Solder paste supplementing structure of solder paste printing machine

Abstract

The solder paste supplementing structure of the solder paste printing machine comprises a storage part, a feeding part and a rotating part which are installed on a solder paste printing machine body base, the storage part comprises a storage barrel, the top and the bottom of the storage barrel are provided with a feeding port and a first discharging port respectively, and a driving motor is installed at the top of the storage barrel. A stirring shaft is arranged in the storage barrel, stirring blades are mounted on the stirring shaft, and the top end of the stirring shaft is connected with an output shaft of a driving motor through a coupler; according to the solder paste supplementing structure of the solder paste printing machine, by arranging the rotating component, the extrusion head can be moved to the position above the steel mesh of the solder paste printing machine body, then the piston is controlled by the push rod motor to move in the piston barrel, solder paste in the storage barrel can be pumped into the extrusion head, and the solder paste is automatically supplemented to the steel mesh through the extrusion head; through an automatic solder paste supplementing mode, the working efficiency is improved, and meanwhile, the solder paste supplementing amount can be accurately controlled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tin paste printing machine, concretely to a tin paste printing machine's tin paste supplement structure. BACKGROUND

[0002] In the electronic manufacturing industry, tin paste printing is a key step in surface mount technology (SMT), which directly affects the welding quality and reliability of electronic components. In the process of using the tin paste printing machine, it is necessary to frequently supplement the tin paste on its steel mesh. The traditional tin paste supplement method is mostly manual operation. The user needs to first stir the tin paste in the storage tank evenly with a scraper, and then supplement the tin paste to the steel mesh of the tin paste printing machine with the scraper. This way not only is inefficient, but also it is difficult to accurately control the amount of tin paste supplement by manual supplement, often resulting in too much or too little tin paste supplement, thereby affecting the printing quality and subsequent welding effect.

[0003] Therefore, we design a tin paste supplement structure for the tin paste printing machine here. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiencies of prior art, and provides a tin paste supplement structure for the tin paste printing machine to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tin paste supplement structure for the tin paste printing machine, which comprises a storage component, a feeding component and a rotating component installed on the main body base of the tin paste printing machine. The storage component comprises a storage barrel, and the top and bottom of the storage barrel are respectively provided with a feeding port and a first discharge port. A driving motor is installed on the top of the storage barrel, and a stirring shaft is arranged in the interior of the storage barrel. A stirring blade is installed on the stirring shaft, and the top end of the stirring shaft is connected with the output shaft of the driving motor through a shaft coupling.

[0006] The feeding component comprises a bottom plate, and a push rod motor and a pair of quick-mounting clamps are installed on the upper surface of the bottom plate. A piston cylinder is installed on the quick-mounting clamp, and a piston is arranged in the interior of the piston cylinder. The tail of the piston is connected with the front end of the output rod of the push rod motor. A feeding port and seven second discharge ports are arranged at the front end of the piston cylinder. A first one-way valve is installed on the feeding port, and the feeding port is connected with the first discharge port of the storage barrel through a hose. Second one-way valves are installed on the seven second discharge ports.

[0007] The rotating part comprises a servo motor, the output shaft of the servo motor is vertically upward, a support is installed on the output shaft, seven extrusion heads are installed on the support, the seven extrusion heads are connected with the seven second discharge ports of the piston cylinder through hoses respectively, a vertical screw rod and a guide rod are installed at the bottom of the servo motor, a C-shaped plate is arranged below the servo motor, the upper horizontal plate of the C-shaped plate is provided with through holes for the screw rod and the guide rod to pass through respectively, two nuts are arranged on the screw rod, and the upper horizontal plate of the C-shaped plate is clamped between the two nuts.

[0008] Preferably, a cover is hingedly installed on the feeding opening of the storage barrel, and a handle is arranged on the cover.

[0009] Preferably, the bottom of the inner cavity of the storage barrel is funnel-shaped, and the first discharge port of the storage barrel is the outlet of the funnel.

[0010] Preferably, flange seats are installed on the tail of the piston and the front end of the output rod of the push rod motor, and the piston and the front end of the output rod of the push rod motor are connected through the flanges.

[0011] Preferably, the inlet of the first one-way valve is connected with the first discharge port of the storage barrel through a hose, and the outlet of the first one-way valve is connected with the feeding port of the piston cylinder.

[0012] Preferably, the inlet of the second one-way valve is connected with the second discharge port of the piston cylinder, and the outlet of the second one-way valve is connected with the inlet of the extrusion head through a hose.

[0013] Preferably, two positioning columns are installed on the bottom of the outer side of the piston cylinder.

[0014] Preferably, a positioning block is installed on the upper surface of the bottom plate, and the positioning block is provided with positioning holes for the two positioning columns to insert into respectively.

[0015] Compared with the prior art, the tin paste supplementing structure of the tin paste printing machine has the following beneficial effects:

[0016] 1. The tin paste supplementing structure of the tin paste printing machine, by arranging a storage barrel, tin paste required in the printing process can be stored in the storage barrel, by arranging a driving motor to drive the stirring shaft and stirring blades in the storage barrel to rotate, the tin paste in the storage barrel can be automatically stirred, so that stratification or precipitation of the tin paste is avoided.

[0017] 2. The tin paste supplementing structure of the tin paste printing machine, by arranging a rotating part, the extrusion head can be moved above the steel mesh of the main body of the tin paste printing machine, then the piston in the piston cylinder is controlled to move by a push rod motor, the tin paste in the storage barrel can be pumped into the extrusion head, the tin paste is automatically supplemented to the steel mesh through the extrusion head, the working efficiency is improved through the automatic tin paste supplementing mode, and meanwhile, the tin paste supplementing amount can be accurately controlled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the storage component structure schematic view of the utility model;

[0020] Figure 3 It is the feeding component structure schematic view of the utility model;

[0021] Figure 4 It is the piston cylinder dismounting schematic view of the utility model;

[0022] Figure 5 It is the rotating component structure schematic view of the utility model.

[0023] Fig. 1, tin paste printing machine main body; 2, storage component; 21, storage barrel; 21-1, feeding opening; 21-2, first discharge port; 22, driving motor; 23, stirring shaft; 24, stirring blade; 25, flip cover; 3, feeding component; 31, bottom plate; 32, push rod motor; 33, quick-mounting clamp; 34, piston cylinder; 34-1, feeding opening; 34-2, second discharge port; 35, piston; 36, first check valve; 37, second check valve; 38, positioning block; 38-1, positioning hole; 39, positioning column; 4, rotating component; 41, servo motor; 42, bracket; 43, extrusion head; 44, screw; 45, guide rod; 46, C-shaped plate; 47, nut. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 In the embodiment, the tin paste supplementing structure of the tin paste printing machine mainly comprises a storage component 2, a feeding component 3 and a rotating component 4 installed on the base of the tin paste printing machine main body 1, and each component works cooperatively to realize accurate supplementing of tin paste.

[0026] The specific structure of the storage component 2 is as follows:

[0027] The storage component 2 consists of a storage tank 21 for storing solder paste. The top of the storage tank 21 is provided with a feeding port 21-1 for easy addition of solder paste into the storage tank. A flip cover 25 is mounted on the feeding port 21-1 by means of a hinge. The flip cover 25 is provided with a handle for easy opening and closing of the feeding port 21-1. The bottom of the storage tank 21 is provided with a first discharge port 21-2 as a channel for solder paste output.

[0028] A drive motor 22 is also installed on the top of the storage tank 21. The drive motor 22 is connected to the top of the stirring shaft 23 via a coupling. A stirring blade 24 is installed on the stirring shaft 23. The stirring shaft 23 and the stirring blade 24 can stir the solder paste in the storage tank 21 under the drive of the drive motor 22 to prevent the solder paste from separating or settling during storage.

[0029] In addition, the bottom of the inner cavity of the storage tank 21 is funnel-shaped, and the first discharge port 21-2 is the outlet of the funnel. This design helps the solder paste to be discharged smoothly.

[0030] The specific structure of feeding component 3:

[0031] The feeding component 3 consists of a base plate 31, a push rod motor 32, a quick-release clamp 33, a piston cylinder 34, a piston 35, and a one-way valve.

[0032] The base plate 31 serves as a support structure for the feeding component, on which a push rod motor 32 and a pair of quick-release clamps 33 are mounted. The quick-release clamps 33 are used to fix the piston cylinder 34, facilitating the disassembly and cleaning of the piston cylinder 34.

[0033] The piston cylinder 34 is equipped with a piston 35. The tail of the piston 35 is connected to the front end of the output rod of the push rod motor 32. In order to achieve a stable connection between the piston 35 and the output rod of the push rod motor 32, both the tail of the piston 35 and the front end of the output rod of the push rod motor 32 are equipped with flange seats and connected by flanges. When disassembling the piston cylinder 34, the screws connecting the flange seats are removed, and the piston cylinder 34 and the piston 35 can be disassembled together.

[0034] The piston cylinder 34 has a feed port 34-1 and seven second discharge ports 34-2 at its front end. A first check valve 36 is installed on the feed port 34-1. The inlet of the first check valve 36 is connected to the first discharge port 21-2 of the storage tank 21 through a hose, and the outlet is connected to the feed port 34-1 of the piston cylinder 34. The first check valve 36 is used to control the flow direction of solder paste from the storage tank 21 into the piston cylinder 34.

[0035] Each of the seven second discharge ports 34-2 is equipped with a second check valve 37. The inlet of the second check valve 37 is connected to the second discharge port 34-2 of the piston cylinder 34, and the outlet is connected to the inlet of the extrusion head 43 through a hose. The second check valve 37 is used to control the flow direction of solder paste from the piston cylinder 34 to the extrusion head 43.

[0036] To facilitate the positioning and installation of the piston cylinder 34, two positioning pins 39 are installed on the bottom outer side of the piston cylinder 34, and a positioning block 38 is installed on the top of the base plate 31. The positioning block 38 has positioning holes 38-1 for the two positioning pins 39 to be inserted.

[0037] The specific structure of rotating component 4:

[0038] The rotating component 4 consists of a servo motor 41, a bracket 42, an extrusion head 43, a screw 44, a guide rod 45, a C-shaped plate 46, and a nut 47.

[0039] The output shaft of the servo motor 41 is vertically upward, and a bracket 42 is mounted on the output shaft. Seven extrusion heads 43 are mounted on the bracket 42. The extrusion heads 43 are connected to the second discharge port 34-2 of the piston cylinder 34 through a hose. By driving the bracket 42 to rotate through the servo motor 41, the extrusion heads 43 can be moved above the stencil of the solder paste printing machine body 1, so as to facilitate the replenishment of solder paste to the stencil of the solder paste printing machine body 1.

[0040] A vertical screw 44 and a guide rod 45 are installed at the bottom of the servo motor 41. A C-shaped plate 46 is set below the servo motor 41. The upper horizontal plate of the C-shaped plate 46 has through holes for the screw 44 and the guide rod 45 to pass through. Two nuts 47 are set on the screw 44. The upper horizontal plate of the C-shaped plate 46 is sandwiched between the two nuts 47. By adjusting the position of the nuts 47, the height of the servo motor 41 and the bracket 42 can be adjusted.

[0041] Working principle and usage process:

[0042] Before operation, solder paste is added to the storage tank 21 through the feeding port 21-1. Then, the drive motor 22 is started to drive the stirring shaft 23 and stirring blade 24 to rotate, stirring the solder paste in the storage tank 21 so that the various components in the solder paste are evenly mixed. Then, the output rod of the push rod motor 32 is controlled to move back and forth so that the piston cylinder 34 and the hose connected to the extrusion head 43 are filled with solder paste.

[0043] When solder paste needs to be replenished on the stencil of the solder paste printing machine body 1, the servo motor 41 is started, and the extrusion head 43 is moved above the stencil. Then, the push rod motor 32 is started, pushing the piston 35 to move inside the piston cylinder 34, extruding the solder paste in the piston cylinder 34 through the second one-way valve 37 and the hose to the extrusion head 43. The extrusion head 43 replenishes the solder paste onto the stencil. After the solder paste is replenished, the servo motor 41 is started again, sending the extrusion head 43 back to its original position. At the same time, the push rod motor 32 is started, pulling the piston 35 back to its original position, and causing the solder paste in the storage tank 21 to be sucked into the piston cylinder 34 through the first one-way valve 36.

[0044] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A solder paste replenishing structure of a solder paste printer, comprising a storage part (2) installed on a base of a main body (1) of the solder paste printer, a feeding part (3) and a rotating part (4), characterized in that: The storage component (2) comprises a storage barrel (21), the top and bottom of the storage barrel (21) are respectively provided with a feeding opening (21-1) and a first discharging opening (21-2), the top of the storage barrel (21) is provided with a driving motor (22), the inside of the storage barrel (21) is provided with a stirring shaft (23), the stirring shaft (23) is provided with stirring blades (24), and the top end of the stirring shaft (23) is connected with the output shaft of the driving motor (22) through a shaft coupling. The feeding component (3) comprises a bottom plate (31), the upper surface of the bottom plate (31) is provided with a push rod motor (32) and a pair of quick-mounting clamps (33), the quick-mounting clamps (33) are provided with a piston cylinder (34), the inside of the piston cylinder (34) is provided with a piston (35), the tail of the piston (35) is connected with the front end of the output rod of the push rod motor (32), the front end of the piston cylinder (34) is provided with a feeding opening (34-1) and seven second discharging openings (34-2), the feeding opening (34-1) is provided with a first check valve (36), the feeding opening (34-1) is connected with the first discharging opening (21-2) of the storage barrel (21) through a hose, and the seven second discharging openings (34-2) are all provided with second check valves (37). The rotating component (4) comprises a servo motor (41), the output shaft of the servo motor (41) is vertically upward, the output shaft is provided with a support (42), the support (42) is provided with seven extrusion heads (43), the seven extrusion heads (43) are respectively connected with the seven second discharging openings (34-2) of the piston cylinder (34) through hoses, the bottom of the servo motor (41) is provided with a vertical screw rod (44) and a guide rod (45), the lower side of the servo motor (41) is provided with a C-shaped plate (46), the upper horizontal plate of the C-shaped plate (46) is provided with through holes for the screw rod (44) and the guide rod (45) to pass through, the screw rod (44) is provided with two nuts (47), and the upper horizontal plate of the C-shaped plate (46) is clamped between the two nuts (47).

2. The solder paste replenishing structure of the solder paste printer according to claim 1, wherein: The feeding opening (21-1) of the storage barrel (21) is provided with a cover (25) which is rotatably connected through a hinge.

3. The solder paste replenishing structure of the solder paste printer according to claim 1, wherein: The bottom of the inner cavity of the storage barrel (21) is funnel-shaped, and the first discharging opening (21-2) of the storage barrel (21) is the outlet of the funnel.

4. The solder paste replenishing structure of the solder paste printer according to claim 1, wherein: The tail of the piston (35) and the front end of the output rod of the push rod motor (32) are both provided with flange seats, and the piston (35) and the front end of the output rod of the push rod motor (32) are connected through flanges.

5. The solder paste replenishing structure of the solder paste printer according to claim 1, wherein: The inlet of the first check valve (36) is connected with the first discharging opening (21-2) of the storage barrel (21) through a hose, and the outlet of the first check valve (36) is connected with the feeding opening (34-1) of the piston cylinder (34).

6. The solder paste replenishing structure of the solder paste printer according to claim 1, wherein: The inlet of the second check valve (37) is connected with the second discharging opening (34-2) of the piston cylinder (34), and the outlet of the second check valve (37) is connected with the inlet of the extrusion head (43) through a hose.

7. The solder paste replenishing structure of the solder paste printer according to claim 1, wherein: The outside bottom of the piston cylinder (34) is provided with two positioning columns (39).

8. The solder paste replenishing structure of the solder paste printer according to claim 7, wherein: The upper surface of the bottom plate (31) is provided with a positioning block (38) having positioning holes (38-1) for respectively inserting two positioning columns (39).

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