Submerged arc welding trolley with submerged arc welding flux recovery function

Abstract

The utility model provides a kind of submerged arc welding trolley with submerged arc welding flux recovery function, including the vehicle body of wheel, main support pole, welding wire disc, control box, motor, electronic display screen, shaking device box, wire feeder tube, intelligent control unit, still including negative pressure slag suction unit, magnetic separation unit, vibrating screen unit, dust removal unit;Negative pressure slag suction unit includes solder tank, lower flux pipe, transparent cup, slag suction pipe, compressed gas inlet pipe, negative pressure gas source, air outlet pipe;The side close to slag suction pipe in transparent cup is provided with magnetic separation unit, and magnetic separation unit includes two oppositely rotating electromagnetic rollers and two respectively with same side electromagnetic roller rotation direction opposite electric roller brush;Vibrating screen unit includes multilayer inclined screen structure and multiple high-frequency vibration motors;Dust removal unit includes integrated cyclone separator and HEPA filter. Realize flux and welding slag and metal scrap high-efficiency separation and sorting, improve the function of dust suppression, also improve the flux recycling rate.

Description

Technical Field

[0001] This utility model relates to the technical field of submerged arc welding carriages, and in particular to a submerged arc welding carriage with a submerged arc welding flux recovery function. Background Technology

[0002] In submerged arc welding, flux typically forms a protective layer over the welding area. After welding, some of the flux melts into slag, which mixes with unfused flux to form a mixture. Traditional recycling methods rely on manual cleaning or simple mechanical collection, which is inefficient and generates dust pollution. Secondly, existing recycling devices have poor separation effects, making it difficult to effectively distinguish between metal debris and non-metallic flux, resulting in low flux reuse rates. Finally, the slag collection process easily generates dust, affecting the working environment and the health of operators.

[0003] Chinese Patent Publication No. CN21020900U, published on March 31, 2020, discloses a submerged arc welding trolley capable of automatically cleaning welding slag. The trolley includes a traveling trolley with wheel brackets fixedly mounted on both sides, through which traveling wheels are movably mounted. A main support rod is fixedly connected to the upper surface of the trolley, and a side support rod is movably sleeved in the middle of the main support rod. A cleaning device is fixedly mounted at one end of the side support rod. A lifting ring is located at the top of the main support rod, and an end rod is fixedly connected inside the lifting ring. This submerged arc welding trolley, capable of automatically cleaning welding slag, uses a gear and cam fixedly mounted on the output shaft of a servo motor in the cleaning device to achieve the lifting and swinging of the sweeping handle. Combined with a receiving box on the side of the trolley, it solves the problems of manual flux removal and recycling, and the inability to observe the post-weld effect in a timely manner due to flux coverage, thus improving work efficiency and welding quality, and optimizing the working environment. The shortcomings of this existing technology are: simple mechanical recycling without separation function, difficulty in effectively distinguishing metal debris from non-metallic flux, and the tendency to generate dust during the cleaning process. Given this situation, improvement is urgently needed. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a submerged arc welding trolley with a submerged arc welding flux recovery function, which has excellent separation effect, realizes efficient separation and sorting of flux, welding slag and metal debris, improves the dust suppression function, and also improves the flux reuse rate.

[0005] This utility model provides a submerged arc welding trolley with a flux recovery function, including a wheeled body, a main support rod mounted on the body, a wire spool connected to the main support rod via side support rods, a control box mounted on one side of the wire spool, a motor mounted on one side of the upper surface of the body and connected to the control box, an electronic display screen mounted on the motor, a vibration device box electrically connected to the control box, and a wire feeding tube with one end mounted at the bottom of the vibration device box. The control box is equipped with an intelligent control unit and also includes a negative pressure slag suction unit, a magnetic separation unit, a vibrating screening unit, and a dust removal unit; the negative pressure slag suction unit, the magnetic separation unit, the vibrating screening unit, and the dust removal unit are connected to the control box.

[0006] The negative pressure slag suction unit includes a solder box, a flux lowering pipe, a transparent cup, a slag suction pipe, a compressed air inlet pipe, a negative pressure air source, and an air outlet pipe. The solder box is connected to the main support rod via a side support rod. The flux lowering pipe is connected to the bottom of the solder box. The shaking device box is installed on one side of the outer side of the solder box. The other end of the wire feeding pipe is connected to the flux lowering pipe near the flux lowering port. The transparent cup is fixedly installed inside the solder box by a bracket. One end of the slag suction pipe extends into the solder box and is connected to the bottom of the transparent cup. The compressed air inlet pipe is connected to the slag suction pipe near the slag suction port via a compressed air inlet pipe valve. The compressed air inlet pipe is connected to the negative pressure air source. An air outlet pipe is connected to the top of the solder box. A discharge port is opened on the top of the transparent cup.

[0007] A magnetic separation unit is provided inside the transparent cup near the slag suction pipe. The magnetic separation unit includes two electromagnetic rollers that rotate in opposite directions and two electric rollers that rotate in the opposite direction to the electromagnetic rollers on the same side. A scrap guide track extending outward from the transparent cup is installed below the contact gap between the electromagnetic rollers and the electric rollers on the same side. The discharge end of the scrap guide track is connected to a scrap collection box, which is fixedly installed on the inner wall of the solder box.

[0008] The vibrating screening unit includes a multi-layer inclined screen structure and multiple high-frequency vibrating motors; the multi-layer inclined screen structure is installed in the upper part of the inner cavity of the transparent cup, and the high-frequency vibrating motors are installed in the lower part of the multi-layer inclined screen structure.

[0009] The dust removal unit includes an integrated cyclone separator and a HEPA filter. The integrated cyclone separator is fixedly installed at the air outlet position on the top of the solder box, and the HEPA filter is installed on the air outlet side of the integrated cyclone separator. The air outlet end of the HEPA filter is connected to the air outlet pipe.

[0010] Preferably, an electromagnetic roller drive motor connected to the electromagnetic roller is installed outside the transparent cup, and the electromagnetic roller drive motor is electrically connected to the frequency converter; an electric brush drive motor connected to the electric roller brush is installed outside the transparent cup.

[0011] Preferably, the multi-layer inclined screen structure includes a first inclined screen, a second inclined screen, and a third inclined screen from bottom to top. High-frequency vibration motors are installed on the outer side of the transparent cup at positions corresponding to the first, second, and third inclined screens, respectively. The power output ends of each high-frequency vibration motor extend into the transparent cup and contact the bottom of the first, second, and third inclined screens, respectively. The transparent cup has discharge holes at positions corresponding to the first, second, and third inclined screens, and each discharge hole is connected to a guide rail. A classification collection box is correspondingly installed at the free end of each guide rail, and each classification collection box is fixedly installed on the inner wall of the solder box.

[0012] Preferably, the aperture sizes of the first inclined screen, the second inclined screen, and the third inclined screen are arranged from largest to smallest as follows: third inclined screen > second inclined screen > first inclined screen.

[0013] Preferably, a flux valve is installed on the side of the flux tube near the solder box.

[0014] Preferably, the inclination angles of the first inclined screen, the second inclined screen, and the third inclined screen are set to 5°-15°; the inclination directions of the first inclined screen and the second inclined screen are opposite, and the inclination directions of the second inclined screen and the third inclined screen are opposite.

[0015] Preferably, the slag suction pipe is connected to the slag suction port via a shape memory metal pipe.

[0016] Preferably, an anti-magnetic, weld-resistant inductive proximity sensor is installed inside the transparent cup, and the anti-magnetic, weld-resistant inductive proximity sensor is electrically connected to the control box.

[0017] The beneficial effects of this utility model are as follows: This structure is equipped with a negative pressure slag suction unit, a magnetic separation unit, a vibrating screening unit, and a dust removal unit. The modular design facilitates maintenance and functional expansion. The negative pressure slag suction unit, the magnetic separation unit, and the vibrating screening unit work together to improve the separation efficiency of metals and non-metals, resulting in excellent separation effect. It achieves efficient separation and sorting of flux, welding slag, and metal debris, and improves the flux reuse rate. The synergistic cooperation between the negative pressure slag suction unit and the dust removal unit enhances the dust suppression function and reduces environmental pollution. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view (first-person perspective) of the present invention.

[0019] Figure 2 This is a three-dimensional view (second perspective) of the present invention.

[0020] Figure 3 This is a front view of the filter separation structure.

[0021] Figure 4 This is a schematic diagram showing the relative structural relationship between the solder box, the integrated cyclone separator, and the HEPA filter.

[0022] Figure 5 This is a schematic diagram showing the relative structural relationship between the transparent cup and the multi-layered inclined screen structure.

[0023] The attached figures are labeled as follows: vehicle body 10, electronic display screen 11, flux inlet 12, flux pipe 13, slag suction pipe 14, compressed air inlet valve 15, wire feeding pipe 16, flux valve 17, compressed air inlet pipe 18, main support rod 19, welding wire spool 20, control box 21, vibration device box 22, welding material box 23, air outlet 24, air outlet pipe 25, side support rod 26, slag suction inlet 27, scrap collection box 28, scrap guide rail 29, electromagnetic roller 30, motor 31, multi-layer inclined screen structure 33, high-frequency vibration motor 32, transparent cup 34, discharge port 35, electric roller brush 37, integrated cyclone separator 38, HEPA filter 39, first inclined screen 42, second inclined screen 41, third inclined screen 40, guide rail 43, sorting collection box 44, memory metal pipe 45, anti-magnetic weld-resistant inductive proximity sensor 46. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with specific embodiments and accompanying drawings.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please refer to Figure 1-5As shown, this utility model provides a submerged arc welding trolley with a flux recovery function, including a wheeled body 10, a main support rod 19 mounted on the body 10, a wire spool 20 connected to the main support rod 19 via a side support rod 26, a control box 21 mounted on one side of the wire spool 20, a motor 31 mounted on one side of the upper surface of the body 10 and connected to the control box 21, an electronic display screen 11 mounted on the motor 31, a vibration device box 22 electrically connected to the control box 21, and a wire feeding tube 16 with one end mounted at the bottom of the vibration device box 22. The control box 21 is equipped with an intelligent control unit and also includes a negative pressure slag suction unit, a magnetic separation unit, a vibrating screening unit, and a dust removal unit; the negative pressure slag suction unit, the magnetic separation unit, the vibrating screening unit, and the dust removal unit are connected to the control box 21.

[0027] The negative pressure slag suction unit includes a solder box 23, a flux lowering pipe 13, a transparent cup 34, a slag suction pipe 14, a compressed air inlet pipe 18, a negative pressure air source, and an air outlet pipe 25. The solder box 23 is connected to the main support rod 19 via a side support rod 26. The flux lowering pipe 13 is connected to the bottom of the solder box 23. The shaking device box 22 is installed on one side of the outer surface of the solder box 23. The other end of the wire feeding pipe 16 is connected to the flux lowering pipe 13 near the flux lowering port 12. The welding head is connected to port 12. The transparent cup 34 is fixedly installed inside the solder box 23 by a bracket. One end of the slag suction pipe 14 extends into the solder box 23 and communicates with the bottom of the transparent cup 34. The compressed air inlet pipe 18 is connected to the slag suction pipe 14 near the slag suction port 27 through the compressed air inlet pipe valve 15. The compressed air inlet pipe 18 is connected to a negative pressure air source. An air outlet pipe 25 is connected to the top of the solder box 23. A discharge port 35 is opened on the top of the transparent cup 34. A flux lowering valve 17 is installed on the side of the flux lowering pipe 13 near the solder box 23. In this embodiment, the negative pressure suction range of the compressed air inlet pipe 18 is set to 0.5-1.2 kPa. The negative pressure air source is connected to a vacuum pump.

[0028] A magnetic separation unit is installed inside the transparent cup 34 near the slag suction pipe 14. The magnetic separation unit includes two electromagnetic rollers 30 rotating in opposite directions and two electric roller brushes 37 rotating in the opposite direction to the electromagnetic rollers 30 on the same side. A scrap guide rail 29 extending outwards from the transparent cup 34 is installed below the contact gap between the electromagnetic rollers 30 and the electric roller brushes 37 on the same side. The scrap guide rail 29 is a sealed rail, and its outlet end is connected to a scrap collection box 28, which is fixedly installed on the inner wall of the solder box 23. An electromagnetic roller drive motor connected to the electromagnetic rollers 30 is installed outside the transparent cup 34, and the electromagnetic roller drive motor is electrically connected to a frequency converter. An electric brush drive motor connected to the electric roller brushes 37 is also installed outside the transparent cup 34. In this embodiment, the magnetic field strength of the electromagnetic rollers 30 is set to 0.3-1.5T.

[0029] The dust removal unit includes an integrated cyclone separator 38 and a HEPA filter 39. The integrated cyclone separator 38 is fixedly installed at the air outlet 24 on the top of the solder box 23, and the HEPA filter 39 is installed on the air outlet side of the integrated cyclone separator 38. The air outlet end of the HEPA filter 39 is connected to the air outlet pipe 25.

[0030] The vibrating screening unit includes a multi-layer inclined screen structure 33 and multiple high-frequency vibrating motors 32; the multi-layer inclined screen structure 33 is installed in the upper part of the inner cavity of the transparent cup 34, and the high-frequency vibrating motors 32 are installed in the lower part of the multi-layer inclined screen structure 33. The multi-layer inclined screen structure 33 includes, from bottom to top, a first inclined screen 42, a second inclined screen 41, and a third inclined screen 40. High-frequency vibration motors 32 are installed on the outer side of the transparent cup 34 at positions corresponding to the first inclined screen 42, the second inclined screen 41, and the third inclined screen 40, respectively. The power output end of each high-frequency vibration motor 32 extends into the transparent cup 34 and contacts the bottom of the first inclined screen 42, the second inclined screen 41, and the third inclined screen 40, respectively. The transparent cup 34 has discharge holes at positions corresponding to the first inclined screen 42, the second inclined screen 41, and the third inclined screen 40, respectively. Each discharge hole is connected to a guide rail 43, and a classification collection box 44 is correspondingly installed at the free end of the guide rail 43. Each classification collection box 44 is fixedly installed on the inner wall of the solder box 23. The aperture sizes of the first inclined screen 42, the second inclined screen 41, and the third inclined screen 40 are arranged from largest to smallest as follows: third inclined screen 40 > second inclined screen 41 > first inclined screen 42. The inclination angles of the first inclined screen 42, the second inclined screen 41, and the third inclined screen 40 are set to 5°-15°; the inclination directions of the first inclined screen 42 and the second inclined screen 41 are opposite, and the inclination directions of the second inclined screen 41 and the third inclined screen 40 are also opposite. This structural arrangement allows for the separation and classification of flux particles of different sizes. In this embodiment, the vibration frequency of the high-frequency vibration motor 32 is set to 20-50Hz.

[0031] The slag suction pipe 14 is connected to the slag suction port 27 through the shape memory metal pipe 45. The shape memory metal pipe 45 makes it easy to adjust the angle of the slag suction port 27 according to the position of the welding surface.

[0032] An anti-magnetic, weld-resistant inductive proximity sensor 46 is installed inside the transparent cup 34, and the anti-magnetic, weld-resistant inductive proximity sensor 46 is electrically connected to the control box 21. Based on the detection of the amount of weld slag accumulation by the anti-magnetic, weld-resistant inductive proximity sensor 46, the suction force, vibration frequency and magnetic roller speed are automatically adjusted by the intelligent control unit, and the human-machine interface is realized through the electronic display screen 11.

[0033] The operating principle of this embodiment is as follows: The equipment is started via the control box 21, the vehicle body 10 moves, and the solder in the solder box 23 enters the flux inlet 12 through the flux pipe 13 and the welding head covers the weld. The welding wire in the wire feeding pipe 16 enters the welding head and melts under the action of the electric arc. Under the force of the shaking device box 22, the welding head and welding wire move left and right, thus allowing the welding wire and flux to cover the weld laterally. After welding is completed, the negative pressure slag suction unit, magnetic separation unit, vibrating screening unit, and dust removal unit are started. The slag suction port 27 is close to the weld area, and the negative pressure air source generates suction to draw the slag along the slag suction pipe 14 into the transparent cup 34. The slag in the transparent cup 34 first passes through two counter-rotating electromagnetic rollers 30. Metal fragments are attracted by the electromagnetic rollers 30 and brushed into the iron filings guide track 29 by the electric roller brush 37. The iron filings then enter the iron filings collection box 28. The remaining slag enters the vibrating screening unit for stratification. Inclined screen 42, second inclined screen 41, and third inclined screen 40 classify welding slag according to particle size. Qualified flux falls into the flux box 23 and can fall along the flux pipe 13 to the flux port 12, and then be reused through the welding head. Oversized particles enter the classification collection box 44 along the corresponding guide track 43. Then, the dust-laden gas is initially removed by the cyclone separator 38 and then purified a second time by the HEPA filter 39. The clean air is discharged through the air outlet pipe 25, thereby ensuring a good working environment and protecting the health of the operators.

[0034] This embodiment incorporates a negative pressure slag suction unit, a magnetic separation unit, a vibrating screening unit, and a dust removal unit. Its modular design facilitates maintenance and functional expansion. The negative pressure slag suction unit, magnetic separation unit, and vibrating screening unit work synergistically to improve the efficiency of metal-nonmetal separation, achieving excellent separation results. This enables efficient separation and sorting of flux, slag, and metal debris, increasing the flux reuse rate. The coordinated operation of the negative pressure slag suction unit and the dust removal unit enhances dust suppression and reduces environmental pollution.

[0035] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A submerged arc welding trolley with flux recovery function, comprising a wheeled body (10), a main support rod (19) mounted on the body (10), a wire spool (20) connected to the main support rod (19) via a side support rod (26), a control box (21) mounted on one side of the wire spool (20), a motor (31) mounted on one side of the upper surface of the body (10) and connected to the control box (21), an electronic display screen (11) mounted on the motor (31), a vibration device box (22) electrically connected to the control box (21), and a wire feeding tube (16) with one end mounted at the bottom of the vibration device box (22), wherein the control box (21) is provided with an intelligent control unit, characterized in that: It also includes a negative pressure slag suction unit, a magnetic separation unit, a vibrating screening unit, and a dust removal unit; the negative pressure slag suction unit, the magnetic separation unit, the vibrating screening unit, and the dust removal unit are connected to the control box (21); The negative pressure slag suction unit includes a solder box (23), a lower flux pipe (13), a transparent cup (34), a slag suction pipe (14), a compressed air inlet pipe (18), a negative pressure air source, and an air outlet pipe (25). The solder box (23) is connected to the main support rod (19) via a side support rod (26). The lower flux pipe (13) is connected to the bottom of the solder box (23). The shaking device box (22) is installed on one side of the outer side of the solder box (23). The other end of the wire feeding pipe (16) is located near the lower flux port (12) of the lower flux pipe (13). The transparent cup (34) is fixedly installed in the solder box (23) by a bracket. One end of the slag suction pipe (14) extends into the solder box (23) and communicates with the bottom of the transparent cup (34). The compressed air inlet pipe (18) is connected to the slag suction pipe (14) near the slag suction port (27) through the compressed air inlet pipe valve (15). The compressed air inlet pipe (18) is connected to the negative pressure air source. The top of the solder box (23) is connected to the air outlet pipe (25). The top of the transparent cup (34) is provided with a discharge port (35). A magnetic separation unit is provided inside the transparent cup (34) on the side near the slag suction pipe (14). The magnetic separation unit includes two electromagnetic rollers (30) rotating in opposite directions and two electric rollers (37) rotating in the opposite direction to the electromagnetic rollers (30) on the same side. A scrap guide rail (29) extending to the outside of the transparent cup (34) is installed below the contact gap between the electromagnetic rollers (30) and the electric rollers (37) on the same side. The discharge end of the scrap guide rail (29) is connected to the scrap collection box (28). The scrap collection box (28) is fixedly installed on the inner wall of the solder box (23). The vibrating screening unit includes a multi-layer inclined screen structure (33) and multiple high-frequency vibrating motors (32); the multi-layer inclined screen structure (33) is installed in the upper part of the inner cavity of the transparent cup (34), and the high-frequency vibrating motors (32) are installed in the lower part of the multi-layer inclined screen structure (33); The dust removal unit includes an integrated cyclone separator (38) and a HEPA filter (39). The integrated cyclone separator (38) is fixedly installed at the top air outlet (24) of the solder box (23). The HEPA filter (39) is installed on the air outlet side of the integrated cyclone separator (38). The air outlet end of the HEPA filter (39) is connected to the air outlet pipe (25).

2. The submerged arc welding trolley with flux recovery function according to claim 1, characterized in that: An electromagnetic roller drive motor connected to the electromagnetic roller (30) is installed outside the transparent cup (34), and the electromagnetic roller drive motor is electrically connected to the frequency converter; an electric brush drive motor connected to the electric roller brush (37) is installed outside the transparent cup (34).

3. The submerged arc welding trolley with flux recovery function according to claim 1, characterized in that: The multi-layer inclined screen structure (33) includes, from bottom to top, a first inclined screen (42), a second inclined screen (41), and a third inclined screen (40). High-frequency vibration motors (32) are installed on the outer side of the transparent cup (34) at positions corresponding to the first inclined screen (42), the second inclined screen (41), and the third inclined screen (40). The power output end of each high-frequency vibration motor (32) extends into the transparent cup (34) and contacts the bottom of the first inclined screen (42), the second inclined screen (41), and the third inclined screen (40). The transparent cup (34) has a discharge hole at a position corresponding to the first inclined screen (42), the second inclined screen (41), and the third inclined screen (40). Each discharge hole is connected to a guide rail (43). A classification collection box (44) is provided at the free end of each guide rail (43). Each classification collection box (44) is fixedly installed on the inner wall of the solder box (23).

4. A submerged arc welding trolley with flux recovery function according to claim 3, characterized in that: The aperture sizes of the first inclined screen (42), the second inclined screen (41), and the third inclined screen (40) are set from largest to smallest as follows: third inclined screen (40) > second inclined screen (41) > first inclined screen (42).

5. A submerged arc welding trolley with flux recovery function according to claim 1, characterized in that: A flux valve (17) is installed on the side of the flux tube (13) near the solder box (23).

6. A submerged arc welding trolley with flux recovery function according to claim 3, characterized in that: The tilt angles of the first tilting screen (42), the second tilting screen (41), and the third tilting screen (40) are set to 5°-15°; the tilting directions of the first tilting screen (42) and the second tilting screen (41) are opposite, and the tilting directions of the second tilting screen (41) and the third tilting screen (40) are opposite.

7. A submerged arc welding trolley with flux recovery function according to claim 1, characterized in that: The slag suction pipe (14) is connected to the slag suction port (27) through a shape memory metal pipe (45).

8. A submerged arc welding trolley with flux recovery function according to claim 1, characterized in that: An anti-magnetic and anti-welding inductive proximity sensor (46) is installed inside the transparent cup (34), and the anti-magnetic and anti-welding inductive proximity sensor (46) is electrically connected to the control box (21).

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