Device for preventing welding wire in wire barrel from being wound

Abstract

A device for preventing winding of welding wires in a wire barrel belongs to the technical field of welding wires and comprises a base, a supporting seat is fixedly mounted in the middle of the top end of the base, a worm gear is fixedly mounted at the top end of the supporting seat, the top end of the base is vertically and rotatably connected with a connecting shaft, and the connecting shaft upwards penetrates through the supporting seat and the worm gear; a welding wire is vertically arranged in the transmission unit in a penetrating manner, and the transmission unit can revolve relative to the worm gear through upward lifting movement of the welding wire, so that the rotating force can be automatically removed in the welding wire lifting process. According to the device, the rotating force can be automatically removed in the welding wire pulling and lifting process, the winding phenomenon of the welding wire caused by the rotating force is effectively avoided, the welding wire can be normally and orderly taken and used, power can be provided for the device by means of the welding wire moving upwards, and therefore the rotating force of the welding wire is removed, the effect of extra driving devices such as a motor is not needed, and the labor intensity of workers is reduced. And more energy is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding wires, and particularly relates to a device for preventing the welding wire in a wire barrel from winding. Background Art

[0002] A welding wire is a welding material in the form of a filler metal or a metal wire used for both filling and conducting electricity. In gas welding and tungsten inert gas arc welding, the welding wire is used as a filler metal; in submerged arc welding, electroslag welding, and other gas metal arc welding processes, the welding wire is both a filler metal and a conductive electrode.

[0003] Existing welding wires are mainly divided into rod-shaped welding wires and welding wire coils. Among them, the welding wire coil is placed in a wire barrel. When the welding wire of the welding wire coil is pulled upward from the wire barrel, due to the curvature of the welding wire itself during winding, the welding wire is prone to winding during the upward pulling process, affecting the normal use of the welding wire. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art that when the welding wire of the welding wire coil is pulled upward from the wire barrel, due to the curvature of the welding wire itself during winding, the welding wire is prone to winding during the upward pulling process, affecting the normal use of the welding wire, etc., the utility model provides a device for preventing the welding wire in a wire barrel from winding, which can automatically remove the rotational force during the pulling process of the welding wire, effectively avoid the winding phenomenon caused by the rotational force of the welding wire, realize the normal and orderly use of the welding wire, and rely on the upward moving welding wire to provide power for the device, thereby realizing the removal of the rotational force of the welding wire without the need for additional driving devices such as motors. The specific technical solution is as follows:

[0005] A device for preventing the welding wire in a wire barrel from winding includes a base. A support seat is fixedly installed in the middle of the top end of the base. A worm gear is fixedly installed at the top end of the support seat. A connecting shaft is vertically and rotatably connected to the top end of the base, and the connecting shaft penetrates upward through the support seat and the worm gear. A transmission unit is fixedly connected to the top end of the connecting shaft. A welding wire vertically penetrates through the transmission unit. The transmission unit revolves around the worm gear relative to the upward pulling movement of the welding wire, so as to automatically remove the rotational force during the pulling process of the welding wire.

[0006] In the above technical solution, the transmission unit includes a connecting seat fixedly installed at the top end of the connecting shaft. Two mounting seats are symmetrically fixedly installed on the front and rear sides of the left side of the bottom end of the connecting seat. A worm is rotatably connected between the two mounting seats, and the worm penetrates through the outer wall of the front mounting seat. A first gear is fixedly installed at the front end of the worm.

[0007] Among them, the worm is meshed with the side wall of the worm gear.

[0008] In the above technical solution, a bracket is fixedly installed on the front side wall of the connecting seat. A first shaft body is rotatably connected to the left end of the bracket, and a planetary gear is fixedly installed on the first shaft body;

[0009] Among them, the planetary gear is meshed and connected with the first gear.

[0010] In the above technical solution, a housing is fixedly installed on the top of the connecting seat. The housing is divided into a first split body and a second split body. The first split body and the second split body are butted to form a housing with a hollow inner cavity. The first split body and the second split body are respectively fixedly installed on the left and right sides of the top of the connecting seat.

[0011] In the above technical solution, a second shaft body is rotatably connected in the first split body from front to back. The second shaft body penetrates through the first split body forward and is fixedly connected with a second gear. A guide wheel and a third gear are fixedly installed on the second shaft body. The guide wheel is located inside the first split body, and the third gear is located at the rear of the first split body;

[0012] Among them, the second gear is meshed and connected with the planetary gear.

[0013] In the above technical solution, a third shaft body is rotatably connected in the second split body from front to back. A pressing wheel is fixedly installed on the third shaft body. The rear end of the third shaft body penetrates through the rear side of the second split body and is fixedly installed with a fourth gear. The guide wheel and the pressing wheel are arranged in a left-right corresponding manner. The welding wire penetrates vertically between the guide wheel and the pressing wheel, and the guide wheel and the pressing wheel respectively press the side wall of the welding wire. The pressing wheel is located inside the second split body, and the fourth gear is located at the rear of the second split body;

[0014] Among them, the fourth gear is meshed and connected with the third gear.

[0015] In the above technical solution, a tensioning unit is arranged on the first split body and the second split body. The tensioning unit includes a pull plate rotatably connected to the top of the first split body. The pull plate is provided with a through cavity from top to bottom. The left end of the pull plate is rotatably connected to the first split body. A pin body is vertically installed at the right end of the pull plate. A spring is sleeved on the pin body. A butterfly nut is threadedly sleeved on the pin body. A fixed block is installed on the top of the second split body. The pin body is embedded in the inner cavity of the fixed block at the top of the second split body, and the butterfly nut rotates and fits on the right side wall of the fixed block at the top of the second split body. The spring is arranged between the fixed block at the top of the second split body and the pull plate, and the left end of the spring is fixedly connected to the outer wall of the pin body.

[0016] In the above technical solution, a first guiding nozzle and a second guiding nozzle are sleeved on the welding wire, the first guiding nozzle is arranged above the pulling plate, the second guiding nozzle is arranged below the base, and a pressing block is sleeved on the outer wall of the first guiding nozzle;

[0017] Wherein, the pressing block is adapted to the through cavity shape of the pulling plate.

[0018] In the above technical solution, a protective cover is arranged on the base, and through holes for the welding wire to penetrate are respectively arranged at the top and bottom ends of the protective cover.

[0019] In the above technical solution, the welding wire sequentially penetrates through the second guiding nozzle, the connecting shaft, the housing, and the first guiding nozzle from bottom to top, and is located between the guiding wheel and the pressing wheel.

[0020] A device for preventing the welding wire in the wire barrel from winding according to the present utility model has the following beneficial effects compared with the prior art:

[0021] First, regarding the problem that due to the curvature of the welding wire wound on the welding wire reel, the welding wire is prone to winding during the upward pulling process from the wire barrel, affecting the normal use of the welding wire. The present utility model uses the upward moving welding wire to cooperate with the second shaft body, the second gear, the guiding wheel, and the pressing wheel to drive the rotation of the second shaft body and the second gear, and then drive the planet gear, the first gear, and the worm to rotate. Furthermore, the worm is realized to revolve along the surface of the worm wheel, automatically removing the rotational force during the wire pulling process, effectively avoiding the winding phenomenon caused by the rotational force of the welding wire, and realizing the normal and orderly use of the welding wire;

[0022] Second, the present utility model automatically drives the guiding wheel and the pressing wheel to rotate synchronously outward by the upward moving welding wire, and drives the second gear, the second shaft body, and the third gear to rotate counterclockwise synchronously, driving the third shaft body, the pressing wheel, and the fourth gear to rotate clockwise synchronously. Relying on the upward moving welding wire can provide power for the device, thus realizing the removal of the rotational force of the welding wire, without the need for the action of additional driving devices such as motors, and saving more energy;

[0023] Third, the present utility model can further guide and limit the position of the welding wire through the first guiding nozzle and the second guiding nozzle respectively arranged at the upper and lower ends, avoiding the welding wire from derailing due to excessive movement amplitude, and can also guide the upper and lower ends of the welding wire respectively to ensure that the upper and lower ends of the welding wire are perpendicular;

[0024] Fourth, through the connection between the base and the existing wire barrel, the present utility model can realize the assembly connection of the whole device on the wire barrel, and then complete the stable connection of the whole device on the wire barrel;

[0025] 5. The first and second parts of the utility model are separately arranged to provide independent space for the installation of various components. By arranging a pull plate, a pin body, a spring and a butterfly nut, the first and second parts can be further fastened and connected to ensure that the first and second parts form a stable whole and the overall stability of the equipment is ensured. At the same time, the first and second parts are tightly connected by the pull plate and the butterfly nut to increase the clamping force of the clamping wheel and the guide wheel on the welding wire, so that the welding wire can generate friction to drive the guide wheel and the clamping wheel to rotate, so as to realize the transmission of other subsequent components;

[0026] In summary, the utility model can realize automatic unloading of the rotational force during the pulling process of the welding wire, effectively avoid the entanglement of the welding wire caused by the rotational force, realize the normal and orderly use of the welding wire, and rely on the upward moving welding wire to provide power for the device, thereby realizing the unloading of the rotational force of the welding wire, without the need for additional motors or other driving devices, and saving more energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of the base of the utility model;

[0028] Figure 2 This is an axonometric view of the second gear of the utility model;

[0029] Figure 3 It is a right side view of the connecting shaft of the utility model;

[0030] Figure 4 This is a right side cross-sectional view of the first split body of the utility model

[0031] Figure 5 This is a schematic diagram of the main structure of the bracket of the utility model;

[0032] Figure 6 It is a rear view structural schematic diagram of the fourth gear of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the protective cover of the utility model;

[0034] Figures 1 to 7 Among them, 1. base, 2. support seat, 3. worm gear, 4. connecting shaft, 5. connecting seat, 6. mounting seat, 7. worm, 8. first gear, 9. bracket, 10. first shaft, 11. planetary gear, 12. shell, 121. first split body, 122. second split body, 13. second shaft, 14. second gear, 15. guide wheel, 16. third gear, 17. third shaft, 18. clamping wheel, 19. fourth gear, 20. pull plate, 21. pin body, 22. spring, 23. butterfly nut, 24. first guide nozzle, 25. pressure block, 26. welding wire, 27. second guide nozzle, 28. protective cover. DETAILED DESCRIPTION

[0035] The following further describes the present utility model in conjunction with specific implementation cases and the appended Figures 1 to 7 drawings, but the present utility model is not limited to these embodiments.

[0036] Refer to Figures 1 to 7 As shown, a device for preventing the welding wire in the wire barrel from winding includes a base 1. In the middle of the top end of the base 1, a support seat 2 is fixedly installed. On the top end of the support seat 2, a worm gear 3 is fixedly installed. Vertically on the top end of the base 1 and rotatably connected through a bearing is a connecting shaft 4, that is, the connecting shaft 4 can rotate circumferentially relative to the base 1, and the connecting shaft 4 penetrates upward through the support seat 2 and the worm gear 3. At the top end of the connecting shaft 4, a transmission unit is fixedly connected. Vertically penetrating through the transmission unit is a welding wire 26. Through the upward pulling movement of the welding wire 26, the transmission unit revolves relative to the worm gear 3, so as to automatically remove the rotational force during the pulling process of the welding wire 26.

[0037] Specifically, mainly refer to Figure 1 、 Figure 2 and Figure 3 As shown, the transmission unit includes a connecting seat 5 fixedly installed at the top end of the connecting shaft 4. On the left side of the bottom end of the connecting seat 5, two mounting seats 6 are symmetrically fixedly installed front and back. Between the two mounting seats 6, a worm 7 is rotatably connected through a bearing, and the worm 7 penetrates through the outer wall of the front mounting seat 6. At the front end of the worm 7, a first gear 8 is fixedly installed. Among them, the worm 7 is meshed and connected with the side wall of the worm gear 3. When the first gear 8 is forced to rotate, the worm 7 can be driven to rotate synchronously, and then the worm 7 revolves along the outer wall of the worm gear 3, so as to realize the synchronous revolution of the mounting seat 6, the connecting seat 5 and other components above the connecting seat 5, so as to realize the rotation and release of the welding wire.

[0038] Mainly refer to Figure 2 As shown, a bracket 9 is fixedly installed on the front side wall of the connecting seat 5. At the left end of the bracket 9, a first shaft body 10 is rotatably connected through a bearing. On the first shaft body 10, a planetary gear 11 is fixedly installed. Among them, the planetary gear 11 is meshed and connected with the first gear 8. When the planetary gear 11 is forced to rotate, the first shaft body 10 can be driven to rotate synchronously, and at the same time, the first gear 8 is driven to rotate.

[0039] Mainly refer to Figure 2 and Figure 5As shown in the figure, a housing 12 is fixedly installed at the top of the connecting seat 5. The housing 12 is divided into a first split body 121 and a second split body 122. The first split body 121 and the second split body 122 are butted to form a housing 12 with a hollow inner cavity. The first split body 121 and the second split body 122 are respectively fixedly installed on the left and right sides of the top of the connecting seat 5. The first split body 121 and the second split body 122 are separately arranged to provide independent spaces for the installation of various components. By rotating the second gear 14 counterclockwise, the planet gear 11 meshed with its outer wall rotates clockwise, and then the first gear 8 meshed with the outer wall of the planet gear 11 rotates counterclockwise, thereby realizing the counterclockwise rotation of the worm 7. While the worm 7 rotates counterclockwise, the worm 7 revolves along the side wall of the worm gear 3 to drive the connecting shaft 4 to drive the connecting seat 5, the first split body 121, the second split body 122 and the welding wire 26 connected to the top to rotate. Thus, the rotational force can be automatically removed during the upward lifting of the welding wire 26, effectively avoiding the winding phenomenon of the welding wire caused by the rotational force.

[0040] Refer mainly to Figure 2 and Figure 4 As shown in the figure, a second shaft body 13 is rotatably connected to the first split body 121 from front to back through a bearing, and the second shaft body 13 penetrates through the first split body 121 forward and is fixedly connected to a second gear 14. A guide wheel 15 and a third gear 16 are fixedly installed on the second shaft body 13. The guide wheel 15 is located inside the first split body 121, and the third gear 16 is located at the rear side of the first split body 121. Among them, the second gear 14 is meshed with the planet gear 11. When the guide wheel 15 is forced to rotate, it can drive the second shaft body 13 and the second gear 14 and the third gear 16 to rotate synchronously. By rotating the second gear 14, the planet gear 11 is driven to rotate, and thus the final rotation of the worm 7 is realized.

[0041] Refer mainly to Figure 1 , Figure 2 , Figure 5 and Figure 6As shown in the figure, a third shaft body 17 is rotatably connected in the second split body 122 from front to back by means of a bearing. A pressing wheel 18 is fixedly installed on the third shaft body 17. The rear end of the third shaft body 17 penetrates through the rear side of the second split body 122 and a fourth gear 19 is fixedly installed thereon. The guiding wheel 15 and the pressing wheel 18 are arranged corresponding to each other left and right. The welding wire 26 penetrates vertically between the guiding wheel 15 and the pressing wheel 18, and the guiding wheel 15 and the pressing wheel 18 respectively press against the side wall of the welding wire 26. The pressing wheel 18 is located inside the second split body 122, and the fourth gear 19 is located at the rear side of the second split body 122. When the pressing wheel 18 is forced to rotate, it can drive the third shaft body 17 to drive the fourth gear 19 to rotate synchronously. As the welding wire 26 is pulled upward, it causes the guiding wheel 15 to rotate counterclockwise and the pressing wheel 18 to rotate clockwise. The counterclockwise rotating guiding wheel 15 drives the second shaft body 13, the second gear 14, and the third gear 16 to rotate counterclockwise synchronously. At the same time, the clockwise rotating pressing wheel 18 drives the third shaft body 17 and the fourth gear 19 to rotate clockwise synchronously. Among them, the fourth gear 19 is meshed and connected with the third gear 16, thereby ensuring that when one of the guiding wheel 15 or the pressing wheel 18 rotates, it can drive the other to rotate relatively forcedly. That is, when the welding wire 26 moves upward to drive one of the guiding wheel 15 or the pressing wheel 18 to rotate, the relative rotation of the third gear 16 and the fourth gear 19 can be realized, so as to realize the counterclockwise rotation of the second gear 14.

[0042] Mainly refer to Figure 2 、 Figure 3 and Figure 5 As shown in the figure, a tensioning unit is arranged on the first split body 121 and the second split body 122. The tensioning unit includes a pull plate 20 rotatably connected to the top end of the first split body 121 by means of a pin shaft. The pull plate 20 is provided with a through cavity from top to bottom. The left end of the pull plate 20 is rotatably connected to the first split body 121. A pin body 21 is vertically installed at the right end of the pull plate 20. A spring 22 is sleeved on the pin body 21. A wing nut 23 is threadedly sleeved on the pin body 21. A fixing block is installed at the top end of the second split body 122. The pin body 21 is embedded in the inner cavity of the fixing block at the top end of the second split body 122, and the wing nut 23 is rotatably attached to the right side wall of the fixing block at the top end of the second split body 122. The spring 22 is arranged between the fixing block at the top end of the second split body 122 and the pull plate 20, and the left end of the spring 22 is fixedly connected to the outer wall of the pin body 21. By rotating the wing nut 23 to make it close to and fit the right side wall of the fixing block at the top end of the second split body 122, it can cause the pull plate 20 to form a stable connection relationship between the first split body 121 and the second split body 122, making the connection between the first split body 121 and the second split body 122 tighter, thereby increasing the pressing force between the pressing wheel 18 arranged in the second split body 122 and the guiding wheel 15 arranged in the first split body 121, making the pressing wheel 18 and the guiding wheel 15 tightly press against the side wall of the welding wire 26, and further ensuring that the pressing wheel 18 and the guiding wheel 15 can be driven to rotate in corresponding directions respectively during the subsequent rising process of the welding wire.

[0043] Main reference Figures 1 to 4 As shown, a first guiding nozzle 24 and a second guiding nozzle 27 are sleeved on the welding wire 26. The first guiding nozzle 24 is arranged above the pulling plate 20, and the second guiding nozzle 27 is arranged below the base 1. By respectively arranging the first guiding nozzle 24 and the second guiding nozzle 27 at the upper and lower ends, the position of the welding wire 26 can be further guided and limited, avoiding derailment of the welding wire 26 due to excessive movement amplitude, and the upper and lower ends of the welding wire 26 can be respectively guided to ensure that the ends of the upper and lower ends of the welding wire 26 are kept vertical. A pressing block 25 is sleeved on the outer wall of the first guiding nozzle 24. Among them, the pressing block 25 is adapted to the cavity shape of the pulling plate 20. The pressing block 25 can be divided into two installation states. In one installation state, refer to Figure 2 As shown, at this time, the pressing block 25 is disengaged from the inner cavity of the pulling plate 20 upwards. The positioning of the pressing block 25 and the first guiding nozzle 24 can be realized by means of the connection and installation of the pressing block 25 with other devices. In the other state, the pressing block 25 is embedded in the through cavity of the pulling plate 20. The indirect positioning of the first guiding nozzle 24 at the pulling plate 20 can be realized by means of the pressing block 25. The above two states can be installed as required, and no excessive limitation is imposed on this here.

[0044] In addition, refer to Figure 7 As shown, a protective cover 28 is covered on the base 1. Through holes for the welding wire 26 to penetrate are respectively arranged at the top and bottom ends of the protective cover 28. The protective cover can prevent dust from entering the interior of the device.

[0045] Main reference Figure 4 As shown, the welding wire 26 sequentially penetrates through the second guiding nozzle 27, the connecting shaft 4, the housing 12, and the first guiding nozzle 24 from bottom to top, and is located between the guiding wheel 15 and the pressing wheel 18. By means of an external force to drive the welding wire 26 to move upwards, since the guiding wheel 15 and the pressing wheel 18 are respectively located on the left and right sides of the welding wire 26, and the guiding wheel 15 and the pressing wheel 18 tightly press and hold the welding wire 26, therefore, as the welding wire 26 is pulled upwards, it drives the guiding wheel 15 to rotate counterclockwise and causes the pressing wheel 18 to rotate clockwise. The counterclockwise rotating guiding wheel 15 drives the second shaft body 13, the second gear 14, and the third gear 16 to rotate counterclockwise synchronously. And during the pulling process of the welding wire 26, enough space is left in the second guiding nozzle 27, the connecting shaft 4, the housing 12, and the first guiding nozzle 24 for the welding wire 26 to pass through.

[0046] The working principle of a device for preventing the welding wire in the wire barrel from winding in this embodiment is as follows:

[0047] The base 1 is installed on the existing welding wire barrel by bolts to realize the connection between the device and the welding wire barrel as a whole; the welding wire 26 is driven upward by external force, because the guide wheel 15 and the clamping wheel 18 are respectively located on the left and right sides of the welding wire 26, and the guide wheel 15 and the clamping wheel 18 tightly press the welding wire 26, so as the welding wire 26 is pulled upward, the guide wheel 15 is driven to rotate counterclockwise and the clamping wheel 18 is prompted to rotate clockwise, and the counterclockwise rotating guide wheel 15 drives the second shaft 13, the second gear 14, and the third gear 16 to rotate counterclockwise synchronously, and at the same time, the clockwise rotating clamping wheel 18 drives the third shaft 17 and the fourth gear 19 to rotate clockwise synchronously; in addition, the third gear 16 and the fourth gear 19 are meshed and connected, when one of the guide wheel 15 or the clamping wheel 18 rotates, it can drive the other to be forced to rotate relatively, that is, through the upward movement When the welding wire 26 drives one of the guide wheel 15 or the pressure wheel 18 to rotate, the third gear 16 and the fourth gear 19 can be rotated relative to each other, so as to realize the counterclockwise rotation of the second gear 14; the counterclockwise rotation of the second gear 14 causes the planetary gear 11 meshing with its outer wall to rotate clockwise, thereby causing the first gear 8 meshing with the outer wall of the planetary gear 11 to rotate counterclockwise, thereby realizing the counterclockwise rotation of the worm 7. While the worm 7 rotates counterclockwise, since the position of the worm wheel 3 remains unchanged, under the reaction force of the worm wheel 3, the worm 7 is realized to revolve along the side wall of the worm wheel 3, so as to cause the connecting shaft 4 to drive the connecting seat 5, the first split body 121, the second split body 122 and the welding wire 26 connected to the top to rotate, thereby realizing the automatic unloading of the rotation force during the upward pulling of the welding wire 26, and effectively avoiding the winding phenomenon of the welding wire caused by the rotation force;

[0048] The utility model can realize automatic unloading of the rotational force during the pulling process of the welding wire 26, effectively avoid the entanglement of the welding wire caused by the rotational force, realize the normal and orderly use of the welding wire, and rely on the welding wire 26 moving upward to provide power for the device, thereby realizing the unloading of the rotational force of the welding wire 26, without the need for additional driving devices such as motors, etc., and saving more energy.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for preventing welding wire from winding in a wire barrel, comprising a base (1), characterized in that: A support seat (2) is fixedly mounted in the middle of the top of the base (1), a worm gear (3) is fixedly mounted on the top of the support seat (2), a connecting shaft (4) is vertically and rotatably connected to the top of the base (1), and the connecting shaft (4) passes through the support seat (2) and the worm gear (3) upwards, a transmission unit is fixedly connected to the top of the connecting shaft (4), a welding wire (26) is vertically passed through the transmission unit, and the transmission unit is caused to revolve relative to the worm gear (3) by pulling the welding wire (26) upwards, so as to automatically remove the rotational force during the pulling process of the welding wire (26).

2. The device for preventing welding wire from winding in a wire barrel according to claim 1, characterized in that: The transmission unit comprises a connecting seat (5) fixedly mounted on the top end of the connecting shaft (4); two mounting seats (6) are fixedly mounted on the left side of the bottom end of the connecting seat (5) in a front-to-back symmetrical manner; a worm (7) is rotatably connected between the two mounting seats (6); the worm (7) passes through the outer wall of the mounting seat (6) on the front side; and a first gear (8) is fixedly mounted on the front end of the worm (7); The worm (7) is meshingly connected with the side wall of the worm wheel (3).

3. A device for preventing welding wire from winding in a wire barrel according to claim 2, characterized in that: A bracket (9) is fixedly mounted on the front side wall of the connecting seat (5); a first shaft (10) is rotatably connected to the left end of the bracket (9); and a planetary gear (11) is fixedly mounted on the first shaft (10); Wherein, the planetary gear (11) is meshingly connected with the first gear (8).

4. A device for preventing welding wire from winding in a wire barrel according to claim 3, characterized in that: A shell (12) is fixedly mounted on the top of the connection seat (5); the shell (12) is divided into a first sub-body (121) and a second sub-body (122); the first sub-body (121) and the second sub-body (122) are butt-jointed to form a shell (12) with a hollow inner cavity; the first sub-body (121) and the second sub-body (122) are respectively fixedly mounted on the left and right sides of the top of the connection seat (5).

5. The device for preventing welding wire from winding in a wire barrel according to claim 4, characterized in that: A second shaft (13) is connected to the first split body (121) so as to rotate from front to rear, and the second shaft (13) penetrates the first split body (121) toward the front side and is fixedly connected to a second gear (14), a guide wheel (15) and a third gear (16) are fixedly mounted on the second shaft (13), the guide wheel (15) is located in the first split body (121), and the third gear (16) is located at the rear side of the first split body (121); Wherein, the second gear (14) is meshingly connected with the planetary gear (11).

6. The device for preventing welding wire from winding in a wire barrel according to claim 5, characterized in that: A third shaft (17) is connected to the second split body (122) so as to rotate from front to rear, a clamping wheel (18) is fixedly mounted on the third shaft (17), a rear end portion of the third shaft (17) passes through the rear side of the second split body (122) and a fourth gear (19) is fixedly mounted thereon, the guide wheel (15) and the clamping wheel (18) are arranged correspondingly on the left and right sides, the welding wire (26) passes through between the guide wheel (15) and the clamping wheel (18) in a vertical direction, and the guide wheel (15) and the clamping wheel (18) are respectively pressed against the side walls of the welding wire (26), the clamping wheel (18) is located in the second split body (122), and the fourth gear (19) is located on the rear side of the second split body (122); Wherein, the fourth gear (19) is meshingly connected with the third gear (16).

7. The device for preventing welding wire from winding in a wire barrel according to claim 6, characterized in that: The first sub-body (121) and the second sub-body (122) are provided with a tensioning unit, and the tensioning unit includes a pull plate (20) rotatably connected to the top of the first sub-body (121), and the pull plate (20) is provided with a through cavity from top to bottom, and the left end of the pull plate (20) is rotatably connected to the first sub-body (121), and the right end of the pull plate (20) is vertically installed with a pin body (21), and a spring (22) is sleeved on the pin body (21), and a threaded part (22) is provided on the pin body (21). A butterfly nut (23) is sleeved thereon, a fixing block is installed at the top of the second split body (122), the pin body (21) is embedded in the inner cavity of the fixing block at the top of the second split body (122), and the butterfly nut (23) is rotatably fitted to the right side wall of the fixing block at the top of the second split body (122), the spring (22) is arranged between the fixing block at the top of the second split body (122) and the pull plate (20), and the left end of the spring (22) is fixedly connected to the outer wall of the pin body (21).

8. The device for preventing welding wire from winding in a wire barrel according to claim 7, characterized in that: The welding wire (26) is sleeved with a first guide nozzle (24) and a second guide nozzle (27), wherein the first guide nozzle (24) is arranged above the pulling plate (20), and the second guide nozzle (27) is arranged below the base (1), and a pressure block (25) is sleeved on the outer wall of the first guide nozzle (24); Wherein, the pressing block (25) is adapted to the shape of the through cavity of the pulling plate (20).

9. The device for preventing welding wire from winding in a wire barrel according to claim 8, characterized in that: A protective cover (28) is provided on the base (1), and through holes for the welding wire (26) to pass through are respectively provided at the top and bottom ends of the protective cover (28).

10. The device for preventing welding wire from winding in a wire barrel according to claim 9, characterized in that: The welding wire (26) passes through the second guide nozzle (27), the connecting shaft (4), the housing (12), and the first guide nozzle (24) in sequence from bottom to top, and is located between the guide wheel (15) and the clamping wheel (18).

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