Graphite electrode continuous transport device

Abstract

The application discloses a graphite electrode continuous conveying device, which comprises a chain plate conveying mechanism, a suspension and material turning mechanism and a base. The chain plate conveying mechanism is composed of a chain wheel transmission mechanism and a chain plate mechanism. The chain wheel transmission mechanism is installed on the upper plane of the suspension and material turning mechanism and is arranged at the front and rear ends of the suspension and material turning mechanism. The chain plate mechanism is composed of two groups of roller chains and chain plate belts. The two groups of roller chains are connected at the head and tail to form a ring belt, and the ring belt is wound on the chain wheel transmission mechanisms at the front and rear ends of the suspension and material turning mechanism. The suspension and material turning mechanism comprises a rotating support, front and rear rotating positioning devices of the rotating support, a material turning transition plate and a driving oil cylinder. The base comprises a welded support and a transition plate. The transition plate is installed at the outer front end of the chain plate conveying mechanism and is located between the synchronous shears and the chain plate conveying mechanism. The application avoids the deformation of the front end of the graphite electrode and ensures the continuous production of the graphite electrode, thereby remarkably improving the production efficiency and the product quality and the qualified rate.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary devices for graphite electrode production, and specifically relates to a continuous transport device for graphite electrodes. Background Technology

[0002] In the extrusion production of graphite electrodes, manufacturers commonly use a reciprocating moving support structure for online transport of the graphite electrodes. This transport device, driven by a hydraulic cylinder and guided by rollers, can reciprocate along the extrusion direction to transport the graphite electrodes, and has advantages such as simple structure and reliable operation.

[0003] As is well known, in the production of graphite electrodes, the graphite electrodes that have just exited the extrusion nozzle are at a high temperature and are relatively soft, making them prone to defects such as deformation and cracks. When the graphite electrode is sheared and transported by the moving support, if the extrusion equipment does not slow down or interrupt the extrusion process, the bottom of the freshly extruded graphite electrode at the nozzle will be in a cantilevered state on one side without effective support. As extrusion continues, the cantilevered portion lengthens, and under the influence of gravity, the tip of the electrode will sag and deform, potentially leading to extended cracks, and in severe cases, breakage of the graphite electrode.

[0004] Therefore, in the use of existing graphite electrode transport devices, the extrusion equipment needs to slow down or interrupt extrusion until the moving carriage has transported the previous piece and returned to the receiving position before normal extrusion can resume. This makes it difficult to continuously produce graphite electrodes, hindering further improvements in production efficiency. Furthermore, in actual production, the significant changes in extrusion speed during slowdown or interruption are reflected in the cross-section of the graphite electrode, causing variations in the uniformity along its length. This ultimately affects product quality and reduces the yield rate of graphite electrode products. Summary of the Invention

[0005] To address some or all of the technical problems existing in the prior art, the present invention provides a continuous graphite electrode transport device, comprising a chain conveyor mechanism, a suspension and turning mechanism, and a base. The suspension and turning mechanism is mounted on the base, and the chain conveyor mechanism is mounted on the suspension and turning mechanism, wherein:

[0006] The chain plate transmission mechanism consists of a sprocket drive mechanism and a chain plate mechanism. The sprocket drive mechanism is installed on the upper plane of the suspension and turning mechanism and is arranged at both ends of the suspension and turning mechanism along the length direction of the suspension and turning mechanism. The sprocket drive mechanism includes an indexing sprocket, a drive shaft, a support base, and a drive unit. The chain plate mechanism consists of two sets of roller chains and a chain plate belt. The two sets of roller chains are connected end to end to form an annular belt. The annular belt is wound around the sprocket drive mechanism at both ends of the suspension and turning mechanism.

[0007] The suspension and tilting mechanism includes a rotating bracket, a front rotating positioning device, a rear rotating positioning device, a tilting transition plate, and a drive cylinder. The front and rear rotating positioning devices are located at the front and rear ends of the base, respectively. The front and rear parts of the rotating bracket are connected to the front and rear rotating positioning devices, and their rotation axes are collinear. The tilting transition plate is located on one side of the rotating bracket and includes a tilting plate, a support roller, and a hinge frame. One end of the tilting plate is hinged to the rotating bracket via the hinge frame, and the other end of the tilting plate is movably mounted in a base guide groove within a cooling water tank via the support roller. A drive cylinder is located at both the front and rear of the rotating bracket. The fixed end of the drive cylinder is hinged to the base, and the moving end of the drive cylinder is hinged to the rotating bracket.

[0008] The base includes a welding bracket and a transition plate. The welding bracket is provided at each of the front and rear ends of the base. The welding bracket serves as the mounting base for the suspension and turning mechanism. The transition plate is installed on the front exterior of the chain conveyor mechanism and is located between the synchronous shear and the chain conveyor mechanism.

[0009] Furthermore, in the above-mentioned continuous graphite electrode transport device, the chain belt is composed of multiple welded pallets and is installed on the connecting shaft of the roller chain. The chain belt is provided with chain belt guide and support mechanisms on both sides.

[0010] Furthermore, in the above-mentioned continuous graphite electrode transport device, the rotating support front rotation positioning device consists of an annular guide rail and multiple guide wheels. The annular guide rail is fixed on the welding support at the front end of the base. The central axis of the annular guide rail coincides with the center line of the graphite electrode extrusion. The outer circumferential surface of the annular guide rail is machined to form a sliding surface. The multiple guide wheels are arranged in a circle at the front end of the rotating support and match the sliding surface of the outer circumference of the annular guide rail.

[0011] Furthermore, in the above-mentioned continuous graphite electrode transport device, the rotating support rear rotation positioning device is composed of a rotating shaft and a copper guide sleeve. The welding support at the rear end of the base is machined with a positioning hole. The rotating shaft and the copper guide sleeve are installed in the positioning hole. The central axis of the rotating shaft coincides with the center line of the graphite electrode extrusion. The rotating support is connected to the base through the rotating shaft and the copper guide sleeve.

[0012] Furthermore, in the above-mentioned continuous transport device for graphite electrodes, the drive unit consists of a coupling and a hydraulic motor or a servo motor.

[0013] Furthermore, in the above-mentioned continuous transport device for graphite electrodes, the rotating support and the base are welded components made of shaped steel or steel plates.

[0014] The continuous transport device for graphite electrodes of the present invention has the following advantages and beneficial effects:

[0015] When the graphite electrode is transported by the chain conveyor mechanism, the front end of the graphite electrode that just exits the nozzle immediately enters the range of the transition plate. Before reaching the chain belt of the chain mechanism, its bottom is always effectively supported, and there will be no cantilever phenomenon of graphite electrode. This fundamentally avoids the problem of the graphite electrode sagging and deformation, effectively prevents the graphite electrode from generating extended cracks and breakage, and significantly reduces the defect rate.

[0016] During the transport of graphite electrodes by the chain conveyor mechanism, the extrusion equipment maintains the original speed and continues to extrude without slowing down or interrupting the extrusion. This ensures the continuous production of graphite electrodes, significantly improving production efficiency. Furthermore, since the extrusion speed remains constant, the uniformity of the graphite electrodes along the length direction is guaranteed, improving product quality and pass rate.

[0017] The chain conveyor mechanism adopts a ring belt structure with the ends connected, which can meet the requirements of continuous electrode production at high extrusion speeds. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 for further understanding of the embodiments of the present invention and constitute a part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0019] Figure 1 This is a front view of the continuous transport device for graphite electrodes of the present invention;

[0020] Figure 2 yes Figure 1Right view of the continuous transport device for graphite electrodes shown.

[0021] Figure 3 It is along Figure 1 Sectional view of AA;

[0022] Figure 4 It is along Figure 1 Sectional view of BB;

[0023] Figure 5 It is along Figure 1 A cross-sectional view of the middle CC, in which the continuous graphite electrode transport device is in the material conveying state;

[0024] Figure 6 It is along Figure 1 A cross-sectional view of the C-C section, showing the continuous graphite electrode transport device in a tipping state. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] like Figures 1 to 6 As shown, the continuous transport device for graphite electrodes of the present invention includes a chain plate transport mechanism 1, a suspension and turning mechanism 2, and a base 3. The suspension and turning mechanism 2 is mounted on the base 3, and the chain plate transport mechanism 1 is mounted on the suspension and turning mechanism 2.

[0027] The chain conveyor mechanism 1 consists of a sprocket drive mechanism 11 and a chain plate mechanism 12. The sprocket drive mechanism 11 is mounted on the upper plane of the suspension and turning mechanism 2 and is arranged at both ends of the suspension and turning mechanism 2 along its length. The sprocket drive mechanism 11 includes an indexing sprocket 111, a drive shaft 112, a support base 113, and a drive unit 114. The chain plate mechanism 12 consists of two sets of roller chains 121 and a chain plate belt 122. The two sets of roller chains 121 are connected end to end to form an annular belt, which is wound around the sprocket drive mechanism 11 at both ends of the suspension and turning mechanism 2. The chain plate belt 122 consists of multiple welded support plates and is mounted on the connecting shaft of the roller chains 121. Chain plate belt guide and support mechanisms 123 are provided on both sides of the chain plate belt 122.

[0028] The suspension and turning mechanism 2 includes a rotating bracket 21, a front rotating positioning device 22, a rear rotating positioning device 23, a turning transition plate 24, and a drive cylinder 25. The front rotating positioning device 22 and the rear rotating positioning device 23 are located at the front and rear ends of the base 3, respectively. The front and rear parts of the rotating bracket 21 are connected to the front rotating positioning device 22 and the rear rotating positioning device 23. The rotation axes defined by the front rotating positioning device 22 and the rear rotating positioning device 23 are collinear, and the rotating bracket 21 rotates around the common axis defined by the front rotating positioning device 22 and the rear rotating positioning device 23. The turning transition plate 24 is located on one side of the rotating bracket 21 and includes a turning plate 241, a support roller 242, and a hinge frame 243. One end of the turning plate 241 is hinged to the rotating bracket 21 through the hinge frame 243, and the other end of the turning plate 241 is movably located in the base guide groove 26 in the cooling water tank 200 through the support roller 242. A drive cylinder 25 is provided at the front and rear of the rotating bracket 21 to control the rotation angle of the rotating bracket 21. The fixed end of the drive cylinder 25 is hinged to the base 3, and the moving end of the drive cylinder 25 is hinged to the rotating bracket 21.

[0029] The base 3 includes a welded bracket 31 and a transition plate 32. A welded bracket 31 is provided at each of the front and rear ends of the base 3, serving as the mounting base for the suspension and turning mechanism 2. The transition plate 32 is installed on the front exterior of the chain conveyor mechanism 1, close to the extrusion equipment, and positioned between the synchronous shear and the chain conveyor mechanism 1. The length of the transition plate 32 is set within a reasonable range to serve as a transition section between the synchronous shear and the chain conveyor mechanism 1.

[0030] In one specific embodiment, the rotating support front rotation positioning device 22 consists of an annular guide rail 221 and multiple guide wheels 222. The annular guide rail 221 is fixed to the welded bracket 31 at the front end of the base 3. The central axis of the annular guide rail 221 coincides with the center line of the graphite electrode extrusion. The outer circumferential surface of the annular guide rail 221 is machined to form a sliding surface. The multiple guide wheels 222 are arranged in a circle at the front end of the rotating support 21 and match the sliding surface of the outer circumference of the annular guide rail 221. Through the guide wheels 222 and the annular guide rail 221, the rotating support 21 can rotate around the central axis of the annular guide rail 221.

[0031] In one specific embodiment, the rotating support rear rotation positioning device 23 consists of a rotating shaft 231 and a copper guide sleeve 232. A positioning hole is machined on the welded support 31 at the rear end of the base 3. The rotating shaft 231 and the copper guide sleeve 232 are installed in this positioning hole, and the central axis of the rotating shaft 231 coincides with the center line of the graphite electrode extrusion. The rotating support 21 is connected to the base 3 via the rotating shaft 231 and the copper guide sleeve 232, and can rotate around the central axis of the rotating shaft 231 via the rotating shaft 231 and the copper guide sleeve 232.

[0032] Furthermore, in the continuous transport device for graphite electrodes of the present invention, the drive unit 114 may be composed of a coupling and a hydraulic motor or a servo motor.

[0033] Furthermore, in the continuous transport device for graphite electrodes of the present invention, the rotating support 21 and the base 3 are welded components made of shaped steel or steel plates.

[0034] The working principle and process of the continuous graphite electrode transport device of the present invention are as follows:

[0035] During the extrusion production of graphite electrodes, after the graphite electrodes are sheared by the synchronous shear, the main extrusion equipment continues to extrude at the original speed. The sheared graphite electrode (i.e., the previous graphite electrode) is pushed by the graphite electrode (i.e., the next graphite electrode) that has just been extruded from the nozzle, so that the contact surfaces of the two graphite electrodes enter the range of the transition plate 32, until they reach the chain conveyor 122 of the chain conveyor mechanism 12. The chain conveyor mechanism 1 speeds up, quickly transporting the previous graphite electrode 100 to the designated position and completing the flipping action (see...). Figure 6 Then, it returns to its original position to await the transport of the next graphite electrode. Meanwhile, since the main extrusion equipment continues to extrude at the original speed, the next graphite electrode is still produced at the normal production speed. As the extrusion proceeds, its front end will enter the range of the transition plate 32. Until the next shearing, the next graphite electrode is always effectively supported by the transition plate 32, and there will be no cantilever phenomenon, thus fundamentally avoiding the problem of the front end of the graphite electrode sagging and deforming.

[0036] In summary, compared with the prior art, the continuous transport device for graphite electrodes of the present invention has the following advantages and beneficial effects:

[0037] When the graphite electrode is transported by the chain conveyor mechanism, the front end of the graphite electrode that just exits the nozzle immediately enters the range of the transition plate. Before reaching the chain belt of the chain mechanism, its bottom is always effectively supported, and there will be no cantilever phenomenon of graphite electrode. This fundamentally avoids the problem of the graphite electrode sagging and deformation, effectively prevents the graphite electrode from generating extended cracks and breakage, and significantly reduces the defect rate.

[0038] During the transport of graphite electrodes by the chain conveyor mechanism, the extrusion equipment maintains the original speed and continues to extrude without slowing down or interrupting the extrusion. This ensures the continuous production of graphite electrodes, significantly improving production efficiency. Furthermore, since the extrusion speed remains constant, the uniformity of the graphite electrodes along the length direction is guaranteed, improving product quality and pass rate.

[0039] The chain conveyor mechanism adopts a ring belt structure with the ends connected, which can meet the requirements of continuous electrode production at high extrusion speeds.

[0040] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Meanwhile, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0041] It should also be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A graphite electrode continuous transport device characterized by, The graphite electrode continuous conveying device comprises a chain plate conveying mechanism, a hanging and material turning mechanism and a base, the hanging and material turning mechanism is installed on the base, and the chain plate conveying mechanism is installed on the hanging and material turning mechanism. The chain plate conveying mechanism is composed of a chain wheel transmission mechanism and a chain plate mechanism, the chain wheel transmission mechanism is installed on the upper surface of the hanging and material turning mechanism and arranged at the front and back ends of the hanging and material turning mechanism along the length direction of the hanging and material turning mechanism, the chain wheel transmission mechanism comprises an indexing sprocket, a transmission shaft, a support seat and a driving unit, the chain plate mechanism is composed of two groups of roller chains and a chain plate belt, the two groups of roller chains are connected end to end to form an annular belt, and the annular belt is wound on the chain wheel transmission mechanisms at the front and back ends of the hanging and material turning mechanism; The hanging and material turning mechanism comprises a rotating support, a rotating support front rotating positioning device, a rotating support rear rotating positioning device, a material turning transition plate and a driving oil cylinder, the rotating support front rotating positioning device and the rotating support rear rotating positioning device are arranged at the front and back ends of the base, the front part and the rear part of the rotating support are connected to the rotating support front rotating positioning device and the rotating support rear rotating positioning device respectively, and the rotating axes defined by the rotating support front rotating positioning device and the rotating support rear rotating positioning device are collinear, the material turning transition plate is arranged on one side of the rotating support and comprises a material turning plate, a support roller and a hinge frame, one end of the material turning plate is hinged to the rotating support through the hinge frame, the other end of the material turning plate is movably arranged in a base guide groove in a cooling water tank through the support roller, and one driving oil cylinder is arranged at the front part and the rear part of the rotating support respectively, the fixed end of the driving oil cylinder is hinged to the base, and the moving end of the driving oil cylinder is hinged to the rotating support; The base comprises a welding support and a transition plate, one welding support is arranged at the front and back ends of the base respectively, and the welding support serves as the mounting base of the hanging and material turning mechanism, and the transition plate is installed at the outer front end of the chain plate conveying mechanism and located between the synchronous shears and the chain plate conveying mechanism; The chain plate belt is composed of a plurality of welded supporting plates and installed on the connecting shaft of the roller chain, and chain plate belt guide and support mechanisms are arranged on the two sides of the chain plate belt; The rotating support front rotating positioning device is composed of an annular guide rail and a plurality of guide wheels, the annular guide rail is fixed on the welding support at the front end of the base, the central axis of the annular guide rail is coincident with the graphite electrode extrusion discharge center line, and a guide sliding surface is formed on the outer circumferential surface of the annular guide rail by machining, and the plurality of guide wheels are arranged in a circle at the front end of the rotating support and matched with the guide sliding surface of the outer circumferential surface of the annular guide rail. The rear rotation positioning device of the rotating support is composed of a rotating shaft and a copper guide sleeve, wherein a positioning hole is processed on the welding support at the rear end of the base, the rotating shaft and the copper guide sleeve are installed in the positioning hole, the central axis of the rotating shaft coincides with the center line of the extrusion of the graphite electrode, and the rotating support is connected to the base through the rotating shaft and the copper guide sleeve; In the extrusion production process of the graphite electrode, after the shearing of the graphite electrode is completed by the synchronous shears, the main machine of the extrusion equipment keeps the original speed to continue the extrusion work, the cut-off graphite electrode is pushed by the graphite electrode just extruded from the die nozzle, the contact surface of the front and rear graphite electrodes enters the range of the transition platform, and then reaches the chain plate belt of the chain plate mechanism, the chain plate transmission mechanism speeds up, quickly transports the previous graphite electrode to the designated position and completes the turnover action, and then returns to wait for the transportation of the next graphite electrode; meanwhile, the main machine of the extrusion equipment keeps the original speed to continue the extrusion work, the next graphite electrode is still produced at the normal production speed, and with the extrusion, the front end part thereof enters the range of the transition platform until the next shearing, the next graphite electrode is always supported by the transition platform, and the cantilever phenomenon is avoided, so that the drooping deformation of the front end part of the graphite electrode is avoided.

2. The graphite electrode continuous transport apparatus according to claim 1, characterized by The driving unit is composed of a shaft coupling and a hydraulic motor or a servo motor.

3. The graphite electrode continuous transport apparatus according to claim 1, characterized by The rotating support and the base are welded parts composed of profile steel or steel plates.

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