A redirecting drum welding device

Abstract

The utility model provides a kind of change direction roller welding device, comprising: welding mechanism, the welding mechanism includes welding station, the right side fixedly connected with connecting plate in welding station top, the inboard of connecting plate is provided with pneumatic cylinder, the telescopic end fixedly connected with welding torch of pneumatic cylinder;Preheating mechanism, the preheating mechanism includes fixed plate, the quantity of fixed plate is two, respectively fixedly connected in the front and rear sides of welding station top, by setting preheating mechanism, it can be heated to welding area quickly and evenly, the temperature of welding area is monitored in real time, and according to preset temperature curve control heating power, preheat welding area to appropriate temperature before welding, keep temperature stable during welding, slow cooling after welding is completed, and appropriate preheating and heat preservation measures can effectively reduce temperature gradient in welding process, reduce the generation of thermal stress, to avoid the appearance of hot crack.

Description

Technical Field

[0001] This utility model relates to a reversing roller welding device, belonging to the field of reversing roller technology. Background Technology

[0002] A redirecting roller, also known as a guide roller, is a common key component of belt conveyors. It is mainly used to change the running direction of the conveyor belt or to tighten the conveyor belt to increase the wrap angle with the drive roller. Redirecting rollers are characterized by their compact structure, light weight, small footprint, reliable performance, beautiful appearance, safe and convenient use, and ability to work normally even in harsh conditions such as high dust levels and damp mud.

[0003] Chinese Patent (Publication No.: CN 219852795 U) discloses a roller-type welding device, which includes a base, a first direction component, an adjustment component, and a welding torch. The first direction component is disposed on the base, the adjustment component is slidably disposed on the first direction component, one end of the welding torch is fixed to the adjustment component, and the other end of the welding torch is used for welding the cylinder. The first direction component enables the welding torch to move linearly in a first direction during the welding process, and the adjustment component is used to adjust the welding position of the welding torch in three dimensions. Thus, by setting up the first direction component and the adjustment component, the roller-type welding device controls the welding torch to achieve automatic welding of the cylinder, replacing manual operation, reducing labor intensity, improving welding efficiency and welding consistency, and ensuring the stability and reliability of the product.

[0004] Idling rollers are widely used in industrial production, commonly found in belt conveyors and other equipment, to change the direction of the conveyor belt. Welding is a crucial step in the manufacturing process of idling rollers. However, traditional idling roller welding processes have many problems, among which hot cracking seriously affects the welding quality and service life of the rollers. Hot cracking typically occurs because localized high temperatures during welding cause the metal to melt and solidify rapidly. Under thermal stress, cracks form in the weld and heat-affected zone. This not only reduces the structural strength of the idling roller but may also lead to safety hazards during subsequent use. Currently, some idling roller welding devices on the market have shortcomings in welding technology and equipment structure, failing to effectively prevent hot cracking. Therefore, developing an idling roller welding device that can effectively prevent hot cracking is of significant practical importance.

[0005] To address this, a redirecting roller welding device is proposed. Utility Model Content

[0006] In view of this, the present invention provides a reversing roller welding device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0007] The technical solution of this utility model is achieved as follows: a redirecting roller welding device, comprising: A welding mechanism includes a welding table, a connecting plate fixedly connected to the right side of the top of the welding table, a cylinder provided on the inner side of the connecting plate, a welding gun fixedly connected to the telescopic end of the cylinder, an electric slide table provided on the top of the inner side of the connecting plate, an electric slider slidably connected to the inner side of the electric slide table, a sliding sleeve fixedly connected to the bottom of the electric slider, a limit rod fixedly connected to the inner side of the connecting plate, and the sliding sleeve slidably connected to the outer surface of the limit rod. The preheating mechanism includes two fixed plates, which are respectively fixedly connected to the front and rear sides of the top of the welding table. The left and right sides of the front fixed plate are fixedly connected to the front of the fixed plate. The output end of the first servo motor is fixedly connected to a rotating roller, and the rotating roller is located inside the two fixed plates. The rotating roller is provided with multiple sets of first heating guide wires inside.

[0008] More preferably, a temperature controller is fixedly connected to the front side of the welding table, and a temperature sensor is fixedly connected to the front side of each of the rotating rollers, and the output end of the temperature sensor is electrically connected to the input end of the temperature controller.

[0009] More preferably, it also includes a gas protection mechanism, which includes a load-bearing plate fixedly connected to the right side of the connecting plate. A protective gas storage tank is provided on the top of the load-bearing plate. A gas flow control valve is provided at the output end of the protective gas storage tank. A flexible tube is connected to the output end of the gas flow control valve. The left side of the flexible tube penetrates the inner surface of the connecting plate and is connected to a shapeable bendable tube. A nozzle is connected to the left side of the shapeable bendable tube. A first locking block is fixedly connected to the top of the inner side of the connecting plate, and the flexible tube is locked inside the first locking block. A second locking block is fixedly connected to the right side of the sliding sleeve, and the shapeable bendable tube is locked inside the second locking block.

[0010] More preferably, a conveying assembly is fixedly connected to the left side of the connecting plate. The conveying assembly includes a conveying table. A second servo motor is fixedly connected to the right side of the front of the conveying table. A conveying roller is fixedly connected to the output end of the second servo motor. A feeding groove is opened on the outer surface of the conveying roller. Multiple sets of second heating guide wires are provided at the bottom of the conveying table.

[0011] The present invention has the following advantages due to the adoption of the above technical solution: I. This utility model, by setting a preheating mechanism, can quickly and evenly heat the welding area, monitor the temperature of the welding area in real time, and control the heating power according to the preset temperature curve. Before welding, the welding area is preheated to a suitable temperature, the temperature is kept stable during the welding process, and the temperature is slowly reduced after welding. Appropriate preheating and heat preservation measures can effectively reduce the temperature gradient during the welding process, reduce the generation of thermal stress, and thus avoid the occurrence of hot cracks.

[0012] Second, by setting up a gas protection mechanism, this utility model can form a protective gas shield in the welding area. The protective gas shield can isolate impurities such as oxygen and nitrogen in the air, prevent them from reacting with the high-temperature weld metal, avoid defects such as porosity and inclusions, and at the same time help stabilize the welding arc, improve weld formation, and reduce the possibility of hot cracking.

[0013] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0015] Figure 1 This is a schematic diagram of the front view of the main body structure of this utility model; Figure 2 This is a schematic diagram of the left side structure of the welding mechanism of this utility model; Figure 3 This is a cross-sectional view of the rotating roller of this utility model; Figure 4 This is a schematic diagram of the welding mechanism of this utility model in its disassembled state; Figure 5 This is a schematic diagram of the gas protection mechanism of this utility model in its disassembled state; Figure 6 This is a cross-sectional view of the conveyor platform of this utility model.

[0016] Reference numerals: 100, Welding mechanism; 101, Welding table; 102, Connecting plate; 103, Cylinder; 104, Welding gun; 105, Electric slide table; 106, Electric slider; 107, Sliding sleeve; 108, Limiting rod; 200, Preheating mechanism; 201, Fixing plate; 202, First servo motor; 203, Rotating roller; 204, First heating guide wire; 205, Temperature controller; 206, Temperature sensor; 300, Gas protection mechanism; 301, Load-bearing plate; 302, Protective gas storage tank; 303, Gas flow control valve; 304, Flexible tube; 305, Shapeable bendable tube; 306, Nozzle; 307, First clamping block; 308, Second clamping block; 400, Conveying assembly; 401, Conveying table; 402, Second servo motor; 403, Conveying roller; 404, Second heating guide wire. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] Example 1 like Figure 1-3 As shown, this utility model embodiment provides a redirecting roller welding device, including: Welding mechanism 100 includes welding table 101. A connecting plate 102 is fixedly connected to the right side of the top of welding table 101. A cylinder 103 is provided on the inner side of connecting plate 102. A welding gun 104 is fixedly connected to the telescopic end of cylinder 103. An electric slide table 105 is provided on the top of the inner side of connecting plate 102. An electric slider 106 is slidably connected to the inner side of electric slide table 105. A sliding sleeve 107 is fixedly connected to the bottom of electric slider 106. A limit rod 108 is fixedly connected to the inner side of connecting plate 102, and the sliding sleeve 107 is slidably connected to the outer surface of limit rod 108. The preheating mechanism 200 includes two fixed plates 201, which are fixedly connected to the front and rear sides of the top of the welding table 101, respectively. The left and right sides of the front fixed plate 201 are fixedly connected to the front fixed plate 201. The output end of the first servo motor 202 is fixedly connected to a rotating roller 203, and the rotating roller 203 is located inside the two fixed plates 201. Multiple sets of first heating guide wires 204 are arranged inside the rotating roller 203. A temperature controller 205 is fixedly connected to the front of the welding table 101. A temperature sensor 206 is fixedly connected to the front of the rotating roller 203, and the output end of the temperature sensor 206 is electrically connected to the input end of the temperature controller 205.

[0020] By setting a preheating mechanism 200, the welding area can be heated quickly and evenly, the temperature of the welding area can be monitored in real time, and the heating power can be controlled according to the preset temperature curve. The welding area is preheated to a suitable temperature before welding, the temperature is kept stable during welding, and the temperature is slowly reduced after welding. Appropriate preheating and heat preservation measures can effectively reduce the temperature gradient during welding, reduce the generation of thermal stress, and thus avoid the occurrence of hot cracks.

[0021] Example 2 like Figure 5 As shown, in one embodiment, a gas protection mechanism 300 is also included. The gas protection mechanism 300 includes a load-bearing plate 301, which is fixedly connected to the right side of the connecting plate 102. A protective gas storage tank 302 is provided on the top of the load-bearing plate 301. A gas flow control valve 303 is provided at the output end of the protective gas storage tank 302. A flexible tube 304 is connected to the output end of the gas flow control valve 303. The left side of the flexible tube 304 penetrates the inner surface of the connecting plate 102 and is connected to a shapeable bendable tube 305. A nozzle 306 is connected to the left side of the shapeable bendable tube 305. A first locking block 307 is fixedly connected to the top of the inner side of the connecting plate 102, and the flexible tube 304 is locked to the inner side of the first locking block 307. A second locking block 308 is fixedly connected to the right side of the sliding sleeve 107, and the shapeable bendable tube 305 is locked to the inner side of the second locking block 308.

[0022] By setting up a gas protection mechanism 300, a protective gas shield can be formed in the welding area. The protective gas shield can isolate impurities such as oxygen and nitrogen in the air, prevent them from reacting with the high-temperature weld metal, avoid defects such as porosity and inclusions, and at the same time help stabilize the welding arc, improve weld formation, and reduce the possibility of hot cracking.

[0023] Example 3 like Figure 4-6As shown, in one embodiment, a conveying assembly 400 is fixedly connected to the left side of the connecting plate 102. The conveying assembly 400 includes a conveying platform 401. A second servo motor 402 is fixedly connected to the right side of the front side of the conveying platform 401. A conveying roller 403 is fixedly connected to the output end of the second servo motor 402. A feeding groove is opened on the outer surface of the conveying roller 403. Multiple sets of second heating guide wires 404 are provided at the bottom of the conveying platform 401.

[0024] By setting up the conveying component 400, the material can be easily conveyed and preheated during the conveying process to reduce the probability of hot cracking. By setting up the electric slide table 105, electric slider 106, sliding sleeve 107 and limiting rod 108, the welding gun 104 can be easily moved, thereby increasing the welding range of the welding gun 104. By setting up the first locking block 307 and the second locking block 308, the flexible tube 304 and the shapeable bendable tube 305 can be easily fixed to prevent them from falling off.

[0025] In operation, this invention works as follows: First, the material to be welded is placed sequentially inside the conveyor table 401, and the second heating guide wire 404 and the first heating guide wire 204 are activated to preheat it. Then, the output end of the second servo motor 402 rotates, driving the conveyor roller 403 to rotate, thereby moving the material through the discharge chute of the conveyor roller 403 from the inside of the conveyor table 401 to the top of the rotating roller 203. Subsequently, the electric slide table 105 and the electric slider 106 drive the sliding sleeve 107 and the cylinder 103 to move back and forth, and the telescopic end of the cylinder 103 extends downward, driving the welding gun 104 to move to the area to be welded. During the welding process, the first servo motor 202 can be activated as needed to make the first servo motor 204 rotate. Machine 202 drives the rotating roller 203 to rotate, thereby rotating the material. This makes the material heat more evenly and facilitates circumferential welding. During the welding process, the gas inside the protective gas storage tank 302 is released through the gas flow control valve 303. The gas passes through the flexible tube 304 and the shapeable bendable tube 305 and is sprayed out through the nozzle 306, forming a protective gas shield in the welding area. The protective gas shield can isolate impurities such as oxygen and nitrogen in the air. It should be noted that the protective gas can be argon. It can form a stable protective gas film on the weld surface to prevent oxygen in the air from reacting with the alloying elements in the weld metal, thereby ensuring the purity and quality of the weld and reducing the generation of hot cracks.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A redirecting roller welding device, characterized in that, include: Welding mechanism (100) includes a welding table (101), a connecting plate (102) is fixedly connected to the right side of the top of the welding table (101), a cylinder (103) is provided on the inner side of the connecting plate (102), a welding gun (104) is fixedly connected to the telescopic end of the cylinder (103), an electric slide (105) is provided on the top of the inner side of the connecting plate (102), an electric slider (106) is slidably connected to the inner side of the electric slide (105), a sliding sleeve (107) is fixedly connected to the bottom of the electric slider (106), a limit rod (108) is fixedly connected to the inner side of the connecting plate (102), and the sliding sleeve (107) is slidably connected to the outer surface of the limit rod (108). The preheating mechanism (200) includes two fixed plates (201), which are fixedly connected to the front and rear sides of the top of the welding table (101). The left and right sides of the front fixed plate (201) are fixedly connected to the front fixed plate (201). The output end of the first servo motor (202) is fixedly connected to a rotating roller (203), and the rotating roller (203) is located inside the two fixed plates (201). The rotating roller (203) is provided with multiple sets of first heating guide wires (204) inside.

2. The redirecting roller welding device according to claim 1, characterized in that: A temperature controller (205) is fixedly connected to the front side of the welding table (101), and a temperature sensor (206) is fixedly connected to the front side of each of the rotating rollers (203). The output end of the temperature sensor (206) is electrically connected to the input end of the temperature controller (205).

3. The redirecting roller welding device according to claim 1, characterized in that: It also includes a gas protection mechanism (300), which includes a load-bearing plate (301) fixedly connected to the right side of the connecting plate (102). A protective gas storage tank (302) is provided on the top of the load-bearing plate (301). A gas flow control valve (303) is provided at the output end of the protective gas storage tank (302). A flexible pipe (304) is connected to the output end of the gas flow control valve (303). The left side of the flexible pipe (304) passes through it. The inner surface of the connecting plate (102) is connected to a shapeable bendable tube (305). A nozzle (306) is connected to the left side of the shapeable bendable tube (305). A first locking block (307) is fixedly connected to the top of the inner side of the connecting plate (102), and the flexible tube (304) is locked to the inner side of the first locking block (307). A second locking block (308) is fixedly connected to the right side of the sliding sleeve (107), and the shapeable bendable tube (305) is locked to the inner side of the second locking block (308).

4. The redirecting roller welding device according to claim 1, characterized in that: A conveying assembly (400) is fixedly connected to the left side of the connecting plate (102). The conveying assembly (400) includes a conveying table (401). A second servo motor (402) is fixedly connected to the right side of the front side of the conveying table (401). A conveying roller (403) is fixedly connected to the output end of the second servo motor (402). A feeding groove is opened on the outer surface of the conveying roller (403). Multiple sets of second heating guide wires (404) are provided at the bottom of the conveying table (401).

Images