Multilayer high-order PCB film pressing device

Abstract

The utility model belongs to the technical field of PCB (Printed Circuit Board) processing, and discloses a multilayer high-order PCB film pressing device, which comprises a support frame, an edge pressing assembly and a shrinkage assembly, a film feeding assembly is fixed to the upper end of the supporting frame, a die pressing assembly is fixed to the upper end face of the film feeding assembly, sliding frames are fixed to the two sides of the die pressing assembly, a balance block is rotationally connected to the outer side of a rotating shaft, a blade is fixed to the lower end face of the balance block, and a shrinking assembly is fixed to the upper end of the balance block. An edge pressing assembly is arranged on the lower end face of the balance block in a sliding mode and located under the second pressing rod. By arranging the shrinking assembly, when the edge of the protective film is cut, when the protective film deviates from an original rail and the friction force between the edge pressing assembly and the protective film is changed, the shrinking assembly is triggered through increase of the friction force, and a blade can rapidly retract upwards and be separated from the protective film; therefore, the damage of the blade to the protective film under the condition that the protective film deviates is reduced.

Description

Technical Field

[0001] This disclosure belongs to the field of PCB board processing technology, specifically relating to a multilayer high-order PCB board laminating device. Background Technology

[0002] During the manufacturing process of PCBs, protective films need to be applied. Most existing film application devices use a film feeding device and a film pressing device to achieve film pressing. The structure is simple and the operation is convenient. However, the protective film is prone to folding during the film pressing process, resulting in areas on the PCB board that are not covered by the protective film, thus making the film pressing effect unsatisfactory.

[0003] During the transport of the protective film, the edges of the protective film are cut to keep it flat. However, when the protective film is dragged by external force, it deviates from its original track, causing the blade to scratch the middle of the protective film, resulting in waste of the protective film. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this disclosure is to provide a multilayer high-order PCB board lamination device, which solves the problems in the prior art.

[0005] The objective of this disclosure can be achieved through the following technical solutions:

[0006] A multilayer high-end PCB board laminating device includes: a support frame, an edge pressing assembly, and a shrinking assembly;

[0007] The upper end of the support frame is fixed with a film feeding assembly, and the upper end face of the film feeding assembly is fixed with a molding assembly. The two sides of the molding assembly are fixed with sliding frames, and the inner side of the sliding frame is fixed with a rotating shaft. The outer side of the rotating shaft is rotatably connected with a balance block. The lower end face of the balance block is fixed with a blade, and the upper end of the balance block is fixed with a shrinking assembly.

[0008] The shrinkage assembly includes a first pressure rod, a second pressure rod, a flow channel, and a support spring. The first pressure rod and the second pressure rod are fixed on the upper end face of the balance block, and the first pressure rod and the second pressure rod are symmetrically arranged at both ends of the balance block. The first pressure rod is located directly above the blade. The upper ends of the first pressure rod and the second pressure rod are fixed with a flow channel, and the upper end of the second pressure rod is fixed with a support spring.

[0009] The lower end face of the balance block is slidably provided with a pressing edge assembly, and the pressing edge assembly is located directly below the second pressing rod.

[0010] In some disclosures, the upper end face of the support frame is provided with a sliding groove, and the lower end face of the sliding frame is fixed with a protrusion adapted to the sliding groove, and the moving path of the protrusion is adapted to the moving path of the sliding groove.

[0011] In some disclosures, the sliding frames are arranged symmetrically in two sets about the vertical center line of the support frame. The pressing mold assembly includes a bracket and a pressing cylinder. The upper ends of the two sliding frames are fixed with brackets, and the end of the bracket away from the sliding frame is fixed with a pressing cylinder.

[0012] In some disclosures, the film feeding assembly includes a conveyor belt, a drive roller, and a driven roller, with the drive roller and driven roller fixed at both ends of the support frame, and the conveyor belt surrounding the outer sides of the drive roller and driven roller, with the driven roller located at one end close to the molding assembly.

[0013] In some disclosures, a positioning groove is provided on the side of the sliding frame away from the support frame, a support rod is slidably arranged inside the positioning groove, and a baffle is fixed at the end of the support rod away from the sliding frame, and a limit bolt is fixed on the upper end face of the positioning groove.

[0014] In some disclosures, the pressing assembly includes a support shell, a roller, and a top rod. The lower end face of the balance block is provided with a sliding groove, and the top rod is slidably arranged inside the sliding groove. The lower end of the top rod is fixed to the support shell, and the lower end of the support shell is rotatably arranged with a roller.

[0015] In some disclosures, the first pressure rod includes an outer tube, a push rod, and a rotating seat. The upper end face of the balance block is fixed with the rotating seat, and the upper end of the rotating seat is rotatably connected to the push rod. The upper end of the push rod is sealed and slidably fitted with the outer tube.

[0016] In some disclosures, a stop bar is fixed to the inner wall of the sliding frame, and the stop bar is located on the side of the balance block closer to the blade. When both ends of the balance block are on the same horizontal plane, the lower end face of the balance block is tangent to the stop bar.

[0017] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0018] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them;

[0019] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0020] Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields.

[0021] A sliding connection is a connection between parts that allows the parts to slide against each other.

[0022] The beneficial effects of this disclosure are:

[0023] By setting a shrinkage component, when the edge of the protective film is being cut, if the protective film deviates from its original track, the friction between the edge pressing component and the protective film changes. The increased friction triggers the shrinkage component, allowing the blade to quickly retract upward and detach from the protective film, thereby reducing damage to the protective film caused by the blade deviating from its original track. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this disclosure;

[0026] Figure 2 This is a schematic diagram of the connection structure between the pressure film assembly and the sliding frame according to an embodiment of this disclosure;

[0027] Figure 3 This is a schematic diagram of the overall structure of the sliding frame according to an embodiment of the present disclosure;

[0028] Figure 4 This is an embodiment of the present disclosure. Figure 3 A top view diagram;

[0029] Figure 5 This is an embodiment of the present disclosure. Figure 4 Schematic diagram of AA section in the middle;

[0030] Figure 6 This is a schematic diagram of the overall structure of the shrinkage component according to an embodiment of the present disclosure.

[0031] In the diagram: 1. Support frame; 101. Slide groove; 2. Film feeding assembly; 21. Conveyor belt; 22. Drive roller; 23. Driven roller; 3. Pressing mold assembly; 31. Bracket; 32. Pressing cylinder; 4. Sliding frame; 41. Protrusion; 42. Support rod; 43. Baffle; 44. Limiting bolt; 401. Positioning groove; 402. Knife groove; 403. Stop bar; 5. Rotating shaft; 6. Balance block; 61. Sliding groove; 7. Blade; 8. Edge pressing assembly; 81. Support shell; 82. Roller; 83. Top rod; 9. Shrinkage assembly; 91. First pressure rod; 92. Second pressure rod; 93. Flow channel; 94. Support spring; 911. Outer tube; 912. Push rod; 913. Rotating seat. Detailed Implementation

[0032] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0033] Please refer to Figures 1 to 6 A multilayer high-end PCB board laminating device includes: a support frame 1, an edge pressing assembly 8, and a shrinking assembly 9;

[0034] The upper end of the support frame 1 is fixed with a film feeding assembly 2, and the upper end face of the film feeding assembly 2 is fixed with a molding assembly 3. The two sides of the molding assembly 3 are fixed with sliding frames 4, and the inner side of the sliding frame 4 is fixed with a rotating shaft 5. The outer side of the rotating shaft 5 is rotatably connected with a balance block 6. The lower end face of the balance block 6 is fixed with a blade 7, and the upper end of the balance block 6 is fixed with a shrinking assembly 9.

[0035] The shrinkage assembly 9 includes a first pressure rod 91, a second pressure rod 92, a flow channel 93, and a support spring 94. The upper end face of the balance block 6 is fixed with the first pressure rod 91 and the second pressure rod 92, and the first pressure rod 91 and the second pressure rod 92 are symmetrically arranged at both ends of the balance block 6. The first pressure rod 91 is located directly above the blade 7. The upper end of the first pressure rod 91 and the second pressure rod 92 is fixed with the flow channel 93, and the upper end of the second pressure rod 92 is fixed with the support spring 94.

[0036] The lower end face of the balance block 6 is slidably provided with the pressing edge component 8, and the pressing edge component 8 is located directly below the second pressing rod 92.

[0037] In use, the protective film is laid flat on the upper surface of the support frame 1, and the side edge of the protective film is placed directly below the pressing assembly 8. At this time, the support spring 94 is in a compressed state, and the bottom of the shrinking assembly 9 is in contact with the upper surface of the protective film. At the same time, the lowest point of the blade 7 at the other end of the balance block 6 is lower than the lower surface of the protective film, so that the protective film passes through the lower end of the pressing assembly 8 first, making the protective film smooth. When the excess edge of the protective film passes through the blade 7, it is cut by the blade 7, which improves the flatness of the edge of the protective film during PCB board molding. When the protective film is suddenly dragged by external force, the conveying direction of the protective film will be deviated, causing the protective film to move to either side of the blade 7. If it is not corrected in time, it will... This causes a change in the relative position between the blade 7 and the edge of the protective film, resulting in the protective film being cut in the middle by the blade 7, thus wasting material. When the protective film slides laterally, the friction between the protective film and the roller 82 of the pressing assembly 8 is replaced by sliding friction, which increases the friction between the protective film and the pressing assembly 8. This causes the pressing assembly 8 to slide along the balance block 6 until it is separated from the balance block 6. At this time, the upward support force at the lower end of the balance block 6 corresponding to the second pressing rod 92 is weakened, causing the balance block 6 to rotate around the pivot 5. As the balance block 6 rotates, it causes the blade 7 at the other end of the balance block 6 to be lifted upward, thereby retracting the blade 7 and reducing the over-cutting of the protective film, which helps to save the protective film.

[0038] A PCB board can be placed below the protective film, and the protective film is adhered to the PCB board when the film pressing assembly 3 slides over the upper surface of the protective film.

[0039] The upper end face of the support frame 1 is provided with a sliding groove 101, and the lower end face of the sliding frame 4 is fixed with a protrusion 41 that is adapted to the sliding groove 101, and the moving path of the protrusion 41 is adapted to the moving path of the sliding groove 101.

[0040] Please refer to Figures 1 to 2 When in use, the bottom of the sliding frame 4 is inserted into the sliding groove 101. The position of the sliding frame 4 and the molding assembly 3 can be adjusted by manually sliding the sliding frame 4.

[0041] The sliding frame 4 is symmetrically arranged in two sets about the vertical center line of the support frame 1. The pressing mold assembly 3 includes a bracket 31 and a pressing cylinder 32. The upper end of each of the two sliding frames 4 is fixed with a bracket 31, and the end of the bracket 31 away from the sliding frame 4 is fixed with a pressing cylinder 32.

[0042] In use, the two sliding frames 4 are connected by the bracket 31, so that when one sliding frame 4 slides relative to the protective film, the bracket 31 maintains the synchronicity of the movement of the two sliding frames 4, thereby making the two ends of the protective film evenly stressed. When the pressure cylinder 32 slides from one side of the PCB board to the other side, it can first apply one edge, and then slide along the edge to the other side to apply the film, which can effectively reduce the generation of air bubbles and wrinkles under the film and improve the quality of film application.

[0043] The film feeding assembly 2 includes a conveyor belt 21, a drive roller 22 and a driven roller 23. The drive roller 22 and the driven roller 23 are fixed at both ends of the support frame 1, and the conveyor belt 21 is arranged around the outside of the drive roller 22 and the driven roller 23. The driven roller 23 is located at one end close to the molding assembly 3.

[0044] Please refer to Figure 1 When in use, the protective film is laid on top of the conveyor belt 21. When the drive roller 22 rotates, it drives the driven roller 23 to rotate, thereby moving the protective film along one side of the blade 7 to the other side, thus trimming the edge of the protective film.

[0045] The sliding frame 4 has a positioning groove 401 on the side away from the support frame 1. A support rod 42 is slidably arranged on the inner side of the positioning groove 401, and a baffle 43 is fixed at the end of the support rod 42 away from the sliding frame 4. A limit bolt 44 is fixed on the upper end surface of the positioning groove 401.

[0046] Please refer to Figures 2 to 5 In use, insert the support rod 42 on the baffle 43 into the positioning groove 401, and then tighten the limiting bolt 44 on the upper end of the sliding frame 4 until the bottom surface of the limiting bolt 44 is in contact with the upper end surface of the support rod 42. When the protective film passes through the sliding frame 4, if the width of the protective film is larger than the width of the support frame 1, the part of the protective film that exceeds the support frame 1 will rotate along the edge of the support frame 1 and cause the middle part of the protective film to bulge upward. If it is not straightened and cut directly, the protective film will be cut unevenly. When the protective film moves to the inside of the sliding frame 4, the excess part of the edge of the protective film will move. The protective film is straightened by the upper end of the support rod 42 and smoothed by the edge pressing assembly 8, which helps to further improve the uniformity of the protective film cutting. At the same time, the insertion depth of the support rod 42 can be adjusted by using the limiting bolt 44 to adjust the distance between the edge of the support frame 1 and the inner wall of the baffle 43, thereby improving the adaptability of the device and accommodating protective films of different widths. Furthermore, straightening the protective film only before cutting helps to reduce the length of the sliding frame 4, making the layout of the entire equipment more compact, and also helps to reduce the footprint of the equipment and reduce production costs.

[0047] The pressing assembly 8 includes a support shell 81, a roller 82, and a push rod 83. The lower end face of the balance block 6 is provided with a sliding groove 61, and the push rod 83 is slidably arranged inside the sliding groove 61. The lower end of the push rod 83 is fixed to the support shell 81, and the lower end of the support shell 81 is rotatably arranged with the roller 82.

[0048] Please refer to Figures 5 to 6 In use, when both ends of the balance block 6 are on the same horizontal plane, the top rod 83 at the upper end of the support shell 81 is inserted into the sliding groove 61, and the direction of the sliding groove 61 is parallel to the central axis of the roller 82. The lower end face of the roller 82 is in contact with the upper end face of the protective film. When the protective film is conveyed on the conveyor belt 21, the friction between the protective film and the roller 82 causes the roller 82 to rotate around the central axis of the roller 82. At this time, the friction between the protective film and the roller 82 is rolling friction. When the protective film is pulled in the direction of the central axis of the roller 82, the rolling friction between the protective film and the roller 82 changes to sliding friction, thereby increasing the friction between the protective film and the roller 82. This causes the pressing assembly 8 to slide along the sliding groove 61 to the end away from the protective film until the top rod 83 disengages from the sliding groove 61, thereby weakening the supporting force at the lower end of the balance block 6 and facilitating the rotation of the balance block 6.

[0049] The first pressure rod 91 includes an outer tube 911, a push rod 912, and a rotating seat 913. The upper end face of the balance block 6 is fixed with the rotating seat 913, and the upper end of the rotating seat 913 is rotatably connected to the push rod 912. The upper end of the push rod 912 is sealed and slidably fitted with the outer tube 911.

[0050] Please refer to Figures 5 to 6In use, the rotating seat 913 at the lower end of the push rod 912 is fixed to the upper end face of the balance block 6. When the balance block 6 rotates, the rotating seat 913 prevents interference between the balance block 6 and the push rod 912, thus maintaining the smooth rotation of the balance block 6. Simultaneously, the outer tube 911 is filled with damping fluid. The damping fluid and the push rod 912 exert downward pressure on the balance block 6 under the influence of gravity. When the protective film passes under the blade 7, it reduces the upward tilting of the blade 7, helping to maintain the stability of the blade 7 and thus improving the uniformity and accuracy of the protective film cutting. Meanwhile, the first pressure rod 91 forms a communication structure with the second pressure rod 92 through the flow channel 93. The second pressure rod 92... When the push rod 912 slides downward, causing the balance block 6 to rotate clockwise, the balance block 6 pushes the push rod 912 in the first pressure rod 91 to move upward, and the damping fluid in the first pressure rod 91 enters the second pressure rod 92 through the flow channel 93, thereby reducing the pressure of the first pressure rod 91 on the balance block 6. At the same time, after the damping fluid enters the second pressure rod 92, the pressure applied by the second pressure rod 92 on the balance block 6 increases, which can reduce the possibility of the balance block 6 reversing and reduce the possibility of the blade 7 falling on the protective film again. Thus, after the support spring 94 returns to its original state, the damping fluid can reduce the kinetic energy of the balance block 6 through its viscous resistance, shorten the wobbling time of the balance block 6, and make the blade 7 lift more smoothly.

[0051] The inner wall of the sliding frame 4 is fixed with a stop bar 403, and the stop bar 403 is located on the side of the balance block 6 near the blade 7. When the two ends of the balance block 6 are on the same horizontal plane, the lower end face of the balance block 6 is tangent to the stop bar 403.

[0052] Please refer to Figure 5 When in use, the position of the blade 7 is restricted by the stop bar 403 to prevent the balance block 6 from rotating excessively when rotating counterclockwise, which would cause the blade 7 to collide rigidly with the blade groove 402, thus helping to protect the blade 7.

[0053] The following description, in conjunction with the accompanying drawings and embodiments, provides a further explanation of the multilayer high-end PCB board laminating device provided by this utility model.

[0054] During assembly, insert the support rod 42 on the baffle 43 into the positioning groove 401, and then tighten the limiting bolt 44 on the upper end of the sliding frame 4 until the bottom surface of the limiting bolt 44 is in contact with the upper end surface of the support rod 42, and the protective film passes through the sliding frame 4.

[0055] In use, the protective film is laid on top of the conveyor belt 21, and PCB boards are placed at equal intervals below the protective film. When the drive roller 22 rotates, it drives the driven roller 23 to rotate, thereby driving the protective film to pass under the blade 7.

[0056] The protective film is positioned directly below the roller 82, with the support spring 94 compressed. The bottom of the shrinking assembly 9 is in contact with the upper surface of the protective film, and the lowest point of the blade 7 is below the lower surface of the protective film. The balance block 6 is in a balanced state, ensuring that when the protective film passes through the lower end of the pressing assembly 8, any excess edge is cut by the blade 7 as it passes through. When the protective film is suddenly dragged by external force, its conveying direction shifts, causing it to move to either side. The blade 7 moves, thereby causing the pressing assembly 8 to slide along the balance block 6 until it disengages from the balance block 6. At this time, the upward support force at the lower end of the balance block 6 corresponding to the second pressing rod 92 is weakened, causing the balance block 6 to rotate clockwise around the pivot 5. While the balance block 6 rotates, it causes the blade 7 at the other end of the balance block 6 to be lifted upward, thereby retracting the blade 7 and reducing the overcutting of the protective film, which helps to reduce the waste of the protective film. When the pressing assembly 3 slides over the upper surface of the protective film, it adheres the protective film to the PCB board.

[0057] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A multilayer high-order PCB board laminating device, characterized in that, include: Support frame (1), edge pressing assembly (8), and shrink assembly (9); The upper end of the support frame (1) is fixed with a film feeding assembly (2), and the upper end face of the film feeding assembly (2) is fixed with a molding assembly (3). The two sides of the molding assembly (3) are fixed with sliding frames (4), and the inner side of the sliding frame (4) is fixed with a rotating shaft (5). The outer side of the rotating shaft (5) is rotatably connected with a balance block (6). The lower end face of the balance block (6) is fixed with a blade (7), and the upper end of the balance block (6) is fixed with a shrinking assembly (9). The shrinking assembly (9) includes a first pressure rod (91), a second pressure rod (92), a flow channel (93), and a support spring (94). The upper end face of the balance block (6) is fixed with the first pressure rod (91) and the second pressure rod (92), and the first pressure rod (91) and the second pressure rod (92) are symmetrically arranged at both ends of the balance block (6). The first pressure rod (91) is located directly above the blade (7). The upper ends of the first pressure rod (91) and the second pressure rod (92) are fixed with the flow channel (93), and the upper end of the second pressure rod (92) is fixed with the support spring (94). The lower end face of the balance block (6) is slidably provided with the pressing edge assembly (8), and the pressing edge assembly (8) is located directly below the second pressing rod (92).

2. The multilayer high-order PCB board laminating device according to claim 1, characterized in that, The upper end face of the support frame (1) is provided with a sliding groove (101), and the lower end face of the sliding frame (4) is fixed with a protrusion (41) that is adapted to the sliding groove (101), and the moving path of the protrusion (41) is adapted to the moving path of the sliding groove (101).

3. The multilayer high-order PCB board laminating device according to claim 2, characterized in that, The sliding frame (4) is symmetrically arranged in two sets about the vertical center line of the support frame (1). The pressing mold assembly (3) includes a bracket (31) and a pressing cylinder (32). The upper end of each of the two sliding frames (4) is fixed with a bracket (31), and the end of the bracket (31) away from the sliding frame (4) is fixed with a pressing cylinder (32).

4. The multilayer high-order PCB board laminating device according to claim 1, characterized in that, The film feeding assembly (2) includes a conveyor belt (21), a drive roller (22) and a driven roller (23), and the drive roller (22) and the driven roller (23) are fixed at both ends of the support frame (1), and the conveyor belt (21) is arranged around the outside of the drive roller (22) and the driven roller (23), and the driven roller (23) is located at one end close to the molding assembly (3).

5. The multilayer high-order PCB board laminating device according to claim 3, characterized in that, The sliding frame (4) has a positioning groove (401) on the side away from the support frame (1). A support rod (42) is slidably arranged inside the positioning groove (401), and a baffle (43) is fixed at the end of the support rod (42) away from the sliding frame (4). A limit bolt (44) is fixed on the upper end face of the positioning groove (401).

6. The multilayer high-order PCB board laminating device according to claim 1, characterized in that, The pressing assembly (8) includes a support shell (81), a roller (82) and a top rod (83). The lower end face of the balance block (6) is provided with a sliding groove (61), and the top rod (83) is slidably arranged inside the sliding groove (61). The lower end of the top rod (83) is fixed with the support shell (81), and the lower end of the support shell (81) is rotatably arranged with the roller (82).

7. The multilayer high-order PCB board laminating device according to claim 1, characterized in that, The first pressure rod (91) includes an outer tube (911), a push rod (912), and a rotating seat (913). The upper end face of the balance block (6) is fixed with the rotating seat (913), and the upper end of the rotating seat (913) is rotatably connected to the push rod (912). The upper end of the push rod (912) is sealed and slidably fitted with the outer tube (911).

8. The multilayer high-order PCB board laminating device according to claim 5, characterized in that, The inner wall of the sliding frame (4) is fixed with a stop bar (403), and the stop bar (403) is located on the side of the balance block (6) close to the blade (7). When the two ends of the balance block (6) are on the same horizontal plane, the lower end face of the balance block (6) is tangent to the stop bar (403).

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