Printed circuit board printing jig

Abstract

The utility model discloses a printed circuit board printing jig, and relates to the technical field of circuit board jigs. The printed circuit board printing jig comprises a hollow outer shell with openings formed in one side and the upper surface, a shell is slidably connected into the outer shell, after a circuit board is printed, a movable plate is pressed downwards through the arrangement of a containing plate, a spring and other structures, the movable plate can slide in a sliding groove, at the moment, the shell can be pulled out of the outer shell, and the shell can be pulled out of the outer shell. Compared with the prior art, the circuit board is directly pushed out of the interior of the shell under the action of the spring, so that the circuit board is relatively convenient to take down and replace, and after the circuit board is pushed into the shell, the circuit board can be conveniently taken out of the shell, so that the circuit board can be conveniently taken out of the shell. The circuit board can be automatically attached to the screen board under the action of the spring, the screen board does not need to be manually pressed on the circuit board, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board jigs, in particular to a printed circuit board printing jig. Background Art

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, etc. The production process of circuit boards mainly includes design, plate making, printing, molding, drilling, plug-in, welding, etc. Printed circuit boards can achieve a high degree of integration of electronic components, and connect various components by wiring on the board, making the circuit more compact.

[0003] The existing printed circuit board jig can be pulled out to facilitate the disassembly and installation of the jig. For example, Chinese patent application number CN202223260376.5 discloses a printed circuit board printing jig, including a jig frame and a printing grid. The front side wall of the jig frame is provided with a pull-out plate, and the pull-out plate is slidably connected to the inside of the jig frame. The top of the pull-out plate is provided with a printing groove and a limit hole, the printing grid is provided with a silk screen mesh, and the bottom of the printing grid is provided with a limit rod.

[0004] When using this fixture, the circuit board is placed in the printing slot and the silk screen mesh is pressed down to fit the circuit board. After the circuit board is printed, the silk screen mesh needs to be picked up, and then the circuit board can be buckled out of the printing slot, which is a more troublesome operation. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a printed circuit board printing jig, which solves the problem of inconvenience in replacing circuit boards.

[0006] Technical Solution

[0007] To achieve the above purpose, the utility model is implemented through the following technical solutions: a printed circuit board printing jig, including a hollow shell with openings on one side and the upper surface, the shell is slidably connected to the shell inside, the upper surface of the shell is provided with a through opening, a plurality of fixing rods are symmetrically arranged inside the shell, the outer surfaces of the plurality of fixing rods are slidably connected to a cylinder, the upper ends of the plurality of cylinders are connected to the same placement plate, wherein the cylinders corresponding to two positions are connected to a movable plate on the side away from each other, the shell and both sides of the shell are longitudinally penetrated with grooves adapted to the movable plate, the shell is penetrated with slide grooves on both sides, the slide grooves are connected to the grooves on the side close to the grooves, and the other side of the slide grooves penetrates the shell, the upper ends of the fixing rods are connected to the cylinder through springs, and a mesh plate is provided on the upper side of the inner wall of the shell.

[0008] Preferably, two fixing rods at corresponding positions are both provided with connecting plates on the sides away from each other.

[0009] Preferably, a fixing block is provided on the lower surface of the connecting plate, a hole is formed through the side of the fixing block, a U-shaped rod is slidably connected to the inner wall of the hole, and both ends of the U-shaped rod extend toward the connecting plate.

[0010] Preferably, the outer surface of the U-shaped rod is coated with rubber.

[0011] Preferably, a damping ring is provided inside the cylinder.

[0012] Preferably, the connection between the slot and the slide groove is configured as a rounded corner.

[0013] Preferably, the outer surface of the movable plate is provided with anti-slip textures. Beneficial Effects

[0014] The utility model provides a printed circuit board printing jig, which has the following beneficial effects:

[0015] By setting the placement plate, spring and other structures, after the printing of the circuit board is completed, the movable plate is pressed downward so that the movable plate can slide in the slide groove. At this time, the shell can be pulled out from the outer shell. Just loosen the movable plate. Under the action of the spring, the placement plate will push the circuit board up to make the circuit board out of the shell. At this time, the circuit board can be directly removed. Compared with the prior art, the circuit board is directly pushed out of the shell through the action of the spring, making it easier to remove and replace the circuit board. After the circuit board is pushed into the shell, it will automatically fit with the screen under the action of the spring. There is no need to manually press the screen on the circuit board, and the operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the housing of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the housing of the utility model;

[0019] Figure 4 This is a schematic diagram of the cylinder structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the internal structure of the cylinder of the utility model.

[0021] In the figure: 1, outer shell; 2, shell; 3, fixing rod; 4, cylinder; 5, placement plate; 6, moving plate; 7, slot; 8, slide groove; 9, spring; 10, mesh plate; 11, connecting plate; 12, fixing block; 13, U-shaped rod; 14, damping ring; 15, fillet. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides a technical solution: a printed circuit board printing jig, comprising a hollow shell 1 with openings on one side and the upper surface, a shell 2 is slidably connected to the inside of the shell 1, a through opening is opened on the upper surface of the shell 2, a plurality of fixed rods 3 are symmetrically arranged inside the shell 2, a plurality of fixed rods 3 are slidably connected to the outer surfaces of the plurality of fixed rods 3, a cylinder 4 is connected to the same placement plate 5 at the upper ends of the plurality of cylinders 4, wherein the cylinders 4 corresponding to two positions are connected to a movable plate 6 on the side away from each other, a slot 7 adapted to the movable plate 6 is longitudinally penetrated on both sides of the shell 1 and the shell 2, a slide groove 8 is penetrated on both sides of the shell 1, the slide groove 8 is connected to the slot 7 on the side close to the slot 7, and the other side of the slide groove 8 penetrates the shell 1, the upper end of the fixed rod 3 is connected to the cylinder 4 through a spring 9, a mesh plate 10 is provided on the upper side of the inner wall of the shell 1, and the movable plate 6 is slidably connected to the inner wall of the slot 7 and the slide groove 8.

[0024] During operation, when a printed circuit board is needed, the circuit board is placed on the placement plate 5, and the movable plate 6 is pressed downward to move the cylinder 4 downward and drive the placement plate 5 and the circuit board downward. The circuit board will enter the shell 2 and be limited by the shell 2. The shell 2 is pushed toward the side opening of the shell 1, and the shell 2 will enter the shell 1. At the same time, the movable plate 6 slides in the slide groove 8. When the movable plate 6 slides to the slot 7 position, the shell 2 is located inside the shell 1. The movable plate 6 is released, and the spring 9 pushes the cylinder 4 upward, driving the placement plate 5, the movable plate 6, and the circuit board Move upward, and the circuit board will fit with the stencil 10 under the push of the placement plate 5, so that the circuit board can be printed. The stencil 10 is a rigid leak plate used by the production line to print solder paste or patch glue on a substrate, such as a circuit board, FPC, etc. It is a prior art and will not be described here. After printing is completed, press the movable plate 6 downward and pull the shell 2 out of the outer shell 1, release the movable plate 6, and the placement plate 5 will push the circuit board upward under the action of the spring 9, so that the circuit board automatically leaves the inside of the shell 2, making it easy to remove the circuit board.

[0025] See also Figure 1-5 The utility model provides a technical solution: a connecting plate 11 is provided on the far side of two corresponding fixed rods 3 , and the height of the connecting plate 11 is lower than that of the movable plate 6 .

[0026] During operation, through the setting of the connecting plate 11, when pressing the movable plate 6 downward, the fingers can be buckled on the lower surface of the connecting plate 11, which is convenient for pressing the movable plate 6 downward. After the movable plate 6 is downwardly fitted with the connecting plate 11, the movable plate 6 and the connecting plate 11 can be pinched to facilitate pulling the movable plate 6, thereby pulling the shell 2.

[0027] See also Figure 1-5 The utility model provides a technical solution: a fixing block 12 is provided on the lower surface of the connecting plate 11, a hole is penetrated through the side of the fixing block 12, a U-shaped rod 13 is slidably connected to the inner wall of the hole, both ends of the U-shaped rod 13 extend toward the connecting plate 11, and the U-shaped rod 13 is made of stainless steel.

[0028] During operation, after the movable plate 6 and the connecting plate 11 are fitted together, the U-shaped rod 13 can be pressed toward the connecting plate 11 with a finger, so that the movable plate 6 and the connecting plate 11 are located inside the U-shaped rod 13. The U-shaped rod 13 will limit the movable plate 6 and the connecting plate 11, so that the movable plate 6 and the connecting plate 11 will not separate.

[0029] See also Figure 1-5 The utility model provides a technical solution: the outer surface of the U-shaped rod 13 is covered with rubber.

[0030] During operation, by coating the outer surface of the U-shaped rod 13 with rubber, the friction between the U-shaped rod 13 and the opening can be increased, so that the U-shaped rod 13 is not easily moved when not in use.

[0031] See also Figure 1-5 The utility model provides a technical solution: a damping ring 14 is provided on the inner side of the cylinder 4.

[0032] During operation, the friction between the cylinder 4 and the fixed rod 3 can be increased by setting the damping ring 14. When the movable plate 6 is released, the speed at which the spring 9 pushes the placement plate 5 will not be too fast to cause the circuit board to fall off the placement plate 5.

[0033] See also Figure 1-5 The utility model provides a technical solution: the connection between the slot 7 and the slide slot 8 is set as a rounded corner 15.

[0034] During operation, due to the arrangement of the rounded corners 15 , when the housing 2 is pulled out of the outer shell 1 , the connection between the slot 7 and the slide slot 8 is unlikely to block the normal movement of the moving plate 6 .

[0035] See also Figure 1-5 The utility model provides a technical solution: the outer surface of the movable plate 6 is provided with anti-slip textures.

[0036] During operation, the anti-skid pattern can enhance the friction between the surface of the movable plate 6 and the fingers, making it less likely to slip.

[0037] In summary, when a printed circuit board is needed, the circuit board is placed on the placement plate 5, and the movable plate 6 is pressed downward to move the cylinder 4 downward and drive the placement plate 5 and the circuit board to move downward. The circuit board will enter the shell 2 and be limited by the shell 2. The U-shaped rod 13 is pressed to limit the movable plate 6 and the connecting plate 11, and the shell 2 is pushed toward the side opening of the shell 1. The shell 2 will enter the shell 1, and the movable plate 6 slides in the slide groove 8. When the movable plate 6 slides to the slot 7 position, the shell 2 is located inside the shell 1, and the U-shaped rod 13 is pushed to make the movable plate 6 and the connecting plate 11 move. It is away from the movable plate 6. At this time, the movable plate 6 is no longer limited. The spring 9 pushes the cylinder 4 upward, driving the placement plate 5, the movable plate 6, and the circuit board to move upward. Under the pushing action of the placement plate 5, the circuit board will fit with the screen 10, so that the circuit board can be printed. After printing is completed, the movable plate 6 is pressed downward and the shell 2 is pulled out of the outer shell 1, and the movable plate 6 is released. Under the action of the spring 9, the placement plate 5 will push the circuit board upward, so that the circuit board automatically leaves the inside of the shell 2, making it easy to remove the circuit board.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] 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 circuit board printing jig, comprising a hollow housing (1) with openings on one side and the upper surface, characterized in that: The shell (1) is slidably connected to a shell (2) inside, and a through opening is provided on the upper surface of the shell (2). A plurality of fixing rods (3) are symmetrically provided inside the shell (2). The outer surfaces of the plurality of fixing rods (3) are slidably connected to a cylinder (4). The upper ends of the plurality of cylinders (4) are connected to the same placement plate (5), wherein the cylinders (4) at two positions corresponding to the two positions are connected to a movable plate (6) on the side away from each other. A slot (7) matching the movable plate (6) is longitudinally penetrated on both sides of the shell (1) and the shell (2). A slide groove (8) is penetrated on both sides of the shell (1). The side of the slide groove (8) close to the slot (7) is connected to the slot (7), and the other side of the slide groove (8) penetrates the shell (1). The upper end of the fixing rod (3) is connected to the cylinder (4) via a spring (9), and a mesh plate (10) is provided on the upper side of the inner wall of the shell (1).

2. A printed circuit board printing jig according to claim 1, characterized in that: A connecting plate (11) is provided on the far side of the two fixing rods (3) at corresponding positions.

3. A printed circuit board printing jig according to claim 2, characterized in that: A fixing block (12) is provided on the lower surface of the connecting plate (11), a hole is provided through the side of the fixing block (12), a U-shaped rod (13) is slidably connected to the inner wall of the hole, and both ends of the U-shaped rod (13) extend towards the connecting plate (11).

4. A printed circuit board printing jig according to claim 3, characterized in that: The outer surface of the U-shaped rod (13) is covered with rubber.

5. A printed circuit board printing jig according to claim 1, characterized in that: A damping ring (14) is provided on the inner side of the cylinder (4).

6. A printed circuit board printing jig according to claim 1, characterized in that: The connection between the slot (7) and the slide groove (8) is configured as a rounded corner (15).

7. A printed circuit board printing jig according to claim 1, characterized in that: The outer surface of the movable plate (6) is provided with anti-slip textures.

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