Cover plate screen printing device capable of automatically preparing ink

Abstract

The utility model discloses a cover plate screen printing device capable of automatically distributing ink, which comprises a conveying mechanism, an ink supply mechanism, a screen printing plate mechanism, a scraper mechanism and a PLC (programmable logic controller), and the ink supply mechanism, the screen printing plate mechanism and the scraper mechanism are positioned above the conveying mechanism and are sequentially arranged along the conveying direction of the conveying mechanism. The PLC is connected with and controls the conveying mechanism, the ink supply mechanism, the screen printing plate mechanism and the scraper mechanism; the ink supply mechanism comprises a plurality of ink boxes, a plurality of ink outlet electronic valves, a plurality of ink outlet nozzles, an automatic stirrer and an ink supply channel, the ink boxes, the ink outlet electronic valves and the ink outlet nozzles are in one-to-one correspondence, each ink outlet nozzle is communicated to the corresponding ink box through the corresponding ink outlet electronic valve, and all the ink outlet nozzles face the automatic stirrer; one end of the ink supply channel is communicated to the automatic stirrer, and the other end of the ink supply channel extends into the screen printing plate mechanism. The cover plate silk-screen printing device can improve the production efficiency and quality control of cover plate silk-screen printing.

Description

Technical Field

[0001] The utility model relates to a cover plate screen printing technology, in particular to a cover plate screen printing device with automatic ink distribution. Background Art

[0002] Screen printing is a common and critical process in the modern cover manufacturing industry, especially in the production of glass cover panels for electronic products. The traditional screen printing process mainly relies on manual operations, including the identification of the glass cover panel, the preparation of the ink, and the actual printing work. This method is not only inefficient, but also prone to errors, such as wrong ink ratios, using the wrong ink, or confusion of cover panel models. Utility Model Content

[0003] In order to solve the above-mentioned deficiencies in the prior art, the utility model provides a cover plate screen printing device with automatic ink dispensing, which can improve the production efficiency and quality control of cover plate screen printing.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] A cover plate screen printing device with automatic ink distribution comprises a conveying mechanism, an ink supply mechanism, a screen mechanism, a scraper mechanism and a PLC controller, wherein the ink supply mechanism, the screen mechanism and the scraper mechanism are located above the conveying mechanism and are arranged in sequence along the conveying direction of the conveying mechanism, and the PLC controller is connected to control the conveying mechanism, the ink supply mechanism, the screen mechanism and the scraper mechanism; the ink supply mechanism comprises a plurality of ink cartridges, a plurality of ink outlet electronic valves, a plurality of ink outlet nozzles, an automatic agitator and an ink supply channel, wherein the ink cartridges, the ink outlet electronic valves and the ink outlet nozzles correspond one to one, and each ink outlet nozzle is connected to the corresponding ink cartridge through the corresponding ink outlet electronic valve, and all the ink outlet nozzles face the automatic agitator; one end of the ink supply channel is connected to the automatic agitator, and the other end extends into the screen mechanism.

[0006] Furthermore, the ink supply channel includes a main pipe, an ink supply electronic valve, a telescopic pipe and an ink supply nozzle, one end of the main pipe is connected to the ink supply nozzle through the ink supply electronic valve and the telescopic pipe in sequence, and the other end of the main pipe is connected to the automatic agitator; when the telescopic pipe is extended, the ink supply nozzle is located above the silk screen of the screen mechanism, and when the telescopic pipe is shortened, the ink supply nozzle is located outside the screen mechanism.

[0007] Furthermore, the ink supply electronic valve is a solenoid valve.

[0008] Furthermore, the screen mechanism includes a screen printing screen and a screen lifting mechanism, and the screen lifting mechanism is connected to drive the screen printing screen to be lifted and lowered relative to the cover plate to be screen printed on the conveying mechanism.

[0009] Furthermore, the scraper mechanism includes an ink scraper, a scraper lifting mechanism and a scraper translation mechanism. The scraper lifting mechanism is connected to drive the ink scraper to lift and lower relative to the cover plate to be screen-printed on the conveying mechanism, and the scraper translation mechanism is connected to drive the ink scraper to translate relative to the cover plate to be screen-printed on the conveying mechanism.

[0010] Furthermore, the cover plate screen printing device also includes a visual mechanism, which is located above the conveying mechanism and behind the ink supply mechanism along the conveying direction of the conveying mechanism, and the PLC controller is connected to control the visual mechanism.

[0011] Furthermore, the cover plate to be screen-printed is provided with a QR code for identification by the visual mechanism.

[0012] Furthermore, the visual mechanism includes a CCD camera.

[0013] Furthermore, the conveying mechanism is a conveyor belt mechanism.

[0014] Furthermore, the ink outlet electronic valve is a solenoid valve.

[0015] The utility model has the following beneficial effects: when the cover plate screen printing device of the utility model is working, the PLC controller first controls the conveying mechanism to convey the cover plate to be screen-printed to the bottom of the screen mechanism, and then controls the ink supply mechanism to provide the screen mechanism with the ink required for screen printing, and finally controls the screen mechanism and the scraper mechanism to cooperate to screen print the ink on the cover plate to be screen-printed; when supplying ink, the PLC controller matches the corresponding ink formula according to the cover plate model of the cover plate to be screen-printed, and then controls each ink outlet electronic valve to open according to the matched ink formula, so that each ink outlet nozzle provides the ink component in the corresponding ink cartridge to the automatic agitator, and controls the feeding ratio of each ink component by controlling the opening time of each ink outlet electronic valve, and finally the automatic agitator stirs each ink component evenly, and provides it to the screen mechanism through the ink supply channel for screen printing, which greatly improves the production efficiency and quality control of cover plate screen printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the cover plate screen printing device provided by the utility model.

[0017] Figure 2 The utility model provides a schematic structural diagram of an ink supply mechanism, a screen mechanism, a scraper mechanism and a visual mechanism in a cover plate screen printing device. DETAILED DESCRIPTION

[0018] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Embodiment 1

[0023] like Figure 1 and 2As shown, a cover plate screen printing device with automatic ink distribution includes a conveying mechanism 10, an ink supply mechanism 20, a screen mechanism 30, a scraper mechanism 40 and a PLC controller (not shown in the figure), wherein the ink supply mechanism 20, the screen mechanism 30 and the scraper mechanism 40 are located above the conveying mechanism 10 and are arranged in sequence along the conveying direction of the conveying mechanism 10, and the PLC controller is connected to control the conveying mechanism 10, the ink supply mechanism 20, the screen mechanism 30 and the scraper mechanism 40; the ink supply mechanism 20 0 includes a plurality of ink cartridges 21, a plurality of ink outlet electronic valves 22, a plurality of ink outlet nozzles 23, an automatic agitator 24 and an ink supply channel 25, wherein the ink cartridges 21, the ink outlet electronic valves 22 and the ink outlet nozzles 23 correspond to each other one by one, each ink outlet nozzle 23 is connected to the corresponding ink cartridge 21 through the corresponding ink outlet electronic valve 22, and all the ink outlet nozzles 23 face the automatic agitator 24; one end of the ink supply channel 25 is connected to the automatic agitator 24, and the other end extends into the screen mechanism 30.

[0024] When the cover plate screen printing device of the utility model is working, the PLC controller first controls the conveying mechanism 10 to convey the cover plate 100 to be screen-printed to the bottom of the screen mechanism 30, and then controls the ink supply mechanism 20 to provide the screen mechanism 30 with the ink required for screen printing, and finally controls the screen mechanism 30 and the scraper mechanism 40 to cooperate to screen print the ink on the cover plate 100 to be screen-printed; when supplying ink, the PLC controller matches the corresponding ink formula according to the cover plate model of the cover plate 100 to be screen-printed, and then controls each ink outlet electronic valve 22 to open according to the matched ink formula, so that each ink outlet nozzle 23 provides the ink component in the corresponding ink cartridge 21 to the automatic agitator 24, and controls the feeding ratio of each ink component by controlling the opening time of each ink outlet electronic valve 22, and finally the automatic agitator 24 stirs each ink component evenly, and provides it to the screen mechanism 30 through the ink supply channel 25 for screen printing, which greatly improves the production efficiency and quality control of cover plate screen printing.

[0025] In specific implementation, the cover plate model of the screen to be screen printed can be manually input by a staff member on the PLC controller, or a special recognition device (such as a visual device) can be set to automatically recognize the cover plate model of the screen to be screen printed.

[0026] In this embodiment, there are four ink cartridges 21, namely the first ink cartridge 211, the second ink cartridge 212, the third ink cartridge 213 and the fourth ink cartridge 214. The first ink cartridge 211 is loaded with ink base material, the second ink cartridge 212 is loaded with diluent, the third ink cartridge 213 is loaded with curing agent, and the fourth ink cartridge 214 is loaded with colorant. The PLC controller controls each ink outlet electronic valve 22 to selectively open to provide one or more of the ink base material, diluent, curing agent and colorant to the automatic agitator 24, and controls the opening time of each ink outlet electronic valve 22 to control the ratio between the ink base material, diluent, curing agent and colorant provided to the automatic agitator 24.

[0027] The ink supply channel 25 includes a main pipe 251, an ink supply electronic valve 252, a telescopic pipe 253 and an ink supply nozzle 254. One end of the main pipe 251 is connected to the ink supply nozzle 254 through the ink supply electronic valve 252 and the telescopic pipe 253 in sequence, and the other end of the main pipe 251 is connected to the automatic agitator 24. When the telescopic pipe 253 is extended, the ink supply nozzle 254 is located above the silk screen of the screen mechanism 30, and when the telescopic pipe 253 is shortened, the ink supply nozzle 254 is located outside the screen mechanism 30.

[0028] In this embodiment, the telescopic pipe 253 is an electric telescopic pipe, which uses a threaded pipe or a bamboo tube made of rubber or metal as the main body, and is driven to extend and retract by a driving device such as a telescopic cylinder, an electric telescopic rod, a screw motor or a piezoelectric film. The ink supply electronic valve 252 is connected to the PLC controller, and is controlled to open by the PLC controller after the automatic mixer completes the ink stirring, so as to provide the stirred ink to the screen mechanism 30 through the ink supply nozzle 254.

[0029] The screen mechanism 30 includes a screen printing screen 31 and a screen lifting mechanism 32 . The screen lifting mechanism 32 is connected to drive the screen printing screen 31 to be lifted and lowered relative to the cover plate 100 to be screen printed on the conveying mechanism 10 .

[0030] The screen lifting mechanism 32 includes two screen lifters, one end of which is fixedly disposed on the frame 200 of the cover plate screen printing device, and the other end of which is respectively connected to the opposite sides of the screen printing screen 31 .

[0031] In this embodiment, the screen lifter may be, but is not limited to, a telescopic cylinder, an electric telescopic rod or a screw motor.

[0032] The scraper mechanism 40 includes an ink scraper 41, a scraper lifting mechanism 42 and a scraper translation mechanism 43. The scraper lifting mechanism 42 is connected to drive the ink scraper 41 to lift and lower relative to the cover plate 100 to be screen-printed on the conveying mechanism 10, and the scraper translation mechanism 43 is connected to drive the ink scraper 41 to translate relative to the cover plate 100 to be screen-printed on the conveying mechanism 10.

[0033] The scraper translation mechanism 43 includes a scraper translation guide rail, a scraper translation slide and a scraper translation device, the scraper translation guide rail and the scraper translation device are arranged on the frame 200 of the cover plate screen printing device, and the extension direction of the scraper translation guide rail is parallel to the ink scraping direction of the cover plate 100 to be screen printed, the scraper translation slide is arranged on the scraper translation guide rail, and the scraper translation device is connected to drive the scraper translation slide to translate on the scraper translation slide rail; the scraper The lifting mechanism 42 comprises a scraper lifting guide rail, a scraper lifting slide and a scraper lifter. The scraper lifting guide rail and the scraper lifter are arranged on the scraper translation slide, and the extension direction of the scraper lifting guide rail is perpendicular to the cover plate 100 to be screen-printed. The scraper lifting slide is arranged on the scraper lifting guide rail, and the scraper lifter is connected to drive the scraper lifting slide to lift and lower on the scraper lifting slide rail; the ink scraper 41 is arranged on the scraper lifting slide.

[0034] In this embodiment, the scraper lifter and scraper translator may not be limited to a telescopic cylinder, an electric telescopic rod or a screw motor.

[0035] In this embodiment, the conveying mechanism 10 is a conveyor belt mechanism, and the ink outlet electronic valve 22 and the ink supply electronic valve 252 are both solenoid valves.

[0036] Embodiment 2

[0037] As an optimization solution of the first embodiment, in this embodiment, if Figure 2 As shown, the cover plate screen printing device also includes a visual mechanism 50 , which is located above the conveying mechanism 10 and behind the ink supply mechanism 20 along the conveying direction of the conveying mechanism 10 , and the PLC controller is connected to control the visual mechanism 50 .

[0038] The cover plate screen printing device of the utility model is used to identify the cover plate model of the cover plate 100 to be screen-printed by setting the visual mechanism 50. When the cover plate 100 to be screen-printed is conveyed forward on the conveying mechanism 10, it first arrives under the visual mechanism 50 and then arrives under the screen mechanism 30. When the screen 31 to be screen-printed arrives under the visual mechanism 50, the visual mechanism 50 identifies the cover plate model of the cover plate 100 to be screen-printed, and provides the identified cover plate model to the PLC controller for matching the ink formula.

[0039] In a specific embodiment, the visual mechanism 50 directly identifies the shape of the screen to be screen-printed 31 based on visual recognition technology, and then matches the corresponding cover plate model according to the identified shape.

[0040] In another specific implementation, the cover plate 100 to be screen-printed is provided with a QR code for identification by the visual mechanism 50. The visual mechanism 50 identifies the QR code of the screen plate 31 to be screen-printed based on the QR code identification technology, and then parses the cover plate model corresponding to the QR code.

[0041] In this embodiment, the visual mechanism 50 includes a CCD camera.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A cover plate screen printing device with automatic ink distribution, characterized in that: It includes a conveying mechanism, an ink supply mechanism, a screen mechanism, a scraper mechanism and a PLC controller, wherein the ink supply mechanism, the screen mechanism and the scraper mechanism are located above the conveying mechanism and are arranged in sequence along the conveying direction of the conveying mechanism, and the PLC controller is connected to control the conveying mechanism, the ink supply mechanism, the screen mechanism and the scraper mechanism; the ink supply mechanism includes a plurality of ink cartridges, a plurality of ink outlet electronic valves, a plurality of ink outlet nozzles, an automatic agitator and an ink supply channel, and the ink cartridges, the ink outlet electronic valves and the ink outlet nozzles correspond one to one, and each ink outlet nozzle is connected to the corresponding ink cartridge through the corresponding ink outlet electronic valve, and all the ink outlet nozzles are facing the automatic agitator; one end of the ink supply channel is connected to the automatic agitator, and the other end extends into the screen mechanism.

2. The cover screen printing device according to claim 1, characterized in that: The ink supply channel includes a main pipeline, an ink supply electronic valve, a telescopic pipeline and an ink supply nozzle. One end of the main pipeline is connected to the ink supply nozzle through the ink supply electronic valve and the telescopic pipeline in sequence, and the other end of the main pipeline is connected to the automatic agitator. When the telescopic pipeline is extended, the ink supply nozzle is located above the silk screen of the screen mechanism, and when the telescopic pipeline is shortened, the ink supply nozzle is located outside the screen mechanism.

3. The cover screen printing device according to claim 2, characterized in that: The ink supply electronic valve is a solenoid valve.

4. The cover screen printing device according to claim 1, characterized in that: The screen mechanism comprises a screen printing screen and a screen lifting mechanism, and the screen lifting mechanism is connected to drive the screen printing screen to be lifted and lowered relative to the cover plate to be screen printed on the conveying mechanism.

5. The cover screen printing device according to claim 1, characterized in that: The scraper mechanism includes an ink scraper, a scraper lifting mechanism and a scraper translation mechanism. The scraper lifting mechanism is connected to drive the ink scraper to lift and lower relative to the cover plate to be screen-printed on the conveying mechanism, and the scraper translation mechanism is connected to drive the ink scraper to translate relative to the cover plate to be screen-printed on the conveying mechanism.

6. The cover screen printing device according to claim 1, characterized in that: The cover plate screen printing device also includes a visual mechanism, which is located above the conveying mechanism and behind the ink supply mechanism along the conveying direction of the conveying mechanism. The PLC controller is connected to control the visual mechanism.

7. The cover screen printing device according to claim 6, characterized in that: The cover plate to be screen printed is provided with a two-dimensional code for identification by the visual mechanism.

8. The cover plate screen printing device according to claim 6, characterized in that: The visual mechanism includes a CCD camera.

9. The cover plate screen printing device according to claim 1, characterized in that: The conveying mechanism is a conveyor belt mechanism.

10. The cover plate screen printing device according to claim 1, characterized in that: The ink outlet electronic valve is a solenoid valve.

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