A high-efficiency film making and laminating integrated machine and a film laminating method

Abstract

The application discloses a high-efficiency film manufacturing and laminating integrated machine and a film laminating method. The film manufacturing and laminating integrated machine comprises at least one film manufacturing and laminating unit. The film manufacturing and laminating unit comprises a heating box, a carrier film unwinding unit arranged in the heating box, a carrier film conveying roller module and a coating module, a film pressing roller for pressing a photosensitive film on a plate, and a solvent supply module for supplying a photosensitive solvent to the coating module. A heating channel is arranged in the heating box, and the carrier film conveying roller module is arranged along the heating channel. The film manufacturing and laminating integrated machine integrates film manufacturing and film laminating together, efficiently completes the film laminating operation on the surface of a hard plate, greatly improves the efficiency, and reduces the manufacturing cost.

Description

[0001] The application belongs to the technical field of film covering, and particularly relates to a high-efficiency film making and covering integrated machine and a film covering method.

[0002] In the industries of PCB (hard printed circuit board), FPCB (flexible printed circuit board), mask coating, glass display yellow light process, semiconductor carrier plate manufacturing, metal etching industry, etc., there are film covering processes. For example, in the process of manufacturing inner layer board material of a circuit board, dry film pasting, exposure, development, etching and leg film steps are needed. The dry film pasting needs to use a film pasting machine (or called a film pressing machine), such as the film pressing machine disclosed in the prior art with the patent number CN201220206337.4. The dry film is generally made into a roll shape on a dry film machine, and then is put into a circuit board production line to be pasted onto the surface of the circuit board through the film pressing machine.

[0003] The dry film generally includes a PET carrier film, a photosensitive agent coating film solidified and formed on the PET carrier film, and a PE protective film covering the surface of the solidified photosensitive agent coating film. The dry film is made by a horizontal production line to coat and dry the photosensitive emulsion on the PET, cover the PE protective film on the dry film surface, and wind into a dry film roll. According to different production processes, the dry film is cut into different width rolls, packaged and delivered.

[0004] The dry film roll is pasted in the film pasting process by a separate film pressing machine through winding, tearing the PE protective film, softening the photosensitive emulsion by the high-temperature roller of the equipment, uniformly pasting the photosensitive emulsion on the surface of the circuit board semi-finished product (such as PCB, FPC, etc.), and then uniformly pasting the dry film and the PET film on the board surface by the heating roller at a constant speed. For example, the integrated film pasting machine disclosed in the prior art with the patent number CN200520068116.5. Before the dry film is completely pasted on the board surface, the dry film is pre-cut according to the size of the board by a cutting knife or an automatic cutting device of the equipment. After the complete pasting, the next board to be processed is sequentially pasted by the pre-pasting method, and the operation process flow of the cycle of film pasting, film cutting and pre-pasting is performed. After the film pasting of the board is completed, the next manufacturing process of pattern transfer process (such as exposure process, etc.) is performed.

[0005] In the prior art, the production and film pasting of the photosensitive dry film are separately performed, and the corresponding film making machine and film pasting machine are needed, which has high equipment cost and large equipment space occupation. When pasting the film, a heating device and a humidifying device need to be arranged, the equipment length is relatively long, and the space occupation is large. Moreover, the dry film is separately made into a roll, and a layer of PE protective film needs to be pasted on the surface of the dry film. The PE protective film needs to be torn off when pasting the film, which causes waste. Moreover, in the process of manufacturing the circuit board, the PET carrier film carrying the photosensitive dry film also needs to be removed, which cannot be recycled and causes waste. ​​

[0006] Therefore, it is necessary to provide a new efficient film making and laminating integrated machine and a laminating method to solve the above problems. SUMMARY

[0007] The main purpose of the present application is to provide an efficient film making and laminating integrated machine, which integrates film making and laminating together, efficiently completes the laminating operation of the surface of the hard board, greatly improves the efficiency and reduces the process cost.

[0008] The above-mentioned purpose is achieved by the following technical scheme: an efficient film making and laminating integrated machine, which comprises at least one film making and laminating unit, the film making and laminating unit comprises a heating box, a carrier film unwinding unit arranged in the heating box, a carrier film conveying roller module and a coating module, a film pressing roller for pressing the photosensitive film on the plate, and a solvent supply module for supplying the photosensitive solvent to the coating module; a heating channel is arranged in the heating box, and the carrier film conveying roller module is arranged along the heating channel.

[0009] Further, the film making and laminating unit is provided with two film making and laminating units, and the two film making and laminating units are arranged oppositely above and below, and the plate is conveyed through the conveying device between the two film making and laminating units.

[0010] Further, an output port is arranged on the heating box, the film pressing roller is arranged at the output port, the carrier film conveying roller module conveys the PET carrier film coated with the photosensitive film to the film pressing roller, and the photosensitive film on the PET carrier film is attached to the surface of the plate through the film pressing roller.

[0011] Further, the heating channel comprises a first low-temperature heating section, a high-temperature heating section and a second low-temperature heating section in sequence according to the conveying direction of the carrier film.

[0012] Further, a first containing space and a second containing space are arranged in the heating box, the first containing space and the second containing space are communicated through a first port, and the second containing space and the starting end of the heating channel are communicated through a second port.

[0013] The carrier film unwinding unit is arranged in the first containing space, the coating module is arranged in the second containing space, the PET carrier film released by the carrier film unwinding unit enters the second containing space through the first port, and after a layer of photosensitive film is coated on the PET carrier film by the coating module, the PET carrier film enters the heating channel through the second port.

[0014] Further, the coating module comprises a coating head aligned with the PET carrier film and an air knife; the solvent supply module comprises a solvent tank, the solvent tank and the coating head are communicated through a pipeline, and a metering pump is arranged on the pipeline communicated between the solvent tank and the coating head.

[0015] Further, the film pressing roller adopts an electromagnetic constant temperature film pressing roller.

[0016] Further, the heating box is provided with a PET recycling roller.

[0017] Further, the cutting module is arranged on the plate conveying path and located at the output end of the film manufacturing and laminating unit.

[0018] Another object of the present application is to provide an efficient film laminating method, which comprises the following steps:

[0019] S1) arranging a film manufacturing and laminating unit above or / and below the plate conveying path; the plate is automatically conveyed through the conveying device to pass through the film manufacturing and laminating unit;

[0020] S2) intermittently or continuously coating the photosensitive film on the PET carrier film in the upper film manufacturing and laminating unit or / and the lower film manufacturing unit;

[0021] S3) conveying the PET carrier film carrying the photosensitive film in a heating channel, so that the photosensitive film is in a solidified or semi-solidified state;

[0022] S4) conveying the PET carrier film carrying the photosensitive film to a pair of constant temperature film pressing rollers, and pressing the photosensitive film on the corresponding plate surface through the constant temperature film pressing rollers.

[0023] S5) if the photosensitive film on the PET carrier film is intermittently coated, the PET carrier film is recycled through the PET recycling roller; if the photosensitive film on the PET carrier film is continuously coated, the PET carrier film is cut through the cutting module.

[0024] Compared with the prior art, the present application has the advantages that the photosensitive dry film manufacturing and laminating are integrated together, the photosensitive solvent is coated on the PET carrier film in a relatively closed space to form a photosensitive film, then the PET carrier film carrying the photosensitive film is conveyed in a heating channel to solidify or semi-solidify the photosensitive emulsion, and then directly conveyed to the film pressing roller to directly press the photosensitive film on the plate surface, which greatly improves the process efficiency of film manufacturing and laminating, reduces the production cost, and reduces the equipment space occupation.

[0025] 1) after coating the photosensitive film on the PET carrier film, the film is conveyed through the heating channel to be in a solidified or semi-solidified state, and then directly conveyed to the film pressing roller for film pressing operation, without the need for PE film, which saves the input cost of PE film, reduces the number of process procedures, and reduces the production cost;

[0026] 2) It eliminates the rolling operation, intermediate transportation, and dry film unwinding process in the original dry film production process, greatly reducing the number of process steps, improving film production and coating efficiency, and reducing production costs.

[0027] 3) The coating position of the photosensitive film on the PET carrier film can be flexibly controlled according to the size of the board, realizing intermittent coating, eliminating the need for subsequent slitting of the PET carrier film, and avoiding the waste of photosensitive emulsion caused by the original continuous coating process.

[0028] 4) By achieving intermittent coating, the PET carrier film can be peeled off from the photosensitive film and recycled, reducing production costs;

[0029] 5) With the upper and lower film forming and coating units, film can be applied to both sides of the board at the same time. The upper and lower film forming and coating units are independently controlled and work independently, which can meet the film forming and coating needs of single-sided and double-sided film forming and coating. The equipment has high versatility. [Attached Image Description]

[0030] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0031] The numbers in the diagram represent:

[0032] 100-High-efficiency film making and laminating integrated machine;

[0033] 1-Heating chamber, 11-Heating channel, 111-First low-temperature heating section, 112-High-temperature heating section, 113-Second low-temperature heating section, 12-Outlet, 13-First accommodating space, 14-Second accommodating space, 15-Air inlet, 16-Air outlet; 2-Carrier film unwinding unit; 3-Carrier film conveying roller module; 4-Coating module, 41-Coating head, 42-Air knife; 5-Film pressing roller; 6-Solvent supply module, 61-Solvent tank, 62-Metering pump; 7-PET recycling roller; 8-Slitting module; 9-Conveying device.

Detailed Implementation Methods

[0034] Example:

[0035] Please refer to Figure 1 This embodiment describes a high-efficiency film-forming and coating integrated machine 100, which includes two film-forming and coating units A and B. Film-forming and coating unit A and film-forming and coating unit B are arranged vertically opposite each other. The sheet material is conveyed between film-forming and coating unit A and film-forming and coating unit B through a conveying device 9. The conveying device 9 can be a roller conveying device.

[0036] The film manufacturing and coating unit A comprises a heating box 1, a carrier film unwinding unit 2 arranged in the heating box 1, a carrier film conveying roller module 3 and a coating module 4, a film pressing roller 5 for pressing the photosensitive film on the plate, and a solvent supply module 6 for supplying the photosensitive solvent to the coating module 4.

[0037] The heating box 1 is provided with a heating channel 11, which can be flexibly designed according to the requirements. In the embodiment, the heating channel 11 is arranged around the inner wall of the heating box 1. The carrier film unwinding unit 2 releases the PET carrier film into the heating channel 11 after passing through the coating module 4. The output port 12 is arranged on the heating box 1, and the film pressing roller 4 is arranged at the output port 12. When the PET carrier film passes through the film pressing roller 4, the photosensitive film on the PET carrier film is attached to the surface of the plate by the film pressing roller 4.

[0038] The carrier film conveying roller module 3 is arranged along the heating channel 11 to convey the PET carrier film with the photosensitive film to the output port 12. The heating channel 11 comprises a first low-temperature heating section 111, a high-temperature heating section 112 and a second low-temperature heating section 113 in sequence along the conveying direction of the carrier film. The temperature control of each section in the heating channel 11 can be realized by existing temperature control technology, such as by arranging a separate space for temperature control inside the space, or by adjusting the arrangement density of the heating components to realize high-temperature and low-temperature temperature control. The heating method can be hot air heating, or heating rod / heating sheet heating, or liquid medium circulation heating, etc. The heating channel 11 is mainly used for curing or semi-curing the photosensitive emulsion on the PET carrier film.

[0039] The heating box 1 is provided with a first containing space 13 and a second containing space 14, and the first containing space 13 and the second containing space 14 are communicated through a first through port. The second containing space 14 and the starting end of the heating channel 11 are communicated through a second through port. The carrier film unwinding unit 2 is arranged in the first containing space 13, and the coating module 4 is arranged in the second containing space 14. The PET carrier film released by the carrier film unwinding unit 2 enters the second containing space 14 through the first through port, and then a layer of photosensitive film is coated on the PET carrier film by the coating module 4, and then enters the heating channel 11 through the second through port. By arranging the first containing space 13 and the second containing space 14, on the one hand, the carrier film unwinding unit 2 and the coating module 4 are separated and separated from the heating channel 11, which guarantees the internal environment of the heating channel 11 and reduces the influence of the external environment on the photosensitive film as much as possible, thereby guaranteeing the quality of the photosensitive film.

[0040] In the embodiment, the heating box 1 is an electromagnetic heating box, and the internal heating temperature ranges from 90℃ to 120℃. The heating box 1 is provided with an air inlet 15 and an air outlet 16, and the air inlet 15 is provided with a fan (not shown in the figure). The air inlet 15 is arranged at the first low-temperature heating section 111 of the heating channel 11, and the air outlet 16 is arranged at the second low-temperature heating section 113.

[0041] The coating module 4 includes a coating head 41 and an air knife 42 for aligning the PET carrier film. The solvent supply module 6 includes a solvent tank 61, which is in pipeline communication with the coating head 41, and a metering pump 62 arranged on the pipeline communication between the solvent tank 61 and the coating head 41. The control of the metering pump 62 is started and stopped to control the coating of the photosensitive film on the PET carrier film, so that continuous coating or intermittent coating can be realized to match various sizes of plates without subsequent cutting. The blowing direction of the air knife 42 is upward at a set angle with the PET carrier film.

[0042] The film pressing roller 5 is an electromagnetic constant-temperature film pressing roller.

[0043] In the embodiment, the heating box 1 is further provided with a PET recycling roller 7, which can realize the recycling of the PET carrier film.

[0044] The embodiment further includes a slitting module 8 arranged on the plate conveying path and located at the output end of the film manufacturing and coating unit. When the PET carrier film is not recycled, automatic slitting according to the size of the plate can be realized.

[0045] The film manufacturing and coating unit B has basically the same structure as the film manufacturing and coating unit A, and the difference lies in that the output port 12 of the film manufacturing and coating unit A is arranged at the bottom of the heating box 1, the output port 12 of the film manufacturing and coating unit B is arranged at the top of the heating box 1, and the output ports of the two film manufacturing and coating units are oppositely arranged.

[0046] The conveying path of the conveying device is provided with a sensor for detecting the input of the plate, and the sensor provides an input signal of the plate to provide a start-stop signal for the intermittent coating of the coating head 41 on the PET carrier film.

[0047] The embodiment further provides a high-efficiency film coating method for plates, which includes the following steps:

[0048] S1) arranging a film manufacturing and coating unit above and / or below the plate conveying path; and conveying the plate through the conveying device to pass through the film manufacturing and coating unit;

[0049] S2) In the upper film forming and laminating unit or / and the lower film forming unit, the photosensitive film is attached to the PET carrier film; in this step, the photosensitive film can be intermittently attached to the PET carrier film according to the size of the plate; or the photosensitive film is directly and continuously coated on the PET carrier film; the photosensitive film is pumped by the metering pump 62 to the end of the coating head 41, sprayed on the PET carrier film by the coating head 41, and then uniformly attached to the PET carrier film by the air knife 42;

[0050] S3) The PET carrier film carrying the photosensitive film is conveyed in a heating channel 11, so that the photosensitive film is in a solidified or semi-solidified state; the photosensitive film is in a solidified or semi-solidified state by setting the temperature of the space environment in the heating channel 11, without the need to cover the PE protective film;

[0051] S4) The PET carrier film carrying the photosensitive film is conveyed to a pair of constant temperature film pressing rollers 4, and the photosensitive film is pressed on the surface of the corresponding plate by the constant temperature film pressing rollers.

[0052] If the photosensitive film on the PET carrier film is intermittently coated, the position of the photosensitive film on the PET carrier film corresponds to the position of the plate on the conveying path, and the PET carrier film does not need to be subsequently slitting; the PET carrier film is recycled by the PET recycling roller 7.

[0053] If the photosensitive film on the PET carrier film is continuously coated, the PET carrier film is cut off by the slitting module 8 after the step S4).

[0054] The efficient film forming and laminating integrated machine and the laminating method of the embodiment can be applied to the film laminating process in PCB (hard printed circuit board) manufacturing, FPCB (flexible printed circuit board) manufacturing, mask coating, glass display yellow light process, semiconductor carrier plate manufacturing and metal etching.

[0055] The efficient film forming and laminating integrated machine and the laminating method of the embodiment integrates the photosensitive dry film forming and laminating together, directly coats the photosensitive solvent on the PET carrier film in a relatively closed space to form the photosensitive film, then conveys the PET carrier film carrying the photosensitive film in a heating channel to solidify or semi-solidify the photosensitive emulsion, and then directly conveys to the film pressing roller to directly press the photosensitive film on the surface of the plate by the film pressing roller, greatly improving the process efficiency of film forming and laminating, reducing the manufacturing cost, and reducing the equipment space occupation. Specifically:

[0056] 1) After the photosensitive film is coated on the PET carrier film, it is in a solidified or semi-solidified state after passing through the heating channel, and then directly conveyed to the film pressing roller for film pressing operation, without the need to cover the PE film, saving the input cost of the PE film, reducing the number of process procedures, and reducing the manufacturing cost;

[0057] 2) The original dry film manufacturing process is omitted, including the winding operation, intermediate transportation, and dry film unwinding process in the film pressing process, which greatly reduces the number of process procedures, improves the film coating efficiency, and reduces the production cost;

[0058] 3) The coating position of the photosensitive film on the PET carrier film can be flexibly controlled according to the size of the plate, intermittent coating is realized, the subsequent slitting action of the PET carrier film is omitted, and the waste of photosensitive emulsion caused by the original continuous coating process is avoided;

[0059] 4) Through the realization of intermittent coating, the PET carrier film can be recycled after being peeled off from the photosensitive film, thereby reducing the production cost;

[0060] 5) Through the setting of the upper and lower film coating units, the film coating of both sides of the plate can be realized at the same time, and the upper and lower film coating units are independently controlled and work, which can meet the film coating demand of single-sided film coating and double-sided film coating, and the equipment has high versatility.

[0061] Example Two

[0062] The efficient film coating all-in-one machine 100 of the present embodiment is basically the same as that in Example One, and the difference lies in that it comprises one film coating unit.

[0063] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A high-efficiency film-making and coating integrated machine, characterized in that: The application relates to a high-efficiency film manufacturing and laminating machine for photosensitive dry films on PCB boards or semiconductor carrier boards, which comprises at least one film manufacturing and laminating unit, the film manufacturing and laminating unit comprises a heating box, a carrier film unwinding unit arranged in the heating box, a carrier film conveying roller module and a coating module, a film pressing roller for pressing the photosensitive film on the board, and a solvent supply module for supplying the photosensitive solvent to the coating module; a heating channel is arranged in the heating box, and the carrier film conveying roller module is arranged along the heating channel; the heating channel comprises a first low-temperature heating section, a high-temperature heating section and a second low-temperature heating section in sequence according to the carrier film conveying direction. A first containing space and a second containing space are arranged in the heating box, the first containing space and the second containing space are communicated through a first through port, the second containing space and the beginning end of the heating channel are communicated through a second through port; the carrier film unwinding unit is arranged in the first containing space, the coating module is arranged in the second containing space, the PET carrier film released by the carrier film unwinding unit enters the second containing space through the first through port, and the PET carrier film is coated with a layer of photosensitive film through the coating module and then enters the heating channel through the second through port.

2. The efficient film manufacturing and laminating all-in-one machine according to claim 1, characterized in that: The film manufacturing and laminating unit is arranged in two, the two film manufacturing and laminating units are arranged oppositely, and the board is conveyed through a conveying device between the two film manufacturing and laminating units.

3. The efficient film manufacturing and laminating all-in-one machine according to claim 1, characterized in that: An output port is arranged on the heating box, the film pressing roller is arranged at the output port, the PET carrier film coated with the photosensitive film is conveyed to the film pressing roller by the carrier film conveying roller module, and the photosensitive film on the PET carrier film is attached to the surface of the board through the film pressing roller.

4. The efficient film manufacturing and laminating all-in-one machine according to any one of claims 1 to 3, characterized in that: The coating module comprises a coating head and an air knife for aligning the PET carrier film; the solvent supply module comprises a solvent tank, the solvent tank is communicated with the coating head through a pipeline, and a metering pump is arranged on the pipeline communicated between the solvent tank and the coating head.

5. The efficient film manufacturing and laminating all-in-one machine according to claim 1 or 2, characterized in that: The film pressing roller is an electromagnetic constant-temperature film pressing roller.

6. The efficient film manufacturing and laminating all-in-one machine according to claim 1 or 2, characterized in that: A PET recycling roller is arranged in the heating box.

7. The efficient film manufacturing and laminating all-in-one machine according to claim 1 or 2, characterized in that: A slitting module is further arranged on the board conveying path and located at the output end of the film manufacturing and laminating unit.

8. A high efficiency mulching method characterized by: The high-efficiency film manufacturing and laminating machine realizes the following steps: S1) arranging a film manufacturing and laminating unit above or / and below the board conveying path; the board is automatically conveyed through the film manufacturing and laminating unit by a conveying device; S2) intermittently or continuously coating the photosensitive film on the PET carrier film in the upper film manufacturing and laminating unit or / and the lower film manufacturing and laminating unit; S3) conveying the PET carrier film carrying the photosensitive film in a heating channel, so that the photosensitive film is in a solidified or semi-solidified state; S4) conveying the PET carrier film carrying the photosensitive film to a pair of constant-temperature film pressing rollers, and pressing the photosensitive film on the corresponding board surface through the constant-temperature film pressing rollers. S5) if the photosensitive film on the PET carrier film is intermittent coating, the PET carrier film is recycled by a PET recycling roller; if the photosensitive film on the PET carrier film is continuous coating, the PET carrier film is cut off by a slitting module.

Images