FPC bending device

Abstract

The utility model belongs to the technical field of FPC bending, and particularly relates to an FPC bending device which comprises a base. A supporting frame is fixedly connected to the base, a pneumatic cylinder is installed on the supporting frame, a pneumatic rod is assembled at the acting end of the pneumatic cylinder, a bending die is fixedly connected to the bottom end of the pneumatic rod, first fixing bases are fixedly connected to the two sides of the bending die, sleeves are hinged to the interiors of the two first fixing bases, telescopic rods are movably installed in the two sleeves, and the telescopic rods are fixedly connected to the base. The other end of the telescopic rod is fixedly connected with a mounting frame, a pressing wheel is rotatably mounted in the mounting frame, and the bottom end of the telescopic rod is sleeved with a fixed circular plate; in the downward pressing and bending process, through cooperation of the second spring, the sleeve, the telescopic rod and the first spring, the pressing wheel can effectively press and limit the two ends of the circuit board all the time, the phenomenon that the circuit board slides or tilts in the bending process is avoided, and therefore the bending effect of the circuit board is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of FPC bending, in particular to an FPC bending device. Background Art

[0002] FPC is a flexible circuit board, which is a printed circuit board made of a flexible insulating substrate such as polyimide or polyester film. During the processing of the FPC circuit board, it needs to be bent, so a bending device is required.

[0003] A Chinese patent with announcement number CN102938979B discloses a bending device for a flexible circuit board, including a base and a side panel connected to the base; a pressing mechanism is provided on the side panel, the pressing mechanism includes a fixed seat, a connecting rod and a pressing plate, the fixed seat is connected to the side panel, one end of the connecting rod is connected to the fixed seat, and the other end is connected to the pressing plate, a pressing block is provided at the lower part of the pressing plate, a pushing block is provided on the base, the pushing block is used to push the flexible circuit board to bend into shape, a accommodating groove and a groove are provided on the base, the accommodating groove accommodates the flexible circuit board, and the groove matches the pressing block; during the bending process of the present invention, only one action of the pressing mechanism is required to complete the bending operation.

[0004] In the existing FPC circuit board bending device, during the downward bending process, the circuit board will slide or tilt due to the lack of effective pressing and limiting of the circuit board, thereby affecting the bending effect of the circuit board. Therefore, an FPC bending device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised by the above-mentioned background technology, the utility model proposes an FPC bending device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an FPC bending device described in the utility model comprises a base; a support frame is fixedly connected to the base, a pneumatic cylinder is installed on the support frame, a pneumatic rod is assembled at the active end of the pneumatic cylinder, a bending mold is fixedly connected to the bottom end of the pneumatic rod, first fixed seats are fixedly connected to both sides of the bending mold, sleeves are hinged in the two first fixed seats, telescopic rods are movably installed in the two sleeves, and the other end of the telescopic rod is fixedly connected to a mounting frame, a pressing wheel is rotatably installed in the mounting frame, a fixed circular plate is sleeved on the bottom end of the telescopic rod, a first spring is fixedly connected between the fixed circular plate and the sleeve, and the first spring is sleeved on the telescopic rod, a second spring is fixedly connected to the outer circumferential surface of the sleeve, and the The other end of the second spring is fixedly connected to the bending mold, and two vertical plates are fixedly connected to the base, and the top ends of the two vertical plates are hinged with second fixed seats, and the two second fixed seats are fixedly connected with supporting plates, and a third spring is fixedly connected between the supporting plates and the vertical plates. When bending the circuit board, after the circuit board is placed on the supporting plate, the pneumatic cylinder is started to make the pneumatic rod drive the bending mold to move vertically downward, the third spring is compressed, and the angle of the supporting plate changes, thereby completing the bending process of the circuit board. During the downward pressure bending process, the second spring, the sleeve, the telescopic rod and the first spring cooperate with each other, so that the pressing wheel can always effectively press and limit the two ends of the circuit board, thereby avoiding sliding or tilting of the circuit board during the bending process, thereby ensuring the bending effect of the circuit board.

[0007] Preferably, two fixing posts are fixedly connected to the base, and an angle ruler is fixedly connected to the two fixing posts. The angle ruler is provided with an arc groove, a sliding rod is inserted in the arc groove, one end of the sliding rod is covered with a limit cap, and the other end of the sliding rod is covered with a locking nut, and a stop rod is fixed to the limit cap. When the bending angle is adjusted, the sliding rod is moved along the arc groove, and then the stop rod is moved accordingly. Until the stop rod moves to a suitable angle, the stop rod can be fixed in the current position through the action of the locking nut. During the downward bending process, when the supporting plate moves down to conflict with the stop rod, it indicates that the bending operation has been completed. Therefore, the bending angle can be adjusted as needed, and the bending angle can also be accurately controlled, thereby improving the bending accuracy.

[0008] Preferably, three rod holes are provided in the base, movable rods are inserted into the three rod holes, and the three movable rods are cooperated and fixed with a contact plate. Screw holes are provided on the base, locking bolts are inserted into the screw holes, and the bottom ends of the locking bolts are in contact with the outer surfaces of the movable rods. Before bending, the movable rods are moved to drive the contact plates to move until the contact plates move to contact with the circuit board. The locking bolts can fix the contact plates in the current position, thereby limiting the initial bending position of the circuit board.

[0009] The utility model is beneficial in that:

[0010] 1. During the bending process, the second spring, the sleeve, the telescopic rod and the first spring cooperate with each other to enable the pressing wheel to always effectively press and limit the two ends of the circuit board, thereby preventing the circuit board from sliding or tilting during the bending process, thereby ensuring the bending effect of the circuit board;

[0011] 2. When the bending angle is adjusted, the utility model causes the slide bar to move along the arc groove, and then causes the stop bar to move accordingly, until the stop bar moves to a suitable angle, the stop bar can be fixed at the current position through the action of the locking nut, and during the downward bending process, when the support plate moves down to contact the stop bar, it indicates that the bending operation has been completed, so that the bending angle can be adjusted as needed and the bending angle can be accurately controlled, thereby improving the accuracy of the bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the overall main three-dimensional structure of the bending device;

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the supporting plate assembly;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the pressing limit mechanism;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the angle adjustment component.

[0017] In the figure: 1. base; 2. support frame; 3. pneumatic cylinder; 4. pneumatic rod; 5. bending mold; 6. first fixed seat; 7. sleeve; 8. telescopic rod; 9. mounting frame; 10. pressing wheel; 11. first spring; 12. second spring; 13. vertical plate; 14. second fixed seat; 15. supporting plate; 16. third spring; 17. fixing column; 18. angle ruler; 19. arc groove; 20. sliding rod; 21. locking nut; 22. limiting cap; 23. stop rod; 24. rod hole; 25. movable rod; 26. contact plate; 27. locking bolt. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 As shown, an FPC bending device comprises a base 1; a support frame 2 is fixedly connected to the base 1, a pneumatic cylinder 3 is installed on the support frame 2, a pneumatic rod 4 is assembled at the active end of the pneumatic cylinder 3, a bending mold 5 is fixedly connected to the bottom end of the pneumatic rod 4, first fixed seats 6 are fixedly connected to both sides of the bending mold 5, sleeves 7 are hinged in the two first fixed seats 6, telescopic rods 8 are movably installed in the two sleeves 7, and the other end of the telescopic rod 8 is fixedly connected to a mounting frame 9, a pressing wheel 10 is rotatably installed in the mounting frame 9, a fixed circular plate is sleeved on the bottom end of the telescopic rod 8, a first spring 11 is fixedly connected between the fixed circular plate and the sleeve 7, and the first spring 11 is sleeved on the telescopic rod 8, a second spring 12 is fixedly connected to the outer circumferential surface of the sleeve 7, and the other end of the second spring 12 is fixedly connected to the bending mold 5, and the base 1 is fixedly connected to Two vertical plates 13, the top ends of the two vertical plates 13 are hinged with second fixed seats 14, and the two second fixed seats 14 are fixedly connected with supporting plates 15, and a third spring 16 is fixedly connected between the supporting plates 15 and the vertical plates 13; when bending the circuit board, after placing the circuit board on the supporting plates 15, the pneumatic cylinder 3 is started, so that the pneumatic rod 4 drives the bending mold 5 to move vertically downward, the third spring 16 is compressed, and the angle of the supporting plates 15 changes, so that the bending process of the circuit board can be completed. In the process of pressing down and bending, through the coordinated cooperation of the second spring 12, the sleeve 7, the telescopic rod 8 and the first spring 11, the pressing wheel 10 can always effectively press and limit the two ends of the circuit board, so as to avoid the circuit board from sliding or tilting during the bending process, thereby ensuring the bending effect of the circuit board.

[0020] See also Figure 4As shown, two fixing columns 17 are fixedly connected to the base 1, and an angle ruler 18 is fixedly connected to the two fixing columns 17. The angle ruler 18 is provided with an arc groove 19, and a slide bar 20 is inserted in the arc groove 19. One end of the slide bar 20 is sleeved with a limit cap 22, and the other end of the slide bar 20 is sleeved with a locking nut 21, and a stop bar 23 is fixedly connected to the limit cap 22; when the bending angle is adjusted, the slide bar 20 is moved along the arc groove 19, and then the stop bar 23 is moved accordingly, until the stop bar 23 moves to a suitable angle, and the stop bar 23 can be fixed in the current position through the action of the locking nut 21. During the downward bending process, when the support plate 15 moves down to conflict with the stop bar 23, it means that the bending operation has been completed, so that the bending angle can be adjusted according to needs, and the bending angle can also be accurately controlled, thereby improving the bending accuracy.

[0021] See also Figure 1-2 As shown, three rod holes 24 are provided in the base 1, and movable rods 25 are inserted in the three rod holes 24. The three movable rods 25 are cooperated and fixed with a contact plate 26. Screw holes are provided on the base 1, and locking bolts 27 are inserted in the screw holes, and the bottom ends of the locking bolts 27 are in contact with the outer surfaces of the movable rods 25. Before bending, the movable rods 25 are moved to drive the contact plates 26 to move until the contact plates 26 move to contact with the circuit board. The locking bolts 27 can fix the contact plates 26 in the current position, thereby limiting the initial bending position of the circuit board.

[0022] Working principle: In the process of pressing down and bending, the existing FPC circuit board bending device will cause the circuit board to slide or tilt due to the lack of effective pressing and limiting of the circuit board, thereby affecting the bending effect of the circuit board; therefore, an FPC bending device is proposed to address the above problem; when bending the circuit board, after placing the circuit board on the supporting plate 15, the pneumatic cylinder 3 is started to make the pneumatic rod 4 drive the bending die 5 to move vertically downward, the third spring 16 is compressed, and the angle of the supporting plate 15 changes, thereby completing the bending process of the circuit board. In the process of pressing down and bending, the second spring 12, the sleeve 7, the telescopic rod 8 and the first spring 11 cooperate to enable the pressing wheel 10 to always effectively press and limit the two ends of the circuit board, thereby avoiding the phenomenon of sliding or tilting of the circuit board during the bending process, thereby ensuring the bending effect of the circuit board;

[0023] When adjusting the bending angle, the sliding rod 20 is moved along the arc groove 19, and the blocking rod 23 is also moved accordingly, until the blocking rod 23 moves to a suitable angle, the blocking rod 23 can be fixed at the current position through the action of the locking nut 21. During the downward bending process, when the supporting plate 15 moves down to contact the blocking rod 23, it indicates that the bending operation has been completed. The bending angle can be adjusted as needed and the bending angle can be accurately controlled, thereby improving the accuracy of the bending.

[0024] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An FPC bending device, characterized in that: The invention comprises a base (1); a support frame (2) is fixedly connected to the base (1); a pneumatic cylinder (3) is installed on the support frame (2); a pneumatic rod (4) is installed at the action end of the pneumatic cylinder (3); a bending mold (5) is fixedly connected to the bottom end of the pneumatic rod (4); first fixed seats (6) are fixedly connected to both sides of the bending mold (5); sleeves (7) are hingedly connected in the two first fixed seats (6); telescopic rods (8) are movably installed in the two sleeves (7); and the telescopic rods (8) are movable in the two sleeves (7); and the telescopic rods (8) are movable in the two sleeves (7). The other end of the telescopic rod (8) is fixedly connected to a mounting frame (9), a pressing wheel (10) is rotatably mounted in the mounting frame (9), a fixed circular plate is sleeved on the bottom end of the telescopic rod (8), a first spring (11) is fixedly connected between the fixed circular plate and the sleeve (7), and the first spring (11) is sleeved on the telescopic rod (8), a second spring (12) is fixedly connected to the outer circumferential surface of the sleeve (7), and the other end of the second spring (12) is fixedly connected to the bending mold (5).

2. The FPC bending device according to claim 1, characterized in that: Two vertical plates (13) are fixedly connected to the base (1), the top ends of the two vertical plates (13) are hinged with second fixed seats (14), the two second fixed seats (14) are fixedly connected with supporting plates (15), and a third spring (16) is fixedly connected between the supporting plates (15) and the vertical plates (13).

3. The FPC bending device according to claim 1, characterized in that: Two fixing columns (17) are fixedly connected to the base (1), and an angle ruler (18) is fixedly connected to the two fixing columns (17). An arc groove (19) is formed on the angle ruler (18), and a sliding rod (20) is inserted into the arc groove (19).

4. The FPC bending device according to claim 3, characterized in that: One end of the slide rod (20) is sleeved with a limit cap (22), the other end of the slide rod (20) is sleeved with a locking nut (21), and a stop rod (23) is fixedly connected to the limit cap (22).

5. The FPC bending device according to claim 1, characterized in that: The base (1) is provided with three rod holes (24), each of which is penetrated by a movable rod (25), and the three movable rods (25) are fixedly connected with a contact plate (26).

6. The FPC bending device according to claim 1, characterized in that: The base (1) is provided with a screw hole, a locking bolt (27) is inserted into the screw hole, and the bottom end of the locking bolt (27) is in conflict with the outer surface of the movable rod (25).

Images