PCB tin printing template

Abstract

The utility model relates to the technical field of PCB tin printing, in particular to a PCB tin printing template which comprises a support rod and an outer frame body, a guide sliding groove is formed in the upper surface of an inner cavity of each through hole, a reset spring is fixedly installed on the inner side of each guide sliding groove, and one end of each reset spring is fixedly connected with a guide sliding block. A check block penetrating through the through hole is fixedly installed at the bottom of the guide sliding block, and an operation block is fixedly installed on one side of the check block. By pulling the operation block, the check block connected with the operation block drives the guide sliding block to compress the reset spring, the check block is separated from the position of the positioning strip, and therefore the positioning strip can be conveniently taken out from the interior of the positioning groove, and a tin printing template can be conveniently detached and replaced; the PCB tin printing template solves the technical problems that although a PCB tin printing template in the prior art is provided with tin falling holes in a plurality of areas on the surface and is used for adapting to different PCBs, even if the PCB tin printing template is used, the situation of large use limitation still exists, the adaptive capacity is insufficient, and the practicability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB tin printing, in particular to a PCB tin printing template. Background Art

[0002] PCB (Printed Circuit Board), also known as printed circuit board in Chinese, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Because it is made by electronic printing, it is called a "printed" circuit board. PCB records all the information required by the operating system to describe the current situation of the process and control the operation of the process. The function of PCB is to make a program (including data) that cannot run independently in a multi-programming environment become a basic unit that can run independently, a process that can be executed concurrently with other processes. In other words, OS controls and manages concurrently executed processes based on PCB.

[0003] The inventor of this application found that there are the following problems in the practical use process:

[0004] A tinning template is usually used when making solder joints on a PCB. However, although the PCB tinning template in the prior art is provided with tin holes in multiple areas on the surface to adapt to different PCBs, it still has large limitations in use, insufficient adaptability, and reduced practicality. Therefore, it is necessary to provide a PCB tinning template to solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that although the PCB tin printing template in the prior art is provided with tin drop holes in multiple areas on the surface to adapt to the use of different PCBs, even so, there are still large limitations in use, insufficient adaptability, and reduced practicality. In view of the above-mentioned defects of the prior art, a PCB tin printing template is provided, including a bracket rod and an outer frame, a guide slide groove is provided on the upper surface of the inner cavity of each through hole, a reset spring is fixedly installed on the inner side of the guide slide groove, one end of the reset spring is fixedly connected to a guide slider, a block penetrating the through hole is fixedly installed on the bottom of the guide slider, and an operating block is fixedly installed on one side of the block. The utility model pulls the operating block so that the block connected thereto drives the guide slider to compress the reset spring, so that the block is separated from the restriction on the position of the positioning bar, thereby facilitating the removal of the positioning bar from the inside of the positioning groove, and facilitating the replacement of the tin printing template, thereby solving the technical problem that although the PCB tin printing template in the prior art is provided with tin drop holes in multiple areas on the surface to adapt to the use of different PCBs, even so, there are still large limitations in use, insufficient adaptability, and reduced practicality.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a PCB tin printing template, comprising a support rod and an outer frame, the inner bottom of the inner cavity of the outer frame is symmetrically provided with positioning grooves, each of the positioning grooves is provided with a positioning bar, the opposite surfaces of the two positioning bars are jointly fixedly installed with the tin printing template, through holes are provided on both sides of the outer frame, and the upper surface of the inner cavity of each through hole is provided with a guide groove, a return spring is fixedly installed on the inner side of the guide groove, one end of the return spring is fixedly connected to a guide slider, a block passing through the through hole is fixedly installed on the bottom of the guide slider, and an operating block is fixedly installed on one side of the block.

[0007] It is further provided that the tin printing template and the positioning strip are an integrally formed structure, and the tin printing template includes a plurality of tin dropping holes opened on the upper surface.

[0008] It is further provided that the operating block and the stop block are connected to form a T-shaped structure, and the bottom of the stop block is in contact with the positioning bar.

[0009] It is further provided that the interior of the support rod is rotatably connected with a connecting shaft, and the outer side of the connecting shaft is sleeved with a U-shaped hinge seat connected to the outer frame.

[0010] It is further configured that one end of the connecting shaft passes through the U-shaped hinge seat and is sleeved with a limit gear, a fixing block is fixedly installed on one side of the U-shaped hinge seat, a manual adjustment bolt is threaded inside the fixing block, and the lower end of the manual adjustment bolt is rotatably connected to a block engaged with the limit gear.

[0011] It is further arranged that one side of the clamping block is in contact with the U-shaped hinge seat, and the lower end of the hand-adjustable bolt is connected to the clamping block via a bearing.

[0012] It is further provided that the connecting shaft is connected to the support rod via a bearing, and the connecting shaft is fixedly connected to the limit gear, and the tooth gap of the limit gear is 0.14 mm.

[0013] Compared with the related art, the PCB tin printing template provided by the utility model has the following beneficial effects:

[0014] The utility model provides a PCB tin printing template. By pulling an operating block, a stopper connected thereto drives a guide slider to compress a reset spring, so that the stopper is freed from the restriction on the position of a positioning strip, thereby facilitating the removal of the positioning strip from the interior of a positioning groove, and facilitating the replacement of the tin printing template. The utility model solves the problem that, although the PCB tin printing template in the prior art is provided with tin drop holes in multiple areas on the surface to adapt to the use of different PCBs, even so, there is still a situation where the use is greatly limited, the adaptability is insufficient, and the practicality is reduced.

[0015] The utility model provides a PCB tin printing template, wherein an outer frame body and a bracket rod are rotatably connected by a connecting shaft and a U-shaped hinge seat, and a limit gear is installed on the outer side of the connecting shaft, and a clamping block rotatably connected with the connecting shaft is engaged with the limit gear by rotating a hand-adjusting bolt, so that the outer frame body can be turned up to a certain angle and fixed, thereby freeing hands and facilitating the placement and adjustment of the PCB board before tin printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of a PCB tin printing template provided by the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the outer frame and the tin-printing template of the utility model;

[0018] Figure 3 It is a schematic diagram of the partial front view structure of the connection between the tin printing template and the outer frame of the utility model;

[0019] Figure 4 It is a partial left view of the utility model.

[0020] Numbers in the figure: 1. operating block; 2. connecting shaft; 3. bracket rod; 4. U-shaped hinge seat; 5. outer frame; 6. tin printing template; 7. positioning groove; 8. positioning strip; 9. guide slider; 10. guide slide groove; 11. reset spring; 12. hand-adjusting bolt; 13. clamping block; 14. limiting gear; 15. fixing block; 16. tin drop hole; 17. stopper; 18. through hole. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show typical embodiments of the present invention.

[0022] Embodiment 1:

[0023] like Figure 1-4 As shown, a PCB tin printing template of the utility model comprises a bracket rod 3 and an outer frame body 5, positioning grooves 7 are symmetrically provided at the bottom of the inner cavity of the outer frame body 5, a positioning strip 8 is provided inside each positioning groove 7, and the opposite surfaces of the two positioning strips 8 are fixedly installed with a tin printing template 6, through holes 18 are provided on both sides of the outer frame body 5, and a guide slide groove 10 is provided on the upper surface of the inner cavity of each through hole 18, a reset spring 11 is fixedly installed on the inner side of the guide slide groove 10, one end of the reset spring 11 is fixedly connected to a guide slider 9, a stopper 17 penetrating the through hole 18 is fixedly installed at the bottom of the guide slider 9, and an operating block 17 is fixedly installed on one side of the stopper 17.

[0024] like Figure 1As shown, the tin-printing template 6 and the positioning strip 8 are an integrally formed structure, and the tin-printing template 6 includes a plurality of tin-dropping holes 16 opened on the upper surface.

[0025] like Figure 3 As shown, the operating block 1 and the stopper 17 are connected to form a T-shaped structure, and the bottom of the stopper 17 is in contact with the positioning bar 8 .

[0026] During implementation, by pulling the operating block 1, the block 17 connected thereto drives the guide slider 9 to compress the reset spring 11, so that the block 17 is freed from the restriction on the position of the positioning strip 8, thereby facilitating the removal of the positioning strip 8 from the inside of the positioning groove 7, and facilitating the replacement of the tin printing template 6. This solves the problem that although the PCB tin printing template in the prior art is provided with tin drop holes 16 in multiple areas on the surface to adapt to the use of different PCBs, even so, there are still large usage limitations, insufficient adaptability, and reduced practicality.

[0027] Embodiment 2:

[0028] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: the support rod 3 is internally rotatably connected with a connecting shaft 2, the outer side of the connecting shaft 2 is sleeved with a U-shaped hinge seat 4 connected to the outer frame 5, one end of the connecting shaft 2 passes through the U-shaped hinge seat 4 and is sleeved with a limit gear 14, one side of the U-shaped hinge seat 4 is fixedly installed with a fixing block 15, the interior of the fixing block 15 is screwed with a manual adjustment bolt 12, the lower end of the manual adjustment bolt 12 is rotatably connected with a clamping block 13 engaged with the limit gear 14, one side of the clamping block 13 is in contact with the U-shaped hinge seat 4, the lower end of the manual adjustment bolt 12 is connected to the clamping block 13 through a bearing, the connecting shaft 2 and the support rod 3 are connected through a bearing, and the connecting shaft 2 and the limit gear 14 are fixedly connected, and the tooth gap of the limit gear 14 is 0.14mm.

[0029] During implementation, the outer frame 5 and the bracket rod 3 are rotatably connected by a connecting shaft 2 and a U-shaped hinge seat 4, and a limit gear 14 is installed on the outer side of the connecting shaft 2. By rotating the hand-adjustable bolt 12, the block 13 rotatably connected to it is engaged with the limit gear 14, so that the outer frame 5 can be flipped up to a certain angle and fixed, which has the effect of freeing both hands and facilitating the placement and adjustment of the PCB board before tin printing.

[0030] The support rod 3 of the technical solution is installed on a preset PCB placement base, and is rotatably connected with the outer frame 5 through the connecting shaft 2 and the U-shaped hinge seat 4. When in use, first place the PCB on the above-mentioned base, at which time the PCB is located below the outer frame 5 and the tin printing template 6, then turn the outer frame 5 downward to make it contact with the pad on the base, and the outer frame 5 and the tin printing template 6 are in a horizontal state at this time, then pour a certain amount of liquid tin on the tin printing template 6, and use a scraper to scrape the liquid tin into the tin drop hole 16 in the designated area, so that the tin falls on the PCB. When it is necessary to turn up the outer frame 5 to a certain angle and fix it, first turn up the outer frame 5 to a certain angle, then turn the hand-adjusting bolt 12, so that the block 13 rotatably connected thereto is engaged with the limit gear 14, so that the outer frame 5 is fixed. When the tin printing template 6 needs to be removed, first pull the operating blocks 1 on both sides so that the block 17 connected thereto drives the guide slider 9 to compress the reset spring 11, so that the block 17 is freed from the restriction on the position of the positioning strip 8, and then use your fingers to lift the tin printing template 6 to a certain height so that the positioning strip 8 is moved out of the inside of the positioning groove 7, and release the operating block 1 to restore the block 17 to its original position, and finally take the tin printing template 6 out from the inside of the outer frame 5.

[0031] 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 PCB tinning template, comprising a support rod (3) and an outer frame (5), characterized in that: The inner bottom of the outer frame (5) is symmetrically provided with positioning grooves (7), each of which is provided with a positioning strip (8), and the opposite surfaces of the two positioning strips (8) are fixedly mounted with a tin printing template (6), and through holes (18) are provided on both sides of the outer frame (5), and the inner upper surface of each through hole (18) is provided with a guide groove (10), and a return spring (11) is fixedly mounted on the inner side of the guide groove (10), and one end of the return spring (11) is fixedly connected to a guide slider (9), and a stopper (17) penetrating the through hole (18) is fixedly mounted on the bottom of the guide slider (9), and an operating block (11) is fixedly mounted on one side of the stopper (17).

2. A PCB tinning template according to claim 1, characterized in that: The tin printing template (6) and the positioning strip (8) are an integrally formed structure, and the tin printing template (6) includes a plurality of tin dropping holes (16) opened on the upper surface.

3. A PCB tinning template according to claim 1, characterized in that: The operating block (1) and the stop block (17) are connected to form a T-shaped structure, and the bottom of the stop block (17) is in contact with the positioning bar (8).

4. A PCB tinning template according to claim 1, characterized in that: The support rod (3) is rotatably connected to a connecting shaft (2) inside, and the connecting shaft (2) is sleeved with a U-shaped hinge seat (4) connected to an outer frame (5) on the outside.

5. A PCB tinning template according to claim 4, characterized in that: One end of the connecting shaft (2) passes through the U-shaped hinge seat (4) and is sleeved with a limit gear (14); a fixing block (15) is fixedly installed on one side of the U-shaped hinge seat (4); a hand-adjusting bolt (12) is threadedly connected to the interior of the fixing block (15); and a clamping block (13) that is engaged with the limit gear (14) is rotatably connected to the lower end of the hand-adjusting bolt (12).

6. A PCB tinning template according to claim 5, characterized in that: One side of the clamping block (13) is in contact with the U-shaped hinge seat (4), and the lower end of the hand-adjustable bolt (12) is connected to the clamping block (13) via a bearing.

7. A PCB tinning template according to claim 5, characterized in that: The connecting shaft (2) and the support rod (3) are connected via a bearing, and the connecting shaft (2) and the limit gear (14) are fixedly connected, and the tooth gap of the limit gear (14) is 0.14 mm.

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