Automatic tension adjusting mechanism for flexible circuit board coiled material

Abstract

The utility model discloses an automatic tension adjusting mechanism for a flexible circuit board coiled material, which relates to the technical field of flexible circuit board coiled materials and comprises racks symmetrically distributed on two sides, a bearing seat is fixedly mounted at the top of each rack, a shaft sleeve is rotatably inserted into each bearing seat, and rotating discs close to the bearing seats are fixedly arranged at two ends of each shaft sleeve; a push rod assembly is slidably inserted into one end of the shaft sleeve, a plurality of supporting arm assemblies are arranged outside the push rod assembly, a plurality of guide limiting assemblies are arranged on the outer wall of one side of the rotating disc, and an outer cylinder plate is slidably arranged on the guide limiting assemblies. The adopted push rod assembly can be used for keeping the supporting arm assembly to elastically support the outer cylinder plate, so that the outer cylinder plate is in contact with the flexible circuit board coiled material, the damage to the flexible circuit board coiled material caused by large unfolding force is avoided, the unfolding processing operation of the flexible circuit board coiled material is facilitated, and the working efficiency is improved. And a good protection effect is achieved on the flexible circuit board coiled material.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board roll technology, specifically to an automatic tensioning adjustment mechanism for flexible circuit board rolls. Background Technology

[0002] Flexible circuit boards, also known as FPCs, are electronic circuit boards made of thin-film substrates. Compared with traditional rigid circuit boards, flexible circuit boards have the flexibility to bend, fold, and bend, and can adapt to complex three-dimensional spatial layouts. Flexible circuit boards are composed of metal wires, insulating layers, and protective layers. Common metal wire materials include copper, gold, or silver. Before the flexible circuit board is processed and formed, its main board is mostly in the form of rolls.

[0003] When using flexible printed circuit board (PCB) rolls, it is necessary to unfold the rolls and cut them to specific dimensions. Because the PCB rolls are relatively soft and thin, they are prone to breakage during unfolding. To address this, we propose an automatic tension adjustment mechanism for flexible printed circuit board (PCB) rolls. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic tensioning adjustment mechanism for flexible circuit board rolls, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an automatic tensioning adjustment mechanism for flexible circuit board rolls, comprising: a frame symmetrically distributed on both sides; a bearing seat is fixedly installed on the top of the frame, and a bushing is rotatably inserted into the bearing seat; and a rotating disk is fixedly provided at both ends of the bushing near the bearing seat.

[0006] A push rod assembly is slidably inserted into one end of the bushing, and several support arm assemblies are provided on the outside of the push rod assembly. Several guide and limiting assemblies are provided on one side of the outer wall of the rotating disk, and an outer cylinder plate is slidably provided on the guide and limiting assemblies. The inner side of the outer cylinder plate is rotatably connected to one end of the support arm assembly.

[0007] An adjustment module is fixedly installed on one side of the outer wall of the frame, and the adjustment module is connected to the push rod assembly in a transmission manner. One end of the push rod assembly is provided with a tensioning mechanism fixedly installed on one side of the outer wall of the frame. The adjustment module and the tensioning mechanism are used at least to adjust the thrust of the push rod assembly to realize the tension control of the outer cylinder plate.

[0008] Preferably, a groove is provided on one side of the outer wall of the bushing, and the push rod assembly is slidably connected to the bushing through the groove.

[0009] Preferably, the push rod assembly includes a push rod inserted inside the bushing tube, a pin is fixedly connected to one side of the top of the push rod, and an abutment plate is fixedly installed at one end of the push rod. Several synchronous sliding columns are fixedly arranged on the outer wall of the push rod and slidably inserted into the outside of the bushing tube, and the synchronous sliding columns are sleeved on the outside of the bushing tube.

[0010] Preferably, the support arm assembly is composed of rotating joints and connecting rods at both ends, and the two ends of the rotating joints are rotatably connected to the push rod assembly and the outer cylinder plate, respectively.

[0011] Preferably, reinforcing ribs are fixedly provided on the inner sidewall of the outer cylinder plate.

[0012] Preferably, the guide limiting assembly includes a guide rail fixed on the side wall of the rotating disk, and a slider is slidably connected on the guide rail, the slider being fixed on the outer walls of both ends of the outer cylinder plate.

[0013] Preferably, the control module includes a motor base fixed on the outer wall of the frame, and a torque motor is fixedly installed on the motor base. A bushing is installed on the output shaft of the torque motor, and a swing arm is fixedly provided on the outer wall of one side of the bushing. The swing arm is connected to the push rod assembly in a transmission manner.

[0014] Preferably, the tensioning mechanism includes a telescopic rod fixed to the side wall of the frame, and a jacket is fixedly provided on the top of the telescopic rod. A spring is provided inside the jacket, and an adjusting screw sleeve is fixedly installed on one outer wall of the jacket. A screw is inserted into the internal thread of the adjusting screw sleeve.

[0015] This utility model provides an automatic tension adjustment mechanism for flexible circuit board rolls, which has the following advantages:

[0016] 1. The push rod assembly used can maintain the elastic support of the support arm assembly for the outer cylinder plate, thereby allowing the outer cylinder plate to contact the flexible circuit board roll material. This avoids damage to the flexible circuit board roll material caused by large unfolding force, and is more conducive to the unfolding and processing of the flexible circuit board roll material, thus playing a good protective role for the flexible circuit board roll material.

[0017] 2. The tensioning mechanism used can provide elastic support to the end of the push rod assembly. When the flexible circuit board roll is subjected to a large tensile force, the outer cylinder plate compresses the support arm assembly, thereby allowing the push rod assembly to compress the tensioning mechanism, thus relieving the large tensile force on the flexible circuit board roll and preventing the flexible circuit board roll from breaking.

[0018] 3. At the same time, an adjustment module is set on one side of the tensioning mechanism, which can actively adjust the push rod assembly to avoid excessive positional movement of the push rod assembly, and play a good stabilizing and auxiliary role in the tensioning of the flexible circuit board roll. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural view of an automatic tensioning adjustment mechanism for flexible circuit board rolls according to the present invention.

[0020] Figure 2 This utility model discloses a three-dimensional structure of an automatic tensioning adjustment mechanism for flexible circuit board rolls. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the support arm assembly structure of an automatic tensioning adjustment mechanism for flexible circuit board rolls according to this utility model.

[0022] Figure 4 This is a schematic diagram of the push rod assembly structure of an automatic tensioning adjustment mechanism for flexible circuit board rolls according to this utility model;

[0023] Figure 5 This is a schematic diagram of the tensioning mechanism structure of an automatic tensioning adjustment mechanism for flexible circuit board rolls according to this utility model.

[0024] 1. Frame; 2. Bearing seat; 3. Rotary disc; 4. Bushing; 41. Groove; 5. Push rod assembly; 51. Push rod; 52. Pin; 53. Contact disc; 54. Synchronous slide column; 6. Support arm assembly; 61. Rotating joint; 62. Connecting rod; 7. Outer cylinder plate; 71. Reinforcing rib; 8. Guide limit assembly; 81. Guide rail; 82. Slider; 9. Control module; 91. Motor seat; 92. Torque motor; 93. Bushing; 94. Swing arm; 10. Tensioning mechanism; 101. Telescopic rod; 102. Outer sleeve; 103. Spring; 104. Adjusting screw sleeve; 105. Screw. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] like Figures 1-5As shown, this utility model provides a technical solution: an automatic tensioning adjustment mechanism for flexible circuit board rolls, comprising: a frame 1 symmetrically distributed on both sides; a bearing seat 2 is fixedly installed on the top of the frame 1, and a bushing 4 is rotatably inserted into the bearing seat 2, with a rotating disk 3 fixedly installed at both ends of the bushing 4 near the bearing seat 2; a push rod assembly 5 is slidably inserted into one end of the bushing 4, and several support arm assemblies 6 are provided on the outside of the push rod assembly 5; several guide limiting assemblies 8 are provided on one side of the outer wall of the rotating disk 3, and an outer cylinder plate 7 is slidably installed on the guide limiting assembly 8, with the inner side of the outer cylinder plate 7 rotatably connected to one end of the support arm assembly 6; an adjustment module 9 is fixedly installed on one side of the outer wall of the frame 1, and the adjustment module 9 is drively connected to the push rod assembly 5; a tensioning mechanism 10 is fixedly installed on one side of the outer wall of the frame 1 at one end of the push rod assembly 5; the adjustment module 9 and the tensioning mechanism 10 are used at least to adjust the thrust of the push rod assembly 5 to achieve tension control of the outer cylinder plate 7.

[0027] In this embodiment, the device includes: a frame 1 symmetrically distributed on both sides; a bearing seat 2 is fixedly installed on the top of the frame 1, and a bushing 4 is rotatably inserted into the bearing seat 2; a rotating disk 3 is fixedly installed at both ends of the bushing 4 near the bearing seat 2; the bushing 4 can rotate inside the bearing seat 2 with the rotating disk 3; a groove 41 is provided on one outer wall of the bushing 4; the push rod assembly 5 is slidably connected to the bushing 4 through the groove 41; the synchronous slide column 54 has a two-part structure, with the middle part connected by a connecting body; the two parts of the synchronous slide column 54 are the outside and inside of the bushing 4, the inner part is connected to the push rod 51, and the outer part is sleeved on the outside of the bushing 4.

[0028] In this embodiment, a push rod assembly 5 is slidably inserted into one end of the bushing 4; the push rod assembly 5 includes a push rod 51 inserted into the bushing 4, a pin 52 fixedly connected to one side of the top of the push rod 51, the pin 52 is used in conjunction with the swing arm 94, and a contact plate 53 is fixedly installed at one end of the push rod 51, the contact plate 53 is inserted into the inside of the outer cylinder 102, and a plurality of synchronous sliding columns 54 are fixedly provided on the outer wall of the push rod 51 and slidably inserted into the outside of the bushing 4, and the synchronous sliding columns 54 are sleeved on the outside of the bushing 4. By pushing the push rod 51, the push rod 51 can drive the synchronous sliding columns 54 to slide on the bushing 4, thereby using the synchronous sliding columns 54 to drive the support arm assembly 6 to change the angle, and using the support arm assembly 6 to adjust the position of the outer cylinder plate 7.

[0029] In this embodiment, the push rod assembly 5 is provided with several support arm assemblies 6 on its exterior. The support arm assembly 6 is composed of rotating joints 61 and connecting rods 62 at both ends. The two ends of the rotating joints 61 are rotatably connected to the push rod assembly 5 and the outer cylinder plate 7, respectively. Driven by the push rod 51, the connecting rods 62 on the rotating joints 61 rotate, which can shrink the outer cylinder plate 7 inward and outward along the guide limiting assembly 8. When the diameter of the outer cylinder plate 7 becomes smaller, the flexible circuit board roll becomes loose. When the diameter of the outer cylinder plate 7 becomes larger, the flexible circuit board roll becomes taut.

[0030] In this embodiment, a plurality of guide and limiting components 8 are provided on one outer wall of the rotating disk 3, and an outer cylindrical plate 7 is slidably disposed on the guide and limiting components 8. The inner side of the outer cylindrical plate 7 is rotatably connected to one end of the support arm assembly 6. A reinforcing rib 71 is fixedly disposed on the inner side wall of the outer cylindrical plate 7, which strengthens the outer cylindrical plate 7. The guide and limiting components 8 include a guide rail 81 fixed on the side wall of the rotating disk 3, and a slider 82 is slidably connected on the guide rail 81. The slider 82 is fixed on the outer walls of both ends of the outer cylindrical plate 7. When the outer cylindrical plate 7 is adjusted, the slider 82 slides on the guide rail 81, ensuring linear movement of the outer cylindrical plate 7 inward and outward.

[0031] In this embodiment, an adjustment module 9 is fixedly installed on one side of the outer wall of the frame 1, and the adjustment module 9 is connected to the push rod assembly 5 in a transmission manner. The adjustment module 9 includes a motor base 91 fixed on the outer wall of the frame 1, and a torque motor 92 is fixedly installed on the motor base 91. A bushing 93 is installed on the output shaft of the torque motor 92, and a swing arm 94 is fixedly installed on the outer wall of one side of the bushing 93. The swing arm 94 is connected to the push rod assembly 5 in a transmission manner. When the tensioning mechanism 10 is used to adjust the outer cylinder plate 7, the movement of the swing arm 94 can be achieved by starting the torque motor 92. The torque motor can be used to actively adjust the push rod assembly 5, which is used to assist the tensioning mechanism 10 in adjusting the tension of the outer cylinder plate 7.

[0032] In this embodiment, one end of the push rod assembly 5 is provided with a tensioning mechanism 10 fixedly installed on the outer wall of one side of the frame 1. The control module 9 and the tensioning mechanism 10 are used at least to adjust the thrust of the push rod assembly 5 to realize the tension control of the outer cylinder plate 7. The tensioning mechanism 10 includes a telescopic rod 101 fixed to the side wall of the frame 1. The installation position of the tensioning mechanism 10 can be adjusted through the telescopic rod 101. An outer sleeve 102 is fixedly installed on the top of the telescopic rod 101. A spring 103 is installed inside the outer sleeve 102. When the outer cylinder plate 7 is under pressure, it can drive the support arm assembly 6 and the push rod assembly 5 to move. The push rod assembly 5 compresses the spring 103, causing it to have a certain amount of deformation, which plays an automatic tensioning role in guiding the unfolding of the flexible circuit board roll. An adjusting screw sleeve 104 is fixedly installed on one side of the outer wall of the outer sleeve 102. A screw 105 is inserted into the internal thread of the adjusting screw sleeve 104. The screw 105 can be rotated inside the adjusting screw sleeve 104 to change the position of the screw 105, thereby adjusting the elastic force of the spring 103.

Claims

1. An automatic tensioning adjustment mechanism for flexible printed circuit board rolls, comprising: A frame (1) with symmetrical distribution on both sides: characterized in that: a bearing seat (2) is fixedly installed on the top of the frame (1), and a bushing (4) is rotatably inserted inside the bearing seat (2), and a rotating disk (3) is fixedly installed at both ends of the bushing (4) near the bearing seat (2). A push rod assembly (5) is slidably inserted into one end of the bushing (4), and a number of support arm assemblies (6) are provided on the outside of the push rod assembly (5). A number of guide limiting assemblies (8) are provided on one side of the outer wall of the rotating disk (3), and an outer cylinder plate (7) is slidably provided on the guide limiting assembly (8). The inner side of the outer cylinder plate (7) is rotatably connected to one end of the support arm assembly (6). An adjustment module (9) is fixedly installed on one side of the outer wall of the frame (1), and the adjustment module (9) is connected to the push rod assembly (5) in a transmission manner. One end of the push rod assembly (5) is provided with a tensioning mechanism (10) fixedly installed on one side of the outer wall of the frame (1). The adjustment module (9) and the tensioning mechanism (10) are used at least to adjust the thrust of the push rod assembly (5) to realize the tension control of the outer cylinder plate (7).

2. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: A groove (41) is provided on one side of the outer wall of the bushing (4), and the push rod assembly (5) is slidably connected to the bushing (4) through the groove (41).

3. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: The push rod assembly (5) includes a push rod (51) inserted inside the bushing (4). A pin (52) is fixedly connected to one side of the top of the push rod (51), and an abutment plate (53) is fixedly installed at one end of the push rod (51). Several synchronous sliding columns (54) are fixedly provided on the outer wall of the push rod (51) and are slidably inserted into the outside of the bushing (4). The synchronous sliding columns (54) are sleeved on the outside of the bushing (4).

4. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: The support arm assembly (6) is composed of rotating joints (61) and connecting rods (62) at both ends. The two ends of the rotating joints (61) are rotatably connected to the push rod assembly (5) and the outer cylinder plate (7), respectively.

5. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: A reinforcing rib (71) is fixedly provided on the inner wall of the outer cylinder plate (7).

6. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: The guide limiting component (8) includes a guide rail (81) fixed on the side wall of the rotating disk (3), and a slider (82) is slidably connected on the guide rail (81). The slider (82) is fixed on the outer walls of both ends of the outer cylinder plate (7).

7. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: The control module (9) includes a motor base (91) fixed on the outer wall of the frame (1), and a torque motor (92) is fixedly installed on the motor base (91). A bushing (93) is installed on the output shaft of the torque motor (92), and a swing arm (94) is fixedly provided on the outer wall of one side of the bushing (93). The swing arm (94) is connected to the push rod assembly (5) in a transmission connection.

8. The automatic tensioning adjustment mechanism for flexible circuit board rolls according to claim 1, characterized in that: The tensioning mechanism (10) includes a telescopic rod (101) fixed on the side wall of the frame (1), and a jacket (102) is fixedly provided on the top of the telescopic rod (101). A spring (103) is provided inside the jacket (102), and an adjusting screw sleeve (104) is fixedly installed on one side of the outer wall of the jacket (102). A screw (105) is threaded into the inside of the adjusting screw sleeve (104).

Images