An automatic soldering tin dipping device for semi-finished network transformers

Abstract

The present invention is applicable to the technical field of network transformers and provides an automatic tin dipping device for semi-finished network transformers, comprising a casing, an inner wall of the casing is provided with a reciprocating feeding and discharging component, and a support plate is fixedly installed between the inner walls on both sides of the casing, a tin liquid box located in the reciprocating feeding and discharging component is fixedly installed on the top of the support plate, a heating component is provided inside the tin liquid box, a slag pressing filter plate is attached to the top of the inner wall of the four sides of the tin liquid box, and a second spring is fixed to the four corners of the bottom of the slag pressing filter plate. The present invention forms a tin dipping device with the function of continuously feeding and discharging the semi-finished network transformer, and the pins of the network transformer are brought into contact with the tin liquid in the tin liquid box, so as to facilitate the tin dipping treatment of the network transformer, and the tin slag floating on the top surface of the tin liquid box will be pressed into the tin liquid box by the slag pressing filter plate, thereby achieving a high tin dipping efficiency and solving the problem that the tin slag in the existing method will adhere to the pins of the network transformer.

Description

Technical Field

[0001] The invention belongs to the technical field of network transformers, and in particular relates to an automatic tinning device for a semi-finished network transformer. Background Art

[0002] A network transformer, also known as a "data transformer" or a network isolation transformer, performs two primary functions on a network interface. First, it transmits data by filtering the differential signal sent by the PHY using differential-mode coupling coils to enhance the signal. This signal is then coupled to the other end of the network cable through electromagnetic field conversion, with the signal being coupled to the other end. Second, it isolates the voltage levels of different network devices connected by the network cable to prevent damage from different voltages transmitted through the cable. Furthermore, data transformers can provide lightning protection for devices. They are primarily used in network switches, routers, network cards, and hubs, providing signal coupling, high-voltage isolation, impedance matching, and electromagnetic interference suppression.

[0003] Network transformers can be divided into two categories based on their structural type: discrete network transformers and RJ45 connectors with internal integrated magnetic transformer modules. During the manufacturing process of network transformers, the transformer pins need to be tinned to connect the pins to the coil copper wire and play a certain fixing role. However, when the tin liquid is used, a layer of tin liquid slag will float on the top surface, which will affect the efficiency during the tinning process.

[0004] After searching, a device for tinning a network transformer with patent publication number CN216632919U and a device for tinning a network transformer with patent publication number CN216632919U both have the following shortcomings: due to the floating tin slag on the surface of the tin liquid, the tin liquid cannot be completely attached to the transformer pins during the automatic tinning of the network transformer, thereby reducing the efficiency of the tinning process. Moreover, there is no structure for cleaning the tin slag attached to the surface of the tin liquid in the existing method, so that the tin slag is also immersed in the transformer pins along with the tin liquid, resulting in poor stability. Therefore, it is urgent to design an automatic tinning device for semi-finished network transformers to solve the above problems. Summary of the Invention

[0005] The present invention provides an automatic tin dipping device for a semi-finished network transformer, aiming to solve the problem that the existing device has no structure for cleaning tin slag attached to the tin liquid surface, so that the tin slag is also immersed in the transformer pins along with the tin liquid, resulting in poor stability performance.

[0006] The invention is achieved in this way: a semi-finished network transformer automatic tinning device comprises a casing, the inner wall of the casing is provided with a reciprocating feed and discharge component, and a support plate is fixedly installed between the inner walls of both sides of the casing, a tin liquid box located in the reciprocating feed and discharge component is fixedly installed on the top of the support plate, a heating component is provided inside the tin liquid box, a slag filter plate is affixed to the top of the inner wall of the four sides of the tin liquid box, and a second spring is fixed at the four corners of the bottom of the slag filter plate, and the bottom of the second spring is fixed with a fixing seat between the inner wall of the tin liquid box, a protective frame is fixedly installed at the top corner of the casing, and a forward and reverse motor is fixedly installed at one end of the top middle position of the protective frame, a threaded rod is fixedly installed on the output shaft of the forward and reverse motor, and a lifting frame is screwed on the outer wall of the threaded rod, an extrusion seat is fixedly installed on the bottom of the lifting frame, the extrusion seat is located directly above the slag filter plate, a protective rubber pad is bonded to the bottom of the extrusion seat, and L-shaped pressing plates are fixed to the bottoms of both ends of the lifting frame.

[0007] Furthermore, the reciprocating feeding and discharging assembly includes a rotating shaft rotatably connected to the two ends of the inner wall of the casing, and hubs are fixed at both ends of the outer walls of the two rotating shafts, and a stepping motor for driving one of the rotating shafts to rotate is fixed to the outer wall of one side of the casing, the outer walls of the four hubs are engaged with two annular racks, and the outer walls of the two annular racks are engaged with equidistantly distributed receiving frames, and the receiving frames are provided with tooth grooves engaged with the annular racks at both ends of the side in contact with the annular racks, and movable grooves are provided at the bottom of the middle position of the inner walls around the receiving frame, and the inner wall of the movable groove and the bottom of the inner walls around the receiving frame are connected with the same support frame for placing a network transformer, the top of the movable groove is provided with a through hole, and the top of the middle position of the four sides of the support frame is fixed with a T-shaped movable rod passing through the through hole, and the top of the T-shaped movable rod is fixed with a first spring between the top of the T-shaped movable rod and the top surface of the receiving frame.

[0008] Furthermore, the inner walls on both sides of the casing are provided with an inner ring groove and an outer ring groove, and the inner diameter of the inner ring groove is smaller than the inner diameter of the outer ring groove. The center points of the two ends of the inner ring groove coincide with the center points of the two ends of the outer ring groove and the center point of the rotating shaft. The middle positions of the two ends of the receiving frame are fixed with a first guide rod inserted in the inner ring groove and a second guide rod inserted in the outer ring groove.

[0009] Furthermore, the extrusion seat corresponds to the center of the receiving frame, and the L-shaped pressure plates are located at both ends of the receiving frame. The bottoms of the two L-shaped pressure plates are provided with guide grooves for the T-shaped movable rod to pass through. The bottom surfaces of the two L-shaped pressure plates are lower than the bottom surface position of the extrusion seat and higher than the top surface position of the receiving frame.

[0010] Furthermore, guide sleeves are fixed to the tops of both ends of the lifting frame, and the inner walls of the guide sleeves are plugged with guide posts fixed to the inner wall of the top of the protective frame.

[0011] Furthermore, a circular hole is formed on a top side of the protection frame away from the extrusion seat, and a drying fan is fixedly installed on the inner wall of the circular hole.

[0012] Furthermore, the heating assembly includes a heater fixedly mounted on one side of the tin liquid box, and a heating tube fixedly mounted on one side of the heater and plugged into the tin liquid box, and a mounting port for mounting the heater is opened on one side of the housing.

[0013] Furthermore, the same supporting base is fixedly installed at the four corners of the bottom of the housing, and universal wheels are fixedly installed at the four corners of the bottom of the supporting base.

[0014] The present invention further provides that an oblique opening is opened at one end of the housing, and a storage frame is fixedly installed at one end of the oblique opening, and a protective pad is adhered to the corner of the inner wall of one end of the storage frame.

[0015] The present invention also provides that a mounting hole is provided at one end of the tin liquid box, and the inner wall of the mounting hole is connected to a transmission shaft through a sealed bearing, a worm gear is fixed to one end of the transmission shaft, a worm for driving the worm gear to rotate is fixed to the middle position of one of the rotating shafts, and stirring blades distributed at equal distances are fixedly installed on the outer wall of one side of the transmission shaft extending into the tin liquid box, and a plurality of slow flow holes are provided on the stirring blades, and the stirring blades are located below the heating tube.

[0016] After adopting the above structure, the present invention has the following advantages compared with the prior art:

[0017] In the present invention, due to the coordinated arrangement of the reciprocating feeding and discharging assembly and the inner and outer annular grooves, a tinning device capable of continuously feeding and discharging the semi-finished network transformer is formed. In actual use, the semi-finished network transformer is placed on the support frame in the receiving frame, and the pins of the semi-finished network transformer are directed downward through the support frame. The stepping motor in the reciprocating feeding and discharging assembly is used to drive the rotating shaft, the hub and the annular rack to rotate. Through the meshing action of the annular rack and the tooth groove and the limiting action of the inner and outer annular grooves on the first guide rod and the second guide rod, the receiving frame is caused to perform a cyclic motion in the casing, thereby facilitating the carrying of the semi-finished network transformer in and out of the device, so that the entire device realizes convenient feeding and discharging operations of the semi-finished network transformer before and after tinning.

[0018] In the present invention, due to the coordinated use of the heating component, the forward and reverse motors, the extrusion seat and the L-shaped pressing plate, when the receiving frame is moved to the bottom of the extrusion seat for tin dipping, the heating component is used to heat the tin liquid in the tin liquid box, so that the tin liquid is always in a molten state, and the forward and reverse motors drive the threaded rod to rotate, thereby lowering the height of the lifting frame on the threaded rod, lowering the height of the extrusion seat and the L-shaped pressing plate, and because the bottom surface of the L-shaped pressing plate is lower than the height of the extrusion seat, when the extrusion seat contacts the network transformer, the L-shaped pressing plate also contacts the slag pressing filter plate. , when it continues to move downward, the extrusion seat will push the network transformer, the support frame and the T-shaped movable rod downward, the second spring will be compressed, and the slag pressing filter plate will be pressed into the tin liquid in the tin liquid box under the extrusion of the L-shaped pressing plate. At this time, the pins of the network transformer will contact the tin liquid in the tin liquid box, which is convenient for tin immersion treatment of the network transformer, and the tin slag floating on the top surface of the tin liquid box will be pressed into the tin liquid box by the slag pressing filter plate, achieving a high tin immersion efficiency, solving the problem of tin slag adhering to the pins of the network transformer in the existing method, and improving the working efficiency of the tin immersion process;

[0019] In the present invention, since stirring blades are provided in the tin liquid box, when the stepping motor drives the rotation of the rotating shaft, the transmission shaft and the stirring blades are driven to rotate in the tin liquid box through the meshing action of the worm and the worm wheel. The stirring blades are used to stir the tin liquid in the tin liquid box so that it fully contacts the heating component, so that the tin liquid is fully kept in a molten state, thereby avoiding the problem of tin liquid solidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0021] 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 paying any creative labor.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is an overall cross-sectional view of the present invention.

[0024] Figure 3 It is a schematic diagram of the overall structure of the annular rack and the receiving frame of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the worm and the slag press filter plate of the present invention.

[0026] Figure 5 It is a schematic diagram of the outer ring groove and inner ring groove structure of the present invention.

[0027] Figure 6 It is a bottom view of the accommodating frame of the present invention.

[0028] Figure 7 It is a cross-sectional view of the tin liquid box of the present invention.

[0029] Figure 8 Schematic diagram of the threaded rod and extrusion seat structure of the present invention

[0030] Reference numerals:

[0031] 1. Casing; 2. Heater; 3. Stepper motor; 4. Support chassis; 5. Storage frame; 6. Ring rack; 7. Forward and reverse motor; 8. Drying fan; 9. Protection frame; 10. Protection pad; 11. Storage frame; 12. Support plate; 13. Tin liquid box; 14. Wheel hub; 15. L-shaped pressure plate; 16. Rotating shaft; 17. Second guide rod; 18. First guide rod; 19. Worm gear; 20. Worm; 21. Slag filter plate; 22. Mounting port; 23. Inner ring groove; 24. Outer ring groove; 25. Support frame; 26. Tooth groove; 27. Movable groove; 28. T-shaped movable rod; 29. First spring; 30. Drive shaft; 31. Stirring blade; 32. Second spring; 33. Heating tube; 34. Threaded rod; 35. Lifting frame; 36. Guide column; 37. Extrusion seat; 38. Guide groove. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] In order to effectively illustrate the embodiments of the present invention, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0034] Example 1

[0035] Please refer to Figures 1-8, an automatic tin dipping device for a semi-finished network transformer, comprising a casing 1, the inner wall of the casing 1 is provided with a reciprocating feed and discharge assembly, and a support plate 12 is fixedly installed between the inner walls of both sides of the casing 1, a tin liquid box 13 located in the reciprocating feed and discharge assembly is fixedly installed on the top of the support plate 12, a heating component is provided inside the tin liquid box 13, a slag filter plate 21 is fitted on the top of the inner wall of the four sides of the tin liquid box 13, and a second spring 32 is fixed at the four corners of the bottom of the slag filter plate 21, and a fixing seat is fixed between the bottom of the second spring 32 and the inner wall of the tin liquid box 13, a protective frame 9 is fixedly installed at the top corner of the casing 1, and a forward and reverse motor 7 is fixedly installed at one end of the top middle position of the protective frame 9, a threaded rod 34 is fixedly installed on the output shaft of the forward and reverse motor 7, a lifting frame 35 is screwed on the outer wall of the threaded rod 34, and an extrusion The pressure seat 37 and the extrusion seat 37 are located just above the slag pressing filter plate 21. A protective rubber pad is bonded to the bottom of the extrusion seat 37. L-shaped pressure plates 15 are fixed to the bottom of both ends of the lifting frame 35. The threaded rod 34 is driven to rotate by the forward and reverse motor 7 to lower the height of the lifting frame 35 on the threaded rod 34, and the height of the extrusion seat 37 and the L-shaped pressure plate 15 is lowered. The extrusion seat 37 will push the network transformer, the support frame 25 and the T-shaped movable rod 28 downward, and the slag pressing filter plate 21 will be pressed into the tin liquid in the tin liquid box 13 under the extrusion action of the L-shaped pressure plate 15. At this time, the pins of the network transformer will contact the tin liquid in the tin liquid box 13, which is convenient for tin immersion of the network transformer, and the tin slag floating on the top surface of the tin liquid box 13 will be pressed into the tin liquid box 13 by the slag pressing filter plate 21, achieving a high tin immersion efficiency and solving the problem that the tin slag in the existing method will adhere to the pins of the network transformer.

[0036] In this embodiment, the reciprocating feeding and discharging assembly includes a rotating shaft 16 rotatably connected to the two ends of the inner wall of the casing 1, and hubs 14 are fixed at both ends of the outer walls of the two rotating shafts 16. A stepping motor 3 for driving one of the rotating shafts 16 to rotate is fixed to the outer wall of one side of the casing 1. The outer walls of the four hubs 14 are engaged with two annular racks 6, and the outer walls of the two annular racks 6 are engaged with equidistantly distributed receiving frames 5. The receiving frame 5 is provided with tooth grooves 26 that mesh with the annular rack 6 at both ends of the side in contact with the annular rack 6. The bottom of the middle position of the inner wall around the receiving frame 5 is provided with a movable groove 27, and the inner wall of the movable groove 27 is plugged into the bottom of the inner wall around the receiving frame 5. The same support frame 25 for placing the network transformer has a through hole on the top of the movable groove 27, and a T-shaped movable rod 28 passing through the through hole is fixed on the top of the middle position of the four sides of the support frame 25. The top of the T-shaped movable rod 28 is fixed with a first spring 29 between the top of the T-shaped movable rod 28 and the top surface of the receiving frame 5. The stepper motor 3 in the reciprocating feeding and discharging assembly drives the rotating shaft 16, the hub 14 and the annular rack 6 to rotate. The engagement of the annular rack 6 with the tooth groove 26 makes the receiving frame 5 circulate in the casing 1, thereby facilitating the carrying of the semi-finished network transformer in and out of the device, so that the entire device can realize the convenient feeding and discharging operation of the semi-finished network transformer before and after tinning.

[0037] In this embodiment, an inner ring groove 23 and an outer ring groove 24 are provided on the inner walls of both sides of the casing 1, and the inner diameter of the inner ring groove 23 is smaller than the inner diameter of the outer ring groove 24. The centers of the two ends of the inner ring groove 23 coincide with the centers of the two ends of the outer ring groove 24 and the center of the rotating shaft 16. The middle positions of the two ends of the receiving frame 5 are fixed with a first guide rod 18 inserted in the inner ring groove 23 and a second guide rod 17 inserted in the outer ring groove 24.

[0038] In this embodiment, the extrusion seat 37 corresponds to the center of the receiving frame 5, and the L-shaped pressure plate 15 is located at both ends of the receiving frame 5. The bottom of the two L-shaped pressure plates 15 is provided with a guide groove 38 for the T-shaped movable rod 28 to pass through. The bottom surface position of the two L-shaped pressure plates 15 is lower than the bottom surface position of the extrusion seat 37 and higher than the top surface position of the receiving frame 5.

[0039] In this embodiment, guide sleeves are fixed to the tops of both ends of the lifting frame 35, and the inner walls of the guide sleeves are connected to guide columns 36 fixed to the inner walls of the top of the protective frame 9. During the lifting process of the lifting frame 35, the guide sleeves always slide in the guide columns 36 to maintain the vertical directionality of the lifting frame 35.

[0040] In this embodiment, a circular hole is opened on the top side of the protective frame 9 away from the extrusion seat 37, and a drying fan 8 is fixedly installed on the inner wall of the circular hole. After the tinning is completed, the tinned network transformer is moved to the bottom of the drying fan 8 through the reciprocating feeding and discharging assembly, and the tinning position is dried by the drying fan 8 to make it quickly take shape.

[0041] In this embodiment, the heating assembly includes a heater 2 fixedly mounted on one side of the tin liquid box 13, and a heating tube 33 fixedly mounted on one side of the heater 2 and plugged into the tin liquid box 13. A mounting port 22 for mounting the heater 2 is provided on one side of the housing 1. The heater 2 and the heating tube 33 in the heating assembly are used to heat the tin liquid in the tin liquid box 13, so that the tin liquid is always in a molten state.

[0042] In this embodiment, the four bottom corners of the housing 1 are fixedly mounted with a same supporting base 4, and the four bottom corners of the supporting base 4 are fixedly mounted with universal wheels, so that the entire device has an effect of being easy to move.

[0043] Example 2

[0044] Reference Figure 1 and Figure 2 In another embodiment of the present invention, an oblique opening is opened at one end of the casing 1, and a storage frame 11 is fixedly installed at one end of the oblique opening. A protective pad 10 is adhered to the corner of the inner wall of one end of the storage frame 11. The receiving frame 5 is driven to rotate by the reciprocating feeding and discharging component. When the receiving frame 5 flips over, the network transformer inside it can fall into the receiving frame 11 by gravity for storage, and the protective pad 10 protects its falling process, which is convenient for collecting.

[0045] Example 3

[0046] Reference Figure 4 and Figure 7 In another embodiment of the present invention, a mounting hole is provided at one end of the tin liquid box 13, and a transmission shaft 30 is connected to the inner wall of the mounting hole through a sealed bearing. A worm gear 19 is fixed to one end of the transmission shaft 30, and a worm 20 for driving the worm gear 19 to rotate is fixed at the middle position of one of the rotating shafts 16. The outer wall of one side of the transmission shaft 30 extending into the tin liquid box 13 is fixed with stirring blades 31 distributed at equal distances, and each stirring blade 31 is provided with a plurality of slow flow holes. The stirring blades 31 are located below the heating tube 33. During the rotation of the rotating shaft 16, the transmission shaft 30 and the stirring blades 31 are driven to rotate in the tin liquid box 13 through the meshing action of the worm gear 20 and the worm gear 19. The stirring blades 31 are used to stir the tin liquid in the tin liquid box 13 so that it is fully in contact with the heating component, so that the tin liquid is fully kept in a molten state, and the problem of tin liquid solidification is avoided.

[0047] In summary, with the help of the above technical solution of the present invention: in actual use, the semi-finished network transformer is placed on the support frame 25 in the receiving frame 5, and the pins of the semi-finished network transformer are facing downward through the support frame 25, and the stepping motor 3 in the reciprocating feeding and discharging assembly is used to drive the rotating shaft 16, the hub 14 and the annular rack 6 to rotate, and the engagement of the annular rack 6 with the tooth groove 26 and the limiting effect of the inner ring groove 23 and the outer ring groove 24 on the first guide rod 18 and the second guide rod 17 make the receiving frame 5 circulate in the casing 1, thereby facilitating the carrying of the semi-finished network transformer in and out of the device, so that the entire device can realize the convenience of reloading the semi-finished network transformer. The loading and unloading operations of the press before and after tinning, when the receiving frame 5 moves to the bottom of the extrusion seat 37 for tinning operation, the heating component is used to heat the tin liquid in the tin liquid box 13, so that the tin liquid is always in a molten state, and the threaded rod 34 is driven to rotate by the forward and reverse motor 7 to reduce the height of the lifting frame 35 on the threaded rod 34, reduce the height of the extrusion seat 37 and the L-shaped pressing plate 15, and because the bottom surface of the L-shaped pressing plate 15 is lower than the height of the extrusion seat 37, when the extrusion seat 37 contacts the network transformer, the L-shaped pressing plate 15 also contacts the slag pressing filter plate 21, and when it continues to move downward, the extrusion seat 37 will push the network transformer, the support frame 25 and the T-shaped movable rod 2 8 moves downward, the second spring 32 will be compressed, and the slag pressing filter plate 21 will be pressed into the tin liquid in the tin liquid box 13 under the extrusion of the L-shaped pressing plate 15. At this time, the pins of the network transformer will be in contact with the tin liquid in the tin liquid box 13, which is convenient for tin immersion of the network transformer, and the tin slag floating on the top surface of the tin liquid box 13 will be pressed into the tin liquid box 13 by the slag pressing filter plate 21, achieving a high tin immersion efficiency, solving the problem that the tin slag will adhere to the pins of the network transformer in the existing method, and improving the working efficiency of the tin immersion process. When the tin immersion is completed, the lifting frame 35, the extrusion seat 37 and the L-shaped pressing plate 15 are reset, so that the network transformer and the support frame 25 are in contact with the tin liquid in the first spring 2 9 reset action and the slag filter plate 21 resets under the reset action of the second spring 32, so that the transformer pin is separated from the tin liquid box 13, and the network transformer after tinning is moved to the bottom of the drying fan 8 through the reciprocating feeding and discharging component, and the tinning position is dried by the drying fan 8 to make it quickly formed. In the process of the stepping motor 3 driving the rotation shaft 16 to rotate, the transmission shaft 30 and the stirring blade 31 are driven to rotate in the tin liquid box 13 through the meshing action of the worm 20 and the worm wheel 19, and the stirring blade 31 is used to stir the tin liquid in the tin liquid box 13 so that it is fully in contact with the heating component, so that the tin liquid is fully kept in a molten state, avoiding the problem of tin liquid solidification.

[0048] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "fixed" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," "right," etc. are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0049] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0050] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic tinning device for semi-finished network transformers, including a housing, characterized in that: A reciprocating feed and discharge assembly is provided on the inner wall of the casing, and a support plate is fixedly installed between the inner walls on both sides of the casing, a tin liquid box located in the reciprocating feed and discharge assembly is fixedly installed on the top of the support plate, and a heating assembly is provided inside the tin liquid box, a slag press filter plate is fitted on the top of the inner wall around the tin liquid box, and a second spring is fixed at the four corners of the bottom of the slag press filter plate, and a fixing seat is fixed between the bottom of the second spring and the inner wall of the tin liquid box, a protective frame is fixedly installed at the top corner of the casing, and a forward and reverse motor is fixedly installed at one end in the middle position of the top of the protective frame, a threaded rod is fixedly installed on the output shaft of the forward and reverse motor, a lifting frame is screwed on the outer wall of the threaded rod, an extrusion seat is fixedly installed on the bottom of the lifting frame, the extrusion seat is located directly above the slag press filter plate, a protective rubber pad is bonded to the bottom of the extrusion seat, and L-shaped pressing plates are fixed to the bottoms of both ends of the lifting frame; The reciprocating feeding and discharging assembly includes a rotating shaft rotatably connected to the two ends of the inner wall of the casing, and hubs are fixed at both ends of the outer walls of the two rotating shafts, a stepping motor for driving one of the rotating shafts to rotate is fixed to the outer wall of one side of the casing, the outer walls of the four hubs are engaged with two annular racks, and the outer walls of the two annular racks are engaged with equidistantly distributed receiving frames, and the receiving frames are provided with tooth grooves engaged with the annular racks at both ends of the side in contact with the annular racks, and movable grooves are provided at the bottom of the middle position of the inner walls of the receiving frame, and the inner wall of the movable groove and the bottom of the inner walls of the receiving frame are connected with the same support frame for placing a network transformer, the top of the movable groove is provided with a through hole, and the top of the middle position of the four sides of the support frame is fixed with a T-shaped movable rod passing through the through hole, and the top of the T-shaped movable rod is fixed with a first spring between the top of the top of the receiving frame; An inner ring groove and an outer ring groove are formed on the inner walls of both sides of the housing, and the inner diameter of the inner ring groove is smaller than that of the outer ring groove. The centers of the two ends of the inner ring groove coincide with the centers of the two ends of the outer ring groove and the center of the rotating shaft. A first guide rod inserted into the inner ring groove and a second guide rod inserted into the outer ring groove are fixed at the middle position of both ends of the receiving frame. The extrusion seat corresponds to the center of the receiving frame, and the L-shaped pressure plates are located at both ends of the receiving frame. The bottoms of the two L-shaped pressure plates are provided with guide grooves for the T-shaped movable rod to pass through. The bottom surfaces of the two L-shaped pressure plates are lower than the bottom surface of the extrusion seat and higher than the top surface of the receiving frame.

2. The automatic tinning device for semi-finished network transformers according to claim 1, characterized in that: The tops of both ends of the lifting frame are fixed with guide sleeves, and the inner walls of the guide sleeves are plugged with guide posts fixed on the inner wall of the top of the protection frame.

3. The automatic tinning device for semi-finished network transformers according to claim 2, characterized in that: A circular hole is provided on one side of the top of the protection frame away from the extrusion seat, and a drying fan is fixedly installed on the inner wall of the circular hole.

4. The automatic tinning device for semi-finished network transformers according to claim 3, characterized in that: The heating assembly includes a heater fixedly mounted on one side of the tin liquid box, and a heating tube fixedly mounted on one side of the heater and plugged into the tin liquid box. One side of the housing is provided with an installation port for installing the heater.

5. The automatic tinning device for semi-finished network transformers according to claim 1, characterized in that: The four bottom corners of the housing are fixedly mounted with a same supporting base, and the four bottom corners of the supporting base are all fixedly mounted with universal wheels.

6. The automatic tinning device for semi-finished network transformers according to claim 1, characterized in that: An oblique opening is provided at one end of the housing, and a storage frame is fixedly installed at one end of the oblique opening. A protective pad is adhered to a corner of an inner wall of one end of the storage frame.

7. The automatic tinning device for semi-finished network transformers according to claim 1, characterized in that: A mounting hole is provided at one end of the tin liquid box, and the inner wall of the mounting hole is connected to a transmission shaft through a sealed bearing. A worm gear is fixed to one end of the transmission shaft, and a worm for driving the worm gear to rotate is fixed at the middle position of one of the rotating shafts. Stirring blades distributed at equal distances are fixedly installed on the outer wall of one side of the transmission shaft extending into the tin liquid box, and a plurality of slow flow holes are provided on the stirring blades. The stirring blades are located below the heating tube.

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