Transformer lead covering device

Abstract

The invention relates to a transformer lead covering device, comprising a workbench and a clamping seat fixedly installed on the top of the workbench, a support plate fixedly installed on one side of the clamping seat, and a clamping groove for clamping the end of the lead, a pressing mechanism for positioning the end of the lead is arranged on the top of the support plate, and a drying mechanism for drying the lead is arranged below the support plate; the extended end of the electric push rod is controlled to extend to the longest, so that the pressing block cooperates with the clamping groove to press the end of the lead to make it flat, and at the same time, the rollers at both ends of the moving frame roll on the corresponding trapezoidal block inclined surface, and then the extended end of the cylinder is controlled to shrink to the shortest, so that the flattened heat shrink sleeve is conveniently sleeved on the ends of several leads, and the hot air flow is sprayed from two L-shaped nozzles, and the two clamping blocks are separated from the heat shrink sleeve, and the heat shrink sleeve shrinks and deforms due to the heat, so as to provide protection for the ends of several leads. This process simplifies the process of installing the heat shrink sleeve and ensures the efficiency of covering.

Description

Technical Field

[0001] The invention relates to the technical field of transformer processing, in particular to a transformer lead covering device. Background Art

[0002] Small transformers are a common device in factory electrical control systems. With the large-scale application of electronic components in power plant control, monitoring and automatic circuits, the application of small transformers is becoming more and more widespread. They are mainly composed of two parts: iron core and winding (coil). The common shapes of iron core are Japanese-shaped, ring-shaped and C-shaped. In order to reduce the loss in the iron core, the iron core of the transformer is made of stacked silicon steel sheets.

[0003] Since the lead insulation layer of the existing toroidal transformer is mostly made of polymer materials, these materials are easy to absorb moisture in a humid environment. When the heat shrink sleeve is used to cover the end of the lead, it is easy to affect the covering efficiency and accelerate the aging of the heat shrink sleeve. At the same time, when covering the end of the toroidal transformer lead, it is inconvenient to position and install the heat shrink sleeve, and manual assistance is required, which reduces the efficiency of covering the end of the toroidal transformer lead. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that when wrapping the end of the toroidal transformer lead wire, it is inconvenient to position and install the heat shrink sleeve, which requires manual assistance and reduces the wrapping efficiency of the lead wire end;

[0006] (2) How to solve the problem that when the end of the lead is covered with a heat shrink sleeve, the moisture on the surface of the heat shrink sleeve easily affects the covering efficiency and accelerates the aging of the heat shrink sleeve.

[0007] The object of the present invention can be achieved by the following technical scheme: a transformer lead covering device, comprising a workbench and a holder fixedly mounted on the top of the workbench, a support plate fixedly mounted on one side of the holder, and a slot for clamping the end of the lead is provided on the top of the holder, a pressing mechanism for positioning the end of the lead is provided on the top of the support plate, and a drying mechanism for drying the lead is provided below the support plate;

[0008] The pressing mechanism comprises a movable plate slidably connected to the top surface of the support plate through a guide rail, an L-shaped flip frame is rotatably connected to the middle of the top surface of the movable plate, a pressing block for pressing the end of the lead is fixedly installed at one end of the L-shaped flip frame, a mounting plate is fixedly connected to one side of the L-shaped flip frame, and a mounting unit for loading the heat shrink sleeve is provided on the other side of the L-shaped flip frame;

[0009] The drying mechanism includes an adjusting cylinder fixedly connected to the side of the base, the back of the adjusting cylinder away from the transmission plate is connected to a connecting pipe, the top of the connecting pipe is connected to a laterally arranged distribution pipe, and a plurality of spray holes are opened on the side of the distribution pipe, and the plurality of spray holes are all arranged toward the top of the base.

[0010] A further technical improvement of the present invention is that a laterally arranged electric push rod is fixedly connected to the middle part of the mounting plate, a third lever is fixedly installed on the protruding end of the electric push rod, the third lever is slidably connected to the bottom of the L-shaped flip frame, and a tension spring is fixedly connected between the middle part of the L-shaped flip frame and the top of the mounting plate.

[0011] A further technical improvement of the present invention is that a fixing frame is fixedly installed at the bottom of the support plate, a transmission plate is rotatably arranged on the fixing frame via a pin shaft, a transversely arranged cylinder is also fixedly installed at the bottom of the support plate, the protruding end of the cylinder is movably connected to the bottom of the transmission plate via a first lever, and the front end surface of the movable plate is movably connected to the top of the transmission plate via a second lever.

[0012] A further technical improvement of the present invention is that the installation unit includes a guide plate fixedly connected to the movable plate, the guide plate is fixedly connected to a limiting frame toward the middle of the side of the card seat, a guide groove is provided on the guide plate on one side of the limiting frame, a longitudinally arranged guide rod is fixedly installed in the guide groove, and two trapezoidal blocks are slidably sleeved on the guide rod.

[0013] A further technical improvement of the present invention is that a first thrust spring is elastically arranged between the two trapezoidal blocks, and the sizes of the two trapezoidal blocks are adapted to the sizes of the guide grooves, the inclined surfaces of the trapezoidal blocks are arranged away from the guide rods, a movable frame is arranged on one side of the guide plate, the movable frame is fixedly connected to the protruding end of the electric push rod, rollers are rotatably arranged at both ends of the movable frame, and the two rollers are respectively rollingly connected to the inclined surfaces of the two trapezoidal blocks.

[0014] A further technical improvement of the present invention is that: a clamping block is fixedly installed at one end of the trapezoidal block, and the two clamping blocks are provided with arc grooves for clamping the heat shrink sleeve on the side facing the limit frame; by controlling the extended end of the electric push rod to extend to the longest, the L-shaped flip frame is driven to flip, so that the pressing block cooperates with the card slot to press the end of the lead wire to make it flat, which is convenient for subsequent coating operations; at the same time, the rollers at both ends of the mobile frame roll on the corresponding trapezoidal block inclined surface, so that the two clamping blocks are close to each other to flatten the heat shrink sleeve, and then the extended end of the cylinder is controlled to shrink to the shortest, which is convenient for subsequent coating operations. The flattened heat shrink sleeve is sleeved on the ends of several lead wires. At the same time, when the extended end of the cylinder shrinks to the shortest, the piston slides between the input end of the connecting pipe and the output end of the intake pipe, and hot air flows out from two L-shaped nozzles to heat the heat shrink sleeves sleeved on the ends of several lead wires, and the extended end of the electric push rod is controlled to shrink to the shortest, so that the two clamping blocks are separated from the heat shrink sleeve, and the heat shrink sleeve shrinks and deforms due to the heat, thereby providing protection for the ends of several lead wires. This process simplifies the process of installing the heat shrink sleeve, avoids manual assistance, and thus ensures the efficiency of covering the end of the lead wire.

[0015] A further technical improvement of the present invention is that: a T-shaped tube is connected to the top of one end of the adjusting cylinder away from the connecting tube, both output ends of the T-shaped tube are connected to L-shaped nozzles, the output ends of the two L-shaped nozzles are arranged toward the end of the lead wire, a hot air blower is arranged on the top of the workbench, the output end of the hot air blower is connected to an air intake pipe, and the output end of the air intake pipe is connected to the middle part of the adjusting cylinder.

[0016] A further technical improvement of the present invention lies in that: a push rod is movably inserted into the side of the adjusting cylinder close to the T-tube, the push rod is arranged horizontally, and a transmission wheel is rotatably arranged at one end of the push rod, the transmission wheel is rollingly connected to the middle part of the transmission plate, and the height of the transmission wheel is higher than the height of the pin shaft, and a piston is fixedly installed at the other end of the push rod, and the piston is slidingly connected to the inner wall of the adjusting cylinder; by turning on the hot air blower, the hot air flow blown out passes through the air inlet pipe, the adjusting cylinder and the connecting pipe, and then enters the distribution pipe and is blown out from several nozzles on its side, thereby increasing the air temperature around the top of the card seat, thereby accelerating the drying speed of the moisture on the lead surface, avoiding affecting the efficiency of the lead coating, and preventing the accelerated aging of the heat shrink sleeve.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the present invention is in use, the extended end of the electric push rod is controlled to extend to the longest, driving the L-shaped flip frame to flip, so that the pressure block cooperates with the card slot to press the end of the lead to make it flat, which is convenient for subsequent covering operation. At the same time, the rollers at both ends of the moving frame roll on the corresponding trapezoidal block inclined surfaces, so that the two clamping blocks are close to each other to flatten the heat shrink sleeve, and then the extended end of the cylinder is controlled to shrink to the shortest, so that the flattened heat shrink sleeve is sleeved on the ends of several lead wires. At the same time, when the extended end of the cylinder is shrunk to the shortest, the piston slides between the input end of the connecting pipe and the output end of the intake pipe, and hot air flows from the two L-shaped nozzles to heat the heat shrink sleeves sleeved on the ends of several lead wires, and the extended end of the electric push rod is controlled to shrink to the shortest, so that the two clamping blocks are separated from the heat shrink sleeve, and the heat shrink sleeve shrinks and deforms due to the heat, thereby providing protection for the ends of several lead wires. This process simplifies the process of installing the heat shrink sleeve, avoids manual assistance, and thus ensures the efficiency of covering the ends of the lead wires.

[0019] When the present invention is in use, the hot air blower is turned on so that the hot air flow blown out passes through the air inlet pipe, the regulating cylinder and the connecting pipe, and then enters the distribution pipe and is blown out from a plurality of spray holes on the side thereof, thereby increasing the air temperature around the top of the card seat, thereby accelerating the drying speed of the moisture on the surface of the lead, avoiding affecting the efficiency of coating the lead, and preventing the accelerated aging of the heat shrink sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the pressing mechanism of the present invention;

[0023] Figure 3 It is a schematic cross-sectional view of the installation unit structure of the present invention;

[0024] Figure 4 It is a three-dimensional exploded schematic diagram of the installation unit structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the drying mechanism structure of the present invention;

[0026] Figure 6 It is a three-dimensional schematic diagram of the local structure of the drying mechanism of the present invention.

[0027] In the figure: 1, drying mechanism; 2, positioning seat; 3, workbench; 4, holder; 5, cylinder; 6, support plate; 7, pressing mechanism; 101, distribution pipe; 102, connecting pipe; 103, adjustment cylinder; 104, piston; 105, air inlet pipe; 106, push rod; 107, L-shaped nozzle; 108, baffle; 109, T-shaped pipe; 701, mounting unit; 702, moving plate; 703, fixing frame; 704, first lever; 705, transmission plate; 706, second lever; 707, third lever; 708, electric push rod; 709, mounting plate; 710, tension spring; 711, L-shaped flip frame; 712, pressure block; 7011, limit frame; 7012, clamping block; 7013, guide plate; 7014, roller; 7015, moving frame; 7016, guide groove; 7017, trapezoidal block; 7018, guide rod; 7019, arc groove. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 6 As shown, a transformer lead covering device includes a workbench 3 and a holder 4 fixedly mounted on the top thereof, a support plate 6 is fixedly mounted on one side of the holder 4, and a slot for clamping the end of the lead is provided on the top of the holder 4, a pressing mechanism 7 for positioning the end of the lead is provided on the top of the support plate 6, and a drying mechanism 1 for drying the lead is provided below the support plate 6.

[0030] See also Figure 1-Figure 6 As shown, the above-mentioned pressing mechanism 7 includes a movable plate 702 which is slidably connected to the top surface of the support plate 6 through a guide rail, and an L-shaped flip frame 711 is rotatably connected to the middle part of the top surface of the movable plate 702, and a pressing block 712 for pressing the end of the lead is fixedly installed at one end of the L-shaped flip frame 711, a mounting plate 709 is fixedly connected to one side of the L-shaped flip frame 711, and an installation unit 701 for loading a heat shrink sleeve is provided on the other side of the L-shaped flip frame 711.

[0031] See also Figure 1-Figure 6 As shown, a laterally arranged electric push rod 708 is fixedly connected to the middle part of the above-mentioned mounting plate 709, a third lever 707 is fixedly installed on the protruding end of the electric push rod 708, the third lever 707 is slidably connected to the bottom of the L-shaped flip frame 711, and a tension spring 710 is fixedly connected between the middle part of the L-shaped flip frame 711 and the top of the mounting plate 709.

[0032] See also Figure 1-Figure 6 As shown, a fixing frame 703 is fixedly installed at the bottom of the above-mentioned support plate 6, and a transmission plate 705 is rotatably arranged on the fixing frame 703 through a pin shaft. A horizontally arranged cylinder 5 is also fixedly installed at the bottom of the support plate 6, and the protruding end of the cylinder 5 is movably connected to the bottom of the transmission plate 705 through a first lever 704, and the front end surface of the movable plate 702 is movably connected to the top of the transmission plate 705 through a second lever 706.

[0033] See also Figure 1-Figure 6 As shown, the above-mentioned installation unit 701 includes a guide plate 7013 fixedly connected to the movable plate 702, the guide plate 7013 is fixedly connected to the limiting frame 7011 toward the middle of the side of the card seat 4, and a guide groove 7016 is opened on the guide plate 7013 on one side of the limiting frame 7011, and a longitudinally arranged guide rod 7018 is fixedly installed in the guide groove 7016, and two trapezoidal blocks 7017 are slidably sleeved on the guide rod 7018.

[0034] See also Figure 1-Figure 6 As shown, a first thrust spring is elastically arranged between the two trapezoidal blocks 7017, and the sizes of the two trapezoidal blocks 7017 are adapted to the sizes of the guide grooves 7016. The inclined surfaces of the trapezoidal blocks 7017 are arranged away from the guide rods 7018. A movable frame 7015 is arranged on one side of the guide plate 7013. The movable frame 7015 is fixedly connected to the protruding end of the electric push rod 708. Rollers 7014 are rotatably arranged at both ends of the movable frame 7015. The two rollers 7014 are respectively connected to the inclined surfaces of the two trapezoidal blocks 7017 in a rolling manner.

[0035] See also Figure 3 and Figure 4As shown, a clamping block 7012 is fixedly installed at one end of the trapezoidal block 7017, and the two clamping blocks 7012 are provided with arc grooves 7019 for clamping the heat shrink sleeve toward the side of the limiting frame 7011; by controlling the extended end of the electric push rod 708 to extend to the longest, the L-shaped flip frame 711 is flipped, so that the pressing block 712 cooperates with the card slot to press the end of the lead wire to make it flat, which is convenient for the subsequent coating operation. At the same time, the rollers 7014 at both ends of the moving frame 7015 roll on the corresponding inclined surface of the trapezoidal block 7017, so that the two clamping blocks 7012 are close to each other to flatten the heat shrink sleeve, and then the extended end of the cylinder 5 is controlled to retract. When the extended end of the cylinder 5 is shrunk to the shortest, it is convenient for the flattened heat shrink sleeve to be put on the ends of several lead wires. At the same time, when the extended end of the cylinder 5 is shrunk to the shortest, the piston 104 slides to between the input end of the connecting pipe 102 and the output end of the intake pipe 105, and the hot air flow is ejected from the two L-shaped nozzles 107 to heat the heat shrink sleeves put on the ends of several lead wires, and the extended end of the electric push rod 708 is controlled to shrink to the shortest, so that the two clamping blocks 7012 are separated from the heat shrink sleeve, and the heat shrink sleeve shrinks and deforms due to the heat, thereby providing protection for the ends of several lead wires. This process simplifies the process of installing the heat shrink sleeve, avoids manual assistance, and thus ensures the efficiency of covering the end of the lead wire.

[0036] See also Figure 1-Figure 6 As shown, the above-mentioned drying mechanism 1 includes an adjusting cylinder 103 fixedly connected to the side of the base 4, and the back side of the adjusting cylinder 103 away from the transmission plate 705 is connected to a connecting pipe 102, and the top of the connecting pipe 102 is connected to a laterally arranged distribution pipe 101, and a plurality of spray holes are opened on the side of the distribution pipe 101, and the plurality of spray holes are all arranged toward the top of the base 4.

[0037] See also Figure 1-Figure 6 As shown, the top of one end of the adjusting cylinder 103 away from the connecting tube 102 is connected to a T-shaped tube 109, and the two output ends of the T-shaped tube 109 are connected to an L-shaped nozzle 107, and the output ends of the two L-shaped nozzles 107 are both arranged toward the end of the lead wire. A hot air blower is arranged on the top of the workbench 3, and the output end of the hot air blower is connected to an air inlet pipe 105, and the output end of the air inlet pipe 105 is connected to the middle part of the adjusting cylinder 103.

[0038] See also Figure 1-Figure 6As shown, the above-mentioned adjusting cylinder 103 is movably inserted with a push rod 106 near the side of the T-shaped tube 109, the push rod 106 is arranged horizontally, and a transmission wheel is rotatably arranged at one end of the push rod 106, the transmission wheel is rollingly connected to the middle of the transmission plate 705, and the height of the transmission wheel is higher than the height of the pin shaft, and a piston 104 is fixedly installed at the other end of the push rod 106, and the piston 104 is slidingly connected to the inner wall of the adjusting cylinder 103; by turning on the hot air blower, the hot air flow blown out passes through the air inlet pipe 105, the adjusting cylinder 103 and the connecting pipe 102, and then enters the distribution pipe 101 and is blown out from several nozzles on its side, thereby increasing the air temperature around the top of the card seat 4, thereby accelerating the drying speed of the moisture on the lead surface, avoiding affecting the efficiency of the lead coating, and preventing the accelerated aging of the heat shrink sleeve.

[0039] See also Figure 5 and Figure 6 As shown, a baffle 108 is fixedly installed in the middle of the push rod 106 , and a second thrust spring is elastically arranged between the baffle 108 and the adjustment cylinder 103 .

[0040] See also Figure 1 As shown, a positioning seat 2 for placing the transformer is fixedly installed on one side of the top of the workbench 3 away from the support plate 6.

[0041] Working principle: When the present invention is used, first, Figure 1 As shown, the toroidal transformer is placed on the positioning seat 2, and then the ends of several leads on it are sequentially clamped in the slots at the top of the clamping seat 4. At this time, the ends of several leads are arranged in a straight line. Figure 1 , Figure 5 and Figure 6 As shown, the extended end of the cylinder 5 is at its longest, and the piston 104 is located between the input end of the T-shaped tube 109 and the output end of the air inlet pipe 105; the hot air blower is turned on, so that the hot air flow blown out passes through the air inlet pipe 105, the regulating cylinder 103 and the connecting pipe 102, and then enters the distribution pipe 101 and blows out from the several spray holes on its side, thereby increasing the air temperature around the top of the card seat 4, thereby accelerating the drying speed of the moisture on the surface of the lead wire, avoiding affecting the efficiency of the lead wire coating, and preventing the accelerated aging of the heat shrink sleeve, as shown in FIG. Figure 2-Figure 4As shown, in the process of drying the lead wire, the heat shrink sleeve is placed between the two arc grooves 7019. At this time, the extended end of the electric push rod 708 is at its shortest; the extended end of the electric push rod 708 is controlled to extend to its longest, so that the third lever 707 drives the L-shaped flip frame 711 to flip, so that the pressing block 712 cooperates with the card slot to press the end of the lead wire to make it flat, which is convenient for subsequent coating operations. At the same time, the rollers 7014 at both ends of the moving frame 7015 roll on the corresponding trapezoidal block 7017 inclined surface, so that the two clamping blocks 7012 are close to each other to flatten the heat shrink sleeve, and then the extended end of the cylinder 5 is controlled to shrink to the shortest, and the pressing block 712 slides on the top of the card seat 4, and the moving plate 702 moves toward the card seat 4, so that the flattened heat shrink sleeve is sleeved on the ends of several leads. At the same time, as shown in FIG. Figure 1-Figure 6 As shown, when the extended end of the cylinder 5 is contracted to the shortest, the transmission plate 705 is rotated to push the push rod 106 and the piston 104 to move, so that the piston 104 slides to between the input end of the connecting pipe 102 and the output end of the intake pipe 105, so that the hot air flow passes through the T-shaped pipe 109 and then enters the two L-shaped nozzles 107. The hot air flow ejected from the two L-shaped nozzles 107 heats the heat shrink sleeves sleeved on the ends of the several lead wires, and then the extended end of the electric push rod 708 is controlled to contract to the shortest, so that the two clamping blocks 7012 are separated from the heat shrink sleeves, and the heat shrink sleeves shrink and deform due to the heat, providing protection for the ends of the several lead wires. This process simplifies the process of installing the heat shrink sleeves, avoids manual assistance, and thus ensures the efficiency of covering the ends of the lead wires; as shown in FIG. Figure 3 and Figure 4 As shown, when the movable plate 702 moves toward the card holder 4, one end of the limit frame 7011 provides a thrust to the ends of the plurality of leads, so that the ends of the plurality of leads are aligned, which facilitates the covering operation.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A transformer lead covering device, comprising a workbench (3) and a holder (4) fixedly mounted on the top of the workbench, a support plate (6) fixedly mounted on one side of the holder (4), and a slot for clamping the end of the lead is provided on the top of the holder (4), characterized in that: A pressing mechanism (7) for positioning the end of the lead wire is provided on the top of the support plate (6), and a drying mechanism (1) for drying the lead wire is provided below the support plate (6); The pressing mechanism (7) comprises a movable plate (702) slidably connected to the support plate (6); an L-shaped flip frame (711) is rotatably connected to the middle of the top surface of the movable plate (702); a pressing block (712) for pressing the end of the lead wire is fixedly mounted on one end of the L-shaped flip frame (711); a mounting plate (709) is fixedly connected to one side of the L-shaped flip frame (711); and a mounting unit (701) for loading a heat shrink sleeve is provided on the other side of the L-shaped flip frame (711); The drying mechanism (1) comprises an adjusting cylinder (103) fixedly connected to the side of the holder (4); the back of one end of the adjusting cylinder (103) away from the transmission plate (705) is connected to a connecting pipe (102); the top of the connecting pipe (102) is connected to a distribution pipe (101); a plurality of spray holes are provided on the side of the distribution pipe (101); an electric push rod (708) is fixedly connected to the middle of the mounting plate (709); a third lever (707) is fixedly mounted on the protruding end of the electric push rod (708); the third lever (707) is connected to the L-shaped flip frame The bottom of the L-shaped flip frame (711) is slidably connected, a tension spring (710) is fixedly connected between the middle of the L-shaped flip frame (711) and the top of the mounting plate (709), a fixing frame (703) is fixedly installed at the bottom of the support plate (6), a transmission plate (705) is rotatably arranged on the fixing frame (703) via a pin shaft, a cylinder (5) is also fixedly installed at the bottom of the support plate (6), an extended end of the cylinder (5) is movably connected to the bottom of the transmission plate (705), and a front end surface of the movable plate (702) is movably connected to the top of the transmission plate (705); The top of one end of the regulating cylinder (103) away from the connecting pipe (102) is connected to a T-shaped pipe (109), and both output ends of the T-shaped pipe (109) are connected to an L-shaped nozzle (107), and the output ends of the two L-shaped nozzles (107) are arranged toward the end of the lead wire. A hot air blower is arranged on the top of the workbench (3), and the output end of the hot air blower is connected to an air intake pipe (105), and the output end of the air intake pipe (105) is connected to the middle of the regulating cylinder (103). A push rod (106) is movably inserted on the side of the regulating cylinder (103) close to the T-shaped pipe (109), and a transmission wheel is rotatably arranged at one end of the push rod (106), and the transmission wheel is rollingly connected to the middle of the transmission plate (705), and the height of the transmission wheel is higher than the height of the pin shaft. A piston (104) is fixedly installed on the other end of the push rod (106), and the piston (104) is slidably connected to the inner wall of the regulating cylinder (103).

2. A transformer lead covering device according to claim 1, characterized in that: The mounting unit (701) comprises a guide plate (7013) fixedly connected to the movable plate (702); the guide plate (7013) is fixedly connected to a limiting frame (7011) at the middle of the side of the card seat (4); a guide groove (7016) is provided on the guide plate (7013) on one side of the limiting frame (7011); a guide rod (7018) is fixedly installed in the guide groove (7016); and two trapezoidal blocks (7017) are slidably sleeved on the guide rod (7018).

3. A transformer lead covering device according to claim 2, characterized in that: A first thrust spring is elastically arranged between the two trapezoidal blocks (7017), and the sizes of the two trapezoidal blocks (7017) are matched with the sizes of the guide grooves (7016). The inclined surfaces of the trapezoidal blocks (7017) are arranged away from the guide rods (7018). A movable frame (7015) is arranged on one side of the guide plate (7013). The movable frame (7015) is fixedly connected to the protruding end of the electric push rod (708). Rollers (7014) are rotatably arranged at both ends of the movable frame (7015). The two rollers (7014) are respectively connected in a rolling manner to the inclined surfaces of the two trapezoidal blocks (7017).

4. A transformer lead covering device according to claim 2, characterized in that: A clamping block (7012) is fixedly mounted on one end of the trapezoidal block (7017), and arc grooves (7019) for clamping the heat shrink sleeve are provided on the sides of the two clamping blocks (7012) facing the limiting frame (7011).

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