A conductive silver paste spraying and drying device

Abstract

The utility model relates to touch -sensitive screen processing technical field, and disclose a kind of conductive silver paste spraying drying device, including conveying equipment main body, processing shell, electrostatic spraying equipment main body and gas storage shell, the processing shell fixed mounting is at the top of conveying equipment main body, the electrostatic spraying equipment main body is embedded in the top side of processing shell, the gas storage shell is embedded in the other side of the top of processing shell, it is characterized by: it further includes: drying mechanism and auxiliary mechanism, the drying mechanism is arranged in the inside of processing shell.The utility model carries out drying operation to material after spraying by drying shell and heating plate preliminary, and cooperate pump, conveying pipe network, aeration shell, heating resistance wire and aeration fan can make inert gas circulate and heat, further improve drying effect, while, avoid temperature too high by inert gas, lead to silver line oxidation, so that the degree of attractiveness is affected, simultaneously lead to resistance increase influence later product use.

Description

Technical Field

[0001] This utility model relates to the field of touch screen processing technology, specifically a conductive silver paste spraying and drying device. Background Technology

[0002] The core function of a touchscreen is to realize "touch input" and "signal transmission". It requires a transparent conductive film (touch sensor) inside, which is responsible for sensing the touch position and transmitting electrical signals to the control chip. Silver nanowires are the key material for making this transparent conductive film. They utilize the high conductivity of silver and the characteristics of nanoscale wire diameter to form a conductive network in the film, which not only ensures efficient current transmission, but also hardly affects light transmission due to the extremely fine wire diameter and uniform distribution (transparency can reach more than 90%).

[0003] An existing patent (publication number: CN216668256U) discloses a vertical glass material drying device for the preparation of conductive silver paste. The vertical glass material drying device for the preparation of conductive silver paste provided by this utility model is ingeniously designed, with the inlet located at the bottom and the outlet located at the top. This allows the glass material to be dried during the process of being transported from the bottom to the top. At the same time, since the outlet is at the top, the height of the drying device itself can be used as the turnover height for sending the glass material to the next process container, which makes the configuration space requirements of the equipment more flexible and facilitates configuration and installation.

[0004] To address the aforementioned issues, while existing patents have proposed solutions that can bake materials using components such as the discharge port, in practice, after spraying silver paste onto the PET surface to form silver wires, the silver wires need to be dried. However, excessively high temperatures can cause the silver wires to oxidize, resulting in an oxide layer on the surface of the silver wires, which increases resistance and affects the later use of the product. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology involves spraying silver paste onto the PET surface to form silver wires, the silver wires need to be dried. However, if the temperature is too high, the silver wires are prone to oxidation, resulting in an oxide layer on the surface of the silver wires, which increases the resistance and affects the later use of the product.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A conductive silver paste spraying and drying device includes a conveying equipment body, a processing shell, an electrostatic spraying equipment body, and a gas storage shell. The processing shell is fixedly installed on the top of the conveying equipment body, the electrostatic spraying equipment body is embedded in one side of the top of the processing shell, and the gas storage shell is embedded in the other side of the top of the processing shell. The device is characterized by further comprising:

[0009] The drying mechanism is located inside the processing shell, and the auxiliary mechanism is located on one side of the gas storage shell.

[0010] As a further embodiment of this utility model: the drying mechanism includes an electric push rod, which is fixedly installed at the bottom of the air storage shell, and the power output end of the electric push rod is fixedly installed with a drying shell, and heating plates are embedded on both sides of the outer wall of the drying shell.

[0011] As a further improvement of this utility model: a pump is embedded at the top of the gas storage shell, and a delivery pipeline is fixedly installed at the output end of the pump.

[0012] As a further embodiment of this utility model: a vent shell is inserted into the axial end of the conveying pipeline, and a limit block is fixedly installed at one end of the conveying pipeline that inserts into the vent shell.

[0013] As a further embodiment of this utility model: a mounting frame is embedded inside the vent housing, and a heating resistance wire is embedded inside the mounting frame; a ventilation fan is embedded inside the axial end of the vent housing.

[0014] As a further embodiment of this utility model: the auxiliary mechanism includes a sleeve, which is sleeved on the axial outer wall of the conveying pipeline, and an installation cylinder protrudes from one side of the conveying pipeline inside the sleeve.

[0015] As a further embodiment of this utility model: a sliding plate extends from the bottom end of the drying shell, and an abutment plate is embedded at the bottom end of the sliding plate, with a sealing gasket fixedly installed below the abutment plate.

[0016] As a further improvement of this utility model: a fixing rod is fixedly installed on one side of the sliding plate at the top of the contact plate, and a spring is sleeved on the outside of the fixing rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses a drying shell and a heating plate to initially dry the sprayed material. In conjunction with a pump, conveying pipeline, ventilation shell, heating resistance wire and ventilation fan, inert gas can be circulated and heated to further improve the drying effect. At the same time, the inert gas prevents the temperature from being too high, which could cause the silver wire to oxidize, thus affecting the appearance and increasing the resistance, which would affect the use of the product later.

[0019] 2. This utility model uses a sleeve and an installation cylinder to facilitate the disassembly and replacement of the filter packing, which can filter the inert gas in the circulation process, improve the purification degree and avoid affecting the silver wire after entering the drying shell. At the same time, with the cooperation of the contact plate, sliding plate, sealing gasket, fixing rod and spring, it can follow the adjustment of the electric push rod to always keep the contact plate driving the sealing gasket to adhere to the body of the conveying equipment, maintain the airtightness and avoid leakage, which would lead to the loss of temperature and inert gas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a conductive silver paste spraying and drying device.

[0021] Figure 2 A schematic diagram of the drying shell structure of a conductive silver paste spraying and drying device;

[0022] Figure 3 A schematic diagram of the mounting frame structure for a conductive silver paste spraying and drying device;

[0023] Figure 4 A schematic diagram of the mounting cylinder structure of a conductive silver paste spraying and drying device;

[0024] Figure 5 A schematic diagram of a sliding plate structure for a conductive silver paste spraying and drying device;

[0025] In the diagram: 1. Main body of conveying equipment; 2. Processing shell; 3. Main body of electrostatic spraying equipment; 4. Air storage shell; 5. Drying mechanism; 501. Electric push rod; 502. Drying shell; 503. Heating plate; 504. Pump; 505. Conveying pipeline; 506. Ventilation shell; 507. Limiting block; 508. Mounting frame; 509. Heating resistance wire; 510. Ventilation fan; 6. Auxiliary mechanism; 601. Sleeve; 602. Mounting cylinder; 603. Contact plate; 604. Sliding plate; 605. Sealing gasket; 606. Fixing rod; 607. Spring. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Example 1:

[0030] Please see Figures 1-4 This is the first embodiment of the present invention.

[0031] This embodiment provides a conductive silver paste spraying and drying device, including a conveying equipment body 1, a processing shell 2, an electrostatic spraying equipment body 3, and a gas storage shell 4. The processing shell 2 is fixedly installed on the top of the conveying equipment body 1, the electrostatic spraying equipment body 3 is embedded in one side of the top of the processing shell 2, and the gas storage shell 4 is embedded in the other side of the top of the processing shell 2. The device is characterized by further comprising:

[0032] The drying mechanism 5 is located inside the processing shell 2, and the auxiliary mechanism 6 is located on one side of the gas storage shell 4.

[0033] Specifically, the drying mechanism 5 includes an electric push rod 501, which is fixedly installed at the bottom of the air storage shell 4. The power output end of the electric push rod 501 is fixedly installed with a drying shell 502, and heating plates 503 are embedded on both sides of the outer wall of the drying shell 502.

[0034] Furthermore, after the material is sprayed by the main body 3 of the electrostatic spraying equipment, it is conveyed by the main body 1 of the conveying equipment to the bottom of the drying shell 502. Then, the electric push rod 501 pushes the drying shell 502 to cover the material and cooperates with the heating plate 503 to increase the internal temperature for preliminary drying.

[0035] Specifically, a pump 504 is embedded at the top of the gas storage shell 4, and a delivery pipeline 505 is fixedly installed at the output end of the pump 504.

[0036] Furthermore, through the cooperation of pump 504 and delivery pipeline 505, the inert gas inside the gas storage shell 4 can circulate and enter the drying shell 502 to avoid excessive heat causing oxidation of the silver wire.

[0037] Specifically, a ventilator 506 is inserted into the axial end of the conveying pipeline 505, and a limit block 507 is fixedly installed at one end of the conveying pipeline 505 that is inserted into the ventilator 506.

[0038] Furthermore, the vent housing 506 and the delivery pipeline 505 form a sliding structure, which maintains ventilation while being able to move under the drive of the electric push rod 501, and cooperates with the limiting block 507 to prevent detachment. At the same time, the limiting block 507 adheres to the rubber pad to maintain airtightness.

[0039] Specifically, a mounting bracket 508 is embedded inside the vent housing 506, a heating resistance wire 509 is embedded inside the mounting bracket 508, and a ventilation fan 510 is embedded inside the axial end of the vent housing 506.

[0040] Furthermore, the heating resistance wire 509 is used to increase the temperature of the circulating inert gas, and the ventilation fan 510 is used to guide the inert gas into the drying shell 502, thereby further improving the drying effect.

[0041] In use, during product design, the required channel pattern is first designed and imported into the main body 3 of the electrostatic spraying equipment. Simultaneously, the main body 3 of the electrostatic spraying equipment sprays the silver wire solution onto the material to obtain the required touchscreen circuitry. The material is then sprayed and baked across its entire surface, effectively avoiding color differences caused by etching defects, avoiding laser processing of the material, and reducing laser processing costs. When the material is conveyed by the main body 1 to the corresponding drying shell 502, the electric push rod 501 pushes the drying shell 502, causing the ventilation shell 506 to slide along the conveying network 505 and close, sealing the material. The heating plate 503 raises the temperature for initial drying. Subsequently, the pump 504 and the conveying network 505 work together to extract and circulate the inert gas in the storage shell 4. The heating resistance wire 509 of the mounting bracket 508 and the ventilation fan 510 further improve the drying effect. The limiting block 507 allows the conveying network 505 and the ventilation shell 506 to slide and engage, preventing detachment and maintaining airtightness.

[0042] In summary, by sealing the drying shell 502, the heat from the heating plate 503 is prevented from being lost, thus achieving a drying effect on the material. In conjunction with the guidance and circulation of the conveying pipeline 505 of the pump 504, and the blowing of the ventilation fan 510, the inert gas is allowed to circulate through the drying shell 502 after heating, thereby further improving the drying effect and preventing oxidation due to excessive temperature.

[0043] Example 2:

[0044] Please see Figure 1 , Figure 4 and Figure 5 This is the second embodiment of the present utility model.

[0045] Specifically, the auxiliary mechanism 6 includes a sleeve 601, which is sleeved on the axial outer wall of the conveying pipeline 505, and an installation cylinder 602 protrudes from one side of the conveying pipeline 505 inside the sleeve 601.

[0046] Furthermore, the sleeve 601 is threadedly connected to the delivery pipeline 505, which facilitates adjustment and sliding, thereby allowing the sleeve 601 to be disassembled and assembled. The sleeve 601 is equipped with a filter packing layer for inert gas, which can maintain purity.

[0047] Specifically, a sliding plate 604 extends from the bottom of the drying shell 502, an abutment plate 603 is embedded at the bottom of the sliding plate 604, and a sealing gasket 605 is fixedly installed below the abutment plate 603.

[0048] Furthermore, by sliding the sliding plate 604 along the drying shell 502, the electric push rod 501 can be adjusted according to the material thickness, ensuring that the sealing gasket 605 at the bottom of the contact plate 603 always adheres to the conveying equipment body 1, maintaining a tight seal and preventing inert gas leakage.

[0049] Specifically, a fixing rod 606 is fixedly installed on one side of the sliding plate 604 at the top of the contact plate 603, and a spring 607 is sleeved on the outside of the fixing rod 606.

[0050] Furthermore, with the cooperation of spring 607, the contact plate 603 can be elastically pressed to apply a certain pressure, preventing loosening and gas leakage. In addition, the fixing rod 606 provides support during the extension and retraction of spring 607. A through hole corresponding to fixing rod 606 is opened in the drying shell 502 to prevent the device from being limited.

[0051] In use, the sleeve 601 is adjusted to allow for the disassembly and maintenance of the mounting cylinder 602, replacement of the internal filter packing, filtration and control of the flowing inert gas, and, in conjunction with the elastic resistance of the spring 607, the contact plate 603 slides stably under the action of the sliding plate 604, allowing the sealing gasket 605 to adhere to the main body 1 of the conveying equipment, thereby achieving a sealing effect to prevent inert gas leakage. The fixing rod 606 also supports the spring 607. The device is equipped with a control terminal, sensors, and other devices for pre-programming and controlling each power component, thereby achieving seamless process connection and maintaining automation.

[0052] In summary, the filter layer inside the mounting cylinder 602 can achieve a filtering effect during the circulation of inert gas. The sleeve 601 facilitates the replacement and maintenance of the mounting cylinder 602. With the elastic push of the spring 607, the sealing gasket 605 at the bottom of the contact plate 603 is always in contact with the main body 1 of the conveying equipment when the electric push rod 501 is adjusted according to the material thickness, thus preventing inert gas leakage. The fixing rod 606 supports the spring 607 to prevent twisting that could affect the overall stability.

[0053] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0054] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0055] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrically conductive silver paste spray-drying apparatus comprising: The equipment comprises a conveying device body (1), a processing shell (2), an electrostatic spraying device body (3), and a gas storage shell (4). The processing shell (2) is fixedly installed on the top of the conveying device body (1). The electrostatic spraying device body (3) is embedded in one side of the top of the processing shell (2), and the gas storage shell (4) is embedded in the other side of the top of the processing shell (2). The equipment is characterized by further comprising: The drying mechanism (5) and the auxiliary mechanism (6) are provided. The drying mechanism (5) is located inside the processing shell (2), and the auxiliary mechanism (6) is located on one side of the gas storage shell (4).

2. The conductive silver paste spray drying device according to claim 1, characterized in that: The drying mechanism (5) includes an electric push rod (501), which is fixedly installed at the bottom of the gas storage shell (4), and a drying shell (502) is fixedly installed at the power output end of the electric push rod (501). Heating plates (503) are embedded on both sides of the outer wall of the drying shell (502).

3. The conductive silver paste spray drying device according to claim 1, characterized in that: The top of the gas storage shell (4) is fitted with a pump (504), and the output end of the pump (504) is fixedly installed with a delivery pipeline (505).

4. The conductive silver paste spray drying device according to claim 3, characterized in that: A ventilated shell (506) is inserted into the axial end of the conveying pipeline (505), and a limit block (507) is fixedly installed at one end of the conveying pipeline (505) that is inserted into the ventilated shell (506).

5. The conductive silver paste spray drying device according to claim 4, characterized in that: The vent housing (506) is internally fitted with a mounting bracket (508), and the mounting bracket (508) is internally fitted with a heating resistance wire (509). The vent housing (506) is internally fitted with a ventilation fan (510) at its axial end.

6. The conductive silver paste spray drying device of claim 1, wherein: The auxiliary mechanism (6) includes a sleeve (601), which is sleeved on the axial outer wall of the conveying pipeline (505), and an installation cylinder (602) protrudes from one side of the conveying pipeline (505) inside the sleeve (601).

7. The conductive silver paste spray drying device of claim 2, wherein: A sliding plate (604) extends from the bottom of the drying shell (502), and an abutment plate (603) is embedded at the bottom of the sliding plate (604). A sealing gasket (605) is fixedly installed below the abutment plate (603).

8. The conductive silver paste spray drying device of claim 7, wherein: A fixing rod (606) is fixedly installed on one side of the sliding plate (604) at the top of the contact plate (603), and a spring (607) is sleeved on the outside of the fixing rod (606).

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