Welding wire pay-off machine

Abstract

The utility model provides a welding wire pay-off machine. The welding wire pay-off machine comprises a bearing mechanism, a wire pay-off mechanism and a tail jacking mechanism, the wire pay-off mechanism and the tail jacking mechanism are installed on the bearing mechanism, and the wire pay-off mechanism comprises a wire pay-off tip cone assembly, a first transmission assembly fixedly connected with the wire pay-off tip cone assembly and a wire pay-off driving assembly fixedly connected with the first transmission assembly. The wire releasing driving assembly can drive the spool to rotate through the first transmission assembly and the wire releasing tip cone assembly so as to achieve automatic wire releasing. The tail top mechanism comprises a tail top tip cone piece, a second transmission assembly fixedly connected with the tail top tip cone piece and a tail top driving assembly fixedly connected with the second transmission assembly, the tail top tip cone piece is used for being connected with the spool, and the tail top driving assembly can drive the tail top tip cone piece to move back and forth in the direction where the central axis of the spool is located through the second transmission assembly. The welding wire pay-off machine is used for being matched with a large-diameter spool, the welding wire production cost can be reduced, and the welding wire production efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding wire production, and in particular relates to a welding wire unwinding machine. Background Art

[0002] Welding wire is a welding material used as a filler metal or a conductive metal wire, including carbon steel welding wire, low alloy structural steel welding wire, alloy structural steel welding wire, stainless steel welding wire and non-ferrous metal welding wire, etc. The surface of the welding wire is not coated with anti-oxidation flux. It is used as a filler metal in gas welding and tungsten inert gas shielded arc welding; in submerged arc welding, electroslag welding and other metal arc shielded arc welding, it is both a filler metal and a conductive electrode.

[0003] After the welding wire is produced, it is first wound on an I-shaped wheel, then unwound through a wire unwinding machine equipped with an I-shaped wheel, and finally wound onto a wire reel through a layer winding machine. The welding wire on the wire reel is wound in regular layers and the weight specifications of the welding wire wound on the wire reel are unified to facilitate shipment.

[0004] At present, all major welding wire factories use I-shaped wheels with a diameter of 800mm and a weight of 1.2 tons, and use small wire unwinding equipment. Using a small I-shaped wheel requires a lot of manpower and material resources to transport the I-shaped wheel, while using a larger I-shaped wheel (diameter of 1140mm and weight of 2.5 tons) to store welding wire can save transportation costs and labor costs. Accordingly, a new welding wire unwinding machine needs to be developed to match the larger I-shaped wheel. Utility Model Content

[0005] The utility model aims to provide a welding wire unwinding machine matching a large-diameter I-shaped wheel unwinding wire, so as to reduce the production cost of welding wire and improve the production efficiency of welding wire, so as to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a welding wire unwinding machine for unwinding wire from an I-shaped wheel, the welding wire unwinding machine comprising:

[0007] A bearing mechanism, the bearing mechanism comprising a first frame and a second frame arranged at an interval, the I-shaped wheel being located between the first frame and the second frame;

[0008] A wire-releasing mechanism, wherein the wire-releasing mechanism is installed on the first frame, and the wire-releasing mechanism comprises a wire-releasing top cone assembly extending out of the first frame, a first transmission assembly fixedly connected to the wire-releasing top cone assembly, and a wire-releasing drive assembly fixedly connected to the first transmission assembly, wherein the wire-releasing top cone assembly comprises a first top cone for connecting to one end of the spool, and the wire-releasing drive assembly can drive the spool to rotate through the first transmission assembly and the wire-releasing top cone assembly to realize automatic wire-releasing;

[0009] A tail top mechanism, the tail top mechanism is installed on the second frame, the tail top mechanism includes a tail top cone extending out of the second frame, a second transmission assembly fixedly connected to the tail top cone, and a tail top drive assembly fixedly connected to the second transmission assembly, the tail top cone is used to be connected to the other end of the I-shaped wheel, and the tail top drive assembly can drive the tail top cone to move back and forth along the direction of the central axis of the I-shaped wheel through the second transmission assembly to change the distance between the tail top cone and the I-shaped wheel.

[0010] In a specific embodiment, the wire-releasing top cone assembly also includes a fixed cone plate, positioning holes opened at both ends of the fixed cone plate, and two second top cones, the first top cone is arranged in the middle of the fixed cone plate and is fixedly connected to the fixed cone plate, the two second top cones are respectively installed in the two positioning holes and are fixedly connected to the fixed cone plate, and the second top cones are used to insert into the socket of the side plate of the I-shaped wheel.

[0011] In a specific embodiment, the second top cone includes a mounting seat installed in the positioning hole, a through hole formed through the mounting seat, a cover plate covering the end of the mounting seat away from the I-shaped wheel and fixedly connected to the mounting seat, a cone head partially accommodated in the through hole, and a spring member clamped between the cone head and the cover plate, the cone head includes a cylindrical cone seat, a head connected to the cone seat and smaller in size than the cone seat, and a mounting groove formed by a surface of the cone seat away from the head, the cone seat is accommodated in the through hole and the head extends out of the through hole, the head is used to insert into the jack of the side plate of the I-shaped wheel, and the two ends of the spring member are respectively abutted against the bottom of the mounting groove and the cover plate.

[0012] In a specific embodiment, the first transmission assembly includes a flange cylinder, a first transmission shaft partially accommodated in the flange cylinder and extending out of the flange cylinder at both ends, and a first bearing group installed on the first transmission shaft and located in the flange cylinder, the flange cylinder is connected to the first frame, and the first extending end of the first transmission shaft is connected to the wire release top cone assembly.

[0013] In a specific embodiment, the first bearing group includes a first bearing respectively installed on one end of the first transmission shaft close to the wire-releasing top cone assembly, a second bearing installed on one end of the first transmission shaft away from the wire-releasing top cone assembly, and a third bearing located between the first bearing and the second bearing, wherein the first bearing and the second bearing are used to bear the radial force of the first transmission shaft, and the third bearing is used to bear the axial force of the first transmission shaft.

[0014] In a specific embodiment, the wire release drive assembly includes a motor, a first pulley mounted on the output shaft of the motor, a second pulley mounted on the second protruding end of the first transmission shaft and fixedly connected to the first transmission shaft, a belt, and a brake unit sleeved on the first transmission shaft and connected to the first transmission shaft, the second pulley is connected to the first pulley through the belt and the diameter of the second pulley is larger than that of the first pulley, and the brake unit is arranged between the second pulley and the flange cylinder.

[0015] In a specific embodiment, the second transmission assembly includes a cylinder with an axial hole at the front end and a hollow interior, a second transmission shaft partially accommodated in the cylinder and with the first end passing through the axial hole and fixedly connected to the tail top cone, and a second bearing group installed on the second transmission shaft and fixedly connected to the inner wall of the cylinder, the second bearing group includes fourth bearings respectively installed at one end of the second transmission shaft adjacent to the tail top cone, a fifth bearing installed at one end of the second transmission shaft away from the tail top cone, and a sixth bearing located between the fourth bearing and the fifth bearing, wherein the fourth bearing and the fifth bearing are used to bear the radial force of the second transmission shaft, and the sixth bearing is used to bear the axial force of the second transmission shaft.

[0016] In a specific embodiment, the tail top drive assembly includes a drive unit fixedly connected to the cylinder and capable of driving the cylinder to move back and forth in the direction of the center axis of the I-wheel, the drive unit includes a tail plate connected to one end of the cylinder away from the top cone, and two first cylinders arranged at intervals, the piston rods of the two first cylinders are respectively connected to the two ends of the tail plate, and the extension and retraction of the piston rod of the first cylinder can drive the second transmission shaft to move back and forth in the direction of the center axis of the I-wheel through the tail plate and the cylinder connected to the tail plate.

[0017] In a specific embodiment, two of the first cylinders are fixedly mounted on the second frame and are located on a side of the tail plate facing the I-shaped wheel, the tail plate includes two notches formed by being recessed inward from both ends of the tail plate, the tail top drive assembly also includes two connecting members for connecting the piston rod of the first cylinder and the tail plate, the connecting members include a first connecting rod and a second connecting rod connected to each other, a circular ring portion extending outward from the first connecting rod, and a threaded hole opened in the second connecting rod, the first connecting rod is clamped in the notch and the two sides of the tail plate are respectively abutted against the circular ring portion and the second connecting rod, and the piston rod of the first cylinder is inserted into the threaded hole to form a threaded connection.

[0018] In a specific embodiment, the welding wire unwinding machine also includes a locking mechanism for limiting the tail top mechanism, the locking mechanism includes a locking drive assembly installed on the second frame, and a limiting rod fixedly connected to the locking drive assembly, the locking drive assembly can drive the limiting rod to move downward along the height direction of the second frame to limit the tail plate or move upward to allow the tail plate to move backward.

[0019] The beneficial effects of the utility model include at least:

[0020] 1. The welding wire unwinding machine provided by the utility model is used to match the large-diameter I-shaped wheel (diameter is 1140mm, weight is 2.5 tons) for wire unwinding, and the wire unwinding speed can reach 30m / s. It is a new large-scale heavy-load high-speed wire unwinding equipment. With this welding wire unwinding machine, the I-shaped wheel can wind more welding wire, which can reduce the transportation cost of the I-shaped wheel and improve the welding wire production efficiency.

[0021] 2. The wire-releasing mechanism in the welding wire unloading machine provided by the utility model includes a wire-releasing top cone assembly extending out of the first frame, a first transmission assembly fixedly connected to the wire-releasing top cone assembly, and a wire-releasing drive assembly fixedly connected to the first transmission assembly, the wire-releasing top cone assembly includes a first top cone for connecting to one end of the I-shaped wheel, and the wire-releasing drive assembly can drive the I-shaped wheel to rotate through the first transmission assembly and the wire-releasing top cone assembly to realize automatic wire releasing; the wire-releasing mechanism has the advantages of compact design and high wire-releasing linear speed.

[0022] 3. The first bearing group of the wire-releasing mechanism and the second bearing group of the tail top mechanism both include three bearings, two of which are used to bear radial force, and one bearing is used to bear axial force. Different bearings are used to bear radial force and axial force respectively. In this way, the calculation amount of bearing selection can be reduced, the selection is convenient, and the service life of each bearing can be increased.

[0023] 4. The tail top mechanism provided by the utility model comprises a tail top cone member extending out of the second frame, a second transmission assembly fixedly connected to the tail top cone member, and a tail top drive assembly fixedly connected to the second transmission assembly, wherein the tail top cone member is used to be connected to the other end of the I-shaped wheel, and the tail top drive assembly can drive the tail top cone member to move back and forth along the direction of the central axis of the I-shaped wheel through the second transmission assembly; in this way, the tail top drive assembly drives the second transmission assembly to move, so that the top cone member and the I-shaped wheel can be changed from a spacing setting to an insertion setting or from an insertion setting to a spacing setting, even if the top cone member abuts against the I-shaped wheel or the top cone member loosens the I-shaped wheel, it is convenient to clamp the I-shaped wheel without manual operation, and it can also match different large-diameter I-shaped wheels.

[0024] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of an I-shaped wheel provided in one embodiment of the utility model;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a wire-laying machine equipped with an I-shaped wheel provided in one embodiment of the utility model;

[0027] Figure 3 for Figure 2 A schematic diagram of the planar structure of a wire-laying machine with an I-shaped wheel installed at an angle is shown;

[0028] Figure 4 for Figure 3 Sectional view along line AA;

[0029] Figure 5 for Figure 4 A magnified view of part B;

[0030] Figure 6 for Figure 2 A partial three-dimensional structural schematic diagram of a wire-laying machine equipped with a spool is shown;

[0031] Figure 7 It is a schematic diagram of a partial three-dimensional structure of a bearing mechanism in a wire-laying machine at one angle;

[0032] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the bearing mechanism in the wire-laying machine from another angle;

[0033] Fig. 9 It is a three-dimensional structural schematic diagram of the wire-releasing mechanism, the material-pushing mechanism and the I-shaped wheel in the wire-releasing machine;

[0034] Fig.10 It is a partial three-dimensional structural schematic diagram of a wire-releasing mechanism in a wire-releasing machine;

[0035] Fig.11 for Fig.10 A schematic diagram of the planar structure at an angle;

[0036] Fig.12 for Fig.10 Sectional view along line CC;

[0037] Fig.13 It is a partial three-dimensional structural schematic diagram of the tail top mechanism in the wire placing machine;

[0038] Fig.14 It is a three-dimensional structural diagram of a wire arrangement mechanism in a wire-releasing machine at one angle;

[0039] Fig.15 for Fig.14 A magnified view of part D in the middle;

[0040] Fig.16 It is a three-dimensional structural diagram of the wire arrangement mechanism in the wire-releasing machine from another angle;

[0041] Fig.17 for Fig.16 Enlarged view of part E. DETAILED DESCRIPTION

[0042] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention can be defined and covered by a variety of different implementations according to the claims.

[0043] The existing spool has a diameter of 800 mm and a weight of 1.2 tons, and can be easily reeled out using a small wire-laying device. In order to reduce the cost of transporting the spool, the utility model provides a wire-laying machine for matching a spool with a larger diameter.

[0044] The utility model provides a wire-releasing machine that can match a spool with a diameter of 1140 mm and a weight of 2.5 tons. The wire-releasing line speed of the wire-releasing machine can reach 30 m / s, and the wire-releasing machine is a brand-new large-scale heavy-load high-speed wire-releasing equipment.

[0045] It should be noted that, for I-wheel diameters of 0mm, 1050mm, 1mm, 1200mm and other I-wheel diameters, the wire releasing machine provided by the utility model can also realize actual wire releasing, but the dimensions of some structures and the selection of some equipment need to be adaptively adjusted.

[0046] See also Figures 1 to 17 The utility model provides a welding wire unwinding machine, which is used for automatically unwinding the I-shaped wheel 200.

[0047] Please refer to Figure 1 The I-shaped wheel 200 includes a first side disc 201 and a second side disc 202 which are spaced apart, and a center tube 203 which is connected to the first side disc 201 and the second side disc 202 at both ends, and a welding wire is wound on the center tube 203 .

[0048] The first side plate 201 includes a first side plate body 2011, a first conical hole 2012 located in the middle of the first side plate body 2011, and at least two sockets 2013 surrounding the first conical hole 2012. The second side plate 202 includes a second side plate body 2021, and a second conical hole 2022 located in the middle of the second side plate body 2021.

[0049] In this embodiment, the central axis of the first side disc body 2011 and the central axis of the first conical hole 2012 are located on the same straight line, and the central axis of the second side disc body 2021 and the central axis of the second conical hole 2022 are located on the same straight line.

[0050] The wire unwinding machine includes a bearing mechanism 10, an automatic door 20, a wire unwinding mechanism 30, a tail top mechanism 40, a locking mechanism 50, a pushing mechanism 60 and a wire arranging mechanism 70. The bearing mechanism 10 is used to install the automatic door 20, the wire unwinding mechanism 30, the tail top mechanism 40, the locking mechanism 50, the pushing mechanism 60 and the wire arranging mechanism 70. The automatic door 20 is used to protect the operation of the I-shaped wheel. The wire unwinding mechanism 30 and the tail top mechanism 40 jointly carry the I-shaped wheel and the wire unwinding mechanism 30 is also used to drive the I-shaped wheel 200 to rotate to realize automatic wire unwinding. The locking mechanism 50 cooperates with the tail top mechanism 40 to crimp the I-shaped wheel so that the I-shaped wheel will not fly out during the rotation process. The pushing mechanism 60 is used to separate the I-shaped wheel 200 from the wire unwinding mechanism 30 after the I-shaped wheel 200 unwinds the wire to facilitate the unloading of the I-shaped wheel 200. The wire arranging mechanism 70 is used to control the uniform arrangement of the welding wire when the welding wire is rewound back to the I-shaped wheel 200 after the wire is tangled.

[0051] Please refer to Figure 4 , Figure 7 and Figure 8 The supporting mechanism 10 includes a first frame 11 and a second frame 12 which are spaced apart from each other, and a side shell 13 whose two ends are respectively stacked on the sides of the first frame 11 and the second frame 12. The first frame 11 is adjacent to the first side plate 201 and is located on a side of the first side plate 201 away from the central tube 203. The second frame 12 is adjacent to the second side plate 202 and is located on a side of the second side plate 202 away from the central tube 203.

[0052] The first frame 11 is used to install the wire releasing mechanism 30 and the material pushing mechanism 60 .

[0053] The first frame 11 includes a first frame body having a receiving space formed by connecting a plurality of first frame shells 111 , and a plurality of first reinforced shells 112 installed in the receiving space. The plurality of first reinforced shells 112 are arranged horizontally or vertically.

[0054] In this embodiment, the first frame is a rectangular frame, and the first reinforcing shell 112 is used to increase the bearing capacity of the first frame. The arrangement of the multiple first reinforcing shells 112 is associated with the specific structures of the wire releasing mechanism 30 and the pushing mechanism 60.

[0055] In the present invention, the specific structure of the first frame 11 is not limited, and it only needs to meet the bearing capacity.

[0056] The second frame 12 is used to install the tail lift mechanism 40 and the locking mechanism 50 .

[0057] The second frame 12 includes a second frame body having a receiving space formed by connecting a plurality of second frame shells 121, and a plurality of second reinforced shells 122 installed in the receiving space. The plurality of second reinforced shells are arranged horizontally or vertically.

[0058] In this embodiment, the second frame is a rectangular frame, and the second reinforced shell 122 is used to increase the bearing capacity of the second frame. The arrangement of the plurality of second reinforced shells 122 is associated with the specific structures of the tail top mechanism 40 and the locking mechanism 50 .

[0059] In the present invention, the specific structure of the second frame 12 is not limited, and it only needs to meet the bearing capacity.

[0060] In the present invention, a wire arrangement notch 131 is provided at a position of the side shell 13 facing the spool 200 .

[0061] The automatic door 20 includes a door body and a door body track. The door body can slide along the door body track to open or close the door body.

[0062] The wire releasing mechanism 30 is used to support the I-shaped wheel together with the tail top mechanism 40, and is also used to drive the I-shaped wheel to rotate to achieve automatic wire releasing.

[0063] Please refer to 9 to Fig.12 The wire-releasing mechanism 30 includes a wire-releasing top cone assembly 31, a first transmission assembly 32 connected to the wire-releasing top cone assembly 31, and a wire-releasing drive assembly 33 connected to the first transmission assembly 32. The wire-releasing drive assembly 33 can drive the wire-releasing top cone assembly 31 to rotate through the first transmission assembly 32, thereby driving the I-shaped wheel 200 to rotate to release the wire.

[0064] The wire-releasing top cone assembly 31 includes a fixed cone plate 311, positioning holes opened at both ends of the fixed cone plate 311, a first top cone 312 installed in the middle of the fixed cone plate 311 and fixedly connected to the fixed cone plate 311, and two second top cones 313 respectively installed in the two positioning holes and fixedly connected to the fixed cone plate 311, the first top cone 312 is fixedly connected to the first transmission assembly 32, wherein the first top cone 312 is used to insert into the first cone hole 2012, and the two second top cones 313 are used to insert into two insertion holes 2013.

[0065] In the present invention, the first top cone 312 and the second top cone 313 are provided to ensure that the I-shaped wheel does not slip during transportation, and the wire unwinding device operates stably.

[0066] In this embodiment, the fixed connection between the fixed cone plate 311 and the first top cone 312 may be a threaded connection, a pin connection, or the like.

[0067] In this embodiment, the fixed cone plate 311 is a plate body whose middle width is greater than the widths at both ends.

[0068] Preferably, the first top cone 312 includes a first cone portion 3121 fixedly connected to the fixed cone plate 311, a first groove 3122 formed by the first cone portion 3121 being recessed inwardly toward the surface of the I-shaped wheel 200, and a first mounting hole 3123 formed through the bottom of the first groove 3122.

[0069] In this embodiment, the shape of the first cone portion 3121 matches the shape of the first cone hole 2012. When the wire unwinding mechanism 30 supports the I-shaped wheel 200, the first cone portion 3121 is inserted into the first cone hole 2012 and the first cone portion 3121 abuts against the hole wall of the first cone hole 2012.

[0070] In this embodiment, the first cone portion 3121 is a cone structure that is smaller toward one end of the I-shaped wheel and larger away from the end of the I-shaped wheel, and in the direction from the wire releasing mechanism 30 to the tail top mechanism 40, the first cone portion 3121 includes a first part, a second part and a third part that are connected in sequence, wherein the first part is a cylindrical structure, the second part and the third part are both truncated cone structures, the diameter of the bottom surface of the second part is the same as the diameter of the bottom surface of the first part, the diameter of the top surface of the second part is smaller than the diameter of the bottom surface of the second part and is the same as the diameter of the bottom surface of the third part, and the diameter of the top surface of the third part is smaller than the diameter of the bottom surface of the third part.

[0071] The first groove 3122 is formed by being recessed inward from a surface of the third portion away from the first portion.

[0072] In this embodiment, the second portion and the third portion of the first cone portion 3121 are inserted into the first cone hole 2012 .

[0073] Preferably, the second top cone 313 includes a mounting seat 3131 installed in the positioning hole, a through hole 3132 formed through the mounting seat 3131, a cover plate 3133 covering the end of the mounting seat 3131 away from the I-shaped wheel 200 and fixedly connected to the mounting seat 3131, a cone head 3134 partially accommodated in the through hole 3132, and a spring member 3135 clamped between the cone head 3134 and the cover plate 3133, and the cone head 3134 is used to be inserted into the socket of the I-shaped wheel 200.

[0074] In this embodiment, the mounting seat 3131 includes a cylindrical first mounting seat and a cylindrical second mounting seat, and the diameter of the first mounting seat is smaller than the diameter of the second mounting seat, the first mounting seat is partially accommodated in the positioning hole, and the fixed cone plate 311 is fixedly connected to the second mounting seat.

[0075] The through hole 3132 includes a first through hole and a second through hole that are connected. The first through hole is close to the I-shaped wheel and the aperture of the first through hole is smaller than the aperture of the second through hole. A step portion is formed at the position where the first through hole and the second through hole are connected, thereby limiting the movement of the cone head.

[0076] The cone head 3134 includes a cylindrical cone seat, a head connected to the cone seat and smaller than the cone seat, and a mounting groove formed by being recessed inward from the surface of the cone seat away from the head, wherein the cone seat is completely received in the through hole and the head protrudes out of the through hole. In this embodiment, the mounting groove is used to mount the spring member 3135.

[0077] In this embodiment, the shape of the head portion matches the shape of the insertion hole. When the cone head 3134 is fully inserted into the insertion hole of the I-shaped wheel, the cone seat abuts against the stepped portion of the through hole 3132 .

[0078] The two ends of the spring member 3135 are respectively in contact with the bottom of the installation groove and the cover plate 3133. In this embodiment, the elastic end of the spring member 3135 is located in the installation groove and the non-elastic end of the spring member is in contact with the cover plate. When the cone head of the second top cone 313 is in contact with the first side plate, the spring member is compressed. When the second top cone is facing the socket, the elastic force generated by the spring member can push the cone head forward, so that the cone head of the second top cone 313 is automatically inserted into the socket. In this way, when the I-shaped wheel is installed, the second top cone 313 is not inserted into the socket. If the I-shaped wheel slips during operation, the second top cone 313 can be automatically inserted into the socket of the I-shaped wheel to avoid slipping again and ensure the stable operation of the wire release device.

[0079] The first transmission assembly 32 includes a flange cylinder 324, a first transmission shaft 321 partially accommodated in the flange cylinder 324 and with both ends extending out of the flange cylinder 324, a first bearing group 322 installed on the first transmission shaft 321 and located in the flange cylinder 324, and two first limiting rings 323 for limiting the first bearing group 322. The flange cylinder 324 is connected to the first frame 11.

[0080] In this embodiment, the first top cone 312 is fixedly connected to the first transmission shaft 321 .

[0081] Preferably, the top cone assembly 31 also includes a first expansion sleeve 314 installed in the first groove 3122, the first protruding end of the first transmission shaft 321 passes through the first mounting hole 3123 and is inserted into the first groove 3122, and the first transmission shaft 321 is connected to the first cone portion 3121 through the first expansion sleeve 314.

[0082] In this embodiment, the fixed cone plate 311 is sleeved on the first transmission shaft 321, and the fixed cone plate 311 is fixedly connected to the first top cone 312. In this way, the fixed cone plate 311 is connected to the first transmission shaft 321 through the first top cone 312, so that it can rotate with the first transmission shaft 321, thereby driving the second top cone 313 to rotate together.

[0083] In this embodiment, the end of the first transmission shaft 321 facing the I-shaped wheel is the first protruding end of the first transmission shaft, and the end away from the I-shaped wheel is the second protruding end of the first transmission shaft. The first protruding end of the first transmission shaft 321 extends out of the flange tube 324 and is connected to the first cone part of the first top cone 312 through the first expansion sleeve 314. The second protruding end of the first transmission shaft 321 extends out of the flange tube 324 and is connected to the wire release drive assembly 33.

[0084] Preferably, the first bearing group 322 includes a first bearing 3221 installed on one end of the first transmission shaft 321 adjacent to the wire-releasing top cone assembly 31, a second bearing 3222 installed on one end of the first transmission shaft 321 away from the wire-releasing top cone assembly 31, and a third bearing 3223 located between the first bearing 3221 and the second bearing 3222, wherein the first bearing 3221 and the second bearing 3222 are used to bear the radial force of the first transmission shaft 321, and the third bearing 3223 is used to bear the axial force of the first transmission shaft 321.

[0085] In this embodiment, one end of the first bearing 3221 abuts against the flange tube 324 and the other end abuts against the third bearing 3223, and one end of the second bearing 3222 away from the first bearing 3221 and one end of the third bearing 3223 away from the first bearing 3221 are respectively provided with a first limiting ring 323 sleeved on the first transmission shaft.

[0086] It is understandable that, in order to facilitate the installation of the three bearings, a boss may also be machined on the first transmission shaft, so that the three bearings can be easily limited.

[0087] In this embodiment, the first bearing 3221 and the second bearing 3222 are cylindrical roller bearings, and the third bearing 3223 is a four-point contact ball bearing.

[0088] In the present invention, two of the three bearings are used to bear the radial force of the first transmission shaft, and one of the three bearings is used to bear the axial force of the second transmission shaft. In this way, it is convenient to select the bearings based on the axial force and the radial force respectively, and at the same time, the service life of the first bearing group can be extended.

[0089] In this embodiment, the flange of the flange cylinder 324 is fixedly connected to the first frame housing 112 of the first frame 11. Preferably, the first transmission assembly 32 further includes two first end covers 325 respectively mounted at both ends of the flange cylinder 324, and the two first end covers 325 protect the flange cylinder 324.

[0090] Preferably, the wire unwinding mechanism 30 further includes a fixing ring 34 sandwiched between the first end cover 325 and the fixed cone plate 311 .

[0091] The wire-releasing drive assembly 33 comprises a motor 331, a first pulley 332 mounted on the output shaft of the motor 331, a second pulley 333 mounted on the second protruding end of the first transmission shaft 321 and fixedly connected to the first transmission shaft 321, a belt 334, and a brake unit 335 sleeved on the first transmission shaft 321 and connected to the first transmission shaft 321, the second pulley 333 is connected to the first pulley 332 through the belt 334, and the diameter of the second pulley 333 is larger than that of the first pulley 332, and the brake unit 335 is arranged between the second pulley 333 and the flange cylinder 324. The motor 331 drives the first pulley 332, and drives the second pulley 333 and the first transmission shaft 321 fixedly connected to the second pulley 333 to rotate through the first pulley 332, and the first transmission shaft 321 drives the I-shaped wheel to rotate through the wire-releasing top cone assembly 31 to realize automatic wire-releasing.

[0092] Preferably, the brake unit 335 includes a connecting sleeve 3351 which is sleeved on the first transmission shaft 321 and fixedly connected to the first transmission shaft 321 , a brake disc 3352 installed on the connecting sleeve 3351 , and at least one brake 3353 arranged along the peripheral direction of the brake disc 3352 .

[0093] In this embodiment, the brake 3353 is connected to the first frame 11 .

[0094] More preferably, the number of the brakes 3353 is two, which are evenly distributed, and the brakes are pneumatic brakes.

[0095] Specifically, the brake comprises two brake pads which are arranged on both sides of the brake disc and are connected to each other, and a pneumatic component which drives the brake pads to clamp the brake disc.

[0096] In this embodiment, the brake unit 335 further includes a second expansion sleeve 3354 , and the first transmission shaft 321 is connected to the connecting sleeve 3351 via the second expansion sleeve 3354 .

[0097] Please refer to Figures 4 to 6 and Fig.13 The tail top mechanism 40 includes a tail top cone 41 for connecting to the I-wheel 200, a second transmission assembly 42 fixedly connected to the tail top cone 41, and a tail top driving assembly 43 fixedly connected to the second transmission assembly. The tail top driving assembly 43 can drive the tail top cone 41 to move back and forth along the direction of the central axis of the I-wheel 200 through the second transmission assembly 42 so that the tail top cone 41 and the I-wheel 200 are changed from a spaced setting to an inserted setting or from an inserted setting to a spaced setting.

[0098] In this embodiment, the structure of the tail top cone 41 is completely the same as that of the first top cone, and the two are arranged opposite to each other and respectively abut against the two ends of the I-shaped wheel.

[0099] The tail top cone 41 includes a second cone portion 411, a second groove 412 formed by being recessed inwardly from the second cone portion 411 toward the surface of the I-shaped wheel, and a second mounting hole 413 formed through the bottom of the second groove.

[0100] In this embodiment, the second cone portion 411 matches the shape of the second cone hole 2022. When the tail top mechanism 40 supports the I-shaped wheel, the second cone portion 411 is inserted into the second cone hole 2022 and the second cone portion 411 abuts against the hole wall of the second cone hole 2022.

[0101] In this embodiment, the second cone portion 411 is a cone structure that is smaller toward one end of the I-shaped wheel and larger away from the end of the I-shaped wheel, and in the direction from the tail top mechanism 40 to the wire release mechanism 30, the second cone portion 411 includes a fourth part, a fifth part and a sixth part that are connected in sequence, wherein the fourth part is a cylindrical structure, the fifth part and the sixth part are both truncated cone structures, the diameter of the bottom surface of the fifth part is the same as the diameter of the bottom surface of the fourth part, the diameter of the top surface of the fifth part is smaller than the diameter of the bottom surface of the fifth part and is the same as the diameter of the bottom surface of the sixth part, and the diameter of the top surface of the sixth part is smaller than the diameter of the bottom surface of the sixth part.

[0102] The second groove is formed by being recessed inwardly from a surface of the sixth portion away from the fourth portion.

[0103] In this embodiment, the fifth portion and the sixth portion of the second cone portion 411 are inserted into the second cone hole 2022 .

[0104] The second transmission assembly 42 includes a cylinder 421 with an axial hole at one end and a hollow interior, a second transmission shaft 422 partially accommodated in the cylinder 421 and with a first end passing through the axial hole and fixedly connected to the tail top cone 41, a second bearing group 423 mounted on the second transmission shaft 422 and fixedly connected to the inner wall of the cylinder 421, and two second limiting rings 424 for limiting the second bearing group 423.

[0105] Preferably, the tail top cone part 41 also includes a third expansion sleeve 414 installed in the second groove, the second transmission shaft 422 passes through the second mounting hole 413 and extends into the second groove 412, and the second transmission shaft 422 is fixedly connected to the tail top cone part 41 through the third expansion sleeve 414.

[0106] In this embodiment, the cylinder 421 includes a circular bottom shell, a cylindrical main body extending from the periphery of the bottom shell, and the axial hole opened in the bottom shell.

[0107] In this embodiment, the end of the second transmission shaft 422 facing the I-shaped wheel is the first end of the second transmission shaft, and the end away from the I-shaped wheel is the second end of the second transmission shaft. The first end of the second transmission shaft 422 passes through the shaft hole and extends out of the cylinder 421 and is connected to the tail top cone 41 through the third expansion sleeve 414. The second end of the second transmission shaft 422 is located in the cylinder 421 and is spaced apart from the end of the main body away from the I-shaped wheel.

[0108] Preferably, the second bearing group 423 includes a fourth bearing 4231 installed at one end of the second transmission shaft 422 adjacent to the tail top cone 41, a fifth bearing installed at one end of the second transmission shaft 422 away from the tail top cone 41, and a sixth bearing 4233 located between the fourth bearing 4231 and the fifth bearing 4232, wherein the fourth bearing 4231 and the fifth bearing 4232 are used to bear the radial force of the second transmission shaft, and the sixth bearing 4233 is used to bear the axial force of the second transmission shaft 422.

[0109] In this embodiment, one end of the fourth bearing abuts against the cylinder (bottom shell) and the other end abuts against the sixth bearing, and one end of the fifth bearing away from the fourth bearing and one end of the sixth bearing away from the fourth bearing are respectively provided with a second limiting ring 424 sleeved on the second transmission shaft.

[0110] It is understandable that, in order to facilitate the installation of the three bearings, a boss may also be machined on the second transmission shaft, so that the three bearings can be easily limited.

[0111] In this embodiment, the fourth bearing and the fifth bearing are cylindrical roller bearings, and the sixth bearing is a four-point contact ball bearing.

[0112] In the present invention, two of the three bearings of the second bearing group are used to bear the radial force of the second transmission shaft, and one of the three bearings is used to bear the axial force of the second transmission shaft. In this way, it is convenient to select the bearings based on the axial force and the radial force respectively, and at the same time, the service life of the second bearing group can be extended.

[0113] Preferably, the second transmission assembly 42 further comprises a second end cover 425 installed on one end of the cylinder 421 close to the tail top cone 41 , and the second end cover 425 protects the cylinder 421 .

[0114] The tail top driving assembly 43 includes a driving unit 431 fixedly connected to the cylinder 421 and capable of driving the cylinder 421 to move back and forth along a first direction, and two connecting members 432 , wherein the first direction is the same as the direction of the central axis of the second transmission shaft 422 .

[0115] Preferably, the driving unit 431 includes a tail plate 4311 connected to one end of the cylinder 421 away from the tail top cone 41, and two first cylinders 4312 arranged at intervals, the piston rods of the two first cylinders 4312 are respectively connected to the two ends of the tail plate 4311, and the extension and retraction of the piston rod of the first cylinder 4312 can drive the second transmission shaft 422 to move back and forth along the first direction through the tail plate 4311 and the cylinder 421 connected to the tail plate 4311.

[0116] The tailgate 4311 includes a tailgate body and two notches 431A formed by being recessed inward from both ends of the tailgate body. The cylinder 421 is connected to the middle portion of the tailgate body.

[0117] In this embodiment, the tail plate body is a plate body whose width in the middle is greater than that at both ends.

[0118] In this embodiment, the two first cylinders 4312 are fixed to the second frame 12 and are located on a side of the tail plate 4311 facing the spool 200 .

[0119] In this embodiment, the first cylinder 4312 is connected to the tail plate 4311 through the connecting member 432 .

[0120] The connecting member 432 includes a first connecting rod 4321 and a second connecting rod 4322 connected to each other, a circular portion 4323 extending outward from the first connecting rod 4321, and a threaded hole opened in the second connecting rod 4322. The first connecting rod 4321 is clamped in the notch 431A and the two sides of the tail plate 4311 are respectively abutted against the circular portion 4323 and the second connecting rod 4322. The piston rod of the first cylinder 4312 is inserted into the threaded hole to form a threaded connection.

[0121] Preferably, the tail top mechanism 40 further includes a flange sleeve 44 sleeved on the outside of the cylinder 421 , and the flange sleeve 44 is fixedly connected to the second frame 12 .

[0122] The flange sleeve 44 is used to limit the back-and-forth movement of the cylinder 421 .

[0123] In the present invention, when the wire-releasing mechanism 30 drives the I-shaped wheel 200 to rotate, under the action of friction, the I-shaped wheel will drive the tail top cone 41 and the second transmission shaft 422 to rotate together.

[0124] Please refer to Figure 5 The locking mechanism 50 includes a limiting rod 51 located on the side of the tail plate 4311 away from the I-shaped wheel 200, and a locking driving assembly 52 for driving the limiting rod 51 to move up and down, and the locking driving assembly 52 is installed on the second frame 12; before the I-shaped wheel 200 releases the wire and after the tail top driving assembly 43 drives the tail top cone 41 to abut against the I-shaped wheel, the locking driving assembly 52 drives the limiting rod 51 to move downward to limit the tail plate 4311, and after the I-shaped wheel 200 completes the wire release, the locking driving assembly 52 drives the limiting rod 51 to move upward to enable the tail plate 4311 to retreat.

[0125] The limiting rod 51 is a cylindrical rod, and its extending direction is the same as the height direction of the second frame 12 .

[0126] The locking drive assembly 52 includes a second cylinder 521 and a first floating joint 522 . One end of the first floating joint 522 is connected to the piston rod of the second cylinder 521 , and the other end of the first floating joint 522 is connected to the limiting rod 51 .

[0127] Preferably, the locking mechanism 50 also includes a connecting plate 53 fixedly connected to the second frame 12, a mounting plate 54 and a mounting block 55 spaced apart from the connecting plate 53, a first clearance hole formed by penetrating the mounting plate 54 along the height direction of the limiting rod 51, and a second clearance hole formed by penetrating the mounting block 55 along the height direction of the limiting rod 51, and the mounting plate 54 is located above the mounting block 55.

[0128] The limiting rod 51 is partially received in the second paving hole and can move in the second paving hole. The second cylinder 521 is installed on the mounting plate 54 , and the piston rod of the second cylinder 521 extends out of the first paving hole and is connected to the limiting rod 51 .

[0129] The pushing mechanism 60 is used to separate the wire placing top cone assembly 31 from the spool 200 .

[0130] The pushing mechanism 60 includes a pushing cylinder 61 installed on the second frame 12 and a pushing block 62 connected to the piston rod of the pushing cylinder 61 , and the pushing block 62 extends out of the second frame 12 .

[0131] After the I-shaped wheel completes wire laying and the tail push mechanism is spaced apart from the I-shaped wheel, the pushing cylinder 61 drives the pushing block 62 to move toward the first side disk 201 and after the pushing block 62 abuts against the first side disk 201, it continues to drive the first side disk 201 to move toward the second frame, so that the I-shaped wheel 200 is disengaged from the wire laying top cone assembly 31.

[0132] Please refer to Figure 5 and Figures 13 to 16 The wire arrangement mechanism 70 includes a guide rod assembly 71, two sliding assemblies 72 installed on the guide rod assembly 71 and capable of sliding back and forth along the guide rod assembly 71, two wire blocking assemblies 73 respectively fixedly connected to the two sliding assemblies 72, and two wire arrangement driving assemblies 74 respectively fixedly connected to the two sliding assemblies 72, wherein the wire arrangement driving assembly 74 is used to drive the sliding assembly 72 to slide back and forth along the guide rod assembly 71, wherein the wire blocking assembly 73 is arranged on the inner side of the sliding assembly 72, and the wire arrangement driving assembly 74 is arranged on the outer side of the sliding assembly 72 and connected to the side shell 13.

[0133] In the present invention, the inner side of the sliding assembly 72 refers to the side of one of the two sliding assemblies facing the other sliding assembly, and the outer side of the sliding assembly 72 refers to the side of one of the two sliding assemblies away from the other sliding assembly.

[0134] The guide rod assembly 71 includes two guide rods spaced apart in the height direction of the side shell, and the guide rods extend in a direction parallel to the center axis of the spool.

[0135] For the convenience of description, the upper guide rod of the two guide rods is named as the first guide rod 711 , and the lower guide rod is named as the second guide rod 712 .

[0136] Preferably, the cable arrangement mechanism 70 further includes a linear bearing 75 installed on the first guide rod 711 , and the linear bearing 75 is located between the sliding assembly 72 and the cable arrangement driving assembly 74 .

[0137] In this embodiment, the linear bearing 75 is used to improve the stability of the sliding assembly 72 sliding along the guide rod assembly 71 .

[0138] Each sliding assembly 72 includes a sliding plate 721 installed on the guide rod assembly 71, two guide cylinders 722 sleeved on each guide rod and fixedly connected to the sliding plate 721, and two reinforcing plates 723 respectively stacked on the upper and lower ends of the sliding plate 721 and fixedly connected to the sliding plate 721. The guide cylinders 722 and the reinforcing plates 723 are respectively arranged on both sides of the sliding plate 721.

[0139] In this embodiment, the guide cylinder 722 is disposed on a side of the sliding plate 721 facing the linear bearing 75 , and the reinforcing plate 723 is disposed on a side of the sliding plate 721 away from the linear bearing 75 .

[0140] The sliding plate 721 includes a sliding plate body, and two first guide rod mounting holes spaced apart at the upper and lower ends of the sliding plate body, each reinforcing plate 723 is provided with a second guide rod mounting hole, and the guide rod passes through the second guide rod mounting hole of the reinforcing plate, the first guide rod mounting hole of the sliding plate 721 and the center hole of the guide tube 722 in sequence and is fixedly connected to the cable drive assembly 74.

[0141] There are two wire blocking assemblies 73, and the two wire blocking assemblies 73 are respectively fixedly connected to the two sliding assemblies 72. When the sliding assemblies 72 slide along the two guide rods, they can drive the wire blocking assemblies 73 to slide together, thereby controlling the arrangement of the welding wire; the movement positions of the two wire blocking assemblies 73 are both within the range corresponding to the wire arrangement gap 131. Each wire blocking assembly 73 includes a bearing mounting plate 731 fixedly connected to the sliding plate 721 and located between the two guide rods, a lever mounting hole penetrating the bearing mounting plate 731 along the height of the side shell, a lever 732 installed in the lever mounting hole, and a limit bearing 733 fixedly arranged on the lower side of the bearing mounting plate 731 and the inner ring of which is connected to the lever 732. When the welding wire abuts against the lever, the limit bearing 733 limits the lever 732 to rotate around the central axis of the lever.

[0142] In this embodiment, the bearing mounting plate 731 is a rectangular plate.

[0143] In this embodiment, the bearing mounting plate 731 and the sliding plate 721 are arranged perpendicularly.

[0144] In this embodiment, the lever 732 is a round rod.

[0145] Preferably, the wire stop assembly 73 further includes a limiting nut 734 installed on one end of the limiting bearing 733 away from the bearing mounting plate 731 and abutting against the limiting bearing 733 , and the shift rod 732 and the limiting bearing 733 are locked by the limiting nut 734 .

[0146] In this embodiment, there are two limit nuts 734 , the first limit nut is installed on the lower side of the limit bearing 733 , and the second limit nut is installed on the lower side of the first limit nut, and the two limit nuts jointly lock the limit bearing 733 and the lever 732 .

[0147] Preferably, each of the wire stopper assemblies 73 further includes a supporting plate 735 stacked on the upper side of the bearing mounting plate 731 and fixedly connected to the bearing mounting plate 731, and a lever clearance hole is provided on the supporting plate corresponding to the position of the lever for the lever to pass through.

[0148] There are two wire arrangement drive assemblies 74, and the two wire arrangement drive assemblies 74 are respectively connected to the two sliding assemblies 72. The wire arrangement drive assembly 74 is used to drive the sliding assembly 72 connected thereto to drive the wire blocking assembly 73 to slide along the guide rod assembly 71, thereby realizing wire arrangement of the welding wire.

[0149] Each of the wire-traversing drive assemblies 74 includes a fixed plate 741 spaced apart on the outside of the sliding assembly 72, a circular hole penetrating the fixed plate 741 along the length direction of the guide rod, and a wire-traversing cylinder 742 installed on the side of the fixed plate 741 away from the sliding plate 721. The piston rod of the wire-traversing cylinder 742 passes through the circular hole and is connected to the sliding plate 721 to drive the sliding assembly 72 to slide along the guide rod assembly 71.

[0150] In the present utility model, the outer side of the sliding component 72 refers to the side of one sliding component of the two sliding components away from the other sliding component.

[0151] In this embodiment, two ends of the guide rod assembly 71 are fixedly connected to two fixing plates 741 of the two cable drive assemblies 74 .

[0152] Preferably, the fixed plate 741 includes a first fixed plate 7411 arranged parallel to and spaced apart from the sliding plate 721, and a second fixed plate 7412 vertically bent and extended from the first fixed plate 7411, the two ends of the two guide rods are respectively fixedly connected to the two first fixed plates 7411, and the second fixed plate 7412 is fixedly connected to the side shell 13.

[0153] In this embodiment, the circular hole is opened in the first fixing plate 7411 .

[0154] The first fixing plate 7411 further includes two guide rod connection holes respectively disposed at the two ends of the circular hole, and the two ends of each guide rod respectively pass through the two guide rod connection holes of the first fixing plate 7411 and are fixedly connected by two nuts.

[0155] Preferably, each of the cable traversing drive assemblies 74 further includes a floating joint 743 , one end of the floating joint 743 is threadedly connected to the piston rod of the cable traversing cylinder, and the other end of the floating joint 743 is threadedly connected to the sliding plate 721 .

[0156] For example, when the welding wire is arranged on the I-shaped wheel according to a preset arrangement method using the I-shaped wheel wire arranging mechanism, the preset arrangement method is: first, the welding wire is evenly arranged on the I-shaped wheel from left to right, then the welding wire is evenly arranged on the I-shaped wheel from right to left, then the welding wire is evenly arranged on the I-shaped wheel from left to right, then the welding wire is evenly arranged on the I-shaped wheel from right to left, and so on, until all the welding wires to be wound are evenly arranged on the I-shaped wheel; the working process of the I-shaped wheel wire arranging mechanism includes: two cylinders drive the sliding assembly to slide to the left extreme position so as to bring the two levers to the position corresponding to the leftmost side of the I-shaped wheel, and the distance between the two levers is within the preset distance. The welding wire is located between the two levers. During the arrangement process, the welding wire abuts against the lever on the right, and then the piston rod of the left cylinder slowly extends, and the piston rod of the right cylinder slowly shortens, so that the arrangement position of the welding wire gradually moves to the right, completing the arrangement from left to right; when the right sliding assembly reaches the right limit position, the welding wire begins to be arranged from right to left. At this time, the welding wire abuts against the lever on the left, and then the piston rod of the left cylinder slowly shortens, and the piston rod of the right cylinder slowly extends, so that the arrangement position of the welding wire gradually moves to the left, completing the arrangement from right to left; ..., and so on, from the arrangement, all the welding wires are evenly distributed on the I-shaped wheel.

[0157] It can be understood that during the arrangement process, the piston rods of the two cylinders extend and retract at the same speed, thereby ensuring uniform arrangement.

[0158] In this embodiment, the preset distance is 10-20 mm.

[0159] In the utility model, friction is generated when the moving welding wire abuts against the lever during the arrangement process. A limit bearing is installed at the lower end of the lever, so that the limit bearing limits the lever to rotate about the central axis of the lever, thereby preventing the lever from damaging the welding wire.

[0160] The utility model provides a wire unwinding method for a welding wire unwinding machine, comprising:

[0161] Step 1: insert the first top cone of the wire-releasing top cone assembly into the first cone hole of the first side plate.

[0162] Preferably, this step also includes inserting the second top cone of the wire-releasing top cone assembly into the socket of the first side plate.

[0163] Step 2, the tail machine driving assembly drives the tail top cone to move toward the direction close to the I-shaped wheel through the second transmission assembly and inserts the tail top cone into the second conical hole of the second side plate, so that the tail top mechanism and the wire release mechanism support and clamp the I-shaped wheel;

[0164] Step 3, the locking drive assembly drives the limit rod to move downward to limit the tail top mechanism;

[0165] Step 4: the wire-releasing driving assembly drives the I-shaped wheel to rotate through the first transmission assembly and the wire-releasing top cone assembly to realize automatic wire-releasing;

[0166] Step 5: After the I-shaped wheel automatically releases the wire, the locking drive assembly drives the limit rod to move upward so that the tail lift mechanism can retreat;

[0167] Step 6: The tail top driving assembly drives the tail top cone member to move away from the I-shaped wheel through the second transmission assembly, and the tail top cone member is spaced apart from the second side plate;

[0168] Step seven, the pushing cylinder drives the pushing block to move toward the first side disk and continues to push the first side disk to move toward the second frame after the pushing block abuts the first side disk, so that the I-shaped wheel is separated from the wire release top cone assembly.

[0169] The welding wire unwinding machine provided by the utility model also has a function of rewinding messy wires. Specifically: when the wire unwinding machine unwinds wires, the I-wheel clamp is arranged between the wire unwinding top cone component and the tail top cone component, and the motor rotates in a first rotation direction, and drives the I-wheel to rotate along the first rotation direction with the center axis of the I-wheel as the axis through the first pulley, the second pulley and the first transmission shaft to realize automatic wire unwinding; when messy wires appear in the wire unwinding process of the wire unwinding mechanism, the motor is rotated in a second rotation direction, and drives the I-wheel to rotate along the second rotation direction with the center axis of the I-wheel as the axis through the first pulley, the second pulley and the transmission shaft to realize reverse wire collection, and in the process of reverse wire collection, the two wire arrangement driving components respectively drive the two sliding components to move back and forth along the guide rod component and drive the two wire blocking components to move along the first wire arrangement direction or the second wire arrangement direction, so that the recovered welding wire is evenly rewound on the I-wheel, and the first rotation direction and the second rotation direction are opposite directions.

[0170] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions and substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A welding wire unwinding machine, used for unwinding wire from an I-shaped wheel, characterized in that: The welding wire unwinding machine comprises: A bearing mechanism, the bearing mechanism comprising a first frame and a second frame arranged at an interval, the I-shaped wheel being located between the first frame and the second frame; A wire-releasing mechanism, wherein the wire-releasing mechanism is installed on the first frame, and the wire-releasing mechanism comprises a wire-releasing top cone assembly extending out of the first frame, a first transmission assembly fixedly connected to the wire-releasing top cone assembly, and a wire-releasing drive assembly fixedly connected to the first transmission assembly, wherein the wire-releasing top cone assembly comprises a first top cone for connecting to one end of the spool, and the wire-releasing drive assembly can drive the spool to rotate through the first transmission assembly and the wire-releasing top cone assembly to realize automatic wire-releasing; A tail top mechanism, the tail top mechanism is installed on the second frame, the tail top mechanism includes a tail top cone extending out of the second frame, a second transmission assembly fixedly connected to the tail top cone, and a tail top drive assembly fixedly connected to the second transmission assembly, the tail top cone is used to be connected to the other end of the I-shaped wheel, and the tail top drive assembly can drive the tail top cone to move back and forth along the direction of the central axis of the I-shaped wheel through the second transmission assembly to change the distance between the tail top cone and the I-shaped wheel.

2. The welding wire unwinding machine according to claim 1, characterized in that: The wire-releasing top cone assembly also includes a fixed cone plate, positioning holes opened at both ends of the fixed cone plate, and two second top cones, wherein the first top cone is arranged in the middle of the fixed cone plate and is fixedly connected to the fixed cone plate, and the two second top cones are respectively installed in the two positioning holes and are fixedly connected to the fixed cone plate, and the second top cones are used to be inserted into the socket of the side plate of the I-shaped wheel.

3. The welding wire unwinding machine according to claim 2, characterized in that: The second top cone includes a mounting seat installed in the positioning hole, a through hole formed through the mounting seat, a cover plate covering the mounting seat at one end away from the I-shaped wheel and fixedly connected to the mounting seat, a cone head partially accommodated in the through hole, and a spring member clamped between the cone head and the cover plate, the cone head includes a cylindrical cone seat, a head connected to the cone seat and smaller in size than the cone seat, and a mounting groove formed by a surface of the cone seat away from the head, the cone seat is accommodated in the through hole and the head extends out of the through hole, the head is used to be inserted into the jack of the side plate of the I-shaped wheel, and the two ends of the spring member are respectively abutted against the bottom of the mounting groove and the cover plate.

4. The welding wire unwinding machine according to claim 1, characterized in that: The first transmission assembly includes a flange cylinder, a first transmission shaft partially accommodated in the flange cylinder and extending out of the flange cylinder at both ends, and a first bearing group installed on the first transmission shaft and located in the flange cylinder. The flange cylinder is connected to the first frame, and the first extending end of the first transmission shaft is connected to the wire release top cone assembly.

5. The welding wire unwinding machine according to claim 4, characterized in that: The first bearing group includes a first bearing installed on one end of the first transmission shaft close to the wire-releasing top cone assembly, a second bearing installed on one end of the first transmission shaft away from the wire-releasing top cone assembly, and a third bearing located between the first bearing and the second bearing, wherein the first bearing and the second bearing are used to bear the radial force of the first transmission shaft, and the third bearing is used to bear the axial force of the first transmission shaft.

6. The welding wire unwinding machine according to claim 4, characterized in that: The wire release drive assembly includes a motor, a first pulley mounted on the output shaft of the motor, a second pulley mounted on the second protruding end of the first transmission shaft and fixedly connected to the first transmission shaft, a belt, and a brake unit sleeved on the first transmission shaft and connected to the first transmission shaft, the second pulley is connected to the first pulley through the belt and the diameter of the second pulley is larger than that of the first pulley, and the brake unit is arranged between the second pulley and the flange cylinder.

7. The welding wire unwinding machine according to any one of claims 1 to 6, characterized in that: The second transmission assembly includes a cylinder with an axial hole at the front end and a hollow interior, a second transmission shaft partially accommodated in the cylinder and with the first end passing through the axial hole and fixedly connected to the tail top cone, and a second bearing group installed on the second transmission shaft and fixedly connected to the inner wall of the cylinder, the second bearing group includes fourth bearings respectively installed at one end of the second transmission shaft adjacent to the tail top cone, a fifth bearing installed at one end of the second transmission shaft away from the tail top cone, and a sixth bearing located between the fourth bearing and the fifth bearing, wherein the fourth bearing and the fifth bearing are used to bear the radial force of the second transmission shaft, and the sixth bearing is used to bear the axial force of the second transmission shaft.

8. The welding wire unwinding machine according to claim 7, characterized in that: The tail top driving assembly includes a driving unit which is fixedly connected to the cylinder and can drive the cylinder to move back and forth along the direction of the center axis of the I-wheel. The driving unit includes a tail plate connected to one end of the cylinder away from the tail top cone, and two first cylinders arranged at intervals. The piston rods of the two first cylinders are respectively connected to the two ends of the tail plate. The extension and retraction of the piston rod of the first cylinder can drive the second transmission shaft to move back and forth along the direction of the center axis of the I-wheel through the tail plate and the cylinder connected to the tail plate.

9. The welding wire unwinding machine according to claim 8, characterized in that: The two first cylinders are fixedly mounted on the second frame and are located on a side of the tail plate facing the I-shaped wheel, the tail plate includes two notches formed by being recessed inwardly from both ends of the tail plate, the tail top drive assembly also includes two connecting members for connecting the piston rod of the first cylinder and the tail plate, the connecting members include a first connecting rod and a second connecting rod connected to each other, a circular ring portion extending outwardly from the first connecting rod, and a threaded hole opened in the second connecting rod, the first connecting rod is clamped in the notch and the two sides of the tail plate are respectively abutted against the circular ring portion and the second connecting rod, and the piston rod of the first cylinder is inserted into the threaded hole to form a threaded connection.

10. The welding wire unwinding machine according to claim 8, characterized in that: The welding wire unwinding machine also includes a locking mechanism for limiting the tail top mechanism, the locking mechanism includes a locking drive assembly installed on the second frame, and a limiting rod fixedly connected to the locking drive assembly, the locking drive assembly can drive the limiting rod to move downward along the height direction of the second frame to limit the tail plate or move upward to allow the tail plate to move backward.

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