Flattening device for circuit board processing

Abstract

The utility model discloses a flattening device for circuit board processing, which comprises a main body, a positioning transportation mechanism, a pre-rolling mechanism and a gap adjusting mechanism, and is characterized in that the positioning transportation mechanism comprises a positioning rail, a first connecting rod, a connecting frame, a driving gear and a positioning motor, and the mechanism can realize accurate positioning of a circuit board; the pre-rolling mechanism comprises a flexible roller, a connecting gear, a transmission belt, a driving motor and a fixed roller, and can realize primary flexible flattening of the circuit board; the gap adjusting mechanism comprises an adjusting support, an adjusting roller, a lifting motor, a two-way lead screw, a second connecting rod and a sliding block. The gap adjusting mechanism can adjust the gap between the adjusting roller and the fixed roller.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a flattening device for circuit board processing. Background Art

[0002] Flattening can ensure the flatness of the circuit board surface so that it meets the design requirements. During the components and soldering process on the circuit board, the flatness of the surface is crucial for the correct installation of components and the quality of soldering.

[0003] In the traditional process of flattening circuit boards, they are often placed directly on a transmission mechanism and then flattened. There is no positioning in the process, or even if the positioning is done manually without the help of any tools, there will still be problems in the placement process. Secondly, the flattening process is too direct for the circuit board, which can easily lead to uneven stress during the processing, easy damage to the circuit board, and a short service life. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a flattening device for processing a circuit board.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flattening device for circuit board processing, comprising a main body, a positioning and transportation mechanism, a pre-rolling mechanism and a gap adjustment mechanism, the positioning and transportation mechanism comprising a positioning rail, a first connecting rod, a connecting frame, a driving gear and a positioning motor, the positioning rail is installed inside the main body and is slidably connected to the main body, the two ends of the first connecting rod are respectively rotatably connected to the connecting frame and the positioning rail, the connecting frame is installed inside the main body and is rotatably connected to the main body, the driving gear is meshed with the connecting frame, the positioning motor is fixedly installed inside the main body and the output end of the positioning motor is fixedly connected to the driving gear, a positioning assembly is arranged inside the positioning rail, the positioning assembly comprises a positioning roller and a storage table, the positioning roller is rotatably connected to the positioning rail, and the storage table is arranged at the bottom of the positioning rail.

[0008] Preferably, the pre-rolling mechanism includes a flexible roller, a connecting gear, a transmission belt, a driving motor and a fixed roller, the flexible roller is installed inside the main body and is rotatably connected to the main body, the connecting gear is fixedly installed at both ends of the flexible roller, the transmission belt is fixedly installed on the flexible roller and the fixed roller, the fixed roller is fixedly connected to the output end of the driving motor, and the fixed roller is installed inside the main body and is rotatably connected to the main body, and the driving motor is fixedly installed on one side of the main body.

[0009] It is further preferred that the gap adjustment mechanism includes an adjusting bracket, an adjusting roller, a lifting motor, a bidirectional screw, a second connecting rod and a slider, the adjusting bracket is installed on the main body and is slidably connected to the main body, the adjusting roller is installed on the adjusting bracket and is rotatably connected to the adjusting bracket, the lifting motor is fixedly installed on the main body and fixedly connected to one end of the bidirectional screw, the slider is installed on the bidirectional screw and engages with the bidirectional screw thread, and the two ends of the second connecting rod are respectively fixedly connected to the slider and the adjusting bracket.

[0010] It is further preferred that a fixing rod is provided inside the main body, the positioning rail is slidably connected to the fixing rod, a slide groove is provided on the main body, and the sliding roller slides inside the slide groove to facilitate adjustment of the gap suitable for the thickness of the circuit board to be flattened.

[0011] It is further preferred that transmission grooves are provided on the flexible roller and the fixed roller, and the transmission belt is placed inside the transmission grooves to facilitate the operation of the pre-rolling mechanism.

[0012] It is further preferred that a heating plate is provided inside the main body, and the heating plate is fixedly installed in the middle of the positioning and transporting mechanism and the flexible roller to facilitate uniform heating of the circuit board.

[0013] In a further embodiment, a soft connection layer is provided on the flexible roller, and the circuit board slides in the soft connection layer, so as to facilitate the primary flattening of the heated circuit board.

[0014] It is further preferred that a spring and a through rod are installed inside the main body, and both ends of the spring are fixedly connected to the lifting bracket and the main body respectively. The through rod is fixedly installed on the main body and slidably connected to the lifting bracket to facilitate the operation of the gap adjustment mechanism and prevent the adjustment mechanism from getting stuck.

[0015] In a further embodiment, a driven gear is provided at the bottom of the connecting frame, and the driven gear is meshed and connected with the driving gear to facilitate adjustment of the positioning and transporting mechanism.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a circuit board processing flattening device, which has the following beneficial effects:

[0018] In the utility model, a positioning and transporting mechanism is provided, and with the cooperation of the positioning rail, the first connecting rod, the connecting frame, the driving gear and the positioning motor as well as the positioning roller and the storage table and other components, the device can realize accurate positioning of the circuit board, thereby avoiding damage to the circuit board during the flattening process due to incorrect placement.

[0019] In the utility model, a pre-rolling mechanism is provided, and with the cooperation of components such as a heating plate, a flexible roller, a connecting gear, a transmission belt, a driving motor and a fixed roller, the device can achieve the initial flexible flattening of the circuit board, thereby ensuring the flattening effect without damaging the circuit board.

[0020] In the utility model, a gap adjustment mechanism is provided, and with the cooperation of the adjustment bracket, the adjustment roller, the lifting motor, the bidirectional lead screw, the second connecting rod and the slider, the device can adjust the gap between the adjustment roller and the fixed roller, thereby ensuring that circuit boards of different models can be flattened. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a flattening device for circuit board processing in the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the positioning and transportation mechanism of the utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the pre-rolling mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the gap adjustment mechanism of the utility model;

[0025] Figure 5 This is a cross-sectional view of the internal structure of the gap adjustment mechanism of the utility model.

[0026] In the figure: 1. main body; 2. positioning rail; 3. first connecting rod; 4. connecting frame; 5. driving gear; 6. positioning motor; 7. positioning roller; 8. storage table; 9. flexible roller; 10. connecting gear; 11. transmission belt; 12. driving motor; 13. fixed roller; 14. adjusting bracket; 15. adjusting roller; 16. lifting motor; 17. two-way lead screw; 18. second connecting rod; 19. slider; 20. fixed rod; 21. slide groove; 22. transmission groove; 23. heating plate; 24. soft connection layer; 25. spring; 26. through rod; 27. driven gear. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1:

[0029] See also Figure 1-5, a flattening device for circuit board processing, comprising a main body 1, a positioning and transportation mechanism, a pre-rolling mechanism and a gap adjustment mechanism, the positioning and transportation mechanism comprising a positioning rail 2, a first connecting rod 3, a connecting frame 4, a driving gear 5 and a positioning motor 6, the positioning rail 2 is installed inside the main body 1 and is slidably connected to the main body 1, the two ends of the first connecting rod 3 are respectively rotatably connected to the connecting frame 4 and the positioning rail 2, the connecting frame 4 is installed inside the main body 1 and is rotatably connected to the main body 1, the driving gear 5 is meshedly connected to the connecting frame 4, the positioning motor 6 is fixedly installed inside the main body 1 and the output end of the positioning motor 6 is fixedly connected to the driving gear 5, a positioning assembly is arranged inside the positioning rail 2, the positioning assembly comprises a positioning roller 7 and a storage table 8, the positioning roller 7 is rotatably connected to the positioning rail 2, and the storage table 8 is arranged at the bottom end of the positioning rail 2.

[0030] In this embodiment, the positioning and transportation mechanism includes a positioning rail 2, a first connecting rod 3, a connecting frame 4, a driving gear 5 and a positioning motor 6. When in use, the positioning motor 6 is driven, and the positioning motor 6 rotates the driving gear 5, thereby causing the driven gear 27 meshing with the driving gear 5 to rotate accordingly, driving the connecting frame 4 to rotate, and the rotating connecting frame 4 pulls the first connecting rod 3, so that the positioning rail 2 slides on the fixed rod 20. When it slides to a suitable position, the circuit board to be flattened is placed on the storage table 8 on the positioning rail 2. At this time, the two ends of the circuit board are in contact with the positioning rollers 7, pushing the circuit board into the inside of the main body 1 to start the next process.

[0031] In this embodiment, the pre-rolling mechanism includes a flexible roller 9, a connecting gear 10, a transmission belt 11, a driving motor 12 and a fixed roller 13. When in use, after the circuit board is heated by the heating plate 23 inside the main body 1, it contacts the soft connection layer 24 on the flexible roller 9 to increase the friction contact. At this time, the driving motor 12 drives the fixed roller 13 to rotate inside the main body 1, and the transmission belt 11 installed in the transmission groove 22 between the fixed roller 13 and the flexible roller 9 starts to work, driving the flexible roller 9 to rotate, and the connecting gears 10 at both ends of the flexible roller 9 are engaged with each other, so that the two flexible rollers 9 rotate synchronously. At this time, the heated circuit board slides inside the soft connection layer 24 between the two flexible rollers 9 and undergoes pre-flattening.

[0032] In this embodiment, the gap adjustment mechanism includes an adjustment bracket 14, an adjustment roller 15, a lifting motor 16, a bidirectional lead screw 17, a second connecting rod 18 and a slider 19. When in use, after the circuit board is initially squeezed by the flexible roller 9, it comes to the top of the fixed roller 13. At this time, according to the thickness of the circuit board to be flattened, the gap between the fixed roller 13 and the adjustment roller 15 is adjusted, the lifting motor 16 is driven, the bidirectional lead screw 17 rotates, and the two sliders 19 move toward each other on the bidirectional lead screw 17. The second connecting rod 18 rotatably connected thereto is subjected to the position change of the slider 19, driving the adjustment bracket 14 to rise, so that the height position of the adjustment roller 15 also changes accordingly. In this process, the two ends of the adjustment roller 15 slide inside the slide groove 21, and the adjustment bracket 14 squeezes the spring 25 as the position changes, and slides on the through rod 26 inside the main body 1. When the flattening is completed, the lifting motor 16 is driven to return to the original position according to all the above components, and the adjustment bracket 14 returns to the upward elastic force under the action of the spring 25 and the through rod 26 to prevent the gap adjustment mechanism from being stuck during operation.

[0033] Embodiment 2:

[0034] To sum up, when in use, the positioning motor 6 is driven, and the positioning motor 6 rotates the active gear 5, so that the driven gear 27 meshing with the active gear 5 rotates accordingly, driving the connecting frame 4 to rotate, and the rotating connecting frame 4 pulls the first connecting rod 3, so that the positioning rail 2 slides on the fixed rod 20. After sliding to a suitable position, the circuit board to be flattened is placed on the storage table 8 on the positioning rail 2. At this time, both ends of the circuit board are in contact with the positioning rollers 7, and the circuit board is pushed into the main body 1 to start the next process. After the circuit board is heated by the heating plate 23 inside the main body 1, it contacts the soft connection layer 24 on the flexible roller 9, increasing the friction contact, and is squeezed and transported. At this time, the driving motor 12 drives to drive the fixed roller 13 to rotate inside the main body 1, and the transmission belt 11 installed in the transmission groove 22 of the fixed roller 13 and the flexible roller 9 starts to work, driving the flexible roller 9 to rotate, and the connecting gears 10 at both ends of the flexible roller 9 are meshed with each other, so that the two flexible rollers 9 rotate synchronously. At this time, the heated circuit board is on the two The soft connection layer 24 between the flexible rollers 9 slides inside, so that the circuit board undergoes pre-flattening. After the pre-flattening, the final flattening process begins. At this time, as the flexible roller 9 is conveyed to the top of the fixed roller 13, the gap between the fixed roller 13 and the adjusting roller 15 is adjusted according to the thickness of the circuit board to be flattened, the lifting motor 16 is driven, and the bidirectional lead screw 17 rotates. The two sliders 19 move toward each other on the bidirectional lead screw 17, and the second connecting rod 18 rotatably connected thereto is affected by the position change of the slider 19, driving the adjusting bracket 14 to rise, so that the height position of the adjusting roller 15 also changes accordingly. In this process, the two ends of the adjusting roller 15 slide inside the slide groove 21, and the adjusting bracket 14 squeezes the spring 25 as the position changes, and slides on the through rod 26 inside the main body 1. When the flattening is completed, the lifting motor 16 is driven to return to the original position according to all the above components, and the adjusting bracket 14 returns to the upward elastic force under the action of the spring 25 and the through rod 26 to prevent the gap adjustment mechanism from getting stuck during operation.

[0035] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flattening device for processing a circuit board, comprising a main body (1), a positioning and transporting mechanism, a pre-rolling mechanism and a gap adjustment mechanism, characterized in that: The positioning and transporting mechanism comprises a positioning rail (2), a first connecting rod (3), a connecting frame (4), a driving gear (5) and a positioning motor (6); the positioning rail (2) is mounted inside the main body (1) and is slidably connected to the main body (1); the two ends of the first connecting rod (3) are rotatably connected to the connecting frame (4) and the positioning rail (2) respectively; the connecting frame (4) is mounted inside the main body (1) and is rotatably connected to the main body (1); the driving gear (5) is meshingly connected to the connecting frame (4); the positioning motor (6) is fixedly mounted inside the main body (1) and the output end of the positioning motor (6) is fixedly connected to the driving gear (5); a positioning assembly is arranged inside the positioning rail (2); the positioning assembly comprises a positioning roller (7) and a storage platform (8); the positioning roller (7) is rotatably connected to the positioning rail (2); and the storage platform (8) is arranged at the bottom end of the positioning rail (2).

2. A circuit board processing flattening device according to claim 1, characterized in that: The pre-rolling mechanism comprises a flexible roller (9), a connecting gear (10), a transmission belt (11), a driving motor (12) and a fixed roller (13); the flexible roller (9) is installed inside the main body (1) and is rotatably connected to the main body (1); the connecting gear (10) is fixedly installed at both ends of the flexible roller (9); the transmission belt (11) is fixedly installed on the flexible roller (9) and the fixed roller (13); the fixed roller (13) is fixedly connected to the output end of the driving motor (12); the fixed roller (13) is installed inside the main body (1) and is rotatably connected to the main body (1); and the driving motor (12) is fixedly installed on one side of the main body (1).

3. A circuit board processing flattening device according to claim 1, characterized in that: The gap adjustment mechanism comprises an adjustment bracket (14), an adjustment roller (15), a lifting motor (16), a bidirectional lead screw (17), a second connecting rod (18) and a slider (19); the adjustment bracket (14) is mounted on the main body (1) and is slidably connected to the main body (1); the adjustment roller (15) is mounted on the adjustment bracket (14) and is rotationally connected to the adjustment bracket (14); the lifting motor (16) is fixedly mounted on the main body (1) and is fixedly connected to one end of the bidirectional lead screw (17); the slider (19) is mounted on the bidirectional lead screw (17) and is threadedly engaged with the bidirectional lead screw (17); and both ends of the second connecting rod (18) are fixedly connected to the slider (19) and the adjustment bracket (14) respectively.

4. A circuit board processing flattening device according to claim 3, characterized in that: A fixing rod (20) is arranged inside the main body (1), the positioning rail (2) is slidably connected to the fixing rod (20), a sliding groove (21) is arranged on the main body (1), and the adjusting roller (15) slides inside the sliding groove (21).

5. A circuit board processing flattening device according to claim 2, characterized in that: The flexible roller (9) and the fixed roller (13) are provided with a transmission groove (22), and the transmission belt (11) is placed inside the transmission groove (22).

6. A circuit board processing flattening device according to claim 1, characterized in that: A heating plate (23) is arranged inside the main body (1), and the heating plate (23) is fixedly installed in the middle position between the positioning and transporting mechanism and the flexible roller (9).

7. A circuit board processing flattening device according to claim 2, characterized in that: A soft connection layer (24) is provided on the flexible roller (9), and the circuit board slides in the soft connection layer (24).

8. A circuit board processing flattening device according to claim 3, characterized in that: A spring (25) and a through rod (26) are installed inside the main body (1); two ends of the spring (25) are fixedly connected to the adjustment bracket (14) and the main body (1) respectively; and the through rod (26) is fixedly installed on the main body (1) and is slidably connected to the adjustment bracket (14).

9. A circuit board processing flattening device according to claim 1, characterized in that: A driven gear (27) is provided at the bottom of the connecting frame (4), and the driven gear (27) is meshedly connected with the driving gear (5).

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