CN219214424U - Scraper device and printing machine - Google Patents
Scraper device and printing machine Download PDFInfo
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- CN219214424U CN219214424U CN202320238281.9U CN202320238281U CN219214424U CN 219214424 U CN219214424 U CN 219214424U CN 202320238281 U CN202320238281 U CN 202320238281U CN 219214424 U CN219214424 U CN 219214424U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to the technical field of screen printing, in particular to a scraper device and a printer, and aims to solve the technical problem that printing efficiency is low due to ink return action in the conventional screen printing. The scraper device comprises a scraper assembly and an ink knife assembly; the scraper assembly comprises a scraper and a first linear driving assembly, and the first linear driving assembly is in transmission connection with the scraper and is configured to drive the scraper to move along the direction perpendicular to a printing stock under a printing working condition; the ink knife assembly comprises ink knives and a second linear driving component, the ink knives and the scrapers are distributed at intervals along the printing direction of the scrapers, and the second linear driving component is in transmission connection with the ink knives and is configured to drive the ink knives to move along the direction perpendicular to a printing stock under the printing working condition. The printer includes a doctor blade device. By adopting the scraper device, when the scraper is used for printing, the ink knife is simultaneously used for returning the sizing agent, and the ink returning time is not needed, so that the printing beat can be improved, and the printing efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of screen printing, in particular to a scraper device and a printer.
Background
In the process of solar cell, the conductive paste is printed onto the silicon wafer by screen printing. When in printing, the paste is added on the screen plate, the scraper applies certain pressure to the screen plate, and simultaneously moves towards the other end of the screen plate, the paste is extruded from the mesh to the printing stock in the moving process, and the paste is fixed in a certain range due to the viscosity effect. The scraper is lifted after scraping the whole layout, the screen plate is lifted at the same time, and the slurry is gently scraped back to the initial position by the ink knife, so that a printing stroke is completed.
It can be seen that after the doctor finishes printing, the ink knife is required to carry out return stroke to spread the slurry, and when the ink returning time is less than the turntable time after the speed is increased, the ink returning action is a bottleneck affecting the beat, so that the printing efficiency is affected.
Disclosure of Invention
The utility model aims to provide a scraper device and a printer, which are used for solving the technical problem of low printing efficiency caused by ink return action in the conventional screen printing.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
in a first aspect, the present utility model provides a doctor apparatus comprising: a doctor assembly and an ink blade assembly;
the scraper assembly comprises a scraper and a first linear driving assembly, and the first linear driving assembly is in transmission connection with the scraper and is configured to drive the scraper to move along the direction perpendicular to a printing object under a printing working condition;
the ink knife assembly comprises an ink knife and a second linear driving assembly, the ink knife and the scraper are distributed at intervals along the printing direction of the scraper, and the second linear driving assembly is in transmission connection with the ink knife and is configured to drive the ink knife to move along the direction perpendicular to a printing object under the printing working condition.
Further, the scraper device further comprises a fixed table;
the first linear driving assembly comprises a first driving piece, and the first driving piece is arranged on the fixed table and used for driving the scraper to move towards or away from a printing stock.
Further, the first driving piece comprises a linear driver, and the driving end of the linear driver is in transmission connection with the scraper.
Further, the second linear drive assembly includes a second drive member;
the second driving piece is arranged on the fixed table and used for driving the ink knife to move towards or away from the printing stock.
Further, the second drive member includes a rotary drive;
the second linear driving assembly further comprises a linear transmission piece, the output end of the rotary driver is connected with the linear transmission piece, and the output end of the linear transmission piece is connected with the ink knife.
Further, the linear transmission member comprises a sliding block;
the sliding block is in threaded fit with the output end of the rotary driver and is in sliding connection with the fixed table.
Further, the scraper device further comprises a spring reset assembly;
the spring reset assembly is arranged on the fixed table and connected with the scraper, and the spring reset assembly is configured to enable the scraper to have a trend of moving away from a printing object under a printing working condition.
Further, the spring return assembly comprises a fixing frame and an elastic piece;
the fixing frame is fixedly connected with the fixing table, and the elastic piece is connected between the fixing frame and the scraper.
Further, the scraper assemblies and the ink knife assemblies are respectively provided with two groups, the two groups are distributed in sequence along the printing direction, and the two groups of scraper assemblies are positioned between the two groups of ink knife assemblies.
In a second aspect, the present utility model provides a printing press comprising the doctor apparatus.
In summary, the technical effects that the scraper device provided by the utility model can realize are as follows:
in the present utility model, the doctor apparatus includes a doctor assembly and an ink blade assembly; the scraper assembly comprises a scraper and a first linear driving assembly, and the first linear driving assembly is in transmission connection with the scraper and is configured to drive the scraper to move along the direction perpendicular to a printing stock under a printing working condition; the ink knife assembly comprises ink knives and a second linear driving component, the ink knives and the scrapers are distributed at intervals along the printing direction of the scrapers, and the second linear driving component is in transmission connection with the ink knives and is configured to drive the ink knives to move along the direction perpendicular to a printing stock under the printing working condition.
When printing, the first linear driving assembly drives the scraper to move along the direction perpendicular to the printing stock, so that the scraper applies certain pressure to the screen printing plate, and meanwhile, the second linear driving assembly drives the ink knife to move along the direction perpendicular to the printing stock, so that the ink knife contacts the screen printing plate simultaneously, so that the whole scraper device can realize printing from one end of the screen printing plate towards the other end in the process of translation, the ink knife scrapes slurry into a spacing space formed by the scraper, ink return is completed, and printing of the scraper is not influenced.
Compared with the prior art, the scraper device is adopted, and when the scraper is used for printing, the ink knife is simultaneously used for returning the paste, so that the ink returning time is not needed, the printing beat can be improved, and the printing efficiency is improved.
The printing machine provided by the utility model has the beneficial effects that:
the printing machine provided by the utility model comprises the scraper device, so that the technical advantages and effects achieved by the printing machine comprise the technical advantages and effects achieved by the scraper device, and are not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an assembled schematic view of a doctor apparatus according to an embodiment of the present utility model;
FIG. 2 is a side view of a doctor apparatus provided in an embodiment of the utility model;
fig. 3 is a schematic diagram of an application of the doctor apparatus according to the embodiment of the present utility model in a left translation;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a schematic diagram of an application of the doctor apparatus according to the embodiment of the present utility model in right translation;
fig. 6 is a top view of fig. 5.
Icon: 100-scraper; 200-a first linear drive assembly; 300-ink knife; 400-a second linear drive assembly; 500-fixing the table; 600-spring return assembly.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
In the screen printing process, slurry is added on the screen plate, a scraper applies certain pressure to the screen plate, and simultaneously moves towards the other end of the screen plate, the slurry is extruded from a mesh to a printing object in the moving process, and the slurry is fixed in a certain range due to the viscosity effect. The scraper is lifted after scraping the whole layout, the screen plate is lifted at the same time, and the slurry is gently scraped back to the initial position by the ink knife, so that a printing stroke is completed. It can be seen that after the doctor finishes printing, the ink knife is required to carry out return stroke to spread the slurry, and when the ink returning time is less than the turntable time after the speed is increased, the ink returning action is a bottleneck affecting the beat, so that the printing efficiency is affected.
In view of this, the present utility model provides a doctor apparatus, referring to fig. 1 and 2, comprising a doctor assembly and an ink blade assembly; the scraper assembly comprises a scraper 100 and a first linear driving assembly 200, wherein the first linear driving assembly 200 is in transmission connection with the scraper 100 and is configured to drive the scraper 100 to move along a direction perpendicular to a printing stock under a printing working condition; the ink knife assembly comprises an ink knife 300 and a second linear driving component 400, the ink knife 300 and the scraper 100 are distributed at intervals along the printing direction of the scraper 100, and the second linear driving component 400 is in transmission connection with the ink knife 300 and is configured to drive the ink knife 300 to move along the direction perpendicular to a printing stock under the printing working condition.
Referring to fig. 1 to 6, during printing, the first linear driving assembly 200 drives the doctor blade 100 to move downwards along the direction perpendicular to the printing stock, so that the doctor blade 100 applies a certain pressure to the screen, and the second linear driving assembly 400 also drives the ink blade 300 to move downwards along the direction perpendicular to the printing stock, so that the ink blade 300 contacts the screen, and thus the whole doctor device can realize printing by the doctor blade 100 in the process of translating from one end of the screen to the other end, the ink blade 300 scrapes the slurry into a space formed by the doctor blade 100, ink return is completed, and printing of the doctor blade 100 is not affected.
It can be seen that, compared with the prior art, when the doctor blade device is used for printing, the ink knife 300 is simultaneously used for returning the paste, and the ink returning time is not needed, so that the printing beat can be improved, and the printing efficiency is improved.
The structure and shape of the doctor apparatus according to the present embodiment are described in detail below with reference to fig. 1 to 6:
further, referring to fig. 1 and 2, the doctor apparatus further includes a fixing stage 500; the first linear driving assembly 200 includes a first driving member disposed on the fixing table 500 for driving the doctor blade 100 to move toward or away from the printing material.
With continued reference to fig. 1 and 2, the first drive member comprises a linear drive, which may be a linear motor, the drive end of which is in driving connection with the scraper 100. When the linear motor is started, the scraper 100 can be driven to lift so as to realize printing; furthermore, the linear motor increases the pressure of the scraper 100, thereby alleviating the phenomenon of bouncing.
Further, the second linear drive assembly 400 includes a second drive member; the second driving member is disposed on the fixing table 500, and is used for driving the ink knife 300 to move towards or away from the printing object.
Referring to fig. 1 and 2, the second driving member includes a rotary driver, which may employ a stepping motor; the second linear driving assembly 400 further comprises a linear transmission member, wherein the linear transmission member adopts a sliding block, and the sliding block is in threaded fit with an output shaft of the rotary driver and is in sliding connection with the fixed table 500; the ink blade 300 is connected to a slider. Taking fig. 1 as an example, when the rotary driver is started, the sliding block moves up and down under the combined action of the output shaft and the fixed table 500, so as to drive the ink knife 300 to lift.
Further, with continued reference to fig. 1 and 2, both the doctor assembly and the ink blade assembly are provided with two sets and are distributed sequentially along the printing direction. Wherein, two sets of scraper assemblies are located between two sets of ink knife assemblies.
Referring to fig. 3 and 4, when the doctor device moves horizontally to the left, the doctor 100 on the left is lowered under the driving of the first linear driving assembly 200, the doctor 100 on the right is at the initial position, the doctor 300 on the right is lowered under the driving of the second linear driving assembly 400, the doctor 300 on the left is at the initial position, and printing and ink returning are completed simultaneously after the doctor device moves to the left; referring to fig. 5 and 6, when the doctor device moves horizontally rightward after one printing is completed, the doctor 100 on the right side is lowered by the first linear driving assembly 200, the doctor 100 on the left side is at the initial position, the ink knife 300 on the left side is lowered by the second linear driving assembly 400, the ink knife 300 on the right side is at the initial position, and printing and ink returning are completed simultaneously after the doctor device moves right.
By adopting the design of the double-scraper 100 and the double-ink-knife 300, when the scraper 100 prints, the ink-knife 300 is simultaneously in paste returning, so that the ink returning time is not needed, and the printing beat can be improved. Compared with the prior art that one printing stroke is used for completing one printing, the design can be completed twice, and the printing efficiency is greatly improved.
Further, referring to fig. 1, the doctor apparatus further includes a spring return assembly 600, the spring return assembly 600 being disposed on the stationary platen 500 and coupled to the doctor blade 100, the spring return assembly 600 being configured to cause the doctor blade 100 to have a tendency to move away from the substrate during a printing operation.
In particular, referring to fig. 1 and 2, the spring return assembly 600 includes a mount and an elastic member; the fixed frame is fixedly connected with the fixed table, the elastic piece can adopt an extension spring, the upper end of the extension spring is connected with the fixed frame, and the lower end of the extension spring is connected with a transmission plate which directly drives the scraper 100 to lift. When the linear motor drives the transmission plate to descend, the scraper 100 descends synchronously, and the tension spring is stressed to stretch at the moment; when the printing completion linear motor drives the transmission plate to ascend, the scraper 100 ascends synchronously, and the tension spring at the moment gradually returns to the initial state. When the linear motor fails, the extension spring applies upward tension to the scraper 100, so that the scraper 100 can be prevented from falling down, and the purpose of preventing falling during power failure is achieved.
The present embodiment also provides a printing machine including the doctor device, so that technical advantages and effects achieved by the printing machine include technical advantages and effects achieved by the doctor device, which are not described herein again.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. A doctor apparatus, comprising: a doctor assembly and an ink blade assembly;
the scraper assembly comprises a scraper and a first linear driving assembly, and the first linear driving assembly is in transmission connection with the scraper and is configured to drive the scraper to move along the direction perpendicular to a printing object under a printing working condition;
the ink knife assembly comprises an ink knife and a second linear driving assembly, the ink knife and the scraper are distributed at intervals along the printing direction of the scraper, and the second linear driving assembly is in transmission connection with the ink knife and is configured to drive the ink knife to move along the direction perpendicular to a printing object under the printing working condition.
2. The doctor apparatus according to claim 1, further comprising a stationary table;
the first linear driving assembly comprises a first driving piece, and the first driving piece is arranged on the fixed table and used for driving the scraper to move towards or away from a printing stock.
3. The doctor apparatus as claimed in claim 2, wherein the first drive member includes a linear drive, the drive end of which is drivingly connected to the doctor blade.
4. The doctor apparatus according to claim 2 wherein the second linear drive assembly includes a second drive member;
the second driving piece is arranged on the fixed table and used for driving the ink knife to move towards or away from the printing stock.
5. The doctor apparatus as claimed in claim 4, wherein the second drive member includes a rotary drive;
the second linear driving assembly further comprises a linear transmission piece, the output end of the rotary driver is connected with the linear transmission piece, and the output end of the linear transmission piece is connected with the ink knife.
6. The doctor apparatus as claimed in claim 5, wherein the linear transmission member includes a slider;
the sliding block is in threaded fit with the output end of the rotary driver and is in sliding connection with the fixed table.
7. The doctor apparatus as claimed in claim 2, further comprising a spring return assembly;
the spring reset assembly is arranged on the fixed table and connected with the scraper, and the spring reset assembly is configured to enable the scraper to have a trend of moving away from a printing object under a printing working condition.
8. The doctor apparatus as claimed in claim 7, wherein the spring return assembly includes a mount and a resilient member;
the fixing frame is fixedly connected with the fixing table, and the elastic piece is connected between the fixing frame and the scraper.
9. Doctor apparatus according to any of claims 1 to 8, wherein the doctor assemblies and the ink blade assemblies are each provided in two groups and are distributed in sequence in the printing direction, with the two groups of doctor assemblies being located between the two groups of ink blade assemblies.
10. A printing press comprising a doctor apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320238281.9U CN219214424U (en) | 2023-02-17 | 2023-02-17 | Scraper device and printing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320238281.9U CN219214424U (en) | 2023-02-17 | 2023-02-17 | Scraper device and printing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219214424U true CN219214424U (en) | 2023-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320238281.9U Active CN219214424U (en) | 2023-02-17 | 2023-02-17 | Scraper device and printing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219214424U (en) |
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2023
- 2023-02-17 CN CN202320238281.9U patent/CN219214424U/en active Active
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