CN219214408U - Rail-mounted screen printer capable of automatically adjusting ink scraping pressure - Google Patents
Rail-mounted screen printer capable of automatically adjusting ink scraping pressure Download PDFInfo
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- CN219214408U CN219214408U CN202223289633.8U CN202223289633U CN219214408U CN 219214408 U CN219214408 U CN 219214408U CN 202223289633 U CN202223289633 U CN 202223289633U CN 219214408 U CN219214408 U CN 219214408U
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Abstract
The utility model discloses a track type screen printer capable of automatically regulating ink scraping pressure, wherein an ink scraping device comprises an ink scraping beam, an ink scraping knife, a pressure regulating mechanism and an angle regulating mechanism, the ink scraping beam is arranged between two positioning devices in a front-back sliding manner, an ink scraping driving device is in transmission connection with the ink scraping beam, the pressure regulating mechanism comprises a pressure driving component and a lifting sliding seat, the lifting sliding seat is arranged on the ink scraping beam in a vertically sliding manner, the pressure driving component is in transmission connection with the lifting sliding seat, the angle regulating mechanism is arranged on the lifting sliding seat, and the ink scraping knife is arranged on the angle regulating mechanism. The pressure regulating mechanism in the light scraping state is provided with a second driving stroke B, the pressure regulating mechanism in the heavy scraping state is provided with a third driving stroke C, the second driving stroke B is smaller than the third driving stroke C, and the second pressure F2 is larger than the first pressure F1. The inclination angle and the ink scraping force of the ink scraping knife are automatically adjusted, the printing effect is improved, the printable range is enlarged, and the requirements of different printing technologies are met.
Description
Technical Field
The utility model relates to the technical field of screen printers, in particular to a track type screen printer capable of automatically adjusting ink scraping pressure.
Background
The track type screen printer is provided with a printing table, a track is arranged on the printing table, a printing stock is arranged on the printing table, the screen printer slides on the track and can be respectively positioned and stopped on the printing stock, the screen printing plate is pressed on the printing stock, and ink is scraped on the printing stock through the screen printing plate by a doctor blade.
In the prior art, the distance between the doctor blade and the screen printing plate is usually adjusted in a manual or electric lifting mode, so that the ink scraping force is adjusted, the ink scraping force is constant in the ink scraping process, the ink scraping force cannot be adjusted in the ink scraping process, the inclination angle of the doctor blade is fixed, and the inclination angle of the doctor blade cannot be automatically adjusted, for example, when a printing stock is silica gel, the inclination angle of the doctor blade is required to be changed for printing, so that the screen printing machine in the prior art cannot automatically adjust the inclination angle and the ink scraping force of the doctor blade in the ink scraping printing process, the actual production needs and production procedures cannot be met, and therefore the screen printing machine is required to be improved.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the track type screen printer capable of automatically adjusting the ink scraping pressure, and the inclination angle and the ink scraping force of the ink scraping knife are automatically adjusted according to different printing stock and process requirements during printing, so that the printing effect is improved, and the printable range is enlarged.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the track type screen printing machine capable of automatically regulating ink scraping pressure comprises a printing table, a track and a printing machine body, wherein the track is fixedly arranged on the printing table, the printing machine body slides and walks on the track, the front side and the rear side of the printing machine body are respectively provided with a positioning device, the middle part of the printing machine body is slidably provided with an ink scraping device, the inside of the printing machine body is provided with an ink scraping driving device, the ink scraping driving device is in transmission connection with the ink scraping device, a screen printing plate is arranged between the two positioning devices,
the ink scraping device comprises an ink scraping beam, an ink scraping knife, a pressure regulating mechanism for driving the ink scraping knife to lift in the ink scraping process and an angle regulating mechanism for driving the ink scraping knife to rotate in the ink scraping process, the ink scraping beam is arranged between the two positioning devices in a sliding way, the ink scraping driving device is connected with the ink scraping beam in a transmission way,
the pressure adjusting mechanism comprises a pressure driving assembly and a lifting sliding seat, the lifting sliding seat is arranged on the ink scraping beam in a vertical sliding manner, the pressure driving assembly is in transmission connection with the lifting sliding seat, the angle adjusting mechanism is arranged on the lifting sliding seat, and the ink scraping knife is arranged on the angle adjusting mechanism;
the track type screen printer is provided with a light scraping state, a heavy scraping state and a return state,
the pressure adjusting mechanism in the light scraping state has a second driving stroke B, the doctor blade in the light scraping state has a first pressure F1 to the screen plate,
the pressure adjusting mechanism in the heavy scraping state has a third driving stroke C, the doctor blade in the heavy scraping state has a second pressure F2 to the screen plate,
the second driving stroke B is smaller than the third driving stroke C, and the second pressure F2 is larger than the first pressure F1.
In a further technical scheme, the angle adjusting mechanism comprises an angle driving assembly and a scraper mounting frame, the scraper mounting frame is rotatably arranged on the lifting sliding seat, the angle driving assembly is in transmission connection with the scraper mounting frame, and the scraper is fixedly arranged on the scraper mounting frame;
in the light scraping state, a light scraping included angle is formed between the scraping knife and the screen printing plate, the scraping driving device drives the scraping device to move from the front side of the screen printing plate to the rear side of the screen printing plate,
in the heavy scraping state, a heavy scraping included angle is formed between the scraping knife and the screen printing plate, the scraping driving device drives the scraping device to move from the front side of the screen printing plate to the rear side of the screen printing plate,
in the return state, the ink scraping driving device drives the ink scraping device to move from the rear side of the screen printing plate to the front side of the screen printing plate, a return clearance is arranged between the ink scraping knife and the screen printing plate,
the doctor blade is pressed against the top screen plate with a first pressure F1 in the light scraping state,
the doctor blade in the heavy doctoring state is pressed against the screen plate with a second pressure F2.
In further technical scheme, the scraper mounting bracket includes rotary rod, connecting plate and two scraper connecting pieces, and the upper portion fixed mounting of two scraper connecting pieces is in the left and right sides both ends of rotary rod, and scraper fixed mounting is in the lower part of two scraper connecting pieces, rotary rod swivelling mounting and lift slide, the first end fixed mounting of connecting plate is in the middle part of rotary rod, and the second end and the angle drive subassembly transmission of connecting plate are connected.
In further technical scheme, angle drive subassembly includes angle drive motor, angle drive lead screw, angle drive nut and angle driving piece, angle drive motor fixed mounting is in the lift slide, angle drive lead screw fixed mounting is in angle drive motor's output shaft, angle driving piece rotary mounting is in the second end of connecting plate, the mounting hole of running through angle driving piece from top to bottom has been seted up to the angle driving piece, angle drive nut inlays and locates the mounting hole, angle drive lead screw and angle drive nut threaded connection, the rotation axis and the rotary rod of angle driving piece are parallel.
In a further technical scheme, the pressure driving assembly comprises a pressure driving motor, a pressure driving screw rod and a pressure driving nut, wherein the pressure driving motor is fixedly arranged on the ink scraping beam, the pressure driving screw rod is fixedly arranged on an output shaft of the pressure driving motor, the pressure driving nut is fixedly arranged on the lifting sliding seat, and the pressure driving screw rod is in threaded connection with the pressure driving nut;
the left side and the right side of the upper part of the lifting sliding seat are respectively and fixedly provided with a pressure lifting guide pillar, the positions of the ink scraping cross beam corresponding to the two pressure lifting guide pillars are respectively provided with a pressure linear bearing, and the two pressure linear bearings are respectively in sliding fit with the two pressure lifting guide pillars.
In a further technical scheme, the left and right sides of the lower part of the lifting slide seat are respectively provided with a connecting baffle lug, the middle parts of the two connecting baffle lugs are provided with rotating holes which transversely penetrate through the connecting baffle lugs, the left and right ends of the rotating rod are respectively rotatably arranged in the rotating holes,
the lifting slide seat is also provided with a motor mounting seat, a first end of the motor mounting seat is fixedly mounted on the lifting slide seat, a second end of the motor mounting seat protrudes above the lifting slide seat and extends to the angle driving nut, and the angle driving motor is fixedly mounted on the motor mounting seat.
In further technical scheme, angle adjustment mechanism still is provided with automatic shutdown subassembly, automatic shutdown subassembly includes angle limit sensor, trigger plate and mounting panel, the first end fixed mounting of mounting panel is in the lift slide, angle limit sensor sets up in the second end of mounting panel, trigger plate installs in the one side that the connecting plate is close to angle limit sensor, the trigger plate is located angle limit sensor's below, angle limit sensor triggers the cooperation with the trigger plate, angle limit sensor and angle driving motor electric connection.
In a further technical scheme, the screen printing machine is further provided with an ink returning device, the ink returning device is arranged on the front side of the ink scraping device, the ink returning device comprises an ink returning lifting frame, an ink returning driving motor, an ink returning driving screw rod, an ink returning driving nut and an ink returning cutter, the ink returning lifting frame is arranged on the ink scraping cross beam in a sliding mode up and down, the ink returning driving nut is fixedly arranged on the upper portion of the ink returning lifting frame, the ink returning cutter is fixedly arranged on the lower portion of the ink returning lifting frame, the ink returning driving motor is fixedly arranged on the ink scraping cross beam, the ink returning driving screw rod is fixedly arranged on an output shaft of the ink returning driving motor, and the ink returning driving screw rod is in threaded connection with the ink returning driving nut;
in the return state, the ink return knife is in abutting fit with the screen printing plate.
In a further technical scheme, the ink return lifting frame comprises an ink return cross rod and two ink return guide posts, the two ink return guide posts are respectively and fixedly arranged at the left end and the right end of the ink return cross rod, the two ink return guide posts are vertically and slidably arranged on the ink scraping cross rod, the ink return knife is fixedly arranged at the lower ends of the two ink return guide posts,
the ink return lifting frame is also provided with an ink return transmission plate in a sliding manner, the left end and the right end of the ink return transmission plate are respectively and slidably arranged on the two ink return guide posts, the ink return transmission plate is positioned above the ink scraping cross beam, the ink return driving nut is fixedly arranged on the ink return transmission plate, and a buffer elastic piece is arranged between the ink return transmission plate and the ink return cross beam.
In a further technical scheme, the return clearance is 0.1-10 cm, the light scraping included angle is 45-90 degrees, and the heavy scraping included angle is 10-45 degrees.
By adopting the structure, compared with the prior art, the utility model has the following advantages: the lifting sliding seat is driven to lift by the pressure driving component, so that the propping pressure of the doctor blade to the screen printing plate is changed, the doctor device is switched among a light doctor state, a heavy doctor state and a return state in the same printing area in the printing process, the doctor pressure of the doctor blade is changed, and the printing effect is improved; the angle driving assembly drives the scraper mounting frame to rotate, so that the angle of the scraper is changed, the angle of the scraper is automatically adjusted in a light scraping state and a heavy scraping state, adjustable parameters are increased, different printing process requirements are met, and the printable range is enlarged; the inclination angle and the ink scraping pressure of the ink scraping knife are automatically adjusted, manual adjustment is not needed, the adjustment precision is higher, and the operation is more convenient.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of one of the structures of the ink scraping device and the ink returning device of the present utility model;
FIG. 3 is a second schematic diagram of the ink scraping device and ink returning device of the present utility model;
FIG. 4 is an exploded view of the ink scraping device of the present utility model;
fig. 5 is a state diagram of a light scraping state of the ink scraping device of the present utility model;
fig. 6 is a state diagram of a reprofiling state of the ink scraping device of the present utility model;
fig. 7 is a state diagram of a return state of the ink scraping device of the present utility model.
In the figure:
13 screen printing plate;
3, a printer body, a 34 positioning device, a 35 ink scraping beam and a 36 ink scraping knife;
81 pressure driving motors, 82 pressure driving screw rods, 83 pressure driving nuts, 84 lifting sliding seats, 841 connecting retaining lugs, 842 rotating holes, 843 motor mounting seats, 844 mounting plates, 85 pressure lifting guide posts and 86 pressure linear bearings;
91 angle driving motor, 92 angle driving screw rod, 93 angle driving nut, 94 angle transmission piece, 941 mounting hole, 95 rotary rod, 96 connecting plate, 97 scraper connecting piece, 98 angle limit sensor, 99 trigger plate;
21 ink return cross rod, 22 ink return guide pillar, 23 ink return driving motor, 24 ink return driving screw rod, 25 ink return driving nut, 26 ink return knife, 27 buffer elastic piece and 28 ink return driving plate.
Detailed Description
The following are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model.
It should be understood that the terms "front," "back," "left," "right," and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in fig. 1-3, and are "longitudinal" in the front-back direction and "transverse" in the left-right direction, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the protection of the present utility model.
The utility model provides an automatically regulated scrapes rail mounted screen printer of ink pressure, as shown in fig. 1 through 7, including the printing table, track and printing press body 3, the track is fixed to the printing table, printing press body 3 slides and walks in the track, the front side and the rear side of printing press body 3 are provided with positioner 34 respectively, the mid-section slidable mounting of printing press body 3 has the scraper, the inside of printing press body 3 is provided with scrapes ink drive arrangement, it connects the scraper to scrape the ink drive arrangement, be provided with screen printing plate 13 between two positioners 34, as shown in fig. 2 and 4, the scraper includes scrapes the crossbeam 35, the doctor 36, a pressure adjustment mechanism for driving the doctor 36 to go up and down in the doctor process and an angle adjustment mechanism for driving the doctor 36 to rotate in the doctor process, scrape the crossbeam 35 and slide between two positioners 34 in the front-back slidable mounting, it connects to scrape the crossbeam 35 in the middle part slidable mounting, the pressure adjustment mechanism includes pressure drive assembly and lift slider 84, lift 84 slidable mounting in the crossbeam 35 in the lift 84 in the lift mechanism, pressure drive assembly is connected with lift mechanism in the angle adjustment mechanism is provided with the lift slider 36 in the angle adjustment mechanism;
specifically, the angle adjustment mechanism includes an angle drive assembly and a doctor mounting bracket rotatably mounted to the lift carriage 84, the angle drive assembly drivingly coupled to the doctor mounting bracket, and the doctor 36 fixedly mounted to the doctor mounting bracket.
The track type screen printer is provided with a light scraping state, a heavy scraping state and a return state, and the scraping driving device drives the scraping device to move from the rear side of the screen plate 13 to the front side of the screen plate 13, and a return gap is provided between the scraping blade 36 and the screen plate 13, specifically, the return gap is 0.1-10 cm. After each wiping operation, the wiping device switches to the return state, thereby resetting the doctor blade 36 for the next wiping operation.
As shown in fig. 5, the pressure adjustment mechanism in the light scraping state has the second drive stroke B, and the doctor blade 36 in the light scraping state has the first pressure F1 to the screen plate 13. The doctor blade 36 abuts against the screen plate 13 at the first pressure F1, and a slight scraping angle is formed between the doctor blade 36 and the screen plate 13, specifically, the slight scraping angle is 45 to 90 °, and the doctor driving device drives the doctor device to move from the front side of the screen plate 13 to the rear side of the screen plate 13.
As shown in fig. 6, the pressure adjustment mechanism in the heavy scraping state has a third driving stroke C, and the doctor blade 36 in the heavy scraping state has a second pressure F2 to the screen plate 13; the doctor blade 36 abuts against the screen plate 13 at the second pressure F2, and a heavy scraping angle is formed between the doctor blade 36 and the screen plate 13, specifically, the heavy scraping angle is 10 to 45 °, and the doctor driving device drives the doctor device to move from the front side of the screen plate 13 to the rear side of the screen plate 13.
The second driving stroke B is smaller than the third driving stroke C, and the second pressure F2 is larger than the first pressure F1.
The ink scraping driving device drives the ink scraping beam 35 to slide forwards and backwards, so that the ink scraping blade 36 moves on the screen printing plate 13 to scrape ink, the pressure driving assembly drives the lifting sliding seat 84 to lift, so that the ink scraping pressure of the ink scraping blade 36 is changed, the printing effect is improved, and in the printing process, the ink scraping device is switched among a light scraping state, a heavy scraping state and a return state in the same printing area, so that the ink scraping pressure of the ink scraping blade 36 is changed, and the printing effect is improved; the angle of the doctor blade 36 is automatically adjusted in the light scraping state and the heavy scraping state, the adjustable parameters are increased, the requirements of different printing processes are met, and the printable range is enlarged; the inclination angle and the ink scraping pressure of the ink scraping knife 36 are automatically adjusted, manual adjustment is not needed, the adjustment precision is higher, and the operation is more convenient.
Specifically, the doctor mounting bracket includes rotary rod 95, connecting plate 96 and two doctor connection pieces 97, and the upper portion fixed mounting of two doctor connection pieces 97 is in the left and right sides both ends of rotary rod 95, and doctor 36 fixed mounting is in the lower part of two doctor connection pieces 97, and rotary rod 95 swivelling mounting and lift slide 84, the first end fixed mounting of connecting plate 96 in the middle part of rotary rod 95, the second end and the angle drive subassembly transmission of connecting plate 96 are connected. Specifically, the angle drive assembly includes angle drive motor 91, angle drive lead screw 92, angle drive nut 93 and angle driving piece 94, angle drive motor 91 fixed mounting is in lift slide 84, angle drive lead screw 92 fixed mounting is in angle drive motor 91's output shaft, angle driving piece 94 swivelling mounting is in the second end of connecting plate 96, angle driving piece 94 has seted up the mounting hole 941 that runs through angle driving piece 94 from top to bottom, angle drive nut 93 inlays locates mounting hole 941, angle drive lead screw 92 and angle drive nut 93 threaded connection, angle driving piece 94's rotation axis is parallel with rotary rod 95. When the inclination angle of the doctor blade 36 is adjusted, the angle driving motor 91 drives the angle driving screw 92 to rotate, the angle driving screw 92 drives the angle driving piece 94 to lift through the angle driving nut 93, and the angle driving piece 94 drives the connecting plate 96 to rotate in the lifting process, so that the doctor blade 36 rotates; the smaller the angle between the doctor blade 36 and the screen plate 13 when the angle transmission member 94 moves upward; the greater the angle between doctor blade 36 and screen plate 13 as angle drive 94 moves downward.
Specifically, the pressure driving assembly comprises a pressure driving motor 81, a pressure driving screw rod 82 and a pressure driving nut 83, wherein the pressure driving motor 81 is fixedly arranged on the ink scraping beam 35, the pressure driving screw rod 82 is fixedly arranged on an output shaft of the pressure driving motor 81, the pressure driving nut 83 is fixedly arranged on a lifting sliding seat 84, and the pressure driving screw rod 82 is in threaded connection with the pressure driving nut 83; the left and right sides of the upper portion of the lifting slide 84 are respectively fixedly provided with a pressure lifting guide pillar 85, the positions of the ink scraping beam 35 corresponding to the two pressure lifting guide pillars 85 are respectively provided with a pressure linear bearing 86, and the two pressure linear bearings 86 are respectively in sliding fit with the two pressure lifting guide pillars 85. The second driving stroke B and the third driving stroke C are the number of turns of the pressure driving screw 82 driven by the pressure driving motor 81.
In the light scraping state, the control circuit sends a light scraping control signal to the pressure driving motor 81, and the light scraping control signal is used for driving the pressure driving screw 82 to rotate forward for a second driving stroke B, so that the driving doctor blade 36 moves downwards from the initial position until the doctor blade 36 abuts against the silk screen printing plate 13 at the first pressure F1;
in the reprofile state, the control circuit sends a reprofile control signal to the pressure drive motor 81 for driving the pressure drive screw 82 to rotate forward a third drive stroke C, causing the driven doctor blade 36 to move downwardly from the initial position until the doctor blade 36 abuts against the screen plate 13 at the second pressure F2.
When in printing, the track type screen printer firstly enters a light scraping state or a heavy scraping state,
when the track type screen printer is converted into a return state after the light scraping state is finished, the control circuit sends a return control signal to the pressure driving motor 81, and the return control signal is used for driving the pressure driving screw 82 to reversely rotate by a second driving stroke B, so that the driving doctor blade 36 moves upwards and returns to the initial position, and a return gap is formed between the doctor blade 36 and the screen printing plate 13;
when the track type screen printer is converted into a return state after the re-scraping state is completed, the control circuit sends a return control signal to the pressure driving motor 81, and the return control signal is used for driving the pressure driving screw 82 to reversely rotate by a third driving stroke C, so that the driving doctor blade 36 moves upwards and returns to the initial position, and a return gap is formed between the doctor blade 36 and the screen printing plate 13.
When the ink scraping device is switched from the light scraping state to the heavy scraping state, the ink scraping device is firstly switched to a return state, the pressure driving motor 81 drives the pressure driving screw rod 82 to reversely rotate, the pressure driving screw rod 82 enables the lifting sliding seat 84 to ascend through the pressure driving nut 83 until the ink scraping knife 36 is far away from the screen printing plate 13, and the return clearance is larger than 0; then the pressure driving motor 81 drives the pressure driving screw rod 82 to rotate forwards, the pressure driving screw rod 82 enables the lifting slide seat 84 to descend through the pressure driving nut 83 until the doctor blade 36 abuts against the silk screen printing plate 13 at the second pressure F2; similarly, when the doctor blade device is switched from the heavy doctor state to the light doctor state, the doctor blade device is first switched to the return state, then the pressure driving motor 81 drives the pressure driving screw 82 to rotate forward, the pressure driving screw 82 drives the lifting slide seat 84 to descend through the pressure driving nut 83 until the doctor blade 36 abuts against the screen plate 13 at the first pressure F1, and the pressure of the doctor blade 36 against the screen plate 13 is reduced. When carrying out the secondary in same printing region and scraping ink printing, through different ink scraping dynamics, satisfy different printing technology requirements, improve the printing effect, under the drive of pressure driving motor 81, accomplish pressure regulation automatically, need not artifical manual regulation, pressure driving motor 81 adopts step motor, and the regulation precision is higher, and it is more convenient to use.
Specifically, the left and right sides of the lower portion of the lifting slide 84 are respectively provided with a connection blocking lug 841, the middle parts of the two connection blocking lugs 841 are provided with a rotation hole 842 transversely penetrating through the connection blocking lugs 841, the left and right ends of the rotation rod 95 are respectively rotatably mounted in the rotation hole 842, the lifting slide 84 is also provided with a motor mounting seat 843, a first end of the motor mounting seat 843 is fixedly mounted on the lifting slide 84, a second end of the motor mounting seat 843 protrudes above the lifting slide 84 and extends to the upper side of the angle driving nut 93, and the angle driving motor 91 is fixedly mounted on the motor mounting seat 843. The angle driving motor 91 is mounted on the lifting slide 84 through the motor mounting seat 843, so that the angle driving motor 91 extends out of the lifting slide 84 and is positioned above the angle driving nut 93, the distance between the angle driving screw 92 and the angle driving piece 94 is reduced, the rotation angle range of the doctor blade 36 is enlarged, the adjustable parameter range is improved, and the machinable range is enlarged.
Specifically, angle adjustment mechanism still is provided with automatic shutdown subassembly, automatic shutdown subassembly includes angle limit sensor 98, trigger plate 99 and mounting panel 844, the first end fixed mounting of mounting panel 844 is in lift slide 84, angle limit sensor 98 sets up in the second end of mounting panel 844, trigger plate 99 installs in the one side that connecting plate 96 is close to angle limit sensor 98, trigger plate 99 is located angle limit sensor 98's below, angle limit sensor 98 triggers the cooperation with trigger plate 99, angle limit sensor 98 and angle driving motor 91 electric connection. The angle limit sensor 98 senses the distance between the angle limit sensor 98 and the trigger plate 99, and when the angle between the doctor blade 36 and the screen plate 13 reaches the minimum value, the angle limit sensor 98 sends a stop signal to the angle drive motor 91 to stop the angle drive motor 91 and prevent transitional rotation; preferably, the angle limiting sensor 98 is a distance sensor, and the distance between the angle limiting sensor 98 and the trigger plate 99 is monitored in real time, so that the rotation angle of the doctor blade 36 is accurately controlled, and the parameter adjustment precision is improved.
Specifically, as shown in fig. 2 and 3, the screen printer is further provided with an ink return device, the ink return device is arranged at the front side of the ink scraping device, the ink return device comprises an ink return lifting frame, an ink return driving motor 23, an ink return driving screw 24, an ink return driving nut 25 and an ink return knife 26, the ink return lifting frame is vertically and slidably arranged on the ink scraping beam 35, the ink return driving nut 25 is fixedly arranged on the upper part of the ink return lifting frame, the ink return knife 26 is fixedly arranged on the lower part of the ink return lifting frame, the ink return driving motor 23 is fixedly arranged on the ink scraping beam 35, the ink return driving screw 24 is fixedly arranged on an output shaft of the ink return driving motor 23, and the ink return driving screw 24 is in threaded connection with the ink return driving nut 25. In the return state, the ink return driving motor 23 drives the ink return driving screw 24 to rotate, and the ink return driving screw 24 enables the ink return lifting frame to descend through the ink return driving nut 25 until the ink return knife 26 abuts against the top screen printing plate 13, so that the ink is scraped back to the initial position.
Specifically, the ink return lifting frame comprises an ink return cross rod 21 and two ink return guide posts 22, the two ink return guide posts 22 are respectively and fixedly arranged at the left end and the right end of the ink return cross rod 21, the two ink return guide posts 22 are vertically and slidably arranged on the ink scraping cross rod 35, the ink return knife 26 is fixedly arranged at the lower ends of the two ink return guide posts 22, the ink return lifting frame is also slidably arranged with an ink return transmission plate 28, the left end and the right end of the ink return transmission plate 28 are respectively and slidably arranged on the two ink return guide posts 22, the ink return transmission plate 28 is positioned above the ink scraping cross rod 35, the ink return driving nut 25 is fixedly arranged on the ink return transmission plate 28, and a buffer elastic piece 27 is arranged between the ink return transmission plate 28 and the ink return cross rod 21. When the ink return knife 26 abuts against the top screen printing plate 13, due to different ink viscosity, when the ink viscosity is higher, the ink return knife 26 has larger resistance when scraping ink, the screen printing plate 13 is easy to damage, the printing effect is affected, the ink return knife 26 is elastically abutted against the top screen printing plate 13 through the buffer elastic piece 27, and in the return state, the ink return knife 26 has elastic potential energy relative to the screen printing plate 13, so that the risk of damaging the screen printing plate 13 is reduced, and the stability and the reliability are improved.
The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.
Claims (10)
1. The utility model provides an automatically regulated scrapes rail mounted screen printer of black pressure, including printing table, track and printing machine body (3), track fixed mounting is in the printing table, printing machine body (3) slip walking in the track, the front side and the rear side of printing machine body (3) are provided with positioner (34) respectively, the mid-section slidable mounting of printing machine body (3) has the scraping ink device, the inside of printing machine body (3) is provided with scrapes ink drive arrangement, scrape ink drive arrangement transmission and connect and scrape ink device, be provided with screen printing plate (13) between two positioner (34), its characterized in that:
the ink scraping device comprises an ink scraping beam (35), an ink scraping knife (36), a pressure adjusting mechanism for driving the ink scraping knife (36) to lift in the ink scraping process and an angle adjusting mechanism for driving the ink scraping knife (36) to rotate in the ink scraping process, wherein the ink scraping beam (35) is arranged between two positioning devices (34) in a front-back sliding way, the ink scraping driving device is in transmission connection with the ink scraping beam (35),
the pressure adjusting mechanism comprises a pressure driving component and a lifting slide seat (84), the lifting slide seat (84) is arranged on the ink scraping beam (35) in a vertical sliding manner, the pressure driving component is in transmission connection with the lifting slide seat (84), the angle adjusting mechanism is arranged on the lifting slide seat (84), and the ink scraping knife (36) is arranged on the angle adjusting mechanism;
the track type screen printer is provided with a light scraping state, a heavy scraping state and a return state,
the pressure adjusting mechanism in the light scraping state has a second driving stroke B, the doctor blade (36) in the light scraping state has a first pressure F1 to the screen plate (13),
the pressure adjusting mechanism in the heavy scraping state has a third driving stroke C, the scraping knife (36) in the heavy scraping state has a second pressure F2 to the screen printing plate (13),
the second driving stroke B is smaller than the third driving stroke C, and the second pressure F2 is larger than the first pressure F1.
2. A self-regulating doctor blade pressure orbital screen printer as defined in claim 1 wherein: the angle adjusting mechanism comprises an angle driving assembly and a scraper mounting frame, the scraper mounting frame is rotatably mounted on the lifting sliding seat (84), the angle driving assembly is in transmission connection with the scraper mounting frame, and the scraper (36) is fixedly mounted on the scraper mounting frame;
in the light scraping state, a light scraping included angle is formed between the scraping knife (36) and the screen printing plate (13), the scraping driving device drives the scraping device to move from the front side of the screen printing plate (13) to the rear side of the screen printing plate (13),
in the heavy scraping state, a heavy scraping included angle is formed between the scraping knife (36) and the screen printing plate (13), the scraping driving device drives the scraping device to move from the front side of the screen printing plate (13) to the rear side of the screen printing plate (13),
in the return state, the ink scraping driving device drives the ink scraping device to move from the rear side of the screen printing plate (13) to the front side of the screen printing plate (13), a return clearance is arranged between the ink scraping knife (36) and the screen printing plate (13),
in the light scraping state, the doctor blade (36) is pressed against the silk screen printing plate (13) with the first pressure F1,
in the heavy scraping state, the doctor blade (36) presses against the screen printing plate (13) with the second pressure F2.
3. A self-regulating doctor blade pressure orbital screen printer as defined in claim 2 wherein: the scraper mounting frame comprises a rotating rod (95), a connecting plate (96) and two scraper connecting pieces (97), wherein the upper parts of the two scraper connecting pieces (97) are fixedly arranged at the left end and the right end of the rotating rod (95), the scraper knife (36) is fixedly arranged at the lower parts of the two scraper connecting pieces (97), the rotating rod (95) is rotatably arranged with the lifting sliding seat (84), the first end of the connecting plate (96) is fixedly arranged at the middle part of the rotating rod (95), and the second end of the connecting plate (96) is in transmission connection with the angle driving assembly.
4. A self-regulating doctor blade pressure orbital screen printer as defined in claim 3 wherein: the angle drive assembly comprises an angle drive motor (91), an angle drive screw rod (92), an angle drive nut (93) and an angle transmission member (94), wherein the angle drive motor (91) is fixedly installed on the lifting sliding seat (84), the angle drive screw rod (92) is fixedly installed on an output shaft of the angle drive motor (91), the angle transmission member (94) is rotatably installed at the second end of the connecting plate (96), the angle transmission member (94) is provided with an installation hole (941) penetrating through the angle transmission member (94) up and down, the angle drive nut (93) is embedded in the installation hole (941), the angle drive screw rod (92) is in threaded connection with the angle drive nut (93), and a rotating shaft of the angle transmission member (94) is parallel to the rotating rod (95).
5. The self-regulating doctor blade pressure orbital screen printer of claim 4, wherein: the pressure driving assembly comprises a pressure driving motor (81), a pressure driving screw rod (82) and a pressure driving nut (83), wherein the pressure driving motor (81) is fixedly arranged on the ink scraping beam (35), the pressure driving screw rod (82) is fixedly arranged on an output shaft of the pressure driving motor (81), the pressure driving nut (83) is fixedly arranged on the lifting sliding seat (84), and the pressure driving screw rod (82) is in threaded connection with the pressure driving nut (83);
the left side and the right side of the upper part of the lifting sliding seat (84) are respectively and fixedly provided with a pressure lifting guide pillar (85), the positions of the ink scraping beam (35) corresponding to the two pressure lifting guide pillars (85) are respectively provided with a pressure linear bearing (86), and the two pressure linear bearings (86) are respectively in sliding fit with the two pressure lifting guide pillars (85).
6. The self-regulating doctor blade pressure orbital screen printer of claim 4, wherein: the left and right sides of the lower part of the lifting sliding seat (84) are respectively provided with a connecting retaining lug (841), the middle parts of the two connecting retaining lugs (841) are provided with rotating holes (842) which transversely penetrate through the connecting retaining lugs (841), the left and right ends of the rotating rod (95) are respectively rotatably arranged in the rotating holes (842),
the lifting slide seat (84) is further provided with a motor mounting seat (843), a first end of the motor mounting seat (843) is fixedly mounted on the lifting slide seat (84), a second end of the motor mounting seat (843) protrudes above the lifting slide seat (84) and extends to the angle driving nut (93), and the angle driving motor (91) is fixedly mounted on the motor mounting seat (843).
7. The self-regulating doctor blade pressure orbital screen printer of claim 4, wherein: the angle adjusting mechanism is further provided with an automatic stop assembly, the automatic stop assembly comprises an angle limit sensor (98), a trigger plate (99) and a mounting plate (844), the first end of the mounting plate (844) is fixedly mounted on the lifting sliding seat (84), the angle limit sensor (98) is arranged at the second end of the mounting plate (844), the trigger plate (99) is mounted on one side, close to the angle limit sensor (98), of the connecting plate (96), the trigger plate (99) is located below the angle limit sensor (98), the angle limit sensor (98) is in trigger fit with the trigger plate (99), and the angle limit sensor (98) is electrically connected with the angle driving motor (91).
8. The self-regulating doctor blade pressure orbital screen printer of claim 4, wherein: the screen printing machine is further provided with an ink returning device, the ink returning device is arranged on the front side of the ink scraping device, the ink returning device comprises an ink returning lifting frame, an ink returning driving motor (23), an ink returning driving screw rod (24), an ink returning driving nut (25) and an ink returning knife (26), the ink returning lifting frame is arranged on the ink scraping beam (35) in a sliding mode up and down, the ink returning driving nut (25) is fixedly arranged on the upper portion of the ink returning lifting frame, the ink returning knife (26) is fixedly arranged on the lower portion of the ink returning lifting frame, the ink returning driving motor (23) is fixedly arranged on the ink scraping beam (35), the ink returning driving screw rod (24) is fixedly arranged on an output shaft of the ink returning driving motor (23), and the ink returning driving screw rod (24) is in threaded connection with the ink returning driving nut (25);
in the return state, an ink return knife (26) is in abutting fit with the screen plate (13).
9. The self-regulating doctor blade pressure orbital screen printer of claim 8, wherein: the ink return lifting frame comprises an ink return cross rod (21) and two ink return guide posts (22), the two ink return guide posts (22) are respectively and fixedly arranged at the left end and the right end of the ink return cross rod (21), the two ink return guide posts (22) are vertically and slidably arranged on the ink scraping cross beam (35), the ink return knife (26) is fixedly arranged at the lower end parts of the two ink return guide posts (22),
the ink return lifting frame is further provided with an ink return transmission plate (28) in a sliding mode, the left end and the right end of the ink return transmission plate (28) are respectively and slidably arranged on the two ink return guide posts (22), the ink return transmission plate (28) is located above the ink scraping cross beam (35), the ink return driving nut (25) is fixedly arranged on the ink return transmission plate (28), and a buffer elastic piece (27) is arranged between the ink return transmission plate (28) and the ink return cross beam (21).
10. A rail type screen printing machine for automatically adjusting a wiping pressure according to any one of claims 2 to 9, wherein: the return clearance is 0.1-50 cm, the included angle of the light scraping is 45-90 degrees, and the included angle of the heavy scraping is 10-45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223289633.8U CN219214408U (en) | 2022-12-08 | 2022-12-08 | Rail-mounted screen printer capable of automatically adjusting ink scraping pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223289633.8U CN219214408U (en) | 2022-12-08 | 2022-12-08 | Rail-mounted screen printer capable of automatically adjusting ink scraping pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219214408U true CN219214408U (en) | 2023-06-20 |
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ID=86756973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223289633.8U Active CN219214408U (en) | 2022-12-08 | 2022-12-08 | Rail-mounted screen printer capable of automatically adjusting ink scraping pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219214408U (en) |
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2022
- 2022-12-08 CN CN202223289633.8U patent/CN219214408U/en active Active
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