A powder control device and a flux-cored welding wire powder winding machine

Abstract

This invention discloses a powder control device and a flux-cored welding wire winding machine. The device includes a powder control seat with a ratchet for smoothing and compacting flux powder contained within a U-shaped welding strip. The ratchet includes a ratchet body and pawls evenly distributed circumferentially on the outer side of the ratchet body. Each pawl includes a flat surface and an arc surface, with chamfered edges on both sides of the arc surface. The height of the ratchet is adjustable, and it can rotate around its own axis. When the ratchet rotates, the lowest point of the ratchet rotates in the opposite direction to the forward direction of the U-shaped welding strip, and the flat surface of the pawl at the lowest point faces the incoming U-shaped welding strip and the flux powder it contains, preventing excess flux powder from falling off. The flux-cored welding wire winding machine includes, in sequence, a strip feeding mechanism, a U-shaped roller seat, a powder hopper, the aforementioned powder control device, a wire winding forming die seat, and a winding mechanism.

Description

Technical Field

[0001] This invention relates to the field of flux-cored wire forming technology, specifically to a powder control device and a flux-cored wire winding machine including the powder control device. Background Technology

[0002] The most difficult part to control during the manufacturing process of flux-cored welding wire is the flux powder content in the flux core. Because the flux powder has a low density and is relatively loosely packed, it is easy to "bridge" and create pores in the flux-cored welding wire, resulting in poor welding wire quality. A device that can stably control the flux powder content and compact the flux powder in the flux core is needed to solve this problem.

[0003] Patent specification CN201645063U discloses a fine-diameter flux-cored wire manufacturing equipment that solves the problem of precise quantitative flux addition. This equipment consists of a roller device, a flux addition mechanism, a seam roller device, a wire drawing and winding device, and a PLC programmable controller. The flux addition mechanism includes a flux storage tank with a flux hopper below it, and a quantitative flux feeding belt below the hopper. The quantitative flux feeding belt is driven by a motor, and the PLC programmable controller precisely controls the motor speed via a frequency converter. Using this structure, the PLC programmable controller precisely controls the motor speed via the frequency converter, thus precisely controlling the speed of the flux feeding belt, and further controlling the amount of flux added to ensure a stable and accurate flux-cored wire addition rate. However, this patented fine-diameter flux-cored wire manufacturing equipment cannot compact and smooth the flux powder, which can easily cause voids within the flux-cored wire, reducing its quality.

[0004] Patent specification CN101837527A discloses a self-controlled powder feeding device and method for flux-cored wire. The method includes primary powder feeding, secondary powder feeding, an adjustable center distance and self-compensating tension of the powder conveying belt, and a dust removal step. This self-controlled powder feeding device replaces the primary, uncontrollable powder feeding mechanism with a secondary self-controlled powder feeding mechanism. The powder feeding is a belt conveyor mechanism with an adjustable center distance and self-compensating tension, and the powder feeding device is a fully enclosed dust collection structure. The powder feeding mechanism in this patented self-controlled powder feeding device for flux-cored wire is relatively complex and also cannot compact and smooth the flux powder. Summary of the Invention

[0005] This invention provides a powder control device and a flux-cored wire winding machine including the powder control device. This invention is compact, small, simple, practical, easy to operate, and ensures product quality. The winding process involved in this invention involves rolling the welding strip into a U-shape on a machine, adding flux powder, smoothing and compacting the flux powder, and removing excess flux powder (excess flux powder can be recycled). Then, it is die-rolled and closed into an O-shaped tubular flux-cored wire or a flux-cored wire containing a central welding wire.

[0006] A powder control device includes a powder control seat, on which a powder control ratchet is provided for smoothing and compacting the flux powder contained in the U-shaped solder strip;

[0007] The powder control ratchet includes a ratchet body and pawls evenly distributed around the outside of the ratchet body. Each pawl includes a flat surface and an arc surface, and the two sides of the arc surface are chamfered.

[0008] The height of the powder control ratchet is adjustable and it can rotate around its own axis. When the powder control ratchet rotates, the rotation direction of the lowest point of the powder control ratchet is opposite to the forward direction of the U-shaped welding strip, and the plane of the pawl at the lowest point of the powder control ratchet faces the conveyed U-shaped welding strip and the flux powder it contains, and can prevent excess flux powder from falling off.

[0009] In one embodiment, a rotation mechanism is provided on the powder control seat, and the powder control ratchet is eccentrically set on the rotation mechanism. When the rotation mechanism rotates, the vertical height position of the powder control ratchet changes accordingly.

[0010] In one embodiment, the powder control device further includes a first pressure roller and a first support roller respectively.

[0011] A gap is left between the first pressure roller and the first support roller to allow the U-shaped welding strip containing flux powder to pass through. The first pressure roller and the first support roller can rotate accordingly to cooperate with the forward movement of the U-shaped welding strip containing flux powder, which helps to assist the U-shaped welding strip to move forward at a better uniform speed.

[0012] Furthermore, the first pressure roller can be connected to the powder control seat via the first connecting arm. The first connecting arm can rotate around its connection point with the powder control seat, thereby adjusting the vertical height of the first pressure roller connected to it.

[0013] The first support roller can be connected to the powder control seat via the second connecting arm. The second connecting arm can rotate around the connection point between itself and the powder control seat, thereby adjusting the vertical position of the first support roller connected to it.

[0014] The present invention also provides a flux-cored welding wire powder winding machine, comprising a tape feeding mechanism, a U-shaped roller seat, a powder hopper, the powder control device, a wire winding forming die seat, and a winding mechanism arranged in sequence;

[0015] The unwinding mechanism is used to unwind flat welding strip;

[0016] U-shaped roll holders are used to roll flat welding strips into U-shaped welding strips in one step or in several steps;

[0017] The powder hopper is used to add flux powder into the U-shaped groove of the U-shaped welding strip;

[0018] The wire forming die is used to roll the U-shaped welding strip containing flux powder into a flux-cored welding wire;

[0019] The winding mechanism is used to wind up flux-cored welding wire.

[0020] The flux-cored welding wire winding machine may also include a first auxiliary powder control device located between the powder control device and the winding forming die.

[0021] In one embodiment, the first auxiliary powder control device includes a first auxiliary powder control seat and a second pressure roller, a second support roller, and a pressure rod arranged sequentially along the forward direction of the U-shaped solder strip containing flux powder.

[0022] In one embodiment, the second pressure roller and the second support roller are arranged correspondingly, with a gap between them for the U-shaped solder strip containing flux powder to pass through. The second pressure roller and the second support roller can rotate accordingly in coordination with the forward movement of the U-shaped solder strip containing flux powder, which helps to assist the U-shaped solder strip to move forward at a better uniform speed.

[0023] The second pressure roller can be connected to the first auxiliary powder control seat via the third connecting arm. The third connecting arm can rotate around the connection point between itself and the first auxiliary powder control seat, thereby adjusting the vertical position of the second pressure roller connected to it.

[0024] In one embodiment, the second support roller is adjustablely fixedly connected to the first auxiliary powder control seat.

[0025] In one embodiment, one end of the pressure rod is fixedly connected to the first auxiliary powder control seat, and the other end is a movable end used to compact the flux powder contained in the U-shaped solder strip. The pressure rod can rotate around its connection point with the first auxiliary powder control seat as an axis, thereby adjusting the vertical height of the movable end.

[0026] In one embodiment, the flux-cored welding wire winding machine further includes a second auxiliary powder control device disposed between the first auxiliary powder control device and the winding forming die.

[0027] In one embodiment, the second auxiliary powder control device includes a second auxiliary powder control seat and a correspondingly arranged third pressure roller and third support roller.

[0028] In one embodiment, a gap is left between the third pressure roller and the third support roller for the U-shaped welding strip containing flux powder to pass through. The third pressure roller and the third support roller can rotate accordingly in coordination with the forward movement of the U-shaped welding strip containing flux powder, which helps to assist the U-shaped welding strip to move forward at a better uniform speed.

[0029] The third pressure roller can be connected to the second auxiliary powder control seat via the fourth connecting arm. The fourth connecting arm can rotate around its connection point with the second auxiliary powder control seat, thereby adjusting the vertical position of the third pressure roller connected to it.

[0030] In one embodiment, the third support roller is adjustablely fixedly connected to the second auxiliary powder control seat.

[0031] In one embodiment, the flux-cored wire winding machine further includes a trough for collecting fallen flux powder. Furthermore, the powder hopper, powder control device, first auxiliary powder control device (if any), and second auxiliary powder control device (if any) can all be located above the trough. The trough can hold flux powder falling from the powder hopper, powder control device, first auxiliary powder control device (if any), and second auxiliary powder control device (if any), and this flux powder can be collected and added back to the powder hopper for reuse.

[0032] In one embodiment, the U-shaped roll holder includes one or more sets of corresponding upper and lower cams and concave wheels; the height of the cams is adjustable.

[0033] In one embodiment, a cam is disposed within a cam seat, and the cam seat is provided with a handle that can adjust the height of the cam seat and thus adjust the distance and tension between the cam and the concave wheel.

[0034] In one embodiment, the winding mechanism includes a motor, a reducer, and a winding drum connected in sequence. The winding drum can rotate under the drive of the motor to wind the flux-cored welding wire output from the wire forming die.

[0035] In one embodiment, the flux-cored wire winding machine further includes a strip release wheel seat disposed between the strip release mechanism and the U-shaped roller seat.

[0036] In one embodiment, the flux-cored wire winding machine further includes a fourth support roller located at the rear end of the winding forming die, which can stabilize the flux-cored wire output from the winding forming die.

[0037] In one embodiment, the flux-cored welding wire coiling machine further includes a welding wire unwinding mechanism for unwinding the center welding wire. The center welding wire unwinding by the welding wire unwinding mechanism is inserted into the U-shaped groove of the U-shaped welding strip containing flux powder at the front end of the wire coiling forming die. The flux-cored welding wire output from the rear end of the wire coiling forming die contains the center welding wire.

[0038] Compared with the prior art, the beneficial effects of this invention are as follows:

[0039] The powder control device of the present invention and the flux-cored welding wire winding machine including the powder control device are inexpensive, simple in structure, easy to manufacture, reliable in control, novel and practical. They can efficiently smooth and compact the flux powder contained in the U-shaped welding strip and remove excess flux powder. At the same time, the amount of flux powder smoothed and compacted in the U-shaped welding strip can be adjusted, and excess flux powder can be recycled. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the main structure of the powder control device in Example 1;

[0041] Figure 2 This is a side view of the powder control device in Example 1 (the first pressure roller and the first connecting arm are omitted).

[0042] Figure 3 This is a schematic diagram of the powder control ratchet in the powder control device of Example 1;

[0043] Figure 4 This is a schematic diagram of the structure of the flux-cored welding wire winding machine in Example 3;

[0044] Figure 5 This is a schematic diagram of the U-shaped roller seat in the flux-cored wire winding machine of Example 3;

[0045] Figure 6 This is a schematic diagram of the first auxiliary powder control device in the flux-cored wire winding machine of Example 3;

[0046] Figure 7 This is a schematic diagram of the second auxiliary powder control device in the flux-cored wire winding machine of Example 3;

[0047] Figure 8 This is a schematic diagram of the structure of the flux-cored welding wire winding machine in Example 4. Detailed Implementation

[0048] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0049] Example 1

[0050] See Figure 1 , Figure 2 The powder control device in this embodiment includes a powder control base 101 and correspondingly arranged first pressure roller 106 and first support roller 105. A rotation mechanism 104 is provided on the powder control base 101, which can specifically be a rotating disk. A powder control ratchet 103 is eccentrically arranged on the rotation mechanism 104. The powder control ratchet 103 is used to smooth and compact the flux powder 108 contained in the U-shaped solder strip 17.

[0051] See Figures 1-3The powder control ratchet 103 includes a ratchet body 30 and eight pawls 31 evenly distributed circumferentially on the outer side of the ratchet body 30. Each pawl 31 includes a flat surface 32 and an arc surface 33, with chamfered edges on both sides of the arc surface 33. The powder control ratchet 103 can rotate around its own axis. When the powder control ratchet 103 rotates, the rotation direction of the lowest point of the powder control ratchet 103 is opposite to the forward direction of the U-shaped welding strip 17. The flat surface 32 of the lowest pawl 31 of the powder control ratchet 103 faces the conveyed U-shaped welding strip 17 and the flux powder it contains, and can prevent excess flux powder from falling off. The arc surface 33 on the back can smooth and compact the flux powder contained in the U-shaped welding strip 17. Due to the arc design of the arc surface 33 itself and the chamfered design on both sides, it can match the U-shaped groove of the U-shaped welding strip 17 on the one hand, and reduce powder adhesion on the surface of the pawl 31 on the other hand. For example, Figure 1 As shown, when the U-shaped solder ribbon 17 containing flux powder moves from right to left, the powder control ratchet 103 rotates counterclockwise.

[0052] See Figure 1 When the self-rotating mechanism 104 rotates, the vertical position of the powder control ratchet 103 changes accordingly. Figure 1 The image shows the trajectory 102 of the powder-controlling ratchet 103 revolving around the center of the rotating mechanism 104. (Example, in...) Figure 1 In the indicated state, when the self-rotating mechanism 104 rotates clockwise, the height position of the powder control ratchet 103 decreases accordingly, and the pawl 31 penetrates into the U-shaped groove of the U-shaped solder strip 17. The plane 32 blocks more of the unloaded flux powder, and the amount of residual flux powder that is smoothed and compacted in the U-shaped solder strip 17 decreases. When the self-rotating mechanism 104 rotates counterclockwise, the height position of the powder control ratchet 103 increases accordingly, and the plane 32 blocks less of the unloaded flux powder, and the amount of residual flux powder that is smoothed and compacted in the U-shaped solder strip 17 increases. In this way, the final amount of flux powder contained in the U-shaped solder strip 17 can be adjusted.

[0053] See Figure 1 , Figure 2 The rotation mechanism 104 and its powder-controlling ratchet 103 are located at the front end of the first pressure roller 106 and the first support roller 105. A gap is left between the first pressure roller 106 and the first support roller 105 to allow the U-shaped solder strip 17 containing flux powder to pass through. The first pressure roller 106 and the first support roller 105 can rotate accordingly in coordination with the forward movement of the U-shaped solder strip 17 containing flux powder. For example, as... Figure 1 As shown, when the U-shaped welding strip 17 containing flux powder moves from right to left, the first pressure roller 106 rotates clockwise and the first support roller 105 rotates counterclockwise.

[0054] See Figure 1The first pressure roller 106 is connected to the powder control base 101 via the first connecting arm 108. The first connecting arm 108 can rotate around its connection point with the powder control base 101, thereby adjusting the vertical height of the first pressure roller 106 connected to it to match the thickness of the flux powder after it has been smoothed and compacted by the powder control ratchet 103. The first support roller 105 is connected to the powder control base 101 via the second connecting arm 107. The second connecting arm 107 can rotate around its connection point with the powder control base 101, thereby adjusting the vertical height of the first support roller 105 connected to it to ensure the straightness of the U-shaped welding strip 17.

[0055] The first pressure roller 106 and the first support roller 105 work together to support the U-shaped welding strip 17 and ensure its straightness. On the other hand, they can further smooth and compact the flux powder contained in the U-shaped welding strip 17.

[0056] Example 2

[0057] The powder control device in this embodiment is the same as that in embodiment 1, except that it lacks the first pressure roller 106, the first support roller 105, the first connecting arm 108, and the second connecting arm 107.

[0058] Example 3

[0059] See Figure 4 The flux-cored welding wire winding machine of this embodiment includes a material trough 16 and a feeding mechanism 1, a restoring wheel seat 3, a U-shaped roller seat 4, a powder hopper 5, a powder control device 6, a first auxiliary powder control device 7, a second auxiliary powder control device 8, a wire winding forming die seat 9, and a winding mechanism 11 arranged in sequence.

[0060] The unwinding mechanism 1 is used to unwind the coiled flat welding strip 2, which can be a unwinding reel.

[0061] The heating strip holder 3 may specifically include four H-shaped grooved pulleys, which allow the welding strip to undergo physical deformation through motion during heating.

[0062] The U-shaped roll holder 4 is used to roll the flat welding strip 2 into a U-shaped welding strip 17 in one step. See also Figure 5 The U-shaped roll holder 4 includes a set of vertically corresponding cams 402 and concave wheels 403. The height of the cams 402 is adjustable. Specifically, the cams 402 are located inside a cam holder, and the cam holder is provided with a handle 401 that can adjust the height of the cam holder, thereby adjusting the distance and tension between the cams 402 and the concave wheels 403. Of course, depending on the actual situation, the U-shaped roll holder 4 may also include multiple sets of vertically corresponding cams 402 and concave wheels 403. The specific structure and connection relationship of the cams 402 and concave wheels 403 can be referred to the description above. With this design, the U-shaped roll holder 4 can roll the flat welding strip 2 into a U-shaped welding strip 17 in stages.

[0063] The powder hopper 5 is used to add flux powder into the U-shaped groove of the U-shaped welding strip 17.

[0064] The powder control device 6 is used to smooth and compact the flux powder contained in the U-shaped solder strip 17 and prevent excess flux powder from falling off. Specifically, the powder control device of Example 1 or Example 2 can be used.

[0065] The first auxiliary powder control device 7 and the second auxiliary powder control device 8 are used to further smooth and compact the flux powder contained in the U-shaped solder strip 17, and at the same time provide support for the U-shaped solder strip 17 to ensure the straightness of the U-shaped solder strip 17.

[0066] See Figure 6 The first auxiliary powder control device 7 includes a first auxiliary powder control base 202 and a second pressure roller 201, a second support roller 203, and a pressure rod 204 arranged sequentially along the forward direction of the U-shaped solder strip 17 containing flux powder. The second pressure roller 201 and the second support roller 203 are correspondingly arranged and have a similar working principle and function to the first pressure roller 106 and the first support roller 105 in the powder control device of Embodiment 1. Specifically, a gap is left between the second pressure roller 201 and the second support roller 203 to allow the U-shaped solder strip 17 containing flux powder to pass through, and the second pressure roller 201 and the second support roller 203 can rotate accordingly in coordination with the forward movement of the U-shaped solder strip 17 containing flux powder. For example, as shown in the example... Figure 6 As shown, when the U-shaped welding strip 17 containing flux powder moves from right to left, the second pressure roller 201 rotates clockwise and the second support roller 203 rotates counterclockwise.

[0067] See Figure 6 The second pressure roller 201 is connected to the first auxiliary powder control seat 202 via a third connecting arm 205. The third connecting arm 205 can rotate around its connection point with the first auxiliary powder control seat 202, thereby adjusting the vertical height of the connected second pressure roller 201 to match the thickness of the flux powder after being smoothed and compacted by the powder control device 6. The second support roller 203 is adjustablely fixedly connected to the first auxiliary powder control seat 202 to ensure the straightness of the U-shaped solder strip 17. One end of the pressure rod 204 is fixedly connected to the first auxiliary powder control seat 202, and the other end is a movable end, used to further compact the flux powder contained in the U-shaped solder strip 17. The pressure rod 204 can rotate around its connection point with the first auxiliary powder control seat 202, thereby adjusting the vertical height of the movable end to match the thickness of the flux powder after being smoothed and compacted by the second pressure roller 201.

[0068] See Figure 7The second auxiliary powder control device 8 includes a second auxiliary powder control base 302 and correspondingly arranged third pressure roller 301 and third support roller 303. The third pressure roller 301 and third support roller 303 have similar working principles and functions to the first pressure roller 106 and first support roller 105 in the powder control device of Embodiment 1. Specifically, a gap is left between the third pressure roller 301 and the third support roller 303 to allow the U-shaped solder strip 17 containing flux powder to pass through. The third pressure roller 301 and the third support roller 303 can rotate accordingly in coordination with the forward movement of the U-shaped solder strip 17 containing flux powder. For example, as... Figure 7 As shown, when the U-shaped welding strip 17 containing flux powder moves from right to left, the third pressure roller 301 rotates clockwise and the third support roller 303 rotates counterclockwise.

[0069] See Figure 7 The third pressure roller 301 is connected to the second auxiliary powder control seat 302 via the fourth connecting arm 304. The fourth connecting arm 304 can rotate around its connection point with the second auxiliary powder control seat 302, thereby adjusting the vertical height of the connected third pressure roller 301 to match the thickness of the flux powder after it has been smoothed and compacted by the first auxiliary powder control device 7. The third support roller 303 is adjustablely fixedly connected to the second auxiliary powder control seat 302 to ensure the straightness of the U-shaped solder strip 17.

[0070] The feed trough 16 is used to collect fallen flux powder. The powder hopper 5, the powder control device 6, the first auxiliary powder control device 7, and the second auxiliary powder control device 8 are all located above the feed trough 16. The flux powder falling from the powder hopper 5, the powder control device 6, the first auxiliary powder control device 7, and the second auxiliary powder control device 8 can all be collected by the feed trough 16 and added back to the feed hopper 5 for reuse.

[0071] The wire winding die 9 is used to wind the U-shaped welding strip 17 containing flux powder into a flux-cored welding wire. The rear end of the wire winding die 9 is provided with a fourth support roller 10, which can stabilize the flux-cored welding wire output from the wire winding die.

[0072] The winding mechanism 11 is used to wind up the flux-cored welding wire. See also Figure 4 The winding mechanism 11 includes a motor 15, a reducer 14 and a winding drum 11 connected in sequence. The winding drum 11 can rotate under the drive of the motor 15 to wind the flux-cored welding wire output from the wire forming die 9.

[0073] Example 4

[0074] See Figure 8The flux-cored welding wire winding machine of this embodiment, based on embodiment 3, further includes a welding wire unwinding mechanism 12 for unwinding the center welding wire 13. The center welding wire 13 unwinding by the welding wire unwinding mechanism 12 is inserted into the U-shaped groove of the U-shaped welding strip 17 containing flux powder at the front end of the winding forming die 9. The flux-cored welding wire output from the rear end of the winding forming die 9 contains the center welding wire 13.

[0075] Furthermore, it should be understood that after reading the above description of the present invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A flux-cored welding wire winding machine, characterized in that, It includes a tape feeding mechanism (1), a U-shaped roller seat (4), a powder hopper (5), a powder control device (6), a wire winding forming die seat (9), and a winding mechanism arranged in sequence; The unwinding mechanism (1) is used to unwind the flat welding strip (2); The U-shaped roll holder (4) is used to roll flat welding strip (2) into U-shaped welding strip (17) in one step or in steps. The powder hopper (5) is used to add flux powder into the U-shaped groove of the U-shaped welding strip (17); The wire forming die (9) is used to roll the U-shaped welding strip (17) containing flux powder into a flux-cored welding wire; The winding mechanism is used to wind up flux-cored welding wire; The powder control device (6) includes a powder control seat (101), and a powder control ratchet (103) is provided on the powder control seat (101) for smoothing and compacting the flux powder contained in the U-shaped welding strip (17). The powder control ratchet (103) includes a ratchet body (30) and pawls (31) evenly distributed around the outside of the ratchet body (30). Each pawl (31) includes a flat surface (32) and an arc surface (33). The two sides of the arc surface (33) are chamfered. The height of the control ratchet (103) is adjustable and it can rotate around its own axis. When the control ratchet (103) rotates, the rotation direction of the lowest point of the control ratchet (103) is opposite to the forward direction of the U-shaped welding strip (17), and the plane (32) of the pawl (31) at the lowest point of the control ratchet (103) faces the conveyed U-shaped welding strip (17) and the flux powder contained therein, and can prevent the discharge of excess flux powder. A self-rotating mechanism (104) is provided on the powder control seat (101), and the powder control ratchet (103) is eccentrically set on the self-rotating mechanism (104). When the self-rotating mechanism (104) rotates, the vertical height position of the powder control ratchet (103) changes accordingly. The flux-cored welding wire winding machine also includes a welding wire unwinding mechanism (12) for unwinding the center welding wire (13). The center welding wire (13) unwinding by the welding wire unwinding mechanism (12) is inserted into the U-shaped groove of the U-shaped welding strip (17) containing flux powder at the front end of the winding forming die (9). The flux-cored welding wire output from the rear end of the winding forming die (9) contains the center welding wire (13).

2. The flux-cored welding wire winding machine according to claim 1, characterized in that, The powder control device also includes a first pressure roller (106) and a first support roller (105) respectively. A gap is left between the first pressure roller (106) and the first support roller (105) for the U-shaped solder strip (17) containing flux powder to pass through. The first pressure roller (106) and the first support roller (105) can rotate accordingly in coordination with the forward movement of the U-shaped solder strip (17) containing flux powder.

3. The flux-cored welding wire winding machine according to claim 2, characterized in that, The first pressure roller (106) is connected to the powder control seat (101) via the first connecting arm (108). The first connecting arm (108) can rotate around the connection point between itself and the powder control seat (101) to adjust the vertical position of the first pressure roller (106) connected to it. The first support roller (105) is connected to the powder control seat (101) via the second connecting arm (107). The second connecting arm (107) can rotate around the connection point between itself and the powder control seat (101) to adjust the vertical position of the first support roller (105) connected to it.

4. The flux-cored welding wire winding machine according to claim 1, characterized in that, The flux-cored welding wire winding machine also includes a first auxiliary powder control device (7) located between the powder control device (6) and the winding forming die (9). The first auxiliary powder control device (7) includes a first auxiliary powder control seat (202) and a second pressure roller (201), a second support roller (203) and a pressure rod (204) arranged sequentially along the forward direction of the U-shaped welding strip (17) containing flux powder. The second pressure roller (201) and the second support roller (203) are arranged correspondingly, with a gap between them for the U-shaped solder strip (17) containing flux powder to pass through. The second pressure roller (201) and the second support roller (203) can rotate accordingly in coordination with the forward movement of the U-shaped solder strip (17) containing flux powder. The second pressure roller (201) is connected to the first auxiliary powder control seat (202) via the third connecting arm (205). The third connecting arm (205) can rotate around the connection point between itself and the first auxiliary powder control seat (202) to adjust the vertical position of the second pressure roller (201) connected to it. The second support roller (203) is adjustablely fixedly connected to the first auxiliary powder control seat (202); One end of the pressure rod (204) is fixedly connected to the first auxiliary powder control seat (202), and the other end is a movable end, which is used to compact the flux powder contained in the U-shaped welding strip (17); the pressure rod (204) can rotate around the connection point with the first auxiliary powder control seat (202) as the axis, thereby adjusting the vertical height position of the movable end.

5. The flux-cored welding wire winding machine according to claim 4, characterized in that, The flux-cored welding wire winding machine also includes a second auxiliary powder control device (8) located between the first auxiliary powder control device (7) and the winding forming die (9). The second auxiliary powder control device (8) includes a second auxiliary powder control seat (302) and a corresponding third pressure roller (301) and a third support roller (303). A gap is left between the third pressure roller (301) and the third support roller (303) for the U-shaped welding strip (17) containing flux powder to pass through. The third pressure roller (301) and the third support roller (303) can rotate accordingly in coordination with the forward movement of the U-shaped welding strip (17) containing flux powder. The third pressure roller (301) is connected to the second auxiliary powder control seat (302) through the fourth connecting arm (304). The fourth connecting arm (304) can rotate around the connection point between itself and the second auxiliary powder control seat (302) to adjust the vertical position of the third pressure roller (301) connected to it. The third support roller (303) is adjustablely fixedly connected to the second auxiliary powder control seat (302).

6. The flux-cored welding wire winding machine according to claim 5, characterized in that, The flux-cored wire winding machine also includes a trough (16) for collecting fallen flux powder. The powder hopper (5), powder control device (6), first auxiliary powder control device (7) and second auxiliary powder control device (8) are all located above the trough (16).

7. The flux-cored welding wire winding machine according to claim 1, characterized in that, The U-shaped roll holder (4) includes one or more sets of upper and lower corresponding cams (402) and concave wheels (403); the height of the cam (402) is adjustable; the cam (402) is set in the cam holder, and the cam holder is provided with a handle (401) that can adjust the height of the cam holder and thus adjust the distance and tightness of the cam (402) and the concave wheel (403). The winding mechanism includes a motor (15), a reducer (14) and a winding drum (11) connected in sequence. The winding drum (11) can rotate under the drive of the motor (15) to wind the flux-cored wire output from the wire forming die (9).

8. The flux-cored welding wire winding machine according to any one of claims 1 to 7, characterized in that, The flux-cored welding wire coiling machine also includes: A belt-receiving wheel seat (3) is located between the belt feeding mechanism (1) and the U-shaped roll seat (4); The fourth support roller (10) is located at the rear end of the wire winding forming mold base (9).

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