Welding device for processing armored heating cable

Abstract

The application discloses a welding device for armored heating cable processing, which comprises a furnace body configured to have a furnace cavity for heating elements; a loading plate arranged in the furnace body for placing the elements; a plurality of material placing racks uniformly arranged on the loading plate for positioning the elements; the loading plate is rotationally connected in the furnace body, and the material placing racks are rotationally connected on the loading plate; when the loading plate rotates around a pivot central axis, the material placing racks rotate relative to the loading plate; a partition plate is arranged in the furnace body to separate the furnace cavity into a first cavity and a second cavity, and an air inlet is arranged on the furnace body to introduce airflow into the second cavity to form airflow flowing in a specified direction to drive the loading plate to rotate; the application can make the elements evenly heated to improve the welding effect of the elements.

Description

Technical Field

[0001] This invention belongs to the field of armored thermocouple processing technology, and in particular relates to a welding device for processing armored heating cables. Background Technology

[0002] Armored heating cables (often referring to mineral-insulated heating cables) are composed of a metal protective tube, inorganic insulation (such as magnesium oxide, aluminum oxide, etc.), and heating wire, all compressed using a mold. They possess advantages such as pressure resistance, shock resistance, flexibility, energy saving, high impermeability, radiation resistance, explosion-proof, safety and reliability, convenient installation, high mechanical strength, and long service life. They can be widely used in aerospace, nuclear energy, petroleum, chemical, construction, machinery, and power energy industries, as well as in scientific research and teaching fields. Their structure mainly consists of a metal sheath, insulation layer, and armored heating element, allowing for easy connection to a power source.

[0003] Armored heating cables contain multiple components, including ceramic and metal components that need to be welded together. The ceramic components are cylindrical hollow structures, through which the metal components are inserted. In related technologies, after the components are pre-treated, the joined components are placed in a heat treatment furnace for heating to complete the welding. To improve processing efficiency, multiple components are placed in the heat treatment furnace at a time. The opposing surfaces of the components are blocked by adjacent components, resulting in uneven heating of the side walls of the components, which affects the welding effect. Summary of the Invention

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a welding device for processing armored heating cables.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a welding device for processing armored heating cables, comprising: a furnace body configured to have a furnace cavity for heating elements; a material carrier plate disposed in the furnace body for placing elements; a plurality of material racks evenly disposed on the material carrier plate for positioning elements; the material carrier plate is rotatably connected to the furnace body, and the material racks are rotatably connected to the material carrier plate; when the material carrier plate rotates about a pivot axis, the material racks rotate relative to the material carrier plate; the furnace body is provided with a partition that divides the furnace cavity into a first cavity and a second cavity, and the furnace body is provided with an air inlet for introducing airflow into the second cavity to form an airflow flowing in a specified direction to drive the material carrier plate to rotate.

[0007] Furthermore, the side wall of the furnace body in the first cavity is constructed as a cylindrical structure, and the side wall of the furnace body in the second cavity is constructed as a conical structure. The cylindrical furnace body and the conical furnace body are coaxially arranged.

[0008] Furthermore, the pivot axis coincides with the central axis of the cylindrical furnace body.

[0009] Furthermore, the welding device for processing armored heating cables also includes: an air inlet pipe, which is located on the side wall of the furnace body and communicates with the air inlet; the central axis of the air inlet pipe is perpendicular to the pivot axis.

[0010] Furthermore, the air inlet pipe is tangentially positioned to the cylindrical furnace body.

[0011] Furthermore, the material carrier plate is provided with a guide ring, and the partition plate is provided with a first movable groove. Both the guide ring and the guide groove are arranged around the pivot axis, and the guide ring is at least partially embedded in the first movable groove.

[0012] Furthermore, the welding device for processing armored heating cables also includes: a drive shaft located at the bottom of the material carrier plate; several drive rings connected to the drive shaft to prevent rotation; and a first through hole provided on the partition plate for connecting the first cavity and the second cavity, with the drive shaft passing through the first through hole.

[0013] Furthermore, the welding device for processing armored heating cables also includes: a heating element for heating the airflow entering the second cavity; and a second through hole provided on the partition, the second through hole being inclined.

[0014] Furthermore, a wind deflector is provided at the bottom of the partition, and a second through hole is provided inside the wind deflector; the projection of the wind deflector on the plane where the pivot axis is located partially overlaps with the projection of the transmission ring on the plane where the pivot axis is located.

[0015] The advantage of this invention is that it provides a welding apparatus for processing armored heating cables, which enables components to be heated evenly, thereby improving the welding effect of the components. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram:

[0019] Figure 1This is a schematic diagram of the welding apparatus for processing armored heating cables according to one embodiment of the present invention.

[0020] Figure 2 for Figure 1 A schematic diagram of the material carrier plate in the welding device for processing armored heating cables in the illustrated embodiment.

[0021] Figure 3 for Figure 1 A schematic diagram of the material rack in the welding device for processing armored heating cables in the illustrated embodiment.

[0022] Figure 4 for Figure 1 A schematic diagram of the third through hole in the welding device for processing armored heating cables in the illustrated embodiment.

[0023] Figure 5 for Figure 1 A schematic diagram of the heating block in the welding device for processing armored heating cables in the illustrated embodiment.

[0024] Figure 6 for Figure 1 A schematic diagram of the support column in the welding device for processing armored heating cables in the illustrated embodiment.

[0025] Figure 7 for Figure 1 A schematic diagram of the guide ring in the welding device for processing armored heating cables in the illustrated embodiment.

[0026] Figure 8 for Figure 1 A schematic diagram of the first transmission ring in the welding device for processing armored heating cables in the illustrated embodiment.

[0027] Figure 9 This is a schematic diagram of a heating block in a welding apparatus for processing armored heating cables according to another embodiment of the present invention.

[0028] The meanings of the reference numerals in the figure are as follows:

[0029] 100. Welding device for processing armored heating cables; 101. Furnace body; 102. Cover plate; 103. Air inlet pipe; 104. Locking buckle; 105. Air outlet pipe; 106. Material carrier plate; 1061. Drive shaft; 107. Partition plate; 108. First drive ring; 1081. First ring body; 1082. Second ring body; 1083. Fan blade; 1084. Anti-rotation block; 109. Second drive ring; 110. Washer; 112. Support shaft column; 1121. Support plate; 1122, support ring; 1122a, first mounting groove; 113, connecting frame; 1131, second connecting block; 1132, guide frame; 1133, connecting shaft; 1134, first bearing; 1135, second protrusion; 114, third transmission ring; 115, end cap; 116, heat insulation layer; 117, sealing plate; 118, sealing block; 1181, first sealing ring; 119, second bearing; 120, sleeve; 121, heating block;

[0030] 200. Components;

[0031] 301. Heating block. Detailed Implementation

[0032] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0033] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0034] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0035] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0036] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0037] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] like Figures 1 to 2 The welding apparatus 100 for processing armored heating cables shown includes a furnace body 101, a material carrier plate 106, a material rack, and a cover plate 102.

[0039] The furnace body 101 is configured to have a furnace cavity for the heating element 200. A cover plate 102 covers the furnace body 101 to seal the furnace cavity, forming a sealed chamber and reducing heat loss within the furnace cavity. A partition plate 107 is provided inside the furnace body 101, dividing the furnace cavity into a first cavity and a second cavity. The first cavity is located above the second cavity. The sidewalls of the first cavity are cylindrical, and the sidewalls of the second cavity are conical. That is, the top of the furnace body 101 is cylindrical, and the bottom is conical, with the top and bottom of the furnace body 101 coaxially aligned. A material carrier plate 106 is rotatably mounted on the furnace body 101. Specifically, the material carrier plate 106 is located in the first cavity, and the central axis of the cylindrical furnace body 101 is defined as the pivot axis. The material carrier plate 106 can rotate around the pivot axis. In order to make full use of the space in the furnace cavity, the material carrier plate 106 is preferably a disc-shaped structure, while ensuring that the components 200 placed on it can be heated evenly when the material carrier plate 106 rotates. The material carrier plate 106 is provided with a plurality of first connecting blocks, which are evenly arranged in a circle on the material carrier plate 106. The material rack is rotatably connected to the first connecting blocks and serves to support the components 200.

[0040] like Figure 3 As shown, specifically, the material rack includes a support column, a support plate 1121, and a support ring 1122. The bottom of the support column is provided with a connecting groove, and a first connecting block is inserted into the connecting groove. A first protruding ring is provided on the inner wall of the connecting groove, and a second protruding ring is provided on the side wall of the first connecting block. The first protruding ring is below the second protruding ring. With the cooperation of the first and second protruding rings, the support column cannot be removed from the first connecting block, and at the same time, the support column and the first connecting block are rotatably connected. A third bearing is provided on the first connecting block to reduce the friction between the support column and the first connecting block. The support plate 1121 is located at the top of the support column, and the support ring 1122 is located at the bottom of the support column. The support ring 1122 is provided with multiple connecting parts, and the support ring 1122 is fixed to the support column through the connecting parts. More specifically, the connecting part is a first protrusion on the inner wall of the support ring 1122, and a gap is left between adjacent connecting parts. The support plate 1121 is provided with a material loading groove, and the component is placed in the material loading groove to fix the component 200 on the support plate 1121.

[0041] A gap is provided between adjacent connection parts so that heat can enter the component 200 through the gap, making the heating of the component 200 more uniform inside and out, and ensuring the welding quality of the component 200.

[0042] The furnace body 101 is provided with an air inlet for introducing airflow into the second cavity and an air inlet pipe 103 communicating with the air inlet. The air inlet pipe 103 has a circular pipe structure, and the central axis of the air inlet pipe 103 is perpendicular to the pivot central axis. The air inlet pipe 103 is tangential to the cylindrical furnace body 101. The side wall of the second cavity is preferably a conical structure.

[0043] The airflow from the induced draft mechanism is delivered into the air inlet pipe 103. The airflow enters the furnace cavity through the air inlet. Since the air inlet pipe 103 is tangent to the side wall of the furnace body 101, the airflow entering the furnace body 101 flows along the inner wall of the furnace body 101. Under the conical structure at the bottom of the furnace body 101, the airflow generates a rotating airflow in one direction in the second cavity. The airflow pushes the material carrier plate 106 to rotate. The material carrier plate 106 rotates around the pivot axis. When the material carrier plate 106 drives the material rack to rotate together, the material rack rotates relative to the material carrier plate 106, so that the opposite faces of two adjacent components 200 placed on the material carrier plate 106 are continuously offset, so that the entire side of the component 200 is heated evenly. At the same time, the component 200 moves throughout the furnace cavity, avoiding abnormal temperature in a certain part of the furnace cavity from affecting the finished product quality of the component 200, and further ensuring the uniformity of heating of the component 200 in the furnace cavity.

[0044] It is worth noting that the induced draft fan is a conventional fan or air pump that only provides air intake for the intake pipe.

[0045] More specifically, the material rack also includes a guide frame 1132, which is a circular structure. Multiple second protrusions 1135 are provided on the side wall of the guide frame 1132. A connecting shaft 1133 is provided on each second protrusion 1135, and a first bearing 1134 is sleeved on the connecting shaft 1133. The multiple second protrusions 1135 are evenly distributed circumferentially on the guide frame 1132. The first bearing 1134 is a ceramic bearing to adapt to its high-temperature working environment. A connecting frame 113 is provided on the guide frame 1132, and the connecting frame 113 is connected to the guide frame 1132 via a second connecting block 1131. A first mounting groove 1122a corresponding to the connecting frame 113 is provided on the support ring 1122, and a positioning groove corresponding to the second connecting block 1131 is provided at the bottom of the first mounting groove 1122a.

[0046] When installing the guide frame 1132, the connecting frame 113 is placed into the first mounting groove 1122a, and the second connecting block 1131 is aligned with the positioning groove. The second connecting block 1131 is inserted into the positioning groove to form a cooperation with the positioning groove, so that the guide frame 1132 and the support ring 1122 form an anti-rotation cooperation. At the same time, by embedding the second connecting block 1131 into the positioning groove, the contact area between the support ring 1122 and the connecting frame 113 is increased, the connection effect between the connecting frame 113 and the support ring 1122 is increased, and the connecting frame 113 will not come off the support ring.

[0047] The furnace cavity is provided with a third transmission ring 114, the inner wall of the third transmission ring 114 is provided with multiple protruding teeth, the third transmission ring 114 is made of high temperature resistant ceramic, the side wall of the third transmission ring 114 is provided with multiple positioning grooves, and the inner wall of the furnace cavity is provided with multiple positioning strips corresponding to the positioning grooves. The third transmission ring 114 is made of ceramic.

[0048] After opening the cover plate 102, align the positioning groove with the positioning strip, and install the third transmission ring 114 into the furnace cavity. The positioning groove and the positioning strip work together to fix the third transmission ring 114, preventing the third transmission ring 114 from rotating with the material plate 106 when the material plate 106 rotates.

[0049] When the material carrier plate 106 drives the material rack to rotate, the first bearing 1134 on the material rack contacts the protruding teeth on the third transmission ring 114. Under the cooperation of the protruding teeth and the first bearing 1134, the material rack rotates. The material rack rotates relative to the material carrier plate 106, causing the component 200 to rotate on its own axis while revolving around the center of the furnace. This changes the relative position of the component 200 and the furnace body 101, as well as the relative position of the components 200 with each other, so that the entire component 200 is subjected to uniform heating treatment, effectively improving the welding effect of the component 200.

[0050] By designing the first bearing 1134, the collision force between the guide frame 1132 and the third transmission ring 114 is reduced, allowing the guide frame 1132 to make smoother contact with the convex teeth for rotation, reducing the wear of the convex teeth and the guide frame 1132, and reducing the maintenance cost of the furnace body 101.

[0051] The bottom of the carrier plate 106 is provided with a drive shaft 1061, and multiple drive rings are provided on the drive shaft 1061. Taking a drive shaft 1061 with two drive rings as an example, for ease of description, the two drive rings are named the first drive ring 108 and the second drive ring 109, respectively. The first drive ring 108 is located above the second drive ring 109. Figure 8As shown, the first transmission ring 108 includes a first ring body 1081, a second ring body 1082, and a plurality of first connecting rods. The diameter of the first ring body 1081 is smaller than that of the second ring body 1082. The first ring body 1081 and the second ring body 1082 are connected by the first connecting rods. A gap is provided between adjacent first connecting rods to allow airflow to pass normally. The transmission shaft 1061 is provided with a second mounting groove that mates with the first ring body 1081. An anti-rotation groove is provided on the inner wall of the second mounting groove. The first transmission ring 108 and the transmission shaft 1061 are connected by an anti-rotation block 1084, which is used in conjunction with the anti-rotation groove to achieve the anti-rotation connection between the first transmission ring 108 and the transmission shaft 1061. The second ring body 1082 is provided with multiple fan blades 1083. The structure of the second transmission ring 109 is the same as that of the first transmission ring 108. Since the bottom of the furnace body 101 is a conical structure, the diameter of the second transmission ring 109 is smaller than that of the first transmission ring 108, so that the second transmission ring 109 can rotate normally inside the furnace body 101.

[0052] When installing the first transmission ring 108 and the second transmission ring 109, firstly, the first transmission ring 108 is fitted onto the transmission shaft 1061, and the anti-rotation block 1084 is embedded in the anti-rotation groove. After the first transmission ring 108 is pushed into one end of the second mounting groove, a washer 110 is fitted into the second mounting groove. Then, the second transmission ring 109 is fitted onto the transmission shaft 1061, using the washer 110 to separate the first transmission ring 108 and the second transmission ring 109, preventing them from interfering with each other. The installation method of the second transmission ring 109 is the same as that of the first transmission ring 109. The installation method of the moving ring 108 is the same. After the second transmission ring 109 is installed, the sleeve 120 is put on the transmission shaft 1061. The sleeve 120 is inserted into the second mounting groove, and one end of the sleeve 120 abuts against the second transmission ring 109. The sleeve 120 is snapped onto the transmission shaft 1061, and the second mounting groove is closed by the sleeve 120, which provides support for the first transmission ring 108 and the second transmission ring 109, and completes the fixation of the first transmission ring 108 and the second transmission ring 109, preventing the first transmission ring 108 and the second transmission ring 109 from falling off the transmission shaft 1061.

[0053] The first transmission ring 108 is located on one side of the air inlet, and the air entering the furnace cavity from the air inlet blows directly onto the first transmission ring 108. The partition plate 107 is provided with a first through hole, and the transmission shaft 1061 passes through the first through hole into the second cavity. The bottom of the partition plate 107 is provided with a positioning plate, the diameter of which corresponds to the first through hole. The positioning plate passes through the first through hole, and the transmission shaft 1061 is located at the bottom of the positioning plate. The positioning plate is provided with a second through hole, the top of which is inclined towards the side wall of the furnace cavity. The bottom of the positioning plate is provided with a wind baffle, which is a cylindrical structure. The second through hole is located inside the wind baffle. The projection of the wind baffle on the plane of the pivot axis overlaps with the projection of the transmission ring on the plane of the pivot axis, that is, the cross section of the bottom of the wind baffle coincides with the cross section of the fan blade 1083.

[0054] like Figure 5 As shown, multiple heating blocks 121 are provided on the inner wall of the air inlet pipe 103. The multiple heating blocks 121 are connected together by a second connecting rod, and one of the heating blocks 121 is fixed to the air inlet pipe by a screw.

[0055] After the air intake mechanism introduces the airflow into the intake pipe, the airflow comes into contact with the heating block 121 to heat the airflow. The airflow entering the chamber through the intake pipe blows directly onto the fan blades 1083 of the first drive ring 108, causing the first drive ring 108 to rotate. At the same time, the airflow entering the second chamber flows along the inner wall of the lower chamber, automatically forming a directional vortex-like airflow in the second chamber. After the airflow reaches the second drive ring 109, it pushes the second drive ring 109 to rotate, so that the first drive ring 108 and the second drive ring 109 together provide rotational power for the drive shaft 1061, causing the material plate 106 to rotate in the furnace chamber and adjust the position of the component 200; at the baffle With the hood in place, the airflow entering the second cavity cannot flow directly towards the second through hole, forcing the airflow to flow along the inner wall of the second cavity, providing power for the rotation of the carrier plate 106. After the air pressure in the second cavity increases, the airflow in the second cavity automatically flows towards the second through hole. At this time, the hood acts as a wind gatherer, causing more airflow to flow out from the second through hole. The airflow flows towards the side wall of the furnace cavity through the second through hole, allowing the hot airflow to blow directly onto the side wall of the component 200, heating the component 200. The inclined setting of the second through hole allows the airflow to be more evenly distributed in the furnace cavity, thereby ensuring uniform temperature throughout the furnace cavity and improving the welding effect on the component 200.

[0056] like Figure 4 , 6As shown in Figure 7, the bottom of the second cavity is provided with a third through hole, and the bottom of the third through hole is provided with a sealing block 118. The sealing block 118 is partially inserted into the third through hole to seal it. A second bearing 119 is also provided in the third through hole, and the second bearing 119 is located at the top of the sealing block 118. A third mounting groove is provided on the inner wall of the third through hole, and the third mounting groove has a stepped structure. An end cap 115, a heat insulation layer 116, and a sealing plate 117 are provided in the third mounting groove. The heat insulation layer 116 is located between the end cap 115 and the sealing plate 117. The heat insulation layer 116 is in the form of filler. The end cap 115 and the sealing plate 117 hold the heat insulation layer 116 in it to prevent the heat insulation layer 116 from leaking. A first annular groove is provided on the sealing block 118, and a first sealing ring 1181 is provided in the first annular groove. The sealing block 118 contacts the second bearing 119 through the first sealing ring 1181 to ensure the seal between the sealing block 118 and the second bearing 119.

[0057] When the material carrier plate 106 is installed into the furnace cavity, the drive shaft 1061 is directly inserted into the second cavity, with the bottom of the drive shaft 1061 inserted into the third through hole. The sleeve 120 rests against the second bearing 119, which provides support for the sleeve 120, preventing it from losing its fixing function to the first drive ring 108 and the second drive ring 109 during thermal expansion and contraction. At the same time, the second bearing 119 reduces the resistance encountered by the drive shaft 1061 during rotation, making it easier for the drive shaft 1061 to rotate under the action of airflow. The heat insulation layer 116 isolates the temperature in the second cavity, preventing the temperature from escaping through the third through hole and affecting the outside. The sealing plate 117 and the sealing block 118 provide a double seal for the third through hole, effectively preventing hot air from flowing out of the third through hole. This ensures that the hot air in the second cavity can only flow towards the second through hole, maintaining the temperature in the first cavity for heating the component 200.

[0058] The cover plate 102 is fixed to the furnace body 101 by a latch 104, which has the same structure as the latch 104 in the prior art. The cover plate 102 is provided with a hook, which can be lifted by a hoisting device to open the furnace cavity. The cover plate 102 is provided with a gas outlet pipe 105, and a cavity is provided on the side wall of the gas outlet pipe 105. A threaded plate is provided in the cavity. A water inlet is provided at the bottom of the cavity and a water outlet is provided at the top. The gas outlet pipe 105 is located at the center of the cover plate 102.

[0059] After the component 200 is placed into the furnace cavity, the cover plate 102 is closed, and the latch 104 is pulled to fix the cover plate 102 to the furnace body 101. Water pipes are connected to the water inlet and the water outlet respectively. Cold water enters from the water inlet, flows upward along the threaded plate, and then exits from the water outlet. The hot air in the first cavity is discharged from the air outlet pipe 105. When the airflow passes through the air outlet pipe 105, it contacts the inner wall of the air outlet pipe 105. The cold water flowing in the cavity exchanges heat with the hot air, which helps to reduce the impact of the hot air on the external environment. Because the second through hole is inclined, the airflow flows towards the side wall when it enters the first cavity. The airflow does not directly exit from the air outlet pipe 105, which increases the time the airflow stays in the first cavity and ensures that there is a sufficient temperature in the first cavity.

[0060] As a further preferred embodiment, the material carrier plate 106 is provided with a guide plate. The top of the guide plate is arc-shaped and diffused. The guide plate is located directly below the air outlet pipe 105, and the side of the guide plate extends beyond the side wall of the air outlet pipe 105. A second through hole is located below the guide plate. When the airflow flows into the first cavity through the second through hole, the airflow flowing out of the second through hole impacts the bottom of the guide plate. The airflow flows along the bottom surface of the guide plate. The guide plate absorbs the kinetic energy of the airflow moving upward, causing the airflow to flow more towards the side wall of the furnace cavity, increasing the residence time of the airflow in the first cavity, so as to heat the elements. The airflow flowing out of the second through hole impacts the bottom of the guide plate, providing a lifting force to the guide plate. The guide plate rises a short distance under the action of the airflow, reducing the pressure of the material carrier plate 106 on the partition plate 107, thereby reducing the friction force on the material carrier plate 106, making it easier for the airflow to push the material carrier plate 106 to rotate and adjust the position of the elements.

[0061] The material carrier plate 106 is provided with a guide ring, and the partition plate 107 is provided with a first movable groove. Both the guide ring and the guide groove are arranged around the pivot axis. The guide ring is embedded in the guide groove. The guide ring and the guide groove cooperate with each other to provide guidance for the rotation of the material carrier plate 106, reduce the squeezing force of the positioning plate on the first through hole, and improve the stability of the rotation of the material carrier plate 106.

[0062] The bottom of the first ring body 1081 is provided with a guide groove. The guide groove reduces the resistance of the first ring body 1081 to the airflow, making the airflow flow more smoothly towards the second through hole, reducing the kinetic energy loss of the airflow flowing to the second through hole, and making the airflow have a greater force to lift the material plate 106, reducing the resistance of the rotation of the material plate 106.

[0063] The cover plate 102 has an extension at its bottom, and a third annular groove that mates with the extension is provided on the inner wall of the furnace cavity. When the cover plate 102 is placed on the furnace body 101, the extension is inserted into the furnace cavity, improving the sealing effect of the cover plate 102 on the furnace cavity. A second annular groove is provided on the side wall of the extension, and a second sealing ring is provided in the second annular groove. A groove is provided at the bottom of the third annular groove, and a third sealing ring is provided in the groove. The second and third sealing rings ensure the sealing effect of the cover plate 102 on the furnace cavity, prevent hot air from flowing out of the first cavity, maintain the temperature inside the first cavity, and prevent hot air from affecting the external environment.

[0064] As another preferred option, a guide groove is also provided at the bottom of the second ring body 1082. The slope of the guide groove at the bottom of the second ring body 1082 is greater than the slope of the guide groove at the bottom of the first ring body 1081. With the guide groove at the bottom of the second ring body 1082, the upward airflow flows towards the inside of the windshield, and the airflow in the second cavity is guided into the second through hole, so as to provide sufficient hot airflow in the first cavity to heat the component.

[0065] In practical applications, it has been found that placing the heating block inside the air inlet duct results in insufficient heating of the airflow due to its rapid passage through the duct. Instead, the air inlet duct needs to be lengthened to achieve proper heating, significantly increasing equipment costs. Therefore, this application provides a further preferred solution, such as... Figure 9 As shown, the heating block 301 is placed on the inner wall of the second cavity. When the airflow enters the second cavity, it automatically forms a vortex-like airflow, increasing the duration of the airflow in the second cavity. At the same time, the airflow flows along the inner wall of the second cavity, increasing the contact effect and duration between the airflow and the heating block 301. Heating of the airflow is achieved without the need to lengthen the air inlet pipe. Furthermore, placing the heating block 301 in the second cavity ensures that the temperature of the entire furnace body remains consistent. This not only keeps the first cavity warm but also prevents cracking of the furnace body sidewalls due to uneven heating. This allows the entire furnace body to operate at the same temperature, increasing the stability of the furnace body and extending its service life.

[0066] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A welding apparatus for processing armored heating cables, comprising: The furnace body is configured to have a furnace cavity for heating elements; A material carrier plate is disposed inside the furnace body for placing components; Several material racks are evenly arranged on the material carrier plate for positioning components; Its features are: The material carrier plate is rotatably connected to the furnace body, and the material rack is rotatably connected to the material carrier plate; when the material carrier plate rotates about a pivot axis, the material rack rotates relative to the material carrier plate. The furnace body is provided with a partition that divides the furnace cavity into a first cavity and a second cavity. The furnace body is provided with an air inlet for introducing airflow into the second cavity to form an airflow flowing in a specified direction to drive the material plate to rotate. The side wall of the furnace body at the first cavity position is constructed into a cylindrical structure, and the side wall of the furnace body at the second cavity position is constructed into a conical structure. The cylindrical furnace body and the conical furnace body are coaxially arranged. The central axis of the cylindrical furnace body is defined as the pivot axis; Also includes: An air inlet pipe is provided on the side wall of the furnace body and communicates with the air inlet. The central axis of the air inlet duct is perpendicular to the pivoting central axis; The air inlet pipe is tangentially arranged to the cylindrical furnace body; The material carrier plate is provided with a guide ring, and the partition plate is provided with a first movable groove. Both the guide ring and the first movable groove are arranged around the pivot axis, and the guide ring is at least partially embedded in the first movable groove. Also includes: The drive shaft is located at the bottom of the material carrier plate; Several transmission rings are connected to the transmission shaft to prevent rotation; The partition plate is provided with a first through hole for connecting the first cavity and the second cavity, and the drive shaft passes through the first through hole; A heating element for heating the airflow entering the second cavity; The bottom of the partition is provided with a positioning plate, the diameter of which corresponds to the first through hole, and the positioning plate passes through the first through hole; the positioning plate is provided with a second through hole, the top of which is inclined towards the side wall of the furnace cavity; The bottom of the partition is provided with a wind shield, and the second through hole is provided inside the wind shield; the projection of the wind shield on the plane where the pivot axis is located overlaps with the projection of the transmission ring on the plane where the pivot axis is located. The material carrier plate is equipped with a guide plate, the top of which is arc-shaped and diffused. A second through hole is located below the guide plate. When the airflow flows into the first cavity through the second through hole, the airflow flowing out of the second through hole impacts the bottom of the guide plate. The airflow flows along the bottom surface of the guide plate, and the guide plate absorbs the kinetic energy of the airflow moving upward, causing the airflow to flow more towards the side wall of the furnace cavity. The airflow flowing out of the second through hole impacts the bottom of the guide plate, providing lifting force to the guide plate. The guide plate is lifted a short distance under the action of the airflow.

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