Mechanism for corona treatment of photosensitive dry film mother roll base film

Abstract

The utility model relates to the technical field of photosensitive dry film mother roll base film, specifically to be used for the corona treatment mechanism of photosensitive dry film mother roll base film, including processing box, the inside rotation of processing box is installed with rotation rod, the inside rotation of processing box is installed with guide rod. The utility model first puts the winding roller into the mounting groove of processing box front side, then sticks the surface with two groups of fixed blocks and fixes through bolt, completes positioning installation, subsequently first motor starts, its output end inserts the rectangular groove of winding roller left end, drives winding roller rotation, realizes the winding of photosensitive dry film mother roll base film body after corona treatment, the cleaning roller in processing box is under the spring elasticity force, always contacts photosensitive dry film mother roll base film body bottom through rectangular block, can clean surface dust and impurity in time in the photosensitive dry film mother roll base film body conveying process, to guarantee base film surface clean, avoid the influence corona treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of photosensitive dry film master roll base film technology, specifically to a corona treatment mechanism for photosensitive dry film master roll base film. Background Technology

[0002] The master roll base film of photosensitive dry film usually refers to the polyester film (PET film) that serves as the carrier of the photosensitive layer in the photosensitive dry film. It plays a role in supporting and protecting the photosensitive layer in the photosensitive dry film, and at the same time, it can prevent oxygen from diffusing into the resist layer during exposure, thus avoiding affecting the photosensitivity.

[0003] As a key material in the printed circuit board manufacturing industry, the surface properties of photosensitive dry film base film directly affect the processing quality of subsequent exposure, development, and etching processes. During corona treatment, photosensitive dry film base film is prone to deviation during transport due to excessively loose tension, or stretching and deformation due to excessive tension, ultimately affecting the uniformity of corona treatment. Moreover, the surface cleaning effect of photosensitive dry film base film is not good, and dust, fibers, and other impurities easily adhere to the base film during storage and transportation. These impurities can lead to uneven corona discharge, forming local surface tension differences, which in turn cause uneven coating of photosensitive emulsion in the subsequent process. Therefore, a corona treatment mechanism for photosensitive dry film master roll base film is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a corona treatment mechanism for the base film of a photosensitive dry film master roll. This mechanism can solve the problems that the base film is prone to misalignment during corona treatment due to excessively loose tension or excessively tight tension, which can cause stretching and deformation and ultimately affect the uniformity of the corona treatment. Furthermore, the surface cleaning effect of the photosensitive dry film base film is not ideal, and dust, fibers, and other impurities easily adhere to the base film during storage and transportation. These impurities can lead to uneven corona discharge, creating localized surface tension differences, which in turn can cause uneven coating of the subsequent photosensitive emulsion.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corona treatment mechanism for a photosensitive dry film master roll base film, comprising a processing box, a rotating rod rotatably mounted inside the processing box, a guide rod rotatably mounted inside the processing box, a photosensitive dry film master roll base film body disposed inside the processing box, the surface of the photosensitive dry film master roll base film body contacting the surface of the rotating rod and the guide rod, a corona generator rotatably mounted inside the processing box, the surface of the corona generator contacting the surface of the photosensitive dry film master roll base film body, a winding assembly disposed inside the processing box, and an adjustment assembly disposed inside the processing box; The winding assembly includes a winding roller, and the front side of the processing box has an installation groove, with the winding roller located inside the installation groove; The adjustment assembly includes two sets of mounting plates. The outer side of the mounting plates is fixedly installed on the inner wall of the processing box. A mounting block is provided at the bottom of the mounting plate, and an adjustment roller is provided at the bottom of the mounting block. The surface of the adjustment roller is fixedly installed on the bottom of the mounting block.

[0006] Preferably, the winding assembly further includes two sets of fixing blocks located inside the mounting groove, with the back of the fixing blocks in contact with the surface of the winding roller, and the fixing blocks being detachably installed by bolts and a processing box.

[0007] Preferably, a first motor is fixedly installed on the left side of the processing box, and a rectangular groove is provided at the left end of the winding roller, with the output end of the first motor connected to the rectangular groove.

[0008] Preferably, the adjusting assembly further includes several sets of connecting rods. The top of the outer side of the connecting rod is movably mounted to a mounting plate via a pivot pin, and the bottom of the outer side of the connecting rod is movably mounted to a mounting block via a pivot pin. Stabilizing blocks are fixedly mounted on the front and rear sides of the bottom of the mounting plate. Screws are movably mounted on the front ends of two sets of stabilizing blocks. Screw sleeves are threaded onto the surface of the screws. The front ends of the screw sleeves extend through to the front of the other two sets of stabilizing blocks and are movably mounted to the stabilizing blocks. A connecting frame is movably mounted on the surface of the screw sleeve via a pivot pin. A round rod is provided on the top of the mounting plate. The two ends of the round rod are fixedly mounted to the inner ends of two sets of connecting rods. The interior of the connecting frame is fixedly mounted on the surface of the round rod.

[0009] Preferably, a synchronous pulley is fixedly installed on the front side of the threaded sleeve surface, and a second motor is fixedly installed at the front end of one set of the threaded sleeves, and the two sets of synchronous pulleys are installed through belt drive.

[0010] Preferably, the processing box is equipped with a cleaning roller, the surface of which is in contact with the bottom of the photosensitive dry film master roll base film body.

[0011] Preferably, rectangular blocks are fixedly installed at both ends of the cleaning roller, and a spring is fixedly installed inside the processing box, with the top of the spring and the bottom of the rectangular blocks fixedly installed.

[0012] Compared with the prior art, the present invention provides a corona treatment mechanism for the base film of photosensitive dry film master roll, which has the following beneficial effects: 1. First, place the take-up roller into the mounting slot on the front side of the processing box, then use two sets of fixing blocks to adhere to its surface and fix it with bolts to complete the positioning installation. Then, the first motor starts, and its output end is inserted into the rectangular slot on the left end of the take-up roller, driving the take-up roller to rotate, thereby realizing the winding of the photosensitive dry film master roll base film body after corona treatment. Under the elastic force of the spring, the cleaning roller in the processing box is always in contact with the bottom of the photosensitive dry film master roll base film body through the rectangular block, which can clean the surface dust and impurities in time during the conveying of the photosensitive dry film master roll base film body, thereby ensuring the cleanliness of the base film surface and avoiding affecting the corona treatment effect.

[0013] 2. When it is necessary to adapt to the base film body of photosensitive dry film master roll of different thicknesses or to adjust its tension, start the second motor. The motor first drives a set of screw sleeves and synchronous pulleys to rotate, and then drives another set of screw sleeves and synchronous pulleys to move synchronously through the belt. The rotation of the screw sleeves will drive the surface connecting frame to move, which in turn pulls the round rod, causing the connecting rod to rotate around the shaft pin as the fulcrum, and finally pushes the mounting block to move up and down. Attached Figure Description

[0014] Figure 1 This is a front view of the processing box of this utility model; Figure 2 This is a cross-sectional view of the processing box of this utility model; Figure 3 This is a partial structural diagram of the internal structure of the processing box of this utility model; Figure 4 This is a schematic diagram of the mounting plate of this utility model; Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle; Figure 6 This utility model Figure 2 Enlarged structural diagram at point B.

[0015] In the diagram: 1. Processing box; 2. Rotating rod; 3. Guide rod; 4. Photosensitive dry film master roll base film body; 5. Corona generator; 6. Rewinding assembly; 61. Rewinding roller; 62. Mounting groove; 63. Fixing block; 64. First motor; 65. Rectangular groove; 7. Adjusting assembly; 71. Mounting plate; 72. Mounting block; 73. Adjusting roller; 74. Connecting rod; 75. Stabilizing block; 76. Screw; 77. Screw sleeve; 78. Connecting frame; 711. Round rod; 79. Synchronous pulley; 710. Second motor; 8. Cleaning roller; 9. Rectangular block; 10. Spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] Please see Figure 1 - Figure 6 The corona treatment mechanism for the photosensitive dry film master roll base film in this embodiment includes a processing box 1, a rotating rod 2 rotatably mounted inside the processing box 1, a guide rod 3 rotatably mounted inside the processing box 1, a photosensitive dry film master roll base film body 4 disposed inside the processing box 1, the surface of the photosensitive dry film master roll base film body 4 and the surface of the rotating rod 2 and the guide rod 3 in contact, a corona generator 5 rotatably mounted inside the processing box 1, the surface of the corona generator 5 in contact with the surface of the photosensitive dry film master roll base film body 4, a winding assembly 6 disposed inside the processing box 1, and an adjustment assembly 7 disposed inside the processing box 1. The winding assembly 6 includes a winding roller 61, and a mounting groove 62 is provided on the front side of the processing box 1, with the winding roller 61 located inside the mounting groove 62; The adjustment assembly 7 includes two sets of mounting plates 71. The outer side of the mounting plate 71 is fixedly installed on the inner wall of the processing box 1. The bottom of the mounting plate 71 is provided with a mounting block 72. The bottom of the mounting block 72 is provided with an adjustment roller 73. The surface of the adjustment roller 73 is fixedly installed on the bottom of the mounting block 72.

[0018] In use, the photosensitive dry film master roll base film body 4 to be processed is first installed inside the processing box 1, so that the surface of the photosensitive dry film master roll base film body 4 is in close contact with the surfaces of the rotating rod 2 and the guide rod 3 respectively. Driven by the rotating rod 2 and limited by the guide rod 3, the photosensitive dry film master roll base film body 4 is transported in the processing box 1. Then, the corona generator 5 is activated, so that its surface contacts the surface of the transported photosensitive dry film master roll base film body 4, and corona treatment is performed on the surface of the photosensitive dry film master roll base film body 4 to enhance the surface tension of the photosensitive dry film master roll base film body 4 to meet the requirements of subsequent processing. During the processing, the photosensitive dry film master roll base film body 4 after corona treatment can be wound up by the winding assembly 6. At the same time, the adjustment assembly 7 is used to adjust the transport state of the photosensitive dry film master roll base film body 4 in the processing box 1 according to the tension of the photosensitive dry film master roll base film body 4 and the processing requirements to ensure that the corona treatment is uniform and stable.

[0019] The winding assembly 6 also includes two sets of fixing blocks 63. The fixing blocks 63 are located inside the mounting groove 62. The back of the fixing blocks 63 is in contact with the surface of the winding roller 61. The fixing blocks 63 can be detachably installed by bolts and the processing box 1. A first motor 64 is fixedly installed on the left side of the processing box 1, and a rectangular groove 65 is opened at the left end of the winding roller 61. The output end of the first motor 64 is inserted into the rectangular groove 65. The processing box 1 is equipped with a cleaning roller 8, the surface of which is in contact with the bottom of the photosensitive dry film master roll base film body 4; Rectangular blocks 9 are fixedly installed at both ends of the cleaning roller 8. A spring 10 is fixedly installed inside the processing box 1, with the top of the spring 10 and the bottom of the rectangular block 9 fixedly installed.

[0020] In use, first place the take-up roller 61 into the mounting slot 62 opened on the front side of the processing box 1. Then, place two sets of fixing blocks 63 into the mounting slot 62 and make their back sides fit against the surface of the take-up roller 61. Fix the fixing blocks 63 to the processing box 1 with bolts to complete the installation and positioning of the take-up roller 61. Then, start the first motor 64. The output end of the first motor 64 is inserted into the rectangular slot 65 on the left end of the take-up roller 61, which will drive the take-up roller 61 to rotate, thereby realizing the winding of the photosensitive dry film master roll base film body 4 after corona treatment. Moreover, the cleaning roller 8 inside the processing box 1, under the elastic force of the spring 10, drives the cleaning roller 8 through the rectangular block 9 to always contact the bottom of the photosensitive dry film master roll base film body 4. During the conveying process of the photosensitive dry film master roll base film body 4, dust and impurities are cleaned from its surface to ensure the cleanliness of the surface of the photosensitive dry film master roll base film body 4 and avoid affecting the corona treatment effect.

[0021] Please see Figure 1 - Figure 6 The adjustment assembly 7 also includes several sets of connecting rods 74. The top of the outer side of the connecting rod 74 is movably installed through a shaft pin and a mounting plate 71. The bottom of the outer side of the connecting rod 74 is movably installed through a shaft pin and a mounting block 72. Stabilizing blocks 75 are fixedly installed on the front and rear sides of the bottom of the mounting plate 71. Screws 76 are movably installed at the front ends of two sets of stabilizing blocks 75. Screw sleeves 77 are threaded on the surface of the screws 76. The front end of the screw sleeves 77 extends through to the front of the other two sets of stabilizing blocks 75 and is movably installed with the stabilizing blocks 75. A connecting frame 78 is movably installed on the surface of the screw sleeves 77 through a shaft pin. A round rod 711 is provided on the top of the mounting plate 71. The two ends of the round rod 711 are fixedly installed with the inner ends of two sets of connecting rods 74. The interior of the connecting frame 78 is fixedly installed on the surface of the round rod 711. A synchronous pulley 79 is fixedly installed on the front side of the surface of the threaded sleeve 77. A second motor 710 is fixedly installed at the front end of one set of threaded sleeves 77. The two sets of synchronous pulleys 79 are installed through belt drive.

[0022] In use, if it is necessary to adjust the height of the adjusting roller 73 to adapt to the base film body 4 of different thicknesses of photosensitive dry film master roll or to adjust the tension of the base film, the second motor 710 is started. The output end of the second motor 710 drives one set of screw sleeves 77 and one set of synchronous pulleys 79 to rotate. The rotation of one set of synchronous pulleys 79 drives the other set of screw sleeves 77 and synchronous pulleys 79 to rotate through the belt. When the two sets of screw sleeves 77 rotate, the connecting frame 78 on its surface will move accordingly, thereby pulling the round rod 711 to move. The round rod 711 drives the inner ends of the two sets of connecting rods 74 fixed thereto to move. The connecting rods 74 rotate around the shaft pin as the fulcrum, thereby pushing the mounting block 72 to move up and down, and finally realize the adjustment of the height of the adjusting roller 73, thereby ensuring the stability of the photosensitive dry film master roll base film body 4 in conveying and corona treatment.

[0023] The working principle of the above embodiments is as follows: When in use, place the photosensitive dry film master roll base film body 4 into the processing box 1, and follow the conveying path of the photosensitive dry film master roll base film body 4 in the figure so that the surface of the photosensitive dry film master roll base film body 4 is in close contact with the outer circular surface of the rotating rod 2 and the guide rod 3 respectively. Then, the take-up roller 61 is placed into the mounting groove 62 on the front side of the processing box 1, so that the axis of the take-up roller 61 is parallel to the side wall of the processing box 1. Then, two sets of fixing blocks 63 are embedded into the mounting groove 62, so that the back of the fixing blocks 63 is tightly attached to the surface of the take-up roller 61. The fixing blocks 63 are detachably fixed to the side wall of the processing box 1 with bolts to complete the positioning of the take-up roller 61. Finally, the output end of the first motor 64 is aligned with the rectangular groove 65 on the left end of the take-up roller 61 and inserted. Then, the free end of the photosensitive dry film master roll base film body 4, which has passed through the rotating rod 2 and the guide rod 3, is pulled to the surface of the take-up roller 61. The end edge of the photosensitive dry film master roll base film body 4 is fixed to the take-up roller 61 with tape or special clamps. When it is necessary to perform corona treatment on the photosensitive dry film master roll base film body 4, the first motor 64 is started first. The output end of the first motor 64 drives the take-up roller 61 to rotate. The rotation of the take-up roller 61 drives the photosensitive dry film master roll base film body 4 to be wound up. Then the corona generator 5 is started. The surface of the corona generator 5 maintains stable contact with the surface of the photosensitive dry film master roll base film body 4 in the conveying process, and performs corona modification treatment on the surface of the photosensitive dry film master roll base film body 4 to enhance the surface tension of the base film. During the corona treatment process, if the photosensitive dry film master roll base film body 4 is observed to be loose or overstretched, the second motor 710 is started. The output end of the second motor 710 drives a set of screw sleeves 77 and synchronous pulleys 79 to rotate. Through belt transmission, another set of synchronous pulleys 79 and screw sleeves 77 rotate synchronously. When the screw sleeves 77 rotate, they drive the connecting frame 78 on the surface to move. The connecting frame 78 pulls the round rod 711, causing the round rod 711 to drive two sets of connecting rods 74 to rotate around the pivot pin. The bottom of the connecting rods 74 pushes the mounting block 72 and the adjusting roller 73 to move up and down until the tension of the photosensitive dry film master roll base film body 4 is restored to the appropriate state. Then the second motor 710 is turned off, thus completing the tension adjustment of the photosensitive dry film master roll base film body 4.

[0024] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corona treatment mechanism for a photosensitive dry film master roll base film, characterized in that: The system includes a processing box (1), a rotating rod (2) rotatably mounted inside the processing box (1), a guide rod (3) rotatably mounted inside the processing box (1), a photosensitive dry film master roll base film body (4) disposed inside the processing box (1), the surface of the photosensitive dry film master roll base film body (4) and the surface of the rotating rod (2) and the guide rod (3) in contact, a corona generator (5) rotatably mounted inside the processing box (1), the surface of the corona generator (5) in contact with the surface of the photosensitive dry film master roll base film body (4), a winding assembly (6) disposed inside the processing box (1), and an adjustment assembly (7) disposed inside the processing box (1). The winding assembly (6) includes a winding roller (61), and the front side of the processing box (1) is provided with a mounting groove (62), and the winding roller (61) is located inside the mounting groove (62); The adjustment assembly (7) includes two sets of mounting plates (71). The outer side of the mounting plate (71) and the inner wall of the processing box (1) are fixedly installed. The bottom of the mounting plate (71) is provided with a mounting block (72). The bottom of the mounting block (72) is provided with an adjustment roller (73). The surface of the adjustment roller (73) and the bottom of the mounting block (72) are fixedly installed.

2. The corona treatment mechanism for the base film of the photosensitive dry film master roll according to claim 1, characterized in that: The winding assembly (6) also includes two sets of fixing blocks (63), which are located inside the mounting groove (62). The back of the fixing block (63) is in contact with the surface of the winding roller (61). The fixing block (63) is detachably installed by bolts and processing box (1).

3. The corona treatment mechanism for the base film of the photosensitive dry film master roll according to claim 1, characterized in that: A first motor (64) is fixedly installed on the left side of the processing box (1), and a rectangular groove (65) is opened at the left end of the winding roller (61). The output end of the first motor (64) is connected to the rectangular groove (65).

4. The corona treatment mechanism for the base film of the photosensitive dry film master roll according to claim 1, characterized in that: The adjustment assembly (7) also includes several sets of connecting rods (74). The top of the outer side of the connecting rod (74) is movably installed by a pin and a mounting plate (71). The bottom of the outer side of the connecting rod (74) is movably installed by a pin and a mounting block (72). Stabilizing blocks (75) are fixedly installed on the front and rear sides of the bottom of the mounting plate (71). Screws (76) are movably installed at the front ends of two sets of stabilizing blocks (75). Screw sleeves (77) are threaded on the surface of the screws (76). The front end of the screw sleeves (77) extends through to the front of the other two sets of stabilizing blocks (75) and is movably installed with the stabilizing blocks (75). A connecting frame (78) is movably installed on the surface of the screw sleeves (77) by a pin. A round rod (711) is provided on the top of the mounting plate (71). The two ends of the round rod (711) and the inner ends of two sets of connecting rods (74) are fixedly installed. The interior of the connecting frame (78) is fixedly installed on the surface of the round rod (711).

5. The corona treatment mechanism for the base film of the photosensitive dry film master roll according to claim 4, characterized in that: A synchronous pulley (79) is fixedly installed on the front side of the surface of the threaded sleeve (77), and a second motor (710) is fixedly installed at the front end of one set of the threaded sleeves (77). The two sets of synchronous pulleys (79) are installed by belt drive.

6. The corona treatment mechanism for the base film of the photosensitive dry film master roll according to claim 1, characterized in that: The processing box (1) is equipped with a cleaning roller (8), the surface of which is in contact with the bottom of the photosensitive dry film master roll base film body (4).

7. The corona treatment mechanism for photosensitive dry film master roll base film according to claim 6, characterized in that: Rectangular blocks (9) are fixedly installed at both ends of the cleaning roller (8), and a spring (10) is fixedly installed inside the processing box (1). The top of the spring (10) and the bottom of the rectangular block (9) are fixedly installed.

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