阅读说明：本技术 一种电路板用感光干膜涂布生产线及其工艺流程 (Photosensitive dry film coating production line for circuit board and technological process thereof ) 是由 韩立强 郭水清 韩佳 于 2021-01-11 设计创作，主要内容包括：本发明公开了一种电路板用感光干膜涂布生产线及其工艺流程,包括以下设备：用于收放电路板基材并能够对收放张力进行控制的基材卷料放卷单元及张力控制设备；用于对基材进行涂胶的精密涂胶单元；用于对基材表面进行烘干的高精度烘干设备；用于对基材表面成膜进行检测的成膜精度检测设备；用于对基材表面进行贴膜的高精度贴合单元及张力控制设备；用于收纳成品并能够对收放张力进行控制的成品收卷单元及张力控制设备；用于控制整个生产线工作的自动化控制设备；用于收放保护涂层的保护膜并能够对收放张力进行控制的保护膜放卷单元及张力控制设备。本发明提高工作效率。(The invention discloses a photosensitive dry film coating production line for a circuit board and a process flow thereof, wherein the photosensitive dry film coating production line comprises the following equipment: the base material coil unwinding unit is used for unwinding and winding the base material of the circuit board and can control the winding and unwinding tension; the precise gluing unit is used for gluing the base material; the high-precision drying equipment is used for drying the surface of the base material; a film formation precision detection device for detecting film formation on the surface of the base material; the high-precision laminating unit is used for laminating a film on the surface of the base material; the finished product winding unit is used for storing finished products and can control the winding and unwinding tension; the automatic control equipment is used for controlling the work of the whole production line; the protective film unwinding unit is used for unwinding and unwinding the protective film of the protective coating and controlling the unwinding and unwinding tension. The invention improves the working efficiency.)

1. The utility model provides a photosensitive dry film coating production line for circuit board which characterized in that includes following equipment:

the base material coil unwinding unit is used for unwinding and winding the base material of the circuit board and can control the winding and unwinding tension, and the tension control device (1);

a precise glue application unit (2) for applying glue to the substrate;

a high-precision drying device (3) for drying the surface of the base material;

a film formation precision detection device (6) for detecting film formation on the surface of the base material;

a high-precision laminating unit and a tension control device (5) for laminating a film on the surface of the base material;

a finished product winding unit and tension control equipment (4) which are used for storing finished products and can control the winding and unwinding tension;

an automatic control device (7) for controlling the operation of the whole production line;

a protective film unreeling unit and a tension control device (8) which are used for reeling and unreeling the protective film of the protective coating and can control reeling and unreeling tension;

wherein the side that substrate coil stock unreeled unit and tension control device (1) be provided with accurate rubber coating unit (2), high accuracy laminating unit and tension control device (5) be located the side of finished product rolling unit and tension control device (4), high accuracy drying equipment (3) be located between high accuracy laminating unit and tension control device (5) and accurate rubber coating unit (2) constitute the bridge of being connected accurate rubber coating unit (2) and high accuracy laminating unit and tension control device (5), protection film unreels the side that unit and tension control device (8) are located high accuracy laminating unit and tension control device (5).

2. The photosensitive dry film coating line for the circuit board according to claim 1, wherein: the base material coil unreeling unit and the tension control device (1) comprise a base material coil tension unit (9) and an unreeling traction and tension unit (10) which are sequentially connected, wherein the unreeling traction and tension unit (10) comprises an unreeling traction unit (11) and an unreeling tension unit (12).

3. The photosensitive dry film coating line for the circuit board according to claim 2, characterized in that: the precise gluing unit (2) comprises a gluing conveying device (13) and a quantitative and constant-pressure glue supply system (14) positioned on the gluing conveying device (13), wherein the quantitative and constant-pressure glue supply system (14) comprises a glue supply device (15), a filtering device (16) arranged in the glue supply device (15) and a quantitative and constant-pressure control unit (17) for controlling the quantitative and constant pressure of the glue supply device (15).

4. The photosensitive dry film coating line for the circuit board according to claim 3, wherein: the high-precision drying equipment (3) comprises more than one drying area (18) which is used for carrying out area temperature control.

5. A technological process for coating production of a photosensitive dry film for a circuit board, which comprises the step of adopting the photosensitive dry film coating production line for the circuit board as claimed in claim 4, and is characterized by comprising the following steps:

s1, firstly, mounting a photosensitive base material coil for preparing a circuit board on a base material coil unwinding unit and a tension control device (1) through manpower or a carrying fork handle; a protective film coil stock for protecting the coating is arranged on the protective film unwinding unit and the tension control device (8);

s2, starting a control power supply on the automatic control equipment (7), and starting the machine to run under the action of the automatic control equipment (7); the base material coil stock and the protective film are respectively uncoiled from the base material coil stock uncoiling unit, the protective film uncoiling unit and the tension control device (8) through corresponding tension control;

s3, the base material output from the base material coiling tension unit (9) enters the unreeling traction unit (11) under the control of the high-precision tension control system, the unreeling traction unit (11) stably conveys the base material to the precision gluing unit (2) through the unreeling tension unit (12), and the surface tension of the base material is stable, flat and free of folds when the base material enters the gluing unit for gluing;

s4, after the substrate enters the precise gluing unit (2), the substrate and the gluing device are precisely adjusted through the precise gluing unit (2), and the thickness and the uniformity of gluing on the substrate are ensured to meet requirements; simultaneously, the glue is subjected to bubble-free, quantitative and constant pressure control and glue filtration control through a quantitative and constant pressure glue supply system, and then the coating liquid glue with high cleanliness and meeting the process requirements is uninterruptedly supplied to a glue supply device (15);

s5, drying the glued base material in high-precision drying equipment (3), controlling the temperature of the drying unit in a partition mode, and accurately controlling the temperatures of the drying ovens in different temperature areas through an automatic temperature control system to meet the requirements of adjustment of different process temperatures;

s6, the dried base material with the glue comes out of the drying unit and enters film forming precision detection equipment (6) to carry out on-line monitoring on the glue coating quality; so as to adjust the technological parameters and working conditions in time and ensure the product quality;

the dried substrate with the adhesive enters a high-precision laminating unit and a tension control device (5) and is laminated with the protective film output by a protective film unreeling unit and a tension control device (8); and the composite material attached with the protective film stably enters a finished product winding unit and tension control equipment (4) for winding and winding under the action of a high-precision tension control system, so that the composite material is wound into a finished coiled material.

Technical Field

The invention relates to the technical field of production and manufacturing of special adhesive products such as optical protection adhesive, etching adhesive and the like required in batch molding of integrated circuit boards and flexible circuit boards, in particular to a photosensitive dry film coating production line for circuit boards and a process flow thereof.

Background

With the continuous development of science and technology, more and more components in electronic equipment are all constituted by integrated circuit boards or flexible circuit boards, the circuit boards are important electronic components, through the development of many years, the circuit boards are developed from single layers to double-sided, multi-layer and flexible, and are continuously developed towards the directions of high precision, high integration and high reliability, so that the process innovation of the whole production flow is brought, and the process innovation is quite important, but the following problems are found in the process of special glue products such as optical protection glue, etching glue and the like required when the integrated circuit boards and the flexible circuit boards are molded in batches:

1. the yield of the existing production line is low;

2. the coating precision is poor, and the technological requirements of circuit board production cannot be met;

3. the production efficiency is low, and the production cost is too high;

4. the manufacturing precision is low, and the requirement of the width of circuit board production cannot be met;

5. the existing production line adopts scraper coating, the requirements of coating precision cannot be met due to the limitation of manufacturing precision and control precision, the conventional drying system has low efficiency, the production line speed of the whole production line cannot be improved, a comma scraper adopts open glue supply, the glue characteristic is unstable, and the stability of the coating precision is further influenced;

in view of the foregoing, there is a need for further improvements in the production of existing integrated circuits.

Disclosure of Invention

The invention aims to provide a photosensitive dry film coating production line for a circuit board, which aims to solve the problem that the yield of the production line in the prior art is low; the coating precision is poor, and the technological requirements of circuit board production cannot be met; the production efficiency is low, and the production cost is too high; low manufacturing precision and can not meet the width requirement of circuit board production.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a photosensitive dry film coating production line for circuit board, includes following equipment:

the base material coil unwinding unit is used for unwinding and winding the base material of the circuit board and can control the winding and unwinding tension;

the precise gluing unit is used for gluing the base material;

the high-precision drying equipment is used for drying the surface of the base material;

a film formation precision detection device for detecting film formation on the surface of the base material;

the high-precision laminating unit is used for laminating a film on the surface of the base material;

the finished product winding unit is used for storing finished products and can control the winding and unwinding tension;

the automatic control equipment is used for controlling the work of the whole production line;

the protective film unwinding unit is used for unwinding and winding a protective film of the protective coating and can control the winding and unwinding tension;

the side that substrate coil stock unreeled unit and tension controlgear be provided with accurate rubber coating unit, high accuracy laminating unit and tension controlgear be located finished product rolling unit and tension controlgear's side, high accuracy drying equipment be located between high accuracy laminating unit and tension controlgear and the accurate rubber coating unit constitute the bridge of being connected accurate rubber coating unit and high accuracy laminating unit and tension controlgear, the protection film unreels the side that unit and tension controlgear are located high accuracy laminating unit and tension controlgear.

Further, the substrate coil material unreeling unit and the tension control device comprise a substrate coil material tension unit and an unreeling traction and tension unit which are sequentially connected, wherein the unreeling traction and tension unit comprises an unreeling traction unit and an unreeling tension unit.

Furthermore, the precise gluing unit comprises gluing conveying equipment and a quantitative and constant-pressure glue supply system positioned on the gluing conveying equipment, and the quantitative and constant-pressure glue supply system comprises glue supply equipment, a filtering device arranged in the glue supply equipment and a quantitative and constant-pressure control unit for controlling the quantitative and constant pressure of the glue supply equipment.

Furthermore, the high-precision drying equipment comprises more than one drying area for carrying out regional temperature control.

The invention also discloses a process flow for coating and producing the photosensitive dry film for the circuit board, which specifically comprises the following steps:

s1, firstly, mounting a photosensitive substrate coil for preparing the circuit board on a substrate coil unwinding unit and tension control equipment through manpower or a carrying fork handle; and (3) mounting a protective film roll material for protecting the coating on the protective film unwinding unit, and threading the base material and the protective film according to a material feeding route diagram.

S2, starting the control power supply on the automatic control equipment, and starting the machine to run under the action of the automatic control equipment; the substrate coil stock and the protective film are respectively uncoiled from the substrate coil stock uncoiling unit, the protective film uncoiling unit and the tension control device through corresponding tension control;

s3, the base material output from the base material coiling tension unit enters an unreeling traction unit under the control of a high-precision tension control system, the unreeling traction unit stably conveys the base material to a precision gluing unit through the unreeling tension unit, and the base material is guaranteed to have stable surface tension and to be flat and without folds when entering the gluing unit for gluing;

s4, after the substrate enters the precise gluing unit, the substrate and the gluing device are precisely adjusted through the precise gluing unit, and the thickness and the uniformity of gluing on the substrate are ensured to meet the requirements; simultaneously, the glue is subjected to bubble-free, quantitative and constant-pressure control and glue filtration control through a quantitative and constant-pressure glue supply system, and then the coating liquid glue with high cleanliness and meeting the process requirements is uninterruptedly supplied to a glue supply device;

s5, drying the glued base material in high-precision drying equipment, controlling the temperature of the drying unit in a partition mode, and accurately controlling the temperatures of drying ovens in different temperature areas through an automatic temperature control system to meet the adjustment of different process temperatures;

s6, the dried substrate with the adhesive comes out of the drying unit and enters film forming precision detection equipment to perform online monitoring on the adhesive coating quality; so as to adjust the technological parameters and working conditions in time and ensure the product quality; the dried substrate with the adhesive enters a high-precision laminating unit and a tension control device and is laminated with the protective film output by a protective film unreeling unit and the tension control device, so that the adhesive coating layer is prevented from being polluted and scratched, and the coating quality is ensured; and (4) the composite material with the protective film is stably fed into a finished product winding unit and tension control equipment to be wound and wound under the action of a high-precision tension control system, so that the composite material is wound into a finished coiled material.

The invention has the beneficial effects that: the closed coating is adopted to increase the drying technology, the high-precision laminating technology, the tension control system and the finished product winding unit, the coating precision can be effectively improved to +/-1.5 mu, the coating precision stability is +/-0.5 mu, the production efficiency is improved by 4 times, the production yield reaches more than 98%, the production energy consumption is reduced by 50%, the labor cost is reduced by 50%, therefore, the whole updating and reforming can be carried out, the efficiency is further improved, the requirements of higher precision, higher integration level, more reliable service performance and the like are met, the production cost is further reduced, and the further automatic control of production and manufacturing is realized to research, develop and manufacture.

Drawings

FIG. 1 is a schematic view of a photosensitive dry film coating line for a circuit board in this embodiment 1;

FIG. 2 is a schematic structural view of a precision glue application unit;

FIG. 3 is a schematic view of the unwinding pulling and tension unit;

FIG. 4 is a schematic structural diagram of a high-precision drying apparatus;

fig. 5 is a schematic structural view of the high-precision bonding unit and the tension control apparatus.

Fig. 6 is a schematic structural view of the protective film unwinding unit and the tension control apparatus;

fig. 7 is a schematic structural diagram of a finished product winding unit and a tension control device.

In the figure: a substrate coil unwinding unit and a tension control device 1; a precise gluing unit 2; a high precision drying device 3; a film formation precision detection device 6; a high-precision bonding unit and a tension control device 5; a finished product winding unit and a tension control device 4; an automation control device 7; a protective film unwinding unit and tension control equipment 8; a substrate roll tension unit 9; an unwinding traction and tension unit 10; an unwinding traction unit 11; an unwinding tension unit 12; a gluing conveying device 13; a quantitative and constant pressure glue supply system 14; a glue supply device 15; a filter device 16; a quantitative constant pressure control unit 17; and a drying area 18.

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.

Example 1:

referring to fig. 1 to 7, the photosensitive dry film coating line for a circuit board disclosed in this embodiment includes the following devices:

a base material coil unwinding unit and tension control equipment 1 which is used for winding and unwinding the base material of the circuit board and can control the winding and unwinding tension;

a precise glue coating unit 2 for coating the base material with glue;

a high-precision drying device 3 for drying the surface of the base material;

a film formation precision detection device 6 for detecting film formation on the surface of the base material;

a high-precision laminating unit and tension control equipment 5 for laminating the surface of the base material;

a finished product winding unit and tension control equipment 4 which are used for storing finished products and can control the winding and unwinding tension;

an automatic control device 7 for controlling the operation of the whole production line;

a protective film unwinding unit and tension control equipment 8 for unwinding and winding the protective film of the protective coating and controlling the winding and unwinding tension;

wherein the side that substrate coil stock unreeled unit and tension control device 1 be provided with accurate rubber coating unit 2, high accuracy laminating unit and tension control device 5 be located finished product rolling unit and tension control device 4's side, high accuracy drying equipment 3 be located between high accuracy laminating unit and tension control device 5 and the accurate rubber coating unit 2 constitute the bridge of being connected accurate rubber coating unit 2 and high accuracy laminating unit and tension control device 5, protection film unreels the side that unit and tension control device 8 are located high accuracy laminating unit and tension control device 5.

Further, the substrate coil unwinding unit and tension control device 1 comprises a substrate coil tension unit 9 and an unwinding traction and tension unit 10 which are sequentially connected, wherein the unwinding traction and tension unit 10 comprises an unwinding traction unit 11 and an unwinding tension unit 12.

Further, the precise glue coating unit 2 comprises a glue coating conveying device 13 and a quantitative and constant-pressure glue supply system 14 located on the glue coating conveying device 13, wherein the quantitative and constant-pressure glue supply system 14 comprises a glue supply device 15, a filter device 16 arranged in the glue supply device 15, and a quantitative and constant-pressure control unit 17 for controlling the quantitative and constant pressure of the glue supply device 15.

Further, the high-precision drying device 3 comprises more than one drying area 18 which is used for carrying out area temperature control.

The embodiment also discloses a process flow for coating and producing the photosensitive dry film for the circuit board, which specifically comprises the following steps:

s1, firstly, mounting a photosensitive substrate coil for preparing a circuit board on a substrate coil unwinding unit and a tension control device 1 through manpower or a carrying fork handle; mounting a protective film roll material for protecting a coating on a protective film unwinding unit and tension control equipment, and then threading a base material and a protective film according to a material feeding route diagram;

s2, starting the control power supply on the automatic control equipment 7, and starting the machine to run under the action of the automatic control equipment 7; the substrate coil stock and the protective film are respectively uncoiled from the substrate coil stock uncoiling unit, the protective film uncoiling unit and the tension control device 8 through corresponding tension control;

s3, the base material output from the base material coiling tension unit 9 enters the unreeling traction unit 11 under the control of the high-precision tension control system, the unreeling traction unit 11 stably conveys the base material to the precision gluing unit 2 through the unreeling tension unit 12, and the surface tension of the base material is stable, flat and without folds when the base material enters the gluing unit for gluing;

s4, after the substrate enters the precise gluing unit 2, the substrate and the gluing device are precisely adjusted through the precise gluing unit 2, and the thickness and the uniformity of gluing on the substrate are ensured to meet requirements; simultaneously, the glue is subjected to bubble-free, quantitative and constant pressure control and glue filtration control through a quantitative and constant pressure glue supply system, and then the coating glue with high cleanliness and meeting the process requirements is uninterruptedly supplied to the glue supply equipment 15;

s5, drying the glued base material in high-precision drying equipment 3, controlling the temperature of the drying unit in a partition mode, and accurately controlling the temperatures of the drying ovens in different temperature areas through an automatic temperature control system to meet the requirements of adjustment of different process temperatures;

s6, the dried substrate with the adhesive comes out of the drying unit and enters the film forming precision detection equipment 6, and the adhesive coating quality is monitored on line; so as to adjust the technological parameters and working conditions in time and ensure the product quality; the dried substrate with the adhesive enters a high-precision laminating unit and a tension control device 5 and is laminated with the protective film output by a protective film unreeling unit and a tension control device 8, so that the adhesive coating layer is prevented from being polluted and scratched, and the coating quality is ensured; and (4) the composite material with the protective film is stably fed into a finished product winding unit and tension control equipment to be wound and wound under the action of a high-precision tension control system, so that the composite material is wound into a finished coiled material.

When the device works, firstly, a photosensitive substrate coil for preparing a circuit board is arranged on a substrate coil unreeling unit and a tension control device 1 through manpower or a carrying fork truck; and installing the protective film coil stock for protecting the coating on the protective film unwinding unit. The base material and the protective film are well penetrated according to a material conveying route diagram; then starting up a control power supply on the automatic control equipment 7, and starting the machine to run under the action of the automatic control equipment 7; the substrate coil stock and the protective film are respectively uncoiled from the substrate coil stock uncoiling unit, the protective film uncoiling unit and the tension control device 8 through corresponding tension control; at the moment, the base material output from the base material coil tension unit 9 enters the unreeling traction unit 11 under the control of a high-precision tension control system, and the unreeling traction unit 11 stably conveys the base material to the precision gluing unit 2 through the unreeling tension unit 12, so that the surface tension of the base material is stable, smooth and without folds when the base material enters the gluing unit for gluing; after entering the precise gluing unit 2, the substrate and the gluing device are precisely adjusted through the precise gluing unit 2, so that the thickness and uniformity of gluing on the substrate can meet requirements; simultaneously, the glue is subjected to bubble-free, quantitative and constant pressure control and glue filtration control through a quantitative and constant pressure glue supply system, and then the coating glue with high cleanliness and meeting the process requirements is uninterruptedly supplied to the glue supply equipment 15; the glued base material enters a high-precision drying device 3 for drying, the drying unit carries out zone temperature control, and the temperatures of drying ovens in different temperature zones are accurately controlled through an automatic temperature control system so as to meet the adjustment of different process temperatures; the dried substrate with the glue comes out of the drying unit and enters a film forming precision detection device 6, and the glue coating quality is monitored on line; so as to adjust the technological parameters and working conditions in time and ensure the product quality; the dried substrate with the adhesive enters a high-precision laminating unit and a tension control device 5 and is laminated with the protective film output by a protective film unreeling unit and a tension control device 8, so that the adhesive coating layer is prevented from being polluted and scratched, and the coating quality is ensured; the composite material with the protective film attached stably enters the finished product rolling unit to be rolled and rolled under the action of the high-precision tension control system, so that the composite material is rolled into a finished coiled material product, the production line adopts a closed coating and drying increasing technology, a high-precision attaching technology, a tension control system and a finished product rolling unit, the coating precision can be effectively improved to +/-1.5 mu, the stability of the coating precision is +/-0.5 mu, the production efficiency is improved by 4 times, the production yield reaches more than 98%, the production energy consumption is reduced by 50%, and the labor cost is reduced by 50%.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.