Single-point die for PCB multi-layer interconnection precision circuit

By designing a single-blade mold for a multi-layer interconnected precision circuit on a PCB, an innovative approach was adopted to solve the problems of poor stability and loosening caused by excessively long blade shank length in existing technologies, thereby improving the stability and safety of the blade body.

CN224935863UActive Publication Date: 2026-11-03SHENZHEN ZHONGFU CIRCUIT CO LTD
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Patent Information

Application Number
CN202522371828.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-08
Publication Date
2026-11-03
Estimated Expiration
2035-11-08

AI Technical Summary

Technical Problem

In the existing technology, adjusting the blade handle length too long leads to poor stability and lacks a fastening structure, making it easy to loosen and affecting the processing stability of precision circuits with multi-layer interconnection on PCBs.

Method used

A single-blade mold comprising a blade handle structure and a blade body structure was designed. It employs fastening and adjusting components. The blade body length is adjusted by the adjusting components, and stability is enhanced by fastening bolts and hammers. Combined with the design of limit blocks and telescopic springs, the stability and safety of the blade body during use are ensured.

Benefits of technology

The stability and applicability of the tool body have been improved, the safety and ease of use of the tool body have been enhanced, and its applicability and suitability in PCB processing have been ensured.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of PCB processing, and disclose a single blade mould of PCB multilayer interconnection precision circuit, including knife edge handle structure and sword body structure, the knife edge handle structure includes the connecting frame, the connecting frame top fixedly arranged with fixed sleeve and fastening assembly. This single blade mould of PCB multilayer interconnection precision circuit, when using sword body, will two moving arc plates move upwards, after moving to the limit position of guide rod, the reset operation of telescopic spring is carried out, to drive arc fastening plate to move to the direction of connecting column and be close to the outer wall of connecting column, played close fixed operation, after use, when need to store connecting column, through pulling the moving handle of moving arc plate outside, telescopic spring contracts, drives arc fastening plate to move outward, then will moving arc plate move down and be collected to the outside of fixed sleeve, can carry out reset operation to connecting column at this moment, it is very convenient and fast, has improved the stability and security when using sword body.
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Description

Technical Field

[0001] This utility model relates to the field of PCB processing technology, specifically a single-blade mold for multilayer interconnect precision circuits on PCBs. Background Technology

[0002] Circuit boards are named as follows: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed circuit board (copper etching technology), etc. Circuit boards miniaturize and visualize circuits, playing an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit boards can also be called printed circuit boards or printed circuit boards, with English names including (Printed Circuit Board) PCB and (Flexible Printed Circuit Board) FPC (also known as flexible circuit board). Flexible circuit boards are highly reliable and extremely flexible printed circuit boards made with polyimide or polyester film as the substrate. Circuit boards are classified into three main categories according to the number of layers: single-sided, double-sided, and multi-layer circuit boards.

[0003] First, there's the single-sided PCB. In the most basic PCB, components are concentrated on one side, while traces are on the other. Because the traces only appear on one side, this type of PCB is called a single-sided circuit board. Single-sided PCBs are generally simple to manufacture and inexpensive, but their disadvantage is that they cannot be used in very complex products.

[0004] Double-sided boards are an extension of single-sided boards. They are used when single-layer wiring cannot meet the needs of electronic products. Both sides have copper cladding and traces, and vias can be used to connect the two layers, forming the required network connections.

[0005] A multilayer board is a printed circuit board consisting of three or more conductive pattern layers laminated with insulating materials in between, and the conductive patterns are interconnected as required. Multilayer circuit boards are a product of the development of electronic information technology towards high speed, multifunctionality, large capacity, small size, thinness, and lightweight. Circuit boards can be classified according to their characteristics into flexible printed circuit boards (FPC), rigid printed circuit boards (PCB), and rigid-flex PCBs (FPCB). In the precision processing of multilayer interconnected PCBs, single-blade dies are used to cut them.

[0006] In the prior art, adjusting the blade handle length too much will lead to a decrease in the overall stability of the blade body. At the same time, there is no additional fastening structure for the blade handle, which is prone to loosening after long-term use. Therefore, a single-blade mold for PCB multilayer interconnect precision circuit is proposed to solve the problems mentioned in the background. Utility Model Content

[0007] The purpose of this invention is to provide a single-blade mold for multilayer interconnect precision circuits on PCBs, so as to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a single-blade mold for PCB multilayer interconnect precision circuits, including a blade handle structure and a blade body structure. The blade handle structure includes a connecting frame, a fixed sleeve and a fastening component are fixedly provided on the top of the connecting frame, two moving grooves are opened on the inner wall of the fixed sleeve, a moving block is slidably arranged in each of the two moving grooves, a connecting post is provided between the two moving blocks, and an adjustment component is provided inside the fixed sleeve.

[0009] The fastening assembly includes two guide rods fixedly connected to the top of the connecting frame. Each of the two guide rods is slidably connected to a movable arc plate. Each of the two movable arc plates has two telescopic springs fixedly installed on opposite sides. The other ends of the four telescopic springs are respectively connected to two arc-shaped fastening plates. Each of the two arc-shaped fastening plates has a movable rod fixedly installed on its outer side.

[0010] Preferably, the blade structure includes a hammer head fixedly connected to the top of the connecting column, a blade body is fixedly disposed on the left side of the hammer head, and a fastening bolt is fixedly disposed on the top of the hammer head.

[0011] By setting a hammer head and fastening bolts, the other side of the blade can be used as a hammer head, increasing the blade's applicability. The fastening bolts further secure the hammer head and connecting column, improving the overall stability of the blade structure during use.

[0012] Preferably, the adjustment assembly includes a threaded rod that is threadedly connected to the connecting column, and the other end of the threaded rod passes through the connecting frame and is fixedly connected to a rotating knob.

[0013] By setting an adjustment component, the threaded rod can be rotated by turning the knob at the bottom of the connecting frame, which in turn causes the connecting column to move the entire blade structure upward, thereby increasing the overall length of the blade and further improving the applicable environment and scope of the blade.

[0014] Preferably, a limit block is fixedly provided at the top end of both guide rods.

[0015] A limiting block is fixed at the top of the guide rod to limit the up and down movement of the movable arc plate, preventing the movable arc plate from falling off the guide rod due to excessive movement.

[0016] Preferably, the other ends of both movable rods pass through the corresponding movable arc plate and are fixedly connected to a movable handle.

[0017] The addition of a movable handle makes it easier and faster for workers to retract the curved fastening plate.

[0018] Compared with the prior art, this utility model provides a single-blade mold for precision circuits of multilayer interconnection on PCBs, which has the following beneficial effects:

[0019] 1. This single-blade mold for multi-layer interconnect precision circuits on PCBs, through the setting of fastening and adjustment components, allows for adjustment of the position of the connecting post during use, thereby changing the overall length of the blade. After adjusting to the appropriate length, the two moving arc plates are moved upwards to the guide rod limit position, where the telescopic spring resets, causing the arc-shaped fastening plate to move towards the connecting post and fit tightly against the outer wall of the connecting post, ensuring the stability of the overall structure during blade use. When the connecting post needs to be stored after use, the moving handle on the outside of the moving arc plate is pulled, the telescopic spring retracts, and the arc-shaped fastening plate moves outwards. Then, the moving arc plate is moved downwards and retracted to the outside of the fixed sleeve, allowing for the resetting of the connecting post. This convenient and quick process improves the stability and safety of the blade during use.

[0020] 2. The single-blade mold of the PCB multilayer interconnect precision circuit, by setting a hammer head and fastening bolts, enables the blade body to simultaneously possess the hammering function of the hammer head, and at the same time, the fastening bolts provide secondary fastening to the blade body structure, ensuring the stability of the blade body structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 .

[0024] The components include: 1. Blade handle structure; 11. Connecting frame; 12. Fixed sleeve; 13. Moving groove; 14. Moving block; 15. Connecting column; 2. Blade body structure; 21. Hammer head; 22. Blade body; 23. Fastening bolt; 3. Fastening assembly; 31. Guide rod; 32. Moving arc plate; 33. Telescopic spring; 34. Arc-shaped fastening plate; 35. Moving rod; 36. Moving handle; 37. Limiting block; 4. Adjusting assembly; 41. Threaded rod; 42. Rotating knob. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 The present invention provides the following technical solution: a single-blade mold for PCB multilayer interconnect precision circuit, including a blade handle structure 1 and a blade body structure 2. The blade handle structure 1 includes a connecting frame 11. A fixed sleeve 12 and a fastening component 3 are fixedly provided on the top of the connecting frame 11. Two moving grooves 13 are opened on the inner wall of the fixed sleeve 12. Moving blocks 14 are slidably arranged in both moving grooves 13. A connecting post 15 is provided between the two moving blocks 14. An adjustment component 4 is provided inside the fixed sleeve 12.

[0027] The fastening assembly 3 includes two guide rods 31 fixedly connected to the top of the connecting frame 11. Each guide rod 31 is slidably connected to a movable arc plate 32. Each movable arc plate 32 is fixedly provided on one side opposite to the other two sides. The other ends of the four telescopic springs 33 are respectively connected to two arc-shaped fastening plates 34. Each arc-shaped fastening plate 34 is fixedly provided with a movable rod 35 on its outer side.

[0028] Through the above technical solution, by setting the fastening component 3 and the adjusting component 4, the position of the connecting post 15 can be adjusted by the adjusting component 4 when using the blade, thereby changing the overall length of the blade. After adjusting to the appropriate length, the two moving arc plates 32 are moved upwards until they reach the limit position of the guide rod 31. Then, the telescopic spring 33 performs a reset operation, thereby driving the arc-shaped fastening plate 34 to move towards the connecting post 15 and fit tightly against the outer wall of the connecting post 15. This ensures a tight and fixed operation, guaranteeing the stability of the overall structure when using the blade. When the connecting post 15 needs to be stored after use, the moving handle 36 on the outside of the moving arc plate 32 is pulled, the telescopic spring 33 retracts, and the arc-shaped fastening plate 34 moves outwards. Then, the moving arc plate 32 is moved downwards and retracted to the outside of the fixed sleeve 12. At this time, the connecting post 15 can be reset, which is very convenient and quick, improving the stability and safety of the blade during use.

[0029] Specifically, the blade structure 2 includes a hammer head 21 fixedly connected to the top of the connecting column 15, a blade body 22 fixedly disposed on the left side of the hammer head 21, and a fastening bolt 23 fixedly disposed on the top of the hammer head 21.

[0030] Through the above technical solution, by setting the hammer head 21 and fastening bolt 23, the other side of the blade body can be used as the hammer head 21, increasing the applicability of the blade body. The fastening bolt 23 provides secondary fixation to the hammer head 21 and the connecting column 15, further improving the overall stability of the blade body structure 2 during use. By setting the hammer head 21 and fastening bolt 23, the blade body simultaneously possesses the hammering function of the hammer head 21. At the same time, the fastening bolt 23 provides secondary fixation to the blade body structure 2, ensuring the stability of the blade body structure 2.

[0031] Specifically, the adjustment component 4 includes a threaded rod 41 that is threadedly connected to the connecting post 15, and the other end of the threaded rod 41 passes through the connecting frame 11 and is fixedly connected to a rotating knob 42.

[0032] Through the above technical solution, by setting the adjustment component 4, the threaded rod 41 can be driven to rotate by rotating the rotating knob 42 at the bottom of the connecting frame 11, thereby causing the connecting column 15 to drive the entire blade structure 2 to move upward, thereby increasing the overall length of the blade and further improving the applicable environment and scope of the blade.

[0033] Specifically, limit blocks 37 are fixedly installed at the top of both guide rods 31.

[0034] Through the above technical solution, a limiting block 37 is fixedly set at the top of the guide rod 31, which can limit the up and down movement of the movable arc plate 32 and prevent the movable arc plate 32 from falling off the guide rod 31 due to excessive movement.

[0035] Specifically, the other ends of both moving rods 35 pass through the corresponding moving arc plates 32 and are fixedly connected to moving handles 36.

[0036] The above technical solution makes it easier and faster for workers to retract the arc-shaped fastening plate 34 by setting up a movable handle 36.

[0037] The connecting bracket 11 is connected to the drive device. The bottom of the connecting bracket is provided with a threaded groove, which can be used to connect to the output end of the drive device to complete the assembly.

[0038] When using the blade body 22, rotating the knob 42 at the bottom of the connecting frame 11 causes the threaded rod 41 to rotate, which in turn causes the connecting column 15 to move the entire blade body structure 2 upward, thus increasing the overall length of the blade body 22. After adjusting to the appropriate length, the two movable arc plates 32 are moved upward until they reach the limit position of the guide rod 31. Then, the telescopic spring 33 resets, causing the arc-shaped fastening plate 34 to move towards the connecting column 15 and fit tightly against the outer wall of the connecting column 15, thus achieving a tight fit and ensuring the stability of the overall structure when using the blade body 22. After use, when it is necessary to store the connecting column 15, the movable handle 36 on the outside of the movable arc plate 32 is pulled, causing the telescopic spring 33 to retract and move the arc-shaped fastening plate 34 outward. Then, the movable arc plate 32 is moved downward and returned to the outside of the fixed sleeve 12, at which point the connecting column 15 can be reset, which is very convenient and quick.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-blade mold for multilayer interconnect precision circuits on a PCB, comprising a blade shank structure (1) and a blade body structure (2), characterized in that: The blade handle structure (1) includes a connecting frame (11), a fixed sleeve (12) and a fastening component (3) are fixedly installed on the top of the connecting frame (11), two moving grooves (13) are opened on the inner wall of the fixed sleeve (12), a moving block (14) is slidably installed in each of the two moving grooves (13), a connecting post (15) is provided between the two moving blocks (14), and an adjusting component (4) is provided in the fixed sleeve (12). The fastening assembly (3) includes two guide rods (31) fixedly connected to the top of the connecting frame (11). Each of the two guide rods (31) is slidably connected to a movable arc plate (32). Each of the two movable arc plates (32) is fixedly provided with two telescopic springs (33) on opposite sides. The other ends of the four telescopic springs (33) are respectively connected to two arc-shaped fastening plates (34). Each of the two arc-shaped fastening plates (34) is fixedly provided with a movable rod (35) on its outer side.

2. The single-blade mold for a PCB multilayer interconnect precision circuit according to claim 1, characterized in that: The blade structure (2) includes a hammer head (21) fixedly connected to the top of the connecting column (15), a blade body (22) is fixedly provided on the left side of the hammer head (21), and a fastening bolt (23) is fixedly provided on the top of the hammer head (21).

3. The single-blade mold for a PCB multilayer interconnect precision circuit according to claim 1, characterized in that: The adjustment assembly (4) includes a threaded rod (41) that is threadedly connected to the connecting post (15), and the other end of the threaded rod (41) passes through the connecting frame (11) and is fixedly connected to a rotating knob (42).

4. The single-blade mold for a PCB multilayer interconnect precision circuit according to claim 1, characterized in that: Limiting blocks (37) are fixedly installed at the top of both guide rods (31).

5. The single-blade mold for a PCB multilayer interconnect precision circuit according to claim 1, characterized in that: The other ends of the two movable rods (35) pass through the corresponding movable arc plate (32) and are fixedly connected to a movable handle (36).