Self-adjusting welding wire tensioning device

Abstract

The utility model belongs to the technical field of welding wire copper plating tensioning equipment, and discloses a self-adjusting welding wire tensioning device. Rails are arranged on the two sides of the middle of a support of the self-adjusting welding wire tensioning device respectively, an adjusting roller is connected with two sliding blocks through a U-shaped support and arranged in the two rails in a sliding mode, the U-shaped support is connected with a balancing weight by winding two steel wire ropes around pulleys respectively, and a proximity switch is installed at the wire inlet end of the support through an L-shaped plate. And an induction plate is arranged on the U-shaped support. When the welding wire is loosened, the adjusting roller can automatically slide downwards under the action of the balancing weight, and the induction plate can move and trigger the proximity switch, so that a signal is sent to the controller. After the controller receives the signal, a motor encoder of the pay-off machine can be adjusted in time, the rotating speed of a welding wire reel is controlled, and the stability of the tension degree of the welding wire is kept. According to the utility model, the stability and the efficiency of the welding process are improved, the generation of welding defects is reduced, and the welding quality and the safety of equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding wire copper plating tensioning equipment, and specifically relates to a self-adjusting welding wire tensioning device. Background Art

[0002] At present, the copper plating workshop has 30 gas shielded welding wire production lines, 1 submerged arc production line, and 1 rework line. As the core link of welding wire production, the copper plating workshop's production line layout and product quality directly determine the performance of the welding wire. As a key material, the quality and performance of welding wire directly affect the welding effect.

[0003] In the welding process of the copper plating workshop, after the welding wire is cut from the welding wire reel, if the relaxed diameter is small, it will cause frequent friction between the wire and the conductive nozzle during the subsequent wire feeding process. This friction not only increases the wire feeding resistance, but also makes it easy for the electrode contact between the welding wire and the nozzle to be interrupted during the welding process. Once the electrode contact is unstable, the stability of the arc will also be seriously affected, resulting in discontinuity in the welding process. This phenomenon not only affects the welding efficiency, but is also likely to cause serious damage to the welding quality, causing defects or fractures at the welding joint. Therefore, controlling the relaxed diameter of the welding wire is an important part of reducing the friction between it and the conductive nozzle to ensure the stability and continuity of the welding process. In order to solve this problem, the copper plating workshop has set up a rework production line to specifically re-draw and re-plate the welding wire so that it can become a qualified welding wire product again.

[0004] However, although the rework line can solve the problem of welding wire to a certain extent, its processing capacity is limited. Under normal production conditions, the amount of welding wire produced per month is as high as 8 tons, and there is currently no special equipment in the workshop to handle this welding wire. This has led to an increase in processing costs and also caused excessive inventory backlogs in the workshop. In order to solve this problem, it is necessary to develop an efficient and convenient wire processing device to improve the production efficiency and product quality of welding wire, reduce processing costs, and reduce inventory backlogs. Utility Model Content

[0005] Aiming at the many problems in the prior art that the welding wire has a re-plating process due to uneven wire feeding in the copper plating welding process, the utility model provides a self-adjusting welding wire tensioning device.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a self-adjusting welding wire tensioning device, comprising a bracket, tracks are respectively arranged on both sides of the middle part of the bracket, sliders are respectively slidably arranged in the two tracks, the two sliders are connected by a U-shaped support, and an adjusting roller is arranged between the two sliders, the U-shaped support is connected to the counterweight block by two steel ropes passing around the pulleys respectively, the two pulleys are respectively installed on both sides of the top of the bracket, a proximity switch is installed at one end of the bracket for feeding wire through an L-shaped plate, an induction plate is arranged on the U-shaped support, the welding wire passes through the lower end of the adjusting roller and matches the tension of the welding wire under the traction of the two counterweight blocks, and the induction plate is kept away from the proximity switch, the signal end of the proximity switch is connected to the signal input end of the controller through a signal line, and the signal output end of the controller is connected to the motor encoder of the wire pay-off machine through the signal line, so that the rotation speed of the welding wire reel and the tension of the welding wire are linked and controlled.

[0007] As a further supplement to the above technical solution, a first mounting plate is fixed on the U-shaped support, a limiting sleeve is arranged on the first mounting plate, a mounting hole is arranged on the sensing plate, a first bolt passes through the mounting hole and the limiting sleeve in sequence to mount the sensing plate on the U-shaped support, and a safety spring is arranged on the limiting sleeve to prevent the sensing plate from directly hitting the proximity switch and causing damage to the proximity switch during the falling process.

[0008] As a further supplement to the above technical solution, a transverse plate is fixed on both sides of each track, and a transition roller is arranged between the two transverse plates on the same side of the track. The two transition rollers are respectively used to ensure smooth entry and exit of the welding wire into and out of the adjusting roller.

[0009] As a further supplementary explanation of the above technical solution, limit baffles are respectively arranged on both sides of the bracket to limit the direct contact between the sensor plate and the proximity switch during the falling process.

[0010] As a further supplement to the above technical solution, two anti-deviation rollers are respectively arranged on both sides of the bracket. The welding wire passes between the two anti-deviation rollers on both sides when entering and exiting the adjusting roller, so as to ensure that the welding wire will not deviate during the downward pressure adjustment process.

[0011] As a further explanation and limitation of the above technical solution, each of the anti-deviation rollers is mounted on a second mounting plate, a slot is provided on the second mounting plate, and a second bolt passes through the slot to fix the anti-deviation roller on the bracket.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model realizes automatic adjustment of the wire tension of the adjusting roller by the traction of the counterweight and the wire rope. When the welding wire becomes loose, the adjusting roller will automatically slide down under the action of the counterweight, and the induction plate will move and trigger the proximity switch, thereby sending a signal to the controller. After receiving the signal, the controller will promptly adjust the motor encoder of the pay-off machine to control the rotation speed of the welding wire reel to maintain the stability of the welding wire tension. This safety protection mechanism can effectively avoid welding quality problems and equipment damage caused by loose or over-tensioned welding wire. Therefore, the utility model realizes real-time monitoring and feedback control of the welding wire tension through the coordinated use of the proximity switch and the induction plate.

[0014] 2. The utility model sets anti-deviation rollers on both sides of the bracket to ensure that the welding wire maintains a stable path when entering and exiting the adjusting rollers, preventing the welding wire from deviating. This anti-deviation design can improve the accuracy and stability of welding and reduce the occurrence of welding defects.

[0015] 3. The welding wire tensioning device of the utility model has a simple and compact structure, and is easy to install and debug. At the same time, the connection between the components is firm and reliable, and it is easy to maintain and replace. This structural feature makes the utility model have high practicality and reliability in practical applications.

[0016] 4. The welding wire tensioning device of the utility model is suitable for welding wires of different specifications and materials, and can meet the requirements of different welding processes. At the same time, by adjusting the traction force of the counterweight block and the wire rope, it can also meet the requirements of different tensions, so that the utility model has a wide range of application prospects.

[0017] 5. The welding wire tensioning device of the utility model has the beneficial effects of adaptive tensioning adjustment, safety protection mechanism, anti-deviation design, simple structure, easy maintenance and wide applicability. These effects jointly improve the stability and efficiency of the welding process, reduce the occurrence of welding defects, and improve the welding quality and the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the self-adjusting welding wire tensioning device in the utility model;

[0019] Figure 2 It is the assembly diagram of the adjusting roller, the induction plate and the U-shaped support in the utility model;

[0020] Figure 3 This is a structural diagram of the self-adjusting welding wire tensioning device in the utility model;

[0021] Figure 4 It is a reference diagram for on-site installation of the self-adjusting welding wire tensioning device in the utility model.

[0022] In the figure: the bracket is 1, the track is 2, the slider is 3, the two sliders are 3, the adjusting roller is 4, the U-shaped support is 5, the wire rope is 6, the pulley is 7, the counterweight is 8, the L-shaped plate is 9, the proximity switch is 10, the induction plate is 11, the first mounting plate is 12, the limit sleeve is 13, the safety spring is 14, the mounting hole is 15, the first bolt is 16, the cross plate is 17, the transition roller is 18, the limit baffle is 19, the anti-deviation roller is 20, the second mounting plate is 21, the second bolt is 22, the slot is 23, and the welding wire is 24. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical solution of the utility model, the following Figures 1 to 4 According to the implementation of this project transformation, we further illustrate the utility model through three embodiments. Embodiment 1

[0024] As attached Figures 1 to 3 As shown, a self-adjusting welding wire tensioning device includes a bracket 1, and a horizontal plate 17 is fixed on both sides of each track 2. A transition roller 18 is arranged between the two horizontal plates 17 on the same side of the track 2. The two transition rollers 18 can ensure that the welding wire 24 enters and exits the adjusting roller 4 smoothly. Tracks 2 are respectively arranged on both sides of the middle part of the bracket 1, and sliders 3 are respectively slidably arranged in the two tracks 2. The two sliders 3 are connected by a U-shaped support 5, and an adjusting roller 4 is arranged between the two. The U-shaped support 5 is connected to the counterweight 8 by passing through a pulley 7 through two steel ropes 6. The two pulleys 7 are respectively installed on both sides of the top of the bracket 1. A proximity switch 10 is installed at the wire feeding end of the bracket 1 through an L-shaped plate 9, and an induction plate 11 is arranged on the U-shaped support 5. The welding wire 24 passes through the lower end of the adjusting roller 4 and matches the tension of the welding wire 24 under the traction of the two counterweights 8, and the induction plate 11 is kept away from the proximity switch 10. The signal end of the proximity switch 10 is connected to the signal input end of the controller through a signal line, and the signal output end of the controller is connected to the motor encoder of the wire unwinding machine through a signal line, so that the rotation speed of the welding wire reel and the tension of the welding wire 24 are linked to each other. Control. Embodiment 2

[0025] In this project renovation, the proximity switch is the key sensor equipment for this renovation and is crucial to the implementation of the entire project renovation. Therefore, in order to protect the proximity switch from being damaged during use. Figure 2 and 3As shown, we take the following two protection measures: On the one hand, a first mounting plate 12 is fixed on the U-shaped support 5, on which a limiting sleeve 13 is arranged, and a mounting hole 15 is arranged on the sensing plate 11. The first bolt 16 passes through the mounting hole 15 and the limiting sleeve 13 in sequence to mount the sensing plate 11 on the U-shaped support 5, and a safety spring 14 is arranged on the limiting sleeve 13 to prevent the sensing plate 11 from directly hitting the proximity switch 10 during the falling process and causing damage to it. On the other hand, limiting baffles 19 are respectively arranged on both sides of the bracket 1 to limit the sensing plate 11 from directly contacting the proximity switch 10 during the falling process. Embodiment 3

[0026] In order to prevent the welding wire from deviating during the downward pressure adjustment process, we have set two anti-deflection rollers on both sides of the bracket, as shown in the attached Figure 3 As shown, the specific installation method of the anti-deviation roller is as follows: each anti-deviation roller 20 is mounted on the second mounting plate 21, and a slot 23 is provided on the second mounting plate 21. The second bolt 22 passes through the slot 23 to fix the anti-deviation roller 20 on the bracket 1. In actual use, we pass the welding wire 24 through the two anti-deviation rollers 20, so that it is constrained by the two anti-deviation rollers when entering and exiting the adjusting roller 4, and finally achieves the purpose of preventing deviation.

[0027] Its working principle: as shown in the attached Figure 4 As shown, first, the welding wire 24 comes out from the welding wire reel of the wire pay-off machine and passes between the two anti-skew rollers 20 at the wire inlet end, then passes around the upper edge of the groove of the transition roller 18 at the wire inlet end and passes through the lower end of the groove of the adjusting roller 4, then passes around the upper edge of the groove of the transition roller 18 at the wire outlet end, and finally, passes between the two anti-skew rollers 20 at the wire inlet end and enters the wire take-up machine.

[0028] As attached Figure 4 As shown, during normal operation, the tension of the welding wire 24 matches the adjusting roller 4 pulled by the two counterweights 8. At this time, the induction plate 11 is away from the proximity switch 10. Once the welding wire 24 becomes loose, the balance of the adjusting roller 4 pulled by the two counterweights 8 is broken, and the adjusting roller 4 slides downward under its own weight. At the same time, the induction plate 11 moves downward and approaches the proximity switch 10. When the controller receives the induction signal, it controls the rotation speed of the welding wire reel to decrease through the motor encoder of the wire pay-off machine, reduces the wire output speed, and gradually restores the welding wire 24 to a tensioned state.

[0029] The above shows and describes the main features and advantages of the utility model. For those skilled in the art, it is obvious that the specific implementation of the utility model is not limited to the details of the above exemplary embodiments, and the creative ideas and design ideas of the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model, which should be equivalent to the protection scope disclosed in the technical solution of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A self-adjusting welding wire tensioning device, comprising a bracket (1), characterized in that: Tracks (2) are respectively arranged on both sides of the middle of the support (1), and sliders (3) are respectively arranged in the two tracks (2) for sliding movement. The two sliders (3) are connected by a U-shaped support (5), and an adjusting roller (4) is arranged between the two sliders. The U-shaped support (5) is connected to a counterweight (8) by two steel wires (6) passing through pulleys (7). The two pulleys (7) are respectively installed on both sides of the top of the support (1). A proximity switch (10) is installed at the wire feeding end of the support (1) through an L-shaped plate (9). A sensing plate (11) is arranged on the support (5), the welding wire (24) passes through the lower end of the adjusting roller (4) and matches the tension of the welding wire (24) under the traction of two counterweights (8), and the sensing plate (11) is kept away from the proximity switch (10), the signal end of the proximity switch (10) is connected to the signal input end of the controller through a signal line, and the signal output end of the controller is connected to the motor encoder of the wire pay-off machine through the signal line, so that the rotation speed of the welding wire reel and the tension of the welding wire (24) are linked to each other.

2. A self-adjusting welding wire tensioning device according to claim 1, characterized in that: A first mounting plate (12) is fixed on the U-shaped support (5), on which a limiting sleeve (13) is arranged, and a mounting hole (15) is arranged on the sensing plate (11). A first bolt (16) passes through the mounting hole (15) and the limiting sleeve (13) in sequence to mount the sensing plate (11) on the U-shaped support (5), and a safety spring (14) is arranged on the limiting sleeve (13) to prevent the sensing plate (11) from directly colliding with the proximity switch (10) during a falling process, thereby causing damage to the proximity switch (10).

3. The self-adjusting welding wire tensioning device according to claim 1, characterized in that: A transverse plate (17) is fixed on both sides of each track (2), and a transition roller (18) is arranged between two transverse plates (17) located on the same side of the track (2). The two transition rollers (18) are respectively used to ensure that the welding wire (24) enters and exits the adjusting roller (4) smoothly.

4. A self-adjusting welding wire tensioning device according to any one of claims 1 to 3, characterized in that: Limiting baffles (19) are respectively arranged on both sides of the bracket (1) to limit the direct contact between the sensing plate (11) and the proximity switch (10) during the falling process.

5. A self-adjusting welding wire tensioning device according to claim 4, characterized in that: Two anti-deviation rollers (20) are respectively arranged on both sides of the bracket (1); the welding wire (24) passes between the two anti-deviation rollers (20) on both sides when entering and exiting the adjustment roller (4), thereby ensuring that the welding wire (24) does not deviate during the downward pressure adjustment process.

6. A self-adjusting welding wire tensioning device according to claim 5, characterized in that: Each of the anti-deviation rollers (20) is mounted on a second mounting plate (21), a slotted hole (23) is provided on the second mounting plate (21), and a second bolt (22) passes through the slotted hole (23) to fix the anti-deviation roller (20) on the bracket (1).

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