Automatic tin soldering machine for liquid crystal screen production

Abstract

The invention relates to the technical field of liquid crystal screen soldering processing, in particular to an automatic soldering machine for liquid crystal screen production, which comprises a sliding rail and a sliding table slidably arranged on the sliding rail, one end of the sliding rail is fixedly connected with a first electric push rod, the extension end of the first electric push rod is fixedly connected with the sliding table, and a fixing plate is arranged on the upper side of the sliding rail. The upper end of the fixing plate is fixedly connected to the upper end of the working box. According to the automatic tin soldering machine for liquid crystal screen production, through the arrangement of the suction mechanism and the heat dissipation mechanism, when tin soldering is carried out, the fixing table is located on the lower side, gas can be pumped out from the peripheral side of a tin soldering part, and the situation that the tin soldering part is subjected to shape change when not completely solidified due to too fast suction is prevented; and after tin soldering is finished, the fixing table is located on the upper side, smoke on the peripheral side of the solidified tin soldering part can be rapidly pumped out, and the overall efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of LCD screen soldering technology, specifically to an automatic soldering machine for LCD screen production. Background Technology

[0002] During production, to increase efficiency, the lifting cylinder and slide table of the LCD screen loading robot are used to transfer the LCD screen to the area below the soldering assembly for soldering. Currently, fully automatic soldering machines are commonly used. During the soldering process, a small amount of smoke is generated. Traditional fully automatic soldering machines use automatic fume extraction equipment to remove the smoke. However, traditional soldering equipment does not have the effect of filtering the smoke. As a result, a small amount of smoke is generated during the soldering process, which causes a small amount of smoke to drift into the working environment, thus affecting the working environment and the health of the workers.

[0003] The patent with publication number CN220127809U uses the cooperation of a fixed shell, a fan, a suction pipe, a hose, a suction head, a filter screen, a fixed shaft, an adjusting plate, a pull block, a fixed rod, a sealing plate, a slot, a locking block, and elastic elements to facilitate the adsorption and filtration of fumes generated during soldering, preventing fumes from polluting the working environment. Moreover, the filter screen is easy to disassemble and clean later, improving the flexibility of use.

[0004] However, the aforementioned patent does not allow for automatic adjustment of the suction area. If the suction is too slow, it will cause the fumes to spread. If the suction is too fast, it will cause the solder to change shape and create gaps before it is fully solidified, which will reduce the product yield. Furthermore, if the tube with a filter is used for suction after the solder has solidified and is cooled, it will consume too much energy and increase costs. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an automatic soldering machine for LCD screen production.

[0006] This invention adopts the following technical solution: an automatic soldering machine for LCD screen production, comprising a slide rail and a sliding table slidably disposed on the slide rail, an electric push rod fixedly connected to one end of the slide rail, the extended end of the electric push rod fixedly connected to the sliding table, a fixing plate provided on the upper side of the slide rail, the upper end of the fixing plate fixedly connected to the upper end of the work box, an electric push rod two fixedly connected to the upper end of the fixing plate, a lifting block fixedly connected to the extended end of the electric push rod two, a fixing table fixedly connected to the outer wall of the extended end of the electric push rod two, a soldering assembly provided at the bottom end of the lifting block, and further comprising: A suction mechanism is provided, capable of automatically adjusting the speed and distance of smoking. The suction mechanism is housed within a fixed platform and includes a fixed platform. An air suction pipe is fixedly connected to the bottom end of the fixed platform, and an air suction hole is opened at the bottom end of the fixed platform. A fixed sleeve is inserted into the upper end of the fixed platform and is fixedly connected to a fixed plate. An exhaust pipe is connected to the upper end of the fixed sleeve, and a cavity is connected to the upper end of the air suction hole. The cavity is located within the fixed platform and is connected to a sliding groove where the fixed sleeve is located. A fixed stop is fixedly connected inside the fixed sleeve, and a rotating frame abuts against the lower side of the fixed stop. The rotating frame is rotatably mounted within the fixed sleeve, and a rotating shaft is rotatably mounted inside the rotating frame. The upper end of the rotating shaft is fixedly connected to the rotating frame, and a torsion spring is fixedly connected between the outer wall of the top end of the rotating shaft and the fixed stop. The heat dissipation mechanism is located within the suction mechanism and can improve heat dissipation efficiency while reducing energy consumption.

[0007] As a further description of the above technical solution: a compression oblique ring is fixedly connected to the bottom end of the rotating shaft, and a top rod is fixedly connected to the lower side of the compression oblique ring inside the fixed platform. A conical groove is opened at the bottom end of the fixed platform, and the bottom end of the conical groove is connected to the suction pipe. The bottom end of the suction pipe is located close to the solder assembly.

[0008] As a further description of the above technical solution: the heat dissipation mechanism includes a slot opened in the inner wall of the fixed sleeve, an annular groove opened on the upper side of the slot at the bottom of the rotating frame, a connecting groove connected to the upper end of the annular groove, an air outlet groove opened in the inner wall of the fixed sleeve, the air outlet groove being located on the upper side of the rotating frame, and an opening opened in the fixed block.

[0009] As a further description of the above technical solution: the air extraction holes are arranged in a ring with equal spacing.

[0010] As a further description of the above technical solution: the bottom end of the extrusion oblique ring is provided with an oblique sliding surface, and two extrusion oblique rings and two top rods are symmetrically provided.

[0011] As a further description of the above technical solution: the rotating frame has through holes, and a filter layer is provided inside the through holes.

[0012] As a further description of the above technical solution: a vertical groove is provided on the upper side of the conical groove, and the diameter of the vertical groove is equal to that of the bottom end of the rotating shaft, and a rubber pad is provided on the outer wall of the bottom end of the rotating shaft.

[0013] As a further description of the above technical solution: the connecting groove is provided in a ring with equal spacing, and the number of connecting grooves, air outlet grooves, openings and through holes on the rotating frame are equal.

[0014] This invention provides an improved automatic soldering machine for LCD screen production, which has the following improvements and advantages compared with the prior art: Firstly, through the design of the suction and heat dissipation mechanisms, when soldering, the fixed platform is located on the lower side, allowing gas to be drawn out from the periphery of the soldering area. This prevents the shape of the soldering area from changing before it is fully solidified due to excessively rapid suction. Furthermore, the area where the opening overlaps with the filter layer on the rotating frame increases, which further automatically reduces the airflow rate and minimizes the impact on the incompletely solidified area. After soldering is completed, the fixed platform is located on the upper side, allowing the gas to quickly extract the fumes from the periphery of the solidified soldering area, improving overall efficiency. Additionally, the area where the opening overlaps with the filter layer on the rotating frame decreases, increasing the airflow rate and further improving the speed at which the fumes are extracted. Secondly, after the smoke is extracted, the fixed platform is moved up again, which can quickly reduce the temperature of the soldering part by extracting air. Moreover, when the gas is extracted, it does not need to pass through the filter layer on the rotating frame, which reduces the obstruction during extraction and improves heat dissipation efficiency. In summary, by designing the suction and heat dissipation mechanisms, during soldering, the fixed platform is positioned at the bottom, allowing gas to be drawn from the periphery of the solder area. This prevents the solder from deforming before it is fully solidified due to excessively rapid suction. Furthermore, the area overlapping the opening with the filter layer on the rotating frame increases, further automatically reducing the airflow velocity and minimizing the impact on the incompletely solidified area. After soldering, the fixed platform is positioned at the top, allowing the gas to quickly extract the fumes from the periphery of the solidified solder area, improving overall efficiency. The area overlapping the opening with the filter layer on the rotating frame decreases, increasing the airflow velocity and further accelerating the extraction of fumes. After the fumes are extracted, the fixed platform is moved upwards, rapidly reducing the temperature of the solder area through air extraction. Since the extracted gas does not need to pass through the filter layer on the rotating frame, the resistance encountered during extraction is reduced, improving heat dissipation efficiency. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the machine of the present invention. Figure 2 ; Figure 3 A perspective sectional view of the fixing platform provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the suction mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the extrusion oblique ring provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the heat dissipation mechanism provided in an embodiment of the present invention; Figure 7 for Figure 3 Enlarged view of point A in the middle; Figure 8 for Figure 4 Enlarged view of point B in the middle; Figure 9 for Figure 4 Enlarged view of point C in the middle.

[0016] In the diagram: 1. Slide rail; 2. Sliding table; 3. Electric push rod one; 4. Solder assembly; 5. Electric push rod two; 6. Fixed plate; 7. Lifting block; 8. Suction mechanism; 81. Fixed table; 82. Suction pipe; 83. Suction hole; 84. Fixed sleeve; 85. Exhaust pipe; 86. Cavity; 87. Rotating shaft; 88. Conical groove; 89. Fixed stop block; 810. Rotating frame; 811. Torsion spring; 812. Extrusion inclined ring; 813. Top rod; 9. Heat dissipation mechanism; 91. Groove; 92. Annular groove; 93. Connecting groove; 94. Air outlet groove; 95. Opening. Detailed Implementation

[0017] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Please see Figure 1 - Figure 9 This invention provides a technical solution: an automatic soldering machine for LCD screen production, including a slide rail 1 and a sliding table 2 slidably disposed on the slide rail 1. One end of the slide rail 1 is fixedly connected to an electric push rod 3, the extended end of which is fixedly connected to the sliding table 2. A fixing plate 6 is provided on the upper side of the slide rail 1, the upper end of which is fixedly connected to the upper end of the work box. An electric push rod 5 is fixedly connected to the upper end of the fixing plate 6, the extended end of which is fixedly connected to a lifting block 7. A fixing table 81 is fixedly connected to the outer wall of the extended end of the electric push rod 5. A soldering assembly 4 is provided at the bottom end of the lifting block 7. The machine also includes: The suction mechanism 8 is capable of automatically adjusting the smoking speed and distance. The suction mechanism 8 is housed within a fixed platform 81. The fixed platform 81 includes a suction pipe 82 fixedly connected to its bottom end, an air extraction hole 83 at its bottom end, and a fixed sleeve 84 inserted into its upper end. The fixed sleeve 84 is fixedly connected to a fixed plate 6, and an exhaust pipe 85 is connected to its upper end. A cavity 86 is connected to the upper end of the air extraction hole 83. Furthermore, the cavity 86 is opened in the fixed platform 81, and the cavity 86 is connected to the slide groove where the fixed sleeve 84 is located. A fixed stop 89 is fixedly connected in the fixed sleeve 84, and a rotating frame 810 is abutted on the lower side of the fixed stop 89. The rotating frame 810 is rotatably arranged in the fixed sleeve 84. A rotating shaft 87 is rotatably arranged in the rotating frame 810. The upper end of the rotating shaft 87 is fixedly connected to the rotating frame 810, and a torsion spring 811 is fixedly connected between the outer wall of the top end of the rotating shaft 87 and the fixed stop 89. And the heat dissipation mechanism 9 can improve heat dissipation efficiency while reducing energy consumption. The heat dissipation mechanism 9 is set inside the suction mechanism 8.

[0019] Specifically, through the arrangement of the suction mechanism 8 and the heat dissipation mechanism 9, when soldering, the fixed platform 81 is located on the lower side, which allows gas to be drawn out from the periphery of the soldering part. This prevents the shape of the soldering part from changing before it is fully solidified due to excessively fast suction. Furthermore, the area of ​​overlap between the opening 95 and the filter layer on the rotating frame 810 increases, thereby automatically reducing the airflow velocity and minimizing the impact on the incompletely solidified part. After soldering is completed, the fixed platform 81 is located on the upper side, which allows the gas to quickly extract the fumes from the periphery of the solidified soldering part, improving overall efficiency. Furthermore, the area of ​​overlap between the opening 95 and the filter layer on the rotating frame 810 decreases, and the airflow velocity increases, thereby further increasing the speed at which the fumes are extracted. After the fumes are extracted, the fixed platform 81 is moved upwards, which allows the temperature of the soldering part to be quickly reduced by suction. Moreover, the gas does not need to pass through the filter layer on the rotating frame 810 when it is extracted, thereby reducing the obstruction encountered during suction and improving heat dissipation efficiency.

[0020] In another embodiment of the present invention, a compression ring 812 is fixedly connected to the bottom end of the rotating shaft 87, and a top rod 813 is fixedly connected to the lower side of the compression ring 812 inside the fixed platform 81. A conical groove 88 is opened at the bottom end of the fixed platform 81, and the bottom end of the conical groove 88 is connected to the suction pipe 82. The bottom end of the suction pipe 82 is located near the solder assembly 4.

[0021] The air extraction port 83 has several holes arranged in a ring at equal intervals.

[0022] The bottom end of the extrusion ring 812 is provided with an inclined sliding surface, and there are two extrusion rings 812 and two push rods 813 symmetrically provided.

[0023] The rotating frame 810 has through holes, and a filter layer is installed inside the through holes.

[0024] A vertical groove is provided on the upper side of the conical groove 88, and the diameter of the vertical groove is equal to that of the bottom end of the rotating shaft 87. A rubber pad is provided on the outer wall of the bottom end of the rotating shaft 87.

[0025] Specifically, through the arrangement of the suction mechanism 8 and the heat dissipation mechanism 9, when soldering, the fixed platform 81 is located on the lower side, which allows gas to be drawn out from the periphery of the soldering part. This prevents the shape of the soldering part from changing before it is fully solidified due to excessively fast suction. In addition, the area of ​​overlap between the opening 95 and the filter layer on the rotating frame 810 increases, which can further automatically reduce the air flow rate and reduce the impact on the part that is not fully solidified. After soldering is completed, the fixed platform 81 is located on the upper side, which can quickly extract the smoke from the periphery of the solidified soldering part, improving the overall efficiency. In addition, the area of ​​overlap between the opening 95 and the filter layer on the rotating frame 810 decreases, and the air flow rate increases, which further increases the speed at which the smoke is extracted.

[0026] In another embodiment of the present invention, the heat dissipation mechanism 9 includes a slot 91 formed in the inner wall of the fixed sleeve 84, an annular groove 92 formed on the upper side of the slot 91 at the bottom end of the rotating frame 810, a connecting groove 93 connected to the upper end of the annular groove 92, an air outlet groove 94 formed in the inner wall of the fixed sleeve 84, the air outlet groove 94 being located on the upper side of the rotating frame 810, and an opening 95 formed in the fixed stop block 89.

[0027] The connecting groove 93 is provided in a ring with equal spacing, and the number of connecting grooves 93, air outlet grooves 94, openings 95 and through holes on the rotating frame 810 is equal.

[0028] Specifically, after the smoke is extracted, the fixed platform 81 is moved upwards, which can quickly reduce the temperature of the soldering part by extracting air. Moreover, when the gas is extracted, it does not need to pass through the filter layer on the rotating frame 810, thereby reducing the obstruction during extraction and improving heat dissipation efficiency.

[0029] Working principle: When using this device, first place the LCD screen on the sliding stage 2, then move the sliding stage 2 directly below the soldering assembly 4 using the electric push rod 3. Then, activate the electric push rod 5 to move the soldering assembly 4 down to the soldering point. At the same time, open the suction mechanism to extract the gas through the fixed sleeve 84 and the exhaust pipe 85. During soldering, fumes will be generated. At this time, the fixed stage 81 is located on the lower side, and the bottom end of the rotating shaft 87 is disengaged from the conical groove 88. At this time, the outer wall of the bottom end of the rotating shaft 87 abuts against the vertical groove on the upper side of the conical groove 88, preventing the gas from passing through the suction pipe 82. At this time, the fixed sleeve 84 moves upward relative to the fixed stage 81, and the outer wall of the fixed sleeve 84 exits from the cavity 8. The six points of separation allow the gas to be extracted after passing through the extraction hole 83, cavity 86, fixed sleeve 84, and exhaust pipe 85. This allows the gas to be extracted from the periphery of the solder area, preventing the shape of the solder area from changing before it is fully solidified due to excessive suction. At this time, the push rod 813 moves away from the extrusion ring 812, causing the extrusion ring 812 and the rotating shaft 87 to rotate under the action of the torsion spring 811. At this time, the area of ​​the opening 95 overlapping with the filter layer on the rotating frame 810 increases. Under the premise that the power of the extraction mechanism remains unchanged, the cross-section of the air flow becomes larger, which will reduce the air flow rate and further automatically reduce the air flow rate, reducing the impact on the incompletely solidified parts. After the soldering is completed, allow the soldered area to cool slightly for a period of time, then move the soldering assembly 4 upwards away from the soldered area to facilitate the subsequent transfer of the LCD screen. At this time, the outer wall of the fixing sleeve 84 blocks the cavity 86, and the bottom end of the rotating shaft 87 is located in the conical groove 88, allowing gas to be drawn out from the suction pipe 82, the conical groove 88, the fixing sleeve 84, and the exhaust pipe 85. This allows the smoke around the solidified soldered area to be quickly extracted, improving overall efficiency. Furthermore, the squeezing oblique ring 812 at the bottom end of the rotating shaft 87 is squeezed by the top rod 813, and the squeezing oblique ring 812 drives the rotating shaft 87 to rotate, making the area of ​​overlap between the opening 95 and the filter layer on the rotating frame 810 smaller, increasing the airflow rate, thereby further improving the smoke extraction speed and further improving work efficiency. After the smoke is extracted, the fixed platform 81 continues to move upward. After being squeezed by the top rod 813, the squeezing inclined ring 812 drives the rotating shaft 87 to continue rotating. The bottom end of the connecting groove 93 coincides with the bottom end of the exhaust groove 94. At this time, the gas is extracted through the suction pipe 82, the fixed sleeve 84, the groove 91, the annular groove 92, the connecting groove 93, the exhaust groove 94 and the exhaust pipe 85. The temperature of the solder part can be quickly reduced by the extraction of air to prevent it from affecting the subsequent process. No other steps are needed for rapid cooling. At this time, when there is no smoke around the solder, the gas around it does not need to pass through the filter layer on the rotating frame 810 when it is extracted. This reduces the resistance during extraction, speeds up heat dissipation, reduces overall energy consumption, and reduces the operating cost of the device.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic soldering machine for LCD screen production, comprising a slide rail (1) and a sliding table (2) slidably disposed on the slide rail (1), wherein an electric push rod (3) is fixedly connected to one end of the slide rail (1), the extended end of the electric push rod (3) is fixedly connected to the sliding table (2), a fixing plate (6) is provided on the upper side of the slide rail (1), the upper end of the fixing plate (6) is fixedly connected to the upper end of the work box, an electric push rod (5) is fixedly connected to the upper end of the fixing plate (6), a lifting block (7) is fixedly connected to the extended end of the electric push rod (5), a fixing table (81) is fixedly connected to the outer wall of the extended end of the electric push rod (5), and a soldering assembly (4) is provided at the bottom end of the lifting block (7), characterized in that, Also includes: The suction mechanism (8) can automatically adjust the smoking speed and distance. The suction mechanism (8) is set in a fixed platform (81). The suction mechanism (8) includes a fixed platform (81). An air suction pipe (82) is fixedly connected to the bottom end of the fixed platform (81). An air suction hole (83) is opened at the bottom end of the fixed platform (81). A fixed sleeve (84) is inserted into the upper end of the fixed platform (81). The fixed sleeve (84) is fixedly connected to a fixed plate (6). An exhaust pipe (85) is connected to the upper end of the fixed sleeve (84). A cavity (86) is connected to the upper end of the air suction hole (83). The cavity (86) is opened in the fixed platform (81). The cavity (86) is connected to the slide groove where the fixed sleeve (84) is located. A fixed stop (89) is fixedly connected in the fixed sleeve (84). A rotating frame (810) abuts against the lower side of the fixed stop (89). The rotating frame (810) is rotatably arranged in the fixed sleeve (84). A rotating shaft (87) is rotatably arranged in the rotating frame (810). The upper end of the rotating shaft (87) is fixedly connected to the rotating frame (810). A torsion spring (811) is fixedly connected between the outer wall of the top end of the rotating shaft (87) and the fixed stop (89). And a heat dissipation mechanism (9) is provided, which can improve heat dissipation efficiency while reducing energy consumption. The heat dissipation mechanism (9) is located inside the suction mechanism (8).

2. The automatic soldering machine for LCD screen production according to claim 1, characterized in that: The bottom end of the rotating shaft (87) is fixedly connected to a compression oblique ring (812), and the lower side of the compression oblique ring (812) is fixedly connected to a top rod (813) inside the fixed platform (81). The bottom end of the fixed platform (81) is provided with a conical groove (88), and the bottom end of the conical groove (88) is connected to the suction pipe (82). The bottom end of the suction pipe (82) is located close to the solder assembly (4).

3. The automatic soldering machine for LCD screen production according to claim 2, characterized in that: The heat dissipation mechanism (9) includes a slot (91) opened on the inner wall of the fixed sleeve (84), an annular groove (92) opened on the upper side of the slot (91) at the bottom of the rotating frame (810), a connecting groove (93) connected to the upper end of the annular groove (92), an air outlet groove (94) opened on the inner wall of the fixed sleeve (84), the air outlet groove (94) is located on the upper side of the rotating frame (810), and an opening (95) is opened in the fixed stop block (89).

4. An automatic soldering machine for LCD screen production according to claim 2, characterized in that: The air extraction holes (83) are arranged in a ring with equal spacing.

5. An automatic soldering machine for LCD screen production according to claim 2, characterized in that: The bottom end of the extrusion ring (812) is provided with an inclined sliding surface, and two extrusion rings (812) and two push rods (813) are provided symmetrically.

6. An automatic soldering machine for LCD screen production according to claim 2, characterized in that: The rotating frame (810) has through holes, and a filter layer is provided inside the through holes.

7. An automatic soldering machine for LCD screen production according to claim 2, characterized in that: The tapered groove (88) has a vertical groove on its upper side, and the vertical groove has the same diameter as the bottom end of the rotating shaft (87). The outer wall of the bottom end of the rotating shaft (87) is provided with a rubber pad.

8. An automatic soldering machine for LCD screen production according to claim 3, characterized in that: The connecting groove (93) is provided in a ring with equal spacing, and the number of through holes on the connecting groove (93), the air outlet groove (94), the opening (95) and the rotating frame (810) is equal.

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