CN117732672A - Parallel coating equipment - Google Patents
Parallel coating equipment Download PDFInfo
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- CN117732672A CN117732672A CN202410191970.8A CN202410191970A CN117732672A CN 117732672 A CN117732672 A CN 117732672A CN 202410191970 A CN202410191970 A CN 202410191970A CN 117732672 A CN117732672 A CN 117732672A
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- 238000000576 coating method Methods 0.000 title claims abstract description 234
- 239000011248 coating agent Substances 0.000 title claims abstract description 226
- 238000001035 drying Methods 0.000 claims abstract description 125
- 238000005507 spraying Methods 0.000 claims abstract description 69
- 238000007761 roller coating Methods 0.000 claims abstract description 39
- 239000010408 film Substances 0.000 claims description 283
- 238000004804 winding Methods 0.000 claims description 25
- 239000010409 thin film Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000012545 processing Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 7
- 239000010410 layer Substances 0.000 description 23
- 239000003973 paint Substances 0.000 description 19
- 238000007756 gravure coating Methods 0.000 description 11
- 238000001514 detection method Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 239000007921 spray Substances 0.000 description 5
- 239000013072 incoming material Substances 0.000 description 4
- 230000007306 turnover Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The invention discloses parallel coating equipment, which relates to the technical field of coating and comprises a film sequentially wound on a first unreeling device, a first roller coating device, a first drying device, a first surface changing device, a second roller coating device, a second drying device, a first reversing device, a second reversing device, a first spraying device, a third drying device, a second surface changing device, a second spraying device, a fourth drying device and a second reeling device. The parallel coating equipment can carry out double-sided multilayer coating processing on the film without transferring the coiled film by an operator, thereby accelerating the production takt of the double-sided multilayer coating film and being beneficial to improving the production efficiency of the double-sided multilayer coating film.
Description
Technical Field
The invention relates to the technical field of coating, in particular to parallel coating equipment.
Background
The coating machine is a device for producing a film surface coating process, a layer of coating with a specific function is coated on the film surface, and after the coating is solidified and dried, the coated finished film is rolled. The double-sided multilayer coating process refers to coating multiple layers of coatings of different functions on both sides of a film. In the prior art, an operator firstly places a coiled film in a coating device to carry out coating, so that two sides of the film are coated with a layer of coating; then, an operator transfers the film with the paint on both sides of the coiled film to another coating device for spraying, so that the paint on both sides of the film is covered with another paint, and further the double-sided multilayer coating processing of the film is completed, and the double-sided multilayer paint film can be obtained. The method for completing double-sided coating processing by transferring the film has slower speed, and is not beneficial to improving the production efficiency of the double-sided multilayer coating film.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides parallel coating equipment which is beneficial to improving the production efficiency of the double-sided multilayer coating film.
The parallel coating apparatus according to an embodiment of the present invention includes:
the film rolling device comprises a first unreeling device, a first roller coating device and a first drying device, wherein the first unreeling device is used for unreeling a film, the first roller coating device is arranged on the right side of the first unreeling device and is used for carrying out roller coating on one side of the film so that one side of the film is coated with a layer of first coating, the first drying device is arranged on the right side of the first roller coating device and is used for drying the first coating on the film;
the first surface changing device is arranged on the right side of the first drying device and is used for overturning the film by 180 degrees;
the second roller coating device is arranged on the right side of the first surface changing device, the second roller coating device is used for carrying out roller coating on the other surface of the film so as to enable the other surface of the film to be coated with a layer of second coating, the second drying device is arranged on the left side of the second roller coating device, the second drying device is arranged above the first drying device, and the second drying device is used for drying the second coating on the film;
the first reversing device is arranged at the left sides of the first unreeling device and the second drying device and is used for changing the moving direction of the film so as to enable the film to move from front to back;
the second reversing device is arranged behind the first reversing device and is used for changing the moving direction of the film so as to enable the film to move from left to right;
the first spraying device is arranged on the right side of the second reversing device, the first spraying device is used for spraying the second coating on the other surface of the film so that a layer of third coating is covered on the second coating, the third drying device is arranged on the right side of the first spraying device, and the third drying device is used for drying the third coating on the film;
the second surface changing device is arranged on the right side of the third drying device and is used for overturning the film by 180 degrees;
the second spraying device is arranged on the right side of the second surface changing device, the second spraying device is used for spraying the first coating on one surface of the film so that a layer of fourth coating is covered on the first coating, the fourth drying device is arranged on the left side of the second spraying device, the fourth drying device is arranged above the third drying device, and the fourth drying device is used for drying the fourth coating on the film;
the second winding device is arranged on the left side of the fourth drying device and is used for winding the film.
Has at least the following beneficial effects:
the first unreeling device unreels the reeled film, the film moves from left to right, and the first roller coating device positioned on the right of the first unreeling device carries out roller coating on one surface of the film, so that one surface of the film is coated with a layer of first coating; then, the film and the first coating on the film enter a first drying device positioned on the right side of a first roller coating device, and the first drying device dries the first coating; the film passes through a first surface changing device after coming out of a first drying device, and the first surface changing device can enable the film to turn over 180 degrees, so that a second roller coating device can roll coat the other surface of the film, and a layer of second coating is coated on the other surface of the film; at the moment, the film moves from right to left, and a second drying device positioned at the left side of the second roller coating device dries the second coating on the film; the film is moved to the first reversing device after coming out of the second drying device. The first reversing device can change the moving direction of the film, so that the film moves from right to left and from front to back; the film moving from front to back passes through the second reversing device positioned behind the first reversing device, and the second reversing device can change the moving direction of the film, so that the film moves from front to back to left to right.
The film moving from left to right passes through a first spraying device positioned on the right side of a second reversing device, and the first spraying device sprays second coating on the other surface of the film, so that a layer of third coating is coated on the second coating; then, the film moves to a third drying device from left to right, and the third drying device dries the third coating; the film passes through the second surface changing device after coming out of the third drying device, and the second surface changing device can enable the film to turn over 180 degrees, so that the second spraying device can spray one surface of the film, and further a layer of fourth coating is coated on the first coating on one surface of the film. The film moves from right to left after passing through the second spraying device, and a fourth drying device positioned at the left side of the second spraying device dries fourth paint on the film, so that a film with four layers of paint on two sides can be obtained; and finally, a second winding device positioned at the left side of the fourth drying device winds the film so as to finish double-sided multilayer coating processing of the film. The parallel coating equipment can carry out double-sided multilayer coating processing on the film without transferring the coiled film by an operator, thereby accelerating the production takt of the double-sided multilayer coating film and being beneficial to improving the production efficiency of the double-sided multilayer coating film.
The parallel coating equipment provided by the embodiment of the invention further comprises a first preheating device, wherein the first preheating device is arranged between the first unreeling device and the first roller coating device, and the first preheating device is used for preheating the film.
According to the parallel coating equipment provided by the embodiment of the invention, the first reversing device comprises the first bracket and the first reversing roller, the second reversing device comprises the second bracket and the second reversing roller, the axes of the first reversing roller and the second reversing roller are perpendicular to the up-down direction, the included angle between the axis of the first reversing roller and the left-right direction is 45 degrees, the included angle between the axis of the second reversing roller and the left-right direction is 45 degrees, the included angle between the first reversing roller and the second reversing roller faces right, both ends of the first reversing roller are rotatably connected to the first bracket, both ends of the second reversing roller are rotatably connected to the second bracket, the first reversing roller is used for winding the film so as to change the film from moving from right to left to moving back, and the second reversing roller is used for winding the film so as to change the film from moving from right to left to right.
According to the parallel coating equipment provided by the embodiment of the invention, the first reversing roller is a first round table roller, the large end of the first round table roller is far away from the second drying device, the second reversing roller is a second round table roller, the large end of the second round table roller is close to the first spraying device, and the surfaces of the first round table roller and the second round table roller are both used for being abutted against the film.
According to the parallel coating equipment provided by the embodiment of the invention, the outer wall of the first reversing roller is provided with the first coating and the second coating, the first coating is close to the second drying device, the second coating is far away from the second drying device, the first coating is used for abutting with a part of the film close to the second drying device, the second coating is used for abutting with another part of the film far away from the second drying device, and the friction coefficient of the first coating is smaller than that of the second coating.
According to the parallel coating equipment provided by the embodiment of the invention, the outer wall of the second reversing roller is provided with the third coating and the fourth coating, the third coating is far away from the first spraying device, the fourth coating is close to the first spraying device and is used for abutting with a part of the film far away from the first spraying device, the fourth coating is used for abutting with another part of the film close to the first spraying device, and the friction coefficient of the third coating is smaller than that of the fourth coating.
According to the parallel coating equipment provided by the embodiment of the invention, the first reversing device further comprises a first traction roller, a second traction roller and a third traction roller, the first traction roller and the second traction roller are parallel to the front-back direction, the front end and the back end of the first traction roller and the front end and the back end of the second traction roller are rotatably connected with the first bracket, the second traction roller is arranged above the first traction roller, the third traction roller is parallel to the left-right direction, the left end and the right end of the third traction roller are rotatably connected with the first bracket, and the film is sequentially wound on the first traction roller, the second traction roller, the first reversing roller and the third traction roller.
The parallel coating equipment provided by the embodiment of the invention further comprises an offset detection device, a traction device and a linear driving device, wherein the offset detection device is provided with a preset offset range, the offset detection device is arranged on the first reversing device and is used for detecting the offset of the film, the traction device is arranged between the first reversing device and the second reversing device and is used for winding the film, and the linear driving device is used for driving the traction device to move along the left-right direction so as to enable the offset of the film to fall into the preset offset range.
According to the parallel coating equipment provided by the embodiment of the invention, the offset detection device comprises the connecting block and the offset sensor, wherein the connecting block is provided with the mounting port, the offset sensor is arranged on the inner wall of the mounting port, the area corresponding to the offset sensor in the mounting port is used for allowing the film to pass through, and the offset sensor is used for detecting the offset of the film.
According to the parallel coating device provided by the embodiment of the invention, the connecting block is slidably connected to the first reversing device along the left-right direction.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic top view of a parallel coating apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first unreeling device, a first roller coating device, a first drying device, a first surface changing device, a second roller coating device, a second drying device, a first reeling device and a first preheating device in the parallel coating device according to the embodiment of the invention;
fig. 3 is a schematic structural diagram of a first spraying device, a third drying device, a second surface changing device, a second spraying device, a fourth drying device, a second winding device, a second unwinding device and a second preheating device in the parallel coating apparatus according to the embodiment of the present invention;
fig. 4 is a schematic structural view of a first unreeling device in the parallel coating apparatus of the embodiment of the present invention;
fig. 5 is a schematic structural view of a first preheating device in the parallel coating apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second winding device in the parallel coating apparatus according to the embodiment of the present invention;
fig. 7 is a schematic structural view of a first reversing device in the parallel coating apparatus according to the embodiment of the present invention;
FIG. 8 is a schematic view of a partial enlarged structure at A in FIG. 7;
FIG. 9 is a schematic view of a film wound on a conventional reversing roll;
fig. 10 is a schematic structural view of a first reversing roller and a second reversing roller in the parallel coating apparatus according to the embodiment of the present invention;
FIG. 11 is a schematic view of a structure in which a film is wound around a first reversing roller and a second reversing roller in a parallel coating apparatus according to an embodiment of the present invention;
FIG. 12 is a schematic view of a first coating, a second coating, a third coating, and a fourth coating in a parallel coating apparatus according to an embodiment of the present invention;
FIG. 13 is a schematic view of a parallel coating apparatus according to an embodiment of the present invention, wherein the film is wound around the first, second, third and fourth coatings;
reference numerals:
a first unreeling device 100; a first roll coating device 110; first drying means 120; a first face changing device 130; a second roll coating device 140; a second drying device 150; a first winder 160; a first preheating device 170;
a first reversing device 200; a first traction roller 210; a second traction roller 220; a third pulling roll 230; a first reversing roller 240; a first coating 241; a second coating 242;
a second reversing device 300; a second reversing roller 310; a third coating 311; a fourth coating 312;
an offset detection device 400; connecting block 410; a mounting port 411; a correction sensor 420; traction device 500;
a first spraying device 600; a third drying device 610; a second face changing device 620; a second spraying device 630; fourth drying means 640; a second winding device 650; a second unreeling device 660; a second preheating device 670.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements 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.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
It is emphasized that in the present invention, "thin" in a film does not refer to the thickness of the film, but particularly refers to a film-like material that is coated and processed in the technical field of coating processing.
Referring to fig. 1 to 3, a parallel coating apparatus according to an embodiment of the present invention includes:
the first unreeling device 100, the first roller coating device 110 and the first drying device 120, wherein the first unreeling device 100 is used for unreeling a film, the first roller coating device 110 is arranged on the right side of the first unreeling device 100, the first roller coating device 110 is used for carrying out roller coating on one surface of the film so that one surface of the film is coated with a layer of first coating, the first drying device 120 is arranged on the right side of the first roller coating device 110, and the first drying device 120 is used for drying the first coating on the film;
the first surface changing device 130, the first surface changing device 130 is arranged on the right side of the first drying device 120, and the first surface changing device 130 is used for turning the film 180 degrees;
the second roll coating device 140 and the second drying device 150, the second roll coating device 140 is arranged on the right side of the first surface changing device 130, the second roll coating device 140 is used for roll coating the other surface of the film so that a layer of second coating is coated on the other surface of the film, the second drying device 150 is arranged on the left side of the second roll coating device 140, the second drying device 150 is arranged above the first drying device 120, and the second drying device 150 is used for drying the second coating on the film;
the first reversing device 200, the first reversing device 200 is arranged at the left side of the first unreeling device 100 and the second drying device 150, and the first reversing device 200 is used for changing the moving direction of the film so as to enable the film to move from front to back;
the second reversing device 300 is arranged behind the first reversing device 200, and the second reversing device 300 is used for changing the moving direction of the film so as to enable the film to move from left to right;
the first spraying device 600 and the third drying device 610, the first spraying device 600 is arranged at the right side of the second reversing device 300, the first spraying device 600 is used for spraying the second coating on the other side of the film so that a layer of third coating is covered on the second coating, the third drying device 610 is arranged at the right side of the first spraying device 600, and the third drying device 610 is used for drying the third coating on the film;
the second surface changing device 620, the second surface changing device 620 is arranged on the right side of the third drying device 610, and the second surface changing device 620 is used for turning the film 180 degrees;
the second spraying device 630 and the fourth drying device 640, the second spraying device 630 is arranged on the right side of the second surface changing device 620, the second spraying device 630 is used for spraying the first coating on one surface of the film so that a layer of fourth coating is covered on the first coating, the fourth drying device 640 is arranged on the left side of the second spraying device 630, the fourth drying device 640 is arranged above the third drying device 610, and the fourth drying device 640 is used for drying the fourth coating on the film;
the second winding device 650, the second winding device 650 is arranged at the left side of the fourth drying device 640, and the second winding device 650 is used for winding the film.
It will be appreciated that the first unreeling device 100 unreels the rolled film, the film moves from left to right, and the first roll coating device 110 located at the right side of the first unreeling device 100 rolls one side of the film, so that one side of the film is coated with a layer of the first coating material; next, the film and the first coating on the film enter a first drying device 120 positioned on the right side of the first roller coating device 110, and the first drying device 120 dries the first coating; the film passes through the first surface changing device 130 after coming out of the first drying device 120, and the first surface changing device 130 can enable the film to turn over 180 degrees, so that the second roller coating device 140 can roll coat the other surface of the film, and a layer of second coating is coated on the other surface of the film; at this time, the film moves from right to left, and the second drying device 150 located at the left side of the second roll coating device 140 dries the second coating material on the film; the film is moved to the first reversing device 200 after exiting the second drying device 150. The first reversing device 200 can change the moving direction of the film, so that the film moves from right to left and from front to back; the film moving from front to back passes through the second reversing device 300 positioned behind the first reversing device 200, and the second reversing device 300 can change the moving direction of the film, so that the film moves from front to back to left to right.
The film moving from left to right passes through a first spraying device 600 positioned on the right side of the second reversing device 300, and the first spraying device 600 sprays a second coating on the other surface of the film, so that a layer of third coating is covered on the second coating; then, the film moves from left to right to the third drying device 610, and the third drying device 610 dries the third coating; the film passes through the second surface changing device 620 after coming out of the third drying device 610, and the second surface changing device 620 can turn over the film by 180 degrees, so that the second spraying device 630 can spray one surface of the film, and further, the first coating on one surface of the film is covered with a layer of fourth coating. The film moves from right to left after passing through the second spraying device 630, and the fourth drying device 640 positioned at the left side of the second spraying device 630 dries the fourth coating on the film, so that a film with four layers of coatings on two sides can be obtained; finally, the second winding device 650 located at the left of the fourth drying device 640 winds the film to complete the double-sided multi-layer coating process of the film. The parallel coating equipment can carry out double-sided multilayer coating processing on the film without transferring the coiled film by an operator, thereby accelerating the production takt of the double-sided multilayer coating film and being beneficial to improving the production efficiency of the double-sided multilayer coating film.
It should be noted that a double-sided multilayer coating film refers to a film having multiple layers of coating applied to both sides of the film. In the embodiment of the invention, two layers of paint, namely a first paint and a fourth paint, are coated on one surface of the film, wherein the first paint is coated on the surface of one surface of the film, and the fourth paint is coated on the surface of the first paint; the other side of the film is coated with two layers of paint, namely a second paint and a third paint, wherein the second paint is coated on the surface of the other side of the film, and the third paint is coated on the surface of the second paint.
Specifically, the moving direction of the film is changed by the first reversing device 200 and the second reversing device 300, so that the third drying device 610 can be arranged at the rear of the first drying device 120, the fourth drying device 640 can be arranged at the rear of the second drying device 150, and the second surface changing device 620 can be arranged at the rear of the first surface changing device 130, thereby reducing the length of the parallel coating equipment and improving the occupation space utilization rate of the factory building in the length direction.
Referring to fig. 2 and 5, the parallel coating apparatus further includes a first preheating device 170, the first preheating device 170 being disposed between the first unreeling device 100 and the first roll coating device 110, the first preheating device 170 being for preheating the thin film. It will be appreciated that the first preheating device 170 may preheat the film, increasing the temperature of the film, which may help to improve paint adhesion; on the other hand, the preheating can spread the film, effectively avoids the film from wrinkling, and is further beneficial to improving the yield of the double-sided multilayer coating film.
Referring to fig. 1 to 6, as an embodiment of the present invention, the parallel coating apparatus further includes a first winding device 160, the first winding device 160 is disposed at the lower left of the second drying device 150, and the first winding device 160 is disposed at the left of the first unwinding device 100; the parallel coating apparatus further includes a second unreeling device 660 and a second preheating device 670, the second unreeling device 660 is disposed at the left side of the first spraying device 600, and the second preheating device 670 is disposed between the second unreeling device 660 and the first spraying device 600. The parallel coating equipment of the embodiment of the invention can be split into two production lines, and one film can be sequentially wound on the first unreeling device 100, the first preheating device 170, the first roller coating device 110, the first drying device 120, the first surface changing device 130, the second roller coating device 140, the second drying device 150 and the first reeling device 160, so that double-sided coating processing of one film can be completed; the other film may be sequentially wound around the second unwinding device 660, the second preheating device 670, the first spraying device 600, the third drying device 610, the second surface changing device 620, the second spraying device 630, the fourth drying device 640 and the second winding device 650, so that the double-sided coating process of the other film may be completed. When the parallel coating apparatus separates two production lines to perform the double-sided coating process on two films, the first and second reversing devices 200 and 300 do not operate.
In the embodiment of the present invention, the parallel coating apparatus further includes a first micro gravure coating device, a second micro gravure coating device, a first switching device, and a second switching device, where the first micro gravure coating device is connected to the first roll coating device 110 through the first switching device; the second micro gravure coating device is connected to the first spraying device 600 through a second switching device. It should be noted that micro gravure coating uses a micro-groove coating technique that uses fine grooves to hold the coating liquid, then a spreader blade wipes off the excess liquid, leaving only the liquid in the grooves, and then transfers it to the film.
In the invention, the first switching device can enable the first micro-gravure coating device and the first roller coating device 110 to be switched back and forth rapidly, so that the first roller coating device 110 can roll-coat a film or enable the first micro-gravure coating device to micro-gravure coat the film; the second switching device can rapidly switch the second micro gravure coating device and the first spraying device 600 back and forth, so that the first spraying device 600 can spray the film or the second micro gravure coating device can perform micro gravure coating on the film. The parallel coating equipment can finish not only roller coating and spraying processing, but also micro gravure coating processing, and improves the applicability of the coating equipment.
Referring to fig. 1 to 6, in the embodiment of the present invention, the first and second drying devices 120 and 150 are both drying boxes, and the first and second preheating devices 170 and 670 are both preheating ovens.
Referring to fig. 7, the first reversing device 200 includes a first bracket and a first reversing roller 240, the second reversing device 300 includes a second bracket and a second reversing roller 310, axes of the first reversing roller 240 and the second reversing roller 310 are perpendicular to the up-down direction, an included angle between the axes of the first reversing roller 240 and the left-right direction is 45 °, an included angle between the axes of the second reversing roller 310 and the left-right direction is 45 °, an included angle between the first reversing roller 240 and the second reversing roller 310 is right, both ends of the first reversing roller 240 are rotatably connected to the first bracket, both ends of the second reversing roller 310 are rotatably connected to the second bracket, the first reversing roller 240 is used for winding a film so as to change the film from moving from right to left to moving from front to back, and the second reversing roller 310 is used for winding the film so as to change the film from moving from front to back to left. It will be appreciated that the film coming out of the second drying device 150 is moved from right to left, and the film moving from right to left is wound around the first reversing roller 240, and the first reversing roller 240 and the second reversing roller 310 are both 45 ° in the left-right direction, and the angle between the first reversing roller 240 and the second reversing roller 310 is right, so that the film on the right side of the first reversing roller 240 is moved from right to left, and the film behind the first reversing roller 240 is moved from front to back. After leaving the first reversing roller 240, the film moving forward and backward is wound on the second reversing roller 310, the film above the second reversing roller 310 moves forward and backward, and the film on the right side of the second reversing roller 310 moves left and right.
It should be explained that, in the prior art, referring to fig. 9, after the film is wound on the reversing roller, because the reversing roller will generally form a certain included angle with the moving direction of the film, the tension of a part of the film wound on the reversing roller is uneven, so that a part of the film wound on the reversing roller close to the feeding direction (the direction of the arrow in the drawing is the feeding direction) can be tightly attached to the reversing roller, while another part of the film wound on the reversing roller far from the feeding direction cannot be tightly attached to the reversing roller, so that the stress of a part of the film wound on the reversing roller is larger, and the stress of another part of the film is smaller, thereby causing uneven stress of the film, further causing the film to wrinkle, and being unfavorable for improving the yield of the film.
Referring to fig. 10 and 11, arrows in the drawings indicate the moving direction of the film. In the embodiment of the present invention, for the first reversing roller 240, the feeding direction is that of the film moving right to left of the first reversing roller 240, the first reversing roller 240 is a first circular table roller, and the large end of the first circular table roller is far away from the second drying device 150, that is, the large end of the first circular table roller is far away from the feeding direction of the film. Because the outer wall of the first round table roller gradually contracts from the big end to the small end, part of the film which is far away from the feeding direction and wound on the first reversing roller 240 can be clung to the first reversing roller 240, so that the film can be uniformly stressed on the first reversing roller 240, and the film wound on the first reversing roller 240 is prevented from being wrinkled. For the second reversing roller 310, the feeding direction is that the film moves forward and backward in front of the second reversing roller 310, the second reversing roller 310 is a second round table roller, the big end of the second round table roller is close to the first spraying device 600, that is, the big end of the second round table roller is far away from the feeding direction of the film. Because the outer wall of the second round table roller gradually contracts from the big end to the small end, part of the film which is far away from the feeding direction and wound on the second reversing roller 310 can be clung to the second reversing roller 310, so that the film can be uniformly stressed on the second reversing roller 310, and the film wound on the second reversing roller 310 is prevented from being wrinkled. Through setting up first circle bench roller and second circle bench roller for the film can hug closely on the outer wall of first circle bench roller and second circle bench roller, has guaranteed to wind the film atress of establishing on first circle bench roller and second circle bench roller even, is favorable to improving the yields of film.
It should be noted that the first circular table roller and the second circular table roller are in a circular table shape, that is, the diameters of the first circular table roller and the second circular table roller gradually increase along the axis.
It should be explained that, a part of the film wound on the reversing roller close to the feeding direction can be clung to the reversing roller, and another part of the film wound on the reversing roller far away from the feeding direction cannot be clung to the reversing roller, so that the pressure between the part of the film wound on the reversing roller and the reversing roller is larger, and the pressure between the other part of the film wound on the reversing roller and the reversing roller is smaller, so that the film is subjected to uneven friction force, and further the film is easy to wrinkle, which is unfavorable for improving the yield of the film. And if the difference between the friction force to which a part of the film is subjected and the friction force to which another part of the film is subjected is larger, the film is more likely to buckle.
Referring to fig. 12 and 13, arrows in the drawings indicate the moving direction of the film. In the embodiment of the present invention, the outer wall of the first reversing roller 240 is provided with a first coating 241 and a second coating 242, the first coating 241 is close to the second drying device 150, the second coating 242 is far away from the second drying device 150, the first coating 241 is used for abutting against a part of the film close to the second drying device 150, the second coating 242 is used for abutting against another part of the film far away from the second drying device 150, and the friction coefficient of the first coating 241 is smaller than that of the second coating 242. It will be appreciated that the first coating 241 is configured to abut against a portion of the film adjacent to the second drying device 150, i.e., the first coating 241 is configured to abut against a portion of the film adjacent to the incoming material direction; the second coating layer 242 is used for abutting against another part of the film far from the second drying device 150, i.e. the second coating layer 242 is used for abutting against a part of the film far from the incoming material direction. Because the pressure between the part of the film wound on the first coating 241 and the first coating 241 is larger, and the pressure between the other part of the film wound on the second coating 242 and the second coating 242 is smaller, and because the friction coefficient of the first coating 241 is smaller than that of the second coating 242, the difference between the friction force born by the part of the film and the friction force born by the other part of the film is reduced, the possibility of wrinkling of the film wound on the first reversing roller 240 is reduced, and the yield of the film is improved.
Referring to fig. 12 and 13, a third coating 311 and a fourth coating 312 are provided on the outer wall of the second reversing roller 310, the third coating 311 is far from the first spraying device 600, the fourth coating 312 is close to the first spraying device 600, the third coating 311 is used for abutting with a part of the film far from the first spraying device 600, the fourth coating 312 is used for abutting with another part of the film close to the first spraying device 600, and the friction coefficient of the third coating 311 is smaller than that of the fourth coating 312. It will be appreciated that the third coating 311 is configured to abut a portion of the film away from the first spraying device 600, i.e., the third coating 311 is configured to abut a portion of the film proximate to the incoming material direction; the fourth coating 312 is used to abut another portion of the film near the first spraying device 600, i.e., the fourth coating 312 is used to abut a portion of the film away from the incoming material direction. Because the pressure between the part of the film wound on the third coating 311 and the third coating 311 is larger, and the pressure between the other part of the film wound on the fourth coating 312 and the fourth coating 312 is smaller, and because the friction coefficient of the third coating 311 is smaller than that of the fourth coating 312, the difference between the friction force born by the part of the film and the friction force born by the other part of the film is reduced, the possibility of wrinkling of the film wound on the second reversing roller 310 is reduced, and the yield of the film is improved.
Referring to fig. 7, the first reversing device 200 further includes a first pull roll 210, a second pull roll 220, and a third pull roll 230, wherein the first pull roll 210 and the second pull roll 220 are parallel to the front-back direction, the front-back ends of the first pull roll 210 and the second pull roll 220 are rotatably connected to the first bracket, the second pull roll 220 is disposed above the first pull roll 210, the third pull roll 230 is parallel to the left-right direction, the left-right ends of the third pull roll 230 are rotatably connected to the first bracket, and the film is sequentially wound around the first pull roll 210, the second pull roll 220, the first reversing roll 240, and the third pull roll 230. In the embodiment of the present invention, the second reversing device 300 further includes a fourth traction roller, a fifth traction roller and a sixth traction roller, the fourth traction roller and the fifth traction roller are parallel to the left-right direction, the left-right ends of the fourth traction roller and the fifth traction roller are rotatably connected to the second bracket, the fifth traction roller is disposed above the fourth traction roller, the sixth traction roller is parallel to the front-back direction, the front-back ends of the sixth traction roller are rotatably connected to the second bracket, and the film is sequentially wound around the fourth traction roller, the fifth traction roller, the second reversing roller 310 and the sixth traction roller.
Referring to fig. 1, 7 and 8, the parallel coating apparatus further includes an offset detection device 400, a traction device 500, and a linear driving device, wherein the offset detection device 400 is provided with a preset offset range, the offset detection device 400 is disposed on the first reversing device 200, the offset detection device 400 is used for detecting an offset of the film, the traction device 500 is disposed between the first reversing device 200 and the second reversing device 300, the traction device 500 is used for winding the film, the linear driving device is electrically connected with the offset detection device 400, and the linear driving device is used for driving the traction device 500 to move along a left-right direction so that the offset of the film falls within the preset offset range. The offset detecting device 400 may detect an offset of the film, and when the offset of the film falls outside a preset offset range, the offset detecting device 400 transmits a signal to the linear driving device, and the linear driving device drives the driving device 500 to move in a left-right direction, so that the driving device 500 can drive the film wound on the driving device 500 to move in the left-right direction, and further change the offset of the film, so that the offset of the film can fall within the preset offset range. It can be appreciated that by providing the deviation detecting device 400, the traction device 500 and the linear driving device, the deviation amount of the film can be adjusted in real time, so that the film can be maintained at a predetermined position, and the position deviation during the coating or spraying process is avoided, thereby improving the quality of the double-sided multilayer coating film.
Referring to fig. 8, the deviation detecting device 400 includes a connection block 410 and a deviation correcting sensor 420, the connection block 410 is provided with a mounting opening 411, the deviation correcting sensor 420 is disposed on an inner wall of the mounting opening 411, a region corresponding to the deviation correcting sensor 420 in the mounting opening 411 is used for allowing a film to pass through, and the deviation correcting sensor 420 is used for detecting a deviation of the film. It can be understood that the film is inserted into the mounting opening 411, and a deviation correcting sensor 420 is disposed on the inner wall of the mounting opening 411, where the deviation correcting sensor 420 can detect the deviation of the film in real time. The connection block 410 is slidably connected to the first reversing device 200 in the left-right direction. It can be appreciated that the operator can make films with different specifications always pass through the mounting opening 411 on the connecting block 410 by sliding the connecting block 410 left and right, so that the deviation correcting sensor 420 can always detect the deviation of the films, and the applicability of the deviation detecting device 400 is improved.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
Of course, the present invention is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are included in the scope of the present invention as defined in the claims.
Claims (10)
1. A parallel coating apparatus, comprising:
the film rolling device comprises a first unreeling device, a first roller coating device and a first drying device, wherein the first unreeling device is used for unreeling a film, the first roller coating device is arranged on the right side of the first unreeling device and is used for carrying out roller coating on one side of the film so that one side of the film is coated with a layer of first coating, the first drying device is arranged on the right side of the first roller coating device and is used for drying the first coating on the film;
the first surface changing device is arranged on the right side of the first drying device and is used for overturning the film by 180 degrees;
the second roller coating device is arranged on the right side of the first surface changing device, the second roller coating device is used for carrying out roller coating on the other surface of the film so as to enable the other surface of the film to be coated with a layer of second coating, the second drying device is arranged on the left side of the second roller coating device, the second drying device is arranged above the first drying device, and the second drying device is used for drying the second coating on the film;
the first reversing device is arranged at the left sides of the first unreeling device and the second drying device and is used for changing the moving direction of the film so as to enable the film to move from front to back;
the second reversing device is arranged behind the first reversing device and is used for changing the moving direction of the film so as to enable the film to move from left to right;
the first spraying device is arranged on the right side of the second reversing device, the first spraying device is used for spraying the second coating on the other surface of the film so that a layer of third coating is covered on the second coating, the third drying device is arranged on the right side of the first spraying device, and the third drying device is used for drying the third coating on the film;
the second surface changing device is arranged on the right side of the third drying device and is used for overturning the film by 180 degrees;
the second spraying device is arranged on the right side of the second surface changing device, the second spraying device is used for spraying the first coating on one surface of the film so that a layer of fourth coating is covered on the first coating, the fourth drying device is arranged on the left side of the second spraying device, the fourth drying device is arranged above the third drying device, and the fourth drying device is used for drying the fourth coating on the film;
the second winding device is arranged on the left side of the fourth drying device and is used for winding the film.
2. The parallel coating apparatus according to claim 1, wherein: the film rolling device further comprises a first preheating device, wherein the first preheating device is arranged between the first unreeling device and the first roller coating device and is used for preheating the film.
3. The parallel coating apparatus according to claim 1, wherein: the first reversing device comprises a first support and a first reversing roller, the second reversing device comprises a second support and a second reversing roller, the axes of the first reversing roller and the second reversing roller are perpendicular to the up-down direction, the included angle between the axes of the first reversing roller and the left-right direction is 45 degrees, the included angle between the axes of the second reversing roller and the left-right direction is 45 degrees, the included angle between the first reversing roller and the second reversing roller is right, two ends of the first reversing roller are rotatably connected to the first support, two ends of the second reversing roller are rotatably connected to the second support, the first reversing roller is used for winding the film, so that the film is changed from right-to-left movement to front-to-back movement, and the second reversing roller is used for winding the film, so that the film is changed from front-to-back movement to left-to-right movement.
4. A parallel coating apparatus according to claim 3, characterized in that: the first reversing roller is a first round table roller, the large end of the first round table roller is far away from the second drying device, the second reversing roller is a second round table roller, the large end of the second round table roller is close to the first spraying device, and the surfaces of the first round table roller and the second round table roller are both used for being in butt joint with the film.
5. A parallel coating apparatus according to claim 3, characterized in that: the outer wall of the first reversing roller is provided with a first coating and a second coating, the first coating is close to the second drying device, the second coating is far away from the second drying device, the first coating is used for being abutted to a part of the film close to the second drying device, the second coating is used for being abutted to another part of the film far away from the second drying device, and the friction coefficient of the first coating is smaller than that of the second coating.
6. The parallel coating apparatus according to claim 5, wherein: the outer wall of the second reversing roller is provided with a third coating and a fourth coating, the third coating is far away from the first spraying device, the fourth coating is close to the first spraying device, the third coating is used for being abutted to a part of the film far away from the first spraying device, the fourth coating is used for being abutted to another part of the film close to the first spraying device, and the friction coefficient of the third coating is smaller than that of the fourth coating.
7. A parallel coating apparatus according to claim 3, characterized in that: the first reversing device further comprises a first traction roller, a second traction roller and a third traction roller, wherein the first traction roller and the second traction roller are parallel to the front-back direction, the front end and the back end of the first traction roller and the front end and the back end of the second traction roller are rotatably connected to the first bracket, the second traction roller is arranged above the first traction roller, the third traction roller is parallel to the left-right direction, the left end and the right end of the third traction roller are rotatably connected to the first bracket, and the film is sequentially wound on the first traction roller, the second traction roller, the first reversing roller and the third traction roller.
8. The parallel coating apparatus according to claim 1, wherein: the device comprises a first reversing device, a second reversing device, a thin film, a first reversing device, a second reversing device, a traction device and a linear driving device, wherein the first reversing device is used for reversing the thin film, the second reversing device is used for reversing the thin film, the first reversing device is used for reversing the thin film, the second reversing device is used for reversing the thin film, the first reversing device is used for reversing the thin film, and the first reversing device is used for reversing the thin film.
9. The parallel coating apparatus of claim 8, wherein: the deviation detecting device comprises a connecting block and a deviation correcting sensor, wherein the connecting block is provided with a mounting opening, the deviation correcting sensor is arranged on the inner wall of the mounting opening, the region corresponding to the deviation correcting sensor in the mounting opening is used for the thin film to pass through, and the deviation correcting sensor is used for detecting the deviation of the thin film.
10. The parallel coating apparatus according to claim 9, wherein: the connecting block is slidably connected to the first reversing device in the left-right direction.
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| CN202410191970.8A CN117732672B (en) | 2024-02-21 | 2024-02-21 | Parallel coating equipment |
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| CN117732672B CN117732672B (en) | 2024-06-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118025875A (en) * | 2024-04-11 | 2024-05-14 | 长园新能源材料研究院(广东)有限公司 | Film surface changing mechanism, coating equipment and coating process |
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|---|---|
| CN117732672B (en) | 2024-06-18 |
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