Flexible circuit board uncoiling machine

Abstract

The utility model provides a flexible circuit board uncoiler which comprises a supporting assembly and an unrolling assembly, the unrolling assembly comprises a rotating disc which is vertically arranged and located outside the supporting assembly, two symmetrical fixing seats are fixed on the rotating disc, and two air expansion shafts are movably arranged on the face, away from the supporting assembly, of the rotating disc. The fixed ends of the two inflatable shafts penetrate through the rotating disc and the two fixed seats respectively and extend out of the fixed seats, the fixed ends of the two inflatable shafts are rotationally connected with the two fixed seats respectively, and the parts, located outside the fixed seats, of the inflatable shafts are rotationally connected with inflatable shaft rotating joints; the supporting assembly is provided with an overturning assembly used for controlling the rotating disc to rotate. The overturning assembly comprises a main shaft horizontally arranged above the supporting assembly. The flexible circuit board coil stock automatic replacing device is high in practicability, the automatic replacing function of flexible circuit board coil stock can be achieved through the arrangement of the overturning motor, the main shaft, the rotating disc and the two air expansion shafts, and meanwhile the two tension control assemblies are arranged so that the coiling tension of the two air expansion shafts can be controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board processing, in particular to a flexible circuit board unwinding machine. Background Art

[0002] Flexible circuit boards, also known as "soft boards", are printed circuits made of flexible insulating substrates. Flexible circuits provide excellent electrical properties, can meet the design needs of smaller and higher density installations, and also help reduce assembly processes and enhance reliability. Flexible circuit boards can be bent, wound, and folded freely, can withstand millions of dynamic bends without damaging the wires, can be arranged arbitrarily according to spatial layout requirements, and can be moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection.

[0003] In the prior art, the flexible circuit board uncoiler is one of the important equipment in the processing of flexible circuit boards. However, since it does not have the function of automatically changing the coil and automatically controlling the unwinding tension, it is necessary to wait for the coil on the uncoiler to be unwound before manually replacing the next coil. At the same time, the tension needs to be manually adjusted during unwinding, which is time-consuming and labor-intensive, and seriously affects the production efficiency of the flexible circuit board and the stability of the coil when controlling the tension. Utility Model Content

[0004] The utility model discloses a flexible circuit board uncoiler, which solves the problem that the traditional flexible circuit board uncoiler does not have the function of automatically replacing the coil and automatically controlling the winding tension, and needs to rely on manual replacement of the coil and manual adjustment of the tension during production, which is time-consuming and labor-intensive, and seriously affects the production efficiency of the flexible circuit board and the stability of the coil when controlling the tension.

[0005] In order to solve the above technical problems, the utility model specifically adopts the following technical solutions:

[0006] A flexible circuit board uncoiler comprises a supporting assembly and a unwinding assembly, the unwinding assembly comprises a turntable arranged vertically and located outside the supporting assembly, two symmetrical fixed seats are fixed on the turntable, two air shafts are movably provided on a side of the turntable facing away from the supporting assembly, the fixed ends of the two air shafts respectively penetrate the turntable and the two fixed seats and extend outside the fixed seats, the fixed ends of the two air shafts are rotatably connected to the two fixed seats respectively, and the parts of the air shafts located outside the fixed seats are rotatably connected with the air shaft rotating joints; a flipping assembly for controlling the rotation of the turntable is provided on the supporting assembly, the flipping assembly comprises a main shaft arranged horizontally above the supporting assembly, one end of the main shaft is fixedly connected to the center of the turntable, and a flipping motor for driving the main shaft to rotate around its own axis is fixed on the side of the supporting assembly away from the turntable; two tension control assemblies are provided on the supporting assembly, which are respectively used to control the rotation of the two air shafts around their respective axes, and the two tension control assemblies are respectively located on both sides of the main shaft.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The flexible circuit board coil is sleeved on the air shaft, and the air shaft is inflated through the air shaft rotary joint, so that the flexible circuit board coil is fixed on the surface of the air shaft, and then the flip motor is started, and the output end of the flip motor drives the main shaft to rotate around its own axis, which can drive the turntable to rotate around the center, thereby driving the two air shafts to rotate; when one of the air shafts rotates to a specific position, the tension control component can be used to drive the air shaft to rotate around its own axis, so as to achieve the control of the rolling tension of the flexible circuit board coil; when the coil on the air shaft that is being rolled out is finished, the flip motor is used to rotate the other air shaft to the same position, and the tension control component is also used to control the rotation of this air shaft, so that the seamless connection of the coil can be achieved. The utility model has strong practicality. By setting a flip motor, a main shaft, a turntable and two air shafts, the automatic replacement function of the flexible circuit board coil can be realized. At the same time, by setting two tension control components, the rolling tension of the two air shafts can be controlled respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the structure of the flip assembly of the utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the tension control assembly of the utility model;

[0012] Figure 4 It is a top cross-sectional view of the first gear and the second gear of the utility model;

[0013] Figure 5 It is a structural schematic diagram of the adjustment component of the utility model;

[0014] In the figure:

[0015] 1. Support assembly; 11. Bottom plate; 12. Top plate; 13. Vertical plate; 14. Connecting plate; 15. Cavity; 16. Support seat; 17. Support plate; 18. Bearing seat;

[0016] 2. Roll-out assembly; 21. Turntable; 22. Fixed seat; 23. Air shaft; 24. Air shaft rotary joint; 25. Positioning sensor;

[0017] 3. Flip assembly; 31. Spindle; 32. Flip motor; 33. Flip gear; 34. High-speed rotary joint; 35. Connecting frame;

[0018] 4. Tension control assembly; 41. Motor; 42. Pneumatic clutch; 43. Clutch pulley; 44. First gear; 441. First bearing; 45. Second gear; 451. Second bearing; 46. Driven pulley; 47. Belt;

[0019] 5. Adjustment assembly; 51. Support block; 52. Connecting seat; 53. Roller; 54. Screw rod; 55. Nut. DETAILED DESCRIPTION

[0020] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 and Figure 2 As shown, the utility model provides a flexible circuit board unwinding machine, including a support component 1 and a roll-out component 2, the roll-out component 2 includes a turntable 21 vertically arranged and located outside the support component 1, two symmetrical fixed seats 22 are fixed on the turntable 21, and two air shafts 23 are movably arranged on a side of the turntable 21 away from the support component 1, the fixed ends of the two air shafts 23 respectively penetrate the turntable 21 and the two fixed seats 22 and extend to the outside of the fixed seats 22, the fixed ends of the two air shafts 23 are respectively rotatably connected to the two fixed seats 22, and the part of the air shaft 23 located outside the fixed seat 22 The support assembly 1 is rotatably connected with an inflatable shaft rotary joint 24; a flip assembly 3 for controlling the rotation of the turntable 21 is provided on the support assembly 1, and the flip assembly 3 includes a main shaft 31 horizontally arranged above the support assembly 1, one end of the main shaft 31 is fixedly connected to the center of the turntable 21, and a flip motor 32 for driving the main shaft 31 to rotate around its own axis is fixed on the side of the support assembly 1 away from the turntable 21; two tension control assemblies 4 are provided on the support assembly 1, which are respectively used to control the rotation of the two inflatable shafts 23 around their respective axes, and the two tension control assemblies 4 are respectively located on both sides of the main shaft 31.

[0022] like Figure 1 , Figure 3 and Figure 4As shown, the tension control assembly 4 includes a horizontal motor 41 fixedly connected to the side of the support assembly 1 away from the turntable 21, a pneumatic clutch 42 is fixed to the output end of the motor 41, a vertical clutch pulley 43 is fixed to the pneumatic clutch 42, two spaced first gears 44 are rotatably connected to the main shaft 31, two second gears 45 rotatably connected to the main shaft 31 are provided on the opposite side of the two first gears 44, and the two pneumatic shafts 23 are located outside the fixed seat 22. The parts are fixed with driven wheels 46, and belts 47 are provided between the two clutch pulleys 43 and the first gear 44 and the second gear 45, respectively, and between the two driven wheels 46 and the first gear 44 and the second gear 45, respectively, and every two wheels driven by the belt 47 are arranged in parallel; a first bearing 441 rotatably connected to the outer surface of the main shaft 31 is fixed between the two first gears 44, and a second bearing 451 rotatably connected to the outer surface of the first bearing 441 is fixed between the two second gears 45. Start the motor 41, and the output end of the motor 41 can drive the clutch pulley 43 to rotate, so that the first gear 44 and the second gear 45 arranged in parallel with the two clutch pulleys 43 can be driven to rotate through the belt 47. Due to the arrangement of the first bearing 441 and the second bearing 451, the first gear 44 and the second gear 45 arranged in parallel with the two driven wheels 46 can be driven to rotate, thereby driving the two driven wheels 46 to rotate through the belt 47, so that the two tension control components 4 can be used to control the two inflatable shafts 23 to rotate around their respective axes. The pneumatic clutch 42 can realize the transmission and cutting off of the output power of the motor 41, and can also prevent the motor from being damaged due to frequent starting and stopping, so as to realize the control of the winding tension of the flexible circuit board roll on the inflatable shaft 23.

[0023] like Figure 1 and Figure 5 As shown, the turntable 21 is provided with two adjustment components 5 for adjusting the tightness of the belt 47 between the two driven wheels 46 and the first gear 44 and the second gear 45 respectively. The adjustment component 5 includes two support blocks 51 fixed on the turntable 21 at intervals, and a connecting seat 52 is provided between the two support blocks 51. A roller 53 in contact with the belt 47 is fixed on the side of the connecting seat 52 facing away from the turntable 21, and a vertical screw rod 54 is fixed on the connecting seat 52. The end of the screw rod 54 that is not fixed to the connecting seat 52 passes through the support block 51 and extends outside the support block 51. The part of the screw rod 54 located outside the support block 51 is rotatably connected with a nut 55. By adjusting the distance between the end of the screw rod 54 fixed with the connecting seat 52 and the support block 51 through the nut 55, the position of the connecting seat 52 in the vertical direction can be controlled, thereby controlling the position of the roller 53 in the vertical direction. In this way, the degree of compression of the belt 47 between the two driven wheels 46 and the first gear 44 and the second gear 45 by the roller 53 can be controlled to control the tightness of the belt 47.

[0024] like Figure 2 As shown, the support assembly 1 includes a bottom plate 11 and a top plate 12 arranged horizontally, two symmetrical and vertical vertical plates 13 are fixed between the bottom plate 11 and the top plate 12, a vertical connecting plate 14 is fixed between the two vertical plates 13, and the fixed end of the flip motor 32 is fixedly connected to the connecting plate 14. By arranging the bottom plate 11, the top plate 12 and the vertical plate 13, the whole device is more stable; the connecting plate 14 can fix the flip motor 32.

[0025] like Figure 2 As shown, the main shaft 31 and the flip motor 32 are connected by two meshing flip gears 33, a cavity 15 is provided between the top plate 12 and the connecting plate 14 for the flip gear 33 to move, the end of the main shaft 31 not connected to the turntable 21 is rotatably connected to a high-speed rotary joint 34, a support seat 16 rotatably connected to the main shaft 31 is fixed on the top surface of the top plate 12, and a connecting frame 35 having one end fixed to the support seat 16 is fixed to the fixed end of the high-speed rotary joint 34. When the flip motor 32 is started, the output end of the flip motor 32 drives the main shaft 31 to move around its own axis through two meshing flip gears 33, thereby realizing the automatic replacement of the pneumatic shaft 23; the high-speed rotary joint 34 can adopt a high-speed rotary joint with 2 in and 2 out channels, which can ensure continuous and stable transmission of the medium at high speed to ensure the normal operation of the entire device; the setting of the support seat 16 and the connecting frame 35 can provide strong support for the high-speed rotary joint 34, the flip gear 33 and the main shaft 31.

[0026] like Figure 3 As shown, a support plate 17 fixedly connected to the motor 41 is fixed to the top surface of the top plate 12, and a bearing seat 18 rotatably connected to the outer surface of the second bearing 451 is fixed to the top surface of the top plate 12. The support plate 17 can fix the motor 41, and the bearing seat 18 can limit and support the first gear 44, the second gear 45, the first bearing 441 and the second bearing 451.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, a positioning sensor 25 is fixed on the turntable 21. The flip motor 32 and the motor 41 can be connected to the flexible circuit board conveying system through a computer program, and the automatic replacement of the flexible circuit board coil can be detected through the positioning sensor 25 to ensure the automatic operation process of the entire device.

[0028] When in use, the flexible circuit board coil is sleeved on the inflatable shaft 23, and the inflatable shaft 23 is inflated through the inflatable shaft rotary joint 24, so that the flexible circuit board coil is fixed on the surface of the inflatable shaft 23. Then, the flip motor 32 is started, and the output end of the flip motor 32 drives the main shaft 31 to move around its own axis through two meshing flip gears 33, which can drive the turntable 21 to rotate around the center, thereby driving the two inflatable shafts 23 to rotate; when one of the inflatable shafts 23 rotates to a specific position, the motor 41 is started, and the output end of the motor 41 can drive the clutch pulley 43 to rotate, which can drive the first gear 4 arranged in parallel with the two clutch pulleys 43 through the belt 47. 4 and the second gear 45 rotate. Due to the arrangement of the first bearing 441 and the second bearing 451, the first gear 44 and the second gear 45 respectively arranged in parallel with the two driven wheels 46 can be driven to rotate, thereby driving the two driven wheels 46 to rotate through the belt 47, so that the two tension control components 4 can be used to respectively control the two air shafts 23 to rotate around their respective axes, thereby realizing the control of the winding tension of the flexible circuit board roll; when the roll on the air shaft 23 that is being rolled out is completed, the flip motor 32 is used to rotate the other air shaft 23 to the same position, and the tension control component 4 is also used to control the rotation of the air shaft 23, so that the seamless connection of the roll can be realized.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A flexible circuit board unwinding machine, comprising a support assembly (1) and a unwinding assembly (2), characterized in that: The unwinding assembly (2) comprises a turntable (21) which is vertically arranged and located outside the supporting assembly (1); two symmetrical fixed seats (22) are fixed on the turntable (21); two air shafts (23) are movably arranged on a side of the turntable (21) which is away from the supporting assembly (1); the fixed ends of the two air shafts (23) respectively penetrate the turntable (21) and the two fixed seats (22) and extend outside the fixed seats (22); the fixed ends of the two air shafts (23) are respectively rotatably connected to the two fixed seats (22); and the part of the air shaft (23) located outside the fixed seat (22) is rotatably connected to a air shaft rotating joint (24); The support assembly (1) is provided with a flip assembly (3) for controlling the rotation of the turntable (21), the flip assembly (3) comprising a main shaft (31) horizontally arranged above the support assembly (1), one end of the main shaft (31) being fixedly connected to the center of the turntable (21), and a flip motor (32) for driving the main shaft (31) to rotate around its own axis is fixed on a side of the support assembly (1) away from the turntable (21); The support assembly (1) is provided with two tension control assemblies (4) for respectively controlling the rotation of the two inflatable shafts (23) around their respective axes, and the two tension control assemblies (4) are respectively located on both sides of the main shaft (31).

2. The flexible circuit board unwinding machine according to claim 1, characterized in that: The tension control assembly (4) comprises a horizontal motor (41) fixedly connected to a side of the support assembly (1) away from the turntable (21); a pneumatic clutch (42) is fixedly provided at the output end of the motor (41); a vertical clutch pulley (43) is fixedly provided on the pneumatic clutch (42); two first gears (44) are rotatably connected to the main shaft (31); two second gears (45) rotatably connected to the main shaft (31) are provided on the opposite side of the two first gears (44); and the two air shafts (23) are fixedly provided with a pneumatic clutch (42) at the parts outside the fixed seat (22). A driving wheel (46), a belt (47) is provided between the two clutch pulleys (43) and the first gear (44) and the second gear (45), and between the two driven wheels (46) and the first gear (44) and the second gear (45), and each two wheels driven by the belt (47) are arranged in parallel; a first bearing (441) rotatably connected to the outer surface of the main shaft (31) is fixed between the two first gears (44), and a second bearing (451) rotatably connected to the outer surface of the first bearing (441) is fixed between the two second gears (45).

3. The flexible circuit board unwinding machine according to claim 2, characterized in that: The rotating disk (21) is provided with two adjustment assemblies (5) for adjusting the tightness of a belt (47) between two driven wheels (46) and a first gear (44) and a second gear (45), respectively. The adjustment assembly (5) comprises two support blocks (51) fixed on the rotating disk (21) at intervals, a connecting seat (52) is provided between the two support blocks (51), a roller (53) in contact with the belt (47) is fixed on a side of the connecting seat (52) facing away from the rotating disk (21), a vertical screw rod (54) is fixed on the connecting seat (52), an end of the screw rod (54) not fixed to the connecting seat (52) passes through the supporting block (51) and extends outside the supporting block (51), and a portion of the screw rod (54) located outside the supporting block (51) is rotatably connected to a nut (55).

4. The flexible circuit board unwinding machine according to claim 2, characterized in that: The support assembly (1) comprises a bottom plate (11) and a top plate (12) arranged horizontally, two symmetrical and vertical vertical plates (13) are fixed between the bottom plate (11) and the top plate (12), a vertical connecting plate (14) is fixed between the two vertical plates (13), and a fixed end of the flip motor (32) is fixedly connected to the connecting plate (14).

5. The flexible circuit board unwinding machine according to claim 4, characterized in that: The main shaft (31) and the flip motor (32) are connected to each other by two meshing flip gears (33). A cavity (15) is provided between the top plate (12) and the connecting plate (14) for the flip gear (33) to move. The end of the main shaft (31) not connected to the turntable (21) is rotatably connected to a high-speed rotating joint (34). A support seat (16) rotatably connected to the main shaft (31) is fixed on the top surface of the top plate (12). A connecting frame (35) having one end fixed to the support seat (16) is fixed to the fixed end of the high-speed rotating joint (34).

6. The flexible circuit board unwinding machine according to claim 4, characterized in that: A support plate (17) fixedly connected to the motor (41) is fixed on the top surface of the top plate (12), and a bearing seat (18) rotatably connected to the outer surface of the second bearing (451) is fixed on the top surface of the top plate (12).

7. The flexible circuit board unwinding machine according to claim 1, characterized in that: A positioning sensor (25) is fixed on the rotating disk (21).

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