CN115633417B

CN115633417B - Preparation device and preparation method of flexible heating film

Info

Publication number: CN115633417B
Application number: CN202211645326.0A
Authority: CN
Inventors: 徐杰; 黄海涛; 冯沈庭; 任金凯; 刘孝伟
Original assignee: Jiangsu Aosheng Composite Materials Hi Tech Co ltd
Current assignee: Jiangsu Aosheng Composite Materials Hi Tech Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-03-17
Anticipated expiration: 2042-12-21
Also published as: CN115633417A

Abstract

The invention relates to a preparation device and a preparation method of a flexible heating film, wherein the device comprises a bottom plate, positioning block assemblies and a pressing block assembly, wherein the positioning block assemblies are respectively arranged on two opposite sides of the bottom plate in a first direction and form a surrounding barrier, and the surrounding barrier is provided with a first opening which allows an electrode strip to pass through; the pressing block assembly comprises a first pressing block and a second pressing block, the first pressing block and the second pressing block are rotatably connected to two opposite sides of the bottom plate in the second direction, and the first pressing block and the second pressing block can press two sides of the electronic cloth and the adhesive film on the bottom plate between the enclosing barriers; the method is realized by the preparation device of the flexible heating film. The device of the invention standardizes the sample preparation process under the matching of the positioning block component and the pressing block component, and has simple structure, convenient operation and low processing cost; the method provided by the invention can be operated by only one person when preparing the heating film sample, so that the efficiency is improved, and the operation error caused by manual sample preparation is reduced.

Description

Preparation device and preparation method of flexible heating film

Technical Field

The invention belongs to the field of preparation of flexible heating films for wind power blades, and particularly relates to a preparation device and a preparation method of a flexible heating film.

Background

Wind-powered electricity generation blade is the core part of wind turbine generator system with natural wind energy conversion for wind turbine generator system electric energy, and wind turbine generator system sets up in open air adverse circumstances, and when wind-powered electricity generation blade was in wet cold environment, the blade surface probably freezes, not only can reduce the generating efficiency, still probably causes irreversible damage to wind-powered electricity generation blade and wind turbine generator system when serious.

The flexible heating film/heating layer is arranged on the wind power blade, so that the wind power blade is prevented from being frozen or the wind power blade is deiced effectively, the flexible heating film is made of carbon fibers or carbon fiber/glass fiber mixed products, the resistance of the flexible heating film is an important index for controlling the performance of the flexible heating film, and therefore sampling test is carried out on each batch of raw materials, and the performance can reach the standard and then the batch production can be put into.

Taking the flexible heating film shown in fig. 1 as an example, the electrodes are disposed on the heating layer, the two sides of the heating layer are covered with adhesive films for positioning, and the two sides of the adhesive films are covered with electronic cloths. At present, the processing of the flexible heating film adopts manual paving and pasting and determines the position of each layer, the general flow is to pave and paste each material according to the drawing requirements, and then the sample preparation is completed after the materials pass through a plastic packaging machine. However, the method has the following disadvantages:

1. the sample preparation precision cannot be determined and controlled: each batch of sample preparation cannot guarantee that the samples are the same person, and the accuracy judgment of each person is different, so that the error range is different, and the accuracy of test data cannot be guaranteed;

2. the sample preparation efficiency is low: because the material of the sample preparation is very soft and thin, one person needs to carefully prepare the sample preparation, the other person needs to assist in the preparation, one person carries out primary resistance test on the raw material and the sample, more hands are needed, and the sample preparation capability of each person is different, so that the sample preparation efficiency is low; in addition, after the materials are paved, the positions of the materials may be moved carelessly in the hot pressing process, and after the sample is manufactured, whether the materials are qualified or not can be judged through measurement, and if the materials are not qualified, the sample preparation is repeated, so that the efficiency is low.

Disclosure of Invention

An object of the present invention is to provide a manufacturing apparatus of a flexible heating film.

In order to achieve the purpose, the invention adopts the technical scheme that:

an apparatus for manufacturing a flexible heating film, comprising:

a base plate;

a positioning block assembly: the positioning block assemblies are respectively arranged on two opposite sides of the bottom plate in the first direction and form an enclosure, a first opening is formed in the enclosure, and the first opening allows the electrode strip to pass through;

a briquetting assembly: the pressing block component comprises a first pressing block and a second pressing block, the first pressing block and the second pressing block are rotatably connected to two opposite sides of the bottom plate in the second direction, the first pressing block and the second pressing block can press two sides of the electronic cloth and the adhesive film on the bottom plate between the enclosing barriers,

wherein: the first direction is perpendicular to the second direction.

Preferably, in the above technical solution, the briquetting assembly further includes a third briquetting; the enclosure is also provided with a second opening, the third pressing block can pass through the second opening and press on the bottom plate, and the width of the second opening is matched with that of the third pressing block, so that the third pressing block passing through the second opening cannot swing left and right in the second opening.

Further preferably, the positioning block assembly includes a pair of first positioning blocks, and the second opening is formed between the pair of first positioning blocks.

Further preferably, when the third pressing block is pressed on the bottom plate, one end of the third pressing block extends out of the edge of the bottom plate, and the extending end of the third pressing block can be held to draw out the third pressing block.

In the above technical solution, preferably, the positioning block assembly includes a first positioning block and a second positioning block, the second positioning block is respectively located at two sides of the first positioning block, the first openings are respectively formed between the second positioning block and the first positioning block at two sides, that is, two first openings are formed on one of the barriers.

Further preferably, the first positioning block is linear; the second positioning block is L-shaped, and the L-shaped second positioning block can form partial enclosure from the first direction and the second direction, but cannot interfere with the first pressing block and the second pressing block in the second direction.

Preferably, the two L-shaped second positioning blocks at two sides jointly enclose a rectangular electronic cloth and adhesive film placing area, and the area of the placing area enclosed by the total four L-shaped second positioning blocks is matched with the size of the electronic cloth and the size of the adhesive film, so that the peripheries of the electronic cloth and the adhesive film can be quickly and accurately positioned in the placing area.

Further preferably, the first openings on the enclosure on the two sides are positioned on a straight line, so that one electrode can simultaneously penetrate through the first openings on the two sides, and the width of each first opening is matched with that of the electrode, so that the electrode penetrating through the first openings cannot sway left and right in the first openings, and positioning is realized.

Above-mentioned technical scheme is preferred, work as first briquetting, second briquetting press on the bottom plate, first briquetting, second briquetting between form the zone of heating and place the region, first briquetting, second briquetting between distance and the both sides width matching of zone of heating, make zone of heating both sides can be accurately positioned this and place the region.

Preferably, the edges of the first pressing block and the second pressing block are rotatably connected with the edges of the two opposite sides of the bottom plate through hinges, and the first pressing block and the second pressing block can be turned over through the hinges, so that the electronic cloth and the adhesive film can be placed or pressed on the bottom plate when the electronic cloth and the adhesive film are opened.

Another object of the present invention is to provide a method for preparing a flexible heating film.

a preparation method of a flexible heating film adopts the preparation device of the flexible heating film, and comprises the following steps:

s1: the first pressing block and the second pressing block are turned over and opened, the electronic cloth and the adhesive film are sequentially placed in a placing area enclosed by the positioning block assemblies on the two sides, the first pressing block and the second pressing block are turned over and covered, the first pressing block and the second pressing block press the two sides of the electronic cloth and the adhesive film on the lower layer to fix the electronic cloth and the adhesive film,

s2: the heating layer is arranged above the glue film in the arrangement area enclosed between the first pressing block and the second pressing block, a third pressing block penetrates through the second opening of the positioning block component and is arranged on the heating layer to be pressed,

s3: the electrode strip is arranged on the heating layer, passes through the first openings on the two side barriers and is heated and pre-fixed,

s4: the first pressing block and the second pressing block are turned over and opened, a layer of glue film is placed above the electrode strip, the third pressing block is drawn out and then placed on the glue film through the second opening to be pressed, finally, a layer of electronic cloth is placed, the third pressing block is taken out, and the preparation of the heating film sample is completed,

s5: and taking out the heating film sample from the device, clamping the heating film sample between release paper and carrying out plastic package.

Preferably, in the above technical solution, the method further includes the following steps between S2 and S3:

and the first pressing block and the second pressing block are turned over and opened, a layer of adhesive film is placed above the heating layer, the third pressing block is pulled out and then placed above the adhesive film through the second opening to be pressed, and the first pressing block and the second pressing block are turned over and covered.

According to the technical scheme, preferably, when the third pressing block is placed, the upper edge of the third pressing block is flush with the upper edge of the heating layer.

Preferably, in the technical scheme, when the heating layer is placed, the upper edge of the heating layer is kept flush with the upper edges of the first pressing block and the second pressing block.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the device of the invention standardizes the sample preparation process under the matching of the positioning block component and the pressing block component, and has simple structure, convenient operation and low processing cost;

the method provided by the invention can be operated by only one person when preparing the heating film sample, the efficiency is improved, and the operation error caused by manual sample preparation is reduced.

Drawings

FIG. 1 is a schematic perspective view of the apparatus of the present invention with the first, second and third press blocks covering the base plate;

FIG. 2 is a schematic front view of the apparatus of the present invention with the first, second and third compacts covering the bottom plate;

FIG. 3 is a schematic perspective view of the apparatus of the present invention with the first and second compacts open and the third compact covering the base plate;

FIG. 4 is a schematic front view of the apparatus of the present invention with the first and second compacts open and the third compact covering the base plate;

FIGS. 5 and 7 are schematic perspective views of the method S1 of the present invention;

FIGS. 6 and 8 are schematic front views of the method S1 of the present invention;

FIGS. 9 and 11 are schematic perspective views of the method S2 of the present invention;

FIGS. 10 and 12 are schematic front views of the method S2 of the present invention;

FIG. 13 is a schematic perspective view of a method S3 of the present invention;

FIG. 14 is a schematic front view of a method S3 of the present invention;

FIG. 15 is a schematic perspective view of a method S4 of the present invention;

FIG. 16 is a schematic front view of the method S4 of the present invention.

In the above drawings:

1. a base plate;

20. a first opening; 21. a second opening; 22. a first positioning block; 23. a second positioning block;

30. a first pressing block; 31. a second pressing block; 32. a third pressing block; 33. a hinge;

40. fiber cloth; 41. a glue film; 42. a carbon felt; 43. and (4) a copper strip.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

A preparation device of a flexible heating film comprises a bottom plate 1, a positioning block assembly and a pressing block assembly. The respective components are described in detail below.

The base plate 1 is a main body for preparing a heating film, and is rectangular as shown in the drawing. The base plate 1 is defined as a first direction in the length direction and a second direction in the width direction in the present embodiment, and the first direction of the rectangular base plate 1 is perpendicular to the second direction.

The positioning block assemblies are respectively arranged on two opposite sides of the bottom plate 1 in a first direction (length direction) to form a surrounding barrier, and the surrounding barrier is provided with a first opening 20 and a second opening 21. In this embodiment:

the positioning block assembly comprises a first positioning block 22 and a second positioning block 23, wherein the first positioning block 22 and the second positioning block 23 are both provided with a pair, namely two, and the positioning block assemblies on two sides comprise four first positioning blocks 22 and four second positioning blocks 23.

The pair of second positioning blocks 23 are respectively located at two sides of the pair of first positioning blocks 22, and a first opening 20 is formed between one second positioning block 23 and one first positioning block 22 at two sides, namely, one enclosure is provided with two first openings 20; the second opening 21 is formed between a pair of first positioning blocks 22, that is, a second opening 21 is formed on a fence, and the second opening 21 is located between two first openings 20. The width of first opening 20 matches with the width of electrode, and both sides enclose first opening 20 on keeping off and lie in a straight line, and when placing the electrode, usable first opening 20 is with the quick accurate placing in the assigned position of electrode to can block the electrode a little, prevent its horizontal slip, be favorable to alone quick operation.

The first positioning block 22 is linear, the second positioning block 23 is L-shaped, and the linear first positioning block 22 extends along the second direction to form a barrier in the first direction; l shape second locating piece 23 extends a subsection along first direction, second direction respectively, can follow first direction, second direction go up the fender that encloses of formation part, two sides L shape second location 23 block enclose jointly and close and be the electron cloth of rectangle, the glued membrane and place the region, the regional area of placing that four total L shape second locating pieces 23 enclose matches with the size of electron cloth, glued membrane, make electron cloth, glued membrane all around all can be fast, accurately fix a position in should place the region, prevent that it from removing in all directions.

The pressing block assembly includes a first pressing block 30, a second pressing block 31, and a third pressing block 32. Wherein:

the first pressing piece 30 and the second pressing piece 31 are rotatably connected to two opposite sides of the bottom plate 1 in the second direction. Specifically, the method comprises the following steps: the edges of the first pressing block 30 and the second pressing block 31 are rotatably connected with the edges of the two opposite sides of the bottom plate 1 through hinges 33, the first pressing block 30 and the second pressing block 31 can be turned over through the hinges 33, and electronic cloth and an adhesive film can be placed or pressed on the bottom plate 1 through opening. When the first pressing block 30 and the second pressing block 31 are turned over and opened, electronic cloth and an adhesive film can be placed (laid) on the bottom plate; when first briquetting 30, second briquetting 31 upset pressure are on bottom plate 1, first briquetting 30, second briquetting 31 prevent on bottom plate 1 that the material of below from being driven in follow-up operation with electron cloth, glued membrane pressure when, form the zone of placeeing of zone of heating between first briquetting 30, the second briquetting 31, distance between first briquetting 30, the second briquetting 31 matches with the both sides width of zone of heating, make the zone of heating both sides can accurately be positioned this and place the region, realize the centering of zone of heating, make the heating film of preparation advance the standard unified.

Although the first pressing piece 30 and the second pressing piece 31 are connected in the second direction of the bottom plate 1, the first pressing piece 30 and the second pressing piece 31 do not interfere with the L-shaped second positioning block 23 extending for a short section in the second direction when the first pressing piece 30 and the second pressing piece 31 are turned. In the drawings: the first pressing block 30 and the second pressing block 31 press the electronic cloth, and the width of both sides of the adhesive film is half of the total width of the L-shaped second positioning block 23.

The third pressing block 32 may be a pressing block with a smooth surface and a certain weight, such as a steel ruler, and the third pressing block 32 may pass through the second opening 21 and press on the bottom plate 1, and the width of the second opening 21 matches the width of the third pressing block 32, so that the third pressing block 32 passing through the second opening 21 does not shake left and right in the second opening 21. When placing (laying), press third briquetting 32 on lower floor's material through second opening 21, prevent that lower floor's material from being driven, do not influence simultaneously again that follow-up material utilizes the accurate location of locating block subassembly to place (lay) when placing (laying).

The following preparation process of this example is specifically illustrated:

the first embodiment is as follows:

preparing heating film layers:

electronic cloth: a fiber cloth 40;

adhesive film 41: reticulated thermoplastic (thermoplastic polyurethane (TPU), copolyamide (PA), ethylene Vinyl Acetate (EVA), polyolefin (PO), polyethersulfone (PES));

a heating layer: carbon felt 42, or glass carbon felt;

an electrode: a copper bar 43.

S1: the first pressing block 30 and the second pressing block 31 are turned over and opened, a layer of fiber cloth 40 and a layer of adhesive film 41 are sequentially paved in the placement area enclosed by the positioning block components on the two sides, as shown in figures 5 and 6,

turning over the first pressing block 30 and the second pressing block 31 to cover them, pressing the first pressing block 30 and the second pressing block 31 against the lower fiber cloth 40 and the two sides of the adhesive film 41 to fix them, as shown in FIGS. 7 and 8,

s2: placing a carbon felt 42 or a glass carbon felt 42 above the glue film 41 in the placement area enclosed between the first pressing block 30 and the second pressing block 31, keeping the upper edge of the carbon felt 42 flush with the upper edges of the first pressing block 30 and the second pressing block 31, and during placement, paying attention to the direction of the carbon felt 42, so that the length of the carbon felt in the MD direction is just equal to the distance between the first pressing block 30 and the second pressing block 31, as shown in FIGS. 9 and 10,

the third pressing block 32 is placed on the carbon felt 42 by using the second opening 21 in the middle of the positioning block assembly to be pressed, the upper edge of the third pressing block 32 is flush with the upper edge of the carbon felt 42, the lower end of the third pressing block 32 extends out of the edge of the bottom plate 1, as shown in figures 11 and 12,

s3: two copper strips 43 are placed on the carbon felt 42, the copper strips 43 passing through the first openings 20 of the two side barriers, as shown in figures 13 and 14,

pre-fixing, heating the electric iron by electrifying, slightly pressing a plurality of points on the two copper strips 43 to slightly melt the adhesive film 41, fixing the positions of the layers,

s4: the first pressing block 30 and the second pressing block 31 are turned over and opened, a layer of glue film 41 is laid on the copper bar 43, the extending end of the third pressing block 32 is held, the third pressing block 32 is slowly drawn out and then is lightly placed on the glue film 41 through the second opening 21, a layer of fiber cloth 40 is laid, the third pressing block 32 is slowly taken out, as shown in figures 15 and 16,

s5: carefully taking out the sample from two sides, clamping the sample between two layers of release paper, and after passing through a plastic sealing machine twice, taking out the sample to measure whether the upper and lower sides of the middle carbon felt 42 are vertical to the copper bars 43 and whether the distance between the inner sides of the two copper bars 43 is within an error range.

Example two:

the present embodiment is substantially the same as the first embodiment, except that: after S2, the following steps are further included between S3 and S3, the carbon felt 42 is placed:

the first pressing block 30 and the second pressing block 31 are turned over and opened, a layer of glue film 41 is laid, the size of the glue film is consistent with that of the glue film 41 below, the extending end of the third pressing block 32 is held, the third pressing block 32 is slowly drawn out and then is lightly placed above the glue film 41 through the second opening 21, and the first pressing block 30 and the second pressing block 31 are turned over and covered.

Namely, after the carbon felt 42 is placed, a layer of adhesive film 41 is paved, so that the copper bar 43 can be better fixed, and the copper bar 43 cannot displace relative to the carbon felt 42.

The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this means. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A preparation facilities of flexible heating film which characterized in that: the method comprises the following steps:

a base plate;

wherein: the first direction is perpendicular to the second direction.

2. The apparatus for manufacturing a flexible heating film according to claim 1, wherein: the briquetting component also comprises a third briquetting; the enclosure is also provided with a second opening, and the third pressing block can penetrate through the second opening to press on the bottom plate.

3. The apparatus for manufacturing a flexible heating film according to claim 2, wherein: the positioning block assembly comprises a pair of first positioning blocks, and the second opening is formed between the pair of first positioning blocks.

4. The apparatus for manufacturing a flexible heating film according to claim 2, wherein: when the third pressing block presses on the bottom plate, one end of the third pressing block extends out of the edge of the bottom plate.

5. The apparatus for manufacturing a flexible heating film according to claim 1, wherein: the positioning block assembly comprises a first positioning block and a second positioning block, the second positioning block is respectively positioned at two sides of the first positioning block, and first openings are respectively formed between the second positioning block and the first positioning block at two sides.

6. The manufacturing apparatus of a flexible heating film according to claim 5, wherein: the first positioning block is linear; the second positioning block is L-shaped.

7. The apparatus for manufacturing a flexible heating film according to claim 6, wherein: the second positioning blocks in the L shapes at two sides jointly enclose a rectangular electronic cloth and adhesive film placing area.

8. The manufacturing apparatus of a flexible heating film according to claim 1 or 5, characterized in that: the first openings on the enclosing barriers on the two sides are positioned on a straight line.

9. The apparatus for manufacturing a flexible heating film according to claim 1, wherein: when the first pressing block and the second pressing block press on the bottom plate, a heating layer placing area is formed between the first pressing block and the second pressing block.

10. The apparatus for manufacturing a flexible heating film according to claim 1, wherein: the edges of the first pressing block and the second pressing block are rotatably connected with the edges of the two opposite sides of the bottom plate through hinges.

11. A preparation method of a flexible heating film is characterized by comprising the following steps: a manufacturing apparatus of a flexible heating film according to any one of claims 1 to 10, which comprises the steps of:

12. The method of manufacturing a flexible heating film according to claim 11, characterized in that: the following steps are also included between S2 and S3:

13. The method of manufacturing a flexible heating film according to claim 11, characterized in that: when the heating layer is placed, the upper edge of the heating layer is kept flush with the upper edges of the first pressing block and the second pressing block.