Welding rod conveying mechanism and welding rod drying furnace

Abstract

The utility model discloses a welding rod conveying mechanism which comprises a plurality of conveying units, each conveying unit comprises a set of horizontally-arranged conveying chains and further comprises a turning-over wheel, a turning-over belt and a discharging chain, the turning-over wheels are close to one sides of the discharging ends of the conveying units, the turning-over belts are arranged on the side edges of the turning-over wheels, and protruding blocks are arranged on the turning-over wheels at equal angles. The turning-over belt and the protruding block on the turning-over wheel form a groove for containing welding rods, the discharging chain is arranged below the turning-over wheel, a plurality of arc-shaped pieces are arranged on the discharging chain, and the arc-shaped pieces and the discharging chain form a plurality of cavities for containing the single welding rods. The completeness of the coating on the surface of the welding rod is effectively guaranteed, and the damage condition is reduced; meanwhile, shaking during chain conveying is reduced, stable operation of welding rods is guaranteed, disordered rods can be effectively prevented, meanwhile, the supporting frames are correspondingly arranged on the conveying chains, the contact area is reduced, friction is reduced, and the surfaces of the welding rods are further damaged by the conveying chains.

Description

Technical Field

[0001] The utility model relates to the technical field of welding wire processing, in particular to a welding rod conveying mechanism and a welding rod drying furnace. Background Art

[0002] Welding rod drying is an important pretreatment step, which aims to remove moisture, water and other impurities absorbed by the welding rod to ensure the quality of welding. Generally speaking, the drying temperature of welding rods is between 120℃ and 150℃, and the specific temperature may vary depending on the type of welding rod. The drying temperature of acid welding rods is usually 150℃ to 250℃, and the drying temperature of alkaline welding rods is higher, usually 300℃ to 400℃. The drying time of welding rods is generally 1 to 2 hours, and the specific time depends on the storage time and environmental conditions of the welding rods. Common drying methods include electric drying, airflow drying and solar drying. Electric drying is a commonly used method, which is suitable for drying large quantities of welding rods.

[0003] At present, most welding rods are dried using continuous chain furnaces, that is, the welding rods are placed on a set of parallel conveyor chains, and then the conveyor chains pass through the drying furnace. It is generally a multi-layer structure, that is, it first passes through the drying furnace from the top layer, and then turns over to the next layer and passes through the drying furnace again. The multi-layer structure is beneficial to extend the drying time and reduce the size of the machine equipment. However, when flipping from the upper chain to the next chain, it is easy to cause the welding rods to pile up together. When the welding rods are not dried, the surface coating of the welding rods piled together is easy to stick together, affecting the surface quality of the welding rods. At the same time, when flipping to the next layer, it is easy to bump into each other, causing damage to the surface of the welding rod. Utility Model Content

[0004] (I) Technical solution

[0005] In order to solve the above technical problems, the utility model provides a welding rod conveying mechanism, comprising a plurality of conveying units, which are arranged in layers in the same vertical plane, the conveying units comprising a group of horizontally arranged conveying chains, along the forward direction of the conveying chains, one end is a feeding end, and the other end is a discharging end, after the welding rod enters the conveying unit from the feeding end of one conveying unit, it enters the feeding end of the conveying unit of the next layer from the discharging end, the conveying unit also comprises a turning wheel, a turning belt and a discharging chain, the turning wheel is close to the discharging end of the conveying unit, the turning belt is arranged on the side of the turning wheel, the turning wheel is provided with convex blocks at equal angles, the turning belt and the convex blocks on the turning wheel form a groove for accommodating the welding rod, the discharging chain is arranged below the turning wheel, the welding rod falls onto the discharging chain after rotating through the turning wheel, and is transported to the conveying chain of the conveying unit of the next layer through the discharging chain, the discharging chain is provided with a plurality of arc sheets, and the plurality of arc sheets and the discharging chain form a plurality of cavities for accommodating a single welding rod.

[0006] Furthermore, the conveyor chain is a double-row chain including a plurality of chain links, each chain link specifically including an inner chain plate, an outer chain plate, a roller and a pin shaft, and an M-shaped support frame is provided on the outer chain plate and the inner chain plate located between the two pin shafts, and the middle part of the support frame is arc-shaped, and the arc radius is the same as the welding rod radius.

[0007] Furthermore, the discharge chain is also a double-row chain, and the arc-shaped pieces are fixed to the outer chain plate and the inner chain plate located on the inner side.

[0008] Furthermore, it also includes a chain guide rail, and the conveying chain passes through the chain guide rail.

[0009] Furthermore, the conveying chain, the turning belt and the discharge chain are each two, the turning wheel is coaxially provided with a double gear, the conveying chain is arranged on the double gear, the turning belt is wound around the corresponding turning belt wheel, and the discharge chain is also correspondingly arranged on the discharge chain gear.

[0010] Furthermore, the conveying chain is located above the turning wheel as the conveying part, and is located below the turning wheel as the return part. A guide block with an opening facing downward is provided on the return part, and the chain guide rail is correspondingly arranged at the position of the conveying part.

[0011] Based on the same inventive concept, the utility model also proposes a welding rod drying furnace, comprising any of the welding rod conveying mechanisms described above.

[0012] (II) Beneficial effects

[0013] Compared with the prior art, the technical solution proposed by the utility model has the following advantages:

[0014] (1) By setting the discharge chain between the turning wheel and the conveyor chain on the lower side for connection, the turned chains are neatly arranged in advance and then transported to the conveyor chain, which can prevent bumps and accumulation. In this way, the integrity of the coating on the surface of the welding rod can be effectively guaranteed during the drying process, reducing the possibility of damage;

[0015] (2) The conveying chain and the discharge chain use double-row chains and corresponding double gears. At the same time, the conveying part effectively fixes the chain through the chain guide. Through the above settings, the jitter of the chain during transmission can be effectively reduced, the smooth operation of the welding rod can be ensured, and the disorder of the rod can be effectively prevented. At the same time, a support frame is provided on the conveying chain to reduce the contact area, reduce friction, and further damage the conveying chain to the welding rod surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the arrangement of the conveying mechanism;

[0018] Figure 2 It is a top view of the conveying mechanism;

[0019] Figure 3 It is a schematic diagram of the specific structure of the turning wheel;

[0020] Figure 4 It is a schematic diagram of the material discharging chain structure;

[0021] Figure 5 This is a schematic diagram of the use of the material arrangement chain;

[0022] Figure 6 It is a schematic diagram of the conveyor chain structure;

[0023] Figure 7 Use schematic diagram for conveyor chain;

[0024] In the figure: 1-transmission chain, 2-turning wheel, 3-turning belt, 4-discharge chain, 5-bump, 6-arc sheet, 7-support frame, 8-chain guide, 9-double gear, 10-turning pulley, 11-discharge chain gear, 12-guide block, 13-welding rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. The described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the related prior art, welding rods are mostly dried in a continuous chain furnace, that is, the welding rods are placed on a set of parallel conveyor chains, and then the conveyor chains pass through the interior of the drying furnace, which is generally a multi-layer structure, that is, they first pass through the drying furnace from the top layer, and then turn over to the next layer and pass through the drying furnace again. The multi-layer structure is beneficial to prolonging the drying time and reducing the size of the machine equipment. However, when flipping from the upper chain to the lower chain, it is easy to cause the welding rods to pile up together. When the welding rods are not dried, the surface coating of the welding rods piled together is easy to stick together, affecting the surface quality of the welding rods. At the same time, when flipping to the next layer, it is easy for them to bump into each other, causing damage to the surface of the welding rod.

[0027] In order to solve the problems existing in the related prior art, the utility model proposes a welding rod conveying mechanism. The principle and structure of the utility model are described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Embodiment 1

[0029] See also Figures 1 to 5 The utility model proposes a welding rod conveying mechanism, which specifically includes multiple conveying units. The multiple conveying units are arranged in layers in the same vertical plane. Specifically in this embodiment, four conveying units are arranged on the same vertical plane. The conveying unit specifically includes a group of horizontally arranged conveying chains 1. Along the forward direction of the conveying chain 1, one end is the feeding end and the other end is the discharging end. After the welding rod enters the conveying unit from the feeding end of a conveying unit, it enters the feeding end of the next layer of conveying units from the discharging end. The conveying unit also includes a turning wheel 2, a turning belt 3 and a discharge chain 4. The turning wheel 2 is close to the discharging end of the conveying unit, and the turning belt 3 is arranged On the side of the turning wheel 2, a protrusion 5 is provided at an equal angle on the turning wheel 2, and the turning belt 3 and the protrusion 5 on the turning wheel 2 form a groove for accommodating the welding rod. The discharge chain 4 is arranged below the turning wheel 2. The welding rod falls onto the discharge chain 4 after the turning wheel 2 rotates, and is transported to the conveying chain 1 of the next layer of conveying unit through the discharge chain 4. A plurality of arc-shaped pieces 6 are provided on the discharge chain 4, and the plurality of arc-shaped pieces 6 and the discharge chain 4 form a plurality of cavities for accommodating a single welding rod. There is also a driving mechanism for driving the turning wheel 2, the turning belt 3 and the discharge chain 4 to rotate, such as a motor, etc., again without making too many restrictions, and the running speeds of the turning wheel 2 and the turning belt are the same.

[0030] The specific working principle is as follows: the welding rod 13 enters the feeding end of the topmost conveying unit through the feeding mechanism, and then the conveying chain 1 drives the welding rod 13 to move. When it moves to the position of the turning wheel 2, the welding rod will fall into the groove formed by the protrusion 5, and the welding rod rotates with the turning wheel 2. At the same time, the turning belt 3 presses the welding rod to prevent the welding rod from falling out of the groove. When it is flipped to the lower part of the turning wheel 2, the turning belt 3 is separated from the turning wheel 2. At this time, the welding rod will fall onto the discharge chain 4. The discharge chain 4 is tilted and discharges the welding rod 13 through the cavity formed by the discharge chain 4 and the arc-shaped sheet 6. Then, the welding rod is sent to the conveying chain 1 of the next conveying unit through the discharge chain 4, and the reciprocating motion is repeated until it is finally transported from the conveyor belt of the bottom conveying unit to the next work section.

[0031] See also Figure 6 and Figure 7 The conveyor chain 1 is a double-row chain, and the chain includes a plurality of chain links, each of which specifically includes an inner chain plate, an outer chain plate, a roller and a pin shaft. The outer chain plate and the inner chain plate located between the two pin shafts are provided with an M-shaped support frame 7, and the middle part of the support frame 7 is arc-shaped, and the arc radius is the same as the radius of the welding rod. In this way, when the conveyor chain is transported, the welding rod will fall on the arc-shaped recessed position in the middle of the support frame, which can effectively prevent shaking and prevent the strips from being disordered. As an alternative solution, the support frame 7 can be replaced by a gasket. It is only necessary to ensure that the upper contour of the gasket is the same as the upper shape of the support frame 7 to achieve the same effect. At the same time, the gasket can be an integrated structure with the chain plate, so that the processing of the chain is more convenient.

[0032] See also Figure 4 and Figure 5 The discharge chain 4 is also a double-row chain, and the arc-shaped piece 6 is fixed to the outer chain plate and the inner chain plate located on the inner side. Similarly, the arc-shaped piece is fixed to the inner chain plate and the outer chain plate between the two rollers of the chain link. This can improve stability. If the single-row chain is too long, the chain itself will be twisted to a certain extent, and the double-row chain can effectively prevent its own twisting.

[0033] See also Figure 6 and Figure 7 The conveying unit also includes a chain guide 8, through which the conveying chain 1 passes. By setting the chain guide 8, the conveying chain 1 is prevented from vibrating up and down during the transmission process, which can improve the stability. Because when the conveying chain 1 vibrates up and down, it may cause the welding rod 13 to pop out of the arc groove on the support frame 7 and stack together. By setting the chain guide, this situation can be effectively avoided.

[0034] See also Figures 1 to 3There are two conveying chains 1, two turning belts 3 and two discharge chains 4. The turning wheel 2 is coaxially provided with a double gear 9. The conveying chain 1 is arranged on the double gear 9. The turning belt 3 is wound around the corresponding turning belt pulley 10. The discharge chain 4 is also correspondingly arranged on the discharge chain gear 11. The turning belt 3 corresponds to the position of the protrusion 5 on the turning wheel 2. At the same time, the conveying chain 1, the turning belt 3 and the discharge chain 4 are staggered in the horizontal plane to prevent the transmission shafts and driving mechanisms of the conveying chain 1, the turning belt 3 and the discharge chain 4 from interfering with each other.

[0035] See also Figure 1 The conveying chain 1 is located on the upper part of the turning wheel 2 as the conveying part, and is located on the lower part of the turning wheel 2 as the returning part. A guide block 12 with an opening facing downward is provided on the returning part, and a chain guide rail 8 is correspondingly arranged at the position of the conveying part. The welding rod 13 is conveyed on the conveying part, and the returning part is not responsible for the welding rod transmission. Therefore, the conveying part is provided with a chain guide rail 8 to provide stability, and a guide block 12 is provided on the returning part to lift the returning part upward, so that more conveying units can be arranged at the same height, and finally the height of the overall equipment is reduced, which saves more space.

[0036] Based on the same inventive concept, the utility model also proposes a welding rod drying furnace, including the above-mentioned conveying mechanism, and also includes a furnace body, the furnace body is open on both sides, the transmission unit is arranged on the inner wall of the furnace body, and a heating device is arranged in the furnace body, so that when the welding rod reciprocates in the conveying mechanism, the furnace body dries the welding rod, and finally after drying, the welding rod leaves the drying furnace from the bottom conveying mechanism, which can effectively shorten the length of the traditional drying furnace, and at the same time prevent the welding rod from falling in the furnace, and also prevent the phenomenon of tangled rods.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A welding rod conveying mechanism, characterized in that: The invention comprises a plurality of conveying units, which are arranged in layers in the same vertical plane. The conveying units comprise a group of horizontally arranged conveying chains (1). Along the advancing direction of the conveying chains (1), one end is a feeding end and the other end is a discharging end. After the welding rod enters the conveying unit from the feeding end of a conveying unit, it enters the feeding end of the conveying unit of the next layer from the discharging end. The conveying unit also comprises a turning wheel (2), a turning belt (3) and a discharge chain (4). The turning wheel (2) is close to the discharging end of the conveying unit, and the turning belt (3) is arranged on the side of the turning wheel (2). The turning wheel (2) is provided with convex blocks (5) at equal angles, the turning belt (3) and the convex blocks (5) on the turning wheel (2) form a groove for accommodating welding rods, the discharge chain (4) is arranged below the turning wheel (2), the welding rod falls onto the discharge chain (4) after the turning wheel (2) rotates, and is transported to the conveying chain (1) of the conveying unit of the next layer through the discharge chain (4), and a plurality of arc-shaped pieces (6) are provided on the discharge chain (4), and the plurality of arc-shaped pieces (6) and the discharge chain (4) form a plurality of cavities for accommodating single welding rods.

2. A welding rod conveying mechanism according to claim 1, characterized in that: The conveyor chain (1) is a double-row chain, comprising a plurality of chain links, each chain link specifically comprising an inner chain plate, an outer chain plate, a roller and a pin shaft, an outer chain plate and an inner chain plate located between the two pin shafts are provided with an M-shaped support frame (7), the middle portion of the support frame (7) is arc-shaped, and the arc radius is the same as the radius of the welding rod.

3. A welding rod conveying mechanism according to claim 2, characterized in that: The discharge chain (4) is also a double-row chain, and the arc-shaped piece (6) is fixed to the outer chain plate and the inner chain plate located on the inner side.

4. A welding rod conveying mechanism according to claim 3, characterized in that: It also comprises a chain guide rail (8), through which the conveying chain (1) passes.

5. A welding rod conveying mechanism according to claim 4, characterized in that: The conveying chain (1), the turning belt (3) and the discharge chain (4) are each two in number. The turning wheel (2) is coaxially provided with a double gear (9). The conveying chain (1) is arranged on the double gear (9). The turning belt (3) is wound around the corresponding turning belt wheel (10). The discharge chain (4) is also correspondingly arranged on the discharge chain gear (11).

6. A welding rod conveying mechanism according to claim 5, characterized in that: The conveying chain (1) is located above the turning wheel (2) as the conveying part, and is located below the turning wheel (2) as the return part. A guide block (12) with an opening facing downward is provided on the return part, and the chain guide rail (8) is correspondingly arranged at the position of the conveying part.

7. A welding rod drying furnace, characterized in that: It comprises the welding rod conveying mechanism described in any one of claims 1-6.

Images