Frame cutting device for flexible circuit board

Abstract

The utility model discloses a flexible circuit board's outer frame cutting device relates to cutting device technical field. Include: lower mould and upper die, the upper die sets in the just above of lower mould, and the upper die is used for the flexible circuit board to the lower mould pressure, and the lower mould includes: base, adjustable cutting device, adjustable cutting device installs in the top of base, and adjustable cutting device is used for the cutting of flexible circuit board, adjusting device, adjusting device symmetry sets up in the both sides of base, and adjusting device is used for the adjustment of adjustable cutting device. The cutting device, through adjusting device drive the position of mobile mode and carry out linear motion, to be able to adjust the relative position between mobile mode and fixed mode between mobile mode and fixed mode, and the flexible adjustment of relative position between mobile mode and fixed mode is realized, and then can adjust the cutting position of cutting knife according to the specification of flexible circuit board and the edge deviation after multilayer product accumulates.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically a cutting device for the outer frame of a flexible circuit board. Background Technology

[0002] In the manufacturing process of flexible printed circuit boards (FPCBs), multilayer lamination is a crucial step in achieving high-density circuit integration. However, due to the susceptibility of multilayer substrates to uneven pressure and positioning errors during lamination, lamination misalignment often occurs, resulting in uneven edges on the laminated FPCBs. This unevenness not only affects the appearance quality of the FPCB but can also lead to poor connections and signal transmission interference in subsequent assembly and soldering processes. Therefore, it is essential to trim the edges through an outer frame trimming process to ensure the dimensional accuracy and performance of the product.

[0003] Currently, the industry mostly uses fixed cutting devices for cutting the outer frame of multi-layer flexible circuit boards. These devices have a fixed cutting position, making it difficult to adapt to the cutting needs of flexible circuit boards of different specifications. When processing multi-layer products of different sizes or with different offsets, it is often necessary to replace the entire set of cutting dies or make complex mechanical adjustments to the equipment. This is not only cumbersome and time-consuming, but also prone to reducing cutting accuracy due to frequent changes or adjustments, affecting production efficiency and product consistency.

[0004] Therefore, designing a frame cutting device that can flexibly adjust the cutting position and adapt to various specifications of flexible circuit boards has become the key to solving the current problem of cutting multi-layer product frames, improving production efficiency and product quality. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible circuit board frame cutting device, comprising: a lower mold and an upper mold, wherein the upper mold is disposed directly above the lower mold, and the upper mold is used to press the flexible circuit board down to the lower mold; the lower mold comprises:

[0006] Base;

[0007] An adjustable cutting device is mounted on the top of a base and is used for cutting flexible circuit boards.

[0008] An adjustment device is symmetrically arranged on both sides of the base, and the adjustment device is used to adjust the adjustable cutting device.

[0009] Preferably, the adjustable cutting device includes:

[0010] A fixing mold is fixedly installed on the upper surface of the base, and the fixing mold is used to support the flexible circuit board;

[0011] A movable module, wherein the movable module is movably disposed on both sides of the fixed module;

[0012] The splicing mechanism has mounting grooves on both the fixed mold and the moving mold on opposite sides. The splicing mechanism is installed between the fixed mold and the moving mold, and when splicing, the splicing mechanism is assembled inside the mounting groove.

[0013] Preferably, the adjustable cutting device further includes:

[0014] The cutting blade is fixedly embedded inside the movable mold, and the cutting edge of the cutting blade is vertically oriented towards the upper mold.

[0015] Preferably, the splicing mechanism includes:

[0016] The first splicing strip, one end of which is fixedly connected to the moving module;

[0017] The second splicing strip has one end fixedly connected to the fixed mold, and the first splicing strip and the second splicing strip are in an alternating sliding fit state;

[0018] An insert post is slidably inserted into the interior of the first and second splicing strips, and one end of the insert post is fixedly connected to the inner wall of the mounting groove.

[0019] Preferably, the adjusting device includes:

[0020] A lead screw, which is rotatably connected to the side of the base via a bearing;

[0021] The movable block has a groove on the top of the base, and the movable block is movably disposed inside the groove. The movable block is connected to the lead screw through a nut seat, and the top of the movable block is fixedly connected to the movable mold. A guide rod is slidably connected to the movable block, and the guide rod is fixedly installed inside the groove.

[0022] Preferably, the lower mold has multiple positioning pins vertically interspersed inside, and the positioning pins are interspersed between the base and the fixed mold.

[0023] Preferably, the lower mold has an internal cavity, and an elastic ejector mechanism is movably disposed inside the cavity. The elastic ejector mechanism includes:

[0024] Top pin, wherein the top pin is movably disposed inside the cavity;

[0025] A spring is fixedly installed at the bottom of the cavity and serves as elastic support for the top pin.

[0026] Preferably, the lower mold has multiple connecting screws arranged vertically inside, which are used to install and fix the relative position between the base and the fixed mold.

[0027] This utility model discloses a flexible circuit board outer frame cutting device, which has the following beneficial effects:

[0028] By adjusting the position of the moving mold through a linear motion, the relative position between the moving and fixed molds can be adjusted. This allows for flexible adjustment of the cutting position of the cutting blade according to the specifications of the flexible circuit board, enabling adjustments to the cutting position based on the specifications of the flexible circuit board and the edge offset after multilayer stacking. Compared to traditional fixed cutting methods, this eliminates the need to replace the entire set of cutting molds, effectively solving the problems of fixed cutting positions and difficulty in adapting to the cutting needs of flexible circuit boards of different specifications. Because the cutting position of the cutting blade can be flexibly adjusted, this device can adapt to the outer frame cutting needs of various sizes and offsets of multilayer flexible circuit boards, expanding the applicability of the device, reducing the number of dedicated cutting molds required due to product specification changes, and lowering the investment cost of production equipment. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the internal structure of the adjusting device of this utility model;

[0033] Figure 4 This is a three-dimensional structural diagram of the splicing mechanism of this utility model.

[0034] In the diagram: 1. Base; 11. Positioning pin; 12. Elastic ejector mechanism; 121. Ejector pin; 122. Spring; 13. Connecting screw; 2. Adjustable cutting device; 21. Fixed mold; 22. Moving mold; 23. Splicing mechanism; 231. First splicing strip; 232. Second splicing strip; 233. Through-hole column; 24. Cutting blade; 3. Adjusting device; 31. Lead screw; 32. Moving block; 4. Upper mold. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] This utility model provides, for example Figure 1-4 The device for cutting the outer frame of a flexible circuit board shown includes: a lower mold and an upper mold 4. The upper mold 4 is located directly above the lower mold and is used to press the flexible circuit board down to the lower mold. The lower mold includes: a base 1; an adjustable cutting device 2, which is installed on the top of the base 1 and is used to cut the flexible circuit board; and an adjustment device 3, which is symmetrically arranged on both sides of the base 1 and is used to adjust the adjustable cutting device 2.

[0038] Example 1

[0039] The adjustable cutting device 2 includes: a fixed mold 21, which is fixedly installed on the upper surface of the base 1 and is used to support the flexible circuit board; a movable mold 22, which is movably disposed on both sides of the fixed mold 21; a splicing mechanism 23, which has mounting grooves on the opposite sides of the fixed mold 21 and the movable mold 22, and is installed between the fixed mold 21 and the movable mold 22, and is assembled inside the mounting groove when spliced; and a cutting blade 24, which is fixedly embedded in the movable mold 21. Inside the moving mold 22, with the cutting blade 24 vertically facing the upper mold 4, the moving mold 22 is moved linearly by the adjusting device 3. This allows for adjustment of the relative position between the moving mold 22 and the fixed mold 21, enabling the cutting position of the cutting blade 24 to be adjusted according to the specifications of the flexible circuit board. This achieves flexible adjustment of the relative position between the moving mold 22 and the fixed mold 21, and further allows for adjustment of the cutting position of the cutting blade 24 based on the specifications of the flexible circuit board and the edge offset after multilayer stacking. Compared to the traditional fixed cutting method, it eliminates the need to replace the entire cutting mold, effectively solving the problems of fixed cutting position and difficulty in adapting to the cutting needs of flexible circuit boards of different specifications. Because the cutting position of the cutting blade 24 can be flexibly adjusted, the device can adapt to the outer frame cutting needs of flexible circuit boards of various sizes and offsets, thus expanding the applicability of the device, reducing the number of special cutting molds required due to changes in product specifications, and lowering the investment cost of production equipment. The moving mold 22 facilitates the synchronous movement of the cutting blade 24 to achieve the cutting of flexible circuit boards of various sizes.

[0040] Specifically, the splicing mechanism 23 includes: a first splicing strip 231, one end of which is fixedly connected to the movable mold 22; a second splicing strip 232, one end of which is fixedly connected to the fixed mold 21, and the first splicing strip 231 and the second splicing strip 232 are in an alternating sliding fit; and an insert post 233, which is slidably inserted into the interior of the first splicing strip 231 and the second splicing strip 232, and one end of which is fixedly connected to the inner wall of the mounting groove. The staggered arrangement between the first splicing strip 231 and the second splicing strip 232 allows for the splicing of flexible circuit boards of various specifications. The sliding interlocking between the insert post 233 and the first splicing strip 231 and the second splicing strip 232 facilitates the limiting of the relative sliding of the first splicing strip 231 and the second splicing strip 232, making the position adjustment of the first splicing strip 231 and the second splicing strip 232 more stable.

[0041] The lower mold has multiple vertically interspersed positioning pins 11, which are interspersed between the base 1 and the fixed mold 21. The positioning pins 11 facilitate the interspersed positioning of the relative positions between the base 1 and the fixed mold 21, resulting in higher installation accuracy between the base 1 and the fixed mold 21.

[0042] The lower mold has an internal cavity, and an elastic ejector mechanism 12 is movably installed inside the cavity. The elastic ejector mechanism 12 includes: an ejector pin 121, which is movably installed inside the cavity; and a spring 122, which is fixedly installed at the bottom of the cavity and provides elastic support for the ejector pin 121. The cavity facilitates the installation of the ejector pin 121 and the spring 122, and the spring 122 provides elastic support for the ejector pin 121, giving the ejector pin 121 an upward tendency to move, thereby facilitating the upward lifting of the flexible circuit board.

[0043] The lower mold has multiple vertically inserted connecting screws 13 inside. The connecting screws 13 are used to install and fix the relative position between the base 1 and the fixed mold 21. The fixed mold 21 has threaded holes. After the connecting screws 13 pass through the base 1, they cooperate with the inner cavity of the threaded holes, thereby realizing the installation and fixation of the relative position between the base 1 and the fixed mold 21.

[0044] Example 2

[0045] Based on Embodiment 1, the adjusting device 3 includes: a lead screw 31, which is rotatably connected to the side of the base 1 via a bearing; a moving block 32, which has a groove on the top of the base 1 and is movably disposed inside the groove. The moving block 32 is threadedly connected to the lead screw 31 via a nut seat, and the top of the moving block 32 is fixedly connected to the moving mold 22. A guide rod is slidably connected to the moving block 32 and is fixedly installed inside the groove. The lead screw 31 transmits power to the moving block 32 through rotational movement, and the rotational movement is converted into linear movement of the moving block 32 by the threaded engagement between the lead screw 31 and the moving block 32. Because the threaded drive has the characteristics of high precision and micro-adjustment, it can drive the connected moving mold 22 to move precisely, thereby achieving precise control of the cutting position of the cutting blade 24, meeting the cutting precision requirements of flexible circuit boards of different specifications. The guide rod facilitates the movement limit of the moving block 32, making the linear motion of the moving block 32 more stable. The opening of the slide groove facilitates the sliding space of the moving block 32.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board frame cutting device, characterized in that, include: A lower mold and an upper mold (4), wherein the upper mold (4) is disposed directly above the lower mold, and the upper mold (4) is used to press the flexible circuit board into the lower mold. The lower mold includes: Base (1); An adjustable cutting device (2) is installed on the top of the base (1) and is used to cut flexible circuit boards. Adjustment device (3) is symmetrically arranged on both sides of the base (1) and is used to adjust the adjustable cutting device (2).

2. The flexible circuit board frame cutting device according to claim 1, characterized in that, The adjustable cutting device (2) includes: A fixed mold (21) is fixedly installed on the upper surface of the base (1) and is used to support the flexible circuit board. The movable module (22) is movably disposed on both sides of the fixed module (21); The splicing mechanism (23) has an installation groove on one side of the fixed mold (21) and the moving mold (22). The splicing mechanism (23) is installed between the fixed mold (21) and the moving mold (22), and the splicing mechanism (23) is assembled inside the installation groove when splicing.

3. The flexible circuit board frame cutting device according to claim 2, characterized in that, The adjustable cutting device (2) also includes: The cutting blade (24) is fixedly embedded inside the movable mold (22), and the cutting edge of the cutting blade (24) is set vertically towards the upper mold (4).

4. The flexible circuit board frame cutting device according to claim 2, characterized in that, The splicing mechanism (23) includes: The first splicing strip (231) has one end fixedly connected to the moving module (22); The second splicing strip (232) has one end fixedly connected to the fixed mold (21), and the first splicing strip (231) and the second splicing strip (232) are in an alternating sliding fit state; The insert post (233) is slidably inserted into the interior of the first splicing strip (231) and the second splicing strip (232), and one end of the insert post (233) is fixedly connected to the inner wall of the mounting groove.

5. The flexible circuit board frame cutting device according to claim 1, characterized in that, The regulating device (3) includes: A lead screw (31) is rotatably connected to the side of the base (1) via a bearing; The movable block (32) has a groove on the top of the base (1). The movable block (32) is movably disposed inside the groove. The movable block (32) is threadedly connected to the lead screw (31) through a nut seat. The top of the movable block (32) is fixedly connected to the movable mold (22). A guide rod is slidably connected to the movable block (32). The guide rod is fixedly installed inside the groove.

6. The flexible circuit board frame cutting device according to claim 1, characterized in that, The lower mold has multiple positioning pins (11) arranged vertically inside, and the positioning pins (11) are arranged between the base (1) and the fixed mold (21).

7. The flexible circuit board frame cutting device according to claim 1, characterized in that, The lower mold has an internal cavity, and an elastic ejector mechanism (12) is movably disposed inside the cavity. The elastic ejector mechanism (12) includes: Top pin (121), the top pin (121) is movably disposed inside the cavity; A spring (122) is fixedly installed at the bottom of the cavity and is used to provide elastic support for the top pin (121).

8. The flexible circuit board frame cutting device according to claim 1, characterized in that, The lower mold has multiple connecting screws (13) arranged vertically inside, which are used to install and fix the relative position between the base (1) and the fixed mold (21).

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