CN116371677A - Coating device, coating device control method and coating machine - Google Patents
Coating device, coating device control method and coating machine Download PDFInfo
- Publication number
- CN116371677A CN116371677A CN202310336976.5A CN202310336976A CN116371677A CN 116371677 A CN116371677 A CN 116371677A CN 202310336976 A CN202310336976 A CN 202310336976A CN 116371677 A CN116371677 A CN 116371677A
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- push rod
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- 238000000576 coating method Methods 0.000 title claims abstract description 190
- 239000011248 coating agent Substances 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims description 47
- 238000001514 detection method Methods 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 description 30
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
- B05C5/0262—Coating heads with slot-shaped outlet adjustable in width, i.e. having lips movable relative to each other in order to modify the slot width, e.g. to close it
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a coating device, a coating device control method and a coating machine, wherein the coating device comprises: the coating die head assembly comprises a coating die head assembly and two groups of back rollers, wherein the two groups of back rollers are respectively positioned at two ends of the coating die head assembly, at least one group of back rollers is provided with a movable driving mechanism, and the movable driving mechanism can drive the back rollers to move relative to the coating die head assembly so as to adjust the interval between the back rollers and the coating die head assembly; wherein the coating die assembly is configured to be position adjustable when only one set of the backing rolls is configured with a movement drive mechanism; when two sets of back rollers are all configured with the movable driving mechanism, the coating die head assembly is arranged to be adjustable in position or fixedly arranged on the frame, and through the arrangement, the distance between the coating die head assembly and the two sets of back rollers can be independently adjusted, so that different double-sided coating requirements are met.
Description
Technical Field
The invention relates to the technical field of coating equipment, in particular to a coating device, a coating device control method and a coating machine.
Background
The coating is a processing process of spreading and attaching materials with specific functions on the surface of a substrate, a coating die consists of an upper die head and a lower die head, wherein a discharge slit is formed between the upper die head and the lower die head, the end part of the slit is communicated with the external environment to form a lip, the lip outputs coating liquid onto the substrate wound by a back roller, in order to realize simultaneous coating of two opposite surfaces of the substrate, the lips are arranged on two sides of the coating die head, the lips of the two coating die heads face opposite, the back rollers are respectively arranged at the two lip positions, so that the occupied space of the whole coating die head is saved, but if the coating gap between the coating die head and one back roller is regulated by moving the coating die head, the coating gap between the coating die head and the other back roller is also influenced, and the structure of the coating die head for simultaneously outputting slurry on two sides has the problem that the coating gap is not regulated.
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 a coating device which can adjust the coating gap at two sides of a coating die head.
The invention also provides a control method of the coating device.
The invention also provides a coating machine.
An embodiment of a coating apparatus according to the first aspect of the present invention includes: the coating die head assembly comprises a coating die head assembly and two groups of back rollers, wherein the two groups of back rollers are respectively positioned at two ends of the coating die head assembly, at least one group of back rollers is provided with a movable driving mechanism, and the movable driving mechanism can drive the back rollers to move relative to the coating die head assembly so as to adjust the interval between the back rollers and the coating die head assembly; wherein the coating die assembly is configured to be position adjustable when only one set of the backing rolls is configured with a movement drive mechanism; when the two groups of back rollers are provided with the movable driving mechanisms, the coating die head assembly is arranged to be adjustable in position or fixedly arranged on the frame.
The coating device provided by the embodiment of the invention has at least the following beneficial effects: so that the distance between the coating die assembly and the two sets of back rollers can be independently adjusted.
According to some embodiments of the present invention, the moving driving mechanism includes a driving member provided to the frame, a moving seat movably provided to the frame, the back roller is provided to the moving seat, the driving member is capable of driving the moving seat to move so as to make the back roller far away from or near the coating die head assembly, and the moving seat is configured with a displacement detection assembly;
the coating device further comprises a control module which is respectively and electrically connected with the driving piece and the displacement detection assembly, the displacement detection assembly can detect the displacement of the movable seat relative to the frame or the coating die head assembly and feed back the displacement to the control module, and the control module can control and change the acting force applied by the driving piece to the movable seat.
According to some embodiments of the invention, the driving member acts on the movable seat through a push rod, a pressure sensor is arranged between the push rod and the movable seat, and the pressure sensor is electrically connected with the control module and can detect the acting force condition between the push rod and the movable seat.
According to some embodiments of the invention, the driving element acts on the mobile seat by means of a push rod, which is movably connected to the mobile seat.
According to some embodiments of the invention, the movable seat is provided with a connecting piece, the connecting piece is provided with a connecting cavity, one side of the connecting cavity facing the push rod is of an opening structure, the end part of the push rod can be placed in the connecting cavity, the connecting cavity can limit the push rod to axially exit the connecting cavity, and the end part of the push rod can move in the connecting cavity along the axial direction of the push rod and up and down along the radial direction of the push rod.
According to some embodiments of the invention, a telescopic connecting piece is arranged between the movable seat and the frame, the telescopic direction of the telescopic connecting piece is parallel to the moving direction of the movable seat, two ends of the telescopic connecting piece are respectively hinged to the frame and the movable seat, and the telescopic connecting piece applies a force to the movable seat in a direction away from or close to the coating die head assembly.
According to some embodiments of the invention, the coating die assembly comprises an upper die assembly and a lower die assembly, the lower die assembly comprising a first lower die and a second lower die; wherein,,
the upper die assembly comprises two upper dies respectively corresponding to the first lower die and the second lower die;
or alternatively, the first and second heat exchangers may be,
the upper die assembly is a single die head corresponding to the first lower die and the second lower die.
According to a second aspect of the present invention, a method for controlling a coating apparatus is applied to the coating apparatus, and includes: the displacement detection assembly is used for detecting the displacement of the movable seat relative to the frame or the coating die head assembly and feeding back the detection result to the control module, when the detection result continuously maintains changed data after a preset time period passes, the control module adjusts the acting force applied by the driving piece to the movable seat according to the received detection result of the displacement detection assembly, so that the movable seat moves relative to the coating die head assembly, and the detection result of the displacement detection assembly returns to a preset interval value.
The control method of the coating device has at least the following beneficial effects: the displacement of the movable seat relative to the frame or the coating die head assembly is detected through the displacement detection assembly and fed back to the control module, so that the acting force applied to the movable seat by the adjusting driving piece is controlled, the distance between the back roller and the coating die head assembly can be accurately adjusted and controlled, the coating gap can be kept accurately and constantly, and the production and the application are facilitated.
According to some embodiments of the present invention, the driving element acts on the moving seat through a push rod, a pressure sensor is disposed between the push rod and the moving seat, the pressure sensor is electrically connected with the control module, the pressure sensor detects the acting force between the push rod and the moving seat and feeds back the detection result to the control module, and the control module adjusts the acting force applied by the driving element to the moving seat according to the received detection result of the pressure sensor, and meanwhile judges the surface density of the film material and marks the position where the surface density of the film material exceeds the preset range.
An embodiment of a coater according to the third aspect of the invention comprises a coating device as described in any of the embodiments above.
The coating machine provided by the embodiment of the invention has at least the following beneficial effects: adjustment of the coating gap on both sides of the coating die can be achieved by moving the backing roll and/or the coating die.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a coating die assembly and backing roll according to an embodiment of the invention;
FIG. 2 is a schematic view of a coating apparatus according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a schematic cross-sectional view of a first embodiment of a coating die assembly of the present invention;
FIG. 5 is a schematic cross-sectional view of a second embodiment of a coating die assembly of the present invention;
FIG. 6 is a schematic cross-sectional view of a third embodiment of a coating die assembly of the present invention;
FIG. 7 is a schematic view of a fourth embodiment of a coating die assembly of the present invention;
FIG. 8 is a schematic side view of a fourth embodiment of a coating die assembly of the present invention;
FIG. 9 is a schematic side elevational view of a fourth embodiment of a coating die assembly of the present invention shown in open configuration;
FIG. 10 is a schematic view of a fifth embodiment of a coating die assembly of the present invention;
FIG. 11 is a front view of a fifth embodiment of a coating die assembly of the present invention;
FIG. 12 is a front view of a fifth embodiment of a coating die assembly of the present invention when opened;
fig. 13 is a schematic structural view of a first embodiment of the coater of the present invention;
fig. 14 is a schematic structural diagram of a second embodiment of the coater of the present invention.
Reference numerals:
coating die assembly 100, lip 101, upper die assembly 110, upper die 111, lower die assembly 120, first lower die 121, second lower die 122;
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 illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
In the description of the present invention, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or 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.
In the related art, lips for outputting coating liquid are respectively provided at both ends of a double-sided coating die, two sets of back rollers are respectively arranged at both ends of the coating die and correspond to the positions of the lips, when a substrate bypasses the two sets of back rollers, both sides of the substrate correspond to the two lips respectively, so that the two lips output the coating liquid to both sides of the substrate respectively, thereby realizing double-sided coating operation, and if the coating gap between the coating die and one of the back rollers is adjusted by moving the coating die, the coating gap between the coating die and the other back roller is also affected, so that there is a problem that the coating gap of coating devices at both sides of the coating die is difficult to adjust.
A coating apparatus according to an embodiment of the present invention is described below with reference to fig. 1 to 12.
A coating apparatus according to a specific embodiment of the first aspect of the present invention includes: the coating die head assembly 100 and two groups of back rollers 200, wherein the two groups of back rollers 200 are respectively positioned at two ends of the coating die head assembly 100, at least one group of back rollers 200 is provided with a moving driving mechanism, and the moving driving mechanism can drive the back rollers 200 to move relative to the coating die head assembly 100 so as to adjust the interval between the back rollers 200 and the coating die head assembly 100; wherein, when only one set of back rollers 200 is configured with a moving drive mechanism, the coating die assembly 100 is set to be position adjustable; when both sets of backing rolls 200 are configured with a moving drive mechanism, the coating die assembly 100 is positioned with adjustable position or fixed to the frame 900.
It can be appreciated that when only one set of back rollers 200 is configured with a moving driving mechanism, the position of the other back roller 200 on the frame 900 is fixed, and the coating die head assembly 100 is arranged to be adjustable relative to the frame 900, for example, a displacement driving mechanism is configured, so that when the position of one set of back rollers 200 is adjusted, the position of the coating die head assembly 100 can be adjusted, so that the intervals between the lips 101 at two ends of the coating die head assembly 100 and the two sets of back rollers 200 can be adjusted; when the two sets of back rollers 200 are both configured with the moving driving mechanism, that is, the positions of the two sets of back rollers 200 on the frame 900 can be adjusted, at this time, whether the coating die assembly 100 is disposed to be adjustable with respect to the frame 900 or fixedly disposed on the frame 900, the intervals between the lips 101 at two ends of the coating die assembly 100 and the two sets of back rollers 200 can be adjusted.
By the above-described structural arrangement, the distance between the coating die assembly 100 and the two sets of back rollers 200 can be independently adjusted.
Specifically, as shown in fig. 1 and 2, the coating die assembly 100 is fixed in position on the frame 900, and the two sets of back rollers 200 are each provided with a moving driving mechanism, so that the coating intervals on both sides of the coating die assembly 100 can be adjusted by adjusting the positions of the two sets of back rollers 200.
It is contemplated that in some embodiments of the present invention, the movement driving mechanism includes a driving member 210 disposed on the frame 900, and a moving seat 220 movably disposed on the frame 900, the back roller 200 is disposed on the moving seat 220, the driving member 210 is capable of driving the moving seat 220 to move so as to move the back roller 200 away from or close to the coating die assembly 100, and the moving seat 220 is configured with the displacement detecting assembly 240; the coating device further includes a control module, which is electrically connected to the driving element 210 and the displacement detection assembly 240, wherein the displacement detection assembly 240 can detect the displacement of the moving seat relative to the frame 900 or the coating die assembly 100 and feed back the displacement to the control module, and the control module can control the force applied to the moving seat by the driving element to adjust the interval between the backing roll 200 and the coating die assembly 100 to a preset interval value.
Specifically, as shown in fig. 1 and 2, the displacement detection assembly 240 is configured to detect an actual position of the movable base 220 (or the back roller 200), when in operation, the back roller 200 is rotatably disposed on the movable base 220, the driving force of the driving member 210 acts on the movable base 220, so that the back roller 200 can adjust a gap between the back roller 200 and the coating die assembly 100 according to a distance away from or approaching the coating die assembly 100, and in cooperation with the displacement detection assembly 240, the control module is configured to control a preset gap value disposed in the control module, so that the gap between the back roller 200 and the coating die assembly 100 is stabilized at the preset gap value, when a substrate part area is increased or an error occurs in a certain period due to an output slurry amount of the coating die assembly 100, a pressing force is generated on the back roller 200, so that the back roller 200 moves along a side away from the coating die assembly 100, the coating gap becomes wider than the preset gap value, the displacement detection assembly 240 detects a displacement between the movable base 220 and the coating die assembly, and the displacement detection assembly 240 feeds back the displacement of the movable base 220 to the control module, and the control module can control the movement detection assembly to change the driving member according to the received displacement information of the movable base 220, so that the displacement detection assembly moves the preset gap value is returned to the preset gap value, and the preset gap value is maintained.
It is contemplated that in some embodiments of the present invention, displacement detection assembly 240 may be a displacement sensor or photoelectric sensor or the like for detecting the amount of displacement of movable mount 220 relative to frame 900 or coating die assembly 100.
It is contemplated that in some embodiments of the present invention, the driving member 210 is a servo hydraulic cylinder, and the output pressure can be controlled by a servo control system, and of course, in a specific implementation, the driving member 210 may also be a linear motor, a cylinder, or an electric push rod.
It is contemplated that in some embodiments of the present invention, the control module may be formed of an integrated circuit board, various control units, a display, etc., and as the specific construction of the control module of embodiments of the present invention is known to those of ordinary skill in the art, it is not described in detail herein.
It is conceivable that in some embodiments of the present invention, the driving member 210 acts on the movable seat 220 through the push rod 211, and a pressure sensor 230 is disposed between the push rod 211 and the movable seat 220, and the pressure sensor 230 is electrically connected to the control module and is capable of detecting a force condition between the push rod 211 and the movable seat 220, and controlling the driving force of the driving member 210 according to the force condition in cooperation with feedback of the pressure sensor 230.
Specifically, as shown in fig. 2 and 3, the driving member 210 is a servo hydraulic cylinder, the acting force of the driving member 210 is output through the push rod 211 and acts on the moving seat 220, the pressure sensor 230 is disposed between the push rod 211 and the moving seat 220, and can detect the actual output force of the servo hydraulic cylinder, when the area of the substrate is increased or the slurry output by the coating die assembly 100 is increased due to an error occurring in a certain period, the extrusion force can be generated on the back roller 200, and the pressure sensor 230 can know the reaction force applied by the back roller 200, on one hand, the control module can timely adjust the acting force of the driving member 210 applied to the moving seat 220 according to the information of the back roller 200, so as to be beneficial to keeping the coating gap accurately constant, on the other hand, under the condition that the coating gap is the same and the thickness of the substrate is the same, the surface density of the substrate coating layer can be obtained according to the difference of the reaction force given by the substrate, and understandably, the larger the surface density of the substrate reaction force is larger, so that the surface density information of the substrate coating layer is obtained, and the quality of the substrate layer is convenient to monitor.
In addition, the pressure sensor 230 can also know the driving pressure of the monitoring servo hydraulic cylinder to the push rod in real time, and the actual output pressure of the servo hydraulic cylinder can be regulated more accurately.
It is contemplated that in some embodiments of the present invention, driver 210 acts on movable mount 220 via push rod 211, and push rod 211 is movably coupled to movable mount 220 to eliminate parallelism errors.
Specifically, as shown in fig. 2, the movable seat 220 is mounted on the frame 900 through the cooperation of the sliding rail and the sliding block, and the precision requirement of the coating process is high, so that the coaxiality between the push rod 211 of the driving member 210 and the axial direction of the sliding rail is difficult to ensure in practical application.
It is conceivable that in some embodiments of the present invention, the movable base 220 is provided with a connecting member 221, the connecting member 221 has a connecting cavity 222, a side of the connecting cavity 222 facing the push rod 211 is in an open structure, an end portion of the push rod 211 can be placed in the connecting cavity 222, the connecting cavity 222 can limit the push rod 211 to exit from the connecting cavity 222 along an axial direction thereof, and the end portion of the push rod 211 can move up and down along an axial direction of the push rod 211 and a radial direction of the push rod 211 in the connecting cavity 222, thereby effectively reducing machining errors caused by parallelism (or coaxiality).
As shown in fig. 3, in some embodiments of the present invention, the connecting member 221 has a C-shaped structure to form the connecting cavity 222, the end portion of the push rod 211 is the connecting head 212, the connecting head 212 can be clamped into the connecting cavity 222 from the lateral direction of the connecting cavity 222, the connecting member 221 having the C-shaped structure can limit the push rod 211 to exit from the connecting cavity 222 along the axial direction thereof, and the end portion of the push rod 211 can move up and down along the axial direction of the push rod 211 and along the radial direction of the push rod 211 in the connecting cavity 222, and by the above structure, no rigid connection is formed between the push rod 211 and the movable seat 220, and normal driving of the push rod 211 to the movable seat 220 can be ensured.
Specifically, the opening of the C-shaped structure of the connecting member 221 is smaller than the outer contour of the connecting head 212, so as to limit the passage of the connecting member, the opening of the C-shaped structure of the connecting member 221 is larger than the rod size of the push rod 211, so as to allow the connecting head 212 to move up and down along the axial direction of the push rod 211 in the connecting member 221, the C-shaped structure of the connecting member 221 is larger than the outer contour of the connecting head 212, so as to allow the connecting head 212 to move up and down along the axial direction of the push rod 211 and along the radial direction of the push rod 211 in the connecting member 221, when the push rod 211 is not parallel to the sliding rail, the moving seat 220 can also move normally along the extending direction of the sliding rail, and no extrusion and jamming can occur due to the movement of the moving seat 220 which is not coaxial with the sliding rail, at this time, the control module can detect the actual displacement amount of the sliding of the moving seat 220 according to the displacement detection assembly 240, and under the condition that the push rod 211 is not coaxial with the sliding rail, the pressure to be output by the servo hydraulic cylinder according to the actual displacement amount of the moving seat 220, so as to control the stroke of the fitting of the moving seat 220.
In practical application, besides the above structure, the movable connection between the movable seat 220 and the push rod 211 can be realized by a ball hinge structure or a hook hinge structure, which can be changed according to practical application requirements.
It is conceivable that in some embodiments of the present invention, a telescopic connection is provided between the movable base 220 and the frame 900, the telescopic direction of the telescopic connection is parallel to the moving direction of the movable base 220, and two ends of the telescopic connection are respectively hinged to the frame 900 and the movable base 220, and the telescopic connection applies a force to the movable base 220 in a direction away from or close to the coating die assembly 100, so as to improve the moving stability of the back roller 200.
Specifically, the telescopic connection member is a hydraulic balance cylinder 250, the hydraulic balance cylinder 250 is respectively disposed at the upper and lower parts of the movable seat 220, the driving member 210 is located in the middle of the movable seat 220, and because the push rod 211 and the movable seat 220 can move along the axial direction of the push rod 211, when the substrate passing through the coating gap becomes thinner, the back roller 200 losing the reaction force of the film material will have a trend of suddenly moving towards the substrate direction, the movement is caused by inertia, an uncontrollable acting force to the substrate will be generated, and at this time, the hydraulic balance cylinder 250 can play a role in holding the back roller 200, so as to avoid the unstable sliding of the back roller 200 due to inertia, thereby improving the stability of the back roller 200.
It is contemplated that the telescoping connection may also be a pneumatic balancing cylinder, a gas spring, or the like, and will not be described in detail herein.
As shown in fig. 7 to 12, in some embodiments of the invention, the coating die assembly 100 includes an upper die assembly 110 and a lower die assembly 120, the upper die assembly 110 is disposed on a frame 900 by a lifting mechanism, the lower die assembly 120 includes a first lower die 121 and a second lower die 122, a first discharge slit 131 connected to a lip 101 at one side of the upper die assembly 110 is formed between the first lower die 121 and the upper die assembly 110, a second discharge slit 132 connected to a lip 101 at the other side of the upper die assembly 110 is formed between the second lower die 122 and the upper die assembly 110, and one side of the first lower die 121 and the second lower die 122 offset from the lip 101 is rotatably connected to the upper die assembly 110.
During normal operation, the upper die assembly 110 and the lower die assembly 120 are in a closed state, and paint is output from the lip 101 through the first discharge slit 131 and the second discharge slit 132, when cleaning or maintenance is required, as shown in fig. 9 or 12, the upper die assembly 110 is driven to lift through the lifting mechanism, and the first lower die 121 and the second lower die 122 swing around the rotation joint due to the action of gravity, so that the inner cavity of the coating die assembly 100 is opened, and cleaning or maintenance can be performed on the inner cavity of the coating die assembly 100 without detaching the upper die assembly 110 or the lower die assembly 120, so that cleaning or maintenance is convenient.
The first lower die 121 and the second lower die 122 are rotatably connected to the upper die assembly 110 by a hinge, a rotation shaft mechanism, or the like.
It is conceivable that in some embodiments of the present invention, one end portion of the upper die assembly 110 along the extending direction of the lip 101 is slidably disposed on the frame 900 by a slide rail mechanism, and the slide rail extends in the up-down direction, and the lifting mechanism may be a cylinder mechanism, a hydraulic cylinder mechanism, a motor-driven screw mechanism, or the like, so as to drive the upper die assembly 110 to move up and down.
It is conceivable that in some embodiments of the present invention, one end of the first lower mold 121 in the extending direction of the lip 101 is rotatably connected to the upper mold assembly 110, and one end of the second lower mold 122 in the extending direction of the lip 101 is rotatably connected to the upper mold assembly 110.
Specifically, as shown in fig. 7 to 9, one end of the upper mold assembly 110 in the extending direction of the lip 101 is disposed on the frame 900 by a lifting mechanism, one end of the first lower mold 121 and the second lower mold 122 close to the lifting mechanism is rotatably connected with the upper mold assembly 110, when the upper mold assembly 110 is lifted, the rotating connection ends of the first lower mold 121 and the second lower mold 122 are lifted up along with the upper mold assembly 110, and the other ends of the first lower mold 121 and the second lower mold 122 are maintained at the initial horizontal position due to the dead weight of the first lower mold 121 and the second lower mold 122, so that the first lower mold 121 and the second lower mold 122 are opened relative to the upper mold assembly 110, thereby facilitating the cleaning or maintenance of the die head by an operator.
It is contemplated that in some embodiments of the present invention, the first lower die 121 and the second lower die 122 are rotatably coupled to the upper die assembly 110 at an end remote from the elevating mechanism, and the coating die assembly 100 may be opened when the upper die assembly 110 is raised, which is not described in detail herein.
It is contemplated that in some embodiments of the present invention, the side of the first lower mold 121 opposite the lip 101 is rotatably coupled to the upper mold assembly 110, and the side of the second lower mold 122 opposite the lip 101 is rotatably coupled to the upper mold assembly 110.
Specifically, as shown in fig. 10 to 12, one end of the upper mold assembly 110 in the extending direction of the lip 101 is disposed at the frame 900 by a lifting mechanism, the first lower mold 121 and the second lower mold 122 are located at both sides of the lower side of the upper mold assembly 110, one side of the first lower mold 121 and the second lower mold 122 near the middle of the upper mold assembly 110 is rotatably connected with the middle of the upper mold assembly 110, respectively, when the upper mold assembly 110 is lifted, one side of the first lower mold 121 and the second lower mold 122 near the middle of the upper mold assembly 110 is lifted along with the upper mold assembly 110, and the other side of the first lower mold 121 and the second lower mold 122 is maintained at an initial horizontal position due to the dead weight of the first lower mold 121 and the second lower mold 122, so that the first lower mold 121 and the second lower mold 122 are opened relative to the upper mold assembly 110, and a structure opening to both sides is formed, thereby facilitating the cleaning or maintenance of the mold head by an operator.
It is contemplated that in some embodiments of the present invention, the frame 900 is provided with a carrying platform 901, the first lower mold 121 and the second lower mold 122 are disposed above the carrying platform 901, the carrying platform 901 is used for carrying the non-rising ends/sides of the first lower mold 121 and the second lower mold 122, and a sliding member is disposed between the first lower mold 121 and/or the second lower mold 122 and the carrying platform 901, so as to reduce the resistance of the other ends/sides moving when the first lower mold 121 and the second lower mold 122 are raised single-ended/side.
It is contemplated that in some embodiments of the present invention, the slide is a directional roller corresponding to the movable direction of the first lower die 121 and the second lower die 122.
Specifically, as shown in fig. 7 to 9, the bottoms of the first and second lower molds 121 and 122, which are far from the rotational connection end, are provided with longitudinal pulleys 133, and the longitudinal pulleys 133 are movable in the extending direction of the lips 101 to reduce the swing-open resistance of the first and second lower molds 121 and 122.
Specifically, as shown in fig. 10 to 12, the bottoms of the first and second lower molds 121 and 122 are provided with a lateral pulley 134, and the lateral pulley 134 is movable in a direction perpendicular to the lip 101 to reduce the swing-open resistance of the first and second lower molds 121 and 122.
It is contemplated that the slider may also be a universal roller or a bullseye bearing, etc., not described in detail herein.
It is contemplated that in some embodiments of the present invention, a locking mechanism is provided between the first lower die 121 and the upper die assembly 110, and between the second lower die 122 and the upper die assembly 110, respectively.
Specifically, the locking mechanism can lock the first lower die 121 and the upper die assembly 110, and the second lower die 122 and the upper die assembly 110, so that the lifting mechanism can not only realize the opening and closing of the coating die head assembly 100, but also drive the whole coating die head assembly 100 to lift when the locking mechanism can lock the coating die head assembly 100, so as to adjust the relative position between the coating die head assembly 100 and the back roller, and further adjust the coating gap.
It is contemplated that in some embodiments of the present invention, the upper die assembly 110 includes two upper dies 111 corresponding to the first lower die 121 and the second lower die 122, respectively; alternatively, the upper die assembly 110 is a single die corresponding to the first lower die 121 and the second lower die 122.
Specifically, as shown in fig. 4, the upper die assembly 110 is a single die corresponding to the first lower die 121 and the second lower die 122, and the first lower die 121 and the second lower die 122 may share a set of feeding channels, which may simplify the feeding system.
Specifically, as shown in fig. 6, the upper die assembly 110 includes two upper dies 111 corresponding to the first lower die 121 and the second lower die 122, and two sets of feeding channels are correspondingly configured, so that the lips 101 at two ends of the coating die assembly 100 can output different coatings to meet different use requirements.
It is contemplated that both the upper die assembly 110 and the lower die assembly 120 may be a single die head, as shown in fig. 5, and that the dual feed requirements may be met.
As shown in fig. 6, in some embodiments of the present invention, the upper die assembly 110 is provided with a first feeding channel 112 and a second feeding channel 113, the first feeding channel 112 is connected to the first discharging slot 131, and the second feeding channel 113 is connected to the second discharging slot 132, so as to avoid the problem that the upper die and the lower die cannot be opened or closed due to the pipe problem in the present scheme caused by the existing mode of forming the feeding pipe on the lower die.
The coating device control method according to the embodiment of the second aspect of the present invention is applied to the above-described coating device, and includes: the displacement detection assembly 240 detects the displacement of the movable seat relative to the frame 900 or the coating die assembly 100 and feeds back the detection result to the control module, when the detection result continuously maintains changed data after a preset time period passes, the control module adjusts the acting force applied by the driving member 210 to the movable seat 220 according to the received detection result of the displacement detection assembly 240, so that the movable seat 220 moves relative to the coating die assembly 100, and the detection result of the displacement detection assembly 240 returns to a preset interval value.
It can be understood that the shorter the preset time period, the higher the requirement on the response speed of the control module and the corresponding driver, and the preset time period tends to be 0 when the response speed is fast enough. According to the coating apparatus control method of the embodiment of the invention, the displacement of the movable base 220 relative to the frame 900 or the coating die assembly 100 is detected by the displacement detection assembly 240 and fed back to the control module, so as to control the acting force applied to the movable base 220 by the adjusting driving member 210, which is beneficial to precisely adjusting and controlling the interval distance between the back roller 200 and the coating die assembly 100, thereby keeping the coating gap precisely constant and facilitating the production and application. In practical application, the preset time can be set correspondingly according to practical use requirements.
It is conceivable that in some embodiments of the present invention, the driving member 210 acts on the movable seat 220 through the push rod 211, a pressure sensor 230 is disposed between the push rod 211 and the movable seat 220, the pressure sensor 230 is electrically connected to the control module, the pressure sensor 230 detects the acting force between the push rod 211 and the movable seat 220 and feeds back the detection result to the control module, and the control module adjusts the acting force applied by the driving member 210 to the movable seat 220 according to the received detection result of the pressure sensor 230, and meanwhile determines the surface density of the film material and marks the position where the surface density of the film material exceeds the preset range.
It can be understood that, when the pressure sensor 230 detects the acting force between the push rod 211 and the movable seat 220, when the area of the substrate increases or the slurry output by the coating die assembly 100 increases in a certain period, the extrusion force is generated to the back roller 200, the pressure sensor 230 can learn the reactive force applied to the back roller 200, firstly, the control module can timely adjust the acting force applied to the movable seat 220 by the driving member 210 according to the information of the back roller 200, which is beneficial to keeping the coating gap accurately constant, secondly, under the condition that the coating gap is the same and the substrate thickness is the same, the difference of the reactive force applied to the substrate can be determined to obtain the surface density of the substrate coating layer, specifically, the larger the reactive force of the substrate is, the larger the surface density of the substrate coating layer is, thereby obtaining the surface density information of the substrate coating layer, facilitating the monitoring of the quality thereof, and when the calculated surface density exceeds the preset range, the position of the substrate cannot be marked, so that the subsequent rejection or the subsequent processing can be performed, furthermore, the pressure sensor 230 can also learn the driving pressure of the push rod 211 in real time, which is beneficial to accurately adjusting the actual output pressure of the driving member 210.
According to a third aspect of the present invention, a coater including any of the above embodiments can adjust a coating gap on both sides of a coating die by moving a back roller and/or the coating die.
Specifically, as shown in fig. 13, the coater includes a coating device, a first oven 910, a second oven 920, an unwinding device 930, and a winding device 940, where the substrate is unwound from the unwinding device 930, passes through a coating gap between the right side of the coating die assembly 100 and the back roller 200 when passing through the back roller 200 positioned on the right side of the coating die assembly 100, coats one side of the substrate, then enters the first oven 910, dries the coating, passes through the back roller 200 positioned on the sitting side of the coating die assembly 100 after passing through the first oven 910, enters a coating gap between the left side of the coating die assembly 100 and the back roller 200, coats the other side of the substrate, and finally is wound by the winding device 940 after drying by the second oven 920, thus completing double-sided coating of the substrate.
It is conceivable that in some embodiments of the present invention, as shown in fig. 14, only one post-baking oven 950 may be configured, and the substrate may be dried by the post-baking oven 950 after the double-sided coating is completed, so that one baking oven may be saved.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above 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. Coating device, characterized in that it comprises:
a coating die assembly;
the two groups of back rollers are respectively positioned at two ends of the coating die head assembly, at least one group of back rollers is provided with a movable driving mechanism, and the movable driving mechanism can drive the back rollers to move relative to the coating die head assembly so as to adjust the interval between the back rollers and the coating die head assembly;
wherein,,
when only one set of the back rollers is provided with a moving driving mechanism, the coating die head assembly is arranged to be adjustable in position;
when the two groups of back rollers are provided with the movable driving mechanisms, the coating die head assembly is arranged to be adjustable in position or fixedly arranged on the frame.
2. The coating apparatus of claim 1, wherein:
the movable driving mechanism comprises a driving piece arranged on the frame and a movable seat movably arranged on the frame, the back roller is arranged on the movable seat, the driving piece can drive the movable seat to move so as to enable the back roller to be far away from or close to the coating die head assembly, and the movable seat is provided with a displacement detection assembly;
the coating device further comprises a control module which is respectively and electrically connected with the driving piece and the displacement detection assembly, the displacement detection assembly can detect the displacement of the movable seat relative to the frame or the coating die head assembly and feed back the displacement to the control module, and the control module can control and change the acting force applied by the driving piece to the movable seat.
3. The coating apparatus of claim 2, wherein:
the driving piece acts on the movable seat through the push rod, a pressure sensor is arranged between the push rod and the movable seat, and the pressure sensor is electrically connected with the control module and can detect acting force conditions between the push rod and the movable seat.
4. The coating apparatus of claim 2, wherein:
the driving piece acts on the movable seat through a push rod, and the push rod is movably connected with the movable seat.
5. The coating apparatus of claim 4, wherein:
the movable seat is provided with a connecting piece, the connecting piece is provided with a connecting cavity, one side of the connecting cavity, which faces the push rod, is of an opening structure, the end part of the push rod can be placed in the connecting cavity, the connecting cavity can limit the push rod to axially withdraw from the connecting cavity along the axial direction of the push rod, and the end part of the push rod can move in the connecting cavity along the axial direction of the push rod and up and down along the radial direction of the push rod.
6. The coating apparatus of claim 2, wherein:
a telescopic connecting piece is arranged between the movable seat and the frame, the telescopic direction of the telescopic connecting piece is parallel to the moving direction of the movable seat, and the two ends of the telescopic connecting piece are respectively hinged to the frame and the movable seat, and the telescopic connecting piece applies acting force to the movable seat in the direction away from or close to the coating die head assembly.
7. The coating apparatus of claim 1, wherein:
the coating die head assembly comprises an upper die assembly and a lower die assembly, wherein the lower die assembly comprises a first lower die and a second lower die; wherein,,
the upper die assembly comprises two upper dies respectively corresponding to the first lower die and the second lower die;
or alternatively, the first and second heat exchangers may be,
the upper die assembly is a single die head corresponding to the first lower die and the second lower die.
8. A coating apparatus control method applied to the coating apparatus according to any one of claims 2 or 4 to 6, comprising:
the displacement detection assembly is used for detecting the displacement of the movable seat relative to the frame or the coating die head assembly and feeding back the detection result to the control module, when the detection result continuously maintains changed data after a preset time period passes, the control module adjusts the acting force applied by the driving piece to the movable seat according to the received detection result of the displacement detection assembly, so that the movable seat moves relative to the coating die head assembly, and the detection result of the displacement detection assembly returns to a preset interval value.
9. The coating apparatus control method according to claim 8, characterized by comprising:
the driving piece acts on the movable seat through the push rod, a pressure sensor is arranged between the push rod and the movable seat, the pressure sensor is electrically connected with the control module, the pressure sensor detects the acting force condition between the push rod and the movable seat and feeds back the detection result to the control module, and the control module adjusts the acting force applied by the driving piece to the movable seat according to the received detection result of the pressure sensor, and meanwhile judges the surface density of the film material and marks the position where the surface density of the film material exceeds a preset range.
10. Coating machine, characterized by, include: a coating apparatus as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310336976.5A CN116371677A (en) | 2023-03-30 | 2023-03-30 | Coating device, coating device control method and coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310336976.5A CN116371677A (en) | 2023-03-30 | 2023-03-30 | Coating device, coating device control method and coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116371677A true CN116371677A (en) | 2023-07-04 |
Family
ID=86972612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310336976.5A Pending CN116371677A (en) | 2023-03-30 | 2023-03-30 | Coating device, coating device control method and coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116371677A (en) |
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2023
- 2023-03-30 CN CN202310336976.5A patent/CN116371677A/en active Pending
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