unit, one-level overlay film unit A, release film and cuts unit B and secondary overlay film unit C composition.When work, the n bar of first will be cut by cutting machine and obtain, the preimpregnation tow that width is w, preimpregnation tow is numbered apart from the size of wallboard distance according to preimpregnation tow, the odd even of numeral by number, preimpregnation tow is divided into two groups of a, b, wherein a group is odd-numbered tow 13, and b group is even-numbered tow 14.Because the follow-up flow process of two groups of preimpregnation tow is identical, therefore only describe below wherein the follow-up flow process of the preimpregnation tow overlay film that one group of release film synchronously cuts in detail.First guarantee that pressure rollers at different levels and imput shaft at different levels are in released state, cutter, in lifting status, is cut unit B and secondary overlay film unit C through one-level overlay film unit A, release film successively by preimpregnation tow and wide cut release film 7.During through overlay film unit B, preimpregnation tow and wide cut release film to be passed between pressure roller and drive roll.
According to the yarn outlet position of cutting rear preimpregnation tow, determine the arrangement position of each preimpregnation tow on the first drive roll 2-1 and the second drive roll 2-2, then determine the position of the wide cut release film 7 on release film unwinding shaft 6.In release film 7 inside edges and this group preimpregnation silk 13, the distance between the inward flange of inner side preimpregnation tow is 0.5w, and the more close wallboard of release film inward flange.Tighten each preimpregnation tow and wide cut release film, the first cylinder 5-1 and the second cylinder 5-2 pressurize successively, and rubber roller 3-1 and 3-2 overlay preimpregnation tow 13 and release film 7 on corresponding drive roll surface.In firsts and seconds overlay film unit A, C, the linear velocity of two drive rolls 2 is consistent, thus guarantee in this process release film 7 with preimpregnation tow group 13 in tensioned state, prevent that the two from separating, be conducive to cutting and the control of overlay film precision of release film.
Release film 7 and preimpregnation tow group 13 clamped fixing after, need to regulate the position of release film slitting blade 11.According to the packet mode from preimpregnation tow, between preimpregnation tow, having width is the gap of w.Adjust the position of release film slitting blade 11, make cutting edge position just be positioned at the center in two preimpregnation tow gaps, distance between blade is 2w, in the time that release film 6 is cut module with preimpregnation tow group 13 through release film, release film 6 just slitting has become the fillet that width is 2w, also ensure that each preimpregnation tow is positioned at the center of the release film after cutting, and has realized all standing of release film to preimpregnation tow simultaneously.Now rotate handle of a knife 9, lower cutter, cuts release film, adjusts the lower cutter degree of depth and lower nose angle degree, reaches the optimization of cutting effect, and the lower cutter degree of depth can regulate by the anglec of rotation of knife rest 8, and the change of lower nose angle degree is controlled by the rotation of cutter shaft 10.
Through aforesaid operations, continue to cut, just obtained the preimpregnation tow that completes overlay film, can directly carry out after-combustion in secondary overlay film module C exit, so just save the operation of cutting separately release film after-combustion one-tenth cylinder, save the time, improve efficiency.
Described above because of one of embodiments of the invention, but the present invention is not limited to described details.
Claims (4)
1. a preimpregnation tow equipment for coating film of synchronously cutting release film, is characterized in that:
Comprise release film unwinding unit, an overlay film unit, release film divides cut unit and secondary overlay film unit;
Wherein release film unwinding unit comprises the unwinding shaft (6) being installed on wallboard (1);
Wherein an overlay film unit comprises the first drive roll (2-1) and the first cylinder (5-1) that are installed on wallboard (1), also comprises the first rubber roller (3-1) being connected with the first cylinder (5-1) by the first fork (4-1);
Wherein release film point cut unit comprises rotatable tool rest (8), is fixed on the cutter shaft (10) on rotatable tool rest (8), is fixed on edge bearing (15) and the blade (11) on cutter shaft (10) by holding out against nut (12); It is upper that rotatable tool rest (8) one end is arranged on wallboard (1), and the other end has handle (9);
Secondary overlay film unit comprises the second drive roll (2-2) and the second cylinder (5-2) that are installed on wallboard (1), also comprises the second rubber roller (3-2) being connected with the second cylinder (5-2) by the second fork (4-2).
2. according to the preimpregnation tow equipment for coating film of synchronously cutting release film under claim 1, it is characterized in that: the first drive roll (2-1) is associated by Timing Belt, synchronous pulley with the second drive roll (2-2), and the two rotative speed equates.
3. preimpregnation tow equipment for coating film and method of synchronously cutting release film according to claim 1, is characterized in that comprising following process:
The wide cut release film (7) that step 1, preimpregnation silk and release film unwinding unit are emitted enters between the first drive roll (2-1) and the first rubber roller (3-1) in an overlay film unit, the first rubber roller (3-1) clamps with the first drive roll (2-1) under the effect of the first cylinder (5), completes overlay film for the first time;
Step 2, utilize release film point cut unit to cut the wide cut release film (7) that is affixed on preimpregnation silk surface, form arrowband;
Step 3, release film arrowband and the corresponding preimpregnation silk of cutting gained enter in secondary overlay film unit between the second drive roll (2-2) and the second rubber roller (3-2), the second rubber roller (3-2) clamps with the second drive roll (2-2) under the effect of the second cylinder (5-2), and the note of strengthening arrowband and preimpregnation silk covers effect.
4. the film covering method of preimpregnation tow equipment for coating film of synchronously cutting release film according to claim 2, is characterized in that comprising following process:
Above-mentioned preimpregnation silk is carrying out having carried out strange, even number packet transaction before the operation of described step 1; Odd number group preimpregnation silk and even number set preimpregnation silk are processed according to described step 1 to step 3 respectively; If the total single preimpregnation silk of n root in each group preimpregnation silk, and single preimpregnation silk width is w;
Also be w according to single preimpregnation silk spacing in the adjacent preimpregnation on the same group of grouping principle silk, required wide cut release film (7) width is 2nw; If the inside edge of wide cut release film (7) be L from wallboard (1) distance, in every group of preimpregnation silk the inside edge of the single preimpregnation silk of inner side from wallboard (1) apart from being L+0.5w;
Described blade (11) has n-1 sheet, and the spacing of adjacent knife blades (11) is 2w, and a slice blade (11) of inner side is L+2w from wallboard (1) distance.
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| CN201410236834.2A CN104058288B (en) | 2014-05-30 | 2014-05-30 | Pre-soaking tow film-coating device and method for synchronously slitting release films |
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| CN201410236834.2A CN104058288B (en) | 2014-05-30 | 2014-05-30 | Pre-soaking tow film-coating device and method for synchronously slitting release films |
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| CN104058288B CN104058288B (en) | 2017-01-11 |
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| CN106379759A (en) * | 2016-09-30 | 2017-02-08 | 铜陵其利电子材料有限公司 | Metallized film slitting unit |
| CN108147194A (en) * | 2017-12-05 | 2018-06-12 | 郑州源冉生物技术有限公司 | A kind of Manual adjustable plastic film cutting device |
| CN108729193A (en) * | 2018-07-24 | 2018-11-02 | 中国航空制造技术研究院 | A kind of composite material piddler is oriented to and rotation cutting integration makeup is set |
| CN108859177A (en) * | 2018-06-21 | 2018-11-23 | 江苏恒神股份有限公司 | The automatic fiber placement track post-processing approach of hemmed area |
| CN111573387A (en) * | 2020-05-22 | 2020-08-25 | 常州新创航空科技有限公司 | Automatic preimpregnation material cutting machine of high accuracy |
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| CN104058288B (en) | 2017-01-11 |
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