A tin paste jig

Abstract

The utility model discloses a kind of tool for solder paste, belong to solder paste processing technical field, including first tool, and the second tool being arranged below first tool, the inside of first tool, second tool and third tool is provided with flow guide plate, the inside of third tool is provided with protection assembly, wherein protection assembly includes buffer protection plate, and buffer protection plate is slidingly installed in the inside of third tool. This kind of tool for solder paste, while conveying solder paste, solder paste will be conveyed to the inside of first tool through feed inlet, the solder paste conveyed will be conveyed to the inside of first tool through flow guide plate, then buffer protection plate arranged in the inside of first tool will be buffered and skidproof to the solder paste material conveyed down by two dampers, avoid the phenomenon that solder paste collides and is damaged while conveying and discharging, improve the conveying efficiency of solder paste.

Description

Technical Field

[0001] This utility model relates to the field of solder paste processing technology, specifically to a solder paste jig. Background Technology

[0002] Solder paste is an indispensable key material in surface mount technology (SMT). Its core function is to precisely apply a fixed amount of solder paste to the pads of a PCB through a printing process. After reflow soldering, it forms electrical and mechanical connections, enabling reliable soldering of electronic components to the circuit board. Therefore, it is widely used in consumer electronics, automotive electronics, semiconductor packaging, military and aerospace, and medical devices. Solder paste jigs are material management devices specifically designed for SMT processes. Their core function is to use mechanical structures to force solder paste to be used in the order it enters the warehouse, ensuring that the solder paste is used within its shelf life, thereby guaranteeing soldering quality and reducing waste. Existing jigs assist in the advanced processing of solder paste. While most solder paste is conveyed directly, there is no buffer structure to protect it. This can lead to damage during conveying, affecting subsequent processing. For example, in prior art 1 (Chinese patent application number CN202222305541.8, application date 2022-08-31), a solder paste fixture has a buffer plate elastically connected to the retaining plate on the receiving plate. When the solder paste rolls onto the receiving plate, the buffer plate cushions the solder paste on the receiving plate, preventing it from violently impacting the retaining plate and protecting it.

[0003] While existing technologies can buffer and protect the solder paste being transported, the buffering effect cannot be improved by directly using springs. This is because springs, as elastic elements, have inherent vibration frequencies, which may cause solder powder agglomeration, flux volatilization, or delamination, directly damaging the uniformity and performance of the solder paste, resulting in poor practicality. Therefore, a solder paste jig has been proposed to effectively solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a solder paste fixture to solve the problem mentioned in the background art that the current market method of directly using springs for buffering cannot improve the buffering and protection effect of solder paste. This is because springs, as elastic elements, have an inherent vibration frequency, which may cause solder powder agglomeration, flux volatilization or delamination, directly damaging its uniformity and performance, resulting in poor practicality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solder paste fixture, comprising a first fixture and a second fixture disposed below the first fixture, wherein the second fixture is mounted above a third fixture, and a discharge port is provided below the third fixture, and a feed port is provided on the outer side of the first fixture, wherein guide plates are provided inside the first fixture, the second fixture and the third fixture, and a protective component is provided inside the third fixture, wherein the protective component includes a buffer protective plate, and the buffer protective plate is slidably mounted inside the third fixture.

[0006] Preferably, the protective assembly further includes two dampers, which are disposed inside the third fixture, and the outer ends of the two dampers are connected to a buffer protective plate, and the two dampers are symmetrically arranged about the transverse centerline of the buffer protective plate.

[0007] Preferably, the right end of the buffer protective plate is rotatably connected to two compression rods, and the two compression rods are inclined. The outer ends of the two compression rods are rotatably connected to movable seats, wherein the two movable seats are slidably installed inside the third fixture.

[0008] Preferably, the third fixture has two energy storage springs connected to one end inside, and the two energy storage springs have the same structure, and the other end of the two energy storage springs is fixedly connected to a movable seat.

[0009] Preferably, two limiting blocks are slidably mounted on the lower part of the first fixture via two reset springs, and the outer surfaces of the two limiting blocks are inclined, and the outer ends of the two limiting blocks extend through into the interior of the second fixture. The two limiting blocks are symmetrically arranged about the vertical center line of the first fixture.

[0010] Preferably, the outer sides of the two limiting blocks are fixedly connected with pull ropes, and the two pull ropes are fixedly connected with levers through guide wheels, and the two levers are slidably installed on the front side of the first fixture.

[0011] Preferably, a compression spring is provided on the front side of the first fixture, and two ends of the compression spring are respectively connected to a lever, and a lever is provided on the front side of the two levers.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) While the solder paste is being conveyed, it will be conveyed into the first fixture through the feed port. At this time, the conveyed solder paste will be conveyed into the first fixture through the guide plate. Then, the buffer protection plate set inside the first fixture will buffer and prevent slippage of the conveyed solder paste material through two dampers, so as to avoid the solder paste from being damaged by collision while being conveyed and unloaded, and improve the conveying efficiency of the solder paste.

[0014] (2) Furthermore, while the solder paste is squeezing and colliding with the buffer protection plate, the solder paste will simultaneously squeeze the buffer protection plate to shrink and move, so that the buffer protection plate will squeeze the two moving seats through the two squeezing rods to expand and move. Then the two moving seats can squeeze and store the two energy storage springs to shrink and move. Finally, the two energy storage springs will use their own elastic force to elastically reset the position of the two moving seats after squeezing and moving, so as to facilitate the elastic reset of the position of the buffer protection plate after squeezing and shrinking and moving, and better assist the repeated use of buffer protection in the later stage.

[0015] (3) Setting limit blocks: Two limit blocks are slidably installed under the first fixture by two return springs. When the first fixture and the second fixture are positioned and installed, the two inclined limit blocks will shrink and move by the squeezing of the second fixture, so that the two limit blocks are squeezed and moved into the interior of the first fixture. Then, the two return springs can automatically spring the two limit blocks into the interior of the second fixture by their own elasticity, so as to realize quick positioning and installation of the first fixture and the second fixture, avoid the phenomenon of loosening and falling off during use, and improve stability.

[0016] (4) Furthermore, when it is necessary to quickly disassemble and replace the first fixture and the second fixture, simply press the two levers to drive the two levers to retract and move. At this time, the two retracting levers will drive the two pull ropes to pull the two limit blocks through the guide wheel to retract and move, so that the first fixture and the second fixture are separated. Then the first fixture can be taken out from the top of the second fixture to realize the subsequent disassembly and replacement, which is more time-saving and labor-saving.

[0017] (5) Furthermore, by utilizing the compression spring inside the first fixture, and connecting the two ends of the compression spring with levers, the position of the levers after compression movement can be elastically reset by the elastic force of the compression spring itself, so as to facilitate repeated disassembly and replacement in the later stage, and the practicality is better. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the first fixture and buffer protective plate of this utility model;

[0020] Figure 3 This is a partial three-dimensional structural diagram of the first fixture, second fixture and third fixture of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a three-dimensional structural diagram of the first fixture of this utility model;

[0023] Figure 6 This is a partial three-dimensional structural diagram of the first fixture and the limiting block of this utility model;

[0024] Figure 7 This utility model Figure 6 Enlarged structural diagram at point B.

[0025] In the diagram: 1. First fixture; 2. Second fixture; 3. Third fixture; 4. Buffer guard plate; 5. Extrusion rod; 6. Moving seat; 7. Storage spring; 8. Feed inlet; 9. Guide plate; 10. Pulley; 11. Pull rope; 12. Extrusion spring; 13. Pulley; 14. Limit block; 15. Return spring; 16. Damper; 17. Discharge port. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This utility model provides the following technical solution: a solder paste fixture:

[0028] Example 1: To address the problem that existing methods of directly using springs for buffering cannot improve the buffering and protection effect on solder paste, because springs, as elastic elements, have inherent vibration frequencies that may cause solder powder agglomeration, flux volatilization, or delamination, directly damaging its uniformity and performance, resulting in poor practicality, the following solution is disclosed: a first fixture 1, and a second fixture 2 disposed below the first fixture 1, with the second fixture 2 mounted above a third fixture 3. A discharge port 17 is provided below the third fixture 3, and a feed port 8 is provided on the outer side of the first fixture 1. Guide plates 9 are provided inside the first fixture 1, second fixture 2, and third fixture 3. A protective assembly, including a buffer protective plate 4, is provided inside the third fixture 3. The protective plate 4 is slidably installed inside the third fixture 3. The protective assembly also includes two dampers 16, which are located inside the third fixture 3. The outer ends of the two dampers 16 are connected to the buffer protective plate 4, and the two dampers 16 are symmetrically arranged about the transverse centerline of the buffer protective plate 4. While the solder paste is being conveyed, it is fed into the first fixture 1 through the feed port 8. The conveyed solder paste is then fed into the first fixture 1 through the guide plate 9. Subsequently, the buffer protective plate 4 inside the first fixture 1 buffers and prevents slippage of the conveyed solder paste material through the two dampers 16, avoiding collision damage during the conveying process and improving the conveying efficiency of the solder paste. Figures 1-3 As shown.

[0029] Two compression rods 5 are rotatably connected to the right end of the buffer plate 4. These two compression rods 5 are inclined, and their outer ends are rotatably connected to movable seats 6. The two movable seats 6 are slidably mounted inside the third fixture 3. Inside the third fixture 3, one end of two energy storage springs 7 are connected, and the two energy storage springs 7 have identical structures. The other end of the two energy storage springs 7 is fixedly connected to the movable seats 6. While the solder paste compresses and collides with the buffer plate 4, it simultaneously compresses and contracts the buffer plate 4. This causes the buffer plate 4 to expand by compressing the two movable seats 6 through the two compression rods 5. Subsequently, the two movable seats 6 compress and store energy for the two energy storage springs 7, allowing them to contract. Finally, the elastic force of the two energy storage springs 7 elastically resets the position of the movable seats 6 after compression and contraction, facilitating the elastic reset of the buffer plate 4 after compression and contraction, and better assisting in subsequent repeated buffering and protection applications. Figure 2 and Figure 3 As shown.

[0030] Example 2 differs from Example 1 in that a quick-release mechanism allows for rapid assembly and disassembly of the first fixture 1, the second fixture 2, and the third fixture 3, resulting in more time-saving and labor-saving operation and improved solder paste delivery. The following is disclosed:

[0031] Two limiting blocks 14 are slidably mounted on the lower part of the first fixture 1 via two return springs 15. The outer surfaces of the two limiting blocks 14 are inclined, and their outer ends extend into the interior of the second fixture 2. The two limiting blocks 14 are symmetrically arranged about the vertical center line of the first fixture 1. While the first fixture 1 and the second fixture 2 are being positioned and installed, the two inclined limiting blocks 14 are compressed and moved by the pressure of the second fixture 2, causing them to compress and move into the interior of the first fixture 1. Then, the elastic force of the two return springs 15 automatically pushes the two limiting blocks 14 into the interior of the second fixture 2, achieving quick positioning and installation of the first fixture 1 and the second fixture 2. This prevents the first fixture 1 and the second fixture 2 from loosening and falling off during later use, resulting in better stability. Figure 6 and Figure 7 As shown.

[0032] Pull ropes 11 are fixedly connected to the outer sides of the two limiting blocks 14, and the two pull ropes 11 are fixedly connected to the levers 10 via guide wheels. The two levers 10 are slidably mounted on the front side of the first fixture 1. A compression spring 12 is provided on the front side of the first fixture 1, and levers 10 are respectively connected to both ends of the compression spring 12. A lever 13 is provided on the front side of the two levers 10. When it is necessary to quickly disassemble and replace the first fixture 1 and the second fixture 2, simply press the two levers 13, which will cause the two levers 10 to retract and move through the two compression springs 12. At this time, the two retracting levers 10 will drive the two pull ropes 11 to pull the two limiting blocks 14 to retract and move through the guide wheels, so that the first fixture 1 and the second fixture 2 are separated. Then the first fixture 1 can be removed from the top of the second fixture 2 to realize the subsequent disassembly and replacement, which is more time-saving and labor-saving. Figure 5 and Figure 6 As shown.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A solder paste jig, comprising a first jig (1) and a second jig (2) disposed below the first jig (1), wherein the second jig (2) is mounted above a third jig (3), and a discharge port (17) is provided below the third jig (3), and a feed port (8) is provided on the outer side of the first jig (1). Its features are: The first fixture (1), the second fixture (2) and the third fixture (3) are provided with guide plates (9), and the third fixture (3) is provided with protective components, including a buffer protective plate (4), and the buffer protective plate (4) is slidably installed inside the third fixture (3).

2. The solder paste jig according to claim 1, characterized in that: The protective assembly also includes two dampers (16), which are disposed inside the third fixture (3), and the outer ends of the two dampers (16) are connected to a buffer protection plate (4), and the two dampers (16) are symmetrically arranged about the transverse center line of the buffer protection plate (4).

3. A solder paste jig according to claim 2, characterized in that: The right end of the buffer protection plate (4) is rotatably connected to two extrusion rods (5), and the two extrusion rods (5) are inclined. The outer ends of the two extrusion rods (5) are rotatably connected to movable seats (6), and the two movable seats (6) are slidably installed inside the third fixture (3).

4. A solder paste jig according to claim 3, characterized in that: The third fixture (3) is internally connected to one end of two energy storage springs (7), and the two energy storage springs (7) have the same structure. The other end of the two energy storage springs (7) is fixedly connected to a movable seat (6).

5. A solder paste jig according to claim 1, characterized in that: Two limiting blocks (14) are slidably mounted on the bottom of the first fixture (1) by two reset springs (15), and the outer surfaces of the two limiting blocks (14) are inclined, and the outer ends of the two limiting blocks (14) extend through into the interior of the second fixture (2). The two limiting blocks (14) are symmetrically arranged about the vertical center line of the first fixture (1).

6. A solder paste jig according to claim 5, characterized in that: Pull ropes (11) are fixedly connected to the outer sides of the two limiting blocks (14), and the two pull ropes (11) are fixedly connected to the paddles (10) through guide wheels, and the two paddles (10) are slidably installed on the front side of the first fixture (1).

7. A solder paste jig according to claim 6, characterized in that: The first fixture (1) is provided with a compression spring (12) on its front side, and the two ends of the compression spring (12) are respectively connected to a lever (10), and the two levers (10) are provided with levers (13) on their front sides.

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