CN113650277B - Pattern generating roller device for winding film forming equipment - Google Patents
Pattern generating roller device for winding film forming equipment Download PDFInfo
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- CN113650277B CN113650277B CN202110992640.5A CN202110992640A CN113650277B CN 113650277 B CN113650277 B CN 113650277B CN 202110992640 A CN202110992640 A CN 202110992640A CN 113650277 B CN113650277 B CN 113650277B
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- roller
- absorption
- film layer
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- negative pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/002—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a pattern generating roller device for winding film forming equipment, which mainly comprises a roller body and a low vacuum pump; the roller body is a double-layer mechanism and comprises an inner roller and an outer roller; the outer roller surface is of a net structure, and a mesh array is arranged on the outer roller surface; an absorption hole array is arranged on the roller wall of the inner roller; the absorbing holes in the absorbing hole array are connected with the meshes in the mesh array through absorbing pipelines, and the absorbing holes are in one-to-one correspondence with the meshes; the inner roller is of a cavity structure, the end part of the inner roller is connected with a low vacuum pump, and the low vacuum pump pumps the inner roller into negative pressure relative to the air pressure in the working chamber; the pattern generating roller device partially removes a wet film layer which is not formed on the flexible base film wound around the roller body through negative pressure absorption, thereby forming a film layer with a specific pattern on the flexible base film.
Description
Technical Field
The invention belongs to the technical field of roll-to-roll film preparation, and particularly relates to a pattern generating roller device for winding film forming equipment.
Background
In recent years, patterning requirements of flexible films are increasing, and micro grooves or specific patterns, such as nano silver wire transparent conductive films, graphene-silicon rubber composite films, micro-fluidic chip unit layers and the like, need to be carved on a flexible substrate. Currently, film patterning on flexible substrates generally employs etching or thermal embossing techniques, but these two film patterning techniques have various drawbacks for implementation on certain flexible film products.
The etching technology needs to be implemented by adopting photoresist and a precise mask, the photoresist is not easy to uniformly distribute on the flexible substrate, the patterning effect can be affected, in addition, the cost of the precise mask is higher, the flexible patterning flexible film product production with flexible and changeable patterns is not facilitated, and more importantly, the etching technology is difficult to etch patterns with different depths in the same film layer. When the patterning is implemented by the hot embossing technology, the film substances in the pattern grooves are pushed downwards or upwards, so that the density difference of each part of the film layer can be caused, and adverse effects are brought to certain purposes; in addition, when the hot stamping is used for patterning, the thin film substance is extruded and simultaneously heated and shaped, so that the properties of certain organic film materials are changed, and the strength and the conductivity of the film are influenced.
Disclosure of Invention
In order to solve the above problems, the present invention provides a pattern generating roller device for a winding film forming apparatus, mainly comprising a roller body and a low vacuum pump; the roller body is a double-layer mechanism and comprises an inner roller and an outer roller; the outer roller surface is of a net structure, and a mesh array is arranged on the outer roller surface; an absorption hole array is arranged on the roller wall of the inner roller; the absorbing holes in the absorbing hole array are connected with the meshes in the mesh array through absorbing pipelines, and the absorbing holes are in one-to-one correspondence with the meshes; the inner roller is of a cavity structure, the end part of the inner roller is connected with a low vacuum pump, and the low vacuum pump pumps the inner roller into negative pressure relative to the air pressure outside the roller body; the pattern generating roller device partially removes a wet film layer which is not formed on the flexible base film wound around the roller body through negative pressure absorption, thereby forming a film layer with a specific pattern on the flexible base film.
The inner side of the roller wall of the inner roller is provided with a covering cylinder slot; a masking cylinder may be inserted into the masking cylinder slot, the masking cylinder having a deployed shape corresponding to a particular pattern to be provided on the film layer formed on the flexible base film.
The covering cylinder shields and seals certain absorption holes in the absorption hole array on the roller wall from the inner side of the roller wall of the inner roller; when the pattern generating roller device works, negative pressure of the inner roller can generate negative pressure absorption on the wet film layers covered on the meshes from the non-shielded absorption holes through the absorption pipelines and the meshes connected with the inner roller, so that the wet film layers on the flexible base film wound around the roller body are removed.
The negative pressure absorption force of the roller body on the wet film layer can be adjusted by controlling the exhaust speed of the low vacuum pump, and the part of the wet film layer covered on the mesh holes can be completely removed or partially removed.
In one embodiment of the present invention, the pattern creating roller apparatus further comprises a controller; an electric control valve is arranged on the absorption pipeline; after the controller receives the pattern generation instruction, the controller starts the electric control valves on some absorption pipelines according to a preset pattern generation program, and negative pressure of the inner roller can generate negative pressure absorption on the wet film layers covered on the meshes from the absorption pipelines through the absorption holes and the meshes connected with the absorption pipelines, so that the wet film layers on the flexible base film wound around the roller body are removed.
The controller can independently adjust the opening of the electric control valve on certain absorption pipelines to independently control the negative pressure absorption force of the controlled meshes connected with the absorption pipelines on the wet film layer, so that the wet film layer covered on the controlled meshes is completely or partially removed.
The controller controls the negative pressure absorption forces of a plurality of adjacent meshes to the wet film layer respectively to enable the negative pressure absorption forces of the adjacent meshes to form gradual change trend, so that the wet film layer covered on the adjacent meshes forms a groove pattern with continuously gradual change depth, and the shaped film layer has the groove pattern with continuously gradual change depth.
The controller can also form patterns with different depths on a plurality of areas of the wet film layer by respectively controlling the negative pressure absorption force of meshes of the areas to the wet film layer, so that the shaped film layer has patterns with different depths on different areas.
The two embodiments of the pattern generating roller device for forming the groove patterns with the depth continuously gradually changed in the film layer and enabling the film layer to have the patterns with the different depths in different areas are significant in the generation of the grooves on the microfluidic unit layer. The pattern generating roller device can be used for preparing the microfluidic unit layer with the groove patterns with different depths, the depth of the groove patterns is controllable, and the microfluidic chip can realize high-difficulty microfluidic functions of screening, intercepting and the like on particles with different scales.
The winding film forming equipment with the pattern generating roller device also comprises a working chamber, a coating module and a shaping module, wherein the pattern generating roller device is arranged at the downstream of the coating module. The shaping module is positioned at the downstream of the pattern generating roller device; the shaping module adopts one curing form selected from light heating curing, drying box heating curing or ultraviolet light curing to carry out curing shaping on the wet film layer, so as to form the flexible film layer with specific patterns.
The lower stream of the shaping module is provided with a laminating roller; the number of the laminating rollers is 2, and the laminating rollers are oppositely arranged; a protective film roller is arranged in the working chamber; the laminating roller is used for pressing and covering the protective film from the protective film winding roller on the surface of the shaped flexible film layer to protect the film layer on the flexible base film.
A vacuum system and an inflation system are arranged on the working chamber; the vacuum system is used for creating a clean vacuum environment in the working chamber, and the inflation system is used for inflating working gas. Before the flexible film is prepared, the gas in the working chamber is pumped out through a vacuum system, so that the vacuum degree in the working chamber is more than 10Pa (namely, the pressure is less than 10 Pa), then the working gas is introduced into the working chamber through an inflation system, and the pressure of the gas in the working chamber is controlled within a range of 0.01-0.1 MPa.
The pattern generating roller device is applied to the preparation of graphene-silicon rubber composite flexible film products, can realize the generation of patterns by absorbing part of wet film layers through negative pressure, and can also enable the graphene-silicon rubber composite flexible film to keep original mechanical properties, heat resistance and electrical properties.
The invention has the beneficial effects that:
the pattern generating roller device enables the wet film layer to generate set patterns through a negative pressure absorption process, and then the setting module is used for solidifying and setting the wet film layer to form a flexible film with specific patterns, so that the original property of the film layer is patterned on the flexible film without damage; the flexible film patterning device adopts the interpolation type covering cylinder and the independently controllable absorption pipeline to realize various flexible and variable film patterning, and can realize the mass production of flexible films with flexible and variable patterns at low cost. Particularly, the method is significant in the generation of the grooves on the microfluidic unit layer, the microfluidic unit layer with the groove patterns with different depths can be prepared by applying the pattern generation roller device, the depth of the groove patterns is controllable, and the microfluidic chip can realize high-difficulty microfluidic functions of screening, intercepting and the like on particles with different scales.
Drawings
FIG. 1 is a schematic view of the structure of one embodiment of a pattern creating roller apparatus of the present invention;
FIG. 2 is a schematic view of another embodiment of a pattern creating roller apparatus of the present invention;
fig. 3 is a schematic view of the structure of the pattern generating roller device of the present invention implemented on a winding film forming apparatus.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings. It should be understood that the detailed description is intended to illustrate and explain the invention, and not to limit the invention.
FIG. 1 is a schematic view showing the structure of an embodiment of a pattern generating roller device of the present invention, which is used for winding a film forming apparatus, as shown in the drawing, mainly comprising a roller body 1 and a low vacuum pump 2; the roller body 1 is a double-layer mechanism and comprises an inner roller 3 and an outer roller 4; the roll surface of the outer roll 4 is of a net structure, and a mesh array is arranged on the roll surface; an absorption hole array is arranged on the roller wall of the inner roller 3; the absorption holes 5 in the absorption hole array are connected with the meshes 6 in the mesh array through absorption pipelines 7, and the absorption holes and the meshes are in one-to-one correspondence; the inside of the inner roller 3 is of a cavity structure, the end part of the inner roller 3 is connected with the low vacuum pump 2, and the low vacuum pump 2 pumps the inside of the inner roller into negative pressure relative to the air pressure in the working chamber; the pattern generating roller device partially removes the wet film layer which has not been formed on the flexible base film wound around the roller body 1 by negative pressure absorption, thereby forming a film layer having a specific pattern on the flexible base film.
The inner side of the roller wall of the inner roller 3 is provided with a covering cylinder slot; a masking cylinder 8 may be inserted into the masking cylinder slot, the developed shape of the masking cylinder 8 corresponding to the particular pattern that the film layer to be formed on the flexible base film has.
The covering cylinder 8 seals some absorption holes in the absorption hole array on the roller wall from the inner side of the roller wall of the inner roller 3; when the pattern generating roller device works, negative pressure of the inner roller can generate negative pressure absorption on the wet film layers covered on the meshes from the non-shielded absorption holes through the absorption pipelines and the meshes connected with the inner roller, so that the wet film layers on the flexible base film wound around the roller body are removed.
By controlling the exhaust speed of the low vacuum pump 2, the negative pressure absorption force of the roller body on the wet film layer can be adjusted, and the wet film layer covered on the mesh holes can be completely removed or partially removed.
Fig. 2 is a schematic structural view of another embodiment of the pattern creating roller apparatus of the present invention. As shown, in this embodiment, the pattern creating roller apparatus further includes a controller; an electric control valve 9 is arranged on the absorption pipeline 7; after the controller receives the pattern generation instruction, the controller starts the electric control valves on some absorption pipelines according to a preset pattern generation program, and negative pressure of the inner roller can generate negative pressure absorption on the wet film layers covered on the meshes from the absorption pipelines through the absorption holes and the meshes connected with the absorption pipelines, so that the wet film layers on the flexible base film wound around the roller body are removed. The controller can independently adjust the opening of the electric control valve on certain absorption pipelines to independently control the negative pressure absorption force of the controlled meshes connected with the absorption pipelines on the wet film layer, so that the wet film layer covered on the controlled meshes is completely or partially removed. The controller controls the negative pressure absorption forces of a plurality of adjacent meshes to the wet film layer respectively to enable the negative pressure absorption forces of the adjacent meshes to form gradual change trend, so that the wet film layer covered on the adjacent meshes forms a groove pattern with continuously gradual change depth, and the shaped film layer has the groove pattern with continuously gradual change depth. In addition, the controller can also form patterns with different depths on a plurality of areas of the wet film layer by respectively controlling the negative pressure absorption force of meshes of the plurality of areas to the wet film layer, so that the shaped film layer has patterns with different depths on different areas.
Fig. 3 is a schematic view of the structure of the pattern generating roller device of the present invention implemented on a winding film forming apparatus. As shown in the drawing, the winding film forming apparatus further includes a working chamber 10, a coating module 11, a shaping module 12, and a wind-up roll 18, and a pattern generating roll device 13 is disposed downstream of the coating module 11. The coating module 11 coats the coating material on the surface of the flexible base film to form a wet film layer; a pattern generating roller device 13 arranged at the downstream of the coating module 11 partially removes a wet film layer which is not formed on the flexible base film wound around the roller body through a negative pressure absorption process, so that the wet film layer generates a set pattern; the sizing module 12 is located downstream of the pattern creating roller arrangement 13; the shaping module 12 adopts one curing form selected from light heating curing, drying box heating curing or ultraviolet light curing to cure and shape the wet film layer to form the flexible film layer with specific patterns.
A laminating roller 14 is arranged at the downstream of the shaping module 12; the number of the laminating rollers is 2, and the laminating rollers are oppositely arranged; a protective film roller 15 is arranged in the working chamber; the laminating roller is used for pressing and covering the protective film from the protective film winding roller 15 on the surface of the shaped flexible film layer to protect the film layer on the flexible base film.
A vacuum system 16 and an inflation system 17 are arranged on the working chamber; the vacuum system 16 is used to create a clean vacuum environment within the working chamber 10 and the inflation system 17 is used to inflate the working gas. Before the flexible film is prepared, the gas in the working chamber is pumped out through a vacuum system, so that the vacuum degree in the working chamber is more than 10Pa (namely, the pressure is less than 10 Pa), then the working gas is introduced into the working chamber through an inflation system, and the pressure of the gas in the working chamber is controlled within a range of 0.01-0.1 MPa.
Claims (4)
1. A pattern generating roller device for a winding film forming apparatus mainly includes a roller body and a low vacuum pump; the roller body is a double-layer mechanism and comprises an inner roller and an outer roller; the outer roller surface is of a net structure, and a mesh array is arranged on the outer roller surface; an absorption hole array is arranged on the roller wall of the inner roller; the absorption holes in the absorption hole array are connected with the meshes in the mesh array through absorption pipelines; the inner roller is of a cavity structure, the end part of the inner roller is connected with a low vacuum pump, and the low vacuum pump pumps the inner roller into negative pressure relative to the air pressure outside the roller body; the pattern generating roller device is arranged at the downstream of the coating module, and the coating module coats the coating material on the surface of the flexible base film to form a wet film layer; the pattern generating roller device partially removes a wet film layer which is not formed on the flexible base film wound around the roller body through negative pressure absorption, so that a film layer with a specific pattern is formed on the flexible base film; the wet film layer is solidified and shaped through a shaping module to form a flexible film with specific patterns, and the original property of the film layer is subjected to patterning on the flexible film without damage, so that the flexible film maintains the original mechanical property, heat resistance and electrical property;
the pattern creating roller apparatus further includes a controller; an electric control valve is arranged on the absorption pipeline; after the controller receives the pattern generation instruction, an electric control valve on some absorption pipelines is opened according to a preset pattern generation program, and negative pressure of the inner roller can absorb the wet film layers covered on the meshes from the absorption pipelines through the absorption holes and the meshes connected with the inner roller, so that the wet film layers on the flexible base film wound around the roller body are removed; the controller can independently adjust the opening of the electric control valve on some absorption pipelines to independently control the negative pressure absorption force of the controlled meshes connected with the absorption pipelines on the wet film layer, so that the wet film layer covered on the controlled meshes is completely or partially removed;
the controller controls the negative pressure absorption forces of a plurality of adjacent meshes to the wet film layer respectively to enable the negative pressure absorption forces of the adjacent meshes to form gradual change trend, so that the wet film layer covered on the adjacent meshes forms a groove pattern with continuously gradual change depth; or the controller respectively controls the negative pressure absorption force of the meshes of the multiple areas to the wet film layer to form patterns with different depths on the multiple areas of the wet film layer.
2. The pattern generating roller apparatus for a winding film forming apparatus according to claim 1, wherein: the inner side of the roller wall of the inner roller is provided with a covering cylinder slot; a masking cylinder may be inserted into the masking cylinder slot, the masking cylinder having a deployed shape corresponding to a particular pattern to be provided on the film layer formed on the flexible base film.
3. The pattern generating roller apparatus for a winding film forming apparatus according to claim 2, wherein: the covering cylinder shields and seals certain absorption holes in the absorption hole array on the roller wall from the inner side of the roller wall of the inner roller; when the pattern generating roller device works, negative pressure of the inner roller can generate negative pressure absorption on the wet film layers covered on the meshes from the non-shielded absorption holes through the absorption pipelines and the meshes connected with the inner roller, so that the wet film layers on the flexible base film wound around the roller body are removed.
4. The pattern generating roller apparatus for a winding film forming apparatus according to claim 1, wherein: the negative pressure absorption force of the roller body on the wet film layer can be adjusted by controlling the exhaust speed of the low vacuum pump, and the part of the wet film layer covered on the mesh holes can be completely removed or partially removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110992640.5A CN113650277B (en) | 2021-08-27 | 2021-08-27 | Pattern generating roller device for winding film forming equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110992640.5A CN113650277B (en) | 2021-08-27 | 2021-08-27 | Pattern generating roller device for winding film forming equipment |
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| CN113650277A CN113650277A (en) | 2021-11-16 |
| CN113650277B true CN113650277B (en) | 2023-04-21 |
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