A welding wire feeder

Abstract

The utility model relates to welding rod traction equipment technical field, especially in kind of welding rod wire feeder, including frame, at least one group with rotatable mode set up on the frame on the traction wheel, and form the traction area between the traction wheel, the utility model still includes the cleaning device of installing on the frame and being located the upstream of traction area, wherein, the cleaning device of the utility model includes the feeder that two ends open setting and supply welding rod wire to pass, and the dust absorption pipe that is connected with feeder and installs the dust absorption source on the frame, the utility model passes through the feeder when the traction welding rod wire, and the dust absorption pipe carries out dust absorption treatment in the feeder to the welding rod wire, thereby avoiding the scratch of the traction wheel to the welding rod wire when traction.

Description

Technical Field

[0001] This utility model relates to the technical field of welding electrode traction equipment, and in particular to a welding electrode wire feeder. Background Technology

[0002] Welding electrodes are one of the materials used in the welding process. They can melt and fill the joint of the workpieces during gas welding or electric welding to connect the two parts together.

[0003] Currently, the production of welding electrodes requires the steps of shearing, coating, and drying. Shearing refers to the process of using a traction machine (also called a wire feeder) to pull the welding electrode wire to the shearing device for cutting. The shearing step mainly involves cutting the welding electrode wire into metal strips (also called welding electrode blanks) of a certain length. Nowadays, the traction of the welding electrode wire is carried out by two relatively rotating traction wheels. During traction, the traction wheels contact the surface of the welding electrode wire and drag the welding electrode wire to move. However, due to the influence of the workshop environment, when impurities in the air (some hard particles, such as metal shavings) adhere to the welding electrode wire, the traction wheels can easily damage the outer wall of the welding electrode wire through these impurities when they pull the welding electrode wire, or even cause wear to the traction wheels.

[0004] Therefore, necessary improvements need to be made to the existing electrode feeder. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a welding electrode wire feeder, which aims to solve the problems mentioned in the background technology.

[0006] The technical solution of this utility model is implemented as follows: a welding electrode wire feeder includes a frame and at least one set of traction wheels rotatably mounted on the frame, with a traction zone formed between the traction wheels. This utility model also includes a cleaning device installed on the frame and located upstream of the traction zone.

[0007] The cleaning device includes at least a feeder with open ends for the welding wire to pass through, a suction pipe connected to the feeder, and a suction source mounted on the frame.

[0008] Preferably, the dust source is a vacuum cleaner mounted on a frame.

[0009] By adopting the above technical solution:

[0010] This invention adds a cleaning device to the existing wire feeder. The cleaning device is installed upstream of the traction wheel of the wire feeder. When the welding wire is pulled by the traction wheel, it first passes through the cleaning device and then through the traction wheel. The welding wire that passes through the cleaning device is cleaned by the dust suction pipe to reduce impurities on the welding wire, thereby avoiding damage to the welding wire caused by these impurities during the traction process.

[0011] In this invention, during the cleaning process, a vacuum cleaner is activated, and the vacuum hose is used to vacuum the welding rods passing through the feeder.

[0012] Preferably, the feeder includes:

[0013] The feeding pipe is mounted on the frame via a bracket;

[0014] The dust suction chamber is formed inside the feed pipe and extends axially through the feed pipe;

[0015] It also includes a cleaning structure coaxially arranged with the dust collection chamber, and the cleaning structure can be controlled to rotate by a drive structure mounted on the bracket.

[0016] As the cleaning structure rotates, it wipes the welding wires that pass through the dust extraction chamber.

[0017] Preferably, the wall of the suction chamber is recessed with a circumferentially extending annular limiting groove, and the cleaning structure includes:

[0018] The annular support block is coaxially located in the annular limiting groove and can rotate about the axis of the dust collection chamber.

[0019] Several connecting blocks, one end of which is connected to an annular support block, and the other end extends axially;

[0020] Cleaning cloth, fixedly attached to the connecting block;

[0021] The annular support block is connected to a driven gear coaxially arranged with the annular support block via a connecting shaft, and the driven gear is located at one end of the feeding tube.

[0022] Preferably, the driving structure includes:

[0023] The drive gear is rotatably connected to the bracket via a transmission shaft;

[0024] An electric motor, in which the motor shaft is connected to the transmission shaft and is used to control the rotation of the drive gear.

[0025] By adopting the above technical solution:

[0026] The feeder of this utility model is equipped with a cleaning structure. During use, the cleaning structure can be rotated by the drive structure and the welding rod passing through the feeder is wiped with a cleaning cloth to better remove impurities on the welding rod. The removed impurities can still be sucked away by a vacuum cleaner through the suction pipe.

[0027] Preferably, the feeding tube includes an outer tube fixed on a bracket and an inner tube that is coaxially arranged with the outer tube and can slide axially away from the outer tube, and one end of the outer tube is detachably connected to a chuck that fixes the inner tube.

[0028] Preferably, the inner tube comprises:

[0029] The inner tube has the aforementioned suction chamber and can be inserted into the outer tube from one end of the outer tube;

[0030] The chip discharge port is radially penetrating the inner tube and corresponds to the dust suction pipe;

[0031] The inner tube has at least two annular limiting grooves, the chip discharge port is located between adjacent annular limiting grooves, and an annular support block is provided in each annular limiting groove. Several connecting blocks are connected between adjacent annular support blocks. At least one annular support block is connected to a driven gear through a connecting shaft, and the connecting shaft has an axially penetrating shaft cavity.

[0032] Preferably, one end of the outer tube is recessed and provided with a mounting groove that is adapted to the chuck, and a threaded hole that can be aligned with each other is provided between the mounting groove and the chuck, and the chuck is connected to the outer tube by bolts;

[0033] The chuck has an opening coaxially aligned with the suction chamber, and the mating surfaces of the chuck and the inner tube are provided with mutually compatible positioning pins and positioning grooves.

[0034] By adopting the above technical solution:

[0035] The feeding tube of this utility model is designed as a detachable inner tube and outer tube structure. The outer tube is fixed on the bracket, and the inner tube is detachably connected to the outer tube. In this way, the inner tube can be disassembled during maintenance to inspect and clean components such as cleaning cloths. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of a specific embodiment 1 of the present utility model;

[0038] Figure 2 This is a schematic diagram of the back of the vertical plate of the frame in specific embodiment 1 of this utility model;

[0039] Figure 3 This is a schematic diagram of the cleaning device in specific embodiment 1 of this utility model;

[0040] Figure 4 for Figure 3 AA section view in the middle;

[0041] Figure 5 This is a schematic diagram of the cleaning device in specific embodiment 2 of this utility model;

[0042] Figure 6 for Figure 5 Exploded view in the image;

[0043] Figure 7 for Figure 5 A schematic diagram of the hidden driving structure;

[0044] Figure 8 for Figure 7 Schematic diagram of the hidden inner tube;

[0045] Figure 9 for Figure 7 BB section view in the middle;

[0046] Figure 10 This is a schematic diagram of the inner tube structure in specific embodiment 2 of this utility model;

[0047] Figure 11 This is a schematic diagram of the chuck structure in specific embodiment 2 of this utility model;

[0048] Figure 12 This is a schematic diagram of the driving structure of a specific embodiment 2 of the present invention. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0050] Example 1

[0051] like Figures 1-2 As shown, this utility model discloses a welding rod wire feeder, including a frame 10 and a set of traction wheels 11 rotatably mounted on the frame 10. A traction zone is formed between the traction wheels 10, and the traction wheels 10 can be rotatably connected to the frame 10 via a shaft 12.

[0052] In this embodiment, the frame 10 consists of a frame horizontal plate 100, frame legs 101, and a frame vertical plate 102. The frame legs 101 are fixedly connected to the bottom of the frame horizontal plate 100 and are used to support the frame horizontal plate 100. The frame vertical plate 102 is fixedly connected to the top of the frame horizontal plate 100 and is used for mounting the traction wheel 11.

[0053] In this embodiment, there are two traction wheels 11, which are longitudinally distributed and rotatably connected to the vertical plate 102 of the frame via a shaft 12. Each shaft 12 is also equipped with two meshing gears 102a. One of the gears 102 is controlled to rotate by a motor (not shown in the figure, the motor shaft of the motor can be connected to the shaft 12). Thus, the gear is controlled to rotate by the motor, causing the two traction wheels to rotate relative to each other, thereby pulling the welding rod to move.

[0054] In addition, a support wheel 13 is rotatably connected to the vertical plate 102 of the frame in this embodiment (in some embodiments, the support wheel can also be removed). The structure of the support wheel 13 is the same as that of the traction wheel 11. Furthermore, a number of material pipes 14 are provided on the vertical plate 102 of the frame. The cavity of the material pipe 14 is aligned with the traction area formed between the traction wheel and the traction area.

[0055] by Figure 1 For example, when pulling the welding rod, the welding rod wire passes through the material pipe on the right side and through the traction zone, and then exits from the material pipe on the right side. When the traction wheel continues to pull, the welding rod wire will move continuously from right to left to complete the traction.

[0056] The above is a brief description of the prior art in this embodiment. Since the above structure does not contribute to the prior art and is also a mature prior art, it will not be described in detail in this embodiment.

[0057] refer to Figure 1 , Figures 3-4 The improvement of the prior art in this embodiment lies in the cleaning device 2. The cleaning device 2 is fixed on the frame 10, or more precisely, on the vertical plate 102 of the frame. The cleaning device is located between the traction wheel and the support wheel. Therefore, the cleaning device 2 is located in front of the traction wheel (that is, upstream of the traction zone). When the welding wire is being pulled, it first passes through the cleaning device 2 for cleaning, and then enters the traction zone. In this way, impurities on the welding wire are reduced, and damage to the welding wire by the traction wheel is avoided during the traction process.

[0058] The cleaning device in this embodiment includes a feeder 20 with open ends for welding wire to pass through, a suction pipe 21 connected to the feeder 20, and a suction source 22 mounted on the frame.

[0059] In this embodiment: the dust source 22 is a vacuum cleaner mounted on the frame (a vacuum cleaner with existing technology can be used).

[0060] In this embodiment, the feeder 20 has the same structure as the material pipe 14 and is fixed to the vertical plate 120 of the frame by the bracket 23.

[0061] In this embodiment, one end of the suction pipe 21 is connected to the feeder 20, and the other end extends longitudinally upward and passes through the bracket 23 and the vertical plate 102 of the frame before connecting to the suction end of the vacuum cleaner 22.

[0062] refer to Figures 1-4 In this embodiment, when the welding wire is being pulled, it passes through the feeder. When the vacuum cleaner is started, the welding wire passing through the feeder is vacuumed to clean the welding wire.

[0063] During vacuuming, the diameter of the welding wire is smaller than the diameter of the feeder. Therefore, the airflow enters from both ends of the feeder and is sucked away through the vacuum pipe.

[0064] Example 2 differs from Example 1 in that:

[0065] like Figures 5-12 As shown, in this embodiment, the feeder 20 includes:

[0066] The feeding pipe is mounted on the frame via bracket 23;

[0067] The dust suction chamber 30 is formed inside the feeding pipe and extends axially through the feeding pipe;

[0068] It also includes a cleaning structure coaxially arranged with the dust collection chamber 30, and the cleaning structure can be controlled to rotate by a drive structure mounted on the bracket 23.

[0069] As the cleaning structure rotates, it wipes the welding wire 1000 that passes through the dust extraction chamber 30.

[0070] In this embodiment: the wall of the suction chamber 30 is recessed with a circumferentially extending annular limiting groove 31, and the cleaning structure includes:

[0071] The annular support block 40 is coaxially disposed in the annular limiting groove 31 and can rotate about the axis of the dust suction chamber 30.

[0072] Several connecting blocks 41 are connected at one end to an annular support block 40, and at the other end extend axially.

[0073] The cleaning cloth 42 is fixedly connected to the connecting block 41, usually by adhesive bonding.

[0074] The annular support block 40 is connected to a driven gear 44 coaxially arranged with the annular support block 40 via a connecting shaft 43. The driven gear 44 is located at one end of the feeding tube.

[0075] In this embodiment: the driving structure includes:

[0076] The drive gear 50 is rotatably connected to the bracket 23 via the transmission shaft 51;

[0077] Motor 52, the motor shaft of motor 52 is connected to transmission shaft 51 and is used to control the rotation of drive gear 50.

[0078] In this embodiment, a drive box 54 is detachably connected to one side of the bracket 23 by bolts 54a. The motor 52 is fixed to the drive box 54. A support base 54b is fixedly connected inside the drive box 54. One end of the transmission shaft 51 is rotatably connected to the support base 54b. The drive gear 50 can be keyed to the transmission shaft 51.

[0079] In this embodiment: the feeding tube includes an outer tube 60 fixed on the bracket 23 and an inner tube 61 coaxially arranged with the outer tube 60 and capable of axially sliding and moving away from the outer tube 60. One end of the outer tube 60 is detachably connected to a chuck 62 that fixes the inner tube 61. In this embodiment, the dust suction tube is connected to the outer tube 60.

[0080] The inner tube 61 in this embodiment includes:

[0081] The inner tube 610 has the aforementioned suction chamber 30 and can be inserted into the outer tube 60 from one end. In this embodiment, the inner tube is composed of three tube joints 610a that are sequentially snapped together end to end. (Refer to...) Figures 9-10 Taking two of the pipe connections 610a as an example, one end of one pipe connection 610a is provided with a snap-fit ​​groove 610b, and the other end of the pipe connection 610a is provided with a snap-fit ​​part 610c that can be inserted into the snap-fit ​​groove 610b. The inner side wall of the snap-fit ​​groove 610b is provided with a snap-fit ​​groove 610d, and an elastic card 610e is fixed on the outer wall of the snap-fit ​​part 610c. One end of the elastic card is fixedly connected to the snap-fit ​​part 610c, and the other end extends and is spaced apart from the snap-fit ​​part 610c. From the side, the elastic card 610e is arc-shaped.

[0082] The chip discharge port 611 is radially provided on the inner tube body 610 and corresponds to the dust suction pipe 21. In this embodiment, the chip discharge port 611 is opened on the pipe connection part 610a located in the middle.

[0083] The inner tube body 610 has two annular limiting grooves 31. When two adjacent pipe joints 610a are engaged, an annular limiting groove 31 is formed between the adjacent pipe joints 610a. The chip discharge port 610 is located between the adjacent annular limiting grooves 31. Each annular limiting groove 31 is provided with an annular support block 40 in this embodiment. Two connecting blocks 41 are connected between adjacent annular support blocks 40. In this embodiment, the connecting block 41 is provided with a flat key 610a, and the annular support block 40 is provided with a keyway 40a. During assembly, the annular support block engages with the connecting block 41 through the cooperation of the keyway and the flat key. Then, the pipe joints 610a engage with each other to complete the assembly.

[0084] In this embodiment, one of the annular support blocks 40 is connected to a driven gear 44 via a connecting shaft 43. The connecting shaft 43 has an axially penetrating shaft cavity 43a. Specifically, the connecting shaft 43, the driven gear 44, and the connecting block 41 are connected in sequence, and the three can be integrally molded. To ensure stability, in this embodiment, a support portion 41a (the support portion is annular) is integrally molded at the end of the two connecting blocks 41 away from the connecting shaft 43. The support portion can provide stability to the free end of the connecting block 41 to ensure good fit between the flat key on the connecting block 41 and the keyway of the annular support block.

[0085] In this embodiment: one end of the outer tube 60 is recessed and has a mounting groove 70 that is adapted to the chuck 62. The mounting groove 70 and the chuck 62 are provided with threaded holes 71 that can be aligned with each other. The chuck 62 is connected to the outer tube 60 by bolts 54a.

[0086] The chuck 62 has an opening 72 coaxially arranged with the dust suction chamber 30, and a positioning pin 80 and a positioning groove 81 that are mutually adapted are provided on the mating surfaces of the chuck 62 and the inner tube 610.

[0087] In this embodiment, the diameter of the outer tube at the end furthest from the chuck is smaller than the diameter of the inner tube.

[0088] refer to Figures 5-12 The operating principle of this embodiment is as follows:

[0089] The welding wire can be inserted through an opening at the center of the driven gear, passing sequentially through the shaft cavity of the connecting shaft, the dust collection chamber of the inner tube, and exiting from the other end of the outer tube. The traction wheel can be positioned on the side of the bracket away from the drive structure. Thus, when the traction wheel pulls the welding wire, the welding wire moves along the aforementioned path. As the welding wire moves, the motor controls the driven gear to rotate via the drive gear. The driven gear then controls the connecting shaft to rotate around the axis of the dust collection chamber (that is, rotate around the welding wire). As the connecting shaft rotates, the connecting block revolves around the welding wire, and the cleaning cloth on the connecting block wipes the welding wire. Wiping removes impurities from the welding wire, which can then be drawn away by the dust collection pipe through the chip discharge port, thus completing the cleaning of the welding wire.

[0090] Secondly, the detachable design of the inner and outer tubes in this embodiment allows the inner tube to be periodically removed to clean the cleaning cloth.

[0091] It is worth noting that in this embodiment, the cleaning cloth only needs to contact the outer wall of the welding wire, and does not need to be pressed tightly against the welding wire. This way, when the cleaning cloth wipes the welding wire, impurities are less likely to scratch the welding wire.

[0092] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding electrode wire feeder, comprising a frame (10) and at least one set of traction wheels (11) rotatably mounted on the frame (10), wherein a traction zone is formed between the traction wheels (11), characterized in that: It also includes a cleaning device (2) installed on the frame (10) and located upstream of the traction area; The cleaning device (2) includes at least a feeder (20) with open ends for the welding wire to pass through, a suction pipe (21) connected to the feeder (20), and a suction source (22) mounted on the frame (10).

2. The electrode feeder according to claim 1, characterized in that: The feeder (20) includes: The feeding pipe is mounted on the frame (10) via a bracket (23); The dust suction chamber (30) is formed inside the feed pipe and extends axially through the feed pipe; It also includes a cleaning structure coaxially arranged with the dust collection chamber (30), and the cleaning structure can be controlled to rotate by a drive structure mounted on the bracket (23); As the cleaning structure rotates, it wipes the welding wires that pass through the dust extraction chamber (30).

3. The electrode feeder according to claim 2, characterized in that: The suction chamber (30) has a recessed annular limiting groove (31) extending circumferentially on its cavity wall. The cleaning structure includes: The annular support block (40) is coaxially located in the annular limiting groove (31) and can rotate about the axis of the dust suction chamber (30). Several connecting blocks (41) are connected at one end to an annular support block (40) and extend axially at the other end; Cleaning cloth (42) is fixedly connected to connecting block (41); Among them, the annular support block (40) is connected to a driven gear (44) coaxially arranged with the annular support block (40) via a connecting shaft (43), and the driven gear (44) is located at one end of the feeding tube.

4. The electrode feeder according to claim 3, characterized in that: The feeding tube includes an outer tube (60) fixed on a bracket (23) and an inner tube (61) coaxially arranged with the outer tube (60) and capable of sliding axially away from the outer tube (60). One end of the outer tube (60) is detachably connected to a chuck (62) that fixes the inner tube (61).

5. The electrode feeder according to claim 4, characterized in that: The inner tube (61) includes: The inner tube (610) has the dust suction chamber (30) and can be inserted into the outer tube (60) from one end of the outer tube (60); The chip discharge port (611) is radially through the inner tube (610) and corresponds to the suction pipe (21); The inner tube (610) has at least two annular limiting grooves (31), the chip discharge port (611) is located between adjacent annular limiting grooves (31), and annular support blocks (40) are provided in each annular limiting groove (31). Several connecting blocks (41) are connected between adjacent annular support blocks (40). At least one annular support block (40) is connected to a driven gear (44) through a connecting shaft (43). The connecting shaft (43) has an axially penetrating shaft cavity (43a).

6. A welding electrode feeder according to claim 4 or 5, characterized in that: One end of the outer tube (60) is recessed and has a mounting groove (70) that is adapted to the chuck (62). There is a threaded hole (71) between the mounting groove (70) and the chuck (62) that can be aligned with each other. The chuck (62) is connected to the outer tube (60) by bolts (54a). The chuck (62) has an opening (72) coaxially arranged with the dust suction chamber (30), and a positioning pin (80) and a positioning groove (81) that are mutually adapted are provided on the mating surfaces of the chuck (62) and the inner tube (61).

7. A welding electrode feeder according to claim 4 or 5, characterized in that: The driving structure includes: The drive gear (50) is rotatably connected to the bracket (23) via the transmission shaft (51); The motor (52) has its motor shaft connected to the transmission shaft (51) and is used to control the rotation of the drive gear (50).

8. A welding electrode feeder according to any one of claims 1-5, characterized in that: The dust source (22) is a vacuum cleaner installed on the frame (10).

Images