Anti-static online weighing system for AMB substrate solder printing

Abstract

The utility model relates to the technical field of silk-screen printing, in particular to an anti-static online weighing system for AMB substrate solder printing, which comprises a support frame, a marble platform, a precision electronic scale, a positioning arrangement mechanism and an anti-static protection mechanism. The marble platform is fixedly installed on the top of the supporting rack. The precision electronic scale is fixedly connected to the center of the top of the marble platform. The positioning and arranging mechanism comprises a first part and a second part which are the same in structure, each of the first part and the second part comprises a rectangular horizontal mounting plate, two supporting columns, a supporting bottom plate and three horizontal operation cylinders, and the three horizontal operation cylinders are arranged on the other three side edges of the rectangular horizontal mounting plate respectively; the anti-static protection mechanism comprises an anti-static rectangular barrel and an anti-static top cover, and the precision electronic scale and the positioning and arranging mechanism are located on the inner side of the anti-static rectangular barrel. The system is high in precision, high in stability and high in data traceability, and improves the efficiency and quality of printing operation.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing, in particular to a weighing device during screen printing, in particular to an anti-static online weighing system for solder printing on an AMB substrate. Background Art

[0002] Active Metal Brazing (AMB) technology utilizes small amounts of active elements such as Ti and Zr in the brazing filler metal to react with the ceramic to form a wettable layer, thereby achieving a ceramic-metal bond. With the advancement of power electronics technology, AMB substrates are increasingly used in high-power semiconductor module packaging. In the AMB substrate manufacturing process, precise control of solder printing weight is crucial for ensuring product quality, improving production efficiency, reducing costs, and meeting the requirements of high-performance electronic packaging.

[0003] Traditional AMB substrate solder weighing methods rely on manual measurement and recording of the substrate weight before and after printing, and then calculating the printed solder volume through comparison. Traditional weighing methods suffer from poor accuracy, inefficiency, difficulty in process control, poor traceability, and the risk of waste and contamination. Furthermore, when handling materials susceptible to static electricity, measurement errors can easily be introduced, affecting product quality. This makes it difficult to meet the extremely high requirements for material proportioning and coating accuracy in AMB substrate printing production, thereby limiting improvements in production efficiency and yield. Therefore, it is particularly important to develop an anti-static weighing system that can accurately weigh and record the weight of AMB substrate solder in real time online. Utility Model Content

[0004] In order to overcome the disadvantages of traditional weighing methods such as poor accuracy, low efficiency, difficult process control, poor traceability, waste and pollution risks; at the same time, when processing materials that are susceptible to static interference, it is easy to introduce measurement errors, which affects product quality. The utility model provides an anti-static online weighing system for AMB substrate solder printing.

[0005] The utility model provides an anti-static online weighing system for solder printing on AMB substrates, comprising a supporting frame, a marble platform, a precision electronic scale, a positioning and arranging mechanism and an anti-static protection mechanism; the marble platform is fixedly mounted on the top of the supporting frame, the precision electronic scale is fixedly connected to the top center of the marble platform, the precision electronic scale, the positioning and arranging mechanism and the anti-static protection mechanism all realize data interaction with the printing equipment through a PLC; the positioning and arranging mechanism comprises a first component and a second component with the same structure, the first component and the second component are symmetrically arranged on the marble platforms on the left and right sides of the precision electronic scale respectively, the first component and the second component both comprise a rectangular horizontal mounting plate, two supporting columns, a supporting base plate and three horizontal operating cylinders, wherein the rectangular horizontal mounting plate is fixedly connected to the supporting base plate through two supporting columns, the supporting base plate is fixedly connected to the top surface of the marble platform, and the rectangular horizontal mounting plate is close to the side of the precision electronic scale Parallel to the sides of the precision electronic scale, three horizontal running cylinders are respectively arranged at the other three sides of the rectangular horizontal mounting plate, and the movable ends of the horizontal running cylinders are respectively provided with limit blocks, one of the rectangular horizontal mounting plates is fixedly connected to a proximity sensor, the two rectangular horizontal mounting plates and the top surface of the proximity sensor are located on the same horizontal plane and lower than the weighing contact surface of the precision electronic scale, each horizontal running cylinder is provided with two magnetic switches for sensing the in-position signals at both ends of the horizontal running cylinder; the anti-static protection mechanism includes an anti-static rectangular cylinder and an anti-static top cover, the anti-static rectangular cylinder is fixed to the top of the marble platform, and the precision electronic scale and the positioning and sorting mechanism are located on the inner side of the anti-static rectangular cylinder, a horizontally movable push-pull cylinder is provided on the side wall of the anti-static rectangular cylinder, the anti-static top cover is fixedly connected to the movable end of the push-pull cylinder through a connector, and the opening and closing of the anti-static top cover are achieved under the drive of the push-pull cylinder.

[0006] The two magnetic switches on the horizontal running cylinder are used to sense the position information at both ends of the cylinder. The magnetic switches feedback the position by sensing the magnetic ring inside the cylinder.

[0007] When actually printing the solder of the AMB substrate, the system's through-hole push-pull cylinder controls the anti-static cover of the anti-static protection mechanism to open, and the external grabbing robot places the AMB substrate on the precision electronic scale. After the proximity sensor receives the information that the AMB substrate is in place, the anti-static cover closes, and the positioning and sorting mechanism sorts and positions the position of the AMB substrate through the three horizontal running cylinders of the first component and the second component and the corresponding limit blocks. When the position of the AMB substrate meets the requirements, the magnetic switch on the horizontal running cylinder sends a signal to the system, and the precision electronic scale weighs the AMB substrate before printing and feeds back the weight data to the system for record; then the anti-static cover of the anti-static protection mechanism opens, and the external grabbing robot moves the AMB substrate to the printing workbench for printing. After printing, the external grabbing robot moves the AMB substrate to the precision electronic scale, and the anti-static cover of the anti-static protection mechanism closes again, repeats the position adjustment steps before printing, and feeds back the weight of the printed AMB substrate to the system for record. By comparing and calculating the weight of the AMB substrate before and after printing, the system can determine the printed weight of the solder on the AMB substrate. By comparing this weight with the process setting value, it can determine whether the solder printing amount on the AMB substrate is qualified. If the solder printing amount on the AMB substrate does not meet the process requirements, the system can adjust the printing process parameters accordingly through self-feedback closed-loop control to increase or decrease the solder printing amount.

[0008] Preferably, the marble platform is further provided with two air distribution modules, one corresponding to the first component and the other corresponding to the second component. The external air supply system is connected to the three corresponding horizontal operating cylinders through the air distribution modules. The provision of the air distribution modules can avoid overly complicated internal air pipe connections and can save and standardize internal space.

[0009] Preferably, the anti-static protection mechanism also includes a horizontal ring plate fixedly connected to the top of the anti-static rectangular cylinder. A special-shaped through-hole is provided in the center of the horizontal ring plate for accommodating the AMB substrate. A slide groove is provided on the top surface of the horizontal ring plate, which is adapted to fit the anti-static top cover. This arrangement is structurally sound, and the slide groove on the horizontal ring plate provides a sliding track for closing the anti-static top cover. This arrangement is structurally sound, and the horizontal ring plate can support the anti-static top cover, further enhancing the anti-static effect and avoiding airflow disturbances.

[0010] Preferably, a rubber buffer pad is provided between the bottom of the marble platform and the top of the support frame. This arrangement is structurally reasonable.

[0011] Preferably, the support frame includes a fixedly connected internal support frame and protective panels on each side wall, wherein the front and rear protective panels are connected to handles. The support frame structure is strong and provides sufficient support for the upper equipment. The handles facilitate the movement of the anti-static online weighing system of the utility model.

[0012] Preferably, four leveling casters are fixedly mounted on the bottom of the support frame. The leveling casters can be used to facilitate the movement of the anti-static online weighing system of the utility model and to adjust the overall levelness of the system after it is fixed to a certain position.

[0013] Compared with the prior art, the technical solution provided by the utility model has the following technical effects: the utility model provides an anti-static online weighing system for AMB substrate solder printing, which replaces manual single-piece weighing through intelligent closed-loop control and precision mechanical design, thereby improving production efficiency; through the anti-static protection mechanism, the influence of environmental static electricity on the weighing data of the high-precision weighing platform is avoided, thereby ensuring the accuracy and stability of the weighing data; through the closed-loop control system in conjunction with the printing equipment, the printing process parameters can be adjusted in real time to achieve precise control of the printing amount of the substrate solder, thereby realizing intelligent control; the utility model anti-static online weighing system has high precision, strong stability, and strong data traceability, which greatly improves the efficiency and quality of printing operations, and has high practical value and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of an anti-static online weighing system for AMB substrate solder printing described in an embodiment of the present utility model;

[0017] Figure 2 Schematic diagram of the overall structure of the anti-static protection mechanism in one embodiment of the present invention;

[0018] Figure 3 This is a structural diagram of the precision electronic scale and the positioning and arranging mechanism in one embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the assembly structure of the precision electronic scale and the positioning and arranging mechanism in a certain embodiment of the present utility model;

[0020] Figure 5 This is a structural diagram of the positioning and arranging mechanism described in a certain embodiment of the present utility model;

[0021] Figure 6Schematic diagram of the internal structure of the support frame in a certain embodiment of the present invention.

[0022] In the figure: 1. Support frame; 2. Marble platform; 3. Precision electronic scale; 4. First component; 5. Second component; 6. Rectangular horizontal mounting plate; 7. Support column; 8. Support base plate; 9. Horizontal running cylinder; 10. Limit block; 11. Proximity sensor; 12. Weighing contact surface; 13. Magnetic switch; 14. Anti-static rectangular cylinder; 15. Anti-static top cover; 16. Push-pull cylinder; 17. Connector; 18. Gas distribution module; 19. Horizontal ring plate; 20. Rubber buffer pad; 21. Internal support frame; 22. Protective wall panel; 23. Handle; 24. Leveling adjustment casters; 25. AMB substrate. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0024] In the description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms based on specific circumstances.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Below is the accompanying drawings Figures 1 to 6 The specific embodiments of the present utility model are described in detail.

[0027] In one embodiment, Figure 1As shown, an anti-static online weighing system for AMB substrate solder printing includes a support frame 1, a marble platform 2, a precision electronic scale 3, a positioning and sorting mechanism and an anti-static protection mechanism; the marble platform 2 is fixedly installed on the top of the support frame 1, and the precision electronic scale 3 is fixedly connected to the top center of the marble platform 2. The precision electronic scale 3, the positioning and sorting mechanism and the anti-static protection mechanism all realize data exchange with the printing equipment through PLC; the positioning and sorting mechanism includes a first component 4 and a second component 5 with the same structure, and the first component 4 and the second component 5 are symmetrically arranged on the marble platform 2 on the left and right sides of the precision electronic scale 3 respectively. The first component 4 and the second component 5 both include a rectangular horizontal mounting plate 6, two supporting columns 7, a supporting base plate 8 and three horizontal operating cylinders 9, wherein the rectangular horizontal mounting plate 6 is fixedly connected to the supporting base plate 8 through two supporting columns 7, and the supporting base plate 8 is fixedly connected to the top surface of the marble platform 2, and the side of the rectangular horizontal mounting plate 6 close to the precision electronic scale 3 is flush with the side of the precision electronic scale 3. The three horizontal running cylinders 9 are respectively arranged at the other three sides of the rectangular horizontal mounting plate 6, and the movable ends of the horizontal running cylinders 9 are respectively provided with limit blocks 10, one of the rectangular horizontal mounting plates 6 is fixedly connected to a proximity sensor 11, the top surfaces of the two rectangular horizontal mounting plates 6 and the proximity sensor 11 are located on the same horizontal plane and lower than the weighing contact surface 12 of the precision electronic scale 3, and each horizontal running cylinder 9 is provided with two magnetic switches 13 for sensing the in-position signals at both ends of the horizontal running cylinder 9; the anti-static protection mechanism includes an anti-static rectangular cylinder 14 and an anti-static top cover 15, the anti-static rectangular cylinder 14 is fixed to the top of the marble platform 2, and the precision electronic scale 3 and the positioning and sorting mechanism are located on the inner side of the anti-static rectangular cylinder 14, and a horizontally movable push-pull cylinder 16 is provided on the side wall of the anti-static rectangular cylinder 14, and the anti-static top cover 15 is fixedly connected to the movable end of the push-pull cylinder 16 through a connector 17, and the opening and closing of the anti-static top cover 15 are realized under the drive of the push-pull cylinder 16.

[0028] The two magnetic switches 13 on the horizontal running cylinder 9 are used to sense the position information of the two ends of the cylinder. The magnetic switches 13 feedback the position by sensing the magnetic ring inside the cylinder.

[0029] When the solder of the AMB substrate 25 is actually printed, the system through-hole push-pull cylinder 16 controls the anti-static top cover 15 of the anti-static protection mechanism to open, and the external material grabbing manipulator places the AMB substrate 25 on the precision electronic scale 3. After the proximity sensor 11 receives the information that the AMB substrate 25 is in place, the anti-static top cover 15 is closed, and the positioning and sorting mechanism sorts and positions the position of the AMB substrate 25 through the three horizontal running cylinders 9 of the first component 4 and the second component 5 and the corresponding limit blocks 10. When the position of the AMB substrate 25 meets the requirements, the horizontal running cylinder 9 is moved upwards. The magnetic switch 13 sends a signal to the system, and the precision electronic scale 3 weighs the AMB substrate 25 before printing, and feeds the weight data back to the system for record. Afterwards, the anti-static cover 15 of the anti-static protection mechanism opens, and the external material grabbing manipulator moves the AMB substrate 25 to the printing workbench for printing. After printing, the external material grabbing manipulator moves the AMB substrate 25 to the precision electronic scale 3, and the anti-static cover 15 of the anti-static protection mechanism closes again, repeating the position adjustment step before printing, and the weight of the AMB substrate 25 after printing is fed back to the system for record. By comparing and calculating the weight of the AMB substrate 25 before and after printing, the system can derive the printed weight of the solder on the AMB substrate 25. By comparing it with the process setting value, it can be determined whether the solder printing amount of the AMB substrate 25 is qualified. If the solder printing amount of the AMB substrate 25 does not meet the process requirements, the system can adjust the printing process parameters accordingly through self-feedback closed-loop control to increase or decrease the solder printing amount.

[0030] Based on the above embodiment, in a preferred embodiment, two air distribution modules 18 are further provided on the marble platform 2, the two air distribution modules 18 corresponding to the first component 4 and the second component 5, respectively. The external air supply system is connected to the three corresponding horizontal operating cylinders 9 through the air distribution modules 18. The provision of the air distribution modules 18 can avoid overly complicated internal air pipe connections and can save and standardize internal space.

[0031] Based on the above embodiment, in a preferred embodiment, the anti-static protection mechanism further includes a horizontal ring plate 19 fixedly connected to the top of the anti-static rectangular cylinder 14. A special-shaped through-hole is opened in the middle of the horizontal ring plate 19 for circumventing the AMB substrate 25. The top surface of the horizontal ring plate 19 is provided with a slide groove, which is adapted to the anti-static top cover 15. This arrangement is structurally sound, and the slide groove on the horizontal ring plate 19 provides a sliding track for closing the anti-static top cover 15. This arrangement is structurally sound, and the horizontal ring plate 19 can support the anti-static top cover 15, further enhancing the anti-static effect and avoiding airflow disturbance.

[0032] On the basis of the above embodiment, in a preferred embodiment, a rubber buffer pad 20 is provided between the bottom of the marble platform 2 and the top of the supporting frame 1. Such a setting structure is reasonable.

[0033] Based on the above embodiment, in a preferred embodiment, the support frame 1 includes a fixedly connected internal support frame 21 and protective wall panels 22 on each side wall, wherein handles 23 are connected to the front and rear protective wall panels 22. The support frame 1 has a strong structure and provides sufficient support for the upper equipment. The handles 23 facilitate the movement of the anti-static online weighing system of the present invention.

[0034] Based on the above embodiment, in a preferred embodiment, four leveling casters 24 are fixedly mounted on the bottom of the support frame 1. The leveling casters 24 can be used to facilitate the movement of the anti-static online weighing system of the present invention and to adjust the overall levelness of the system after it is fixed to a certain position.

[0035] The above description is only a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. An anti-static online weighing system for AMB substrate solder printing, characterized in that: It includes a support frame (1), a marble platform (2), a precision electronic scale (3), a positioning and arranging mechanism, and an anti-static protection mechanism; The marble platform (2) is fixedly mounted on the top of the support frame (1), the precision electronic scale (3) is fixedly connected to the top center of the marble platform (2), and the precision electronic scale (3), the positioning and sorting mechanism, and the anti-static protection mechanism all realize data exchange with the printing device through the PLC; The positioning and arranging mechanism comprises a first component (4) and a second component (5) of the same structure. The first component (4) and the second component (5) are symmetrically arranged on the marble platforms (2) on the left and right sides of the precision electronic scale (3). The first component (4) and the second component (5) each comprise a rectangular horizontal mounting plate (6), two supporting columns (7), a supporting base plate (8) and three horizontal operating cylinders (9). The rectangular horizontal mounting plate (6) is fixedly connected to the supporting base plate (8) through the two supporting columns (7). The supporting base plate (8) is fixedly connected to the top surface of the marble platform (2). The rectangular horizontal mounting plate (6) is close to the precision electronic scale (3). The side of the horizontal mounting plate (6) is parallel to the side of the precision electronic scale (3), and three horizontal operating cylinders (9) are respectively arranged at the other three side edges of the rectangular horizontal mounting plate (6), and the movable ends of the horizontal operating cylinders (9) are respectively provided with limit blocks (10), one of the rectangular horizontal mounting plates (6) is fixedly connected to a proximity sensor (11), the top surfaces of the two rectangular horizontal mounting plates (6) and the proximity sensor (11) are located on the same horizontal plane and are lower than the weighing contact surface (12) of the precision electronic scale (3), and each horizontal operating cylinder (9) is provided with two magnetic switches (13) for sensing the in-position signals at both ends of the horizontal operating cylinder (9); The antistatic protection mechanism includes an antistatic rectangular cylinder (14) and an antistatic top cover (15). The antistatic rectangular cylinder (14) is fixed to the top of the marble platform (2), and the precision electronic scale (3) and the positioning and sorting mechanism are located on the inner side of the antistatic rectangular cylinder (14). A horizontally movable push-pull cylinder (16) is provided on the side wall of the antistatic rectangular cylinder (14). The antistatic top cover (15) is fixedly connected to the movable end of the push-pull cylinder (16) through a connecting piece (17). The antistatic top cover (15) is opened and closed under the drive of the push-pull cylinder (16).

2. The anti-static online weighing system for AMB substrate solder printing according to claim 1, characterized in that: Two gas distribution modules (18) are also provided on the marble platform (2), and the two gas distribution modules (18) correspond to the first component (4) and the second component (5), respectively. The external gas supply system is connected to the three horizontal operating cylinders (9) at corresponding positions through the gas distribution modules (18).

3. An anti-static online weighing system for AMB substrate solder printing according to claim 2, characterized in that: The anti-static protection mechanism further comprises a horizontal ring plate (19) fixedly connected to the top of the anti-static rectangular cylinder (14), a special-shaped through hole for avoiding the AMB substrate (25) is opened in the middle of the horizontal ring plate (19), and a slide groove is provided on the top surface of the horizontal ring plate (19), and the slide groove is adapted to the anti-static top cover (15).

4. An anti-static online weighing system for AMB substrate solder printing according to any one of claims 1 to 3, characterized in that: A rubber buffer pad (20) is provided between the bottom of the marble platform (2) and the top of the support frame (1).

5. The anti-static online weighing system for AMB substrate solder printing according to claim 4, characterized in that: The support frame (1) comprises a fixedly connected internal support frame (21) and protective wall panels (22) on each side wall, wherein the front protective wall panel (22) and the rear protective wall panel (22) are connected with handles (23).

6. The antistatic online weighing system for AMB substrate solder printing according to claim 5, characterized in that: Four level-adjusting casters (24) are fixedly mounted on the bottom of the support frame (1).

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