CN112078234A - Accurate electronic ceramic film silk screen printing machine - Google Patents
Accurate electronic ceramic film silk screen printing machine Download PDFInfo
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- CN112078234A CN112078234A CN202010931017.4A CN202010931017A CN112078234A CN 112078234 A CN112078234 A CN 112078234A CN 202010931017 A CN202010931017 A CN 202010931017A CN 112078234 A CN112078234 A CN 112078234A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/12—Machines with auxiliary equipment, e.g. for drying printed articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0831—Machines for printing webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/16—Printing tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0403—Drying webs
- B41F23/0423—Drying webs by convection
- B41F23/0426—Drying webs by convection using heated air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/0483—Drying combined with cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
Abstract
The invention belongs to the technical field of ceramic thin film screen printing, and particularly relates to a precise electronic ceramic thin film screen printing machine; comprises a frame; the frame is sequentially provided with a conveying deviation correcting mechanism, a tension conveying mechanism, a silk-screen printing mechanism, a drying mechanism and a winding deviation correcting mechanism; the movable base is slidably mounted at the end part of the frame through a guide sliding rail, and the side wall of the movable base is connected to the driving end of the driving assembly; the output end of the deviation correcting motor is connected with an unwinding air expansion shaft through an output shaft; the tension conveying mechanism is arranged between the unreeling deviation correcting mechanism and the screen printing mechanism, and a deviation correcting sensor is arranged between the tension conveying mechanism and the unreeling deviation correcting mechanism; the object carrier is provided with an object stage through a lifting assembly, and a scraping head slurry spreading transmission assembly is arranged right above the object stage; the scraping head slurry spreading transmission component adopts a screen printing head; the structure combination optimization of the invention can lead the equipment to be suitable for silk-screen products with smaller specifications and ultra-wide thin film silk-screen printing, and effectively improves the efficiency of the ceramic thin film silk-screen printing production.
Description
Technical Field
The invention belongs to the technical field of ceramic thin film screen printing, and particularly relates to a precise electronic ceramic thin film screen printing machine.
Background
At present, along with the improvement of living standard of people, the continuous intellectualization of electronic products has more and more demands on intelligent electronic products, more and more electronic product varieties, increasingly powerful functions and smaller volume. This requires that the main electronic components of the electronic product, such as capacitors, resistors, inductors, sensors, etc., be made as small as possible and have as high a reliability as possible.
At present, the trend characteristics in the aspect of MLCC ceramic capacitor products are as follows: the development is towards the high-efficiency miniaturization specification. The new MLCC technology is developed to adapt to the trend. A film screen printing machine for the new MLCC process is also developed.
Chinese patent discloses a full-automatic film silk screen printing machine, and patent application number is 2009202638929, includes in proper order and send membrane mechanism, silk screen printing mechanism, stoving mechanism, receive membrane mechanism, silk screen printing mechanism include the silk screen frame on the frame panel, be equipped with the double-figure silk screen that can print two figures simultaneously, realize the printing subassembly of silk screen printing action, for the guide rail of printing subassembly silk screen printing direction and run through the transmission lead screw that printing subassembly just can drive the printing subassembly at the both ends of printing subassembly and constitute in the silk screen frame.
Although the device can perform silk-screen printing operation on the film; however, the existing ceramic film screen printing machine is only suitable for performing screen printing on a single film with a packaging size of over 0805, so that the screen printing operation on ceramic film metal with packaging sizes of 0603, 0402 and smaller specifications is difficult, and the screen printing of 4 combined large-size films is difficult to realize, thereby affecting the phenomenon of efficient and rapid production of ceramic film screen printing.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides the precise electronic ceramic film screen printing machine which is mainly used for solving the problems that the traditional ceramic film screen printing machine is only suitable for carrying out screen printing on a single film with the packaging size of more than 0805, the metal screen printing operation of the ceramic films with the packaging sizes of 0603, 0402 and smaller specifications is difficult, the screen printing of 4 combined large-size films is difficult to realize, and the high-efficiency and quick production of the ceramic film screen printing is influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a precise electronic ceramic film screen printing machine, which comprises a frame; the frame is sequentially provided with a conveying deviation correcting mechanism, a tension conveying mechanism, a silk-screen printing mechanism, a drying mechanism and a winding deviation correcting mechanism;
the conveying deviation correcting mechanism comprises a movable base, a guide slide rail, a driving assembly, a deviation correcting motor, an output shaft and an unreeling air expansion shaft; the movable base is slidably mounted at the end part of the rack through a guide sliding rail, and the side wall of the movable base is connected to the driving end of the driving assembly; a deviation rectifying motor is fixed on the side wall of the movable base; the output end of the deviation correcting motor is connected with an unwinding air inflation shaft through an output shaft, and the unwinding air inflation shaft is positioned right above the bottom plate of the movable base; the tension conveying mechanism is arranged between the unwinding deviation correcting mechanism and the screen printing mechanism, and a deviation correcting sensor is arranged between the tension conveying mechanism and the unwinding deviation correcting mechanism;
the silk-screen printing mechanism is arranged behind the tension conveying mechanism and comprises a carrier, an object stage, a lifting assembly, a scraping head slurry spreading transmission assembly and an electrical control assembly; the object carrier is provided with an object stage through a lifting assembly, and a scraping head slurry spreading transmission assembly is arranged right above the object stage; the scraping head slurry paving transmission assembly adopts a screen printing head and is used for paving and screen printing the ceramic film; the carrier is provided with an electric control assembly, and the electric control assembly is used for carrying out power transmission on the silk-screen printing mechanism;
the drying mechanism comprises an oven, a case sealing plate and a hot air case; the oven is arranged behind the silk-screen printing mechanism through the case sealing plate, and a heating system and a heat preservation system are arranged in the oven; the side wall of the oven is provided with a hot air box, and an exhaust fan is arranged in the hot air box and used for carrying out air supply and exhaust operation on heat in the hot air box;
the winding deviation correcting mechanism consists of a conveying deviation correcting mechanism, a vacuum adsorption roller mechanism and a tension adjusting mechanism, and is arranged at the tail end of the rack;
when the system works, when a blank PET film with ceramics is required to be subjected to silk-screen printing, a film rolling vehicle is pushed manually to place the cast PET film with ceramics on an unreeling air expansion shaft, one end of the ceramic film is pulled manually to pass through a deviation-correcting sensor to a tension and tension conveying mechanism, the tension adjusting mechanism can adjust the tension of the ceramic film, then the ceramic film is conveyed to the lower part of an image detection assembly through a vacuum adsorption roller mechanism to be detected, the pinhole problem is fed back to a control system, and the system records the result; when the section reaches the position below a screen printing head of a scraping head slurry spreading transmission assembly and is above an objective table, a system feeds back whether a pinhole problem exists or not, if the pinhole problem does not exist, the section of ceramic film can be subjected to screen printing, if the pinhole problem exists, the section of ceramic film cannot be subjected to screen printing, the next section of ceramic film is transmitted to be subjected to screen printing, the ceramic film subjected to screen printing is conveyed into a drying oven of a conveying belt drying mechanism, a heating system arranged in the drying oven can be used for drying the ceramic film subjected to screen printing, then the ceramic film is conveyed into a hot air box to be subjected to heat preservation drying, and the dried screen printing ceramic film is subjected to unwinding expansion shaft winding of the conveying belt correcting mechanism through a vacuum adsorption roller mechanism of a winding correcting mechanism; through the mutual matching of the conveying deviation-rectifying mechanism, the tension conveying mechanism, the silk-screen printing mechanism, the drying mechanism and the winding deviation-rectifying mechanism, the silk-screen printing machine disclosed by the invention is high in coherence, reasonable and compact in structural arrangement, and suitable for ceramic films with the thickness of 0.025-0.05mm and the width of 350; the thickness of the ceramic medium is from 1.6 μm to 30 μm; the optimization of the structural combination can lead the equipment to be suitable for silk-screen printing of products with smaller specifications and ultra-wide thin film silk-screen printing, thereby effectively improving the efficiency of the silk-screen printing production of the ceramic thin film; when the deviation-correcting sensor arranged on the conveying deviation-correcting mechanism at the front end of the rack detects that the ceramic film deviates, the controller can control the driving assembly to work, the driving assembly can be a driving cylinder, the driving assembly can drive the moving base to move along the guide sliding rail to the opposite direction of the deviation of the ceramic film, the deviation-correcting motor can synchronously drive the ceramic film on the unwinding air expansion shaft to perform deviation adjustment operation, the phenomenon that the ceramic film deviates when being conveyed in a long distance is effectively prevented, and the efficient and quick screen printing operation of the ceramic film is influenced.
Preferably, the tension conveying mechanism consists of a fixed base, a vacuum adsorption roller mechanism, a tension adjusting mechanism and an image detection assembly; the upper end of the fixed base is provided with a vacuum adsorption roller mechanism, and the vacuum adsorption roller mechanism comprises a vacuum roller, a rotating pipe, a rotating column and a vacuum pump; air guide holes are formed in the circumferential wall of the vacuum roller; one end of the vacuum roller is rotatably connected with a rotating pipe through a bearing, and the rotating pipe is arranged on the upper end surface of one side of the fixed base through a supporting frame; the other end of the vacuum roller is rotatably connected to the upper end face of the other side of the fixed base through a rotating column, the end part of the rotating column is connected to the output end of a driving motor, and the driving motor is fixed on the fixed base; the end part of the rotating pipe is connected to a pump port of a vacuum pump, and the vacuum pump is fixed on the fixed base; the tension adjusting mechanism is arranged on the fixed base and is positioned right below the vacuum adsorption roller mechanism; the image detection assembly comprises a supporting box body and a pinhole camera; the supporting box body is arranged right above the fixed base in height, and a pinhole camera is fixed on the upper end face of the supporting box body; when the ceramic film conveying device works, when the ceramic film moves to the tension conveying mechanism, the ceramic film firstly passes through the tension adjusting mechanism, the tension adjusting mechanism can adjust the tension of the ceramic film, when the ceramic film moves to the vacuum adsorption roller mechanism, the driving motor can drive the vacuum roller to rotate through the rotating column, the vacuum roller can detect the pinholes on the surface of the ceramic film after the deviation correction of the conveying deviation correcting mechanism at the image detection assembly, and the pinhole camera can detect whether the ceramic film has the pinhole problem; when needing vacuum adsorption cylinder mechanism to carry out the distance to ceramic film and carry, the work of vacuum pump can be controlled to the controller, driving motor is in the out-of-service condition simultaneously, the vacuum pump can be taken the inside gas of vacuum cylinder out through the rotating tube, the suction of vacuum pump can make vacuum cylinder's outer wall produce vacuum adsorption's effect through the gas guide hole simultaneously, and then can adsorb the ceramic film of carrying on the vacuum cylinder fixedly, prevent that driving motor from stopping the back, because vacuum cylinder's inertial rotation, lead to the phenomenon that ceramic film continues the antedisplacement to appear, and then influence ceramic film's the effect of stable distance transmission.
Preferably, the tension adjusting mechanism comprises a fixed rotating shaft, a sliding seat, a sliding rotating shaft, an electromagnetic buckle, a conveying belt disc and a conveying belt; two ends of the fixed rotating shaft are rotatably arranged on two side walls of the fixed base through bearings, and two ends of the fixed rotating shaft extend out of the two side walls of the fixed base; two side walls of the fixed base are provided with sliding grooves, and sliding seats are arranged in the sliding grooves in a sliding mode; the inner side wall of the sliding seat is rotatably provided with a sliding rotating shaft, and the outer wall of the sliding seat is provided with an electromagnetic buckle; two conveying belt discs are rotatably arranged on the outer walls of the two sides of the fixed base, and one conveying belt disc is rotatably connected to the output end of the driving motor through a rotating shaft; a conveying belt is sleeved on the conveying belt disc, and the outer wall of the conveying belt is made of soft metal materials; the electromagnetic buckle magnetic adsorption block is clamped on the outer wall of the conveying belt; the during operation, when the ceramic film that needs to carry the mechanism of rectifying a deviation and see off carries out the tensioning adjustment, the controller can control the electromagnetism buckle and get electric, the control buckle can adsorb conveyor belt's outer wall, then the driving motor of unable adjustment base lateral wall rotates and can drive the sliding seat through conveyor belt and slide in the sliding tray, the slip of sliding seat can increase the sliding tray and rotate the distance between the slip pivot that sets up and the fixed rotating shaft, and then can play the operation of tensioning to the ceramic film of fixed rotating shaft and the epaxial rotation of slip pivot transport, prevent effectively that when vacuum adsorption roller mechanism is carrying out distance or long distance transport to ceramic film, and then lead to the phenomenon that the surface of ceramic film produced fold or ripple vibration easily, and then influence the phenomenon of the quick high-efficient work of ceramic film silk screen printing machine.
Preferably, the other of the feeding reels is fixed to an end of a fixed rotating shaft; two ends of the sliding groove are provided with limiting fixture blocks, and the upper end faces of the limiting fixture blocks are fixed with electromagnetic guide strips; the electromagnetic guide strip is positioned above the sliding groove; a guide sliding block is arranged on the inner side of the sliding seat and is clamped to the electromagnetic guide strip in a sliding manner; the guide sliding block is made of insulating rubber materials, and a sliding chute opening of the guide sliding block is made of metal materials; the other side of the sliding seat is connected to the side wall of the sliding groove through a spring; when the tension adjusting mechanism is not needed to adjust the distance between the sliding rotating shaft and the fixed rotating shaft during working, the controller controls the electromagnetic buckle to lose power, so that the electromagnetic buckle is separated from adsorbing the conveying belt, meanwhile, the electromagnetic guide strip can be electrified to adsorb the guide sliding block, the sliding seat can be fixed in the sliding groove by the magnetic adsorption of the electromagnetic guide strip on the guide sliding block, and the adjusted sliding rotating shaft can be further fixed; then the driving motor can drive the fixed rotating shaft to rotate through the conveying belt, the fixed rotating shaft can drive and convey the ceramic film, and the tensioning and adjusting mechanism can not only tension and adjust the ceramic film, but also drive and convey the ceramic film; meanwhile, when the distance between the sliding rotating shaft and the fixed rotating shaft needs to be adjusted continuously, the electromagnetic buckles are magnetically adsorbed onto the conveying belt, the synchronous electromagnetic guide strips are separated from the magnetic adsorption on the guide sliding blocks, and then the conveying belt rotates to drive the sliding seat to slide, so that the sliding seat is convenient to slide and adjust; the sliding limiting block can be used for limiting sliding of the sliding seat, the sliding distance of the sliding seat is prevented from being too large, the ceramic film is prevented from being tensioned too large, and the ceramic film is further prevented from being torn.
Preferably, the vacuum drum comprises an outer drum, an inner drum, a rotating ring and a sealing arc plate; an inner roller is fixedly inserted in the outer roller, and air guide holes are formed in the outer roller and the inner roller; a filter screen is arranged between the rotating pipe and the inner roller; an annular cavity is formed in the sealing cover at one end of the vacuum roller, and a rotating ring is rotatably arranged in the annular cavity; a sealing arc plate is arranged in the inner roller, and one end of the sealing arc plate is fixed on the rotating ring; the arc-shaped upper end wall of the sealing arc plate is rotationally attached to the inner side wall of the inner roller; when the vacuum cylinder works, when the vacuum cylinder adsorbs and fixes the ceramic film under the suction force of the vacuum pump, dust falling into the surface of the ceramic film can be adsorbed into the inner roller through the adsorption force of the air guide holes on the ceramic film, the dust or the dust can be filtered by the filter screen and then falls into the sealing arc plate for collection, and the sealing arc plate is rotatably arranged in the inner roller through the rotating ring, so that the arc-shaped opening of the sealing arc plate is still upward when the vacuum cylinder rotates, the collection operation of the falling dust or the dust is convenient, and the neatness of the ceramic film during silk-screen printing is improved; simultaneously the suction that vacuum drum surface produced can enter into interior roller with its surface or dust suction on every side, and the operation is carried to ceramic film that vacuum drum can high-efficient clear of being convenient for, and the dust that prevents vacuum drum surface gathering or fall into is more, and when ceramic film and vacuum drum rotational friction, the dust can bond on ceramic film, and then influences ceramic film's silk screen printing quality.
Preferably, the other end face of the vacuum drum is provided with a plurality of insertion grooves, and insertion blocks are movably inserted into the insertion grooves; the plug-in block is fixed on the movable cover, and the movable cover is fixed on the end surface of the vacuum drum through a fixing bolt; the during operation, when the dust of collecting in the vacuum drum needs to be taken out, maintenance person can dismantle vacuum drum from unable adjustment base, then take off the fixing bolt that the movable cover was covered from vacuum drum's tip, alright with dismantle movable cover from vacuum drum, operating personnel can clear up the dust or the dust of collecting on the sealed arc board and get rid of, need not discharge the dust of collecting in the vacuum drum through the vacuum pump, improve vacuum pump's life.
The invention has the following beneficial effects:
1. the screen printing machine has high consistency, reasonable and compact structure discharge, and is suitable for ceramic films with the thickness of 0.025-0.05mm and the width of 350 mm; the thickness of the ceramic medium is from 1.6 μm to 30 μm; and the structural combination optimization can lead the equipment to be suitable for silk-screen products with smaller specifications and ultra-wide thin film silk-screen printing, thereby effectively improving the efficiency of the ceramic thin film silk-screen printing production.
2. According to the invention, by adopting the matching of the conveying deviation-rectifying mechanism and the tension conveying mechanism, the conveying deviation-rectifying mechanism can carry out deviation-rectifying operation on the ceramic film in the conveying process, so that the quality of the ceramic film silk-screen printing is improved; tension conveying mechanism can realize that long distance is transported in succession or the stride transports carrying the ceramic film that the mechanism of rectifying carries, can prevent simultaneously that ceramic film surface from not producing the fold, ripple vibration phenomenon, further improves ceramic film's silk screen printing's high efficiency.
3. According to the invention, through the matching of the sealing arc plates arranged in the vacuum drum, dust or dust on the surface or around the surface of the vacuum drum can be sucked into the inner drum by the suction force generated on the surface of the vacuum drum, so that the vacuum drum can efficiently and cleanly convey the ceramic film, the phenomenon that the surface of the vacuum drum is gathered or the dust falls into the vacuum drum is prevented, and the dust can be bonded on the ceramic film when the ceramic film is in rotational friction with the vacuum drum, thereby further influencing the silk-screen quality of the ceramic film.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a block diagram of the tension feed mechanism of the present invention;
FIG. 3 is an assembly view of the vacuum suction drum mechanism and the tension adjustment mechanism of the present invention;
FIG. 4 is a block diagram of the conveyance deviation correction mechanism of the present invention;
FIG. 5 is a block diagram of a screen printing mechanism of the present invention;
FIG. 6 is a structural diagram of a winding deviation rectifying mechanism of the present invention;
FIG. 7 is a block diagram of the vacuum drum of the present invention;
FIG. 8 is a cross-sectional view of the vacuum drum of the present invention;
in the figure: the device comprises a rack 1, a conveying deviation correcting mechanism 2, a moving base 21, a guide slide rail 22, a driving assembly 23, a deviation correcting motor 24, an output shaft 25, an unreeling air expansion shaft 26, a tension conveying mechanism 3, a fixed base 31, a slide groove 311, a screen printing mechanism 4, a carrier frame 41, a carrier table 42, a lifting assembly 43, a head scraping and pulp spreading transmission assembly 44, an electric control assembly 45, a drying mechanism 5, an oven 51, a case sealing plate 52, a hot air box 53, a reeling deviation correcting mechanism 6, a vacuum adsorption roller mechanism 7, a vacuum roller 71, an outer roller 711, an inner roller 712, a rotating ring 713, a sealing arc plate 714, a sealing cover 715, a plugging groove 716, a plugging block 717, a movable cover 718, a rotating pipe 72, a rotating column 73, a vacuum pump 74, a tension adjusting mechanism 8, a fixed rotating shaft 81, a sliding seat 82, a sliding rotating shaft 83, an electromagnetic buckle 84, a conveying belt disc 85, a belt conveying, The device comprises an electromagnetic guide strip 88, a guide slide block 89, an image detection assembly 9, a supporting box 91, a pinhole camera 92 and a deviation correction sensor 10.
Detailed Description
A precision electronic ceramic thin film screen printing machine according to an embodiment of the present invention will be described below with reference to fig. 1 to 8.
As shown in fig. 1-8, the precise electronic ceramic thin film screen printing machine of the present invention comprises a frame 1; the machine frame 1 is sequentially provided with a conveying deviation correcting mechanism 2, a tension conveying mechanism 3, a silk-screen printing mechanism 4, a drying mechanism 5 and a winding deviation correcting mechanism 6;
the conveying deviation correcting mechanism 2 comprises a movable base 21, a guide slide rail 22, a driving assembly 23, a deviation correcting motor 24, an output shaft 25 and an unreeling inflatable shaft 26; the movable base 21 is slidably mounted on the end of the frame 1 through a guide slide rail 22, and the side wall of the movable base 21 is connected to the driving end of a driving assembly 23; a deviation rectifying motor 24 is fixed on the side wall of the movable base 21; the output end of the deviation correcting motor 24 is connected with an unwinding air inflation shaft 26 through an output shaft 25, and the unwinding air inflation shaft 26 is positioned right above the bottom plate of the movable base 21; the tension conveying mechanism 3 is arranged between the unwinding deviation correcting mechanism and the screen printing mechanism 4, and a deviation correcting sensor 10 is arranged between the tension conveying mechanism 3 and the unwinding deviation correcting mechanism;
the silk-screen printing mechanism 4 is arranged behind the tension conveying mechanism 3, and the silk-screen printing mechanism 4 comprises a carrier 41, an object stage 42, a lifting assembly 43, a head scraping and pulp spreading transmission assembly 44 and an electric control assembly 45; the carrier 41 is provided with an object stage 42 through a lifting assembly 43, and a scraping and slurry spreading transmission assembly 44 is arranged right above the object stage 42; the scraping head slurry spreading transmission assembly 44 adopts a screen printing head and is used for spreading and screen printing the ceramic film; an electrical control assembly 45 is arranged on the object carrier 41, and the electrical control assembly 45 is used for carrying out power transmission on the silk-screen printing mechanism 4;
the drying mechanism 5 comprises an oven 51, a case closing plate 52 and a hot air case 53; the oven 51 is arranged behind the screen printing mechanism 4 through a case sealing plate 52, and a heating system and a heat preservation system are arranged in the oven 51; a hot air box 53 is arranged on the side wall of the oven 51, and an exhaust fan is arranged in the hot air box 53 and is used for carrying out air supply and exhaust operation on heat in the hot air box 53;
the winding deviation correcting mechanism 6 consists of a conveying deviation correcting mechanism 2, a vacuum adsorption roller mechanism 7 and a tension adjusting mechanism 8, and the winding deviation correcting mechanism 6 is arranged at the tail end of the rack 1;
when the device works, when a blank PET film with ceramics is required to be subjected to silk-screen printing, the ceramic PET film after being cast is placed on the unreeling air expansion shaft 26 by manually pushing the film reeling vehicle, one end of the ceramic film is pulled to pass through the deviation rectifying sensor 10 to the tension conveying mechanism 3 by manual operation, the tension adjusting mechanism 8 can adjust the tension of the ceramic film, and then the ceramic film is fixedly sawed by the vacuum adsorption roller mechanism 7 and conveyed to the position below the image detection assembly 9 for detection and fed back to the control system to determine whether a pinhole problem exists or not, and the system makes a record; when the section reaches the position below a screen printing head of the scraping head slurry spreading transmission assembly 44 and is above the objective table 42, the system feeds back whether a pinhole problem exists or not, if no problem exists, the section of ceramic film can be subjected to screen printing, if the system feeds back that the problem exists, namely screen printing is not performed, the next section of ceramic film is driven to be subjected to screen printing, the ceramic film subjected to screen printing is conveyed into an oven 51 of the drying mechanism 5, a heating system arranged in the oven 51 is used for drying the ceramic film subjected to screen printing, then the ceramic film is conveyed into a hot air box 53 for heat preservation and drying, and the dried screen printing ceramic film is subjected to unwinding air expansion shaft 26 of the conveying belt conveying deviation correcting mechanism 2 through a vacuum adsorption roller mechanism 7 of the winding deviation correcting mechanism 6 for winding; through the mutual matching of the conveying deviation-rectifying mechanism 2, the tension conveying mechanism 3, the silk-screen printing mechanism 4, the drying mechanism 5 and the winding deviation-rectifying mechanism 6, the silk-screen printing machine disclosed by the invention is high in coherence, reasonable and compact in structural arrangement, and suitable for ceramic films with the thickness of 0.025-0.05mm and the width of 350; the thickness of the ceramic medium is from 1.6 μm to 30 μm; the optimization of the structural combination can lead the equipment to be suitable for silk-screen printing of products with smaller specifications and ultra-wide thin film silk-screen printing, thereby effectively improving the efficiency of the silk-screen printing production of the ceramic thin film; when the deviation-rectifying sensor 10 arranged on the conveying deviation-rectifying mechanism 2 positioned at the front end of the rack 1 detects that the ceramic film deviates, the controller can control the driving assembly 23 to work, the driving assembly 23 can be a driving cylinder, the driving assembly 23 can drive the moving base 21 to move along the direction opposite to the deviation of the guide sliding rail 22 to the ceramic film, at the moment, the deviation-rectifying motor 24 can synchronously drive the ceramic film on the unwinding air expansion shaft 26 to perform deviation adjustment operation, the phenomenon that the ceramic film deviates when being conveyed in a long distance is effectively prevented, and the high-efficiency quick screen printing operation of the ceramic film is further influenced.
As an embodiment of the present invention, the tension conveying mechanism 3 is composed of a fixed base 31, a vacuum adsorption roller mechanism 7, a tension adjusting mechanism 8 and an image detection assembly 9; the upper end of the fixed base 31 is provided with a vacuum adsorption roller mechanism 7, and the vacuum adsorption roller mechanism 7 comprises a vacuum roller 71, a rotating pipe 72, a rotating column 73 and a vacuum pump 74; the circumferential wall of the vacuum roller 71 is provided with air guide holes; one end of the vacuum roller 71 is rotatably connected with a rotating pipe 72 through a bearing, and the rotating pipe 72 is installed on the upper end surface of one side of the fixed base 31 through a support frame; the other end of the vacuum drum 71 is rotatably connected to the other side upper end surface of the fixed base 31 through a rotating column 73, the end of the rotating column 73 is connected to the output end of a driving motor, and the driving motor is fixed on the fixed base 31; the end of the rotating pipe 72 is connected to the pump port of the vacuum pump 74, and the vacuum pump 74 is fixed to the fixed base 31; the tension adjusting mechanism 8 is arranged on the fixed base 31, and the tension adjusting mechanism 8 is positioned right below the vacuum adsorption roller mechanism 7; the image detection assembly 9 comprises a supporting box body 91 and a pinhole camera 92; the supporting box body 91 is arranged right above the fixed base 31 in height, and a pinhole camera 92 is fixed on the upper end surface of the supporting box body 91; when the ceramic film conveying device works, when the ceramic film moves to the tension conveying mechanism 3, the ceramic film firstly passes through the tension adjusting mechanism 8, the tension adjusting mechanism 8 can adjust the tension of the ceramic film, when the ceramic film moves to the vacuum adsorption roller mechanism 7, the driving motor can drive the vacuum roller 71 to rotate through the rotating column 73, the vacuum roller 71 can detect the pinholes on the surface of the ceramic film conveying belt image detection assembly 9 after the conveying deviation correcting mechanism 2 is corrected, and the pinhole camera 92 can detect whether the ceramic film has the pinhole problem; when vacuum adsorption cylinder mechanism 7 is required to carry out distance conveying to the ceramic film, the controller can control the vacuum pump 74 to work, simultaneously, the driving motor is in a stop working state, the vacuum pump 74 can pump out the gas in the vacuum cylinder 71 through the rotating pipe 72, simultaneously, the suction force of the vacuum pump 74 can enable the outer wall of the vacuum cylinder 71 to generate a vacuum adsorption effect through the air guide hole, further, the ceramic film conveyed on the vacuum cylinder 71 can be fixedly adsorbed, after the driving motor is prevented from stopping, the phenomenon that the ceramic film continues to move forwards is caused due to the inertial rotation of the vacuum cylinder 71, and further, the effect of stable distance conveying of the ceramic film is influenced.
As an embodiment of the present invention, the tension adjusting mechanism 8 includes a fixed rotating shaft 81, a sliding seat 82, a sliding rotating shaft 83, an electromagnetic buckle 84, a conveying belt disk 85 and a conveying belt 86; two ends of the fixed rotating shaft 81 are rotatably arranged on two side walls of the fixed base 31 through bearings, and two ends of the fixed rotating shaft 81 extend out of two side walls of the fixed base 31; two side walls of the fixed base 31 are provided with sliding grooves 311, and sliding seats 82 are arranged in the sliding grooves 311 in a sliding manner; a sliding rotating shaft 83 is rotatably arranged on the inner side wall of the sliding seat 82, and an electromagnetic buckle 84 is arranged on the outer wall of the sliding seat 82; two conveying belt reels 85 are rotatably arranged on the outer walls of the two sides of the fixed base 31, and one conveying belt reel 85 is rotatably connected to the output end of the driving motor through a rotating shaft; the conveying belt 86 is sleeved on the conveying belt disc 85, and the outer wall of the conveying belt 86 is made of soft metal; the electromagnetic clasp 84 is magnetically attached to the outer wall of the conveyor belt 86; during operation, when the ceramic film that the mechanism 2 of rectifying a deviation sent out carries out the tensioning adjustment when needs, the controller can control electromagnetism buckle 84 and get electric, the control buckle can adsorb conveyor belt 86's outer wall, then the driving motor of unable adjustment base 31 lateral wall rotates and can drive sliding seat 82 through conveyor belt 86 and slide in sliding tray 311, sliding seat 82's slip can increase the distance between slip pivot 83 and the fixed pivot 81 that rotates the setting on sliding seat 82, and then can play the operation of tensioning to the ceramic film of rotating the transport in fixed pivot 81 and the slip pivot 83, effectively prevent when vacuum adsorption cylinder mechanism 7 carries out distance or long distance transport to ceramic film, and then lead to the surface of ceramic film to produce the phenomenon of fold or ripple vibration easily, and then influence the phenomenon of the quick high-efficient work of ceramic film silk screen printing machine.
As an embodiment of the present invention, another one of the feeding reels 85 is fixed to an end of the fixed rotating shaft 81; two ends of the sliding groove 311 are provided with limiting clamping blocks 87, and the upper end surfaces of the limiting clamping blocks 87 are fixed with electromagnetic guide strips 88; the electromagnetic guide bar 88 is positioned above the sliding groove 311; a guide sliding block 89 is arranged on the inner side of the sliding seat 82, and the guide sliding block 89 is clamped on the electromagnetic guide strip 88 in a sliding manner; the guide sliding block 89 is made of insulating rubber materials, and a sliding chute opening of the guide sliding block 89 is made of metal materials; the other side of the sliding seat 82 is connected to the side wall of the sliding groove 311 through a spring; during operation, when the tension adjusting mechanism 8 is not needed to adjust the distance between the sliding rotating shaft 83 and the fixed rotating shaft 81, the controller controls the electromagnetic buckle 84 to lose power, so that the electromagnetic buckle 84 is separated from being adsorbed on the conveying belt 86, meanwhile, the electromagnetic guide strip 88 is electrified to adsorb the guide sliding block 89, the sliding seat 82 can be fixed in the sliding groove 311 through the magnetic adsorption of the electromagnetic guide strip 88 on the guide sliding block 89, and the adjusted sliding rotating shaft 83 can be fixed; then, the driving motor can drive the fixed rotating shaft 81 to rotate through the conveying belt 86, the fixed rotating shaft 81 can drive and convey the ceramic film, and the tensioning and adjusting mechanism can not only tension and adjust the ceramic film, but also drive and convey the ceramic film; meanwhile, when the distance between the sliding rotating shaft 83 and the fixed rotating shaft 81 needs to be continuously adjusted, the electromagnetic buckle 84 is magnetically adsorbed on the conveying belt 86, the synchronous electromagnetic guide strip 88 is separated from the magnetic adsorption on the guide sliding block 89, and then the conveying belt 86 rotates to drive the sliding seat 82 to slide, so that the sliding adjustment of the sliding seat 82 is facilitated; the limiting fixture block 87 can be used for limiting the sliding of the sliding seat 82, so that the sliding distance of the sliding seat 82 is prevented from being too large, the ceramic film is prevented from being tensioned too large, and the ceramic film is prevented from being torn.
As an embodiment of the present invention, the vacuum drum 71 includes an outer drum 711, an inner drum 712, a rotating ring 713, and a sealing arc plate 714; an inner roller 712 is fixedly inserted into the outer roller 711, and air guide holes are formed in the outer roller 711 and the inner roller 712; a filter screen is arranged between the rotating pipe 72 and the inner roller 712; an annular cavity is formed in the sealing cover 715 at one end of the vacuum roller 71, and a rotating ring 713 is rotatably arranged in the annular cavity; a sealing arc plate 714 is arranged inside the inner roller 712, and one end of the sealing arc plate 714 is fixed on the rotating ring 713; the arc-shaped upper end wall of the sealing arc plate 714 is rotationally attached to the inner side wall of the inner roller 712; when the vacuum drum 71 is used for adsorbing and fixing the ceramic film under the suction force of the vacuum pump 74, dust falling from the surface of the ceramic film can be adsorbed into the inner drum 712 through the adsorption force of the air guide holes on the ceramic film, the dust or the dust can be filtered by the filter screen and then falls onto the sealing arc plate 714 for collection, and as the sealing arc plate 714 is rotatably arranged in the inner drum 712 through the rotating ring 713, and further when the vacuum drum 71 rotates, the arc-shaped opening of the sealing arc plate 714 is still upward, so that the collection operation of the falling dust or the dust is facilitated, and the cleanliness of the ceramic film during silk-screen printing is improved; meanwhile, the suction force generated on the surface of the vacuum drum 71 can suck dust or dust on the surface or around the surface of the vacuum drum 71 into the inner roller 712, so that the vacuum drum 71 can efficiently and cleanly convey the ceramic film, the phenomenon that the dust accumulated on the surface of the vacuum drum 71 or falls into the vacuum drum is avoided, and the dust can be bonded to the ceramic film when the ceramic film is in rotational friction with the vacuum drum 71, so that the silk-screen quality of the ceramic film is influenced.
As an embodiment of the present invention, the other end surface of the vacuum drum 71 is provided with a plurality of insertion grooves 716, and insertion blocks 717 are movably inserted into the plurality of insertion grooves 716; the insert block 717 is fixed to the movable cover 718, and the movable cover 718 is fixed to the end surface of the vacuum drum 71 by a fixing bolt; during operation, when the dust collected in the vacuum drum 71 needs to be taken out, a maintenance worker can detach the vacuum drum 71 from the fixed base 31, then take down the fixing bolt on the movable cover 718 from the end part of the vacuum drum 71, so that the movable cover 718 can be detached from the vacuum drum 71, an operator can clean and remove the dust or dust collected on the sealing arc plate 714, the dust collected in the vacuum drum 71 does not need to be discharged through the vacuum pump 74, and the service life of the vacuum pump 74 is prolonged.
The specific working process is as follows:
when the device works, when a blank PET film with ceramics is required to be subjected to silk-screen printing, the ceramic PET film after being cast is placed on the unreeling air expansion shaft 26 by manually pushing the film reeling vehicle, one end of the ceramic film is pulled to pass through the deviation rectifying sensor 10 to the tension conveying mechanism 3 by manual operation, the tension adjusting mechanism 8 can adjust the tension of the ceramic film, and then the ceramic film is fixedly sawed by the vacuum adsorption roller mechanism 7 and conveyed to the position below the image detection assembly 9 for detection and fed back to the control system to determine whether a pinhole problem exists or not, and the system makes a record; treat this section and reach the silk screen printing head below of scraping head shop thick liquid transmission assembly 44, after objective table 42 top, whether there is the pinhole problem in the system feedback, if there is not the problem can carry out the silk screen printing to this section ceramic film, the system feedback has the problem promptly not the silk screen printing, the silk screen printing is carried out to one section ceramic film of transmission next, ceramic film after the silk screen printing can be carried in drying oven 51 of drying mechanism 5, the heating system who sets up in drying oven 51 can carry out the stoving operation to ceramic film after the silk screen printing, then keep warm, cool off the drying operation in conveyer belt hot-blast box 53, silk screen printing ceramic film after the cooling can carry out the conveyer belt through the vacuum adsorption cylinder mechanism 7 of rolling mechanism 6 and carry out the rolling on the mechanism 2's that rectifies unreels physiosis axle 26.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. The utility model provides a precision electronic ceramic film silk screen printing machine which characterized in that: comprises a frame (1); the machine frame (1) is sequentially provided with a conveying deviation correcting mechanism (2), a tension conveying mechanism (3), a silk-screen printing mechanism (4), a drying mechanism (5) and a winding deviation correcting mechanism (6);
the conveying deviation correcting mechanism (2) comprises a movable base (21), a guide sliding rail (22), a driving assembly (23), a deviation correcting motor (24), an output shaft (25) and an unwinding inflatable shaft (26); the movable base (21) is slidably mounted at the end part of the frame (1) through a guide sliding rail (22), and the side wall of the movable base (21) is connected to the driving end of a driving component (23); a deviation rectifying motor (24) is fixed on the side wall of the movable base (21); the output end of the deviation rectifying motor (24) is connected with an unreeling air-expanding shaft (26) through an output shaft (25), and the unreeling air-expanding shaft (26) is positioned right above the bottom plate of the movable base (21); the tension conveying mechanism (3) is arranged between the unwinding deviation correcting mechanism and the screen printing mechanism (4), and a deviation correcting sensor (10) is arranged between the tension conveying mechanism (3) and the unwinding deviation correcting mechanism;
the silk-screen printing mechanism (4) is arranged behind the tension conveying mechanism (3), and the silk-screen printing mechanism (4) comprises a carrier (41), an object stage (42), a lifting assembly (43), a head scraping and pulp spreading transmission assembly (44) and an electric control assembly (45); an object stage (42) is arranged on the object carrier (41) through a lifting assembly (43), and a scraping head slurry spreading transmission assembly (44) is arranged right above the object stage (42); the scraping head slurry paving transmission assembly (44) adopts a screen printing head and is used for paving and screen printing the ceramic film; an electrical control assembly (45) is arranged on the object carrier (41), and the electrical control assembly (45) is used for carrying out power transmission on the silk-screen printing mechanism (4);
the drying mechanism (5) comprises an oven (51), a case sealing plate (52) and a hot air box (53); the oven (51) is arranged behind the silk-screen printing mechanism (4) through a case sealing plate (52), and a heating system and a heat preservation system are arranged in the oven (51); a hot air box (53) is arranged on the side wall of the drying oven (51), and an exhaust fan is arranged in the hot air box (53) and used for carrying out air supply and exhaust operation on heat in the hot air box (53);
the winding deviation rectifying mechanism (6) is composed of a conveying deviation rectifying mechanism (2), a vacuum adsorption roller mechanism (7) and a tension adjusting mechanism (8), and the winding deviation rectifying mechanism (6) is arranged at the tail end of the rack (1).
2. The precise electronic ceramic film screen printing machine of claim 1, which is characterized in that: the tension conveying mechanism (3) consists of a fixed base (31), a vacuum adsorption roller mechanism (7), a tension adjusting mechanism (8) and an image detection assembly (9); the upper end of the fixed base (31) is provided with a vacuum adsorption roller mechanism (7), and the vacuum adsorption roller mechanism (7) comprises a vacuum roller (71), a rotating pipe (72), a rotating column (73) and a vacuum pump (74); the circumferential wall of the vacuum roller (71) is provided with air guide holes; one end of the vacuum roller (71) is rotatably connected with a rotating pipe (72) through a bearing, and the rotating pipe (72) is installed on the upper end face of one side of the fixed base (31) through a supporting frame; the other end of the vacuum roller (71) is rotatably connected to the upper end face of the other side of the fixed base (31) through a rotating column (73), the end part of the rotating column (73) is connected to the output end of a driving motor, and the driving motor is fixed on the fixed base (31); the end of the rotating pipe (72) is connected to the pump port of a vacuum pump (74), and the vacuum pump (74) is fixed on the fixed base (31); the tension adjusting mechanism (8) is arranged on the fixed base (31), and the tension adjusting mechanism (8) is positioned right below the vacuum adsorption roller mechanism (7); the image detection assembly (9) comprises a supporting box body (91) and a pinhole camera (92); the height of the supporting box body (91) is over the fixed base (31), and a pinhole camera (92) is fixed on the upper end face of the supporting box body (91).
3. The precise electronic ceramic film screen printing machine of claim 2, wherein: the tension adjusting mechanism (8) comprises a fixed rotating shaft (81), a sliding seat (82), a sliding rotating shaft (83), an electromagnetic buckle (84), a conveying belt disc (85) and a conveying belt (86); two ends of the fixed rotating shaft (81) are rotatably arranged on two side walls of the fixed base (31) through bearings, and two ends of the fixed rotating shaft (81) extend out of two side walls of the fixed base (31); two side walls of the fixed base (31) are provided with sliding grooves (311), and sliding seats (82) are arranged in the sliding grooves (311) in a sliding mode; a sliding rotating shaft (83) is rotatably arranged on the inner side wall of the sliding seat (82), and an electromagnetic buckle (84) is arranged on the outer wall of the sliding seat (82); two conveying belt disks (85) are rotatably arranged on the outer walls of the two sides of the fixed base (31), and one conveying belt disk (85) is rotatably connected to the output end of the driving motor through a rotating shaft; a conveying belt (86) is sleeved on the conveying belt disc (85), and the outer wall of the conveying belt (86) is made of soft metal; the electromagnetic catch (84) is magnetically attached to an outer wall of the conveyor belt (86).
4. The precise electronic ceramic film screen printing machine of claim 3, wherein: wherein the other of the feeding reels (85) is fixed to an end of a fixed rotating shaft (81); two ends of the sliding groove (311) are provided with limiting clamping blocks (87), and the upper end surfaces of the limiting clamping blocks (87) are fixed with electromagnetic guide strips (88); the electromagnetic guide bar (88) is positioned above the sliding groove (311); a guide sliding block (89) is arranged on the inner side of the sliding seat (82), and the guide sliding block (89) is clamped on the electromagnetic guide strip (88) in a sliding manner; the guide sliding block (89) is made of an insulating rubber material, and a sliding chute opening of the guide sliding block (89) is made of a metal material; the other side of the sliding seat (82) is connected to the side wall of the sliding groove (311) through a spring.
5. The precise electronic ceramic film screen printing machine of claim 2, wherein: the vacuum drum (71) comprises an outer drum (711), an inner drum (712), a rotating ring (713) and a sealing arc plate (714); an inner roller (712) is fixedly inserted into the outer roller (711), and air guide holes are formed in the outer roller (711) and the inner roller (712); a filter screen is arranged between the rotating pipe (72) and the inner roller (712); an annular cavity is formed in a sealing cover (715) at one end of the vacuum roller (71), and a rotating ring (713) is rotatably arranged in the annular cavity; a sealing arc plate (714) is arranged inside the inner roller (712), and one end of the sealing arc plate (714) is fixed on the rotating ring (713); the arc-shaped upper end wall of the sealing arc plate (714) is rotationally attached to the inner side wall of the inner roller (712).
6. The precise electronic ceramic film screen printing machine of claim 5, wherein: the other end face of the vacuum drum (71) is provided with a plurality of inserting grooves (716), and inserting blocks (717) are movably inserted into the inserting grooves (716); the insert block (717) is fixed to a movable cover (718), and the movable cover (718) is fixed to an end surface of the vacuum drum (71) by a fixing bolt.
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| CN116902655A (en) * | 2023-09-13 | 2023-10-20 | 大阳(苏州)智能装备科技有限公司 | Vacuum deviation correcting mechanism for coating machine |
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