CN211937636U

CN211937636U - Pre-dipping device

Info

Publication number: CN211937636U
Application number: CN201922070369.0U
Authority: CN
Inventors: 李龙; 江宽
Original assignee: Shengyi Technology Shaanxi Co ltd
Current assignee: Shengyi Technology Shaanxi Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-11-17
Anticipated expiration: 2029-11-26

Abstract

The utility model provides a pre-dipping device, including gluey groove, gumming roller, frictioning device etc.. By adopting the double-sided impregnation process, the uniform impregnation content of the two sides of the glass cloth is ensured, so that the glue forms a uniform glue film on the pre-impregnation roller, and the glass cloth is prevented from deforming due to the coating of the glue. The utility model discloses can solve glass cloth preimpregnation cladding glue solution, improve the problem that glass cloth soaks that the glue is inhomogeneous, the easy wearing and tearing of scraper frictioning.

Description

Pre-dipping device

Technical Field

The utility model relates to a printed circuit is with manufacturing process of covering copper foil laminated board, concretely relates to preimpregnation device.

Background

The glass cloth prepreg is prepared by drying glass cloth and glue solution after the glass cloth and the glue solution are dipped on a dipping device. The traditional glass cloth pre-dipping process method comprises a back coating process and an impregnation process, and when the glass cloth is used for dipping a high-filler glue solution system, the back coating and impregnation process can cause different glue contents on two sides.

At present, the patent for improving permeability, which is applied by the applicant, comprises a device for increasing the weft infiltration of the glass fiber cloth, and the device is used for spraying glue and performing weft infiltration on the glass fiber cloth; the semi-curing device for the copper-clad plate comprises a glue scraping roller which integrates glue scraping and glue spraying; the glue dipping device comprises a glue spraying device arranged above the position between the pre-dipping roller and the second floating roller, and glue is sprayed above the reinforcing material; the weft impregnation effect is enhanced to a certain extent by the scheme, but practical researches in recent years show that an improved space is provided on the basis of the existing impregnation device, and the impregnation effect can be further improved while the operation steps are simplified. Meanwhile, the inventor also researches and discovers that the back coating presoaking adopted by a glass cloth impregnated high-filler glue solution system can cause different glue contents on two sides, and the impregnation presoaking can cause glue solution coating.

Based on this, the applicant has developed a new glue dipping device, namely, a glue scraping device is arranged on one side of a pre-dipping roller, so that the problems can be solved to a certain extent, but because the content of filler in a glue solution system of the composite-based copper-clad plate is high, the scraping edge of the glue scraping device is abraded through long-time glue scraping and friction, and the glue scraping effect is further influenced. Moreover, when a doctor blade is used, the force applied to the reinforcing material is relatively simple, and the impregnation effect is affected. On the other hand, since the blade edge of the blade is thin, when the gap between the blade and the prepreg roll is adjusted, it is difficult to control the adjustment accuracy of the gap.

Disclosure of Invention

The utility model aims at providing a preimpregnation device solves the problem that present gumming device gumming is inhomogeneous, the rubberizing productivity is not enough, the frictioning device edge of a knife easily wears and torn.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a preimpregnation device, include: the device comprises a glue tank, a pre-dipping roller, a spraying device and a glue scraping device; the glue tank is used for containing glue solution; the pre-dipping roller is positioned above the glue groove, and is dipped with glue through the rotation of the pre-dipping roller;

the utility model discloses still include as follows difference technical characteristic:

the spraying device is arranged above the pre-dipping roller and is used for directly spraying glue solution on the pre-dipping roller, and the range of the sprayed glue solution covers the whole width of the pre-dipping roller;

the glue scraping device is positioned on one side of the pre-dipping roller and comprises a gap adjusting mechanism and a glue scraping roller, one side of the glue scraping roller is fixed on the gap adjusting mechanism, and the other side of the glue scraping roller is close to the pre-dipping roller and is used for scraping glue on the whole width of the pre-dipping roller;

the reinforcing material is wound on the lower surface of the prepreg roller.

Specifically, spray set includes that inside cavity spouts the rubber roll, it is provided with linear opening to spout rubber roll below, linear open-ended opening interval is crescent to both sides from the centre.

As another embodiment, the spraying device comprises a glue spraying roller with a hollow inner part, a plurality of holes with unequal radiuses are arranged below the glue spraying roller, and the hole diameters of the holes are sequentially increased in equal proportion from the middle to two sides.

Further, the hole pitch is 20mm to 100 mm.

Further, the angle of the scraping roller is adjusted through a gap adjusting mechanism.

Furthermore, the gap between the rubber scraping roller and the pre-dipping roller is adjusted within 0-2000 um.

Preferably, the rubber scraping roller is a stainless steel roller or a ceramic roller.

The utility model has the advantages that:

the utility model aims at providing a preimpregnation device has the infiltration nature that improves reinforcing material, improves the gumming homogeneity, adjusts preimpregnation glue content, improves product dimensional stability, improves the rubberizing productivity.

And simultaneously, the utility model discloses a gumming device easily clears up, long service life, be convenient for adjust clearance, control simple, can ensure the production productivity, the benefit of improving.

Drawings

Fig. 1 is a schematic view of the pre-dipping apparatus of the present invention.

Fig. 2 is a schematic diagram of the spray device, wherein a is a front view, b is a side view, and c is a top view.

In the figure: 1. the device comprises a glue groove, 2, a pre-dipping roller, 3, a spraying device and 4, a glue scraping device.

Detailed Description

The inventor of the utility model accurately grasps the main contradiction by thoroughly analyzing the defects of the production process: the back coating presoaking adopted by the high-filler glue solution system for dipping the glass cloth can lead to different glue contents on two sides, and the presoaking of the dipping can lead to the deformation of the glass cloth because of coating the glue solution, thereby providing a specific and feasible solution for the practical production problem.

Example 1:

as shown in fig. 1-2, the present embodiment provides a prepreg device comprising: a glue groove 1, a pre-dipping roller 2, a spraying device 3 and a glue scraping device 4. The glue tank 1 is a device for containing glue solution, the up-down position can be adjusted, the operation is convenient, and meanwhile, the contact area of the glue solution and the pre-dipping roller 2 can be ensured. The pre-dipping roller 2 is fixed right above the glue groove 1, the rotating speed can be adjusted, and different glue dipping contents can be adjusted according to different requirements. The spraying device 3 is arranged above the pre-dipping roller 2, and can spray glue in the whole width, and the whole width of the pre-dipping roller is filled with the glue and is uniformly contacted with the glass cloth. The glue scraping device 4 is arranged on the pre-dipping roller 2 and is close to the pre-dipping roller 2, the angle of the glue scraping device 4 can be adjusted (0-90 degrees), and the gap (0-2000 um) between the glue scraping device and the pre-dipping roller 2 can also be adjusted, so that glue can be completely scraped or extruded to form a glue film with a certain thickness by adjusting the gap of the scraper, the glue dipping uniformity is ensured, the wettability of a reinforced material is improved, the problem that the glue coating is caused by the uneven glue carrying of the pre-dipping roller is avoided, and the glue dipping effect of the glass cloth of a high-filler glue solution system.

The utility model discloses spray set 3 (as figure 2) is used in, can whole width spray glue, and the whole width of preimpregnation roller is full of glue and glass cloth even contact, is carrying out the gumming, guarantees that the preimpregnation is continuous even.

Considering that glue is poured from the middle, the middle pressure is high, and in order to balance the glue spraying amount of each opening, the spraying device comprises a glue spraying roller with a hollow inner part, a linear opening is arranged below the glue spraying roller, and the opening distance of the linear opening is gradually increased from the middle to two sides.

As another embodiment, considering that glue is poured from the middle, the middle pressure is higher, and in order to balance the glue spraying amount of each opening, the spraying device comprises a glue spraying roller with a hollow inner part, a plurality of holes with unequal radiuses are arranged below the glue spraying roller, and the hole diameters of the holes are sequentially increased in equal proportion from the middle to two sides.

The utility model discloses frictioning device 4 is used in, can adjust clearance and angle, guarantees to scrape glue clean or through adjusting the glued membrane that the scraper clearance formed certain thickness with the glue extrusion, guarantees the impregnation homogeneity.

The utility model discloses scraper device 4's clearance or angle modulation are realized through the cylinder, for example figure 1, for the conventional design of mechanical structure, do not do the detailing here.

From the above, it is obvious to those skilled in the art that various other changes and modifications can be made according to the technical solution and the technical idea of the present invention, and all such changes and modifications should fall within the protection scope of the claims of the present invention.

Claims

1. A pre-preg device, comprising: the device comprises a glue groove (1), a pre-dipping roller (2), a spraying device (3) and a glue scraping device (4); the glue tank (1) is used for containing glue solution; the presoaking roller (2) is positioned in the glue tank (1), the lower surface of the presoaking roller is contacted with glue solution, and the rotating presoaking roller (2) is used for dipping glue;

the device is characterized in that the spraying device (3) is arranged above the pre-dipping roller (2) and is used for directly spraying glue solution on the pre-dipping roller (2), and the spraying glue solution range covers the whole width of the pre-dipping roller (2);

the glue scraping device (4) is positioned on one side of the pre-dipping roller (2) and comprises a gap adjusting mechanism and a glue scraping roller, one side of the glue scraping roller is fixed on the gap adjusting mechanism, and the other side of the glue scraping roller is close to the pre-dipping roller (2) and is used for scraping glue on the whole width of the pre-dipping roller (2);

the reinforcing material is wound on the lower surface of the prepreg roller.

2. The pre-soaking device according to claim 1, characterized in that the spraying device (3) comprises a glue spraying roller with a hollow interior, linear openings are arranged below the glue spraying roller, and the opening distance of the linear openings is gradually increased from the middle to two sides.

3. The pre-soaking device according to claim 1, characterized in that the spraying device (3) comprises a hollow glue spraying roller, a plurality of holes with unequal radii are arranged below the glue spraying roller, and the hole diameters of the holes are sequentially increased in equal proportion from the middle to two sides.

4. The prepreg of claim 3, wherein the hole pitch is 20mm to 100 mm.

5. The pre-preg apparatus according to claim 2 or 3, wherein the angle of the squeegee is adjusted by a gap adjustment mechanism.

6. The pre-dipping device according to claim 2 or 3, wherein the gap between the squeegee roller and the pre-dipping roller (2) is adjusted within 0-2000 um.

7. The pre-preg apparatus according to claim 2 or 3, wherein the doctor blade roll is a stainless steel roll or a ceramic roll.