Bending and hot-pressing integrated pressure maintaining clamp for FPC (Flexible Printed Circuit) processing

Abstract

The utility model discloses a bending and hot-pressing integrated pressure maintaining clamp for FPC processing, which comprises guide rails arranged on two sides of a base and a sliding block assembled on the guide rails, and the sliding block is provided with a shaping jig main body which slides on the guide rails through a driving device. A head positioning groove used for fixing the bent head of the FPC main body is formed in the shaping jig main body, a hot pressing assembly is arranged above the shaping jig main body, and the hot pressing assembly comprises a gantry frame stretching across the two sides of the base, and a pressing plate, a heating plate and a contact plate which are sequentially arranged downwards in the gantry frame; a hot-pressing air cylinder is arranged above the gantry frame, the hot-pressing air cylinder penetrates through the top of the gantry frame and then is fixed to the pressing plate, and the bottom space of the contact plate covers the head positioning groove area during hot pressing. According to the utility model, the problems of lack of an integrated simultaneous hot-pressing structure, low processing efficiency and low hot-pressing uniformity in the bending and heating process of the FPC in the prior art are solved.

Description

Technical Field

[0001] This utility model relates to the field of FPC processing and manufacturing, and in particular to a bending and hot pressing integrated pressure holding fixture for FPC processing. Background Technology

[0002] In the final stage of FPC processing, the head of the FPC is bent at the welding point, and then reheated in a furnace to set the shape of the bent area. Current technology commonly involves manually bending the FPC before hot pressing it in a heating zone. However, the hot pressing process directly presses down on the bent area before heating, which can easily cause downward folding due to springback. Furthermore, since pressing and heating are not performed simultaneously, the final bending angle of the FPC is not uniform, affecting the overall FPC processing quality.

[0003] In view of this, this technical solution proposes a bending and hot pressing integrated pressure holding fixture for FPC processing. It adopts a special fixture for shaping after bending, and heats up while pressing down. This not only simplifies the entire hot pressing process, but also ensures high uniformity of hot pressing effect, improves hot pressing quality and enhances overall processing efficiency. Utility Model Content

[0004] The present invention aims to at least partially solve one of the technical problems in the related technologies. Therefore, the main objective of this invention is to provide an integrated bending and hot-pressing pressure-holding fixture for FPC processing, aiming to solve the problems of low processing efficiency and poor hot-pressing uniformity in the existing FPC bending and heating processes, which lack an integrated hot-pressing structure.

[0005] To achieve the above objectives, this utility model provides a bending and hot-pressing integrated pressure-holding fixture for FPC processing, including guide rails disposed on both sides of a base and sliders mounted on the guide rails. The sliders are provided with a shaping fixture body that slides on the guide rails via a driving device. The shaping fixture body has a head positioning groove for fixing the head of the FPC body after bending. A hot-pressing assembly is disposed above the shaping fixture body.

[0006] The hot pressing assembly includes a gantry frame spanning both sides of the base, and a pressure plate, a heating plate, and a contact plate arranged sequentially downwards in the gantry frame. A hot pressing cylinder is provided above the gantry frame. The hot pressing cylinder passes through the top of the gantry frame and is fixed to the pressure plate. The bottom space of the contact plate covers the head positioning groove area during hot pressing.

[0007] As a further embodiment of this utility model, the head positioning groove is provided with a shaping component for bending and shaping the head of the FPC body, and the tail of the shaping fixture body is provided with a tail positioning groove for fixing the tail of the FPC body.

[0008] As a further embodiment of this utility model, the hot-press cylinder is provided with sliding rods on both sides, the sliding rods passing through the top of the gantry frame and connected to the pressure plate.

[0009] As a further improvement of this utility model, the heating plate is a plug-in heating structure with heating holes.

[0010] As a further embodiment of this utility model, the shaping component is a thin metal sheet structure formed by one-time bending.

[0011] As a further embodiment of this utility model, the main body of the shaping fixture and each component on the main body are provided in two on the base, and are arranged symmetrically with the hot pressing assembly as the center.

[0012] The beneficial effects of this utility model are as follows:

[0013] This utility model proposes a bending and hot-pressing integrated pressure-holding fixture for FPC processing. Through the setting of an automatic sliding base and a hot-pressing integrated component that cooperates with the head positioning groove of the shaping fixture body on the base, it realizes a high degree of automation in the hot pressing of the FPC bending part. The heating and pressing actions are integrated into an axial module (the pressure plate, heating plate and contact plate arranged in sequence), which reduces the space occupation. In addition, with the shaping component, it ensures that the FPC head is always in a bent and shaped state during hot pressing, thereby improving the hot pressing quality and processing consistency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the technical solutions of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the disassembled main body and base of the shaping fixture in this utility model.

[0016] Figure 2 This is a schematic diagram showing how the shaping component in this utility model fixes the bent part of the FPC body.

[0017] Figure 3 This is an enlarged schematic diagram of the components and local structures of the hot-pressing assembly in this utility model.

[0018] Figure 4 This is an enlarged schematic diagram of the head positioning groove and the tail positioning groove of the main body of the shaping fixture in this utility model.

[0019] Figure 5 This is a schematic diagram of the overall structure of the fixture after assembly.

[0020] [Explanation of Markings on Main Components / Assemblies]

[0021] label name label name 1 base 3 Hot-pressed components 10 guide 30 Gantry frame 11 slider 31 Hot press cylinder 12 drive unit 32 slide bar 2 The main body of the shaping fixture 33 pressure plate 20 Head positioning groove 34 heating plate 21 Tail positioning groove 340 Heating hole 22 FPC main body 35 Contact plate 23 Standard parts Detailed Implementation

[0022] as follows:

[0023] Please see the appendix Figure 1-5 ,

[0024] The main structure includes guide rails 10 on both sides of the base 1 and sliders 11 mounted on the guide rails 10. The sliders 11 are provided with a shaping fixture body 2 that slides on the guide rails 10 via a drive device 12. The shaping fixture body 2 has a head positioning groove 20 for fixing the head of the FPC body 22 after bending. A hot pressing assembly 3 is provided above the shaping fixture body 2. The hot pressing assembly 3 includes a gantry frame 30 spanning both sides of the base 1, and a pressure plate 33, a heating plate 34 and a contact plate 35 arranged downward in sequence in the gantry frame 30. A hot pressing cylinder 31 is provided above the gantry frame 30. The hot pressing cylinder 31 passes through the top of the gantry frame 30 and is fixed to the pressure plate 33. The bottom space of the contact plate 35 covers the head positioning groove 20 area during hot pressing.

[0025] The working principle is as follows:

[0026] During operation, the heads of each FPC body 22 are placed in the head positioning grooves 20 of the shaping fixture body 2 (after bending, and the tails of the FPC body 22 can be placed in the tail positioning grooves 21). Then, through the cooperation of the drive device 12 on the base 1 and the guide rails 10 and sliders 11, the entire shaping fixture body 2 carrying the FPC body 22 is sent to the hot pressing area. The hot pressing operation is realized by the hot pressing assembly 3. During this operation, the hot pressing cylinder 31 on the gantry frame 30 moves downward, sequentially pushing the pressure plate 33, heating plate 34 and contact plate 35 below. Finally, the contact plate 35 directly presses against the head positioning grooves 20. At the same time as pressing, due to the heating characteristics of the heating plate 34, the head of the FPC body 22 is heated and shaped while being pressed. After the hot pressing operation is completed, the hot pressing cylinder 31 retracts, and the guide rails 10, sliders 11 and drive device 12 prepare for the next operation, and so on in a cycle.

[0027] In a preferred embodiment of this utility model, the head positioning groove 20 is provided with a shaping component 23 (the shaping component 23 is a thin metal sheet structure) for bending and shaping the head of the FPC body 22, and the tail of the shaping fixture body 2 is provided with a tail positioning groove 21 for fixing the tail of the FPC body 22.

[0028] The shaping component 23 is a thin sheet structure. After the head of the FPC body 22 is bent, the shaping component 23 is placed in the sandwich formed by the bending, so that the bending state of the head of the FPC body 22 remains the same during hot pressing (bending degree is maintained). The tail positioning groove 21 is provided to fix the tail of the FPC body 22 and prevent it from bending.

[0029] In a preferred embodiment of this utility model, the hot press cylinder 31 is provided with slide rods 32 on both sides, the slide rods 32 pass through the top of the gantry frame 30 and are connected to the pressure plate 33.

[0030] The sliding rod 32 is designed to maintain the smoothness and precision of the downward pressing action and prevent deviation.

[0031] In a preferred embodiment of this utility model, the heating plate 34 is a plug-in heating structure with heating holes 340.

[0032] The heating structure is plug-in type, that is, the heating plate 34 is heated by inserting a heating wire or heating rod into the heating hole 340.

[0033] In a preferred embodiment of this utility model, the shaping fixture body 2 and its components are provided on the base 1 in two ways, and are arranged symmetrically with the hot pressing assembly 3 as the center.

[0034] The fixture body 2 is provided with two mirror-arranged shaping fixtures, which means that two sets of hot pressing actions can be performed at one time, thereby improving the efficiency of hot pressing and the consistency of processing quality.

[0035] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. Any equivalent structural transformations made using the contents of the present utility model specification and drawings under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A bending and hot-pressing integrated pressure-holding fixture for FPC processing, characterized in that, include Guide rails are provided on both sides of the base, and sliders are mounted on the guide rails. The sliders are provided with a shaping fixture body that slides on the guide rails via a driving device. The shaping fixture body has a head positioning groove for fixing the head of the FPC body after bending. A hot pressing assembly is provided above the shaping fixture body. The hot pressing assembly includes a gantry frame spanning both sides of the base, and a pressure plate, a heating plate, and a contact plate arranged sequentially downwards in the gantry frame. A hot pressing cylinder is provided above the gantry frame. The hot pressing cylinder passes through the top of the gantry frame and is fixed to the pressure plate. The bottom space of the contact plate covers the head positioning groove area during hot pressing.

2. The bending and hot-pressing integrated pressure-holding fixture for FPC processing according to claim 1, characterized in that, The head positioning groove is provided with a shaping component for bending and shaping the head of the FPC body, and the tail of the shaping fixture body is provided with a tail positioning groove for fixing the tail of the FPC body.

3. The bending and hot-pressing integrated pressure-holding fixture for FPC processing according to claim 1, characterized in that, The hot-press cylinder is provided with sliding rods on both sides, which pass through the top of the gantry frame and are connected to the pressure plate.

4. The bending and hot-pressing integrated pressure-holding fixture for FPC processing according to claim 1, characterized in that, The heating plate is a plug-in heating structure with heating holes.

5. The bending and hot-pressing integrated pressure-holding fixture for FPC processing according to claim 2, characterized in that, The shaping component is a thin metal sheet structure formed by bending in one step.

6. The bending and hot-pressing integrated pressure-holding fixture for FPC processing according to claim 1, characterized in that, The shaping fixture body and its components are provided on the base in two ways, and are arranged symmetrically with the hot pressing assembly as the center.

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