CN114905683A - High-speed precise full-automatic film casting machine for MLCC (multilayer ceramic capacitor) - Google Patents
High-speed precise full-automatic film casting machine for MLCC (multilayer ceramic capacitor) Download PDFInfo
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- CN114905683A CN114905683A CN202210270996.2A CN202210270996A CN114905683A CN 114905683 A CN114905683 A CN 114905683A CN 202210270996 A CN202210270996 A CN 202210270996A CN 114905683 A CN114905683 A CN 114905683A
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- 238000005266 casting Methods 0.000 title claims abstract description 50
- 239000003985 ceramic capacitor Substances 0.000 title claims description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 177
- 238000000576 coating method Methods 0.000 claims abstract description 177
- 239000000463 material Substances 0.000 claims abstract description 130
- 238000001035 drying Methods 0.000 claims abstract description 125
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000006255 coating slurry Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 239000013072 incoming material Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 abstract description 83
- 239000007788 liquid Substances 0.000 abstract description 6
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/24—Calendering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/58—Measuring, controlling or regulating
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to the technical field of full-automatic film casting machines, and provides an MLCC high-speed precise full-automatic film casting machine which comprises a material guide device, a slurry feeding device, a coating device, a drying device and a material collecting device, wherein the feeding device, the coating device, the drying device and the material collecting device are sequentially arranged along the advancing direction of a base material; coating unit includes coating support, thickness adjustment mechanism and coating die head, and thickness adjustment mechanism includes clearance adjustment driving piece and two coating rolls, and the clearance adjustment driving piece is connected with the coating roll, in order to adjust the clearance between two coating rolls, and the coating die head is installed in the coating support, and the coating die head is used for coating the thick liquids to the substrate that the coating roll carried, and thick liquids feedway includes two high-accuracy gear pumps in order to cooperate thickness adjustment mechanism. So, coating unit's clearance adjustment driving piece can adjust the clearance between two coating rolls, and the technical problem that current MLCC film casting machine is difficult to accurate control MLCC film thickness has been solved to the thickness of accurate control substrate.
Description
Technical Field
The invention relates to the technical field of full-automatic film casting machines, in particular to an MLCC high-speed precise full-automatic film casting machine.
Background
A Multi-layer ceramic capacitor (MLCC), called as monolithic capacitor for short, is formed by overlapping ceramic dielectric films with printed electrodes (inner electrodes) in a staggered manner, forming a ceramic chip through one-time high-temperature sintering, and sealing metal layers (outer electrodes) at two ends of the chip to form a monolithic structure, which is also called as monolithic capacitor.
With the improvement of the reliability and the integration of the multilayer chip ceramic capacitor product, the use range of the multilayer chip ceramic capacitor product is wider and wider, and the multilayer chip ceramic capacitor product is widely applied to various military and civil electronic complete machines and electronic equipment, such as a program controlled switch, an IT product (a mobile phone, a personal computer, a digital television and the like), a memory module, a tuner, military equipment, medical equipment, an aircraft, an automobile, a precise testing instrument, radar communication and the like.
In recent years, for the miniaturization of portable communication devices such as smartphones, tablet computers, notebook computers, smart televisions, and the like, and the high performance of electronic devices, the film sheets forming the MLCC are laminated so as to have a thickness of 1.5 μm or less, which is an ultra-thin film. Different products have different requirements on the thickness of the MLCC film sheet.
However, it is difficult to precisely control the thickness of the MLCC film using the conventional MLCC film casting machine.
Disclosure of Invention
The invention aims to provide an MLCC high-speed precise full-automatic film casting machine, and aims to solve the technical problem that the thickness of an MLCC film is difficult to accurately control in the conventional MLCC film casting machine.
In order to achieve the purpose, the invention adopts the technical scheme that: a high-speed precise full-automatic film casting machine for MLCC (multilayer ceramic capacitor) is used for coating slurry on the surface of a base material and comprises a material guide device, and a feeding device, a coating device, a drying device and a material collecting device which are sequentially arranged along the advancing direction of the base material;
the material guide devices are respectively arranged between the feeding device and the coating device, between the coating device and the drying device and between the drying device and the material collecting device;
the feeding device is used for placing the material roll to be processed and releasing the base material to be processed in the material roll to be processed;
the coating device comprises a coating support, a thickness adjusting mechanism and a coating die head, wherein the thickness adjusting mechanism comprises a gap adjusting driving piece arranged on the coating support and two coating rollers which are rotatably arranged on the coating support and are arranged in parallel, the gap adjusting driving piece is connected with the coating rollers to adjust the gap between the two coating rollers, the coating die head is arranged on the coating support, and the coating die head is used for coating slurry on the base material conveyed by the coating rollers;
the drying device is used for drying the base material coated with the slurry;
the material collecting device is used for winding the dried base material into a finished material roll.
The MLCC high-speed precise full-automatic film casting machine provided by the invention has the beneficial effects that: the guide device is used for guiding the base material to pass through the feeding device in sequence, the coating device, the drying device and the device that gathers materials, the clearance between two coating rolls can be adjusted to coating device's clearance adjustment driving piece, the thickness of accurate control base material, the coating die head coats the thick liquids to the base material through the coating roll, the drying device dries the base material that has coated the thick liquids, the base material coiling of device after will drying gathers materials, the technical problem that current MLCC film casting machine is difficult with accurate control MLCC film thickness has been solved, thereby the precision of base material thickness has been improved, can be suitable for the base material curtain coating production that thickness is between 1 mu m to 12 mu m.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the embodiments or drawings used in the prior art description, and obviously, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic front view of an MLCC high-speed precision full-automatic film casting machine provided in an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of the dust box of FIG. 1 after the door of the box is opened;
fig. 3 is a schematic structural view of a coating device of a casting machine in an embodiment of the present application;
FIG. 4 is a schematic side view of the interior of the coating apparatus of FIG. 3;
fig. 5 is a schematic perspective view of a material collecting device provided in an embodiment of the present application;
FIG. 6 is a schematic perspective view of a pressing mechanism of the material collecting device provided in the embodiments of the present application;
fig. 7 is a schematic perspective view of a first guiding mechanism provided in an embodiment of the present application;
fig. 8 is a schematic perspective view of the idler roller oven provided in the embodiment of the present application with a door removed;
fig. 9 is a schematic longitudinal section of a first oven cavity of a carrier roller oven provided in an embodiment of the present application;
FIG. 10 is a schematic perspective view of a first plenum provided in an embodiment of the present application;
FIG. 11 is a schematic perspective view of a levitation oven provided in an embodiment of the present application with a door removed;
FIG. 12 is a schematic longitudinal sectional view of a second oven cavity of a suspension oven provided in an embodiment of the present application;
fig. 13 is a schematic perspective view of a cutting device according to an embodiment of the present application;
FIG. 14 is a cross-sectional view of the cutting device of FIG. 13;
fig. 15 is a schematic structural view of a slurry supply device of the casting machine in this embodiment.
Wherein, in the figures, the respective reference numerals:
1. a coil to be processed; 2. finished material rolls; x, the advancing direction of the base material;
10. a feeding device;
20. a material guiding device; 21. a first material guiding assembly; 22. a second material guiding assembly; 23. a third material guiding component; 24. a fourth material guiding assembly; 211. a guide bracket; 212. a guide roller; 213. a guide roller drive mechanism; 2121. A roller section; 2122. a rotating shaft part;
30. a coating device; 31. coating the stent; 32. a thickness adjusting mechanism; 321. a clearance adjustment drive; 322. A coating roll; 323. a position sensor; 33. a coating die head; 34. a material collecting disc; 35. a slurry supply device; 351. a material box; 352. a gear pump; 353. pushing a cart; 354. a discharge pipe;
40. a drying device; 41. a carrier roller oven; 42. suspending the oven; 43. a heater; 44. a fan; 411. A first case; 412. a first drying tunnel; 414. a first air chamber; 4101. a first baking chamber; 4111. a first separator; 4131. a first fan housing; 4132. a second fan housing; 4133. a third fan housing; 4134. a fourth wind cowl; 4141. a first tuyere; 4142/4232, a plenum housing; 4143. an air deflector; 4111a and a first air outlet; 4111b, a first air return opening; 4111c, a second air outlet; 4111d, a second air return inlet; 41410. a third air outlet; 4141a, tuyere housing; 4141b, idler; 41420. an air inlet; 421. a second case; 422. a second drying tunnel; 423. a second air chamber; 4201. a second oven cavity; 4211. a second separator; 4231. a second tuyere; 4211a, a fourth air outlet; 4211b, a third return air inlet;
50. a material collecting device; 52. an inflatable roller; 54. a door assembly; 55. a hold-down mechanism; 56. a first rotation driving mechanism; 57. a turning roll; 511. a turntable; 512. a support plate; 513. a supporting seat; 531. a first rotating shaft; 551. a pressure roller; 552. a second rotating shaft; 553. a connecting arm; 554. a link arm drive;
60. a dust-proof device; 61. a dust-proof box; 62. a pressurization mechanism;
70. a control device;
81. a first cutting device; 82. a second cutting device; 811. a cutter; 812. a tension roller; 813. swinging arms; 814. a positioning roller; 815. a swing arm drive mechanism; 816. a cutter driving mechanism; 817. a registration roller drive mechanism; 818. a third rotation driving mechanism;
90. and (4) a detection device.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships illustrated in the drawings, are used for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral with one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in interactive relationship with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and fig. 2, the MLCC high-speed precise full-automatic film casting machine provided in this embodiment is used for coating slurry on the surface of a substrate, and includes a material guiding device 20, and a feeding device 10, a coating device 30, a drying device 40, and a material collecting device 50, which are sequentially arranged along the advancing direction of the substrate.
The feeding device 10 is used for placing the coil 1 to be processed and releasing the substrate to be processed in the coil 1 to be processed.
Referring to fig. 3 and 4, the coating apparatus 30 includes a coating support 31, a thickness adjusting mechanism 32 and a coating die 33, the thickness adjusting mechanism 32 includes a gap adjusting driving member 321 mounted on the coating support 31 and two coating rollers 322 rotatably mounted on the coating support 31 and arranged in parallel, the gap adjusting driving member 321 is connected to the coating rollers 322 to adjust a gap between the two coating rollers 322, the coating die 33 is mounted on the coating support 31, and the coating die 33 is used for coating the substrate transported by the coating rollers 322 with the slurry.
The drying device 40 is used to dry the substrate coated with the slurry. The collecting device 50 is used for winding the dried substrate into the finished material roll 2. The material guiding devices 20 are respectively arranged between the feeding device 10 and the coating device 30, between the coating device 30 and the drying device 40, and between the drying device 40 and the material collecting device 50.
Specifically, referring to fig. 2, the material guiding device 20 includes a first material guiding assembly 21, a second material guiding assembly 22 and a third material guiding assembly 23. Wherein, the first material guiding assembly 21 is located between the feeding device 10 and the coating device 30, and is used for guiding the substrate to be processed drawn from the feeding device 10 into the coating device 30, the second material guiding assembly 22 is located between the coating device 30 and the drying device 40, and is used for guiding the substrate coated with the slurry drawn from the coating device 30 into the drying device 40, and the third material guiding assembly 23 is located between the drying device 40 and the collecting device 50, and is used for guiding the finished product drawn from the drying device 40 into the collecting device 50.
The application provides a high-speed accurate full-automatic film casting machine of MLCC, guide device 20 is used for guiding the base material to pass through material feeding unit 10 in proper order, coating device 30, drying device 40 and collection device 50, the clearance between two coating rolls 322 can be adjusted to coating device 30's clearance adjustment driving piece 321, the thickness of accurate control base material, coating die head 33 coats the thick liquids to the base material through coating roll 322, drying device 40 dries the base material that has the thick liquids, the base material coiling of collection device 50 after will drying is the lapping, the technical problem that current MLCC film casting machine is difficult to accurate control MLCC film thickness has been solved, thereby the precision of base material thickness has been improved, can be applicable to the base material curtain coating production that thickness is between 1 mu m to 12 mu m.
Optionally, referring to fig. 5 and fig. 6, as a specific embodiment of the casting machine provided by the present application, the feeding device 10 and the collecting device 50 each include a rotary table 511, an inflatable roller 52, a rotary table driving mechanism and an inflatable roller driving mechanism, wherein two stations are disposed on the rotary table 511, one inflatable roller 52 is disposed on each station, the inflatable roller 52 is vertically disposed and rotatably connected to the rotary table 511, the rotary table driving mechanism is drivingly connected to the rotary table 511 for driving the rotary table 511 to rotate to realize position exchange of the two stations, the inflatable roller driving mechanism is drivingly connected to the inflatable roller 52 for driving the inflatable roller 52 to rotate, so that the casting machine can realize uninterrupted production, when one station of the feeding device 10 discharges, the other station can perform feeding (mount a new roll 1 to be processed on the inflatable roller 52), while one of the stations on the collecting device 50 is receiving material, the other station can be discharging (discharging the finished material roll 2 from the inflatable roller 52).
It is understood that the term "driving mechanism" or "driving member" in this application is a driving mechanism commonly used in the mechanical field, and may include a motor, a synchronous wheel, a synchronous belt, or a motor and a gear set, and the connection relationship between the components is also the connection relationship that can be implemented to drive the driven member (the rotary table 511, the inflatable roller 52, etc.), and is not described herein again.
Further, with continued reference to fig. 5 and 6, the feeder 10 and collector 50 further include a support plate 512, a support base 513 and a door assembly 54, wherein, the supporting seat 513 is arranged opposite to the rotating disk 511 at intervals, the supporting plate 512 is arranged between the rotating disk 511 and the supporting seat 513, the first rotating shaft 531 is arranged in the center of the rotating disc 511, the rotating disc driving mechanism drives the rotating disc 511 to rotate through the first rotating shaft 531, one end of the first rotating shaft 531 passes through the supporting plate 512 and then is rotatably connected with the supporting seat 513, the inflatable roller 52 is parallel to the first rotating shaft 531, one side part of the door assembly 54 can be rotatably connected on the supporting plate 512, the other side part of the door assembly 54 can abut against one end of the inflatable roller 52 close to the supporting seat 513, the device is used for preventing the material roll 1 to be processed or the finished material roll 2 from accidentally separating from the inflatable roller 52, and can support the inflatable roller 52 to ensure that the inflatable roller 52 is straight.
The difference between the feeding device 10 and the collecting device 50 is that the collecting device 50 further includes two pressing mechanisms 55, and the pressing mechanisms 55 are correspondingly matched with the inflatable rollers 52 one by one. The pressing mechanism 55 comprises a pressing roller 551, a second rotating shaft 552, a connecting arm 553 and a connecting arm driver 554, wherein two ends of the second rotating shaft 552 are respectively rotatably connected to the turntable 511 and the supporting plate 512, one end of the connecting arm 553 is fixedly connected to the second rotating shaft 552, the other end of the connecting arm 553 is rotatably connected to the rotating shaft of the pressing roller 551, and the connecting arm driver 554 is arranged on the turntable 511 or the supporting plate 512 and is in driving connection with the connecting arm 553 for driving the connecting arm 553 to swing around the second rotating shaft 552 so as to drive the pressing roller 551 to be close to or far away from the inflatable roller 52. Specifically, two ends of the second rotating shaft 552 are respectively rotatably connected with the rotating disc 511 and the supporting plate 512, the number of the connecting arms 553 is two, the two connecting arms 553 are arranged at intervals, one end of each connecting arm 553 is fixedly sleeved on the second rotating shaft 552, two ends of the pressing roller 551 are respectively rotatably connected with the ends of the two connecting arms 553 far away from the second rotating shaft 552, the connecting arm driving part 554 is an air cylinder or an electric cylinder and the like and is in driving connection with one of the connecting arms 553, if the connecting arm driving part 554 is installed on the rotating disc 511, the connecting arm driving part 554 is in driving connection with the connecting arm 553 arranged close to the rotating disc 511, and if the connecting arm driving part 554 is installed on the supporting plate 512, the connecting arm driving part 554 is in driving connection with the connecting arm 553 arranged close to the supporting plate 512; when the connecting arm driving part 554 is started, the connecting arm 553 drives the pressing roller 551 to swing around the second rotating shaft 552; in the material receiving process, the connecting arm driving part 554 drives the pressing roller 551 to abut against the finished product roll 2 through the connecting arm 553, and along with the increase of the thickness of the finished product roll 2, the finished product roll 2 pushes the pressing roller 551 to displace towards the direction away from the air inflation roller 52, so that the material wound on the air inflation roller 52 can not be separated from the finished product roll 2 in the material receiving process.
Further, referring to fig. 6, a first rotation driving mechanism 56 is disposed at one end of the pressing roller 551, and the first rotation driving mechanism 56 includes an air blowing member and a wind wheel, wherein the wind wheel is fixedly sleeved on a rotating shaft of the pressing roller 551, and the air blowing member is in driving connection with the wind wheel and is used for blowing air to the wind wheel to drive the tangential speed of the pressing roller 551 to be consistent with the advancing speed of the base material, so as to reduce rolling friction between the pressing roller 551 and the base material and greatly reduce the resistance of base material conveying.
Alternatively, referring back to fig. 2, as an embodiment of the casting machine provided by the present application, the first material guiding assembly 21, the second material guiding assembly 22 and the third material guiding assembly 23 have different structures (different shapes and/or numbers of the assemblies) due to different positions of the first material guiding assembly 21, the second material guiding assembly 22 and the third material guiding assembly 23 in the casting machine.
In the present embodiment, the first material guiding assembly 21 is taken as an example for explanation. Referring to fig. 7, the first material guiding assembly 21 includes a guiding bracket 211, a guiding roller 212 and a guiding roller driving mechanism 213, wherein the guiding roller 212 includes a roller portion 2121 and a rotating shaft portion 2122, the rotating shaft portion 2122 is rotatably connected to the guiding bracket 211, the roller portion 2121 is sleeved on the rotating shaft portion 2122, the roller portion 2121 can rotate around the rotating shaft portion 2122 under the driving of the substrate, and the guiding roller driving mechanism 213 is drivingly connected to the rotating shaft portion 2122 for driving the rotating shaft portion 2122 to rotate to drive the roller portion 2121 to rotate around the axis of the rotating shaft portion 2122; when the conveying speed of the substrate is increased, the friction force between the substrate and the roller part 2121 drives the rotation speed of the roller part 2121 to increase, so that the rotation speed of the roller part 2121 is asynchronous with the rotation speed of the rotating shaft part 2122, and at this time, the friction force between the rotating shaft part 2122 and the roller part 2121 gives a reverse acting force to the roller part 2121, so that the speed of the roller part 2121 is reduced, the speed of the substrate is reduced, and the substrate can be conveyed at a constant speed; when the conveying speed of the substrate is slowed, the friction between the substrate and the roller part 2121 will drive the rotation speed of the roller part 2121 to decrease, so that the rotation speed of the roller part 2121 is not synchronous with the rotation speed of the rotation shaft part 2122, and at this time, the friction between the rotation shaft part 2122 and the roller part 2121 will give a positive acting force to the roller part 2121, so that the roller part 2121 and the rotation shaft part 2122 rotate synchronously, thereby driving the substrate with the slowed speed to accelerate, and the substrate is always conveyed at a constant speed. It is understood that the rotation speed of the rotation shaft portion 2122 is in accordance with the preset conveyance speed of the substrate by the guide roller driving mechanism 213.
The specific structure of the coating device 30 is described below.
In one embodiment, referring to fig. 3 and 4, the thickness adjusting mechanism 32 further includes a position sensor 323 mounted on the coating frame 31, and the position sensor 323 is used to detect the gap between the two coating rollers 322. The gap between the coating rollers 322 can be detected more accurately by the position sensor 323, and the thickness of the substrate can be controlled more accurately.
Alternatively, the position sensor 323 is a contact position sensor.
Specifically, each end of each coating roller 322 is associated with a position sensor 323, and the position sensor 323 is used to detect the position of the end of the associated coating roller 322 relative to the coating stand 31. In other words, the number of the position sensors 323 is four, and each two position sensors 323 respectively detect the position of the end portions of the same coating roller 322 relative to the coating support 31, so that the coating support 31 is more accurately used as a measurement object due to the fixed position of the coating support 31, and further, the accurate gap between the two coating rollers 322 is obtained through conversion. In addition, by detecting the positions of the two ends of the coating roller 322, the two coating rollers 322 can be kept in accurate parallel, the gap between the two coating rollers 322 is equal everywhere, and the coating thickness of the base material is more uniform.
Specifically, each end of each coating roller 322 corresponds to a gap adjustment drive 321, and the gap adjustment drive 321 is used for adjusting the position of the end of the corresponding coating roller 322 relative to the coating support 31. In other words, the number of the gap adjusting drivers 321 is four, and the positions of the end portions of the two ends of the same coating roller 322 are respectively adjusted by every two gap adjusting drivers 321, so that the two coating rollers 322 can be accurately controlled to be parallel to each other, and the gap between the two coating rollers 322 can be accurately controlled.
Optionally, two coating rollers 322 are disposed up and down, the gap adjusting driving member 321 is located on one side of the coating rollers 322 far away from the incoming material, and the four gap adjusting driving members 321 are disposed up and down and located at one end of the coating rollers 322. In other words, the two gap adjusting drives 321 adjust one ends of the two coating rollers 322 in a one-to-one correspondence, respectively. Two other gap adjusting drivers 321 are provided up and down and located at the other end of the coating roller 322. Each gap adjusting driving member 321 adjusts the corresponding end of the corresponding coating roll 322 to move up and down through a transmission mechanism, so as to precisely adjust each end of each coating roll 322, so that the two coating rolls 322 are parallel to each other, and the gap between the two coating rolls 322 is precisely controlled.
It will be appreciated that the transmission mechanism may alternatively be a rack and pinion transmission, a link transmission, or the like. For example, the output shaft of the gap adjusting driving member 321 is connected with a gear, the end of the coating roller 322 is connected with a vertically arranged rack, and the gear is meshed with the rack, so that the rack and the end of the coating roller 322 are driven to move up and down.
Alternatively, the coating die 33 is disposed in parallel with the coating roll 322. The coating die 33 is positioned between two sets of gap adjustment drives 321.
In one embodiment, the coating die 33 is slidably mounted on the side of the coating roll 322 away from the incoming material, and the coating die 33 slides toward the coating roll 322 when the position sensor 323 detects that the gap between the two coating rolls 322 corresponds to the predetermined gap. In other words, when the position sensor 323 detects that the gap of the coating roller 322 corresponds to the preset gap, the coating die 33 slides to the coating roller 322 to coat the substrate passing through the coating roller 322. When the gap of the coating roller 322 is not adjusted in place, the coating die head 33 is not close to the coating roller 322, so that the waste of the substrate and the slurry caused by coating under the condition that the thickness of the substrate does not reach the standard is avoided.
Alternatively, the coating die 33 is slidably mounted to the coating holder 31 by a driving mechanism.
Specifically, the coating die 33 is composed of an upper die, a lower die, and a spacer provided between the upper die and the lower die, the spacer being provided to form a coating slit having a discharge port on one side between the upper die and the lower die, and the slurry is extruded through the coating slit toward the discharge port to perform a coating operation.
In one embodiment, referring to fig. 3, the coating device 30 further includes a collecting tray 34 mounted on the coating support 31, the collecting tray 34 is located below the coating die 33 for receiving and recovering the dropped slurry.
In an embodiment, referring to fig. 3 and fig. 15, the casting machine further includes a slurry supply device 35, and the slurry supply device 35 is used for supplying slurry to the coating die 33. The slurry feeding device 35 comprises a tank 351 and a gear pump 352. The hopper 351 is used to store slurry, the hopper 351 is connected to an outlet pipe 354, and the outlet pipe 354 is used to connect with the coating die 33 to provide slurry to the coating die 33. Gear pump 352 is used to drive the flow of slurry from the hopper 351 to the coating die 33.
Specifically, gear pump 352 is a high precision gear pump. The outlet of the high-precision gear pump is provided with a pressure sensor, and the pressure value measured dynamically is converted into an electric signal and transmitted to the frequency converter, so that the pump always works according to a set pressure point, and the stable and uniform slurry feeding is ensured.
Alternatively, the number of gear pumps 352 is two, wherein one gear pump 352 is a 6.25cc high precision gear pump and the other gear pump 352 is a 10cc high precision gear pump.
Specifically, the slurry supply device 36 is movably provided so as to be movable to the side of the coating device 30, and supplies the slurry to the coating die 33. For example, the slurry supply 36 further includes a cart 353, and the bin 351 and the gear pump 352 are each mounted to the cart 353.
The specific structure of the drying device 40 will be described below.
In one embodiment, referring to fig. 8 and 11, the drying device 40 includes a carrier roller oven 41 and a suspension oven 42, the carrier roller oven 41 is used for pre-drying the substrate coated with the slurry, so that a part of water in the slurry is evaporated, and the slurry is prevented from flowing on the surface of the substrate, the suspension oven 42 is used for rapidly drying the substrate, so that the slurry is cured on the surface of the substrate, and the carrier roller oven 41 and the suspension oven 42 are sequentially arranged along the advancing direction of the substrate and are communicated with each other.
Specifically, referring to fig. 8 to 10, the number of the idler ovens 41 is at least three, the number of the suspension ovens 42 is at least two, the at least three idler ovens 41 are continuously arranged near the second material guiding assembly 22, and the at least two suspension ovens 42 are continuously arranged near the last idler oven 41, so that the pre-drying and quick-drying processes of the base material can be ensured, and the difficulty in the production and processing of the idler ovens 41 and the suspension ovens 42 can be reduced. It will be appreciated that the longer the length of the oven, the more difficult the production process.
Specifically, referring to fig. 8 to 10, the roller oven 41 includes a first box 411, a first drying tunnel 412 and an airflow adjusting component, the first box 411 includes a first partition 4111 capable of dividing an inner cavity thereof into a first drying chamber 4101 and a first hot air circulation chamber, the first drying tunnel 412 penetrates through the first drying chamber 4101 for the substrate to pass through, the first partition 4111 is provided with a first air outlet 4111a and a first air return 4111b, the first air outlet 4111a is disposed near one side of an outlet of the first drying tunnel 412, the first air return 4111b is disposed near one side of an inlet of the first drying tunnel 412, the airflow adjusting component includes a first fan housing 4131, a second fan housing 4132 and a third fan housing 4133, the first fan housing 4131, the second fan housing 4132 and the third fan housing 4133 are disposed in the first drying chamber 4101 and located right above the first drying tunnel 412, and the first fan housing 4131 covers the first air outlet 4111a and the second fan housing 4132, the third fan housing 4133 is disposed between the first fan housing 4131 and the second fan housing 4132, a first ventilation hole is respectively formed in a side wall of the first fan housing 4131 facing the third fan housing 4133, a side wall of the second fan housing 4132 facing the third fan housing 4133, a side wall of the third fan housing 4133 facing the first fan housing 4131, a side wall of the third fan housing 4133 facing the second fan housing 4132, and a top wall of the third fan housing 4133 away from the first drying tunnel 412, and an opening is formed in a bottom of the third fan housing 4133.
Specifically, the first drying tunnel 412 is a virtual passageway through which the substrate passes and which horizontally passes through the first drying chamber 4101, and is communicated with the dust box 61 of the wrapping and coating device 30, and an inlet and an outlet of the first drying tunnel 412 are opened on two opposite side walls of the first box 411; the first partition 4111 is vertically arranged and parallel to the first drying tunnel 412; the first ventilation holes are respectively arranged on the side wall of the first fan housing 4131 facing the third fan housing 4133, the side wall of the second fan housing 4132 facing the third fan housing 4133, the side wall of the third fan housing 4133 facing the first fan housing 4131, the side wall of the third fan housing 4133 facing the second fan housing 4132, and the top wall of the third fan housing 4133 away from the first drying tunnel 412 in a matrix manner; in the process that the substrate passes through the first drying channel 412, hot air is continuously generated in the first hot air circulation chamber, then the hot air is blown out from the first air outlet 4111a, then the hot air enters the first drying chamber 4101 through the first air penetration hole of the first fan housing 4131, then the hot air entering the first drying chamber 4101 passes through the third fan housing 4133 through the first air penetration hole, is blown to the top surface of the substrate, then part of the hot air passing through the top surface of the substrate enters the second fan housing 4132 through the first air penetration hole, and finally returns to the first hot air circulation chamber from the first air return hole 4111 b; therefore, the hot air flows reversely (in the direction opposite to the advancing direction X of the substrate), which is beneficial to promoting the evaporation of the moisture in the slurry, and the inertia and stability of the hot air are adjusted by the cooperation of the first fan housing 4131, the second fan housing 4132 and the third fan housing 4133, so that the hot air flows through the top surface of the substrate uniformly, which is beneficial to ensuring the uniformity of the coating of the substrate.
Further, the first partition plate 4111 is further provided with a second air outlet 4111c, and the second air outlet 4111c is disposed near one side of the outlet of the first drying tunnel 412; the carrier roller oven 41 further comprises a first air chamber 414, the first air chamber 414 is arranged in the first drying cavity 4101 and is located right below the first drying channel 412, the first air chamber 414 covers the second air outlet 4111c, a plurality of first air nozzles 4141 are arranged on the top wall of the first air chamber 414, the plurality of first air nozzles 4141 are arranged at intervals along the advancing direction of the substrate, each first air nozzle 4141 comprises an air nozzle housing 4141a and a carrier roller 4141b which is rotatably connected to the air nozzle housing 4141a, two third air outlets 41410 are arranged on the top wall of the air nozzle housing 4141a, the two third air outlets 41410 are located on two opposite radial sides of the carrier roller 4141b and face the direction away from the carrier roller 4141b respectively, and the axial direction of the 4141b is perpendicular to the advancing direction of the substrate.
Specifically, the first plenum 414 further includes a plenum housing 4142, an air inlet 41420 is formed in a side wall of the plenum housing 4142, the air inlet 41420 is connected to the second air outlet 4111c, a plurality of first nozzles 4141 are spaced apart from each other in the forward direction X of the substrate on a top wall of the plenum housing 4142, the nozzle housing 4141a is communicated with the plenum housing 4142, and the highest point of the idler roller 4141b is higher than the highest point of the nozzle housing 4141a by a predetermined distance. While the substrate passes through the first drying tunnel 412, the substrate sequentially passes through the plurality of first air nozzles 4141, and while the substrate passes through the first air nozzles 4141, the substrate contacts the top of the idle roller 4141b, the idle roller 4141b rotates as the substrate advances, and the hot air introduced into the plenum housing 4142 from the second air outlet 4111c is continuously blown out toward the advancing direction X of the substrate and the direction opposite to the advancing direction X of the substrate through the two third air outlets 41410 of the first air nozzles 4141 such that the flow direction of the hot air is substantially parallel to the substrate, and such that an air cushion is formed between portions of the substrate located at both radial sides of the idle roller 4141b and the top wall of the plenum housing 4141a, the air cushion being capable of suspending the substrate at a height from the top wall of the plenum housing 4141a, the height being equal to a predetermined distance, thereby maintaining the substrate in a horizontal state all the time when passing through the first air nozzles 4141, the thickness uniformity of the slurry on the base material is not influenced by the flowing of the slurry, and the uniformity of the coating of the base material is favorably ensured.
Further, the plenum housing 4142 of the first plenum 414 has a larger volume end and a smaller volume end, an air inlet 41420 is formed in a side wall of the larger volume end, a plurality of air guide plates 4143 are arranged in the plenum housing 4142, the plurality of air guide plates 4143 form at least one air guide channel together, one end of the air guide channel faces the air inlet 41420, and the other end of the air guide channel faces the smaller volume end. The hot air generated by the first hot air circulation chamber enters the inner cavity of the air chamber housing 4142 from the air inlet 41420, is guided to the first air nozzle 4141 through the air guide channel and the inner cavity of the air chamber housing 4142, and is blown to the base material passing through the first drying channel 412 from the third air outlet 41410 of the first air nozzle 4141, so that the hot air entering the air chamber housing 4142 from the air inlet 41420 provided on the side wall of the end with the larger volume uniformly flows to each first air nozzle 4141 through the cooperation of the air guide channel formed by the plurality of air guide plates 4143 by designing the two ends of the air chamber housing 4142 into the end with the larger volume and the end with the smaller volume, which is beneficial to ensuring the drying effect of the carrier roller drying oven 41.
It is understood that the term "end of greater volume" refers to an end of greater volume as compared to the "end of lesser volume" and the term "end of greater volume" refers to an end of lesser volume as compared to the "end of greater volume".
Further, the first partition plate 4111 is further provided with a second air return port 4111d, and the second air return port 4111d is disposed near one side of the inlet of the first drying tunnel 412; meanwhile, the air flow adjusting assembly further includes a fourth hood 4134, the fourth hood 4134 is positioned below the first air chamber 414 and covers the second return air port 4111d, and the sides of the fourth hood 4134 adjacent to the inlet of the first drying tunnel 412 and the outlet of the first drying tunnel 412 are opened, respectively. That is, a portion of the hot air flowing out of the first hood 4131 and a portion of the hot air flowing out of the first tuyere 4141 may finally enter the fourth hood 4134 through two openings of the fourth hood 4134 on a side portion near the inlet of the first drying tunnel 412 and a side portion near the outlet of the first drying tunnel 412, and then return to the first hot air circulation chamber through the second return port 4111 d. Since the two openings of the fourth hood 4134 face the inlet side of the first drying tunnel 412 and the outlet side of the first drying tunnel 412, but do not face upward, the flow path of the hot air is longer, which is beneficial to reducing the fluctuation of the airflow in the first drying chamber 4101, and effectively improving the stability of the airflow in the first drying chamber 4101.
In this embodiment, referring to fig. 11 and 12, the levitation oven 42 includes a second box 421, a second drying tunnel 422 and two second air chambers 423, the second drying tunnel 422 penetrates through an inner cavity of the second box 421 for the substrate to pass through, the two second air chambers 423 are accommodated in the inner cavity of the second box 421 and are respectively located at upper and lower sides of the second drying tunnel 422, a plurality of second air nozzles 4231 are disposed on a wall of each second air chamber 423 facing the second drying tunnel 422, the plurality of second air nozzles 4231 are spaced along an advancing direction X of the substrate, and the second air chambers 423 further include a chamber housing 4142.
Specifically, the second drying tunnel 422 is a virtual passageway through which the substrate passes and which horizontally penetrates the inner cavity of the second box 421, and the inlet and the outlet of the second drying tunnel 422 are opened on two opposite side walls of the second box 421 and are communicated with the first drying tunnel 412; the plenum housing 4142 of the second plenum 423 has the same structure as the plenum housing 4142 of the first plenum 414; the second air nozzle 4231 is fixedly installed on a wall of the plenum housing 4142 facing the second drying tunnel 422, and a fifth air outlet is opened at an end of the second air nozzle 4231 facing the second drying tunnel 422. Since the structure of the plenum housing 4142 of the second plenum 423 is the same as that of the plenum housing 4142 of the first plenum 414, the hot air introduced into the plenum housing 4142 can uniformly flow to the respective second nozzles 4231, which is advantageous to ensure the drying effect of the levitation oven 42.
Further, the second air nozzles 4231 of one of the second air chambers 423 are arranged in a staggered manner with respect to the second air nozzles 4231 of the other second air chamber 423, that is, the plurality of second air nozzles 4231 of the second air chamber 423 located above the second drying tunnel 422 are staggered with the plurality of second air nozzles 4231 of the second air chamber 423 located below the second drying tunnel 422, so that the hot air in the second drying tunnel 422 is more uniform, the supporting force of the air cushion formed between the hot air blown out from the second air nozzles 4231 and the substrate is equalized, the substrate keeps running smoothly along the center line of the second drying tunnel 422, and the substrate is prevented from being scratched by the second air nozzles 4231 to cause damage.
Further, the second box 421 includes a second partition 4211, the second partition 4211 can divide the inner cavity of the second box 421 into a second oven cavity 4201 and a second hot air circulation cavity, the second drying tunnel 422 extends through the second oven cavity 4201, and two second air chambers 423 are accommodated in the second oven cavity 4201; the second partition 4211 is provided with two fourth air outlets 4211a and two third air return outlets 4211b, wherein the two fourth air outlets 4211a are disposed near one side of the outlet of the second drying tunnel 422 and respectively located at the upper and lower sides of the second drying tunnel 422 to be connected with the air inlets 41420 of the two second air chambers 423, and the two third air return outlets 4211b are disposed near one side of the inlet of the second drying tunnel 422 and respectively located at the upper and lower sides of the second drying tunnel 422. In the process that the base material passes through the second drying channel 422, hot air can be continuously generated in the second hot air circulation cavity, then the hot air can be blown into the two second air chambers 423 from the two fourth air outlets 4211a, then the hot air is blown into the second drying channel 422 through the plurality of second air nozzles 4231 which are arranged in an up-down staggered manner, then the hot air returns into the second hot air circulation cavity from the two third air return openings 4211b after passing through the surface of the base material, the flowing direction of the hot air in the whole process is opposite to the advancing direction X of the base material, so that the hot air can be fully contacted with the base material, and the drying efficiency of the base material is favorably improved.
It is understood that, in the present embodiment, the first hot air circulation chamber has the same structure as the second hot air circulation chamber, and a heater 43 and a fan 44 are respectively disposed in the first hot air circulation chamber and the second hot air circulation chamber, the heater 43 is used for heating the hot air returned from the first bake chamber 4101 and the second bake chamber 4201 and the air supplemented from the outside, and the fan 44 is used for guiding the flow direction of the hot air in the first hot air circulation chamber and the second hot air circulation chamber.
The specific structure of the dust-proof device 60 will be described below.
Referring to fig. 1 and fig. 2, in one embodiment, the casting machine further includes a dustproof device 60, the dustproof device 60 includes a dust-isolating box 61 and a pressurization mechanism 62, the dust-isolating box 61 wraps the feeding device 10, the guiding device 20, the coating device 30 and the collecting device 50, and is communicated with the drying device 40, the pressurization mechanism 62 is disposed on the dust-isolating box 61 and is used for increasing air pressure in the dust-isolating box 61, so that the feeding device 10, the guiding device 20, the coating device 30 and the collecting device 50 are located in an environment of a clean room with a level of 1000 or more, and even if the casting machine is disposed in a clean room with a level of 1000 or less, the requirement of producing a high-quality film can be met, which is beneficial to improving the applicability of the casting machine.
Alternatively, the number of the dust boxes 61 is at least two, the feeding device 10, the first material guiding assembly 21, the coating device 30 and the second material guiding assembly 22 may be accommodated in one of the dust boxes 61, the third material guiding assembly 23 and the material collecting device 50 may be accommodated in the other dust box 61, each dust box 61 is provided with a pressurizing mechanism 62, the pressurizing mechanism 62 may include a fan 44, a filter element and the like, is communicated with the dust box 61, and continuously blows clean air into the inside of the dust box 61 to increase the air pressure inside the dust box 61, so that the air flow flows from the inside to the outside of the dust box 61, and prevents dust in the external environment from entering the dust box 61, so that the environment inside the dust box 61 reaches the standard of a dust-free workshop of more than 1000.
It can be understood that the inside of the drying device 40 is provided with the filter and heater 43 so that the air pressure inside the drying device 40 is greater than the air pressure outside, and thus the drying device 40 itself has a dustproof function.
The specific structure of the control device 70 will be described below.
Referring to fig. 1 and 2, in one embodiment, the casting machine further includes a control device 70 for controlling the casting machine to operate according to a preset program, the control device 70, the feeding device 10 and the drying device 40 are located between the coating device 30 and the collecting device 50, the control device 70 is located near the collecting device 50, the feeding device 10 is located near the coating device 30, and the drying device 40 is located above the feeding device 10 and the control device 70.
Specifically, controlling means 70, material feeding unit 10 and drying device 40 three are the triangle and arrange, and wherein, drying device 40 is last, and material feeding unit 10 is down and lean on the left, and controlling means 70 is down and lean on the right to be favorable to make full use of limited space, make the structure of casting machine compacter, it is littleer to occupy the place. The control device 70 includes a controller, an electric box, etc. for controlling the feeding device 10, the material guiding device 20, the coating device 30, the drying device 40, the material collecting device 50, the dust-proof device 60, etc. to operate according to a computer program preset by a technician, thereby automating the casting machine.
The specific structure of the cutting device is described below.
Referring to fig. 13 and 14, as an embodiment of the casting machine provided by the present application, the casting machine further includes a first cutting device 81, and the first cutting device 81 is disposed in the dust box 61 and between the drying device 40 and the collecting device 50.
Specifically, the first cutting device 81 comprises a cutting knife 811, a tension roller 812, a swing arm 813, a positioning roller 814, a swing arm driving mechanism 815, a cutting knife driving mechanism 816 and a positioning roller 814 driving mechanism, wherein the cutting knife 811, the tension roller 812 and the positioning roller 814 are arranged in parallel, the tension roller 812 is rotatably connected to the end of the swing arm 813, the cutting knife 811 is connected to the rotating shaft of the tension roller 812 in a swinging manner, the positioning roller 814 is connected to the middle of the swing arm 813 in a swinging manner, the cutting knife driving mechanism 816 and the positioning roller 814 driving mechanism are mounted on the swing arm 813, the cutting knife driving mechanism 816 is in driving connection with the cutting knife 811 and is used for driving the cutting knife 811 to swing around the rotating shaft of the tension roller 812, the positioning roller 814 driving mechanism is in driving connection with the positioning roller 814 and is used for driving the positioning roller 814 to swing around a connecting shaft connected with the swing arm 813, the swing arm driving mechanism 815 is in driving connection with the swing arm 813 and is used for driving the swing arm 813 to drive the cutting knife 811, the positioning roller 814, Tensioning roller 812 and positioning roller 814 are close to or far away from the collecting device 50, and the driving mechanisms of the swing arm driving mechanism 815, the cutter driving mechanism 816 and the positioning roller 814 respectively comprise driving parts such as air cylinders or electric cylinders; meanwhile, the collecting device 50 further includes two steering rollers 57, and the two steering rollers 57 are located at opposite sides of the first rotating shaft 531 and between the two air-inflating rollers 52. When one of the inflatable rollers 52 finishes receiving material (winding the processed substrate into a finished material roll 2), the turntable driving mechanism of the material collecting device 50 drives the turntable 511 to rotate, during the rotation of the turntable 511, the substrate passes through one of the steering rollers 57, the swing arm driving mechanism 815 of the first cutting device 81 drives the swing arm 813 to swing so as to drive the cutter 811, the tension roller 812 and the positioning roller 814 to be close to the substrate until the tension roller 812 presses the substrate to tension the substrate, then the cutter driving mechanism 816 drives the cutter 811 to swing so as to cut the substrate, meanwhile, the positioning roller 814 driving mechanism drives the positioning roller 814 to swing and press the broken aggregate on one side of the substrate close to the drying device 40 against the other inflatable roller 52 of the device 50, the inflatable roller driving mechanism drives the inflatable roller 52 to rotate so as to wind the substrate on the inflatable roller 52, therefore, under the cooperation of the first cutting device 81, the collecting device 50 can continuously receive materials, and the production efficiency of the casting machine is effectively improved.
The tension roller 812 is pressed against the substrate, and the tension roller 812 is arranged along the width direction of the substrate, at which time the first cutting device 81 is used to cut the substrate in a tensioned state, i.e., the substrate is in a flat state. The length of the substrate is much greater than the radial length of the tension roller 812 and the substrate is advanced lengthwise. The tensioning roller 812 presses the substrate, the tensioning roller 812 is arranged along the width direction of the substrate, at the moment, a small section of the substrate in the length direction covers the partial round side face of the tensioning roller 812, because the tensioning roller 812 presses the substrate, the substrate on two sides of the tensioning roller 812 still keeps a tensioning state, the portions of the substrate on two sides of the tensioning roller 812 are parallel to the tangential direction of the round side face of the tensioning roller 812, and the protruding direction of the cutting edge of the cutter 811 is perpendicular to the tangential direction of the round side face, so when the swing arm 813 drives the cutter 811 to rotate around the axis of the tensioning roller 812, the cutting edge of the cutter 811 can cut the substrate in the direction perpendicular to the surface of the substrate.
Of course, according to specific situations and requirements, a second cutting device 82 may be disposed between the feeding device 10 and the first material guiding assembly 21, and the substrate to be processed is cut off by the second cutting device 82, so as to control the discharging amount.
Furthermore, a second rotation driving mechanism is arranged at one end of the steering roller 57, a third rotation driving mechanism 817 is arranged at one end of the positioning roller 814, the structures of the second rotation driving mechanism and the third rotation driving mechanism 817 are the same as those of the first rotation driving mechanism 56, the tangential speeds of the steering roller 57 and the positioning roller 814 can be driven to be consistent with the advancing speed of the base material through the second rotation driving mechanism and the third rotation driving mechanism 817 respectively, so that the rolling friction between the steering roller 57 and the positioning roller 814 and the base material is reduced, and the resistance of base material conveying is greatly reduced
The specific structure of the detecting unit 90 will be described below.
Referring to fig. 2, as an embodiment of the casting machine provided in the present application, the casting machine further includes a detecting device 90, and the detecting device 90 is disposed in the dust-proof box 61 and located between the drying device 40 and the first cutting device 81. Specifically, the detecting device 90 may be an infrared detector or an ultrasonic detector, and is used for detecting whether the slurry coated on the surface of the substrate is uniform and consistent, so as to ensure that the substrate rolled by the collecting device 50 meets the production requirements; the third material guiding assembly 23 is located between the drying device 40 and the detecting device 90, the casting machine further comprises a fourth material guiding assembly 24, and the fourth material guiding assembly 24 is located between the detecting device 90 and the first cutting device 81, so that the substrate can be smoothly conveyed between the drying device 40 and the detecting device 90 and between the detecting device 90 and the first cutting device 81 through the third material guiding assembly 23 and the fourth material guiding assembly 24.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A high-speed precise full-automatic film casting machine for MLCC (multilayer ceramic capacitor) is used for coating slurry on the surface of a base material and is characterized by comprising a material guide device, and a feeding device, a coating device, a drying device and a material collecting device which are sequentially arranged along the advancing direction of the base material;
the material guide devices are respectively arranged between the feeding device and the coating device, between the coating device and the drying device and between the drying device and the material collecting device;
the feeding device is used for placing the material roll to be processed and releasing the base material to be processed in the material roll to be processed;
the coating device comprises a coating support, a thickness adjusting mechanism and a coating die head, wherein the thickness adjusting mechanism comprises a gap adjusting driving piece arranged on the coating support and two coating rollers which are rotatably arranged on the coating support and are arranged in parallel, the gap adjusting driving piece is connected with the coating rollers to adjust the gap between the two coating rollers, the coating die head is arranged on the coating support, and the coating die head is used for coating slurry on the base material conveyed by the coating rollers;
the drying device is used for drying the base material coated with the slurry;
the material collecting device is used for winding the dried base material into a finished material roll.
2. The MLCC high-speed precision full-automatic film casting machine according to claim 1, characterized in that: the thickness adjusting mechanism further comprises a position sensor arranged on the coating support, and the position sensor is used for detecting a gap between the two coating rollers.
3. The MLCC high-speed precision full-automatic film casting machine according to claim 2, characterized in that: the position sensor corresponds to each end of each coating roller and is used for detecting the position of the corresponding end of the coating roller relative to the coating support.
4. The MLCC high-speed precision full-automatic film casting machine according to claim 2, characterized in that: and each end part of each coating roller corresponds to the gap adjusting driving part, and the gap adjusting driving part is used for adjusting the position of the corresponding end part of the coating roller relative to the coating support.
5. The MLCC high-speed precision full-automatic film casting machine according to claim 4, characterized in that: the coating device comprises two coating rollers, gap adjusting driving pieces, two other gap adjusting driving pieces and a transmission mechanism, wherein the two coating rollers are arranged up and down, the gap adjusting driving pieces are located on one side, far away from supplied materials, of the coating rollers, the number of the gap adjusting driving pieces is four, the two gap adjusting driving pieces are arranged up and down and located at one ends of the coating rollers, the other two gap adjusting driving pieces are arranged up and down and located at the other ends of the coating rollers, and each gap adjusting driving piece adjusts the corresponding end part of the corresponding coating roller to move up and down through the transmission mechanism.
6. The MLCC high-speed precision full-automatic film casting machine according to claim 2, characterized in that: the coating die head is slidably arranged on one side of the coating rollers far away from the incoming material, and the coating die head slides towards the direction close to the coating rollers when the position sensor detects that the gap between the two coating rollers conforms to the preset gap.
7. The MLCC high-speed precision full-automatic film casting machine according to claim 1, characterized in that: the casting machine further comprises a slurry feeding device, wherein the slurry feeding device is movably arranged and is used for supplying slurry to the coating die head.
8. The MLCC high-speed precision full-automatic film casting machine according to claim 1, characterized in that: the drying device comprises a carrier roller drying oven and a suspension drying oven, the carrier roller drying oven is used for pre-drying the base material coated with the slurry, the suspension drying oven is used for rapidly drying the base material, and the carrier roller drying oven and the suspension drying oven are sequentially arranged along the advancing direction of the base material and are communicated with each other.
9. The MLCC high-speed precision full-automatic film casting machine according to claim 8, characterized in that: the carrier roller drying oven comprises a first box body, a first drying channel and an airflow adjusting component, the first box body comprises a first partition plate which can divide an inner cavity of the first box body into a first drying cavity and a first hot air circulation cavity, the first drying channel penetrates through the first drying cavity and is used for the base material to pass through, the first partition plate is provided with a first air outlet and a first air return opening, the first air outlet is arranged at one side close to an outlet of the first drying channel, the first air return opening is arranged at one side close to an inlet of the first drying channel, the airflow adjusting component comprises a first fan cover, a second fan cover and a third fan cover, the first fan cover, the second fan cover and the third fan cover are arranged in the first drying cavity and are positioned right above the first drying channel, the first air outlet is covered by the first fan cover, the first air return opening is covered by the second fan cover, and the third fan cover is arranged between the first fan cover and the second fan cover, the first fan housing faces the side wall of the third fan housing, the second fan housing faces the side wall of the third fan housing, the third fan housing faces the side wall of the first fan housing, the third fan housing faces the side wall of the second fan housing, and the top wall of the third fan housing, which is far away from the first drying channel, is respectively provided with a first ventilation hole, and the bottom of the third fan housing is provided with an opening.
10. The MLCC high speed precision full automatic film casting machine according to any one of claims 1 to 9, characterized in that: the casting machine further comprises a control device used for controlling the casting machine to operate according to a preset program, the control device, the feeding device and the drying device are located between the coating device and the material collecting device, the control device is close to the material collecting device, the feeding device is close to the coating device, and the drying device is located above the feeding device and the control device.
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| CN202210270996.2A CN114905683B (en) | 2022-03-18 | 2022-03-18 | MLCC high-speed precise full-automatic film casting machine |
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| CN202210270996.2A CN114905683B (en) | 2022-03-18 | 2022-03-18 | MLCC high-speed precise full-automatic film casting machine |
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| CN114905683B CN114905683B (en) | 2023-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN116079884B (en) * | 2022-11-17 | 2024-03-22 | 惠州市鸿通晟自动化设备有限公司 | Casting machine for Mlcc coating |
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| CN114905683B (en) | 2023-10-31 |
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Denomination of invention: MLCC high-speed precision fully automatic film casting machine Granted publication date: 20231031 Pledgee: Bank of Communications Limited Shenzhen Branch Pledgor: SHENZHEN GIMECH TECHNOLOGY Corp. Registration number: Y2024980027378 |