Printing steel mesh capable of reducing deformation of PCB

Abstract

The utility model discloses a printing steel mesh capable of reducing PCB (printed circuit board) deformation, which comprises a printing steel mesh main body, a covering sheet and a mounting block, fixed plates are fixed on two sides of the inner wall of the printing steel mesh main body, threaded rods penetrate through the surfaces of the fixed plates, flexible plates are movably mounted at the tail ends of the threaded rods, and the flexible plates are fixed on the covering sheet. The covering sheet covers the upper portion of the printing steel mesh body, the two sides of the covering sheet are inserted into grooves in the upper surfaces of the fixing blocks correspondingly, the sliding rods are pulled to pull the limiting plate to the proper position, then the PCB is inserted into the upper portion of the interior of the printing steel mesh body, the front end of the PCB abuts against the limiting plate, and the PCB is fixed to the printing steel mesh body. When the PCB is welded, the position of the PCB can be controlled by the front limiting plate, so that the PCB is quickly aligned with the printing steel mesh main body, operation is convenient, then the threaded rod is rotated to drive the soft plate to ascend, the soft plate abuts against the lower portion of the PCB, the PCB is tightly attached to the inner wall of the printing steel mesh main body, and therefore the PCB is prevented from being stressed and deformed in the welding process.

Description

Technical Field

[0001] The utility model relates to the technical field related to PCB board processing, in particular to a printing steel mesh capable of reducing deformation of a PCB board. Background Art

[0002] PCB Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, circuit board, PCB circuit board, etc. It is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made using electronic printing technology, it is called a "printed" circuit board. When soldering the PCB board, a printed steel mesh is needed as an aid.

[0003] However, the printed steel mesh currently used has a relatively single function and cannot fix and protect the PCB board during the soldering process, which causes the PCB board to be deformed under stress and causes waste. In addition, during the soldering process, excess solder will remain on the PCB board, requiring secondary cleaning, which increases the workload. Utility Model Content

[0004] The utility model provides a printed steel mesh that can reduce the deformation of the PCB board, which solves the problem that the currently used printed steel mesh has a relatively single function and cannot fix and protect the PCB board during the soldering process, thereby causing the PCB board to be deformed due to force, resulting in waste, and during the soldering process, excess solder will be left on the PCB board, requiring secondary cleaning, which increases the workload.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printing steel mesh that can reduce the deformation of a PCB board, comprising a printing steel mesh main body, a covering sheet and a mounting block, wherein fixing plates are fixed on both sides of the inner wall of the printing steel mesh main body, a threaded rod passes through the surface of the fixing plate, a soft board is movably mounted on the end of the threaded rod, the covering sheet covers the top of the printing steel mesh main body, the two sides of the covering sheet are respectively inserted into the grooves on the upper surface of the fixing block, the fixing blocks are respectively fixed on both sides of the outer wall of the printing steel mesh main body, the mounting block is mounted in front of the printing steel mesh main body, a slide groove is opened on the surface of the mounting block, a slide rod is movably arranged in the slide groove, and a limiting plate is fixed at the end of the slide rod.

[0006] Preferably, the fixing plate is threadedly connected to the threaded rod, and the soft plate is symmetrically arranged about the central axis of the printing steel mesh body.

[0007] Preferably, the cover sheet is snap-connected with the fixing block via a groove, and the area of ​​the cover sheet is larger than the area of ​​the printing steel mesh body.

[0008] Preferably, the mounting block is slidably connected to the slide rod via a slide groove.

[0009] Preferably, the width of the limiting plate is greater than the width of the printing steel mesh body.

[0010] Compared with the prior art, the beneficial effects of the utility model are: pulling the sliding rod to pull the limit plate to the appropriate position, and then inserting the PCB board into the upper part of the inner part of the printing steel mesh body, so that the front end of the PCB board is against the limit plate, and the front limit plate will control the position of the PCB board, so that the PCB board and the printing steel mesh body are quickly aligned, which is convenient for operation, and then rotating the threaded rod to drive the soft board to rise, and the soft board is against the bottom of the PCB board, so that the PCB board is closely fitted with the inner wall of the printing steel mesh body, thereby avoiding the PCB board from being deformed by force during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the connection structure between the fixed block and the sliding rod of the utility model;

[0014] Figure 4 This is a schematic diagram of the connection structure of the covering film and the mounting block of the utility model.

[0015] In the figure: 1. Printing steel mesh body; 2. Fixed plate; 3. Threaded rod; 4. Soft board; 5. Covering sheet; 6. Fixed block; 7. Groove; 8. Mounting block; 9. Slide groove; 10. Slide rod; 11. Limiting plate. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 The utility model provides a technical solution: a printing steel mesh that can reduce the deformation of a PCB board, comprising a printing steel mesh body 1, a covering sheet 5 and a mounting block 8, fixing plates 2 are fixed on both sides of the inner wall of the printing steel mesh body 1, a threaded rod 3 penetrates through the surface of the fixing plate 2, the fixing plate 2 is threadedly connected with the threaded rod 3, a soft board 4 is symmetrically arranged about the central axis of the printing steel mesh body 1, the soft board 4 is raised by rotating the threaded rod 3, and the soft board 4 is pressed against the bottom of the PCB board, so that the PCB board is closely fitted with the inner wall of the printing steel mesh body 1, thereby preventing the PCB board from being deformed by force during welding;

[0018] A soft board 4 is movably mounted at the end of the threaded rod 3, and a cover sheet 5 covers the top of the printing steel mesh body 1. Both sides of the cover sheet 5 are respectively inserted into the grooves 7 on the upper surface of the fixing block 6. The cover sheet 5 is connected to the fixing block 6 by snapping through the grooves 7. The area of ​​the cover sheet 5 is larger than the area of ​​the printing steel mesh body 1. The cover sheet 5 will cover the surface of the printing steel mesh body 1 to prevent excess solder from leaking.

[0019] The fixing blocks 6 are respectively fixed on both sides of the outer wall of the printing steel mesh main body 1, and the mounting block 8 is installed in front of the printing steel mesh main body 1. A slide groove 9 is opened on the surface of the mounting block 8, and a slide rod 10 is movably arranged in the slide groove 9. A limit plate 11 is fixed to the end of the slide rod 10. The mounting block 8 is slidably connected with the slide rod 10 through the slide groove 9. The position of the limit plate 11 can be controlled by pulling the slide rod 10. The width of the limit plate 11 is greater than the width of the printing steel mesh main body 1. The limit plate 11 will control the position of the PCB board, so that the PCB board can be quickly aligned with the printing steel mesh main body 1, which is convenient for operation.

[0020] Working principle: For this type of printed steel mesh that can reduce the deformation of the PCB board, first pull the sliding rod 10 to pull the limit plate 11 to the appropriate position, and then insert the PCB board into the upper part of the inner part of the printed steel mesh body 1, so that the front end of the PCB board is against the limit plate 11, and the front limit plate 11 will control the position of the PCB board, so that the PCB board and the printed steel mesh body 1 are quickly aligned, which is convenient for operation, and then rotate the threaded rod 3 to drive the soft board 4 to rise, and the soft board 4 is against the bottom of the PCB board, so that the PCB board and the inner wall of the printed steel mesh body 1 are tightly fitted, so as to avoid the PCB board from being deformed by force during welding. In the process of welding, the covering sheet 5 will cover the surface of the printed steel mesh body 1 to prevent excess solder from leaking. Since the covering sheet 5 is very thin, it will not affect the spot welding work. When the welding is completed, the covering sheet 5 is pulled out from the groove 7, and the covering sheet 5 can be cleaned and replaced.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printed steel mesh capable of reducing deformation of a PCB, comprising a printed steel mesh body (1), a cover sheet (5) and a mounting block (8), characterized in that: A fixing plate (2) is fixed on both sides of the inner wall of the printing steel mesh body (1), a threaded rod (3) passes through the surface of the fixing plate (2), and a soft plate (4) is movably installed at the end of the threaded rod (3). The covering sheet (5) covers the top of the printing steel mesh body (1), and the two sides of the covering sheet (5) are respectively inserted into the grooves (7) on the upper surface of the fixing block (6), and the fixing block (6) is respectively fixed on the two sides of the outer wall of the printing steel mesh body (1). The mounting block (8) is installed in front of the printing steel mesh body (1), and a sliding groove (9) is provided on the surface of the mounting block (8), and a sliding rod (10) is movably arranged in the sliding groove (9), and a limiting plate (11) is fixed at the end of the sliding rod (10).

2. A printing steel mesh capable of reducing deformation of a PCB board according to claim 1, characterized in that: The fixing plate (2) is threadedly connected to the threaded rod (3), and the soft plate (4) is symmetrically arranged with respect to the central axis of the printing steel mesh body (1).

3. The printing steel mesh capable of reducing deformation of a PCB board according to claim 1, characterized in that: The cover sheet (5) is snap-connected with the fixing block (6) via a groove (7), and the area of ​​the cover sheet (5) is larger than the area of ​​the printing steel mesh body (1).

4. The printing steel mesh capable of reducing deformation of a PCB board according to claim 1, characterized in that: The mounting block (8) is slidably connected to the slide rod (10) via a slide groove (9).

5. The printing steel mesh capable of reducing deformation of a PCB board according to claim 1, characterized in that: The width of the limiting plate (11) is greater than the width of the printing steel mesh body (1).

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