CN115871323A - Thick film paste printing apparatus for thermal printing plate - Google Patents

Abstract

The invention relates to the technical field of paste printing production, and provides thick film paste printing equipment for a thermal sensitive printing sheet, which comprises a frame, a printing mechanism and a switching mechanism, wherein the printing mechanism is provided with at least two silk screens, and the switching mechanism is used for moving the silk screens to the printing position of the printing mechanism; the turnover mechanism is provided with a turnover part and is used for turning over the thermal printing sheet substrate to realize double-sided printing, and the turnover mechanism is provided with a printing part and a shaping processing part; the shaping processing part comprises a drying and curing component and a quick-cooling shaping component, the drying and curing component is used for drying the electrode printing patterns printed on the thermosensitive printing sheet substrate to enable the electrode printing patterns to be rapidly cured, the quick-cooling shaping component is used for carrying out quick-cooling shaping on the electrode printing patterns after drying and curing, and the shaping processing part also comprises a quick-shaping auxiliary component.

Description

Thick film paste printing apparatus for thermal printing plate

Technical Field

The invention relates to the technical field of paste printing production, in particular to thick film paste printing equipment for a thermal sensitive printing sheet.

Background

The thermal printing sheet is an important component of a thermal printer and consists of an array of heating elements, the elements can generate high temperature quickly when passing a certain current, when a medium coating meets the elements, the temperature can rise in a very short time, the medium coating can generate chemical reaction and show color, and thick-film electronic paste is printed on a thermal printing sheet substrate by thick-film paste printing equipment in the production process and then is cured to form a circuit, so that the thermal elements can work normally.

The existing thick film paste printing equipment is generally a screen printer, thick film electronic paste is placed on the surface of a screen, the thick film electronic paste is printed on the surface of a thermal printing sheet substrate through the screen by moving a scraper, the thermal printing sheet substrate can only be printed on one side generally, circuits are arranged on two sides of the thermal printing sheet substrate, and double-side printing is required during production.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides thick film paste printing equipment for a thermal printing sheet, which aims to solve the problem that the prior art proposed in the background art is inconvenient for carrying out double-sided printing on a thermal printing sheet substrate.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the thick film paste printing equipment for the thermal sensitive printing sheet comprises a machine frame and a printing mechanism arranged on the machine frame, wherein at least two silk screens are arranged in the printing mechanism;

further comprising:

a switching mechanism with an electrode printing pattern switching function for moving the screen to a printing position of the printing mechanism;

the turnover mechanism is provided with a turnover part and a shaping processing part, wherein the turnover part is used for overturning the thermosensitive printing sheet substrate to realize double-sided printing, and the turnover mechanism is provided with a printing part and a shaping processing part, the printing part is used for supporting and fixing the thermosensitive printing sheet substrate before and after overturning, and the shaping processing part is used for assisting rapid primary curing of electrode printing patterns after single-sided printing of the thermosensitive printing sheet substrate;

design processing portion is including stoving solidification subassembly and fast cold design subassembly, the stoving solidification subassembly is used for drying to the electrode printing pattern after the thermal-sensitive printing piece base plate printing and makes its rapid solidification, the fast cold design subassembly is used for carrying out the fast cold design to the electrode printing pattern after the stoving solidification, simultaneously design processing portion is still including being used for carrying out the quick design auxiliary assembly that surrounds thermal-sensitive printing piece base plate at stoving solidification and fast cold design in-process.

In order to surround the thermosensitive printing sheet substrate in the drying and curing and quick-cooling shaping processes, the heating and cooling effects are concentrated in the range of the thermosensitive printing sheet substrate, and meanwhile, the transportation of the thermosensitive printing sheet substrate is prevented from being blocked;

the quick shaping auxiliary assembly further has a temperature insulation function so as to realize the temperature insulation of an external area of the thermosensitive printing sheet substrate.

In order to realize the sudden rapid drying of the motor printed after the single-sided thick film paste of the thermal printing sheet substrate is printed, the drying and curing assembly comprises a heating and warming component and a hot air flowing component, the heating and warming component and the hot air flowing component are both arranged inside the rapid shaping auxiliary assembly, the heating and warming component is used for heating and drying the thermal printing sheet substrate positioned inside the rapid shaping auxiliary assembly, and the hot air flowing component is used for assisting the flow of hot air and ensuring the pressure stability inside the rapid shaping auxiliary assembly.

For realizing the inside air flow of quick design auxiliary assembly, improve the stoving effect, avoid being heated the pressure simultaneously too big, hot-blast mobile part includes fan and air extractor, the fan is installed quick design auxiliary assembly's inside for the inside air flow of quick design auxiliary assembly, the convulsions end of air extractor with quick design auxiliary assembly intercommunication is used for taking the inside air of quick design auxiliary assembly out.

For the realization is stereotyped to the quick cooling after the thermal sensitive printing piece base plate stoving solidification, the quick cooling design subassembly includes refrigeration plant and temperature sensor, refrigeration plant's delivery outlet with quick design auxiliary assembly intercommunication for cool down to quick design inside air of auxiliary assembly and thermal sensitive printing piece base plate, temperature sensor installs quick design auxiliary assembly's inside for monitor the inside temperature of quick design auxiliary assembly.

In order to realize the conversion of the positions of the plurality of silk screens and thus the replacement of the two-sided electrode printing patterns of the thermal printing sheet substrate, the conversion mechanism comprises a lifting component and a printing silk screen moving component, the printing silk screen moving component is used for moving the horizontal positions of the silk screens, and the lifting component is used for adjusting the heights of the plurality of silk screens.

The thermal printing sheet substrate is moved to a printing position of the printing mechanism for realizing the transportation of the thermal printing sheet substrate, and the transfer mechanism with an intermittent transfer station function is further included for intermittently conveying the thermal printing sheet substrate to the printing position of the printing mechanism.

In order to realize the lifting of the thermal printing sheet substrate, the operations of turning, printing and the like, the printing part can drive the thermal printing sheet substrate to carry out lifting printing so as to match the turning part to turn the thermal printing sheet substrate and the printing of the printing mechanism.

(III) advantageous effects

Compared with the known public technology, the thick film paste printing equipment for the thermal printing sheet has the following beneficial effects:

1. according to the invention, the printing part can drive the thermal printing sheet substrate to ascend to the silk screen, the printing mechanism is used for printing thick film slurry on the thermal printing sheet substrate, the printing part drives the thermal printing sheet substrate to descend to the overturning part after printing, the overturning part overturns the thermal printing sheet substrate, the printing part drives the thermal printing sheet substrate to ascend to the printing position, and thick film slurry printing is carried out on the other side of the thermal printing sheet substrate.

2. According to the invention, the printing area of the thermosensitive printing sheet substrate after single-sided printing can be quickly dried and solidified through the drying and solidifying assembly, then the thermosensitive printing sheet substrate after drying and solidifying is quickly cooled and shaped through the quick-cooling shaping assembly, in the process, the printing area of the thermosensitive printing sheet substrate is surrounded through the quick-shaping auxiliary assembly, so that the action positions of drying, solidifying and quick-cooling shaping are accurately positioned in the printing area of the thermosensitive printing sheet substrate, meanwhile, other components and the like outside the printing position are protected in a heat insulation manner, and the printing area is turned over after being shaped, so that the quality problem caused by thick film slurry flowing can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 1 at C;

FIG. 5 is a schematic perspective view of another embodiment of the present invention;

FIG. 6 is a schematic perspective view of the printing part and the rotating frame according to the present invention;

FIG. 7 is a schematic perspective view of a printing mechanism according to the present invention;

FIG. 8 is an enlarged partial schematic view of FIG. 7 at D in accordance with the present invention;

FIG. 9 is an enlarged partial schematic view of FIG. 7 at E in accordance with the present invention;

FIG. 10 is a schematic perspective view of the rapid prototyping auxiliary assembly and the rapid cooling prototyping assembly of the present invention;

fig. 11 is a schematic perspective view of the rapid prototyping auxiliary assembly of the present invention.

The reference numerals in the drawings denote:

1. a frame;

100. a transfer mechanism; 101. a sliding feeding plate;

200. a step-by-step reciprocating feeding assembly; 201. a feeding track; 202. a second motor; 203. a first ball screw;

300. a printing section; 301. a third electric cylinder; 302. a vacuum chuck;

400. a turning part; 401. a support frame; 402. a first motor;

500. a rotating frame; 501. a turntable; 502. a connecting rod;

600. positioning the clamping assembly; 601. a fourth electric cylinder; 602. a clamping plate;

700. a printing mechanism; 701. a mounting frame; 702. a scraper; 703. ink returning knife; 704. a first electric cylinder; 705. a screen frame; 706. a screen mesh;

800. a reciprocating assembly; 801. a third motor; 802. a second ball screw; 803. a slide bar; 804. a reciprocating motion seat;

900. a switching mechanism; 901. a second electric cylinder; 902. a conversion frame;

1000. a printing screen moving assembly; 1001. a fourth motor; 1002. a gear; 1003. a rack;

1100. a quick sizing aid assembly; 1101. the heat insulation cover can be spliced; 1102. a thermal shield opening/closing member;

1200. drying and curing the assembly; 1201. a heating temperature raising means;

1300. a hot air flowing member; 1301. a fan; 1302. an air extractor;

1400. a quick cooling and shaping component; 1401. a refrigeration device; 1402. and a temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 to 9, a thick film paste printing apparatus for thermal printing sheet includes a frame 1, a transfer mechanism 100 with an intermittent transfer station function, a printing mechanism 700 for printing a thermal head printing sheet substrate, and a turnover mechanism for turning over the thermal printing sheet substrate, where the frame 1 is a thick film paste printing cabinet, and the turnover mechanism includes a turnover portion 400 and a printing support portion 300.

Referring to fig. 1 and 5, the transfer mechanism 100 penetrates through the frame 1, the transfer mechanism 100 includes a plurality of sliding feed plates 101 and a step-by-step reciprocating feed assembly 200 for driving the sliding feed plates 101 to reciprocate, the step-by-step reciprocating feed assembly 200 includes a feed rail 201, a second motor 202 and a first ball screw 203, a through mounting hole is formed in the frame 1, i.e., a thick film paste printing cabinet, the feed rail 201 is fixedly mounted inside the mounting hole and penetrates through the frame 1, the second motor 202 is fixedly mounted on the feed rail 201, the sliding feed plates 101 and the feed rail 201 are in sliding fit, the first ball screw 203 is fixedly mounted at an output end of the second motor 202, a first nut adapted to the first ball screw 203 is arranged on the sliding feed plate 101, the first ball screw 203 can be driven to rotate by the second motor 202, the sliding feeding plate 101 can be moved by the cooperation of the first nut and the first ball screw 203 and the limiting effect of the feeding track 201 on the sliding feeding plate 101, the distances between the sliding feeding plates 101 are equal, the distances between the stations are also equal, the sliding feeding plate 101 can drive the thermal printing sheet substrate to move to each station such as a printing station, a drying station and the like, the second motor 202 is a stepping motor, the rotation angle of the stepping motor is set, and the moving distance of the sliding feeding plate 101 can be the distance between the two sliding feeding plates 101, namely the distance between the two stations;

referring to fig. 6, a printing part 300 for placing and driving a thermal printing sheet substrate to lift is installed on the sliding feeding plate 101, the printing part 300 is used for supporting and fixing the thermal printing sheet substrate before and after overturning, the printing part 300 includes a third electric cylinder 301 and a vacuum chuck 302, the third electric cylinder 301 is fixedly installed at the top end of the sliding feeding plate 101, the vacuum chuck 302 is installed at the output end of the third electric cylinder 301 and is used for adsorbing and fixing the thermal printing sheet substrate, the vacuum chuck 302 is a conventional device known to those skilled in the art, and is provided with a vacuum pumping system matched with the vacuum chuck 302, so that the vacuum pumping system can pump the vacuum at the position of the vacuum chuck 302, adsorb and fix the thermal printing sheet substrate at the top of the vacuum chuck 302, thereby ensuring the stability of the thermal printing sheet substrate, and the vacuum chuck 302 can be driven to lift by the third electric cylinder 301 to adjust the height of the thermal printing sheet substrate.

Referring to fig. 6, the turning part 400 turns the thermal printing sheet substrate to realize double-sided printing, the turning part 400 includes a rotating frame 500, the top end of the sliding feeding plate 101 is fixedly connected with a supporting frame 401, the rotating frame 500 is rotatably installed between the supporting frames 401, a first motor 402 is installed on the supporting frame 401, the output end of the first motor 402 is connected with the rotating frame 500, the rotating frame 500 includes two turntables 501 and a plurality of connecting rods 502, the turntables 501 are rotatably installed on the supporting frames 401, the connecting rods 502 are connected between the two turntables 501, a positioning and clamping assembly 600 for clamping and positioning the thermal printing sheet substrate is installed on the rotating frame 500, the positioning and clamping assembly includes a plurality of fourth electric cylinders 601 and a plurality of clamping plates 602, the fourth electric cylinders 601 are installed on the rotating frame 500, the clamping plates 602 are installed at the output ends of the corresponding fourth electric cylinders 601, as can be seen from the figure, the number of the fourth electric cylinders 601 is four, two fourth electric cylinders 601 of the four fourth electric cylinders 601 are respectively installed on the corresponding rotary discs 501, the other two fourth electric cylinders 601 are installed between the plurality of connecting rods 502 through the installation plate, the corresponding two fourth electric cylinders 601 are symmetrically arranged on both sides of the vacuum chuck 302, the clamping plate 602 can be driven by the fourth electric cylinders 601 to move towards the center position of the rotating frame 500, the edge of the clamping plate 602 contacts with the edge of the thermal print sheet substrate, the four fourth electric cylinders 601 move synchronously, the thermal print sheet substrate is limited at the center position of the rotating frame 500, the two rotary discs 501 can be driven by the first motor 402 to rotate, and the output shaft of the first motor 402 rotates 180 degrees, so as to turn over the thermal print sheet substrate.

The elevation height of the third electric cylinder 301, which is provided with three elevation positions, a printing position, a clamping position, and a turning position, may be set in advance. The printing position is at the highest position, and the thermal printing sheet substrate is positioned at the bottom of the silk screen 706; the clamping position is located at the middle position, at the moment, the thermal printing sheet substrate is located at the center of the rotating frame 500, and the clamping plate 602 can be driven by the fourth electric cylinder 601 to clamp the thermal printing sheet substrate; the turning position is at the lowest position, at this time, the thermal printing sheet substrate is separated from the vacuum chuck 302, and the thermal printing sheet substrate is positioned outside the rotating frame 500 by the vacuum chuck 302, so that the rotation of the rotating frame 500 is prevented from being blocked.

Referring to fig. 7 and 8, the printing mechanism 700 includes a mounting frame 701, a doctor blade 702, an ink returning blade 703, a reciprocating assembly 800 for driving the doctor blade 702 and the ink returning blade 703 to reciprocate, two first electric cylinders 704, two screen frames 705 and two screen nets 706, the two screen nets 706 are respectively provided with patterns on two sides of a thermal printing sheet substrate, the mounting frame 701 is installed inside the frame 1, the reciprocating assembly 800 and the screen frames 705 are both installed on the mounting frame 701, the first electric cylinders 704 are installed on the reciprocating assembly 800, the doctor blade 702 and the ink returning blade 703 are respectively installed at output ends of the corresponding first electric cylinders 704, the screen nets 706 are installed inside the corresponding screen frames 705, the reciprocating assembly 800 includes a third electric motor 801, a second ball screw 802, a plurality of sliding rods 803 and a reciprocating base 804, the third electric motor 801 and the plurality of sliding rods 803 are both installed on the mounting frame 701, the second ball screw 802 is rotatably installed on the mounting frame 701, the second ball screw 802 is fixedly installed at an output end of the third electric motor 801, the reciprocating base 804 and the reciprocating base 804 are installed on the reciprocating base 804 and the reciprocating base 804 are in a sliding fit with the electric cylinders 804;

the third motor 801 can drive the second ball screw 802 to rotate, the reciprocating base 804 can be moved by the cooperation of the second nut and the second ball screw 802 and the limiting effect of the plurality of sliding rods 803 on the reciprocating base 804, the scraper 702 and the ink return knife 703 can be driven to move, the scraper 702 and the ink return knife 703 can be driven to lift by the first electric cylinder 704, the first electric cylinder 704 drives the scraper 702 to descend during printing, the ink return knife 703 is at a higher position, the third motor 801 drives the scraper 702 to move along the second ball screw 802, the scraper 702 is tightly pressed on the surface of the screen 706, thick film paste on the surface of the screen 706 is printed on a thermal printing substrate through the gap of the screen 706, circuit printing is performed, after printing is completed, the first electric cylinder 704 drives the scraper 702 to ascend, the other first electric cylinder 704 drives the ink return knife 703 to descend to contact with the screen 706, thick film paste on the surface of the screen 706 is uniformly coated, preparation for next thick film paste printing is repeated, the processing mode is the same as that of the existing screen printing machine, and the screen printing machine does not need to perform limitation on the screen 706.

Example 2

Referring to fig. 7 to 9, based on embodiment 1, the thick film paste printing apparatus for thermal printing sheet in embodiment 2 further includes a switching mechanism 900 with a pattern switching function, where the switching mechanism 900 includes an elevating assembly, the printing screen moving assembly is configured to move horizontal positions of screens, the elevating assembly is configured to adjust heights of the screens, the elevating assembly includes a plurality of second electric cylinders 901 and two switching frames 902, the second electric cylinders 901 are mounted on the mounting rack 701, the switching frames 902 are connected to a plurality of sliders, the mounting rack 701 is provided with a plurality of sliding grooves matching the sliders, the sliders are located inside the sliding grooves to achieve sliding fit between the switching frames 902 and the mounting rack 701, the switching frames 902 and output ends of the second electric cylinders 901 are connected, the screen frame 705 is located between the two switching frames 902, moving blocks are fixedly connected to two ends, close to the two conversion frames 902, of the screen frame 705, moving grooves matched with the moving blocks are formed in the conversion frames 902, the moving blocks are located inside the moving grooves to achieve sliding fit of the screen frame 705 and the conversion frames 902, a printing screen moving assembly 1000 used for driving the two screen frames 705 to slide is installed on the conversion frames 902, the printing screen moving assembly 1000 comprises a fourth motor 1001, two gears 1002 and four racks 1003, the fourth motor 1001 is installed on the conversion frames 902, the two gears 1002 are rotatably installed between the two conversion frames 902 through rotating shafts, the rotating shafts are fixedly installed at the output ends of the fourth motor 1001, the gears 1002 are located between the two screen frames 705, the two screen frames 705 are in central symmetry relative to the centers of the gears 1002, the racks 1003 are fixedly connected with the corresponding screen frames 705, and the racks 1003 are meshed with the corresponding gears 1002;

the fourth motor 1001 can drive the rotating shaft and the two gears 1002 to rotate, the rack 1003 and the screen frame 705 are moved through the meshing of the rack 1003 and the gears 1002, the two screen frames 705 are moved relatively through the rotation of the gears 1002, namely, when one screen frame 705 moves to a printing area, the other screen frame 705 is located at a position far away from the printing area, the second electric cylinder 901 can drive the conversion frame 902 to lift, the heights of the two screens 706 are different, and the heights of the two screens 706 are adjusted through the second electric cylinder 901, so that the screens 706 located in the printing area, namely the screens 706 located below the scraper 702, are located at the same height during printing.

Example 3

Referring to fig. 1, 5, 10 and 11, based on the embodiments 1 and 2, the turnover mechanism in embodiment 3 further includes a shaping processing portion for assisting the rapid preliminary curing of the electrode printed patterns after the single-sided printing of the thermal print sheet substrate, where the shaping processing portion includes a drying and curing component 1200 and a rapid cooling and shaping component 1400, the drying and curing component 1200 is used to dry and rapidly cure the electrode printed patterns after the printing of the thermal print sheet substrate, the rapid cooling and shaping component 1400 is used to rapidly cool and shape the electrode printed patterns after the drying and curing, and the shaping processing portion further includes a rapid shaping assisting component 1100 for surrounding the thermal print sheet substrate during the drying and curing and rapid cooling and shaping processes.

Referring to fig. 10 and 11, a rapid prototyping auxiliary assembly 1100 includes a plurality of spliceable heat-insulating covers 1101 and a heat-insulating cover opening/closing part 1102 for assembling and separating the spliceable heat-insulating covers 1101, the heat-insulating cover opening/closing part 1102 may be an electric cylinder, the electric cylinder is mounted on an inner wall of the rack 1, the spliceable heat-insulating covers 1101 are connected to an output end of the electric cylinder, as can be seen from the figure, the number of spliceable heat-insulating covers 1101 is two, a groove body adapted to the turning part 400 is formed on the spliceable heat-insulating covers 1101, the rapid prototyping auxiliary assembly 1100 further has a heat-insulating function to insulate an outer region of a thermal print substrate, the spliceable heat-insulating covers 1101 can be driven to approach or separate from each other by the output end of the electric cylinder, the plurality of spliceable heat-insulating covers 1101 approach each other and are enclosed into a closed cavity, the thermal print substrate printed with a single-sided thick film paste is enclosed, and heating and cooling effects during drying, curing and cooling effects are concentrated in the spliceable heat-insulating covers 1101, and cooling effects are remarkable.

Referring to fig. 10 and 11, in order to realize the abrupt rapid drying of the motor printing after printing the single-sided thick film paste on the thermal printing sheet substrate, the drying and curing assembly 1200 includes a heating temperature-raising component 1201 and a hot air flowing component 1300, both the heating temperature-raising component 1201 and the hot air flowing component 1300 are installed inside the rapid prototyping auxiliary assembly 1100, the heating temperature-raising component 1201 is used to heat and dry the thermal printing sheet substrate located inside the rapid prototyping auxiliary assembly 1100, the heating temperature-raising component 1201 may use a resistance wire or a heating plate, the resistance wire or the heating plate is installed inside the corresponding splittable temperature-insulating cover 1101, the hot air flowing component 1300 is used to assist the flow of hot air and ensure the pressure inside the rapid prototyping auxiliary assembly 1100 to be stable, the hot air flowing component 1300 includes a fan 1301 and an air extractor 1302, the fan 1301 is installed inside the rapid prototyping auxiliary assembly 1100 and is used to flow air inside the rapid prototyping auxiliary assembly 1100, and the air outlet of the fan 1301 is far away from the thermal printing sheet substrate to avoid the flowing of the thick film printing paste, the air exhaust end of the air exhauster 1302 is communicated with the quick shaping auxiliary component 1100, for drawing out air from the inside of the rapid prototyping auxiliary assembly 1100, external air may be introduced through gaps between the plurality of spliceable thermal shields 1101, the matching of the fan 1301 and the air extractor 1302 realizes the air flow inside the spliced heat insulation covers 1101, improves the heating and cooling rates, meanwhile, dust impurities and the like generated in the drying and fixing process can be extracted by the air extractor 1302, a dust collection box can be arranged on an air extraction pipeline of the air extractor 1302, a filter screen is arranged inside the dust collection box, an air extraction opening of the air extractor 1302 is positioned inside the filter screen, the filter screen can allow air to flow through, the dust is kept inside the dust collection box, and the dust impurities and the like are collected and processed.

Referring to fig. 10 and 11, in order to realize rapid cooling and shaping after drying and curing of the thermal print sheet substrate, the rapid cooling and shaping assembly 1400 includes a refrigeration apparatus 1401 and a temperature sensor 1402, an output port of the refrigeration apparatus 1401 is communicated with the rapid shaping auxiliary assembly 1100, and is used for cooling air inside the rapid shaping auxiliary assembly 1100 and the thermal print sheet substrate, the refrigeration apparatus 1401 may be an air cooler or a water cooler, and can convey cold air to the interior of the rapid shaping auxiliary assembly 1100 surrounded by a plurality of spliceable temperature-insulating covers 1101, so as to rapidly cool and shape electrode printed patterns on the thermal print sheet substrate with single-sided thick-film paste printed thereon, and simultaneously, when the electric cylinder drives the plurality of spliceable temperature-insulating covers 1101 to be away from each other, the high temperature generated by drying and curing is reduced, and components in a printed area are protected, the temperature sensor 1402 is installed inside the rapid shaping auxiliary assembly 1100, and is used for monitoring the temperature inside the rapid shaping auxiliary assembly 1100, and the refrigeration apparatus 1401 cools the environment to room temperature, and controls the refrigeration apparatus 1401 to be closed.

In summary, when the thick film paste printing apparatus for thermal printing sheet prints on the thermal printing sheet substrate, firstly, the third electric cylinder 301 drives the vacuum chuck 302 to be at the middle position, i.e. the clamping position, the plurality of initial clamping plates 602 are at positions far from the vacuum chuck 302, the thermal printing sheet substrate is placed on the top of the vacuum chuck 302, the fourth electric cylinder 601 is turned on, the fourth electric cylinder 601 drives the clamping plates 602 to move towards the thermal printing sheet substrate, the thermal printing sheet substrate is positioned at the central position of the rotating frame 500, the thermal printing sheet substrate is adsorbed on the top of the vacuum chuck 302 by the vacuum pumping system, the second motor 202 is turned on, the second motor 202 drives the first ball screw 203 to rotate, so that the slippage feeding plate 101 drives the thermal printing sheet substrate to move to the inside of the thick film paste printing machine case and be at the printing position, i.e. below the screen 706, controlling the fourth electric cylinder 601 to drive the clamping plate 602 to be far away from the thermal printing sheet substrate, controlling the third electric cylinder 301 to drive the vacuum chuck 302 and the thermal printing sheet substrate to ascend to a printing position, namely, the bottom of the screen 706, starting the third motor 801 and the first electric cylinder 704 controlling the scraper 702 to ascend and descend, driving the scraper 702 to descend and press the screen 706 surface, driving the second ball screw 802 to rotate by the third motor 801, driving the reciprocating base 804 to move, printing thick film paste on the screen 706 on the thermal printing sheet substrate by the scraper 702 through the mesh, then driving the scraper 702 to ascend by the first electric cylinder 704, driving the ink returning blade 703 to descend by the other first electric cylinder 704, simultaneously driving the ink returning blade 703 to move to the original position by the second motor 202 reversing, uniformly coating the thick film paste on the screen 706 surface, preparing for the next printing, and driving the vacuum chuck 302 and the thermal printing sheet substrate to descend to the rotating frame 500, namely, the clamping position Opening a fourth electric cylinder 601 to drive a clamping plate 602 to clamp a thermal printing sheet substrate, removing the adsorption effect of a vacuum chuck 302 on the thermal printing sheet substrate, opening the electric cylinder, driving a plurality of spliceable thermal insulation covers 1101 to be close to each other by a thermal insulation cover opening and closing part 1102 to surround the thermal printing sheet substrate, a positioning and clamping assembly 600 and the like, opening a heating and warming part 1201 to heat, drying and curing electrode printing patterns on the thermal printing sheet substrate subjected to single-sided printing, allowing hot air to flow by a fan 1301, pumping air inside the spliceable thermal insulation covers 1101 by an air pump 1302, collecting impurities, after drying and curing for a certain time, driving the spliceable thermal insulation cover opening and closing part 1102 to separate the spliceable thermal insulation covers 1101 from each other to avoid interference with the operation of other parts, then continuing to drive a vacuum chuck 302 to descend to an overturning position by a third electric cylinder 301, starting a first motor 402 to drive a turntable 402 to rotate, overturning the thermal printing sheet substrate, then driving a third electric cylinder 301 to drive a vacuum chuck 302 to ascend to a thermal printing sheet substrate, continuing to adsorb the electric printing sheet substrate, driving a fourth electric cylinder 705 to move a screen frame 706, and a screen printing plate 501 to move a screen printing area 706, and a screen printing area 706 by a second electric cylinder 1002, and a third electric cylinder 1002, driving a second electric cylinder 1002 to move a screen printing plate 501 to move, and a screen printing plate 706 to control a screen printing area, and a screen printing area 706, the thick film paste printing of the surface can be carried out by repeating the operation, after the printing is finished, the third electric cylinder 301 drives the vacuum chuck 302 and the thermosensitive printing sheet substrate with finished double-sided printing to descend, in the printing process, a processing worker can install a new thermosensitive printing sheet substrate at the top of the next vacuum chuck 302, when the second motor 202 drives the sliding feeding plate 101 to move the printed thermosensitive printing sheet substrate to the next station after the printing is finished, the thermosensitive printing sheet substrate of the previous station just moves to a printing area, and the thick film paste printing of the thermosensitive printing sheet substrate can be carried out by continuously repeating the operation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. Thick film paste printing equipment for thermal printing sheets comprises a machine frame (1) and a printing mechanism (700) arranged on the machine frame (1), and is characterized in that at least two silk screens (706) are arranged in the printing mechanism (700);

further comprising:

a switching mechanism (900) with an electrode printing pattern switching function for moving the screen (706) to a printing position of the printing mechanism (700);

the turnover mechanism is provided with a turnover part (400) for turning over the thermal printing sheet substrate to realize double-sided printing, and the turnover mechanism is provided with a printing part (300) for supporting and fixing the thermal printing sheet substrate before and after turnover and a shaping processing part for assisting rapid primary curing of electrode printing patterns after single-sided printing of the thermal printing sheet substrate;

the design processing portion includes stoving solidification subassembly (1200) and fast cold design subassembly (1400), stoving solidification subassembly (1200) are used for drying to the electrode printing pattern after the printing of thermal sensitive printing piece base plate and make its rapid solidification, fast cold design subassembly (1400) are used for carrying out the fast cold design to the electrode printing pattern after the stoving solidification, simultaneously the design processing portion still includes and is used for carrying out quick design auxiliary assembly (1100) that surround to thermal sensitive printing piece base plate at stoving solidification and fast cold design in-process.

2. The thick film paste printing equipment for the thermal printing sheet according to claim 1, wherein the quick setting auxiliary assembly (1100) comprises a plurality of splicing heat insulation covers (1101) and a heat insulation cover opening and closing part (1102) for assembling and separating the splicing heat insulation covers (1101), the heat insulation cover opening and closing part (1102) is installed on the rack (1), the splicing heat insulation covers (1101) are connected with the heat insulation cover opening and closing part (1102), and grooves matched with the turnover parts (400) are formed in the splicing heat insulation covers (1101).

3. The thick film paste printing apparatus for thermal printing sheet according to claim 1, wherein said drying and curing assembly (1200) comprises a heating temperature raising part (1201) and a hot air flowing part (1300), said heating temperature raising part (1201) and said hot air flowing part (1300) are both installed inside said rapid prototyping auxiliary assembly (1100), said heating temperature raising part (1201) is used for heating and drying the thermal printing sheet substrate inside said rapid prototyping auxiliary assembly (1100), said hot air flowing part (1300) is used for assisting the hot air flow and ensuring the pressure inside said rapid prototyping auxiliary assembly (1100) to be stable.

4. The thick film paste printing apparatus for thermal printing sheet according to claim 3, wherein said hot air flowing part (1300) comprises a fan (1301) and an air extractor (1302), said fan (1301) is installed inside said quick setting auxiliary assembly (1100) for air flowing inside said quick setting auxiliary assembly (1100), an air extracting end of said air extractor (1302) is communicated with said quick setting auxiliary assembly (1100) for extracting air inside said quick setting auxiliary assembly (1100).

5. The thick film paste printing apparatus for thermal printing sheet according to claim 1, wherein said rapid cooling and shaping assembly (1400) comprises a cooling device (1401) and a temperature sensor (1402), an output port of said cooling device (1401) is communicated with said rapid shaping auxiliary assembly (1100) for cooling air inside the rapid shaping auxiliary assembly (1100) and a thermal printing sheet substrate, and said temperature sensor (1402) is installed inside said rapid shaping auxiliary assembly (1100) for monitoring temperature inside the rapid shaping auxiliary assembly (1100).

6. The thick film paste printing apparatus for thermal printing sheets according to claim 1, wherein said switching mechanism (900) comprises an elevating assembly and a printing screen (706) moving assembly, said printing screen (706) moving assembly being adapted to move the horizontal position of the screen (706), said elevating assembly being adapted to adjust the height of the plurality of screens (706).

7. The thick film paste printing apparatus for thermal printing blade according to claim 1, further comprising a transfer mechanism (100) with an intermittent transfer station function for intermittently transporting a thermal printing blade substrate to a printing position of said printing mechanism (700).

8. The thick film paste printing apparatus for thermal printing plates according to claim 1, wherein said printing section (300) can drive the thermal printing plate substrate to perform an up-and-down printing in coordination with the turning of the thermal printing plate substrate by said turning section (400) and the printing by said printing mechanism (700).

9. The apparatus of claim 1, wherein the rapid prototyping ancillary assembly (1100) further comprises a thermal insulation for insulating the outer region of the thermal print ribbon substrate.

Images