CN202343401U - Flat plate type film scraping machine - Google Patents
Flat plate type film scraping machine Download PDFInfo
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- CN202343401U CN202343401U CN2011205189295U CN201120518929U CN202343401U CN 202343401 U CN202343401 U CN 202343401U CN 2011205189295 U CN2011205189295 U CN 2011205189295U CN 201120518929 U CN201120518929 U CN 201120518929U CN 202343401 U CN202343401 U CN 202343401U
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Abstract
The utility model relates to the field of film preparation, discloses a flat plate type film scraping machine, and comprises a frame, a front panel and a lateral panel. The frame comprises a base and a supporting column. The flat plate type film scraping machine is characterized in that a lead screw seat and a first motor are fixed on the base, a lead screw is installed in the lead screw seat, and the first motor is connected with the lead screw through a coupling. A stroke block is sleeved outside the lead screw, a push rod frame is fixed on the stroke block, a heat insulation plate is fixed on the supporting column, and an electric hot plate and a conduction plate are sequentially arranged on the heat insulation plate. A push rod fixed on the push rod frame is arranged above the conduction plate, and a scraper pressing device is arranged on the push rod frame. The flat plate type film scraping machine has simple operation, can prepare a large-area film which is even in thickness, small in error, high in accuracy and regular in shape, and regulates the temperature of a finished film according to needs. The surface temperature of a substrate is even, the finished film can be directly arranged on the film scraping machine for heat treatment, and damage caused by heat treatment when the film substrate is moved after the film scraping is avoided.
Description
Technical field
The utility model relates to the film preparation field, specifically is a kind of plate knifing machine.
Background technology
Traditional membrane technology of scraping is that manual scraping with scraper dripped the substrate surface that solution or melt substance are arranged; Stay one deck liquid film through the slit between scraper and the substrate; After drying or condensation, form required film, quality of forming film is difficult to be guaranteed, thickness inaccuracy, inhomogeneous; Out-of-shape, repeatable poor.
Application number is that 200510049569.8 Chinese invention patent discloses a kind of plate knifing machine; It comprises the casting film liquid bath of frame, substrate, scraper and bottom band sprue; It is characterized in that: described scraper is fixed on the elevating mechanism; And substrate is a tabular lamina membranacea, and this lamina membranacea is positioned on the main frame through elastomer, and the pulley of main frame through its both sides moves along the track that is fixed on the frame; On lamina membranacea, also be provided with simultaneously the upper end and act on described elevating mechanism, the lower end acts on lamina membranacea, can regulate the thickness governor motion in space between scraper and the lamina membranacea.Because substrate is the tabular lamina membranacea that slides along track, therefore prepared film moulding separately also can moulding on base material as required; And under the acting in conjunction of elastomer and thickness adjusting device, can control the horizontal level of lamina membranacea; To eliminate lamina membranacea because of the film thickness error that the orbital motion dipping and heaving is produced, make the finished film thickness that makes even, error is little; Precision is high, can accurately control filming technology as required simultaneously.
Application number is that 200820180253.1 Chinese utility model patent discloses a kind of high accuracy scientific research and uses small-sized flat membrane casting equipment, mainly is made up of base, bracing frame, lamina membranacea, scraper, lamina membranacea lowering or hoisting gear.Also be provided with automatic casting film and scrape film device and infrared ray heating temperature control device, can realize the control that automatically even casting film is scraped the temperature conditions in membrane process and the film-forming process.This utility model can realize accurately controlling thickness and other filming technology conditions, guarantees the requirement of system film repeatability, to satisfy the needs of power consumption section development film.Especially lamina membranacea lowering or hoisting gear; Utilized the principle of inclined-plane transmission, feed screw nut's transmission and wheel shaft, can realize the system film of high-precision ultra-thin thickness, this technology not only is applicable to the scientific research aspect; Also can extend to industrial application, in the large flat knifing machine, use.
Application number is that 200920208373.2 Chinese utility model patent discloses a kind of automatic coating knifing machine, and it comprises a pedestal, and the upper surface of this pedestal is a film forming base station; One is fixedly arranged on the driver element of this pedestal, and this driver element is connected with a doctor unit, and this is coated with knifing machine automatically and also comprises a coated substrates, and it is located on this film forming base station, between this pedestal and this doctor unit; This doctor unit comprises: one scrapes knife support, and it comprises that two side plates and cross at the crossbeam at this biside plate top; Hang down and establish a scraper in the below of this crossbeam, this scraper is connected with this crossbeam elasticity through an elastic component; And one or more thickness adjusting devices, it is located at this crossbeam top, contacts with the end face of this scraper.The prepared film of automatic coating knifing machine moulding separately in this utility model can moulding on base material as required, and utilize the thickness adjusting device to make the thickness of finished film even, error is little, precision is high, can accurately control filming technology.
Application number is that 201110150780.4 Chinese invention patent discloses a kind of based on monolithic processor controlled automatic flat membrane casting equipment; Can realize the automatic production of flat sheet membrane, this device comprises that parameter setting and display circuit, temperature survey and control circuit, Electric Machine Control and transmission circuit and mechanical drive department are grouped into.Wherein parameter setting and display circuit are accomplished by touch-screen; Can realize the size of production flat sheet membrane specification and the temperature setting of heating plate; Temperature survey and control circuit are made up of digital temperature sensor and low-voltage heater; Temperature controlling is to be regulated by chip microcontroller PID, and Electric Machine Control and transmission circuit drive scraper by the Single-chip Controlling stepper motor and on slide rail, move and realize, the moving around by the completion jointly of stepper motor and position sensor of scraper; The thickness of institute's die is that the height by scraper determines, and the height of scraper can be realized accurately regulating with micrometer head.
In the existing plate knifing machine, what have is not provided with heating unit (as 200510049569.8), become film to move to just to heat-treat on the warm table, become artificially to damage film in the film substrate process, influence film quality moving; Some is provided with infrared ray heating temperature control device, and its temperature field skewness influences quality of forming film; Some is that scraper is heated, rather than film is heated.
The utility model content
The utility model provides a kind of film-forming temperature even, controlled plate knifing machine to the deficiency of prior art.
A kind of plate knifing machine comprises frame, front panel and side panel, and frame comprises base and pillar; It is characterized in that: on base, fixing a screw rodb base and first motor, screw mandrel is installed in the screw rodb base, and first motor is connected with screw mandrel through shaft coupling; The screw mandrel overcoat is followed the stroke piece; Fixing push-rod frame on the stroke piece, thermal insulation board is fixed on the pillar, sets gradually electric hot plate and heat-conducting plate on the thermal insulation board; The top of heat-conducting plate is provided with the push rod that is fixed on the push-rod frame, also is provided with the scraper hold down gag on the push-rod frame.First motor is a stepper motor, can realize rotating and reverse, and realizes knifing or backhaul withdrawing thereby parts such as the stroke piece on the drive screw mandrel, push-rod frame, scraper advance.In the utility model, through changing the film that scraper prepares different-thickness.Electric hot plate preferably uses the METAL HEATING PROCESS silk that gathers as heating source, with the stainless sheet steel encapsulation, can guarantee homogeneous heating with empire cloth parcel back, and be easy to change.
Above-mentioned plate knifing machine; The forward or reverse of first motor can come Artificial Control through a three-position switch is set, and controller preferably is set, and controls first motor through controller; Not only can be used to control the forward or reverse of first motor, can also be used to control its velocity of rotation.
The temperature of film can be stabilized in the temperature that sets when making knifing, and above-mentioned plate knifing machine also comprises the temperature sensor of the temperature that is used to measure heat-conducting plate, and temperature sensor links to each other with controller, and heat-conducting plate is controlled by the controller.Temperature sensor passes to controller with the temperature information of heat-conducting plate, and controller is controlled the electric current of electric hot plate according to the comparing result of the temperature of temperature that sets and heat-conducting plate.
Further, front panel is provided with display module and keyboard, and display module all links to each other with controller with keyboard.Through keyboard and display module, can be easily the running parameter of knifing machine be provided with.
Further, above-mentioned plate knifing machine also comprises automatic liquid-dropping mechanism, and automatic liquid-dropping mechanism is controlled by the controller.
Further, automatic liquid-dropping mechanism comprises second motor, and second motor links to each other with driving gear; Connecting gear band on the driving gear; A bit of being fixed in of gear band can be along the sliding shoe of polished rod slip, and liquid droping head is fixed on the sliding shoe, and liquid droping head links to each other with peristaltic pump through flexible pipe; Second motor is controlled by the controller, and peristaltic pump also is controlled by the controller.During the second motor driven gear band, sliding shoe and liquid droping head together with the time move, when liquid droping head moves to the position that needs dropping liquid, start peristaltic pump by controller and realize automatic dropping liquid.
Further, automatic liquid-dropping mechanism comprises clamping seats, and clamping seats is fixed on the heat-conducting plate, and the first polished rod seat and the second polished rod seat that lay respectively at the polished rod two ends all are fixed on the clamping seats, and second motor also is fixed on the clamping seats.
Further; At the two ends of screw mandrel first limit switch and second limit switch are being set respectively; First limit switch all links to each other with controller with second limit switch; The first polished rod seat is provided with the 3rd limit switch, and the second polished rod seat is provided with the 4th limit switch, and the 3rd limit switch all links to each other with controller with the 4th limit switch.When the stroke piece on the screw mandrel touched first limit switch or second limit switch, controller can make the first motor stall at once or change rotation direction.When sliding shoe touched the 3rd limit switch or the 4th limit switch, controller can make the second motor stall at once or change rotation direction.
The control method of above-mentioned plate knifing machine:
1) is arranged to film temperature, dropping liquid interval, liquid droping speed, knifing speed and scrapes film length through keyboard;
2) controller makes the temperature stabilization of heat-conducting plate at set film-forming temperature through the electric current of control electric hot plate;
3) controller is interval according to set dropping liquid, controls the rotation of second motor and makes liquid droping head in the dropping liquid interval, drive peristaltic pump in the translation, realizes automatic dropping liquid, and controls the dropping liquid amount according to set liquid droping speed;
4) controller is controlled first rotating speed of motor and direction according to set knifing speed, and the speed of push-rod frame is consistent with set knifing speed.
In the plate knifing machine of the utility model, the top of electric hot plate is a heat-conducting plate, during knifing; Usually substrate is placed on the top of heat-conducting plate, knifing on substrate, substrate is generally glass flake; The surface temperature of heat-conducting plate is even, can be according to the surface temperature of system film needs adjustment heat-conducting plate; Regularly cooling pattern can be set in the program of controller, adjust cool time as required, can directly on substrate, carry out the heat treatment of special time after the film forming, research institute becomes the phase separation of film.In organic photovoltaic devices, the difference degree that is separated is very big to the thin-film device performance impact, uses the plate knifing machine of the utility model, can prepare repeatability, the good organic photovoltaic devices of uniformity.The below of electric hot plate is a thermal insulation board, thereby makes (like controller etc.) temperature of instrument internal parts be unlikely to too high.
As the knifing platform, surface smoothness can be guaranteed with glass flake, to the requirement of integral body location, is beneficial to the enforcement of scheme when having reduced instrument processing; Glass flake plays heat-conducting plate surface protection effect simultaneously, avoids polluting heat-conducting plate, and is easy to clean, solved the problem of Corrosive Materia film forming; Can directly change glass flake after the film forming, efficient is high.
In the plate knifing machine of the utility model, push rod and scraper are not fixed together, knifing when push rod promotes the scraper motion, and scraper can not followed and returned during return, avoids polluting the film of firm formation, the convenient finished film of extracting; Through the control of controller, can adjust knifing speed and scraper displacement (being equivalent to scrape film length).
The scraper that the utility model uses be " [" formula scraper, as shown in Figure 6, slit and scraper width are processed according to demand, can accurately control precision height, and then quality of forming film is good; The scraper two ends directly contact with substrate, as long as the smooth knifing that gets final product of substrate surface; Restriction thin-film width in scraper two ends is avoided solution to flow out from both sides and is polluted instrument.
Use adjustable peristaltic pump as the solution means of delivery, flow velocity is adjustable, and solution is only inner through pump line; Do not contact with the pump housing, avoid exporting solution and polluted, pump line has only one everywhere in compressive state; Solution can not reflux, and has avoided bottle interior solution to be polluted, and pump line is convenient to clean and change; Repeatedly get pollution that liquid brings and loaded down with trivial details when automatically the use of dropping liquid unit has been avoided repeating knifing, and toxic solvent is to the injury of human body.
The utility model is simple to operate, can prepare that thickness is even, error is little, precision is high, the large area film of regular shape.Membrance casting condition quantizes, favorable repeatability.Repeatedly get the pollution that liquid brings when automatically the dropping liquid function has been avoided repeating knifing, and toxic solvent is to the injury of human body, and can accurately controls the drips of solution amount, reduce the loss of solution; Can be adjusted to film temperature according to demand, the substrate surface temperature is even, can directly place heat treatment on the knifing machine after the film forming, avoids in the past moving film substrate behind the knifing and heat-treats the damage that brings; The length and width of film, thickly all can accurately control; Film forming speed is fast; Substrate is easy to change, can be on hard or soft substrate plate film forming; Scraper can be convenient to change according to Demand Design.
Description of drawings
Fig. 1 is one of structural representation of plate knifing machine;
Fig. 2 be plate knifing machine structural representation two;
Fig. 3 be plate knifing machine structural representation three;
Fig. 4 is the part-structure sketch map of automatic liquid-dropping mechanism;
Fig. 5 is the structural representation of peristaltic pump;
Fig. 6 is the structural representation of scraper.
Shown in the figure: 1: base; 2: side panel; 3: front panel; 4: display module; 5: keyboard; 6: thermal insulation board; 7: electric hot plate; 8: heat-conducting plate; 9: glass flake; 10: fastening bolt; 11: pillar; 12: the first limit switches; 13: the second limit switches; 14: screw rodb base; 15: scraper; 16: push-rod frame; 17: push rod; 18: the first motors; 19: shaft coupling; 20: screw mandrel; 21: the stroke piece; 22: the three limit switches; 23: the second motors; 24: driving gear; 25: gear band; 26: clamping seats; 27: the gear band slack adjuster; 28: set screw; 29: the first polished rod seats; 30: polished rod; 31: sliding shoe; 32: liquid droping head; 33: charging aperture; 34: discharging opening; 35: peristaltic pump; 36: the speed governing knob; 37: depression bar; 38: the liquid droping head interface; 39: the four limit switches; 40: the second polished rod seats; 41: driven gear.
The specific embodiment
To shown in Figure 6, frame is made up of base 1 and Duo Gen pillar 11 like Fig. 1, and screw rodb base 14 is fixed on the base 1, and screw mandrel 20 is fixed on the screw rodb base 14.It is fast that the screw mandrel transmission has translational speed, and the location accurately vibrates little advantage.First motor 18 is connected with screw mandrel 20 through shaft coupling 19, and first motor 18 drives screw mandrel 20 and rotates, and does rectilinear motion thereby drive stroke piece 21.First motor 18 can be selected stepper motor or servomotor for use according to the knifing speed requirement.With the stepper motor is example, through the single-chip microcomputer signal controlling, is driven by stepper motor driver, can accurately locate and control the speed of scraper.A plurality of gears are set in control program, are convenient to study of the influence of different knifing speed film forming.The parameter of scraper speed and scraper stroke is set, changes according to demand before the knifing.
Screw mandrel 20 two ends are equipped with first limit switch 12 and second limit switch 13 respectively, produce interrupt signal when stroke piece 21 bump first limit switches 12 or second limit switch 13, can prevent that operate miss from damaging instrument, plays the effect of initial alignment simultaneously.
Push-rod frame 16 is fixed on the stroke piece 21, is made with stainless steel materials, opens a plurality of bar holes at two ends, is used for fixing push rod 17, depression bar 37 and other accessories.The motion of stroke piece 21 finally promotes scraper 15 knifing, and depression bar 37 is pushed down scraper 15 through spring and gravity acting in conjunction, avoids stressed lifting in scraper 15 motions, and tiny parts do not draw among the figure.
It is very big that the quality of a lot of films is influenced by film-forming temperature, and existing knifing machine nearly all is not with heating function, brings inconvenience to use.The knifing machine of the utility model uses one or more temperature sensors to survey the temperature of heat-conducting plate 8, through calibration, converts data signal again into and shows, and is convenient to observe.Electric hot plate 7 connects solid-state relay, through the break-make of single-chip microcomputer signal controlling solid-state relay.Solid-state relay long service life, reliability are high, control power is little, conversion fast, more accurate with temperature is controlled, it is littler to fluctuate.The parameter of heating-up temperature is set in the program of single-chip microcomputer, according to the demand setting, waits heat-conducting plate 8 to reach to be provided with and go knifing after the temperature again before the knifing.Also can on knifing machine, cool off as required after the film forming, can study the influence of cool time film forming.
Lay a glass flake 9 on the heat-conducting plate 8, glass flake 9 surfacings, convenient for cleaning, can be directly film forming in the above.The part film forming solution has corrosivity, or is difficult for cleaning, and directly the knifing in the metal surface uses glass flake 9 well to solve this problem.
Power module, controller, motor driver, solid-state relay and fan etc. all are fixed on the base 1, and these parts do not draw in the drawings.
Offer louvre on the side panel 2, front panel 3 is provided with display module 4, can be digitron display screen or LCDs.Keyboard 5 is provided with on the front panel 3, is used to be provided with parameter and control instrument.Keyboard 5 can adopt general membrane keyboard, establishes the 0-9 10 numeric keys, six function keys of A-F.
Automatic liquid-dropping mechanism is made from multiple components among Fig. 4, realizes the function of location output solution.Second motor 23 is fixed on the clamping seats 26, on the axle of second motor 23 driving gear 24 is housed, and another driven gear 41 is fixed on the gear band slack adjuster 27.Nut among the figure, tiny parts such as bearing do not draw.Degree of tightness through set screw 28 adjusting gear bands 25.
The first polished rod seat 29 and the second polished rod seat 40 are fixed on the clamping seats 26, are used to support polished rod 30.Polished rod 30 is parallel to glass flake 9 with gear band 25, and perpendicular to the direction of motion of scraper 15.
Sliding shoe 31 fastenings on gear band 25, the rotation driven gear band 25 of second motor 23, gear band 25 drives sliding shoes 31 and moves along polished rod 30.
Adorn the 3rd limit switch 22 on the first polished rod seat 29; Adorn the 4th limit switch 39 on the second polished rod seat 40; Can produce interrupt signal behind sliding shoe 31 bump the 3rd limit switches 22 or the 4th limit switch 39, prevent that operate miss from damaging instrument, can play the effect of initial alignment simultaneously.
Fixing liquid droping head 32 on the sliding shoe 31.
Among Fig. 5, peristaltic pump 35 is liquid transporting apparatus of a kind of controllable flow rate, and solution is towards a direction motion in will managing through the repeated compression elastic pump tubes.Solution is only inner through pump line, does not contact with the pump housing, avoids exporting solution and is polluted.Pump line has only one everywhere in compressive state, and solution can not reflux, and has avoided bottle interior solution to be polluted.Peristaltic pump 35 comprises speed governing knob 36 and charging aperture 33 and discharging opening 34, regulates solution transporting velocity in the peristaltic pump 36 through speed governing knob 36, and the solution transporting velocity is directly proportional with the output solution amount.Charging aperture 33 connects the solution bottle, and discharging opening 34 is connected to liquid droping head interface 38 through flexible pipe., multiple solution commonly used can be equipped with a plurality of peristaltic pumps, the convenient use when being arranged.
Claims (9)
1. plate knifing machine; Comprise frame, front panel (3) and side panel (2), frame comprises base (1) and pillar (11), it is characterized in that: on base, fixing a screw rodb base (14) and first motor (18); Screw mandrel (20) is installed in the screw rodb base (14); First motor (18) is connected with screw mandrel (20) through shaft coupling (19), and screw mandrel (20) overcoat is followed stroke piece (21), is fixing push-rod frame (16) on the stroke piece (21); Thermal insulation board (6) is fixed on the pillar (11); Set gradually electric hot plate (7) and heat-conducting plate (8) on the thermal insulation board (6), the top of heat-conducting plate (8) is provided with the push rod (17) that is fixed on the push-rod frame (16), and push-rod frame also is provided with the scraper hold down gag on (16).
2. plate knifing machine according to claim 1 is characterized in that electric hot plate (7) uses the METAL HEATING PROCESS silk that gathers as heating source, encapsulates with stainless sheet steel with empire cloth parcel back.
3. plate knifing machine according to claim 2 is characterized in that also comprising controller, and first motor (18) is controlled by the controller.
4. plate knifing machine according to claim 3 is characterized in that also comprising the temperature sensor of the temperature that is used to measure heat-conducting plate (8), and temperature sensor links to each other with controller, and electric hot plate (7) is controlled by the controller.
5. plate knifing machine according to claim 4 is characterized in that front panel (3) is provided with display module (4) and keyboard (5), and display module (4) all links to each other with controller with keyboard (5).
6. plate knifing machine according to claim 5 is characterized in that also comprising automatic liquid-dropping mechanism, and automatic liquid-dropping mechanism is controlled by the controller.
7. plate knifing machine according to claim 6; It is characterized in that automatic liquid-dropping mechanism comprises second motor (23); Second motor (23) links to each other with driving gear (24), is connecting gear band (25) on the driving gear (24), and a bit of being fixed in of gear band (25) can be along the sliding shoe (31) of polished rod (30) slip; Liquid droping head (32) is fixed on the sliding shoe (31); Liquid droping head (32) links to each other with peristaltic pump (35) through flexible pipe, and second motor (23) is controlled by the controller, and peristaltic pump (35) also is controlled by the controller.
8. plate knifing machine according to claim 7; It is characterized in that automatic liquid-dropping mechanism comprises clamping seats (26); The first polished rod seat (29) and the second polished rod seat (40) that lay respectively at polished rod (30) two ends all are fixed on the clamping seats (26); Second motor also is fixed on the clamping seats (26), and clamping seats (26) is fixed on the heat-conducting plate (8).
9. plate knifing machine according to claim 8; It is characterized in that at the two ends of screw mandrel (20) first limit switch (12) and second limit switch (13) being set respectively, first limit switch (12) all links to each other with controller with second limit switch (13); The first polished rod seat (29) is provided with the 3rd limit switch (22), and the second polished rod seat (40) is provided with the 4th limit switch (39), and the 3rd limit switch (22) all links to each other with controller with the 4th limit switch (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205189295U CN202343401U (en) | 2011-12-13 | 2011-12-13 | Flat plate type film scraping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205189295U CN202343401U (en) | 2011-12-13 | 2011-12-13 | Flat plate type film scraping machine |
Publications (1)
| Publication Number | Publication Date |
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| CN202343401U true CN202343401U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205189295U Expired - Fee Related CN202343401U (en) | 2011-12-13 | 2011-12-13 | Flat plate type film scraping machine |
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| Country | Link |
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| CN (1) | CN202343401U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527589A (en) * | 2011-12-13 | 2012-07-04 | 暨南大学 | Plate film scraping machine and control method thereof |
| CN103331241A (en) * | 2013-06-13 | 2013-10-02 | 暨南大学 | Flat-plate type film scraping machine capable of monitoring film-forming process |
| CN106239232A (en) * | 2016-08-31 | 2016-12-21 | 安徽池州家用机床股份有限公司 | A kind of milling machine table auto-feeder |
| CN109531779A (en) * | 2018-11-23 | 2019-03-29 | 浙江臻泰电子科技有限公司 | High precision small casting machine |
-
2011
- 2011-12-13 CN CN2011205189295U patent/CN202343401U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527589A (en) * | 2011-12-13 | 2012-07-04 | 暨南大学 | Plate film scraping machine and control method thereof |
| CN102527589B (en) * | 2011-12-13 | 2014-06-25 | 暨南大学 | Plate film scraping machine and control method thereof |
| CN103331241A (en) * | 2013-06-13 | 2013-10-02 | 暨南大学 | Flat-plate type film scraping machine capable of monitoring film-forming process |
| CN103331241B (en) * | 2013-06-13 | 2015-08-26 | 暨南大学 | A kind of plate knifing machine monitoring film forming procedure |
| CN106239232A (en) * | 2016-08-31 | 2016-12-21 | 安徽池州家用机床股份有限公司 | A kind of milling machine table auto-feeder |
| CN109531779A (en) * | 2018-11-23 | 2019-03-29 | 浙江臻泰电子科技有限公司 | High precision small casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141213 |
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| EXPY | Termination of patent right or utility model |