Thickness inspection mechanism for flexible circuit board production

Abstract

The utility model relates to the technical field of flexible circuit board production, in particular to a thickness inspection mechanism for flexible circuit board production, which comprises a base, three sliding rails are fixed at the top of the base and are uniformly distributed at the top of the base, the tops of the sliding rails are connected with adaptive electric sliding blocks in a sliding manner, and the electric sliding blocks are fixed at the bottom of the base. A carrying plate is fixedly connected to the top of the electric sliding block, a portal frame is fixedly connected to the side wall of the base, and a detection mechanism is installed in an inner cavity of the portal frame. According to the utility model, the circuit board substrate is placed on the carrier plate, then the electric slide block drives the carrier plate to move by utilizing the contact between the upper surface of the circuit board and the roll shaft, the roll shaft rotates and is lifted, and the high-precision distance sensor is utilized to feed back the numerical value of distance change to the external industrial control computer, so that the accurate detection of the thickness of the circuit board is realized; and the roll shaft is in full contact with the circuit board, so that the detection comprehensiveness is improved, and the detection accuracy is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit board production, in particular to a thickness inspection mechanism for flexible circuit board production. Background Art

[0002] Flexible circuit board is a kind of highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness and good bending performance.

[0003] In the actual production and processing of existing flexible circuit boards, various inspections need to be carried out on the substrate of the circuit board, including the thickness of the circuit board, which requires the use of corresponding thickness inspection devices. Most of the existing thickness inspection devices are calipers. The staff holds the caliper to inspect the surface of the circuit board. During the inspection process, multi-point inspection is required, which affects the inspection efficiency. In addition, despite the multi-point inspection during the inspection process, there are still blind spots, which further affects the accuracy of the circuit board inspection. Therefore, we propose a thickness inspection mechanism for the production of flexible circuit boards. Utility Model Content

[0004] The utility model aims to provide a thickness inspection mechanism for producing a flexible circuit board, which solves the problems raised in the background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a thickness inspection mechanism for flexible circuit board production, comprising a base, a slide rail is fixed on the top of the base, the number of the slide rails is three, the three slide rails are evenly distributed on the top of the base, the top of the slide rail is slidably connected with an adapted electric slider, and the top of the electric slider is fixedly connected with a carrier plate;

[0006] The side wall of the base is fixedly connected with a gantry, and the inner cavity of the gantry is installed with a detection mechanism;

[0007] The detection mechanism includes:

[0008] A horizontal plate, both ends of which are fixedly connected to the inner walls of both side walls of the gantry, three evenly distributed movable rods pass through the top of the horizontal plate, the tail ends of the movable rods are fixedly connected to a frame, a roller is rotatably installed in the inner cavity of the frame, springs are fixed on both sides of the top of the frame, the outer ends of the springs are fixedly connected to the bottom of the horizontal plate, and a high-precision distance sensor is fixed on the top of the movable rod.

[0009] By adopting the above technical solution, in actual use, the high-precision distance sensor is connected to an external industrial control computer, and the electric slider is used to move along the slide rail, so that the carrier plate and the circuit board placed on the carrier plate can be driven to move, so that the circuit board and the roller shaft are in contact, and the roller shaft is lifted, thereby driving the movable rod to move upward. At this time, the high-precision distance sensor will feedback the value of the distance change to the external industrial control computer, so as to achieve accurate measurement of the thickness of the circuit board, and the roller shaft and the circuit board are in full contact, thereby improving the comprehensiveness of the detection and ensuring the accuracy of the inspection.

[0010] As a preferred embodiment of the utility model, the carrier plate is a hollow structure, a negative pressure pump is fixedly installed on one side wall of the gantry, the outer end of the negative pressure pump is connected to the three carrier plates respectively through negative pressure pipes, and a plurality of negative pressure holes in the shape of a U-shaped hole are opened on the surface of the carrier plate.

[0011] By adopting the above technical solution, a negative pressure can be generated in the cavity of the carrier through a negative pressure pump, so that the negative pressure hole generates an adsorption force on the circuit board substrate, thereby ensuring the stability of the circuit board when the carrier drives the circuit board to contact the roller, which helps to prevent the circuit board from sliding and falling on the carrier.

[0012] As a preferred embodiment of the present invention, the vertical center planes of the three roller shafts and the vertical center planes of the three corresponding carrier plates are in the same plane.

[0013] By adopting the above technical solution, accurate contact between the roller and the circuit board on the carrier is ensured.

[0014] As a preferred embodiment of the present invention, bristles are fixed on the top of the inner cavity of the frame.

[0015] By adopting the above technical solution, bristles are arranged on the top of the inner cavity of the frame, so that the outer wall of the roller can be cleaned by rotating the roller before use to avoid the adhesion of dust and impurities, thereby further ensuring the accuracy of the detection.

[0016] As a preferred implementation mode of the utility model, the outer end of the high-precision distance sensor is arranged directly opposite to the top of the inner cavity of the gantry.

[0017] As a preferred embodiment of the present invention, mounting holes are provided at the four corners of the top of the base.

[0018] By adopting the above technical solution and setting the mounting holes, it is convenient to install and fix the entire device.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The technical solution of the present application is a thickness inspection mechanism for flexible circuit board production. The circuit board substrate is placed on a carrier, and then the electric slider drives the carrier to move so that the upper surface of the circuit board contacts the roller, the roller rotates and lifts, and a high-precision distance sensor is used to feed back the value of the distance change to an external industrial control computer, thereby accurately detecting the thickness of the circuit board, and the roller is in full contact with the circuit board, thereby improving the comprehensiveness of the detection and ensuring the accuracy of the inspection.

[0021] The negative pressure pump can generate negative pressure in the cavity of the carrier, so that the negative pressure hole generates an adsorption force on the circuit board substrate, so that the stability of the circuit board can be ensured when the carrier drives the circuit board to contact the roller, which is helpful to prevent the circuit board from sliding and falling on the carrier.

[0022] Brushes are arranged on the top of the inner cavity of the frame, so that the outer wall of the roller can be cleaned by rotating the roller before use to avoid the adhesion of dust and impurities, thereby further ensuring the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the thickness inspection mechanism for the production of flexible circuit boards of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the testing mechanism of the thickness testing mechanism for the production of flexible circuit boards of the utility model;

[0026] Figure 3 The utility model is a schematic diagram of the frame and roller connection structure of the thickness inspection mechanism for flexible circuit board production.

[0027] In the figure:

[0028] 1. Base; 11. Slide rail; 12. Electric slide block; 13. Carrier plate; 14. Negative pressure hole; 15. Negative pressure pump; 16. Mounting hole; 17. Gantry;

[0029] 2. Horizontal plate; 21. Movable rod; 22. High-precision distance sensor; 23. Frame; 24. Roller; 25. Spring; 26. Brush. DETAILED DESCRIPTION

[0030] See also Figure 1-3The utility model provides a technical solution: a thickness inspection mechanism for flexible circuit board production, comprising a base 1, a slide rail 11 is fixed on the top of the base 1, the number of the slide rails 11 is three, the three slide rails 11 are evenly distributed on the top of the base 1, the top of the slide rail 11 is slidably connected with an adapted electric slider 12, and the top of the electric slider 12 is fixedly connected with a carrier plate 13;

[0031] The electric slider 12 is used to move back and forth along the slide rail 11, so as to drive the carrier plate 13 to move back and forth. The carrier plate 13 is used to carry the circuit board, so as to drive the circuit board to move for detection;

[0032] The side wall of the base 1 is fixedly connected with a gantry 17, and the inner cavity of the gantry 17 is installed with a detection mechanism;

[0033] Testing agencies include:

[0034] A horizontal plate 2, both ends of which are fixedly connected to the inner walls of the two side walls of the gantry 17, three evenly distributed movable rods 21 are passed through the top of the horizontal plate 2, the tail ends of the movable rods 21 are fixedly connected to a frame 23, a roller 24 is rotatably installed in the inner cavity of the frame 23, springs 25 are fixed on both sides of the top of the frame 23, the outer ends of the springs 25 are fixedly connected to the bottom of the horizontal plate 2, a high-precision distance sensor 22 is fixed on the top of the movable rod 21, and the outer end of the high-precision distance sensor 22 is arranged directly opposite to the top of the inner cavity of the gantry 17;

[0035] In actual use, the high-precision distance sensor 22 is connected to an external industrial control computer, and the electric slider 12 is used to move along the slide rail 11, so that the carrier plate 13 and the circuit board placed on the carrier plate 13 can be driven to move, so that the circuit board and the roller 24 are in contact, and the roller 24 is lifted, thereby driving the movable rod 21 to move upward. At this time, the high-precision distance sensor 22 will feedback the value of the distance change to the external industrial control computer, so as to accurately measure the thickness of the circuit board, and the roller 24 is in full contact with the circuit board, thereby improving the comprehensiveness of the detection, and then ensuring the accuracy of the inspection;

[0036] Furthermore, mounting holes 16 are provided at the four corners of the top of the base 1. The arrangement of the mounting holes 16 makes it convenient to install and fix the entire device.

[0037] Furthermore, the vertical center planes of the three rollers 24 and the vertical center planes of the three corresponding carriers 13 are in the same plane, thereby ensuring that the rollers 24 and the circuit boards on the carriers 13 are in accurate contact;

[0038] It is worth mentioning that a brush 26 is fixed on the top of the inner cavity of the frame 23. The brush 26 is arranged on the top of the inner cavity of the frame 23, so that the outer wall of the roller 24 can be cleaned by rotating the roller 24 before use to avoid the adhesion of dust and impurities, thereby further ensuring the accuracy of the detection;

[0039] like Figure 1 and 2 As shown; the carrier plate 13 is a hollow structure, a negative pressure pump 15 is fixedly installed on one side wall of the gantry 17, the outer end of the negative pressure pump 15 is connected to the three carrier plates 13 through a negative pressure pipe, and a plurality of negative pressure holes 14 in the shape of a square are opened on the surface of the carrier plate 13;

[0040] The negative pressure pump 15 can generate negative pressure in the cavity of the carrier 13, so that the negative pressure hole 14 generates an adsorption force on the circuit board substrate, so that the stability of the circuit board can be ensured when the carrier 13 drives the circuit board and the roller 24 to contact, which helps to prevent the circuit board from sliding and falling on the carrier 13.

[0041] The implementation principle of a thickness inspection mechanism for flexible circuit board production in the present application is as follows: in actual use, a high-precision distance sensor 22 is connected to an external industrial control computer, and the circuit board is first placed on the carrier 13, and then the negative pressure pump 15 can generate negative pressure in the cavity of the carrier 13, so that the negative pressure hole 14 generates an adsorption force on the circuit board substrate, so that when the carrier 13 drives the circuit board to contact the roller 24, the stability of the circuit board can be ensured, which is conducive to preventing the circuit board from sliding and falling on the carrier 13. Then, the electric slider 12 is used to move along the slide rail 11, so that the carrier 13 and the circuit board placed on the carrier 13 can be driven to move, so that the circuit board and the roller 24 are in contact, and the roller 24 is lifted, so that the movable rod 21 will be driven to move upward. At this time, the high-precision distance sensor 22 will feedback the value of the distance change to the external industrial control computer, so as to accurately measure the thickness of the circuit board, and the roller 24 is in full contact with the circuit board, thereby improving the comprehensiveness of the detection, and thus ensuring the accuracy of the inspection.

[0042] In addition, the components included in the thickness inspection mechanism for flexible circuit board production of the utility model are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and compatible monitoring computers and power supplies are connected through wires. The specific connection means should refer to the following working principle. The electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and no longer explains the electrical control.

Claims

1. A thickness inspection mechanism for flexible circuit board production, comprising a base (1), characterized in that: A slide rail (11) is fixed on the top of the base (1), the number of the slide rails (11) is three, and the three slide rails (11) are evenly distributed on the top of the base (1), the top of the slide rail (11) is slidably connected to an adapted electric slider (12), and the top of the electric slider (12) is fixedly connected to a carrier plate (13); The side wall of the base (1) is fixedly connected to a gantry (17), and the inner cavity of the gantry (17) is equipped with a detection mechanism; The detection mechanism includes: A horizontal plate (2), the two ends of the horizontal plate (2) are fixedly connected to the inner walls of the two side walls of the gantry (17), three evenly distributed movable rods (21) are passed through the top of the horizontal plate (2), the tail ends of the movable rods (21) are fixedly connected to a frame (23), a roller (24) is rotatably installed in the inner cavity of the frame (23), springs (25) are fixed on both sides of the top of the frame (23), the outer ends of the springs (25) are fixedly connected to the bottom of the horizontal plate (2), and a high-precision distance sensor (22) is fixed on the top of the movable rod (21).

2. A thickness inspection mechanism for flexible circuit board production according to claim 1, characterized in that: The carrier plate (13) is a hollow structure, a negative pressure pump (15) is fixedly mounted on one side wall of the gantry (17), the outer end of the negative pressure pump (15) is connected to the three carrier plates (13) through negative pressure pipes, and a plurality of negative pressure holes (14) in the shape of a square are provided on the surface of the carrier plate (13).

3. A thickness inspection mechanism for flexible circuit board production according to claim 1, characterized in that: The vertical center planes of the three roller shafts (24) and the vertical center planes of the three corresponding carrier plates (13) are located in the same plane.

4. The thickness inspection mechanism for flexible circuit board production according to claim 1, characterized in that: Brush bristles (26) are fixed on the top of the inner cavity of the frame (23).

5. The thickness inspection mechanism for flexible circuit board production according to claim 1, characterized in that: The outer end of the high-precision distance sensor (22) is arranged facing the top of the inner cavity of the gantry (17).

6. A thickness inspection mechanism for flexible circuit board production according to claim 1, characterized in that: The four corners of the top of the base (1) are all provided with mounting holes (16).

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