Printed circuit board (PCB) printing film

Abstract

The utility model discloses a printed circuit board (PCB) printing film, which comprises a film substrate, an inner film and an outer film, wherein the inner film and the outer film are arranged on the surface of the film substrate; the positioning seats are arranged on the surfaces of the two sides of the film base plate, positioning holes are formed in the surfaces of the positioning seats, and a top sliding plate is fixed to one side of each positioning seat; the adjusting assembly is arranged between the positioning seat and the film base plate and comprises a shifting block located on the top face of the positioning seat in a sliding mode and a limiting side rod fixed to the side face of the shifting block; according to the PCB printing film, the PCB printing film in the prior art is improved and optimized, the slidable positioning seats are designed on the two sides of the film substrate, and the positioning holes used for being installed on an exposure machine subsequently are formed in the positioning seats, so that the PCB printing film is not prone to falling off in the actual use process, and the PCB printing film is not prone to falling off. The positions of the positioning holes can be adaptively adjusted according to the actual positions of the positioning columns on different exposure machines, so that the universality and the use flexibility of the whole PCB printing film are improved, and different use requirements are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of PCB films, and in particular relates to a PCB printing film. Background Art

[0002] PCB film is a photolithographic film used to make PCB circuit boards. It is typically composed of a glass fiber cloth substrate and a photosensitive adhesive covering the surface. A circuit design pattern is created on the film, which is then combined with the photosensitive adhesive to form a conductive pattern during exposure and etching. As disclosed in the existing patent with publication number CN206039148U, "A PCB printing film comprises a blank area and a pattern area located in the middle of the blank area, both of which are rectangular; two long sides and two short sides are disposed around the pattern area, and each of the four corners of the blank area is provided with an alignment target area for automatic alignment by an exposure machine." It can be seen that the application describes a common PCB printing film.

[0003] When the PCB printing film in the prior art is actually used, positioning holes are designed on the substrate for the subsequent quick installation of the film on the exposure machine. However, the positions of the positioning posts on different exposure machines are different, while the positions of the positioning holes on the existing PCB printing film are fixed, and cannot be adaptively adjusted according to the positions of the positioning posts of different exposure machines. As a result, the PCB printing film has low flexibility in use, cannot be quickly adapted to various exposure machines of different specifications, and has poor versatility. Therefore, the present invention needs to improve and optimize the existing PCB printing film. Utility Model Content

[0004] The purpose of the present invention is to provide a PCB printing film to solve the problem in the above-mentioned background technology that the positions of the positioning holes on the existing PCB printing film cannot be adaptively adjusted according to the positions of the positioning columns of different exposure machines.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: a PCB printing film, comprising

[0006] A film substrate, an inner film and an outer film arranged on the surface of the film substrate;

[0007] Positioning seats are provided on both sides of the film substrate, and positioning holes are provided on the surface of the positioning seats. A top slide is fixed on one side of the positioning seat, and the top slide slide is slidably positioned on the top of the film substrate.

[0008] And an adjustment component arranged between the positioning seat and the film substrate, including a shift block slidingly located on the top surface of the positioning seat, a limiting side rod fixed on the side of the shift block, and a plurality of limiting card holes corresponding to the limiting side rods opened on the side of the film substrate, wherein the limiting side rod is inserted into one of the limiting card holes.

[0009] Preferably, a T-shaped slider is fixed to the bottom surface of the top slide plate, and a T-shaped slideway corresponding to the T-shaped slider is provided on the top surface of the film substrate, and the T-shaped slider is slidably located in the T-shaped slideway.

[0010] Preferably, the adjustment component further includes a rectangular slide groove provided on the top surface of the positioning seat, and a rectangular slider sliding in the rectangular slide groove, wherein the top end of the rectangular slider extends to the top of the positioning seat and is fixed to the shift block.

[0011] Preferably, the adjustment assembly further includes a spring disposed in the rectangular slide groove, and the spring is located on one side of the rectangular slide block.

[0012] Preferably, a guide rod is fixed to one side of the rectangular sliding block, a guide hole communicating with the rectangular sliding groove is opened on the side of the positioning seat, and one end of the guide rod is slidably located in the guide hole.

[0013] Preferably, one end of the spring abuts against the side surface of the rectangular sliding block, and the other end of the spring abuts against the side wall of the rectangular sliding groove.

[0014] Preferably, a positioning portion is further included, and the positioning portion is arranged at a corner of one side of the T-shaped slider.

[0015] Preferably, the positioning portion includes a side notch provided at a corner of the T-shaped slider, a U-shaped rubber measuring seat installed inside the side notch, and a positioning protrusion provided on a side surface of the U-shaped rubber measuring seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention improves and optimizes the PCB board printing film in the prior art, designs slidable positioning seats on both sides of the film substrate, and opens positioning holes on the positioning seats for subsequent installation on the exposure machine, so that when the PCB board printing film is actually used, the position of the positioning hole can be adaptively adjusted according to the actual position of the positioning column on different exposure machines, thereby improving the versatility and flexibility of the entire PCB board printing film and meeting different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 For this utility model Figure 1 A partial enlarged view of area A in the middle;

[0019] Figure 3 This is a cross-sectional view of the connection between the positioning seat and the film substrate of the utility model;

[0020] Figure 4 For this utility model Figure 3 A partial enlarged view of the middle B area;

[0021] In the figure: 1. Film substrate; 11. Inner film; 12. Outer film; 13. T-shaped slide; 2. Positioning seat; 21. Positioning hole; 22. Top slide; 23. T-shaped slider; 231. Side notch; 232. U-shaped rubber measuring seat; 233. Positioning protrusion; 3. Adjustment assembly; 31. Shift block; 32. Limiting hole; 33. Limiting side rod; 34. Rectangular slider; 35. Rectangular slide; 36. Guide rod; 37. Guide hole; 38. Spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figures 1 to 3 , is the first embodiment of the present utility model, which provides a technical solution: a PCB board printing film, including

[0025] A film substrate 1, an inner film 11 and an outer film 12 arranged on the surface of the film substrate 1;

[0026] Positioning seats 2 are provided on both sides of the film substrate 1, and positioning holes 21 are provided on the surface of the positioning seats 2. A top slide 22 is fixed to one side of the positioning seats 2, and the top slide 22 is slidably positioned on top of the film substrate 1;

[0027] The adjusting assembly 3 is provided between the positioning seat 2 and the film substrate 1, and includes a shift block 31 slidingly located on the top surface of the positioning seat 2, a limiting side rod 33 fixed to the side of the shift block 31, and a plurality of limiting holes 32 corresponding to the limiting side rods 33 on the side of the film substrate 1. The limiting side rod 33 is inserted into one of the limiting holes 32 to achieve stable positioning of the positioning seat 2 during daily use. Subsequently, the shift block 31 only needs to be moved sideways to move the limiting side rod 33 out of the limiting hole 32, and the positioning seat 2 can be slidably adjusted. , so that the positioning hole 21 is aligned with the position of the positioning column on the exposure machine, a T-shaped slider 23 is fixed to the bottom surface of the top slide 22, and a T-shaped slide 13 corresponding to the T-shaped slider 23 is opened on the top surface of the film substrate 1. The T-shaped slider 23 slides in the T-shaped slide 13, so that the top slide 22 can slide smoothly on the top of the film substrate 1, and also enables the positioning seat 2 to slide smoothly on the side of the film substrate 1. The adjustment component 3 also includes a rectangular slide groove 35 opened on the top surface of the positioning seat 2, and a rectangular slide groove 35 slidingly located in the rectangular slide groove 3 5, the top of the rectangular slider 34 extends to the top of the positioning seat 2 and is fixed to the shift block 31, so that the shift block 31 can slide smoothly on the top of the positioning seat 2. The adjustment component 3 also includes a spring 38 set in the rectangular slide 35. The spring 38 is on one side of the rectangular slider 34. Under the pushing action of the spring 38, the limiting side rod 33 can be stably inserted into one of the limiting card holes 32 during daily use to ensure the limiting stability of the positioning seat 2. The positioning seat 2 and the positioning hole 21 need to be adjusted later. When the locating seat 2 is in the proper position, the shift block 31 is released, and the spring 38 pushes the rectangular slider 34 to rebound and reset with the shift block 31 and the limiting side rod 33, and the limiting side rod 33 is inserted into the limiting hole 32 at another position, and the locating seat 2 can be limited again, completing the rapid adaptive adjustment of the position of the locating seat 2.

[0028] Among them, a guide rod 36 is fixed on one side of the rectangular slider 34, and a guide hole 37 connected to the rectangular slide groove 35 is opened on the side of the positioning seat 2. One end of the guide rod 36 slides in the guide hole 37. The guide rod 36 can guide the rectangular slider 34 when it slides to prevent the rectangular slider 34 from falling off and sliding out of the rectangular slide groove 35.

[0029] Among them, one end of the spring 38 is against the side of the rectangular slider 34, and the other end of the spring 38 is against the side wall of the rectangular slide 35. At the same time, the guide rod 36 passes through the inner center of the spring 38, so that the guide rod 36 does not affect the normal expansion and contraction of the spring 38.

[0030] Example 2

[0031] See also Figures 1 to 4, which is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but differs in that it further includes a positioning portion, which is arranged at a corner of one side of the T-shaped slider 23. The positioning portion includes a side notch 231 opened at the corner of the T-shaped slider 23, a U-shaped rubber measuring seat 232 glued and embedded inside the side notch 231, and a positioning protrusion 233 arranged on the side of the U-shaped rubber measuring seat 232. The U-shaped rubber measuring seat 232 and the positioning protrusion 233 are an integrated structure. Both are made of rubber material and will undergo elastic deformation when squeezed. The positioning protrusion 233 squeezes into one of the limit card holes 3 2, when the subsequent operator pulls the shift block 31 sideways and slides the positioning seat 2 and the T-shaped slider 23, the positioning protrusion 233 will be squeezed and elastically deformed, and will be squeezed into the limiting card hole 32 at another position. Whenever the positioning protrusion 233 is squeezed into one limiting card hole 32, another limiting card hole 32 will be aligned with the limiting side rod 33, which plays the role of auxiliary positioning, reminding the operator whether the limiting side rod 33 is aligned with the limiting card hole 32 during the movement of the T-shaped slider 23, so that the subsequent operator can release the shift block 31 and the limiting side rod 33 can be accurately inserted into the limiting card hole 32 at other positions.

[0032] Although embodiments of the present invention have been shown and described (see the detailed description above for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB printing film, characterized by: include A film substrate (1), an inner film (11) and an outer film (12) arranged on the surface of the film substrate (1); Positioning seats (2) are arranged on both sides of the film substrate (1), and positioning holes (21) are provided on the surfaces of the positioning seats (2). A top slide plate (22) is fixed on one side of the positioning seat (2), and the top slide plate (22) is slidably positioned on the top of the film substrate (1); And an adjustment assembly (3) arranged between the positioning seat (2) and the film substrate (1), comprising a shift block (31) slidably located on the top surface of the positioning seat (2), a limiting side rod (33) fixed to the side of the shift block (31), and a plurality of limiting clamping holes (32) corresponding to the limiting side rods (33) and opened on the side of the film substrate (1), wherein the limiting side rod (33) is inserted into one of the limiting clamping holes (32).

2. The PCB printing film according to claim 1, wherein: A T-shaped slider (23) is fixed to the bottom surface of the top slide plate (22), and a T-shaped slideway (13) corresponding to the T-shaped slider (23) is provided on the top surface of the film substrate (1), and the T-shaped slider (23) is slidably located in the T-shaped slideway (13).

3. The PCB printing film according to claim 1, wherein: The adjustment assembly (3) further comprises a rectangular slide groove (35) provided on the top surface of the positioning seat (2), and a rectangular slider (34) slidingly located in the rectangular slide groove (35). The top end of the rectangular slider (34) extends to the top of the positioning seat (2) and is fixed to the shift block (31).

4. The PCB printing film according to claim 3, wherein: The adjustment assembly (3) further comprises a spring (38) arranged in the rectangular sliding groove (35), and the spring (38) is located on one side of the rectangular sliding block (34).

5. The PCB printing film according to claim 4, characterized in that: A guide rod (36) is fixed on one side of the rectangular slider (34), and a guide hole (37) communicating with the rectangular slide groove (35) is opened on the side of the positioning seat (2), and one end of the guide rod (36) is slidably located in the guide hole (37).

6. The PCB printing film according to claim 4, characterized in that: One end of the spring (38) abuts against the side surface of the rectangular slider (34), and the other end of the spring (38) abuts against the side wall of the rectangular sliding groove (35).

7. The PCB printing film according to claim 1, wherein: It also includes a positioning portion, which is arranged at a corner of one side of the T-shaped slider (23).

8. The PCB printing film according to claim 7, characterized in that: The positioning portion comprises a side notch (231) provided at a corner of the T-shaped slider (23), a U-shaped rubber measuring seat (232) installed inside the side notch (231), and a positioning protrusion (233) provided on a side of the U-shaped rubber measuring seat (232).

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