Glue binding machine

Abstract

The utility model discloses a cementing machine which is used for cementing a composite transformer bushing, the composite transformer bushing comprises an oil conservator, an insulator, a flange, an in-oil insulation pipe and an end base which are connected in sequence, the cementing machine comprises an electric cylinder device, a main body frame, a heating device, a supporting device and a pressure device, and the electric cylinder device is located outside the main body frame; the power supply is used for providing power for the binding machine; the heating device comprises a first heating device, a second heating device and a third heating device which are sequentially arranged on the main body frame at intervals in the first direction, and the supporting device comprises a first supporting device and a second supporting device which are movably and sequentially arranged on the main body frame at intervals in the first direction; the first supporting device is located between the first heating device and the second heating device and used for supporting the insulator. The second supporting device is located between the second heating device and the third heating device and used for supporting the in-oil insulation pipe, and the pressure device is used for applying pressure to the first heating device and the third heating device.

Description

Technical Field

[0001] This application relates to the field of composite transformer bushing manufacturing technology, and in particular to a binding machine. Background Technology

[0002] Adhesive bonding is currently the most widely used assembly method for composite transformer bushing products. It mainly utilizes the gelling or solidifying properties of adhesives to fill the gaps reserved between the composite pipe and the flange, connecting the two and forming a product that meets the mechanical and electrical characteristics requirements.

[0003] Existing composite transformer bushing bonding methods generally employ vertical bonding, which requires bonding each connection point of the composite transformer bushing sequentially, necessitating at least four bonding operations. This results in low production efficiency and a low first-pass yield. Furthermore, existing horizontal bonding methods are currently only suitable for composite insulator structures and cannot achieve the same bonding effect as composite transformer bushings. Therefore, a novel bonding machine with a different structure is needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a gluing machine that employs a horizontal gluing process. This machine can simultaneously glu the flanges at both ends of a hollow composite insulator with a conductive rod. By setting up a pressure device, the gluing pressure is kept stable to avoid bias pressure. Furthermore, dynamic pressure is applied throughout the gluing process to prevent flatness errors caused by heat deformation of the heating plate during gluing, effectively improving the product qualification rate. The machine is also easy to operate and has high production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: A binding machine is provided for binding composite transformer bushings. The composite transformer bushing includes an oil conservator, an insulator, a flange, an oil-insulating tube, and an end base connected in sequence. The binding machine includes an electric cylinder device, a main frame, a heating device, a support device, and a pressure device. The electric cylinder device is located outside the main frame and is used to provide power to the binding machine. The heating device includes a first heating device, a second heating device, and a third heating device arranged sequentially and at intervals along a first direction on the main frame. The support device includes a first support device and a second support device movably arranged sequentially and at intervals along the first direction on the main frame. The first support device is located between the first and second heating devices and is used to support the insulator. The second support device is located between the second and third heating devices and is used to support the oil-insulating tube. The pressure device is used to apply pressure to the first and third heating devices.

[0006] In one embodiment, the oil tank is mounted on the first heating device, the flange is mounted on the second heating device, and the end base is mounted on the third heating device. The pressure device includes a first pressure device and a second pressure device. The first pressure device drives the first heating device, and the second pressure device drives the third heating device, so that the oil tank is glued to the first end of the insulator, the second end of the insulator is glued to the first end of the flange, the second end of the flange is glued to the first end of the oil insulating tube, and the second end of the oil insulating tube is glued to the end base.

[0007] In one embodiment, the main frame includes a main base, a first fixing plate, a second fixing plate, and a plurality of first guide rods. The main base is arranged along a first direction, and the first fixing plate and the second fixing plate are arranged at both ends of the main base along the first direction. The plurality of first guide rods are fixedly connected between the first fixing plate and the second fixing plate, and the plurality of first guide rods are arranged along the first direction. The plurality of first guide rods pass through a first heating device, a second heating device, and a third heating device in sequence. The first guide rods are used to guide the first heating device and the third heating device to move along the first direction.

[0008] In one embodiment, the first heating device includes a first pressure plate, which is movably connected to the main frame. A first heat insulation plate, a first heating plate, and a first transition plate are sequentially fixedly connected to the side of the first pressure plate near the second heating device. The first transition plate is disposed facing the first support device, and the oil tank is fixedly connected to the first transition plate.

[0009] In one embodiment, the first heating device further includes a first adhesive receiving groove, which is fixed to the first pressure plate and located below the first heating plate and extends along a first direction to the outside of the first heating plate.

[0010] In one embodiment, the first heating device is further provided with an extension device on the side away from the first support device. The extension device includes a first connecting plate, a second connecting plate and a plurality of extension members. The first connecting plate is disposed close to the first pressure plate, and the extension members are adjustablely engaged between the first connecting plate and the second connecting plate.

[0011] In one embodiment, the second heating device includes a second pressure plate with a U-shaped opening structure. A second heat insulation plate, a second heating plate, and a second transition plate with a U-shaped opening structure are sequentially fixedly connected to the side of the second pressure plate near the first heating device. The second transition plate is disposed facing the first support device, and a flange is fixedly connected to the second transition plate.

[0012] In one embodiment, the first support device includes a first bracket, a first movable bracket, a second movable bracket, and a first support portion. The first bracket is slidably connected to the main frame. The first movable bracket is movably disposed on the first bracket along a second direction. The second movable bracket is movably disposed on the first movable bracket along a vertical direction. The first support portion is located on the second movable bracket. The second direction is perpendicular to the first direction and the second direction and the first direction are located in the same horizontal plane.

[0013] In one embodiment, the second support device includes a second bracket, a third movable bracket, a fourth movable bracket, and a second support portion. The second bracket is slidably connected to the main frame. The third movable bracket is movably disposed on the second bracket along a second direction. The fourth movable bracket is movably disposed on the third movable bracket along a vertical direction. The second direction is perpendicular to the first direction and the second direction and the first direction are located in the same horizontal plane. The second support portion is movably disposed on the fourth movable bracket.

[0014] The pressure device includes a drive rod, a pressure head, a pressure sensor, and a pressure plate. The drive rod drives the pressure head to move the first heating device or the third heating device along a first direction. The pressure sensor is located between the pressure head and the pressure plate. The pressure device is connected to the first heating device or the third heating device through the pressure plate.

[0015] The beneficial effects of this application are as follows: Unlike the prior art, the binding machine of this application includes a main frame, a first heating device, a second heating device, a third heating device, a first support device, a second support device, and a pressure device. It can simultaneously bind various components of composite transformer bushings, realizing the horizontal binding process of composite transformer bushings, that is, binding of four parts at one time. Furthermore, by setting up the pressure device, the binding pressure is kept stable, avoiding the phenomenon of uneven pressure. Moreover, dynamic pressure is applied throughout the binding process, which can prevent flatness errors caused by heat deformation of the heating plate during the binding process, effectively improving the product qualification rate. It is also easy to operate and has high production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the perfect binding machine 100 in one embodiment;

[0018] Figure 2 This is a plan view of the perfect binding machine 100 in one embodiment;

[0019] Figure 3 This is a schematic diagram of the structure of the transformer bushing 20 in one embodiment;

[0020] Figure 4 This is a partial plan view of the perfect binding machine 100 in one embodiment;

[0021] Figure 5 This is a three-dimensional structural schematic diagram of the first heating device 130 in one embodiment;

[0022] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0023] Figure 7 This is a three-dimensional structural schematic diagram of the first transition plate 134 in one embodiment;

[0024] Figure 8 This is a three-dimensional structural schematic diagram of the first connecting plate 181 in one embodiment;

[0025] Figure 9 This is a plan view of the extension member 183 in one embodiment;

[0026] Figure 10 This is a three-dimensional structural schematic diagram of the first pressure device 121 in one embodiment;

[0027] Figure 11 This is a three-dimensional structural schematic diagram of the second heating device 140 clamping flange 23 in one embodiment;

[0028] Figure 12 This is a side plan view of the second heating device 140 in one embodiment;

[0029] Figure 13 This is a three-dimensional structural schematic diagram of the third heating device 150 in one embodiment;

[0030] Figure 14 This is a three-dimensional structural schematic diagram of the first support device 160 in one embodiment;

[0031] Figure 15 This is a three-dimensional structural schematic diagram of the second support device 170 in one embodiment. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] See Figures 1-3In one embodiment, a gluing machine 100 is provided for gluing composite transformer bushings 20. The composite transformer bushing 20 includes an oil conservator 21, an insulator 22, a flange 23, an oil-insulating tube 24, and an end base 25 connected in sequence. The oil conservator 21 is glued to the first end 221 of the insulator 22, the second end 222 of the insulator 22 is glued to the first end 231 of the flange 23, the second end 232 of the flange 23 is glued to the first end 241 of the oil-insulating tube 24, and the second end 242 of the oil-insulating tube 24 is glued to the end base 25. That is, four gluing connection structures are formed on the composite transformer bushing 20. The binding machine 100 includes an electric cylinder device 101, a main frame 110, a heating device, a support device, and a pressure device. The pressure device applies pressure to the various components of the composite transformer bushing 20, ensuring stable pressure during the binding process and preventing pressure imbalance. Furthermore, the dynamic pressure application throughout the binding process prevents flatness errors caused by heating plate deformation, effectively improving the binding pass rate. The electric cylinder device 101, located outside the main frame 110, provides power to the binding machine 100.

[0034] For ease of explanation, the length direction of the main frame 110 is defined as the first direction F1, and the width direction of the main frame 110 is defined as the second direction F2. The first direction F1 and the second direction F2 are both located on the same horizontal plane, and the second direction F2 is perpendicular to the first direction F1.

[0035] The heating device includes a first heating device 130, a second heating device 140, and a third heating device 150 arranged sequentially and at intervals along a first direction F1 on the main frame 110. The first heating device 130 and the third heating device 150 are movably arranged on the main frame 110, while the second heating device 140 is fixedly connected to the main frame 110, allowing the distance between the first heating device 130 and the second heating device 140, and the distance between the second heating device 140 and the third heating device 150, to be adjustable. The support device includes a first support device 160 and a second support device 170 arranged sequentially and at intervals along a first direction F1 on the main frame 110. The first support device 160 is located between the first heating device 130 and the second heating device 140 and is used to support the insulator 22. The second support device 170 is located between the second heating device 140 and the third heating device 150 and is used to support the oil-insulating tube 24.

[0036] The main frame 110 includes a main base 111, a first fixing plate 112, a second fixing plate 113, and several first guide rods 114. The main base 111 is a metal frame structure, arranged along the first direction F1, and is used to support all the devices on the binding machine 100. The first fixing plate 112 and the second fixing plate 113 are arranged at both ends of the main base 111 along the first direction F1, and the positions of the first fixing plate 112 and the second fixing plate 113 are relatively fixed, suitable for binding composite transformer bushings 20 within a certain length range. At the same time, the first heating device 130 is arranged near the first fixing plate 112, and the third heating device 150 is arranged near the second fixing plate 113. The side of the first fixing plate 112 away from the second fixing plate 113 is provided with an electric cylinder device 101 and an electrical cabinet (not shown), which is used to provide power support for the first heating device 130. Similarly, the side of the second fixing plate 113 away from the first fixing plate 112 is also provided with an electric cylinder device 101 and an electrical cabinet (not shown), which is used to provide power support for the third heating device 150.

[0037] Both the first fixing plate 112 and the second fixing plate 113 are rectangular plates, and the first fixing plate 112 and the second fixing plate 113 are fixedly connected by four first guide rods 114, so that the main frame 110 is fixed as a whole. The four first guide rods 114 are arranged in a rectangular pattern, that is, the ends of the four first guide rods 114 form the four vertices of a rectangle, making the position between the first fixing plate 112 and the second fixing plate 113 relatively fixed and the connection more stable. In this embodiment, the two ends of the four first guide rods 114 are fixedly connected to the first fixing plate 112 and the second fixing plate 113 respectively, and all four first guide rods 114 are arranged along the first direction F1. The four first guide rods 114 sequentially pass through the first heating device 130, the second heating device 140, and the third heating device 150, and are used to guide the first heating device 130 and the third heating device 150 to move along the first direction F1, ensuring that the axis of the oil tank 21, the axis of the flange 23, and the axis of the end base 25 are collinear and parallel to the first direction F1. In other embodiments, the number of first guide rods is not specifically limited, as long as they can guide the movement direction of the heating device.

[0038] Specifically, the first heating device 130 clamps and fixes the oil tank 21, the first support device 160 supports and installs the insulator 22, the second heating device 140 clamps and fixes the flange 23, the second support device 170 supports and installs the oil insulating tube 24, and the third heating device 150 clamps and fixes the end base 25, so that each component of the composite transformer bushing 20 is stably supported and the axis of each component is parallel to the first direction F1, while ensuring that each component is coaxially arranged. The pressure device drives the first heating device 130 and the third heating device 150 to move along the first direction F1, and the first heating device 130 and the third heating device 150 move in opposite directions, moving the oil conservator 21 to match and fix the first end 221 of the insulator 22, and the end base 25 to match and fix the second end 242 of the oil insulating tube 24, and drives the first support device 160 and the second support device 170 to match and fix the second end 222 of the insulator 22 to match and fix the first end 231 of the flange 23, and the first end 241 of the oil insulating tube 24 to match and fix the second end 232 of the flange 23; at the same time, the first heating device 130, the second heating device 140 and the third heating device 150 heat the oil conservator 21, the flange 23 and the end base 25 respectively, so as to realize the bonding between the various components of the composite transformer bushing 20. By movably arranging the first heating device 130 and the third heating device 150, the first heating device 130 and the third heating device 150 can stably clamp composite transformer bushings 20 of different lengths, thereby making the binding machine 100 suitable for binding composite transformer bushings 20 of different lengths and expanding the application range of the binding machine 100. The axial direction of the composite transformer bushing 20 is parallel to the first direction F1, that is, the length direction of the main frame 110 and the axial direction of the composite transformer bushing 20 are in the same direction.

[0039] The main base 111 is a rectangular frame structure made of metal. The main base 111 includes two first frames 1111 arranged along the first direction F1. The two first frames 1111 are parallel to each other and spaced apart along the second direction F2. Two second frames 1112 are fixedly connected to the two ends of the two first frames 1111 respectively. The two second frames 1112 are parallel to each other along the second direction F2. The two first frames 1111 and the two second frames 1112 constitute a rectangular frame structure. The main base 111 also includes a pad 1113 and a base plate 1114. The base plate 1114 is located at the bottom of the main base 111. The pad 1113 is disposed on the base plate 1114 and located below the first frame 1111 and the second frame 1112. The pad 1113 can be used to increase the overall height of the first frame 1111 and the second frame 1112, so that the top surface of the first frame 1111 and the second frame 1112 is higher than the ground. The base plate 1114 is used to make the pad 1113 and the first frame 1111 and the second frame 1112 securely connected together. The first fixing plate 112 and the second fixing plate 113 are respectively fixedly connected to the two second frames 1112. The upper surfaces of the two first frames 1111 and the upper surfaces of the two second frames 1112 are located in the same horizontal plane. The first frame 1111 and the second frame 1112 are both cuboid structural components, and the base plate 1114 is a flat structural component. The first frame 1111, the second frame 1112, the pad 1113 and the base plate 1114 together form a box structure.

[0040] Two first guide rails 115 are provided on the main frame 110. The first guide rails 115 are fixed above the main base 111 along the first direction F1. Specifically, the two first guide rails 115 are respectively arranged on the two first frames 1111, and the first guide rails 115 are located between the first fixing plate 112 and the second fixing plate 113. The first heating device 130 and the third heating device 150 are slidably connected to the two first guide rails 115, so that the first heating device 130 and the third heating device 150 can move along the first direction F1. The first heating device 130 moves back and forth between the first fixing plate 112 and the second heating device 140, and the third heating device 150 moves back and forth between the second heating device 140 and the second fixing plate 113. In this embodiment, the two first guide rails 115 are disposed above the main body base 111, meaning that the height of the two first guide rails 115 is higher than the top surface of the main body base 111, that is, the height of the two first guide rails 115 is higher than the upper surface of the first frame 1111. For example, they can be located at a position of one-quarter, one-third, or one-half of the overall height of the first frame 1111, as long as they are not located at the bottom of the first frame 1111. Compared with the structure of the bottom guide rail in the traditional glue binding machine, this can avoid glue from splashing out of the flange and dripping onto the bottom guide rail during the glue binding operation, such as when glue injection begins or stops, which would prevent the first heating device 130 and the third heating device 150 from moving smoothly along the first direction F1.

[0041] Two second guide rails 116 extending along the first direction F1 are also provided on the surface of the base plate 1114 facing the first frame 1111. The two second guide rails 116 are spaced apart between the two first frames 1111 along the second direction F2, that is, in the second direction F2, the two second guide rails 116 are located between the two first guide rails 115. At the same time, in the first direction F1, the second guide rails 116 are located between the first fixing plate 112 and the second fixing plate 113, and the upper top surface of the second guide rails 116 is lower than the first frame 1111. The first support device 160 and the second support device 170 are slidably connected to the two second guide rails 116, so that the first support device 160 and the second support device 170 can move along the first direction F1. The first support device 160 moves back and forth between the first heating device 130 and the second heating device 140, and the second support device 170 moves back and forth between the second heating device 140 and the third heating device 150. The first support device 160 can be set to one, two or more, depending on the length requirement of the insulator 22, as long as it can stably support the insulator 22. The second support device 170 can also be set to one, two or more, without any restriction.

[0042] Combination Figure 4 , Figure 5 and Figure 6As shown, the first heating device 130 is used to heat the oil tank 21, so that the oil tank 21 is glued and fixed to the first end 221 of the insulator 22. The first heating device 130 includes a first pressure plate 131, which is a rectangular plate. The first pressure plate 131 is movably mounted on the first guide rail 115 via a slider and is movably connected to the main frame 110. The first guide rod 114 passes through the first pressure plate 131, so that the first pressure plate 131 moves along the length direction of the first guide rod 114, i.e., the first direction F1. The first pressure plate 131 is positioned close to the first fixing plate 112, so that the first heating device 130 is positioned close to the first fixing plate 112.

[0043] The first heating device 130 also includes a first heat insulation plate 132, a first heating plate 133, and a first transition plate 134 that are fixedly connected in sequence. The first heat insulation plate 131 is located on the side near the second heating device 140. The first heat insulation plate 132, the first heating plate 133, and the first transition plate 134 are all rectangular plates. The first heat insulation plate 132, the first heating plate 133, and the first transition plate 134 have the same size and are fixedly connected in sequence to form the heating body. The first transition plate 134 faces the first support device 160. The oil tank 21 is fixedly connected to the first transition plate 134, so that the heating body can directly contact the oil tank 21 for heating. The first heating device 130 also includes a first mounting plate 135, which is slightly larger than the first heat insulation plate 132. The heating body is fixed to the first pressure plate 131 via the first mounting plate 135. The first heat insulation plate 132 in the heating body is fixed in contact with the first mounting plate 135, and the first heating plate 133 is fixedly connected to the oil tank 21 via a first transition plate 134. Specifically, in the first direction F1, the first pressure plate 131, first mounting plate 135, first heat insulation plate 132, first heating plate 133, and first transition plate 134 are sequentially fixedly connected. The first heat insulation plate 132 is provided to prevent heat transfer between the first heating plate 133 and the first pressure plate 131, reducing heat loss and improving heating efficiency. Furthermore, the first heating plate 133 is movably connected to the main frame 110 via the first pressure plate 131, rather than being directly movably connected to the main frame 110, to prevent the first heating plate 133 from contacting other components and reducing heat loss.

[0044] Since the size of the first mounting plate 135 is slightly larger than that of the first heat insulation plate 133, after the heating body is positioned and fixed to the first mounting plate 135 by pins, the outer edge of the first mounting plate 135 protruding from the heating body is fixedly connected to the first pressure plate 131 by mounting parts 136. A rotary clamping cylinder 137 is also fixed on the first pressure plate 131. The fixing part 1371 of the rotary clamping cylinder 137 is fixedly connected to the first pressure plate 131, so that the rotary clamping cylinder 137 is fixed as a whole; the clamping part 1372 of the rotary clamping cylinder 137 abuts against the first transition plate 134, thereby clamping and fixing the heating body, and fixing the first transition plate 134, the first heating plate 133 and the first heat insulation plate 132. At the same time, the first transition plate 134, the first heating plate 133, the first heat insulation plate 132, the first mounting plate 135 and the first pressure plate 131 are sequentially inserted by pins to fix the positioning between the plates and prevent deflection. Two rotary clamping cylinders 137 are provided, located at two opposite corners of the first mounting plate 135 of the rectangular plate. The two clamping parts 1372 respectively clamp the two opposite corners of the first transition plate 134, enhancing the clamping of the first transition plate 134 and making the heating body firmly connected.

[0045] The rotary clamping cylinder 137 avoids the need for fasteners to fix the first heating plate 133 and the first transition plate 134. Since the first transition plate 134 is adapted to the structure of the oil conservator 21 (see below for details), and different composite transformer bushings 20 have oil conservators 21 with different structures or sizes, the first transition plate 134 needs to be frequently disassembled. If fasteners are used for fixing, it will cause fastening wear to the first heating plate 133 and the first transition plate 134. The rotary clamping cylinder 137 eliminates the need for fasteners. The first heating plate 133 and the first transition plate 134 can be positioned by pins, which is convenient to operate and improves the service life of the first heating device 130.

[0046] In this embodiment, a heating tube is installed inside the first heating plate 133 to heat the oil reservoir 21 during the bonding process. In this embodiment, the heating tube inside the first heating plate 133 is a resistance heating tube, which has high heating efficiency, automatic temperature control, and is easy to install and maintain. In other embodiments, other types of heating tubes can be used, as long as they can reach the bonding temperature required by the oil reservoir; this is not a limitation.

[0047] Continue to combine Figure 7The first transition plate 134 includes a transition plate body 1341 and a protrusion 1342. The transition plate body 1341 is directly contacted and fixed to the first heating plate 133. The protrusion 1342 is disposed on the side of the transition plate body 1341 away from the first heating plate 133. The transition plate body 1341 is provided with a plurality of mounting holes (not shown in the figure). The plurality of mounting holes are arranged along the circumference of the protrusion 1342 and are located on the outer side of the protrusion 1342. After the oil tank 21 is sleeved on the outer periphery of the protrusion 1342, the end face of the oil tank 21 matches and corresponds to the mounting holes on the transition plate body 1341 and is fixed by fasteners, so that the oil tank 21 is fixed on the first transition plate 134. The protrusion 1342 is a disc-shaped component. The oil tank 21 is fitted onto the outer periphery of the protrusion 1342, and the size of the protrusion 1342 matches the inner diameter of the oil tank 21. The outer periphery of the protrusion 1342 abuts against the inner wall of the oil tank 21, enabling the oil tank 21 to be accurately positioned and preventing it from shifting during the gluing process. Simultaneously, two notches 1343 are symmetrically provided at the lower end of the first transition plate 134 for inserting pins to position and fix the first transition plate 134.

[0048] Continue reading Figure 5 A heating wire box 102 is also provided on the first pressure plate 131. The heating wire box 102 is located on the first pressure plate 131 and above the first heat insulation plate 132 and the first heating plate 133. The heating wire box 102 has a cuboid structure. The heating wire box 102 is used to house the heating wires and provides protection. The heating wire box 102 can be made of metal or heat insulation material to better achieve heat insulation and prevent the heating wires from overheating.

[0049] A first temperature measuring device 138 is also provided on the first pressure plate 131. The first temperature measuring device 138 is located on the first pressure plate 131. The first temperature measuring device 138 can monitor the surface temperature of the oil tank 21. When the temperature does not reach the temperature required for bonding, the first heating plate 133 is controlled by the electrical cabinet to continue heating. When the temperature exceeds the set temperature, the first heating plate 133 is controlled to stop heating immediately, eliminating the need for manual monitoring and saving labor costs. In this embodiment, the first temperature measuring device 138 is an infrared temperature measuring head, which adopts non-contact temperature measurement and will not affect the bonding state of the oil tank 21. It also has the advantages of wide measurement range, fast temperature measurement speed, high accuracy, and high sensitivity. In other embodiments, the temperature sensor can also be other types of sensors, such as thermocouples, thermistors, and other contact temperature sensors, as long as they can monitor the bonding temperature of the oil tank in real time and accurately. They can also be set in other locations to monitor the temperature. No specific restrictions are made here.

[0050] The first pressure plate 131 is further provided with a first adhesive receiving groove 139. The first adhesive receiving groove 139 is fixed on the first pressure plate 131 and located below the first heating plate 133 and extends along the first direction F1 to the outside of the first heating plate 133. This allows the first adhesive receiving groove 139 to be used to receive the adhesive overflowing from the oil tank 21. It can ensure that the first adhesive receiving groove 139 can move synchronously with the first pressure plate 131 along the first direction F1 and is always located below the first heating plate 133. That is, when the oil tank 21 is fixed on the first heating plate 133 and glued to the insulator 22, the first adhesive receiving groove 139 is always located below the oil tank 21, so as to receive the adhesive overflowing from the oil tank 21 in time and avoid the adhesive dripping on the ground and making it difficult to clean.

[0051] Combination Figure 4 , Figure 8 and Figure 9 As shown, an extension device 180 is also connected to the side of the first heating device 130 away from the first support device 160. The extension device 180 includes a first connecting plate 181, a second connecting plate 182, and several extension members 183. The first connecting plate 181 is disposed on the side of the first pressure plate 131 away from the first support device 160. After the first connecting plate 181 is in close contact with the first pressure plate 131, it is slidably connected to the first guide rail 115 via the same slider. The second connecting plate 182 is connected to the first connecting plate 181 along... The first connecting plate 181 is positioned at an interval F1 and located on the side of the first connecting plate 181 away from the first pressure plate 131. The first connecting plate 181 and the second connecting plate 182 are fixedly connected by an extension member 183. The second connecting plate 182 is also slidably connected to the first guide rail 115 via a slider. The first guide rod 114 passes sequentially through the first pressure plate 131, the first connecting plate 181, and the second connecting plate 182, allowing the extension device 180 to move along the first guide rail 115 along the first direction F1, together with the first heating device 130. After the first guide rod 114 passes sequentially through the first pressure plate 131, the first connecting plate 181, and the second connecting plate 182, one end of the first guide rod 114 is fixed to the first fixing plate 112. Both the first connecting plate 181 and the second connecting plate 182 are rectangular plates, and their length and width are consistent with the first pressure plate 131, facilitating the overall movement of the extension device 180.

[0052] Specifically, the extension component 183 includes an extension cylinder 1831 and two connecting discs 1832. The extension cylinder 1831 is a hollow cylindrical structure, and the two connecting discs 1832 are fixedly connected to both ends of the extension cylinder 1831. The extension component 183 is adjustablely positioned between the first connecting plate 181 and the second connecting plate 182 via the connecting discs 1832. The hollow cylindrical structure of the extension cylinder 1831 can reduce the overall weight and manufacturing cost of the extension component 183. Of course, the extension cylinder can also be made into a solid structure; this is not a limitation. A mounting block 1811 is provided on the side of the first connecting plate 181 away from the first pressure plate 131. The mounting block 1811 is a U-shaped block, closed at one end and open at the other. The cross-section of the open end is two L-shaped openings facing each other. The distance between the closest ends of the two long sides of the two L-shapes (sides extending along the second direction F2) matches the outer diameter of the extension cylinder 1831. The distance between the two short sides of the two L-shapes (sides extending along the first direction F1) matches the outer diameter of the connecting plate 1832. The distance between the two long sides of the two L-shapes and the surface of the first connecting plate 181 matches the thickness of the connecting plate 1832. Similarly, the second connecting plate 182 is also provided with the same mounting block 1811 on the side close to the first connecting plate 181, which will not be described in detail here. Therefore, stepped cavities are formed between the mounting block 1811 and the first connecting plate 181, and between the mounting block 1811 and the second connecting plate 182. The extension member 183 is respectively secured in the stepped cavities of the first connecting plate 181 and the second connecting plate 182 via two connecting discs 1832, thus fixing the relative positions of the first connecting plate 181 and the second connecting plate 182. The length of the extension tube 1831 along the first direction F1 is designed according to specific requirements.

[0053] Since the second heating device 140 is fixedly connected to the main frame 110, the position between the first fixing plate 112 and the second heating device 140 is relatively fixed. For composite transformer bushings 20 of different lengths, the length of their insulators 22 is also different. By adding an extension device 180 between the first heating device 130 and the first fixing plate 112, and by adjusting the length of the extension tube 1831, the distance between the first heating device 130 and the first fixing plate 112 can be adjusted, thus making it suitable for composite transformer bushings 20 of various lengths. One or more extension members 183 can be provided between the first heating device 130 and the first fixing plate 112. The multiple extension members 183 are connected and fixed to each other by a connecting plate 1832. The specific details will not be elaborated. By matching the multiple extension members 183, the extension tube 1831 can be designed into multiple small-sized specifications. The multiple small-sized extension members 183 can be spliced ​​together to adapt to composite transformer bushings 20 of various sizes. This avoids the need to design multiple large-sized extension members 183 of different lengths. That is, a certain number of extension members 183 can be spliced ​​together to form composite transformer bushings 20 of various specifications, thereby reducing the manufacturing cost of the extension device 180.

[0054] Continue reading Figure 1 , Figure 2 and Figure 4 The pressure device driving the first heating device 130 is the first pressure device 121. The first pressure device 121 is disposed between the first fixing plate 112 and the extension device 180, specifically disposed on the side of the second connecting plate 182 away from the first connecting plate 181. The first pressure device 121 applies pressure directly to the extension device 180, thereby applying pressure to the entire first heating device 130, and then applying adhesive pressure to the oil conservator 21 clamped on the first heating device 130, so that the oil conservator 21 and the insulator 22 are in close contact, thereby ensuring that the fitting position of the oil conservator 21 when it is sleeved on the outer periphery of the insulator 22 meets the design requirements of the composite transformer bushing 20, and ensuring the adhesive quality.

[0055] Combination Figure 10 The first pressure device 121 includes a drive rod 1211, a pressure head 1212, and a pressure sensor 1213. The drive rod 1211 drives the pressure head 1212 to move the first heating device 130 along the first direction F1 and provides adhesive pressure during the adhesive bonding process. The pressure of the first pressure device 121 is adjustable in the range of 0.5 to 5T to meet the adhesive bonding requirements of different types of composite transformer bushings.

[0056] The drive rod 1211 has a long rod-shaped structure. The end of the drive rod 1211 near the pressure head 1212 has a circular cross-section for easy connection with the pressure head 1212. The other end has a curved rectangular cross-section, meaning one pair of opposite sides are straight lines and the other pair of opposite sides are curved, ensuring a reliable and slip-free connection between the drive rod 1211 and the electric cylinder device 101. The pressure head 1212 has a cylindrical structure. A connecting block 12111 is provided at the end of the drive rod 1211 that contacts the pressure head 1212 for fixed connection. The connecting block 12111 has a cylindrical structure, and the diameter of its cross-section is larger than the diameter of the cross-section at the end of the drive rod 1211 near the pressure head 1212. In other embodiments, the shapes of the drive rod and the connecting block can also be other shapes, such as a prism for the drive rod and a cuboid for the connecting block. No specific limitations are imposed here; the actual requirements shall prevail.

[0057] A pressure sensor 1213 is disposed between the pressure head 1212 and the pressure plate 1214. Specifically, the first pressure device 121 also includes a pressure plate 1214, which is a rectangular plate. The first pressure device 121 is connected to the second connecting plate 182 through the pressure plate 1214. The cross-section of the pressure plate 1214 is larger than the cross-section of the pressure head 1212. The pressure transmitted through the pressure plate 1214 can ensure the uniformity, stability, and continuity of pressure during the gluing process. The pressure sensor 1213, disposed between the pressure head 1212 and the pressure plate 1214, can accurately sense the pressure between the first pressure device 121 and the second connecting plate 182. In this embodiment, the accuracy of the pressure sensor 1213 is 100N, and it can work with the drive rod 1211 to sense and adjust the gluing pressure applied by the first pressure device 121. When the pressure detected by the pressure sensor 1213 is insufficient to meet the required bonding pressure, a signal is transmitted to the electrical cabinet, which then controls the drive rod 1211 to drive the pressure head 1212 to continuously apply pressure to the first heating device 130. This causes the first heating device 130 to move along the first direction F1 towards the second fixed plate 113 until the pressure detected by the pressure sensor 1213 reaches the required bonding pressure. When the pressure exceeds the required bonding pressure, the drive rod 1211 immediately stops applying pressure and releases the pressure to the required level. This ensures that the pressure remains stable throughout the bonding process, eliminating the flatness error between the oil conservator 21 and the insulator 22 caused by the deformation of the heating plate due to heat during the bonding process after a single pressure application in existing bonding machines. Furthermore, it eliminates the need for manual monitoring, saving labor costs. In other embodiments, the accuracy of the pressure sensor can also be of other types, as long as it meets the bonding requirements of the composite transformer bushing.

[0058] The first pressure device 121 also includes a locking block 1215. The locking block 1215 is a U-shaped block with one end closed and the other end open. The cross-section of the open end is an L-shape with two openings facing each other. The distance between the long sides of the two L-shapes (the sides extending along the first direction F1) is the same as the diameter of the cross-section of the connecting block 12111. The distance between the closest ends of the two short sides of the two L-shapes (the sides extending along the second direction F2) is the same as the diameter of the cross-section of the drive rod 1211 near the pressure head 1212. When the locking block 1215 is fixed to the pressure head 1212, a stepped receiving cavity is formed between the locking block 1215 and the pressure head 1212. The drive rod 1211 and the connecting block 12111 are precisely locked in the stepped receiving cavity. During assembly, first, the locking block 1215 is fixedly connected to the pressure head 1212. Then, the connecting block 12111 is snapped into the stepped receiving cavity for easy positioning. Next, the connecting block 12111 is fixedly connected to the pressure head 1212, thus achieving a fixed connection between the drive rod 1211 and the pressure head 1212. Furthermore, since a stepped receiving cavity is formed between the locking block 1215 and the pressure head 1212, the connecting block 12111 can also be directly snapped into the stepped receiving cavity, achieving a fixed connection between the drive rod 1211 and the pressure head 1212 without further fixing.

[0059] The drive rod 1211 is driven by a servo motor, which allows for precise control of the extension and retraction distance of the drive rod 1211. Together with the pressure head 1212, pressure plate 1214, and pressure sensor 1213, it can precisely apply pressure to the first heating device 130, providing stable adhesive bonding pressure. In other embodiments, the pressure device can be driven by other types of motors or other driving devices, as long as it enables the first and second heating devices to clamp the composite insulator and maintain stable adhesive bonding pressure.

[0060] In this embodiment, the locking block 1215 is fixedly connected to the pressure head 1212, the pressure head 1212 is fixedly connected to the pressure plate 1214, and the pressure plate 1214 is fixedly connected to the first heating device 130 by bolts. In other embodiments, the locking block is fixed to the pressure head, the pressure head is fixed to the pressure plate, and the pressure plate is fixed to the first heating device by means of clamping, welding, etc. Alternatively, the locking block may not be provided, and the connecting block may be directly fixedly connected to the pressure head. As long as the respective functions can be achieved, no specific limitation is made here. In other embodiments, the components of the pressure device may also be other structures, such as triangular prisms, pentagonal prisms, etc., as long as they can cooperate with each other to achieve the function of the pressure device. No specific limitation is made here.

[0061] See Figure 1 , Figure 11 and Figure 12The second heating device 140 includes a second pressure plate 141, which is a frame structure. The second pressure plate 141 includes a lower end 1411, two side portions 1412, and a U-shaped portion 1413. The lower end 1411 is a rectangular frame plate, which is fixedly connected to the main frame 110 along the second direction F2, thus fixing the distance between the second heating device 140 and the first fixing plate 112, and between the second heating device 140 and the second fixing plate 113. The two side portions 1412 are respectively disposed at both ends of the lower end 1411 along the second direction F2, and the side portions 1412 extend vertically. Both side portions 1412 are rectangular frame plates. The U-shaped portion 1413 is a plate with a U-shaped opening structure, and the lower end 1411 and the two side portions 1412 are fixedly connected to the outside of the U-shaped portion, so that the U-shaped opening is arranged upward to accommodate the heating body and flange 23 of the second heating device 140.

[0062] The heating body of the second heating device 140 includes a second heat insulation plate 142, a second heating plate 143, and a second transition plate 144, which are fixedly connected in sequence. The second heat insulation plate 142, the second heating plate 143, and the second transition plate 144 are all U-shaped open plates. The second pressure plate 141 also has a U-shaped open structure, and the U-shaped opening dimensions of the second heat insulation plate 142 and the second pressure plate 141 are the same. The second heat insulation plate 142 is fixedly disposed on the surface of the second pressure plate 141 near the first heating device 130. The second transition plate 144 is positioned facing the first support device 160 to directly contact the insulator 22 of the composite transformer bushing 20 for heating. The specific structures and functions of the second heat insulation plate 142, the second heating plate 143, and the second transition plate 144 are similar to those of the first heat insulation plate 132, the first heating plate 133, and the first transition plate 134, and will not be described in detail here.

[0063] The U-shaped opening size of the second heating plate 143 is the same as and smaller than the U-shaped opening size of the second transition plate 144. The dimensions of the second heating plate 143 and the second transition plate 144 match the outer diameter of the second end 232 of the flange 23 for fixing the flange 23. Specifically, the flange plate 23 is fixedly connected to the second transition plate 144, and the second end 232 of the flange 23 is fitted into the U-shaped opening and faces the third heating device 150 for adhesive fixing to the oil-insulating tube 24. The first end 231 of the flange 23 faces the first heating device 130 for adhesive fixing to the insulator 22.

[0064] A rotary clamping cylinder 145 is also fixed on the second pressure plate 141. The rotary clamping cylinder 145 is used to clamp the heating body of the second heating device 140, and is similar to the aforementioned rotary clamping cylinder 137, so it will not be described again. Simultaneously, the second pressure plate 141 is also provided with a second adhesive receiving groove 146. The second adhesive receiving groove 146 is fixed on the U-shaped portion 1413 and located below the second heating plate 143, extending along the first direction F1 to the outside of the second heating plate 143. This allows the second adhesive receiving groove 146 to receive adhesive overflowing from the flange 23, and its structure and function are consistent with the aforementioned first adhesive receiving groove 139, so it will not be described again. Furthermore, the second pressure plate 141 is further provided with a second temperature measuring device 147. The second temperature measuring device 147 is mounted on the second pressure plate 141 and is used to monitor the surface temperature of the flange 23, and its structure and function are consistent with the aforementioned first temperature measuring device 138, so it will not be described again.

[0065] See Figure 1 , Figure 2 and Figure 11 The third heating device 150 includes a third pressure plate 151, a third heat insulation plate 152, a third heating plate 153, and a third transition plate 154, which are fixedly connected in sequence. The third transition plate 154 is positioned facing the second heating device 140 so as to directly contact the flange 23 of the composite transformer bushing 20 for heating. The third heat insulation plate 152, the third heating plate 153, and the third transition plate 154 are all rectangular plates with the same length and width, and are fixedly connected in sequence to form the heating body. The third heating device 150 also includes a third mounting plate 155, which is fixedly connected to the surface of the third pressure plate 151 near the second heating device 140. Specifically, it is the same as the first mounting plate 135 mentioned above, and will not be described again.

[0066] Several equal-height columns 156 are provided between the third mounting plate 155 and the heating body. The two ends of each equal-height column 156 are connected to the heating body and the third mounting plate 155 respectively, and are arranged along the first direction F1. The equal-height columns 156 are spaced apart along the second direction F2, allowing the heating body of the third heating device 150 to extend along the first direction F1 to the outside of the third pressure plate 151. This is used to adjust the distance between the third heating device 150 and the second heating device 140. By setting equal-height columns 156 of different lengths, it can accommodate oil-insulated tubes 24 of various lengths. A third connecting plate 157 is connected to the heating body for fixed connection with the equal-height columns 156, preventing the equal-height columns 156 from directly contacting the third heat insulation plate 152.

[0067] In other embodiments, the third heating device may also be configured to have the same structure as the first heating device 130; or, the first heating device may also be configured to have the same structure as the third heating device 150, that is, the first heating device further includes a leveling column, a fourth connecting plate is fixedly connected to the side of the first heat insulation plate away from the first heating plate, and the leveling column is fixedly connected between the first pressure plate and the fourth connecting plate. It can be adjusted in various ways to accommodate insulators of different length specifications, which is not limited here.

[0068] Since the second heating device 140 is fixedly connected to the main frame 110, and the position between the second heating device 140 and the second fixing plate 113 is relatively fixed, and the length of the oil insulating tube 24 varies for composite transformer bushings 20 of different lengths, an extension device can also be added between the third heating device 150 and the second fixing plate 113 to further adjust the distance between the third heating device 150 and the second heating device 140, thus making it suitable for composite transformer bushings of various lengths. One or more extension devices can be provided, as described above, and will not be repeated here.

[0069] Continue reading Figure 2 A second pressure device 122 is also provided between the extension device and the second fixing plate 113. The structure and setting position of the second pressure device 122 are similar to those of the first pressure device 121, and will not be described in detail here. The second pressure device 122 is used to apply pressure to the entire third heating device 150, and then apply adhesive pressure to the end base 25 clamped on the third heating device 150, so that the end base 25 and the oil insulating tube 24 are in close contact, thereby ensuring that the fitting position of the end base 25 when it is sleeved on the outer periphery of the oil insulating tube 24 meets the design requirements of the composite transformer bushing 20 and ensures the adhesive quality.

[0070] See Figure 1 and Figure 14 A first support device 160 is disposed between the first heating device 130 and the second heating device 140 to support the insulator 22, so that both ends of the insulator 22 are respectively fitted and fixed to the oil tank 21 and the flange 23. The first support device 160 includes a first bracket 161, a first movable support 162, a second movable support 163, and a first support part 164. The first bracket 161 is slidably connected to the main frame 110. Specifically, the first bracket 161 is slidably connected to two second guide rails 116 through a slider, so that the first support device 160 is movably disposed on the main frame 110 along the first direction F1, and the first support device 160 moves back and forth between the first heating device 130 and the second heating device 140.

[0071] A first movable support 162 is movably mounted on a first bracket 161 along a second direction F2, and a second movable support 163 is movably mounted on a first movable support 162 along a vertical direction. A vertically mounted first guide frame 167 is fixedly connected to the first movable support 162, and the second movable support 163 is slidably connected to the first guide frame 167, allowing the second movable support 163 to move back and forth along a vertical direction. Specifically, the first support device 160 also includes a first handwheel 165 and a second handwheel 166. Rotating the first handwheel 165 controls the movement of the first movable support 162 along the second direction F2, and rotating the second handwheel 166 controls the up-and-down movement of the second movable support 163 along a vertical direction. The insulator 22 is moved along the second direction F2 and the vertical direction by the first moving bracket 162 and the second moving bracket 163. This facilitates the adjustment of the concentricity between the insulator 22 placed on the first support device 160 and the oil tank 21 fixed on the first heating device 130, ensuring smooth subsequent gluing. It also facilitates the hoisting of the composite transformer bushing 20. By adjusting the distance between the composite transformer bushing 20 and the various components of the gluing machine 100, collisions and damage to the composite transformer bushing 20 during hoisting and transportation are avoided. Since the first support device 160 mainly supports the insulator 22, its movement along the first direction F1 can be roughly adjusted manually, i.e., manually pushing the first support device 160 to slide along the two second guide rails 116, as long as it can stably support the composite transformer bushing 20. In other embodiments, servo motors can also be used to control the movement of the first moving bracket along the second direction, the second moving bracket along the vertical direction, and the first support device along the first direction, achieving automated operation and precise control of the movement distance.

[0072] The first support portion 164 is located on the second movable bracket 163. The first support portion 164 is a V-shaped plate. Since the insulator 22 is usually a cylindrical structure, the V-shaped opening of the first support portion 164 allows the insulator 22 to be held in place when placed on the first support portion 164, preventing it from rolling and slipping off. Since the first support portion 164 is in direct contact with the insulator 22, to avoid damaging the silicone rubber skirts on the surface of the insulator 22, the contact area between the first support portion 164 and the composite transformer bushing 20 is made of nylon. Nylon has high mechanical strength, good toughness, a smooth surface, and a low coefficient of friction, and will not damage the surface of the composite transformer bushing 20. In other embodiments, the contact area between the first support portion and the composite transformer bushing can be made of other materials, as long as its surface is smooth and will not damage the surface of the composite transformer bushing.

[0073] In this embodiment, there are two first support devices 160, which are spaced apart along the first direction F1 on the main frame 110. This provides more stable support for the composite transformer bushing 20 and avoids instability caused by a single first support device 160 not being in the exact center of the composite transformer bushing 20, which could lead to tilting or falling. In other embodiments, the number of first support devices is not limited, as long as they can support the composite transformer bushing and keep it balanced.

[0074] See Figure 1 and Figure 15 A second support device 170 is disposed between the second heating device 140 and the third heating device 150 to support the oil-insulating tube 24, so that both ends of the oil-insulating tube 24 are respectively fitted and fixed to the flange 23 and the end base 25. The second support device 170 includes a second bracket 171, a third movable support 172, a fourth movable support 173, a second support part 174, and a second guide frame 177. The second bracket 171 is slidably connected to the main frame 110. Specifically, the second bracket 171 is slidably connected to two second guide rails 116 through a slider, so that the second support device 170 is movably disposed on the main frame 110 along the first direction F1, and the second support device 170 moves back and forth between the second heating device 140 and the third heating device 150. The second bracket 171 has the same structure and connection method as the aforementioned first bracket 161, the third movable support 172 has the same structure as the aforementioned first movable support 162, the fourth movable support 173 has the same structure as the aforementioned second movable support 163, and the second guide 177 has the same structure as the aforementioned first guide 167. That is, the third movable support 172 is movably mounted on the second bracket 171 along the second direction F2, and the fourth movable support 173 is movably mounted on the third movable support 172 along the vertical direction. Further details will not be elaborated here. Meanwhile, the second support device 170 also includes a handwheel to control the movement of the third movable support 172 along the second direction F2 and the fourth movable support 173 along the vertical direction. Further details will also not be elaborated here.

[0075] The second support portion 174 is movably mounted on the fourth movable bracket 173. The second support portion 174 has a clamping structure and includes two opposing clamping portions 1741. The clamping portions 1741 have a V-shaped opening structure. Since the oil-insulating tube 24 is usually a cylindrical structure, the V-shaped openings of the two clamping portions 1741 are aligned and clamp the outer periphery of the oil-insulating tube 24, effectively clamping it tightly and preventing it from rolling and slipping. The two clamping portions 1741 are movably mounted on the top of the fourth movable bracket 173. The second support portion 174 is provided with an automatic clamping structure 1742, allowing the two clamping portions 1741 to move back and forth along the second direction F2. When it is necessary to clamp the oil-insulating tube 24, operate the automatic clamping structure 1742 to move the two clamping parts 1741 away from each other, then place the oil-insulating tube 24. After the oil-insulating tube 24 is stable, operate the automatic clamping structure 1742 again to move the two clamping parts 1741 closer to each other, and clamp the oil-insulating tube 24 in the center.

[0076] In this embodiment, the contact area between the second support portion 174 and the oil-insulating tube 24 is made of nylon. Nylon has high mechanical strength, good toughness, a smooth surface, and a low coefficient of friction, so it will not damage the surface of the composite transformer bushing 20. In other embodiments, the contact area between the second support portion and the composite transformer bushing can be made of other materials, as long as its surface is smooth and will not damage the surface of the composite transformer bushing.

[0077] In other embodiments, the second support device may also be configured to have the same structure as the first support device 160, and this is not a limitation.

[0078] The working process of the binding machine 100 is as follows: The oil tank 21 is fixed to the first heating device 130, the flange 23 is fixed to the second heating device 140, and the end base 25 is fixed to the third heating device 150. The insulator 22 is horizontally placed on the first support device 160, and the oil-insulating tube 24 is horizontally placed on the second support device 170. The insulator 22 is moved by the first moving bracket 162 and the second moving bracket 163 to make the oil tank 21, insulator 22, and flange 23 coaxial. The oil-insulating tube 24 is moved by the third moving bracket 172 and the fourth moving bracket 173 to make the oil-insulating tube 24 and the end base 25 coaxial with the flange 23. That is, all components of the composite transformer bushing 20 are coaxial. Simultaneously, the first heating device 130 is driven by the first pressure device 121. The first heating device 130 moves along the length of the main frame 110, and the second pressure device 122 drives the third heating device 150 to move along the length of the main frame 110 until both ends of the insulator 22 are respectively fitted into the oil tank 21 and the flange 23 and clamped, and both ends of the oil insulating tube 24 are respectively fitted into the flange 23 and the end base 25 and clamped, so as to realize the matching installation of the oil tank 21, the flange 23 and the insulator 22, the matching installation of the flange 23, the end base 25 and the oil insulating tube 24, and the maintenance of the required adhesive pressure. By injecting glue into the glue injection holes of the oil tank 21, the flange 23 and the end base 25 respectively, the first heating device 130, the second heating device 140 and the third heating device 150 heat to the required adhesive temperature, so that the glue cures and the composite transformer bushing 20 is glued.

[0079] The beneficial effects of this application are as follows: Unlike the prior art, the binding machine of this application includes a main frame, a first heating device, a second heating device, a third heating device, a first support device, a second support device, and a pressure device. It can simultaneously bind various components of composite transformer bushings, realizing the horizontal binding process of composite transformer bushings, that is, binding of four parts at one time. Furthermore, by setting up the pressure device, the binding pressure is kept stable, avoiding the phenomenon of uneven pressure. Moreover, dynamic pressure is applied throughout the binding process, which can prevent flatness errors caused by heat deformation of the heating plate during the binding process, effectively improving the product qualification rate. It is also easy to operate and has high production efficiency.

[0080] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A binding machine for binding composite transformer bushings, the composite transformer bushing comprising an oil conservator, an insulator, a flange, an oil-insulating tube, and an end base connected in sequence, characterized in that, The binding machine includes an electric cylinder device, a main frame, a heating device, a support device, and a pressure device. The electric cylinder device is located outside the main frame and is used to provide power to the binding machine. The heating device includes a first heating device, a second heating device, and a third heating device that are sequentially spaced apart along a first direction on the main frame. The support device includes a first support device and a second support device that are movably spaced apart along the main frame along a first direction. The first support device is located between the first heating device and the second heating device and is used to support the insulator. The second support device is located between the second heating device and the third heating device and is used to support the oil-insulating tube. The pressure device is used to apply pressure to the first heating device and the third heating device.

2. The perfect binding machine as described in claim 1, characterized in that, The oil storage tank is mounted on the first heating device, the flange is mounted on the second heating device, and the end base is mounted on the third heating device. The pressure device includes a first pressure device and a second pressure device. The first pressure device drives the first heating device, and the second pressure device drives the third heating device, so that the oil storage tank is glued to the first end of the insulator, the second end of the insulator is glued to the first end of the flange, the second end of the flange is glued to the first end of the oil-insulating tube, and the second end of the oil-insulating tube is glued to the end base.

3. The perfect binding machine as described in claim 1, characterized in that, The main frame includes a main base, a first fixing plate, a second fixing plate, and a plurality of first guide rods. The main base is arranged along the first direction, and the first fixing plate and the second fixing plate are arranged at both ends of the main base along the first direction. The plurality of first guide rods are fixedly connected between the first fixing plate and the second fixing plate, and the plurality of first guide rods are arranged along the first direction. The plurality of first guide rods pass through the first heating device, the second heating device, and the third heating device in sequence. The first guide rods are used to guide the first heating device and the third heating device to move along the first direction.

4. The perfect binding machine as described in claim 3, characterized in that, The first heating device includes a first pressure plate, which is movably connected to the main frame. A first heat insulation plate, a first heating plate, and a first transition plate are sequentially fixedly connected to the side of the first pressure plate near the second heating device. The first transition plate is disposed facing the first support device, and the oil tank is fixedly connected to the first transition plate.

5. The perfect binding machine as described in claim 4, characterized in that, The first heating device further includes a first adhesive receiving groove, which is fixed to the first pressure plate and located below the first heating plate and extends along the first direction to the outside of the first heating plate.

6. The perfect binding machine as described in claim 4, characterized in that, An extension device is provided on the side of the first heating device away from the first support device. The extension device includes a first connecting plate, a second connecting plate, and a plurality of extension members. The first connecting plate is disposed close to the first pressure plate, and the extension members are adjustablely engaged between the first connecting plate and the second connecting plate.

7. The perfect binding machine as described in claim 1, characterized in that, The second heating device includes a second pressure plate with a U-shaped opening structure. A second heat insulation plate, a second heating plate, and a second transition plate with a U-shaped opening structure are sequentially fixedly connected to the side of the second pressure plate near the first heating device. The second transition plate is arranged facing the first support device, and the flange is fixedly connected to the second transition plate.

8. The perfect binding machine as described in claim 1, characterized in that, The first support device includes a first bracket, a first movable bracket, a second movable bracket, and a first support portion. The first bracket is slidably connected to the main frame. The first movable bracket is movably disposed on the first bracket along a second direction. The second movable bracket is movably disposed on the first movable bracket along a vertical direction. The first support portion is located on the second movable bracket. The second direction is perpendicular to the first direction and the second direction and the first direction are located in the same horizontal plane.

9. The perfect binding machine as described in claim 1, characterized in that, The second support device includes a second bracket, a third movable bracket, a fourth movable bracket, and a second support portion. The second bracket is slidably connected to the main frame. The third movable bracket is movably disposed on the second bracket along a second direction. The fourth movable bracket is movably disposed on the third movable bracket along a vertical direction. The second direction is perpendicular to the first direction and the second direction and the first direction are located in the same horizontal plane. The second support portion is movably disposed on the fourth movable bracket.

10. The perfect binding machine as described in claim 1, characterized in that, The pressure device includes a drive rod, a pressure head, a pressure sensor, and a pressure plate. The drive rod drives the pressure head to move the first heating device or the third heating device along the first direction. The pressure sensor is disposed between the pressure head and the pressure plate. The pressure device is connected to the first heating device or the third heating device through the pressure plate.

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