FPC (Flexible Printed Circuit) bending device for LCP (Liquid Crystal Polymer) material

Abstract

The utility model belongs to the technical field of bending devices, and relates to an FPC (Flexible Printed Circuit) bending device for LCP (Liquid Crystal Polymer) materials, which comprises a case, a lower die supporting block, a bracket, a lower pressing assembly, an upper die pressing block and a plurality of bending assemblies, the lower die supporting block comprises a containing groove, a bending groove and a heating cavity. The upper die pressing block comprises a bending step and a horizontal groove; the bending assembly comprises a bending push block and a bending driving piece, and the bending push block is provided with a side punching step and a side groove; and heating modules are arranged in the heating cavity, the horizontal groove and the side grooves. According to the FPC bending device, all the heating modules can supply heat to the bending end of the FPC in multiple directions of the bending position, so that an LCP material is softened and is easy to deform, and the shape of the bending end can be fixed after the FPC is bent in a Z shape.

Description

Technical Field

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

[0002] The application of FPC (flexible circuit board) involves almost all electronic products, such as automotive electronics, digital cameras, office automation equipment, instruments and meters, medical equipment and other fields; FPC is used to make radio frequency antennas and high-speed transmission lines for smart phones, tablet computers, notebook computers, etc., and LCP (liquid crystal polymer) as a special thermoplastic material can achieve high-frequency and high-speed FPC under the premise of ensuring high reliability. FPC is bendable, and the traditional bending jig is to directly extrude and bend the FPC at the position where it needs to be bent with ordinary bakelite or FR4 materials, which poses great risks for FPC made of LCP materials.

[0003] Therefore, it is necessary to improve the device structure to solve the above problems. Summary of the invention

[0004] The main purpose of the utility model is to provide an FPC bending device for LCP material, which can bend and shape the FPC made of LCP material into a Z shape.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: an FPC bending device for LCP material, comprising a chassis, a lower die support block arranged in the middle of the upper surface of the chassis, a bracket arranged at the rear of the chassis, a pressing assembly arranged on the bracket, an upper die pressing block driven downward by the pressing assembly, and a plurality of bending assemblies arranged on at least one side of the lower die support block;

[0006] The lower mold support block includes a receiving groove for placing the FPC, a bending groove located at the end of the receiving groove, and a heating cavity located at one side of the bending groove;

[0007] The upper mold block includes a bending step located at the side and a horizontal groove arranged above the bending step;

[0008] The bending assembly includes a bending push block and a bending driving member driving the bending push block to move toward the FPC, wherein the bending push block has a side punch step close to one side of the lower mold support block and a side groove located above the side punch step;

[0009] The heating chamber, the horizontal groove and the side groove are all provided with heating modules.

[0010] Specifically, finger grooves are provided on both sides of the middle of the receiving groove.

[0011] Specifically, the pressing assembly includes a pressing drive fixed on the bracket, a lifting plate controlled by the pressing drive, and a pressing plate connected to the bottom of the lifting plate through a plurality of fixed columns of equal height, the upper mold pressing block is fixed below the front of the pressing plate, the chassis is provided with a plurality of guide columns vertically passing through the rear of the pressing plate behind the lower mold support block, and the pressing plate is provided with linear bearings matching the guide columns.

[0012] Furthermore, the pressing driving member is a quick clamp or a cylinder.

[0013] Specifically, the bending driving member is a cylinder disposed inside the chassis, and the cylinder drives the bending push block to move horizontally.

[0014] Furthermore, the chassis is provided with a pressure regulating switch for controlling the bending force of the cylinder and a pressure gauge for displaying the corresponding pressure of the bending.

[0015] Specifically, the bending drive member is a quick clamp arranged on the upper surface of the chassis.

[0016] Specifically, the chassis is provided with a temperature controller and a timer, the temperature controller is connected to a temperature probe located at a bending position, and the timer displays the heating time.

[0017] The beneficial effects of the technical solution of the utility model are:

[0018] The FPC bending device can heat the bent end of the FPC in multiple directions at the bending position with all heating modules, so that the LCP material softens and becomes easy to deform, so that the shape of the bent end of the FPC can be fixed after the Z-shaped bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of FPC;

[0020] Figure 2 A three-dimensional diagram of the FPC bending device of the embodiment;

[0021] Figure 3 A three-dimensional diagram of the lower die support block;

[0022] Figure 4 It is an overall view of the lower pressing assembly and the upper mold pressing block;

[0023] Figure 5 is a three-dimensional diagram of the upper mold block;

[0024] Figure 6 It is the position relationship diagram of the chassis and the bending component;

[0025] Figure 7 It is a three-dimensional diagram of the bending push block and its accessory parts;

[0026] Figure 8 This is the bending principle diagram.

[0027] The numbers in the figure represent:

[0028] 1-FPC, 11-bend end,

[0029] 2-FPC bending device;

[0030] 21-chassis, 211-temperature controller, 212-timer, 213-barometer, 214-pressure regulating switch, 215-guide column, 216-horizontal slide rail;

[0031] 22-lower die support block, 221-receiving groove, 222-bending groove, 223-heating chamber, 224-finger groove;

[0032] 23-Stand;

[0033] 24-downward pressure assembly, 241-downward pressure driving member, 242-lifting plate, 243-equal height fixed column, 244-pressing plate, 2441-linear bearing,

[0034] 25-upper mold block, 251-bending step, 252-horizontal groove,

[0035] 26-bending assembly, 261-bending push block, 2611-side step, 2612-side groove, 262-bending drive member, 263-slider,

[0036] 27-Heating module. DETAILED DESCRIPTION

[0037] The utility model is further described in detail below in conjunction with specific embodiments.

[0038] Example:

[0039] like Figure 2 and Figure 4 As shown, the utility model is an FPC bending device 2 for LCP material, including a chassis 21, a lower mold support block 22 arranged in the middle of the upper surface of the chassis 21, a bracket 23 arranged at the rear of the chassis 21, a pressing assembly 24 arranged on the bracket 23, an upper mold pressing block 25 driven downward by the pressing assembly 24, and two bending assemblies 26 arranged on both sides of the lower mold support block 22.

[0040] The FPC1 is pressed and fixed between the upper mold block 25 and the lower mold support block 22, and the bending components 26 perform Z-shaped bending on the bending ends 11 of the FPC1 from both sides. In practical applications, the number of bending components 26 is not limited to two, and can be increased or decreased according to the number of bending positions.

[0041] like Figure 2 and Figure 7As shown, the lower mold support block 22 includes a receiving groove 221 for placing FPC1, two bending grooves 222 respectively located at the two ends of the receiving groove 221, a heating cavity 223 located on one side of the bending groove 222 and finger grooves 224 located on both sides of the middle of the receiving groove 221, and a heating module 27 is provided in the heating cavity 223.

[0042] The receiving groove 221 is used to position and place the FPC1. In this embodiment, there are two bending positions, so there are two bending grooves 222. If the number of bends changes, the number of bending grooves 222 and the number of bending components 26 may increase or decrease. The finger groove 223 can facilitate the placement and removal of the FPC1.

[0043] As shown in Figure 4, the pressing assembly 24 includes a pressing driving member 241 fixed on the bracket 23, a lifting plate 242 controlled by the pressing driving member 241, and a pressing plate 244 connected to the bottom of the lifting plate 242 through a plurality of fixed columns 243 of equal height. The upper mold pressing block 25 is fixed below the front of the pressing plate 244. The chassis 21 is provided with a plurality of guide columns 215 vertically passing through the rear part of the pressing plate 244 at the rear of the lower mold support block 22. The pressing plate 244 is provided with a linear bearing 2441 that cooperates with the guide column 215.

[0044] The downward pressing driving member 241 in the embodiment is a quick clamp, which can manually control the lifting and lowering of the upper mold pressing block 25. The lifting plate 242, the equal height fixing column 243 and the pressing plate 244 form a frame-shaped structure, and the pressing plate 244 moves up and down under the guidance of the guide column 215, so as to avoid the position deviation of the upper mold pressing block 25 during the lifting process and make the bending position accurate. The downward pressing driving member 241 can also be a cylinder.

[0045] like Figure 5 and Figure 7 As shown, bending steps 251 are respectively provided on both sides of the upper mold block 25 , and a horizontal groove 252 is provided on the upper side of the bending steps 251 , in which a heating module 27 is embedded.

[0046] The number of the bending steps 251 matches the number of the bending positions. The heating module 27 can heat the position close to the bending steps 251 .

[0047] like Figure 6 and Figure 7 As shown, the bending assembly 26 includes a bending push block 261 and a bending driving member 262 driving the bending push block 262 to move toward the FPC1. The bending push block 261 has a side step 2611 close to the side of the lower mold support block 22 and a side groove 2612 located above the side step 2611. The heating module 27 is arranged in the side groove 2612. The upper surface of the chassis 1 is provided with a horizontal slide rail 216, and the lower part of the bending push block 261 is provided with a slider 263 matching the horizontal slide rail 216.

[0048] The bending drive member 262 here is a cylinder arranged inside the chassis 21, and the cylinder drives the bending push block 261 to move horizontally. If the bending drive member 262 adopts a quick clamp, it can be arranged on the upper surface of the chassis 21. All heating modules 27 can heat the bending end 11 of the FPC1 together in multiple directions of the bending position, so that the LCP material softens and becomes easy to deform, so that the shape of the bending end 11 of the FPC1 can be fixed after bending. The horizontal slide rail 216 is used to guide the moving direction of the bending push block 261.

[0049] like Figure 6 As shown, the chassis 21 is provided with a temperature controller 211, a timer 212, a barometer 213 and a pressure regulating switch 214, and the temperature controller 211 is connected to a temperature probe 2111 located at a bent position.

[0050] The temperature probe 2111 detects the actual temperature of the bending area. The timer 212 is used to display the heating time, so as to ensure that the LCP material is fixed. When the cylinder is used, the pressure regulating switch 214 is used to control the bending force of the cylinder when bending the FPC1, and the corresponding pressure will be displayed on the pressure gauge 213.

[0051] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An FPC bending device for LCP material, characterized by: It comprises a chassis, a lower die support block arranged in the middle of the upper surface of the chassis, a bracket arranged at the rear of the chassis, a pressing assembly arranged on the bracket, an upper die pressing block driven downward by the pressing assembly, and a plurality of bending assemblies arranged on at least one side of the lower die support block; The lower mold support block includes a receiving groove for placing the FPC, a bending groove located at the end of the receiving groove, and a heating cavity located at one side of the bending groove; The upper mold block includes a bending step located at the side and a horizontal groove arranged above the bending step; The bending assembly includes a bending push block and a bending driving member driving the bending push block to move toward the FPC, wherein the bending push block has a side punch step close to one side of the lower mold support block and a side groove located above the side punch step; The heating chamber, the horizontal groove and the side groove are all provided with heating modules.

2. The FPC bending device for LCP material according to claim 1, characterized in that: Finger grooves are arranged on both sides of the middle of the receiving groove.

3. The FPC bending device for LCP material according to claim 1, characterized in that: The pressing assembly includes a pressing drive fixed on the bracket, a lifting plate controlled by the pressing drive, and a pressing plate connected to the bottom of the lifting plate through a plurality of fixed columns of equal height. The upper mold pressing block is fixed below the front of the pressing plate. The chassis is provided with a plurality of guide columns vertically passing through the rear of the pressing plate behind the lower mold support block. The pressing plate is provided with linear bearings matching the guide columns.

4. The FPC bending device for LCP material according to claim 3, characterized in that: The pressing driving member is a quick clamp or a cylinder.

5. The FPC bending device for LCP material according to claim 1, characterized in that: The bending driving member is a cylinder arranged inside the chassis, and the cylinder drives the bending push block to move horizontally.

6. The FPC bending device for LCP material according to claim 4 or 5, characterized in that: The chassis is provided with a pressure regulating switch for controlling the bending force of the cylinder and a pressure gauge for displaying the corresponding pressure of the bending.

7. The FPC bending device for LCP material according to claim 1, characterized in that: The bending driving member is a quick clamp arranged on the upper surface of the chassis.

8. The FPC bending device for LCP material according to claim 1, characterized in that: The chassis is provided with a temperature controller and a timer, the temperature controller is connected to a temperature probe located at a bending position, and the timer displays the heating time.

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