Glue dipping device capable of preventing glue solution filler from precipitating

Abstract

The utility model discloses a gum dipping device for preventing gum solution filler from precipitating, which comprises a material dipping device, prepreg is dipped by the material dipping device, and the material dipping device comprises a dipping tank, an ultrasonic vibration plate, an ultrasonic generator, an ultrasonic transducer and a guide roller group; the ultrasonic vibration plate is immersed in the impregnation tank, and the ultrasonic transducer is fixedly packaged in the ultrasonic vibration plate; the ultrasonic transducer is connected with the ultrasonic generator; the ultrasonic generator is positioned on the outer side of the material soaking device; a part of the guide roller group is positioned in the impregnation tank; micro-precipitation during gluing is prevented by utilizing a principle that ultrasonic vibration generated by the ultrasonic vibration plate is dispersed and emulsified, so that the condition of filler precipitation in the impregnation tank is improved, and filler precipitation during large-scale long-time production is prevented; the production efficiency is improved, the productivity is increased, meanwhile, the situation that filler white points appear in products is reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the glue impregnation field technology of semi-cured sheet production in copper clad laminates, in particular to a glue impregnation device for preventing glue liquid filler from precipitating. Background Art

[0002] As we all know, copper clad laminate is the basic material for making circuit boards (PCBs). It is a plate-like material made by impregnating prepreg (such as glass fiber cloth / paper or other reinforcing materials) with resin and then curing it to form a semi-cured sheet (prepreg), and then covering one or both sides with copper foil and hot pressing.

[0003] The glue dipping tank is one of the main production equipment for prepreg. In order to reduce costs and resin content while meeting the various properties of copper clad laminates, various solid fillers such as calcium carbonate, aluminum oxide, and silicon oxide are added to the resin in the production process, which is a technology commonly used in this industry. Since the glue dipping tank has a certain volume (generally 200L to 400L), the glue absorption position of the glass fiber cloth is always at the upper part of the glue tank. In order to prevent glue shortage or inability to dip in the coating process, the glue tank liquid level must always be kept at a high level. Since the specific gravity of the solid filler itself is greater than that of the resin, there will be filler precipitation at the bottom of the glue tank, that is, the filler and resin are slightly stratified, and the filler precipitation will cause problems such as uneven resin content of the prepreg, blockage of the glue inlet pipe, and poor appearance of bubbles;

[0004] Secondly, it is necessary to shut down the machine regularly for cleaning, which affects production efficiency. If a large amount of filler sedimentation is not cleaned in time, it will cause white spots of filler in the copper clad laminate substrate, affecting the quality of the copper clad laminate.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the utility model aims to solve the deficiencies in the prior art, and its main purpose is to provide a dipping device for preventing the sedimentation of glue liquid fillers. Through the design of ultrasonic vibration plates, ultrasonic generators, and ultrasonic transducers, the utility model effectively solves the problems in traditional technologies such as uneven resin content of semi-cured sheets, blockage of glue inlet pipes, and poor appearance of bubbles caused by filler sedimentation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A glue dipping device for preventing glue filler from settling comprises a dipping device, wherein a prepreg is impregnated through the dipping device, wherein the dipping device comprises a dipping tank, an ultrasonic vibration plate, an ultrasonic generator, an ultrasonic transducer and a guide roller group; the ultrasonic vibration plate is immersed in the dipping tank, and the ultrasonic transducer is fixedly packaged in the ultrasonic vibration plate; the ultrasonic transducer is connected to the ultrasonic generator; the ultrasonic generator is located outside the dipping device; and part of the guide roller group is located in the dipping tank.

[0009] As a preferred embodiment, the impregnation device also has a cooling water inlet and a cooling water outlet, which are respectively connected to the impregnation tank, the cooling water inlet is located on the side of the impregnation tank inlet, and the cooling water outlet is located on the side of the ultrasonic vibration plate.

[0010] As a preferred solution, the guide roller group is used to tension the prepreg, and the guide roller group includes a plurality of guide rollers, each guide roller is staggeredly installed in the impregnation tank from top to bottom, and the prepreg goes around each guide roller from top to bottom into the impregnation tank, and at least one guide roller is located outside the impregnation tank. This ensures that the prepreg entering the impregnation tank is already in a loose state, which better ensures that the prepreg enters the impregnation tank and penetrates the glue faster, thereby improving production efficiency.

[0011] As a preferred solution, the frequency of the ultrasonic transducer is 10K-60K.

[0012] As a preferred solution, the power of the ultrasonic transducer is 1kw-6kw.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly prevents micro-precipitation during gluing by designing an ultrasonic vibration plate, an ultrasonic generator, and an ultrasonic transducer, and utilizes the ultrasonic vibration dispersion emulsification principle generated by the ultrasonic vibration plate, so as to improve the sedimentation of fillers in the impregnation tank, and prevent the sedimentation of fillers during large-scale and long-term production; improves production efficiency, increases production capacity, and reduces the occurrence of filler white spots in the product, thereby improving the quality of the product;

[0014] The second step is to connect the external power supply of the ultrasonic generator and use the strong ultrasonic sound field generated by the ultrasonic vibration plate to clean the impregnation tank, ensuring that the impregnation tank is always maintained in a clean state, greatly reducing the frequency of shutdown for cleaning; effectively solving the problem of filler precipitation in traditional technology causing uneven resin content in the semi-cured sheet, blockage in the glue inlet pipe and poor appearance of bubbles.

[0015] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the utility model;

[0017] Figure 2 It is a general control block diagram of an embodiment of the utility model.

[0018] Description of the accompanying drawings:

[0019] 10. Dipping device 11. Impregnation tank

[0020] 12. Ultrasonic vibration plate 13. Ultrasonic generator

[0021] 14. Ultrasonic transducer 15. Guide roller

[0022] 16. Cooling water inlet 17. Cooling water outlet

[0023] 20. Prepreg. DETAILED DESCRIPTION

[0024] Please refer to Figure 1 to Figure 2 As shown, it shows the specific structure of an embodiment of the utility model.

[0025] In the description of the present invention, it should be noted that directional words such as the terms "up", "down", "front", "back", "left", "right", etc., which indicate directions and positional relationships, are based on the directions or positional relationships shown in the drawings or during normal wearing and use. They 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 direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0026] A glue dipping device for preventing glue liquid filler from settling comprises a material dipping device 10.

[0027] The prepreg 20 is impregnated by the impregnation device 10, which includes an impregnation tank 11, an ultrasonic vibration plate 12, an ultrasonic generator 13, an ultrasonic transducer 14 and a guide roller group; the ultrasonic vibration plate 12 is immersed in the impregnation tank 11, and the ultrasonic transducer 14 is fixedly packaged in the ultrasonic vibration plate 12; the ultrasonic transducer 14 is connected to the ultrasonic generator 13; the ultrasonic generator 13 is located outside the impregnation device 10; and part of the guide roller group is located in the impregnation tank 11. Preferably, the frequency of the ultrasonic transducer 14 is 10K-60K. Preferably, the power of the ultrasonic transducer 14 is 1kw-6kw.

[0028] The ultrasonic generator 13 is connected to an external 220V AC power supply. After energy conversion, the ultrasonic vibration plate 12 finally emits ultrasonic waves of different frequencies. According to actual application needs, during general cleaning, the ultrasonic frequency emitted by the ultrasonic vibration plate 12 is controlled between 10K-60K. In the impregnation tank 11, the ultrasonic transducer 14 in the ultrasonic vibration plate 12 generates sparse and dense ultrasonic waves to symmetrically radiate, so that the liquid in the impregnation tank 11 flows. When the conditions for forming standing waves are met, ultrasonic standing waves are formed in the impregnation tank 11.

[0029] Preferably, the impregnation device 10 also has a cooling water inlet 16 and a cooling water outlet 17, and the cooling water inlet 16 and the cooling water outlet 17 are respectively connected to the impregnation tank 11, the cooling water inlet 16 is located on the side of the inlet of the impregnation tank 11, and the cooling water outlet 17 is located on the side of the ultrasonic vibration plate 12.

[0030] Preferably, the guide roller group is used to tension the prepreg 20, and the guide roller group includes a plurality of guide rollers 15, and the guide rollers 15 are installed in the impregnation tank 11 in an alternating manner from top to bottom. The prepreg 20 goes around the guide rollers 15 and enters the impregnation tank 11 from top to bottom, and at least one guide roller 15 is located outside the impregnation tank 11. This ensures that the prepreg 20 entering the impregnation tank 11 is already in a loose state, which better ensures that the prepreg 20 enters the impregnation tank 11 and penetrates the glue faster, thereby improving production efficiency.

[0031] The design focus of the utility model is that it mainly uses the design of an ultrasonic vibration plate, an ultrasonic generator, and an ultrasonic transducer, and utilizes the ultrasonic vibration dispersion emulsification principle generated by the ultrasonic vibration plate to prevent micro-precipitation during gluing, thereby improving the sedimentation of fillers in the impregnation tank, and preventing the sedimentation of fillers during large-scale and long-term production; it improves production efficiency, increases production capacity, and reduces the number of filler white spots in the product, thereby improving product quality;

[0032] The second step is to connect the external power supply of the ultrasonic generator and use the strong ultrasonic sound field generated by the ultrasonic vibration plate to clean the impregnation tank, ensuring that the impregnation tank is always maintained in a clean state, greatly reducing the frequency of shutdown for cleaning; effectively solving the problem of filler precipitation in traditional technology causing uneven resin content in the semi-cured sheet, blockage in the glue inlet pipe and poor appearance of bubbles.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A glue dipping device for preventing glue filler from settling, characterized in that: The invention comprises a material impregnation device, wherein the prepreg is impregnated through the material impregnation device, wherein the material impregnation device comprises an impregnation tank, an ultrasonic vibration plate, an ultrasonic generator, an ultrasonic transducer and a guide roller group; the ultrasonic vibration plate is immersed in the impregnation tank, and the ultrasonic transducer is fixedly packaged in the ultrasonic vibration plate; the ultrasonic transducer is connected to the ultrasonic generator; the ultrasonic generator is located outside the material impregnation device; and part of the guide roller group is located in the impregnation tank.

2. The glue dipping device for preventing glue filler from settling according to claim 1, characterized in that: The impregnation device also has a cooling water inlet and a cooling water outlet, which are respectively connected to the impregnation tank. The cooling water inlet is located beside the impregnation tank inlet, and the cooling water outlet is located beside the ultrasonic vibration plate.

3. The glue dipping device for preventing glue filler from settling according to claim 1, characterized in that: The guide roller group is used to tension the prepreg. The guide roller group includes multiple guide rollers, which are installed in an impregnation tank in an alternating manner from top to bottom. The prepreg enters the impregnation tank from top to bottom around the guide rollers, and at least one guide roller is located outside the impregnation tank.

4. The glue dipping device for preventing glue filler from settling according to claim 1, characterized in that: The frequency of the ultrasonic transducer is 10K-60K.

5. The glue dipping device for preventing glue filler from settling according to claim 1, characterized in that: The power of the ultrasonic transducer is 1kw-6kw.

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