Efficient electrode drying box

Abstract

The utility model relates to a kind of efficient electrode drying oven, including oven body, the top wall of oven body is provided with exhaust hole, bottom wall is equipped with air supply mechanism, front side wall is equipped with box door, heating device is equipped in the oven body, at least one rotating skeleton is equipped in the oven body, the both ends of the rotating shaft of the rotating skeleton are rotatably supported on the two opposite side walls of oven body, and its one end is connected with driving device, a plurality of box for containing electrode are arranged on the rotating skeleton along its circumferential direction, the box is detachably connected to the rotating skeleton;The utility model is driven by rotating skeleton and detachable ventilation box body circumferentially arranged on it by setting driving device, change traditional static drying into dynamic drying, electrode constantly changes position and orientation in rotation, so that every electrode can be equally contacted hot air, completely eliminate the temperature difference problem of upper and lower layers caused by different distance from heat source.

Description

Technical Field

[0001] This utility model relates to the field of welding electrode processing technology, and in particular to a high-efficiency welding electrode drying box. Background Technology

[0002] Welding electrodes often contain moisture in their coating after production, storage, or exposure to moisture. If used directly for welding, this moisture decomposes under the high temperature of the electric arc, producing hydrogen gas. This can easily lead to defects such as porosity and cracks in the weld, severely affecting weld quality. Therefore, welding electrodes must be dried before use to remove moisture from the coating and ensure the reliability of the welding process.

[0003] Currently, general-purpose industrial drying ovens are commonly used for drying welding electrodes. These devices typically have a box-type structure with multiple layers of trays inside. During operation, workers place the welding electrodes layer by layer on the trays, set the drying temperature and time, and then start the equipment. Heat generated by hot air circulation or bottom heating elements heats the welding electrodes within the oven cavity, thus achieving the drying purpose. This type of equipment is simple in structure, easy to operate, and widely used in the industry.

[0004] However, the traditional multi-layer static drying method in ovens not only results in uneven heat and moisture distribution between the upper and lower layers due to the upward movement of hot steam, but also creates localized high-humidity environments within the electrode pile because the electrodes are statically piled up and moisture cannot diffuse. This leads to poor consistency in the drying quality of the same batch of electrodes, with some being under-dried or over-dried. Utility Model Content

[0005] In order to overcome the problems of uneven heat distribution and poor moisture discharge in existing welding rod drying ovens, this utility model provides a welding rod drying oven that can achieve uniform and efficient heating and promote rapid moisture evaporation.

[0006] The technical solution is as follows: A high-efficiency welding rod drying oven includes an oven body, an exhaust vent on the top wall of the oven body, an air supply mechanism on the bottom wall, and a door on the front side wall. A heating device is installed inside the oven body, and at least one rotating frame is installed inside the oven body. The two ends of the rotating frame's shaft are rotatably supported on two opposite side walls of the oven body, and one end of the shaft is connected to a driving device. Multiple boxes for holding welding rods are arranged along the circumference of the rotating frame. The boxes are detachably connected to the rotating frame and have a ventilation structure.

[0007] As a further preferred embodiment, the box body is a frame structure with hollowed-out side walls and bottom walls, and has an openable lid on one side. The lid is hinged to the box body and is equipped with a locking mechanism.

[0008] As a further preferred embodiment, the internal space of the box is limited to accommodate only a single row of welding rods.

[0009] As a further preferred embodiment, the box body is provided with inserts extending along its length on opposite sides, and the rotating frame is provided with slots arranged along the axis of rotation that are adapted to the inserts. The inserts and slots are engaged to radially limit the box body during rotation.

[0010] As a further preferred embodiment, a central heating tube is provided at the central axis position of the rotating frame.

[0011] As a further preferred embodiment, the oven body is provided with the same number of doors as the rotating frame, the doors being located on the lower part of the side wall of the oven body and sized to allow the box to pass through.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This utility model transforms traditional static drying into dynamic drying by setting up a rotating frame driven by a drive device and a detachable ventilation box arranged circumferentially on it. The welding rods continuously change position and orientation during rotation, so that each welding rod can be in equal contact with the hot airflow, completely eliminating the problem of temperature difference between upper and lower layers caused by different distances from the heat source. At the same time, the rotational centrifugal force and dynamic airflow work together to effectively break the static boundary layer on the surface of the welding rods, forcing the internal moisture to dissipate rapidly, thereby significantly improving drying efficiency while ensuring extremely high drying uniformity.

[0013] 2. The box body of this utility model adopts a hollow structure, which provides a full-range penetration channel for hot air, ensuring that the hot air flow can fully contact each welding rod during the rotation process.

[0014] 3. This utility model optimizes the problem of internal moisture accumulation caused by stacking welding rods by limiting the box to only accommodate a single row of welding rods, ensuring that hot air can wrap around each welding rod, and greatly improving the reliability of drying quality.

[0015] 4. This utility model, through the cooperation of the insert and slot along the length of the box, not only enables convenient assembly and disassembly, but also provides reliable radial limiting for the rotating box, effectively preventing the risk of slippage caused by centrifugal force and its own weight, and ensuring the safe and stable operation of the dynamic drying process.

[0016] 5. By setting a heating tube along the central axis of the rotating frame, this utility model forms a three-dimensional heating field from the inside out, which compensates for the weak heat in the central area when heating only one side wall, making the temperature field inside the oven more uniform.

[0017] 6. By setting a lower box door that corresponds to and is sized to the rotating frame, this utility model allows operators to quickly and safely pick up and put down the box without having to go deep into the high-temperature box, which greatly improves the convenience of operation and work efficiency, and reduces heat loss when opening the door. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the oven body of this utility model.

[0020] Figure 3 This is a schematic diagram of the transmission of the rotating frame and drive device of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the rotating frame of this utility model, which includes a box and a central heating tube.

[0022] Figure 5 This is a front view of the rotating frame of this utility model equipped with the box body.

[0023] Figure 6 This is a schematic diagram of the structure of the box body of this utility model. The enlarged part in the figure is a schematic diagram of the locking structure.

[0024] The meanings of the reference numerals in the figure are as follows: 1. Oven body, 11. Exhaust vent, 12. Air supply mechanism, 13. Oven door, 14. Casters, 2. Rotating frame, 21. Shaft, 22. Drive device, 23. Slot, 24. Bearing, 3. Box body, 31. Box cover, 32. Insert strip, 33. Locking mechanism, 4. Central heating tube, 5. Worm gear, 51. Worm. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 3As shown, this utility model provides a high-efficiency welding rod drying oven, which includes an oven body 1. The top wall of the oven body 1 is provided with an exhaust port 11 for discharging water vapor, the bottom wall is provided with an air supply mechanism 12 to generate hot air circulation from bottom to top, and the front side wall is provided with an easy-to-operate door 13. Heating devices are distributed inside the oven body 1 to ensure uniform internal temperature. At least one rotating frame 2 is provided inside the oven body 1. A rotating shaft 21 is provided at the center of the rotating frame 2, and the two ends of the rotating shaft 21 are rotatably supported on two opposite side walls of the oven body 1 by bearings 24. One end of the rotating shaft 21 is connected to a drive device 22 to provide smooth rotational power for the rotating frame 2. Multiple boxes 3 for holding welding rods are arranged circumferentially on the rotating frame 2. These boxes 3 are detachably connected to the rotating frame 2. The boxes 3 themselves adopt a ventilation structure design to ensure sufficient circulation of hot air.

[0027] refer to Figure 2 In a preferred embodiment, the oven body 1 adopts a rectangular box design with an insulation layer to reduce heat loss. The heating device specifically uses electric heating rods, arranged within the side and bottom walls of the oven. The air supply mechanism 12 continuously operates, blowing hot air from the bottom to the top, ultimately carrying moisture and discharging it through the exhaust vent 11 at the top. Casters 14 are installed at the bottom of the oven body 1 for easy movement of the equipment on the production site. Specifically, in this embodiment, two rotating frames 2 are arranged side-by-side inside the oven body 1 to increase the capacity of a single drying operation. Each rotating frame 2 is fixed by bearing seats at both ends and is driven to rotate by a common drive device 22 via a transmission system. (Reference) Figure 3 This transmission system can employ a worm gear mechanism, where worm wheels 5 are mounted on two rotating shafts 21, each driven by a worm 51 that penetrates the housing. The worm 51 is then driven by a geared motor. This design ensures the synchronous and smooth operation of the two rotating frames 2. (Reference) Figure 5 Each rotating frame 2 can install eight boxes 3, and the rotating frame 2 has mounting slots for the corresponding boxes 3.

[0028] The box body 3 can be made of woven metal mesh or materials such as perforated plates or grid plates. In a specific embodiment, refer to... Figure 6 The side and bottom walls of the box body 3 are hollowed out, forming an efficient ventilation structure. One side of the box body 3 is equipped with an openable lid 31, which is connected by a hinge and equipped with a locking mechanism 32 such as a latch, which not only facilitates the loading and unloading of welding rods, but also ensures that the lid 31 will not be accidentally opened during rotation.

[0029] In a preferred embodiment, the internal space of the housing 3 is designed to accommodate only a single row of welding rods. This structure avoids multiple layers of welding rods stacking, ensuring that hot air can unobstructedly envelop each welding rod, thereby fundamentally solving the technical problem of difficulty in evaporating internal moisture due to close contact between welding rods, achieving a uniform and efficient drying effect. Furthermore, since only a single row of welding rods is installed, the number of welding rods that can be held is reduced. To compensate for the insufficient number of rods dried at one time, the number of mounting slots can be increased. Therefore, the width of the housing 3 is reduced, and increasing the number of mounting slots does not affect the drying effect.

[0030] Combination Figure 4-6 As shown, the box body 3 can be stably installed on the rotating frame 2 by providing inserts 33 extending along its length on opposite sides of the box body 3. Specifically, each side of the box body 3 has two parallel inserts 33, one high and one low. The corresponding rotating frame 2 has slots 23 arranged along the axis of the rotating shaft 21, which are adapted to the inserts 33. The rear end of the slots 23 on the rotating frame 2 is non-through. When the box body 3 is fully inserted, it will axially limit the box body 3, and the inserts 33 and slots 23 will precisely match. When the box body 3 is pushed into the mounting groove, the cooperation between the inserts 33 and slots 23 provides reliable radial limiting for the box body 3, effectively resisting the centrifugal force generated during rotation, preventing the box body 3 from being thrown out, and ensuring the safety of equipment operation. In addition, during rotation, the front and rear side walls of the oven body 1 also play a role in limiting the axial movement of the box body 3.

[0031] refer to Figure 1 In a preferred embodiment, the number of doors 13 on the oven body 1 is consistent with the number of rotating frames 2. The doors 13 are located on the lower part of the oven side wall and are slightly larger than the outline dimensions of the box body 3 to allow the box body 3 to pass through smoothly. After opening, the doors 13 can be flipped to a horizontal position, with the height of the upper surface of their panels flush with the bottom edge of the box body 3 when inserted. This design allows the operator to place the box body 3 on the door 13 first and then smoothly push it into the rotating frame 2, simplifying the loading and unloading process and reducing heat loss during the opening process.

[0032] refer to Figure 2 and Figure 4 To further improve heating uniformity, a central heating pipe 4 is installed at the central axis of the rotating frame 2. This central heating pipe 4 can directly heat the rotating welding rod, effectively compensating for the relatively insufficient heat in the central area of ​​the rotating frame 2 when only heating from the box wall, forming a three-dimensional heating pattern from the inside out, making the temperature field distribution more uniform, thereby further accelerating the overall drying speed.

[0033] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the inventive concept, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A high-efficiency welding electrode drying oven, comprising an oven body (1), wherein the top wall of the oven body (1) is provided with an exhaust port (11), the bottom wall is provided with an air supply mechanism (12), the front side wall is provided with a door (13), and a heating device is provided inside the oven body (1), characterized in that, The oven body (1) is provided with at least one rotating frame (2). The two ends of the rotating shaft (21) of the rotating frame (2) are rotatably supported on the two opposite side walls of the oven body (1), and one end of the rotating frame (2) is connected to a driving device (22). Multiple boxes (3) for holding welding rods are provided on the rotating frame (2) along its circumference. The boxes (3) are detachably connected to the rotating frame (2) and have a ventilation structure.

2. The welding electrode drying oven according to claim 1, characterized in that: The box body (3) is a frame structure with hollowed-out side walls and bottom walls. One side of the box body (3) is provided with an openable lid (31). The lid (31) is hinged to the box body (3) and is provided with a locking mechanism.

3. The welding electrode drying oven according to claim 2, characterized in that: The internal space of the box (3) is limited to accommodate only a single row of welding rods.

4. The welding electrode drying oven according to claim 1, characterized in that: The box body (3) has inserts (32) extending along its length on opposite sides. The rotating frame (2) has slots (23) arranged along the axis of the rotating shaft (21) to match the inserts (32). The inserts (32) and slots (23) are inserted and matched to limit the radial movement of the box body (3) during rotation.

5. The welding electrode drying oven according to claim 1, characterized in that: The rotating frame (2) is provided with a central heating tube (4) at the central axis position.

6. The welding electrode drying oven according to claim 1, characterized in that: The oven body (1) is provided with the same number of doors (13) as the rotating frame (2). The doors (13) are located on the lower side wall of the oven body (1) and are sized to allow the box (3) to pass through.

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