阅读说明：本技术 一种高导热覆铜板制备方法 (Preparation method of high-thermal-conductivity copper-clad plate ) 是由 苏晓渭 刘强 李勇军 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种高导热覆铜板制备方法,包括如下步骤：切割增强材料板；打磨所述增强材料板附铜面,随后用涂抹装置在所述增强材料板覆铜面上涂抹导热胶；将所述增强材料板附铜面与铜箔一面贴合,用于热压机进行热压,制得高导热覆铜板,通过涂抹装置中覆铜板夹紧运输单元带动增强材料板移动到涂抹单元底端,通过涂抹单元中第三电动伸缩杆带动涂抹轮与增强材料板接触,通过第四电动伸缩杆带动涂抹轮滚动涂抹,与现有涂抹刷涂抹相比,减少涂抹面凹凸不平,从而使得覆铜板制备过程在进行涂抹导热胶时,涂抹更加平滑,进而使得导热胶与铜箔更加贴合,导热效果更好。(The invention discloses a preparation method of a high-thermal-conductivity copper-clad plate, which comprises the following steps: cutting the reinforcing material plate; polishing the copper-attached surface of the reinforced material plate, and then coating heat-conducting glue on the copper-attached surface of the reinforced material plate by using a coating device; will reinforcing material board attaches copper face and the laminating of copper foil one side, be used for the hot press to carry out the hot pressing, make high heat conduction copper-clad plate, press from both sides tight transport unit through paining in the device copper-clad plate and drive reinforcing material board and remove to paint the unit bottom, paint wheel and reinforcing material board contact through paining in the unit third electric telescopic handle drive, paint the wheel roll through the drive of fourth electric telescopic handle and paint, paint with the current brush of smearing and compare, the face unevenness is paintd in the reduction, thereby make copper-clad plate preparation process when paining the heat-conducting glue, paint more level and smooth, and then make the heat-conducting glue laminate with the copper foil more, the heat conduction effect is better.)

1. A preparation method of a high-thermal-conductivity copper-clad plate is characterized by comprising the following steps: the method comprises the following steps:

cutting the reinforcing material plate;

polishing the copper-attached surface of the reinforced material plate, and then coating heat-conducting glue on the copper-attached surface of the reinforced material plate by using a coating device;

and (3) attaching the copper-attached surface of the reinforced material plate to one surface of the copper foil, and performing hot pressing on the reinforced material plate by using a hot press to obtain the high-thermal-conductivity copper-clad plate.

2. The preparation method of the high thermal conductivity copper-clad plate according to claim 1, wherein the method comprises the following steps: the smearing device comprises a first supporting plate (1), wherein a copper-clad plate clamping and transporting unit (2) is fixedly mounted in the middle of the top surface of the first supporting plate (1), an adjustable smearing liquid placing unit (3) is arranged in the middle of one end of the copper-clad plate clamping and transporting unit (2), and a smearing unit (4) is fixedly mounted at one end of the top surface of the first supporting plate (1).

3. The preparation method of the high thermal conductivity copper-clad plate according to claim 2, wherein: copper-clad plate presss from both sides tight transport unit (2) and includes first motor (21), first motor (21) output is connected with first lead screw (22), just first motor (21) and first bracing piece (23) one side fixed connection, first lead screw (22) outer wall and first movable plate (24) threaded connection, just first lead screw (22) one end is passed through the bearing and is connected with another first bracing piece (23), first movable plate (24) one end and first slide bar (25) sliding connection, first slide bar (25) both ends fixed mounting has second bracing piece (26), first movable plate (24) top symmetry is equipped with flexible clamping unit (27).

4. The preparation method of the high thermal conductivity copper-clad plate according to claim 3, wherein: the telescopic clamping unit (27) comprises a first connecting plate (271), a second motor (272) is fixedly mounted on one side of the first connecting plate (271), the output end of the second motor (272) is connected with a first electric telescopic rod (273) through a rotating shaft, one end of the first electric telescopic rod (273) is detachably connected with a clamping plate (274), and a plurality of suckers (275) are arranged on the inner side wall of the clamping plate (274).

5. The preparation method of the high thermal conductivity copper-clad plate according to claim 2, wherein: adjustable unit (3) are placed to liquid of paining includes second electric telescopic handle (31), second electric telescopic handle (31) one end fixed mounting has the liquid of paining and places box (32), it is equipped with reticular plate (33) to paint liquid and place box (32) inboard.

6. The preparation method of the high thermal conductivity copper-clad plate according to claim 2, wherein: scribble unit (4) including third motor (41), third motor (41) output is connected with third electric telescopic handle (42) through the pivot, just third motor (41) and support frame (43) top fixed connection, third electric telescopic handle (42) one end and second connecting rod (44) fixed connection, second connecting rod (44) bottom with scribble round unit (45) and can dismantle and be connected.

7. The preparation method of the high thermal conductivity copper-clad plate according to claim 6, wherein: the smearing wheel unit (45) comprises a sliding support frame (451), a fourth electric telescopic rod (452) is arranged on the inner side wall of the sliding support frame (451), one end of the fourth electric telescopic rod (452) is connected with a first sliding block (453), mounting blocks (454) are symmetrically arranged at the bottom end of the first sliding block (453), and the mounting blocks (454) are rotatably connected with the smearing wheel (455) through rotating shafts.

Technical Field

The invention relates to the technical field of copper-clad plate processing, in particular to a preparation method of a high-thermal-conductivity copper-clad plate.

Background

The copper-clad plate is a basic material in the electronic industry and is mainly used for processing and manufacturing printed circuit boards, along with the development of science and technology, the application scenes of the copper-clad plate are wider and wider, the copper-clad plate needs to have different characteristics aiming at different application scenes, and the heat conduction height is an important standard for measuring the quality of the copper-clad plate.

However, when heat-conducting glue is smeared in the existing copper-clad plate preparation process, the smearing is not smooth.

Disclosure of Invention

The invention aims to provide a preparation method of a high-thermal-conductivity copper-clad plate, which aims to solve the problem that the coating is not smooth when heat-conducting glue is coated in the existing preparation process of the copper-clad plate.

In order to achieve the purpose, the invention provides the following technical scheme: a preparation method of a high-thermal-conductivity copper-clad plate comprises the following steps:

cutting the reinforcing material plate;

polishing the copper-attached surface of the reinforced material plate, and then coating heat-conducting glue on the copper-attached surface of the reinforced material plate by using a coating device;

and (3) attaching the copper-attached surface of the reinforced material plate to one surface of the copper foil, and performing hot pressing on the reinforced material plate by using a hot press to obtain the high-thermal-conductivity copper-clad plate.

Preferably, paint the device and include first backup pad, first backup pad top surface middle part fixed mounting has the copper-clad plate to press from both sides tight conveying unit, the copper-clad plate presss from both sides tight conveying unit one end middle part and is equipped with the adjustable liquid unit of placing of paining, first backup pad top surface one end fixed mounting paints the unit.

Preferably, the copper-clad plate clamping and transporting unit comprises a first motor, the output end of the first motor is connected with a first screw rod, the first motor is fixedly connected with one side of a first support rod, the outer wall of the first screw rod is in threaded connection with a first movable plate, one end of the first screw rod is connected with another first support rod through a bearing, one end of the first movable plate is in sliding connection with a first sliding rod, second support rods are fixedly mounted at two ends of the first sliding rod, and telescopic clamping units are symmetrically arranged at the top end of the first movable plate.

Preferably, the telescopic clamping unit comprises a first connecting plate, a second motor is fixedly mounted on one side of the first connecting plate, the output end of the second motor is connected with a first electric telescopic rod through a rotating shaft, one end of the first electric telescopic rod is detachably connected with the clamping plate, and a plurality of suckers are arranged on the inner side wall of the clamping plate.

Preferably, the adjustable smearing liquid placing unit comprises a second electric telescopic rod, a smearing liquid placing box is fixedly mounted at one end of the second electric telescopic rod, and a reticular plate is arranged on the inner side of the smearing liquid placing box.

Preferably, the smearing unit comprises a third motor, the output end of the third motor is connected with a third electric telescopic rod through a rotating shaft, the third motor is fixedly connected with the top end of the support frame, one end of the third electric telescopic rod is fixedly connected with a second connecting rod, and the bottom end of the second connecting rod is detachably connected with the smearing wheel unit.

Preferably, paint the wheel unit and include the sliding support frame, the sliding support frame inside wall is equipped with fourth electric telescopic handle, fourth electric telescopic handle one end and first sliding block, first sliding block bottom symmetry is equipped with the installation piece, the installation piece rotates through the pivot with paint the wheel and be connected.

Compared with the prior art, the invention has the beneficial effects that:

through paining in the device copper-clad plate clamp tight transport unit drive reinforcing material board and remove to paint the unit bottom, paint wheel and reinforcing material board contact through the drive of third electric telescopic handle in paining the unit, paint the wheel through the drive of fourth electric telescopic handle and roll and paint, paint with current brush of smearing and compare, reduce and paint a surface unevenness to make copper-clad plate preparation process when paining the heat-conducting glue, paint more level and smooth, and then make the heat-conducting glue laminate with the copper foil more, the heat conduction effect is better.

Drawings

FIG. 1 is a schematic view of the overall structure of the coating device of the present invention;

FIG. 2 is a schematic structural view of a copper-clad plate clamping and transporting unit of the invention;

FIG. 3 is a schematic structural view of the telescopic clamping unit of the present invention;

FIG. 4 is a schematic structural diagram of an adjustable coating solution placement unit according to the present invention;

FIG. 5 is a schematic structural diagram of the applying unit of the present invention;

fig. 6 is a schematic structural diagram of the smearing wheel unit of the invention.

In the figure: 1. the first supporting plate, 2, the copper-clad plate clamping and transporting unit, 21, a first motor, 22, a first screw rod, 23, a first supporting rod, 24, a first moving plate, 25, a first sliding rod, 26, a second supporting rod, 27, a telescopic clamping unit, 271, a first connecting plate, 272, a second motor, 273, a first electric telescopic rod, 274, a clamping plate, 275, a sucker, 3, an adjustable smearing liquid placing unit, 31, a second electric telescopic rod, 32, a smearing liquid placing box, 33, a reticular plate, 4, a smearing unit, 41, a third motor, 42, a third electric telescopic rod, 43, a supporting frame, 44, a second connecting rod, 45, a smearing wheel unit, 451, a sliding supporting frame, 452, a fourth electric telescopic rod, 453, a first sliding block, 454, an installation block, 455 and a smearing wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In an embodiment, referring to fig. 1 to 6, the present invention provides a technical solution: a preparation method of a high-thermal-conductivity copper-clad plate is characterized by comprising the following steps: the method comprises the following steps:

cutting the reinforcing material plate;

polishing the copper-attached surface of the reinforced material plate, and then coating heat-conducting glue on the copper-attached surface of the reinforced material plate by using a coating device;

and (3) attaching the copper-attached surface of the reinforced material plate to one surface of the copper foil, and performing hot pressing on the reinforced material plate by using a hot press to obtain the high-thermal-conductivity copper-clad plate.

In this embodiment, paint the heat-conducting glue level and smooth on reinforcing material board through paining the device for reinforcing material board spreading surface and copper foil laminate more, carry out the hot pressing back through the hot press, then can not be because reinforcing material board spreading surface is not smooth, make heat-conducting glue and copper foil contact inadequately, and cause the heat conduction effect not good.

It should be noted that the specific copper-clad plate preparation method is not limited, and the smearing device used in the method can be used for achieving the purpose of enhancing the smoothness of the gluing surface of the material plate, so that the heat conduction effect of the copper-clad plate is better.

In an embodiment, referring to fig. 1, the smearing device includes a first supporting plate 1, a copper-clad plate clamping and transporting unit 2 is fixedly mounted in the middle of the top surface of the first supporting plate 1, an adjustable smearing liquid placing unit 3 is arranged in the middle of one end of the copper-clad plate clamping and transporting unit 2, and a smearing unit 4 is fixedly mounted at one end of the top surface of the first supporting plate 1.

In an embodiment, referring to fig. 2, the copper-clad plate clamping and transporting unit 2 includes a first motor 21, an output end of the first motor 21 is connected to a first lead screw 22, the first motor 21 is fixedly connected to one side of a first supporting rod 23, an outer wall of the first lead screw 22 is in threaded connection with a first moving plate 24, one end of the first lead screw 22 is connected to another first supporting rod 23 through a bearing, one end of the first moving plate 24 is slidably connected to a first sliding rod 25, second supporting rods 26 are fixedly mounted at two ends of the first sliding rod 25, and telescopic clamping units 27 are symmetrically arranged at a top end of the first moving plate 24.

In this embodiment, the copper-clad plate presss from both sides tight conveying unit 2 and is used for carrying out the transportation of reinforcing material board, makes things convenient for the reinforcing material board to paint in batches, drives first lead screw 22 through first motor 21 and rotates, drives the flexible clamping unit 27 that accompanies the reinforcing material board through first lead screw 22 and removes to paint wheel 45 bottom.

In an embodiment, referring to fig. 3, the telescopic clamping unit 27 includes a first connecting plate 271, a second motor 272 is fixedly installed at one side of the first connecting plate 271, an output end of the second motor 272 is connected to a first electric telescopic rod 273 through a rotating shaft, one end of the first electric telescopic rod 273 is detachably connected to a clamping plate 274, and a plurality of suction cups 275 are disposed on an inner side wall of the clamping plate 274.

In this embodiment, flexible clamping unit 27 is used for pressing from both sides the reinforcing material board tightly, and convenient transportation and painting drive through first electric telescopic handle 273 and press from both sides tight board 274 and remove for press from both sides tight reinforcing material board, paint the completion back at reinforcing material board one side simultaneously, drive reinforcing material board through second motor 272 and rotate and carry out reinforcing material board another side and paint, this operation can be according to actual selective use.

It should be noted that the inner side wall of the clamping plate 274 is provided with a plurality of suckers 275 for preventing the reinforcing material plate from shaking during smearing, and when the two clamping plates 274 clamp the reinforcing material plate, a limiting frame is formed, so that the reinforcing material plate is clamped more stably and simultaneously plays a role in protecting the reinforcing material plate.

In an embodiment, referring to fig. 4, the adjustable smearing liquid placing unit 3 includes a second electric telescopic rod 31, a smearing liquid placing box 32 is fixedly installed at one end of the second electric telescopic rod 31, and a mesh plate 33 is disposed inside the smearing liquid placing box 32.

In this embodiment, adjustable liquid of paining is placed unit 3 and is used for placing the thermal conductive adhesive solution, and paints the liquid and place the inboard bottom of box 32 and be provided with the heater, places box 32 through second electric telescopic handle 31 drive to paint the liquid and shift up for paint wheel 45 and the contact of thermal conductive adhesive solution.

It should be noted that the mesh plate 33 is used to assist the applying wheel 45 to roll on the heat-conducting glue solution, so that the applying wheel 45 is fully contacted with the heat-conducting glue solution.

In an embodiment, referring to fig. 5, the smearing unit 4 includes a third motor 41, an output end of the third motor 41 is connected to a third electric telescopic rod 42 through a rotating shaft, the third motor 41 is fixedly connected to a top end of a supporting frame 43, one end of the third electric telescopic rod 42 is fixedly connected to a second connecting rod 44, and a bottom end of the second connecting rod 44 is detachably connected to a smearing wheel unit 45.

In this embodiment, be used for adjusting smearing wheel unit 45 to smear the wheel and keep better smearing the distance with the reinforcing material board, reach better smearing the effect, drive through third electric telescopic handle 42 and smear wheel unit 45 and remove, make and smear wheel 455 and reinforcing material board contact.

It should be noted that the third motor 41 drives the smearing wheel unit 45 to operate, and the third motor can be selectively used according to actual production conditions, and the smearing direction of the smearing wheel 455 is adjusted by the third motor.

In an embodiment, referring to fig. 6, the smearing wheel unit 45 includes a sliding support frame 451, a fourth electric telescopic rod 452 is disposed on an inner side wall of the sliding support frame 451, one end of the fourth electric telescopic rod 452 is connected to a first sliding block 453, a mounting block 454 is symmetrically disposed at a bottom end of the first sliding block 453, and the mounting block 454 is rotatably connected to the smearing wheel 455 through a rotating shaft.

In this embodiment, paint wheel unit 45 and be used for scribbling the reinforcing material board, drive first slider 453 through fourth electric telescopic handle 452 and remove, drive through first slider 453 and paint wheel 455 and rotate to paint the reinforcing material board.

The sliding support frame 451 serves as a sliding rail for the first slider 453 to assist the sliding movement of the application wheel 455.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.