Photosensitive dry film laminating pressure adjusting device and method thereof

Abstract

The invention relates to the technical field of film covering, in particular to a photosensitive dry film covering pressure adjusting device and method. The invention relates to a photosensitive dry film laminating pressure adjusting device, which comprises a machine shell, the machine shell is composed of two supporting frames which are arranged in parallel. The pressure-bearing roller is rotationally installed between the two machine shells, and the pressure-bearing roller is located on the lower portions of the feeding sides of the machine shells; the number of the conveying rollers is not less than two, and the conveying rollers are horizontally arranged between the machine shells at intervals; the guide frame is fixedly connected to the interior of the machine shell; the sliding frame is connected to the feeding side of the machine shell in a sliding mode through a guide frame. By means of the pressing mechanism with the electric push rod matched with the tension spring, the photosensitive dry film is automatically tightened in the initial film covering stage, the pressing roller elastically presses the film material under the action of the tension spring, constant tension control is achieved, waste of the first-section film material caused by manual tension adjustment is avoided, and meanwhile the film covering quality of the photosensitive dry film is improved.

Description

Technical Field

[0001] The present invention relates to the field of lamination technology, and in particular to a device and method for regulating the lamination pressure of a photosensitive dry film. Background Art

[0002] Photosensitive dry film, an important polymer material, is widely used in the manufacturing process of printed circuit boards (PCBs), primarily for pattern transfer and protection against etching or electroplating. Its working principle is that ultraviolet light triggers a polymerization reaction, causing the dry film to solidify and firmly adhere to the substrate surface. In actual production, the lamination process is a key step and is typically performed using mechanical roller lamination equipment. The pressure between steel and silicone rollers evenly applies the dry film to the substrate. This type of equipment is widely used due to its simple structure, low cost, and easy operation.

[0003] However, the existing mechanical roller lamination technology still has some defects. First, in the initial stage of laminating with a new dry film roll, the dry film needs to be manually inserted into the roller system. At this time, the dry film is in a relaxed state. Traditional equipment only controls the pressure by adjusting the gap between the rollers. It is unable to apply effective tension adjustment to the dry film during the film insertion stage, resulting in the need to rely on subsequent guide rollers to pull it to achieve tension. The excess dry film pulled out in this process is often cut and discarded, resulting in material waste; secondly, the roller system usually operates with fixed parameters and lacks the ability to adapt to the changes in the viscoelasticity of the dry film material under changes in ambient temperature and humidity. As a result, uneven lamination, bubbles or wrinkles are easily generated under different working conditions. Therefore, we propose a photosensitive dry film lamination pressure adjustment device and method to overcome the above defects. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a device and method for adjusting the lamination pressure of a photosensitive dry film.

[0005] A device for adjusting the lamination pressure of a photosensitive dry film comprises: a casing, wherein the casing is two supporting frames arranged in parallel; a pressure roller rotatably mounted between the two casings, the pressure roller being located at the lower part of the feeding side of the casing; at least two conveying rollers are provided and are horizontally spaced and arranged between the casings; further comprising: a guide frame fixedly connected to the casing; a sliding frame slidably connected to the feeding side of the casing via the guide frame, a mounting shaft being fixedly connected between the two sliding frames, and a guide groove adapted for the mounting shaft being provided on the casing; a laminating roller rotatably mounted on the mounting shaft, the mounting shaft being provided with a hub motor for driving the laminating roller; a hydraulic cylinder fixedly mounted on the top of the casing, the piston rod of the hydraulic cylinder being connected to the corresponding sliding frame connected; a dry film roller is arranged on the side of the casing away from the laminating roller, and a photosensitive dry film is wound on the dry film roller; a pressing mechanism is provided at the casing between the laminating roller and the dry film roller, and the pressing mechanism is used to press the photosensitive dry film wound between the laminating roller and the dry film roller; the pressing mechanism includes: a bearing seat fixedly mounted on the inner side of the casing; a swing frame rotatably arranged on the inner side wall of the casing through the bearing seat; a pressing roller rotatably connected to the end of the swing frame away from the bearing seat; a positioning shaft fixedly arranged on the inner side wall of the casing, and the middle part of the swing frame is connected to the positioning shaft by a tension spring; an electric push rod is symmetrically fixedly mounted on the inner side walls of the casing at two places, and the push rod ends of the electric push rod are respectively supported and limited on the corresponding swing frames on the same side.

[0006] The cam is secured to the outer wall of the roll and is secured to the chassis, and the cam is secured to the chassis by a spring which is secured to the chassis' outer wall.

[0007] Furthermore, the dry film roller is detachably arranged between the two casings, and the dry film roller facilitates the installation of the roll of photosensitive dry film wound on the casing. No less than two guide rollers are rotatably connected to the inner wall of the casing between the pressing mechanism and the dry film roller, and gaps are left between the guide rollers for the photosensitive dry film to pass through. The guide rollers are used to guide the photosensitive dry film. A limit rod is fixedly connected to the inner wall of the casing between the swing frame and the conveying roller, and the limit rod is used to limit the swing frame.

[0008] Furthermore, a pre-tightening mechanism is provided around one side of the laminating roller, and the pre-tightening mechanism includes fixed plates symmetrically fixedly connected to the two ends of the mounting shaft, guide rods are fixedly connected in the two fixed plates, and sliders are slidably connected to the guide rods of the two fixed plates, and a pre-tightening roller is rotatably installed between the two sliders. A spring 2 is provided between the fixed plate and the slider, and the pre-tightening roller is used to press the photosensitive dry film wound on the laminating roller.

[0009] Furthermore, wedge plates are symmetrically fixed on the side walls of the casing near the laminating roller, and limiting wheels are rotatably provided on the sliders at both ends of the pre-tightening roller. The wedge plates contact and block the limiting wheels, so that spring 2 is in a compressed state. When the laminating roller is not pressed down, the wedge plates will overcome the elastic force of spring 2 to block the limiting wheels, leaving a gap between the pre-tightening roller and the laminating roller for the photosensitive dry film to pass through.

[0010] Furthermore, a support mechanism is provided between the two casings, and the support mechanism includes two connecting shafts symmetrically fixedly connected to the inner wall of the casing, and a support frame is rotatably connected between the two connecting shafts, and a plurality of support rollers are rotatably installed inside the support frame, the support frame is located on the inner side of the swing frame and the support rollers are all lower than the lower pressure roller, and the support rollers of the support frame are used for rolling and supporting the photosensitive dry film, and a slide groove is provided on the outer wall of the support frame, and a connecting plate is fixedly connected to the outer wall of the swing frame, and a protruding rod is fixedly connected to the side of the connecting plate close to the support frame, and the protruding rod is located in the slide groove of the support frame.

[0011] Furthermore, a dehumidification mechanism is provided on one side of the pre-tensioning mechanism, and the dehumidification mechanism includes a mounting frame and a heating lamp. The mounting frame is fixedly connected to the end of the fixing plate away from the coating roller, and a long strip of heating lamp is obliquely installed on the mounting frame. The heating lamp faces the surface of the coating roller, and the heating lamp is used to heat and dry the photosensitive dry film wound on the coating roller.

[0012] Furthermore, a smoothing mechanism is provided between the two casings near the dry film roller, and the smoothing mechanism includes a bracket and a smoothing roller. The inner side walls of the two casings are laterally fixedly connected with a bracket, and two smoothing rollers are symmetrically mounted on the bracket for rotation. The two smoothing rollers are distributed in an "eight" shape below the bracket, and the smoothing rollers are in dynamic contact with the coated photosensitive dry film rollers. The smoothing rollers are used to smooth the photosensitive dry film in an orderly manner.

[0013] Furthermore, a method for adjusting the lamination pressure of a photosensitive dry film is provided, and the specific steps are as follows: S1. Push the substrate to be laminated from the side of the pressure roller of the housing, pass through the pressure roller in sequence and transfer to the conveyor roller. At the same time, the photosensitive dry film on the dry film roller passes through the guide roller and the pressing mechanism in sequence, bypasses the laminating roller, and is guided downward to the rolling area between the laminating roller and the pressure roller. S2. Start the hydraulic cylinder to push the laminating roller downward. The rubber ring on the laminating roller can elastically press the photosensitive dry film onto the substrate surface. The limiting wheel of the pre-tightening roller is released from the limit of the wedge plate. Under the action of the second spring, the photosensitive dry film is pressed against the surface of the laminating roller. At the same time, the electric push rod retracts, releasing the support limit of the swing frame. The swing frame swings around the bearing seat under the tension of the tension spring, so that the lower pressure roller presses the photosensitive dry film and maintains a stable tension. The support frame continues to support the photosensitive dry film. S3. The laminating roller rotates under the drive of the hub motor, driving the photosensitive dry film to continuously adhere to the surface of the substrate for laminating operation. During the process, the heating lamp heats and dehumidifies the photosensitive dry film on the laminating roller, and cooperates with the smoothing roller to smooth the photosensitive dry film to prevent deviation and wrinkling.

[0014] The beneficial effects of the present invention are: 1. The present invention uses a downward pressing mechanism composed of an electric push rod and a tension spring to automatically tighten the photosensitive dry film at the initial stage of lamination. The downward pressing roller elastically presses the film material under the action of the tension spring to achieve constant tension control, avoid the waste of the first section of film material caused by manual tension adjustment, and at the same time improve the quality of photosensitive dry film lamination.

[0015] 2. The laminating roller of the present invention adopts a hydraulic oil expansion structure, so that the laminating roller can fully fit the grooves and protrusions on the surface of the substrate during the rolling process, achieving uniform fitting, and can meet the laminating needs of uneven surfaces or high-precision circuit boards.

[0016] 3. The present invention can automatically compress the film material at the end of dry film unwinding through the pre-tightening mechanism, and continuously support it with the support frame to prevent the tail photosensitive dry film from sagging or wrinkling, thereby ensuring the quality of the tail film coating and reducing the scrap rate.

[0017] 4. The present invention can also pre-dry the photosensitive dry film through a heating lamp to prevent excessive humidity from affecting adhesion and photosensitive properties; the "eight"-shaped smoothing roller effectively corrects the deviation of the film material and further reduces the risk of wrinkling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the components of the present invention, such as the housing, pressure roller, laminating roller and drying roller.

[0020] Figure 3 It is a schematic diagram of the coordination relationship among the laminating roller, the drying roller, the guide roller and the pressing mechanism of the present invention.

[0021] Figure 4 Schematic diagram of the guide frame, sliding frame, laminating roller, mounting shaft and hydraulic cylinder of the present invention.

[0022] Figure 5It is a schematic diagram of the specific structure of the laminating roller of the present invention.

[0023] Figure 6 It is a three-dimensional structural diagram of the specific components of the housing and the pressing mechanism of the present invention.

[0024] Figure 7 It is a schematic diagram of the components such as the laminating roller, pre-tightening mechanism and dehumidification mechanism of the present invention.

[0025] Figure 8 This is a connection diagram of the installation shaft, fixed plate, guide rod, slider and pre-tightening roller of the present invention.

[0026] Figure 9 It is a schematic diagram of the matching relationship between the housing, slider, wedge plate and limiting wheel components of the present invention.

[0027] Figure 10 It is a schematic diagram of the swing frame, support frame, connecting plate and other components of the present invention.

[0028] Figure 11 Schematic diagram of specific components of the support mechanism of the present invention.

[0029] Figure 12 It is a schematic diagram of the connection relationship between the bracket and the smoothing roller of the present invention.

[0030] In the above figures: 100: photosensitive dry film, 200: substrate, 1: housing, 2: pressure roller, 21: conveyor roller, 3: guide frame, 4: sliding frame, 5: laminating roller, 51: mounting shaft, 501: roller body, 502: rubber ring body, 503: liquid storage frame, 504: piston plate, 505: spring 1, 506: mounting rod, 507: adjustment plate, 508: screw, 6: hydraulic cylinder, 7: dry film roller, 8: pressing mechanism, 81: bearing seat, 82: swing frame, 83: pressing roller, 84: positioning shaft, 85: tension spring, 86 : Electric push rod, 87: Limit rod, 9: Guide roller, 10: Pre-tightening mechanism, 101: Fixed plate, 102: Guide rod, 103: Slider, 104: Pre-tightening roller, 105: Spring 2, 11: Wedge plate, 111: Limiting wheel, 12: Support mechanism, 121: Connecting shaft, 122: Support frame, 1221: Slide groove, 123: Support roller, 124: Connecting plate, 1241: Protruding rod, 13: Dehumidification mechanism, 131: Mounting frame, 132: Heating lamp, 14: Smoothing mechanism, 141: Bracket, 142: Smoothing roller. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] A photosensitive dry film laminating pressure regulating device, referring to Figures 1-6 As shown, it includes: a casing 1, which is two supporting frames arranged in parallel; a pressure roller 2, which is rotatably installed between the two casings 1, and the pressure roller 2 is located at the lower part of the feeding side of the casing 1; four conveying rollers 21 are provided and are arranged horizontally between the casings 1; it also includes: a guide frame 3, which is fixedly connected to the casing 1; a sliding frame 4, which is slidably connected to the feeding side of the casing 1 through the guide frame 3, and a mounting shaft 51 is fixedly connected between the two sliding frames 4, and a guide groove adapted for the mounting shaft 51 is provided on the casing 1; a coating roller 5, which is rotatably installed on the mounting shaft 51, and the mounting shaft 51 is provided with a hub motor for driving the coating roller 5; a hydraulic press The pressure cylinder 6 is fixedly mounted on the top of the housing 1, and the piston rod of the hydraulic cylinder 6 is connected to the corresponding sliding frame 4; the dry film roller 7 is arranged on the side of the housing 1 away from the laminating roller 5, and the photosensitive dry film 100 is wound on the dry film roller 7; a pressing mechanism 8 is provided at the housing 1 between the laminating roller 5 and the dry film roller 7, and the pressing mechanism 8 is used to press the photosensitive dry film 100 wound between the laminating roller 5 and the dry film roller 7; the pressing mechanism 8 includes: a bearing seat 81, fixedly mounted on the inner side of the housing 1; a swing frame 82, which is rotatably arranged on the inner wall of the housing 1 through the bearing seat 81; a pressing roller 83, which is rotatably connected to the end of the swing frame 82 away from the bearing seat 81; a positioning The shaft 84 is fixedly arranged on the inner wall of the casing 1, and the middle part of the swing frame 82 is connected to the positioning shaft 84 through the tension spring 85; the electric push rod 86 is symmetrically fixedly installed on the inner wall of the casing 1 at two places, and the push rod ends of the electric push rod 86 are respectively supported and limited on the corresponding swing frame 82 on the same side, so that the tension spring 85 is in a stretched state. First, the substrate 200 to be coated is pushed in from the side of the pressure roller 2 of the casing 1. The substrate 200 will be gradually transferred to the conveying roller 21 in the two casings 1, and then the photosensitive dry film 100 wound on the dry film roller 7 is pulled out and passed through the pressing mechanism 8 and wound between the coating roller 5 and the pressure roller 2, and the hydraulic cylinder 6 is enabled to drive The laminating roller 5 on the sliding frame 4 is pressed down along the guide frame 3, and the pressed laminating roller 5 presses the pulled photosensitive dry film 100 down onto the substrate 200. Then the push rod of the electric push rod 86 retracts and no longer supports the limit swing frame 82. At this time, the lower pressing roller 83 on the swing frame 82 will contact the photosensitive dry film 100 under the action of the tension spring 85 until the lower pressing roller 83 elastically stretches the photosensitive dry film 100, so that the photosensitive dry film 100 can be kept taut in the initial stage of lamination on the substrate 200, avoiding the waste of the first section when manually adjusting the lamination tension of the photosensitive dry film 100, and improving the quality of the photosensitive dry film 100 laminating on the substrate 200.

[0033] Reference Figure 3-Figure 5 As shown, the coating roller 5 includes a roller body 501, a rubber ring body 502 and a liquid storage frame 503. The roller body 501 is rotatably mounted on the mounting shaft 51. The mounting shaft 51 is provided with a hub motor for driving the roller body 501. A rubber ring body 502 is provided on the outer sealing sleeve of the roller body 501. A ring-shaped liquid storage frame 503 is fixedly connected to the side of the roller body 501 close to the rubber ring body 502. The liquid storage frame 503 and the rubber ring body 502 are communicated with each other and remain sealed. The cavities of the rubber ring body 502 and the liquid storage frame 503 on the roller body 501 are filled with hydraulic oil. The side of the liquid storage frame 503 away from the rubber ring body 502 is slidably connected to the piston plate 504 through a connecting rod. The piston plate 504 and the liquid storage frame 503 are sealed and slidably matched. A spring 505 is provided between the connecting rod of the liquid storage frame 503 and the piston plate 504. A mounting rod 506 is fixedly connected to the outer wall of the liquid storage frame 503 away from the rubber ring body 502. An adjusting plate 507 is slidably connected to the mounting rod 506, and the adjusting plate 507 abuts against the connecting rod end of the piston plate 504. A screw rod 508 is rotatably provided on the outer wall of the liquid storage frame 503. The screw rod 508 and the adjusting plate 507 are threadedly matched. By turning the screw rod 508, the adjusting plate 507 is driven so that the adjusting plate 507 overcomes the elastic force of the spring 505 and pushes the piston plate 504. The piston plate 504 can press the hydraulic oil in the liquid storage frame 503 into the rubber The rubber ring 502 is fully expanded. When the hydraulic cylinder 6 drives the laminating roller 5 to press the photosensitive dry film 100 onto the substrate 200, the expanded rubber ring 502 on the roller 501 can tightly roll the photosensitive dry film 100 onto the substrate 200, so that the grooves and protrusions on the substrate 200 can be fully covered by the photosensitive dry film 100, further improving the quality of the laminating roller 5 rolling the photosensitive dry film 100 onto the substrate 200.

[0034] Reference Figure 3 and Figure 6 As shown, the dry film roller 7 is detachably arranged between the two casings 1. The dry film roller 7 facilitates the installation of the roll of photosensitive dry film 100 wound thereon onto the casing 1. Two guide rollers 9 are rotatably connected to the inner side wall of the casing 1 between the pressing mechanism 8 and the dry film roller 7. A gap is left between the guide rollers 9 for the photosensitive dry film 100 to pass through. The guide rollers 9 are used to guide the photosensitive dry film 100. A limit rod 87 is fixedly connected to the inner side wall of the casing 1 between the swing frame 82 and the conveying roller 21. The limit rod 87 is used to limit the swing frame 82. The limit rod 87 can limit the swing range of the swing frame 82 to ensure that the swing frame 82 tightens the photosensitive dry film 100 within a safe range.

[0035] Before the pressure regulating device is started, the operator smoothly feeds the substrate 200 to be coated into the equipment entrance, so that the substrate 200 passes through the pressure roller 2 on the feed side and is accurately transferred to the multiple horizontally arranged conveying rollers 21 inside, completing the positioning and support of the substrate 200. Then, the photosensitive dry film 100 strip drawn from the dry film roller 7 is precisely guided by several guide rollers 9 and passes through the area below the lower pressure roller 83 of the lower pressure mechanism 8. The photosensitive dry film 100 finally bypasses the coating roller 5 and falls to the working area between the coating roller 5 and the pressure roller 2 below. After the preparations are ready, the operator operates the control The control system starts the hydraulic cylinder 6, and the piston rod of the hydraulic cylinder 6 pushes the sliding frame 4 downward, and the sliding frame 4 moves downward smoothly along the guide frame 3 fixed in the housing 1, driving the mounting shaft 51 and the laminating roller 5 thereon to descend synchronously. The laminating roller 5 will directly press on the photosensitive dry film 100 laid on the surface of the substrate 200, and preliminarily press the photosensitive dry film 100 on the substrate 200. In the laminating process, the hydraulic adjustment mechanism inside the laminating roller 5 plays a key role, by rotating the screw 508 to push the adjustment plate 507, pressing the piston plate 504 to press the hydraulic oil in the liquid storage frame 503 into the rubber The rubber ring 502 is made to expand and fit tightly to the surface of the substrate 200. Even if the substrate 200 has a concave-convex structure, the photosensitive dry film 100 rolled by the rubber ring 502 can fully cover the substrate 200. At the same time, the electric push rod 86 is activated. The electric push rod 86 that originally supported the swing frame 82 actively retracts the push rod. The electric push rod 86 will release the rigid support limit of the swing frame 82. Since the tension spring 85 connected between the swing frame 82 and the positioning shaft 84 is always in a pre-stretched state, the swing frame 82 that has lost its support is continuously pulled by the tension spring 85. The downward rotation movement generated around the rotation point of the bearing seat 81 fixed on the housing 1 causes the lower pressure roller 83 at the end of the swing frame 82 to move downward. The lower pressure roller 83 will press against and contact the photosensitive dry film 100 strip located below it. The elastic characteristics of the tension spring 85 enable the lower pressure roller 83 to apply a continuous, stable and adaptive tension to the photosensitive dry film 100 that can adapt to the changes in the tightness of the film material, ensuring that the photosensitive dry film 100 is in an ideal tight state at the beginning of the lamination operation, thereby effectively eliminating material waste and poor lamination problems caused by insufficient tension or delayed manual adjustment in the initial lamination stage.

[0036] Reference Figure 1 、 Figure 7 and Figure 8As shown, a pre-tightening mechanism 10 is provided on one side of the laminating roller 5 around the photosensitive dry film 100. The pre-tightening mechanism 10 includes fixed plates 101 symmetrically fixedly connected to both ends of the mounting shaft 51. Guide rods 102 are fixedly connected to the two fixed plates 101. Sliders 103 are slidably connected to the guide rods 102 of the two fixed plates 101. A pre-tightening roller 104 is rotatably installed between the two slides 103. A second spring 105 is provided between the fixed plate 101 and the slide 103. The pre-tightening roller 104 is used to press the photosensitive dry film 100 wound on the laminating roller 5. When the photosensitive dry film 100 on the dry film roller 7 is unwound, the pre-tightening roller 104 can always press the photosensitive dry film 100 against the laminating roller 5 under the action of the second spring 105, so as to avoid the problem of loosening and wrinkling of the photosensitive dry film 100 after unwinding.

[0037] Reference Figure 8 and Figure 9 As shown, a wedge plate 11 is symmetrically fixed on the side wall of the housing 1 near the laminating roller 5, and a limiting wheel 111 is rotatably provided on the sliders 103 at both ends of the pre-tightening roller 104. The wedge plate 11 contacts and blocks the limiting wheel 111, so that the spring 2 105 is in a compressed state. When the laminating roller 5 is not pressed down, the wedge plate 11 will overcome the elastic force of the spring 2 105 to block the limiting wheel 111, leaving a section between the pre-tightening roller 104 and the laminating roller 5 for the photosensitive dry film 100 to pass through. When the hydraulic cylinder 6 drives the laminating roller 5 to roll down the photosensitive dry film 100, the pre-tightening mechanism 10 will move downward synchronously with the laminating roller 5. At this time, the limiting wheel 111 at the end of the slider 103 in the pre-tightening mechanism 10 will slide away from the wedge plate 11. After being limited by the wedge plate 11, the pre-tightening roller 104 will press the photosensitive dry film 100 against the surface of the laminating roller 5 under the action of the spring 2 105, thereby ensuring the quality of the laminating roller 5 rolling the photosensitive dry film 100 on the substrate 200.

[0038] Reference Figure 1 、 Figure 10 and Figure 11As shown, a support mechanism 12 is provided between the two housings 1, and the support mechanism 12 includes two connecting shafts 121 symmetrically fixedly connected to the inner wall of the housing 1, and a support frame 122 is rotatably connected between the two connecting shafts 121. A plurality of support rollers 123 are rotatably installed inside the support frame 122. The support frame 122 is located on the inner side of the swing frame 82 and the support rollers 123 are all lower than the lower pressure roller 83. The support rollers 123 of the support frame 122 are used for rolling support of the photosensitive dry film 100. A slide groove 1221 is provided on the outer wall of the support frame 122, and a connecting plate 124 is fixedly connected to the outer wall of the swing frame 82. A convex rod is fixedly connected to the side of the connecting plate 124 close to the support frame 122 1241, the protruding rod 1241 is located in the slide groove 1221 of the support frame 122. When the lower pressure roller 83 of the swing frame 82 presses the photosensitive dry film 100 downward, the swing frame 82 synchronously drives the support frame 122 to move downward through the connecting plate 124, so that the supporting roller 123 on the support frame 122 can always support the photosensitive dry film 100. When the photosensitive dry film 100 on the dry film roller 7 is unwound, under the guidance of the guide roller 9 and the support of the support frame 122, the photosensitive dry film 100 can be rolled straightly onto the substrate 200 by the coating roller 5, thereby preventing the photosensitive dry film 100 at the tail of the dry film roller 7 from drooping downward, which increases the risk of damage to the tail photosensitive dry film 100.

[0039] Reference Figure 1 and Figure 7 As shown, a dehumidification mechanism 13 is provided on one side of the pre-tightening mechanism 10, and the dehumidification mechanism 13 includes a mounting frame 131 and a heating lamp 132. The mounting frame 131 is fixedly connected to the end of the fixing plate 101 away from the coating roller 5, and a long strip-shaped heating lamp 132 is obliquely installed on the mounting frame 131. The heating lamp 132 faces the surface of the coating roller 5. The heating lamp 132 is used to heat and dry the photosensitive dry film 100 wound on the coating roller 5 to prevent the humidity of the photosensitive dry film 100 from being too high, which will cause the film layer to absorb moisture and affect the photosensitivity and adhesion.

[0040] Reference Figure 1 and Figure 12 As shown, a smoothing mechanism 14 is provided between the two housings 1 near the dry film roller 7. The smoothing mechanism 14 includes a bracket 141 and a smoothing roller 142. The bracket 141 is laterally fixedly connected to the inner side walls of the two housings 1. Two smoothing rollers 142 are symmetrically mounted on the bracket 141 for rotation. The two smoothing rollers 142 are distributed in an "eight" shape below the bracket 141. The smoothing rollers 142 are in rolling contact with the coated photosensitive dry film 100. The smoothing rollers 142 are used to smooth the photosensitive dry film 100 in an orderly manner to reduce the risk of the photosensitive dry film 100 being offset or wrinkled.

[0041] When the lamination operation of the substrate 200 officially begins, the hub motor on the mounting shaft 51 drives the laminating roller 5 to rotate. The rotation of the laminating roller 5, on the one hand, pulls the photosensitive dry film 100 to be continuously unwound from the dry film roller 7, and on the other hand, forms a roller pressure zone with the pressure roller 2 fixed below, so that the taut photosensitive dry film 100 is continuously and evenly pressed onto the surface of the substrate 200 moving at a constant speed. In the process of the laminating roller 5 pressing down, the limiting wheel 111 at the end of the slider 103 of the pre-tightening roller 104 slides along the wedge plate 11 fixed on the side wall of the casing 1 and finally breaks away from the contact, and the pre-tightening roller 104 is blocked by the wedge plate 11. 104, under the action of the restoring force of the internal spring 2 105, immediately moves toward the surface of the laminating roller 5, and presses the photosensitive dry film 100 located between the two tightly and stably against the roller surface of the laminating roller 5. This constant pressing force can ensure that the photosensitive dry film 100 always maintains good contact with the laminating roller 5 during the unwinding process, especially when it is near the end of the material roll, and effectively prevents wrinkles or deviations caused by the relaxation of the film material; in the process of the pressing roller 83 pressing down, the swing frame 82 can drive the lower part through the connecting plate 124 and the protruding rod 1241 embedded in the slide groove 1221 of the support frame 122 The support frame 122 moves downward as a whole, which enables the multiple support rollers 123 arranged at intervals on the support frame 122 to always remain below the photosensitive dry film 100 strip, providing a continuous rolling support platform for the photosensitive dry film 100 strip. Especially when the dry film roller 7 is exhausted and the tail of the film loses its source of traction, it can effectively prevent the tail dry film from sagging due to its own weight and causing the risk of tearing or being drawn into the equipment, ensuring that the tail film can also be smoothly and straightly guided to the roller 9 nip area for lamination; during the entire lamination strip travel path, the inclined heating lamps 132 continuously heat the photosensitive dry film 100 passing through the laminating roller 5. 0 surface radiates heat energy for gentle and effective heating and drying, removing excess moisture that may affect the photosensitivity and adhesion. In addition, near the exit of the dry film roller 7, two smoothing rollers 142 are symmetrically arranged at a specific angle (such as an eight-shaped shape) and continuously roll in contact with the surface of the traveling photosensitive dry film 100 strip. By utilizing their specific angle and rolling friction, they exert a force to expand the film in both sides, smoothing out any minor wrinkles that may occur and correcting the deviation trend in real time, thereby maximizing the flatness and position accuracy of the film before entering the key lamination area, and ultimately ensuring high-quality and low-waste lamination operations.

[0042] A method for adjusting the lamination pressure of a photosensitive dry film, comprising the following steps: S1. Push the substrate 200 to be laminated from the side of the pressure roller 2 of the housing 1, pass through the pressure roller 2 in sequence and be transferred to the conveying roller 21. At the same time, the photosensitive dry film 100 on the dry film roller 7 passes through the guide roller 9 and the pressing mechanism 8 in sequence, bypasses the laminating roller 5, and is guided downward to the rolling area between the laminating roller 5 and the pressure roller 2; S2. Start the hydraulic cylinder 6 to push the laminating roller 5 downward. The rubber ring 502 on the laminating roller 5 can elastically press the photosensitive dry film 100 onto the surface of the substrate 200. The limiting wheel 111 of the pre-tightening roller 104 is released from the limit of the wedge plate 11. Under the action of the second spring 105, the photosensitive dry film 100 is pressed against the surface of the laminating roller 5. At the same time, the electric push rod 86 retracts, releasing the support limit of the swing frame 82. The swing frame 82 swings around the bearing seat 81 under the tension of the tension spring 85, so that the lower pressure roller 83 presses the photosensitive dry film 100 and maintains a stable tension. The support frame 122 continues to support the photosensitive dry film 100. S3. The laminating roller 5 rotates under the drive of the hub motor, driving the photosensitive dry film 100 to continuously adhere to the surface of the substrate 200 for lamination. During the process, the heating lamp 132 heats and dehumidifies the photosensitive dry film 100 on the laminating roller 5, and cooperates with the smoothing roller 142 to smooth the photosensitive dry film 100 to prevent deviation and wrinkling.

Claims

1. A device for regulating the lamination pressure of a photosensitive dry film, comprising: The housing (1) is two parallel frames; the pressure roller (2) is rotatably mounted between the housings (1); Conveying rollers (21), provided with no less than two and horizontally arranged between the housings (1); Its characteristics include: A guide frame (3) is fixedly connected to the housing (1); a sliding frame (4) is slidably connected to the feed side of the housing (1) through the guide frame (3); a mounting shaft (51) is fixedly connected between the two sliding frames (4); a laminating roller (5) is rotatably mounted on the mounting shaft (51); a hydraulic cylinder (6) is fixedly provided on the top of the housing (1), and a piston rod of the hydraulic cylinder (6) is connected to the corresponding sliding frame (4); A dry film roller (7) is arranged on a side of the housing (1) away from the laminating roller (5), and a photosensitive dry film (100) is wound on the dry film roller (7); A pressing mechanism (8) is provided between the housings (1); The pressing mechanism (8) comprises: a bearing seat (81) fixedly arranged on the inner side of the housing (1); a swing frame (82) rotatably arranged between the housings (1) through the bearing seat (81); a pressing roller (83) rotatably connected to one end of the swing frame (82) away from the bearing seat (81); a positioning shaft (84) fixedly arranged between the housings (1), the swing frame (82) being connected to the positioning shaft (84) via a tension spring (85); and an electric push rod (86) fixedly arranged on the inner side wall of the housing (1), the push rod limit of the electric push rod (86) corresponding to the swing frame (82).

2. A photosensitive dry film laminating pressure regulating device according to claim 1, characterized in that: The coating roller (5) comprises a roller body (501), a rubber ring body (502) and a liquid storage frame (503), wherein the roller body (501) is rotatably mounted on the mounting shaft (51), and the mounting shaft (51) is provided with a hub motor for driving the roller body (501), and a rubber ring body (502) is provided on the outer sealing sleeve of the roller body (501), and a ring-shaped liquid storage frame (503) is fixedly connected to one side of the roller body (501) close to the rubber ring body (502), and the liquid storage frame (503) and the rubber ring body (502) are interconnected and kept sealed, and the cavities of the rubber ring body (502) and the liquid storage frame (503) on the roller body (501) are filled with hydraulic oil, and the liquid storage frame (503) is provided with a plurality of rubber rings (502) on the outer sealing sleeve of the roller body (501). ) is connected to a piston plate (504) via a connecting rod in a sliding manner on the side away from the rubber ring body (502); the piston plate (504) and the liquid storage frame (503) are in sealing and sliding cooperation; a spring (505) is provided between the connecting rod of the liquid storage frame (503) and the piston plate (504); a mounting rod (506) is fixedly connected to the outer wall of the liquid storage frame (503) away from the rubber ring body (502); an adjusting plate (507) is slidably connected to the mounting rod (506); the adjusting plate (507) is abutted against the connecting rod end of the piston plate (504); a screw rod (508) is rotatably provided on the outer wall of the liquid storage frame (503); the screw rod (508) and the adjusting plate (507) are in threaded cooperation.

3. A photosensitive dry film laminating pressure regulating device according to claim 2, characterized in that: The dry film roller (7) is detachably arranged between the two housings (1). The dry film roller (7) facilitates the installation of a roll of material wound with the photosensitive dry film (100) on the housing (1). No less than two guide rollers (9) are rotatably connected to the inner wall of the housing (1) between the pressing mechanism (8) and the dry film roller (7). A gap is left between the guide rollers (9) for the photosensitive dry film (100) to pass through. The guide rollers (9) are used to guide the photosensitive dry film (100). A limiting rod (87) is fixedly connected to the inner wall of the housing (1) between the swing frame (82) and the conveying roller (21). The limiting rod (87) is used to limit the swing frame (82).

4. A device for adjusting the lamination pressure of a photosensitive dry film according to claim 3, characterized in that: The coating roller (5) is provided with a pre-tightening mechanism (10) around one side of the photosensitive dry film (100), and the pre-tightening mechanism (10) includes fixed plates (101) symmetrically fixedly connected to the two ends of the mounting shaft (51), and guide rods (102) are fixedly connected in the two fixed plates (101), and sliders (103) are slidably connected to the guide rods (102) of the two fixed plates (101), and a pre-tightening roller (104) is rotatably installed between the two sliders (103), and a spring 2 (105) is provided between the fixed plate (101) and the slider (103).

5. A device for regulating the lamination pressure of a photosensitive dry film according to claim 4, characterized in that: A wedge plate (11) is symmetrically fixedly provided on the side wall of the housing (1) close to the laminating roller (5), and a limiting wheel (111) is rotatably provided on the sliders (103) at both ends of the pre-tightening roller (104), and the wedge plate (11) contacts and blocks the limiting wheel (111).

6. A device for regulating the lamination pressure of a photosensitive dry film according to claim 5, characterized in that: A support mechanism (12) is provided between the two housings (1), the support mechanism (12) comprising two connecting shafts (121) symmetrically fixedly connected to the inner wall of the housing (1), a support frame (122) is rotatably connected between the two connecting shafts (121), a plurality of support rollers (123) are rotatably installed inside the support frame (122), the support frame (122) is located inside the swing frame (82), and the support rollers (123) are all lower than the lower pressure roller ( 83), the support roller (123) of the support frame (122) is used for rolling support of the photosensitive dry film (100), the outer wall of the support frame (122) is provided with a slide groove (1221), the outer wall of the swing frame (82) is fixedly connected with a connecting plate (124), the side of the connecting plate (124) close to the support frame (122) is fixedly connected with a protruding rod (1241), and the protruding rod (1241) is located in the slide groove (1221) of the support frame (122).

7. A device for regulating the lamination pressure of a photosensitive dry film according to claim 6, characterized in that: A dehumidification mechanism (13) is provided on one side of the pre-tightening mechanism (10), and the dehumidification mechanism (13) includes a mounting frame (131) and a heating lamp (132). The mounting frame (131) is fixedly connected to one end of the fixing plate (101) away from the laminating roller (5). A long strip-shaped heating lamp (132) is obliquely mounted on the mounting frame (131), and the heating lamp (132) faces the surface of the laminating roller (5).

8. A device for regulating the lamination pressure of a photosensitive dry film according to claim 7, characterized in that: A smoothing mechanism (14) is provided between the two housings (1) near the dry film roller (7), and the smoothing mechanism (14) includes a bracket (141) and a smoothing roller (142). The inner side walls of the two housings (1) are laterally fixedly connected with the bracket (141), and two smoothing rollers (142) are symmetrically mounted on the bracket (141) for rotation. The two smoothing rollers (142) are distributed in an "eight" shape below the bracket (141).

9. A method for adjusting the lamination pressure of a photosensitive dry film, using the device for adjusting the lamination pressure of a photosensitive dry film according to claim 8, characterized in that: The specific steps are as follows: S1, push the substrate (200) to be coated from the side of the pressure roller (2) of the housing (1), pass through the pressure roller (2) in sequence and be transferred to the conveying roller (21), and at the same time, pass the photosensitive dry film (100) on the dry film roller (7) through the guide roller (9) and the pressing mechanism (8) in sequence, and after bypassing the coating roller (5), guide it downward to the rolling area between the coating roller (5) and the pressure roller (2); S2, start the hydraulic cylinder (6) to push the laminating roller (5) downward, the rubber ring (502) on the laminating roller (5) can elastically press the photosensitive dry film (100) to the surface of the substrate (200), the limiting wheel (111) of the pre-tightening roller (104) is separated from the limit of the wedge plate (11), and the photosensitive dry film (100) is pressed against the surface of the laminating roller (5) under the action of the second spring (105), and at the same time the electric push rod (86) retracts to release the support limit of the swing frame (82), and the swing frame (82) swings around the bearing seat (81) under the tension of the tension spring (85), so that the lower pressure roller (83) presses the photosensitive dry film (100) and maintains a stable tension, and the support frame (122) continues to support the photosensitive dry film (100); S3. The coating roller (5) rotates under the drive of the hub motor, driving the photosensitive dry film (100) to continuously adhere to the surface of the substrate (200) for coating operation. During the process, the heating lamp (132) heats and dehumidifies the photosensitive dry film (100) on the coating roller (5), and cooperates with the smoothing roller (142) to smooth the photosensitive dry film (100).

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