Welding wire flux core filling device and filling method

Abstract

The invention relates to the technical field of welding wire machining, and provides a welding wire flux core filling device and a filling method.The welding wire flux core filling device comprises two baffles which are located on the front side and the rear side of an avoiding interval correspondingly; the two first discharging heads are used for filling the steel strips on the upper side and the lower side correspondingly, and the discharging direction of the first discharging heads is the same as the moving direction of the steel strips. The two steel belts are located between the two guide roller sets, and the interval between the two guide roller sets is gradually reduced in the moving direction of the steel belts so that the filled steel belts on the upper side and the lower side can move relatively close to each other. The two shaping molds are located on the front side and the rear side of the steel belt which is moved close to each other correspondingly and used for enabling the two steel belts to be gradually shrunk from a U shape to an O shape after the steel belts are moved close to each other. By means of the technical scheme, the problems that in the prior art, only one steel belt can be filled, the machining efficiency is low, and the adjustability of the material filling capacity is low are solved.

Description

Technical Field

[0001] The invention relates to the technical field of welding wire processing, and in particular to a welding wire flux core filling device and a filling method. Background Art

[0002] Flux-cored welding wire is a kind of welding wire that is drawn by filling a certain amount of powder into a hollow tube. Generally, a steel strip is rolled into a U-shape with a filling port on the top. Driven by a power device, the steel strip moves in one direction, and the material is filled into the steel strip from the filling port using the discharge head of the filling device. Then the steel strip continues to move through a rolling mill to roll the U-shaped steel strip into an O-shape, and then it is drawn and reduced in diameter.

[0003] In the prior art, when filling the inside of a steel belt with materials, only one steel belt can be filled, resulting in low processing efficiency. In addition, the filling is performed from top to bottom, and the materials are naturally accumulated in the steel belt due to gravity. The materials cannot be higher than the upper end of the U-shaped steel belt, otherwise they will overflow directly. Alternatively, when the steel belt is rolled, the materials exceeding the upper end of the steel belt cannot enter the inside of the steel belt, resulting in waste or the need to collect excess materials for reuse. The material filling capacity in the steel belt is less adjustable, which can easily cause the materials to be loose and unreal.

[0004] In the prior art, the problem of only being able to fill one steel strip and having low processing efficiency needs to be solved in order to increase production capacity. At the same time, the adjustability of the material filling capacity needs to be improved to improve the quality of the welding wire and facilitate meeting the needs of products of different specifications. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a welding wire core filling device and a filling method in view of the above-mentioned technical deficiencies, which solves the problems of only being able to fill one steel strip, low processing efficiency, and low adjustability of the material filling capacity.

[0006] The technical solution adopted by the present invention is: to provide a welding wire core filling device, which is used to simultaneously fill materials into two steel strips symmetrically arranged up and down, and when the steel strip is in a "U" shape, it has a filling port. When filling, the two filling ports are opposite to each other up and down and there is an avoidance interval between the two filling ports, and the steel strip moves unidirectionally in the left and right directions; it is characterized by comprising:

[0007] There are two baffles, the two baffles are respectively located at the front and rear sides of the avoidance interval, and the front and rear sides of the steel belt are respectively in sliding contact with the two baffles;

[0008] A first filling pipe passes through the baffle, the first filling pipe has two first discharging heads, the two first discharging heads are respectively located in the steel strips at the upper and lower sides, the two first discharging heads are respectively used to fill the steel strips at the upper and lower sides, and the discharging direction of the first discharging heads is the same as the moving direction of the steel strip;

[0009] A guide roller group, comprising two symmetrically arranged upper and lower groups, the guide roller group being located beside the first filling tube, the two steel belts being located between the two guide roller groups, the upper guide roller group rollingly abutting against the outer wall of the upper steel belt, the lower guide roller group rollingly abutting against the outer wall of the lower steel belt, the interval between the two guide roller groups gradually narrowing along the moving direction of the steel belt, so as to make the upper and lower steel belts after filling move relatively close to each other;

[0010] The present invention provides two shaping molds, wherein the two shaping molds are respectively located at the front and rear sides of the steel strip after the movement, and the shaping mold is located in the middle between the two steel strips. The shaping mold has a guide part on the side close to the steel strip, and the upper and lower sides of the guide part both have arc-shaped guide surfaces, and the guide surfaces on the upper and lower sides are respectively used to abut against the side edges of the steel strips on the upper and lower sides, and the guide part gradually extends toward the axial direction of the steel strip along the moving direction of the steel strip, so as to make the two steel strips gradually shrink from a "U" shape to an "O" shape after the two steel strips move close to each other.

[0011] Further optimization of this technical solution also includes:

[0012] a partition plate, arranged on the baffle plate, located in the avoidance interval, and located between the two first discharge heads;

[0013] There are two pressure dividing plates, which are respectively arranged on the upper and lower sides of the partition, and the upper and lower pressure dividing plates are respectively located inside the steel belts on the upper and lower sides, and there is a gap between the pressure dividing plates and the inner wall of the steel belt;

[0014] The second filling tube is arranged on one side of the partition and located in the avoidance interval. Along the moving direction of the steel strip, there are the first filling tube, the partition, the second filling tube and the guide roller group in sequence. The second filling tube has a second discharging head, and the second discharging head is used to fill the space between the steel strips on both sides.

[0015] To further optimize the technical solution, the second filling tube has two second discharge heads, one on the upper side and the other on the lower side, and the two second discharge heads point to the inside of the steel strip on the upper and lower sides respectively.

[0016] To further optimize the technical solution, the voltage divider plate is plugged into the partition.

[0017] Further optimization of this technical solution also includes:

[0018] The packaging box, the baffle, the guide roller group and the shaping mold are all arranged in the packaging box, and the packaging box has a first plug and a second plug on the left and right sides respectively, the first plug has two oppositely arranged "U"-shaped through grooves, and the two steel strips enter the packaging box respectively from the two through grooves; the second plug has a pipe outlet hole, and the two steel strips are in an "o" shape and then pass through the pipe outlet hole.

[0019] To further optimize the technical solution, the packaging box is made of transparent plastic.

[0020] To further optimize the technical solution, the baffle and the shaping mold located on the same side are in contact with each other at their adjacent ends.

[0021] A welding wire flux core filling method is also proposed, which uses a welding wire flux core filling device to fill the welding wire flux core, including the following steps:

[0022] The first step is to arrange two "U"-shaped steel belts (1) up and down, the two baffles (2) block the front and rear sides of the avoidance interval (102), the first filling pipe (3) is located between the two steel belts (1) for filling, and the steel belts (1) gradually move in one direction;

[0023] Step 2: the steel belt (1) is filled at the first filling pipe (3), and there is material in the avoidance interval (102), the steel belt (1) moves to the guide roller group (4), and under the gradual contraction limit of the two guide roller groups (4), the two steel belts (1) gradually approach each other, the avoidance interval (102) gradually disappears, the filling ports (101) of the two steel belts (1) abut against each other, and the material in the avoidance interval (102) is pressed into the inside of the two steel belts (1);

[0024] In the third step, after the avoidance interval (102) disappears, the shaping dies (5) on the front and rear sides cooperate with the two groups of guide roller groups (4) to gradually approach each other, and the steel strip (1) located between the two shaping dies (5) still gradually approaches each other. At the same time, under the guiding action of the guide surface (5011), the two steel strips (1) gradually shrink from a "U" shape to an "o" shape.

[0025] To further optimize this technical solution, the following steps are included after the third step:

[0026] Step 4: The two "o"-shaped steel strips enter the rolling mill for compaction.

[0027] The beneficial effects of the present invention are:

[0028] 1. When the two steel belts are in a "U" shape, they are distributed up and down and have an avoidance interval. The first filling pipe can fill the materials into the two steel belts from between the two steel belts at the same time, thereby improving the processing efficiency. Under the gradually shrinking guiding restriction of the guide roller group, the two steel belts are close to each other after being filled with the materials, and the materials in the avoidance interval are pressed into the two steel belts, which will not cause the problem of overflow of materials beyond the steel belts (referring to a large amount of overflow, excluding the problem of small leakage caused by sealing problems). The existence of the materials in the avoidance interval and the fact that all the materials finally enter the two steel belts improves the adjustability of the material filling capacity.

[0029] 2. The shaping die cooperates with the guide roller group to initially shrink the steel strip from a "U" shape to an "O" shape, collect the material into the steel strip to avoid leakage of the material, and then it can enter the rolling mill for further rolling and forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 for Figure 1 The schematic diagram of the structure after removing the front baffle and the shaping mold;

[0032] Figure 3 for Figure 2 Schematic diagram of the structure after removing the steel belt;

[0033] Figure 4 for Figure 3 Schematic diagram of the front view structure in the state;

[0034] Figure 5 It is a schematic diagram of the shaping mold structure of the present invention;

[0035] Figure 6 It is a schematic diagram of the packaging box structure of the present invention;

[0036] Figure 7 for Figure 6 Schematic diagram of the left view structure in the state;

[0037] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure at the AA position;

[0038] Fig. 9 for Figure 6 State forward view structure diagram;

[0039] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure at the middle BB position;

[0040] Fig.11 for Fig. 9 Schematic diagram of the cross-sectional structure at the CC position;

[0041] Explanation of marks in the figure: 1. Steel belt; 101. Filling port; 102. Avoidance interval; 2. Baffle; 3. First filling tube; 301. First discharge head; 4. Guide roller group; 5. Shaping mold; 501. Guide part; 5011. Guide surface; 6. Partition; 601. Pressure dividing plate; 7. Second filling tube; 701. Second discharge head; 8. Packaging box; 801. First plug; 8011. Through groove; 802. Second plug; 8021. Discharge hole. DETAILED DESCRIPTION

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0044] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. For ease of description and understanding, the moving direction of the steel belt is the left-right direction, and the steel belt moves from left to right in the figure.

[0046] like Figure 1-11 As shown, a welding wire core filling device is used to simultaneously fill materials into two steel strips 1 symmetrically arranged in an upper and lower direction. When the steel strip 1 is in a "U" shape, it has a filling port 101. When filling, the two filling ports 101 are opposite to each other in the upper and lower directions and there is an avoidance interval 102 between the two filling ports 101. The steel strip 1 moves unidirectionally in the left and right directions; it is characterized by comprising:

[0047] There are two baffles 2, which are respectively located at the front and rear sides of the avoidance interval 102, and the front and rear sides of the steel belt 1 are respectively in sliding contact with the two baffles 2;

[0048] The first filling pipe 3 passes through the baffle 2. The first filling pipe 3 has two first discharging heads 301. The two first discharging heads 301 are respectively located in the steel strip 1 on the upper and lower sides. The two first discharging heads 301 are respectively used to fill the steel strip 1 on the upper and lower sides. The discharging direction of the first discharging heads 301 is the same as the moving direction of the steel strip 1.

[0049] The guide roller group 4 has two symmetrically arranged upper and lower groups. The guide roller group 4 is located beside the first filling tube 3. The two steel belts 1 are located between the two guide roller groups 4. The upper guide roller group 4 rolls against the outer wall of the upper steel belt 1, and the lower guide roller group 4 rolls against the outer wall of the lower steel belt 1. The interval between the two guide roller groups 4 gradually decreases along the moving direction of the steel belt 1, so as to make the upper and lower steel belts 1 move relatively close to each other after filling.

[0050] The shaping mold 5 has two parts. The two shaping molds 5 are respectively located on the front and rear sides of the steel strip 1 after the movement. The shaping mold 5 is located in the middle position between the two steel strips 1. The shaping mold has a guide part 501 on the side close to the steel strip 1. The upper and lower sides of the guide part 501 have arc-shaped guide surfaces 5011. The upper and lower guide surfaces 5011 are respectively used to abut against the side edges of the steel strips 1 on the upper and lower sides. The guide part 501 gradually extends toward the axial direction of the steel strip 1 along the moving direction of the steel strip 1, so as to make the two steel strips 1 gradually shrink from a "U" shape to an "o" shape after the two steel strips 1 move close to each other.

[0051] When in use, the two U-shaped steel belts 1 are arranged up and down, and can be arranged symmetrically up and down. The baffle 2 fits against the side of the steel belt 1 for sliding sealing to avoid or reduce material overflow from the front and back sides. The first filling pipe 3 is connected to the external feeding equipment, and the material enters the upper and lower steel belts 1 from the two first discharge heads 301 at the same time. The setting of the upper and lower first discharge heads 301 is conducive to the rapid and relatively uniform entry of the material into the two steel belts 1, and the discharge direction of the first discharge head 301 is in the same direction as the moving direction of the steel belt 1, which can better realize material filling and reduce the material from spraying and overflowing to the left. After the U-shaped steel belt 1 and the avoidance gap 102 in the middle are filled with materials, the steel belt 1 moves between the guide roller group 4. The guide roller group 4 may include multiple pressure rollers. The pressure rollers have annular grooves adapted to the steel belt 1, which are convenient for applying force to the steel belt 1 to form it. The pressure rollers may rotate actively or passively. The upper and lower groups of guide roller groups 4 gradually approach each other from left to right, and the steel belt 1 is restricted and gradually moves toward the middle. The two steel belts 1 eventually abut against each other, and the avoidance gap 102 disappears. The materials in the avoidance gap 102 enter the steel belts 1 on the upper and lower sides. After the steel belts 1 abut, they are still located between the two guide roller groups 4 and continue to move and approach each other. At this time, the steel belt 1 contacts the shaping molds 5 on both sides and is guided by the guide surface 5011. When the two steel belts 1 continue to approach each other, the filling port 101 gradually shrinks, so that the steel belt gradually becomes roughly "o"-shaped, completely wrapping the material in the steel belt 1.

[0052] Before and after the two steel strips 1 are U-shaped and filled, there is an escape gap 102 between the two steel strips 1, which is convenient for setting the first feeding pipe, etc., and at the same time provides more material accommodating space. When there is an escape gap 102, the front and rear baffles 2 are blocked. When the two steel strips 1 are abutted up and down, the escape gap 102 disappears, and the shaping molds 5 are set on the front and rear sides, which can still play a role in reducing material overflow. The guide part 501 of the shaping mold 5 gradually extends into the axial direction of the steel strip 1 along the moving direction of the steel strip 1, which can better make the steel strip 1 gradually compressed from U-shape to O-shape.

[0053] In the figure, the steel strips 1 need to be deformed from having an avoidance interval 102 to abutting each other. The steel strips 1 themselves have a certain deformation capacity, and under a certain length, they can be close to each other without bending or damage. In order to simplify the figure and provide a comprehensive illustration, the part where the steel strips 1 gradually approach each other in the figure does not represent the length and proportion formed by the actual length. The steel strips 1 on the left side are not limited to being parallel and horizontal, and can be tilted, and the tilt direction is the direction in which the two steel strips 1 gradually approach each other.

[0054] Furthermore, it also includes: a partition 6, which is arranged on the baffle 2, located in the avoidance interval 102, and located between the two first discharge heads 301; there are two pressure dividing plates 601, and the two pressure dividing plates 601 are respectively arranged on the upper and lower sides of the partition 6, and the upper and lower pressure dividing plates 601 are respectively located inside the steel strips 1 on the upper and lower sides, and there is a gap between the pressure dividing plates 601 and the inner wall of the steel strip 1; a second filling tube 7, which is arranged on one side of the partition 6 and located in the avoidance interval 102, and along the moving direction of the steel strip 1 are the first filling tube 3, the partition 6, the second filling tube 7 and the guide roller group 4 in sequence, the second filling tube 7 has a second discharge head 701, and the second discharge head 701 is used to fill the steel strips 1 on both sides.

[0055] When in use, the partition 6 and the pressure dividing plate 601 can increase the filling density of the material in the steel belt 1, make the material near the inner wall of the steel belt 1 more substantial, reduce pores, etc. The partition 6 is located on the right side of the first filling tube 3. After the first discharging head 301 discharges the material, the steel belt 1 moves, and the material moves with the steel belt 1. The material is blocked by the pressure dividing plate 601, and the material spreads outward and adheres to the inner wall of the steel belt 1. At this time, there is a material-free space between the two steel belts 1. The second filling tube 7 can fill the material into the material-free space, so that the space between the two steel belts 1 is filled with material. After filling on both sides and dividing the material by the pressure dividing plate 601, the material near the inner wall of the steel belt 1 can be filled more compactly.

[0056] Furthermore, the second filling pipe 7 has two upper and lower second discharge heads 701 , and the two second discharge heads 701 point to the inside of the steel strip 1 at the upper and lower sides respectively.

[0057] When in use, the discharge head is sufficient to fill the empty space, and is divided into two upper and lower second discharge heads 701, which point to the inside of the steel strip 1, so as to fill the material more quickly and evenly.

[0058] Furthermore, the voltage dividing plate 601 is plugged and arranged on the partition plate 6 .

[0059] When in use, the pressure dividing plate 601 is arranged in a square shape parallel to the steel belt 1, the end can be arc-shaped, and the cross-section can be U-shaped. The pressure dividing plate 601 is plug-connected with the partition 6, so that different pressure dividing plates 601 can be replaced according to different filling requirements, so that the material compaction degree and the amount of material added to the second filling pipe 7 are different.

[0060] Furthermore, it also includes: a packaging box 8, a baffle 2, a guide roller group 4 and a shaping mold 5 are all arranged in the packaging box 8, and the packaging box 8 has a first plug 801 and a second plug 802 on the left and right sides respectively, the first plug 801 has two relatively arranged "U"-shaped through grooves 8011, and the two steel strips 1 enter the packaging box 8 respectively from the two through grooves 8011; the second plug 802 has a pipe outlet hole 8021, and the two steel strips 1 pass through the pipe outlet hole 8021 after being in an "o" shape.

[0061] When in use, the packaging box 8 is set to facilitate the re-sealing effect to reduce the spillage of materials and pollute the environment. The two steel belts 1 enter the packaging box 8 from the through groove 8011, and after being gradually shaped by the filler and the guide roller group 4, they gradually shrink from the "U" shape to the "o" shape, and then pass through the outlet hole 8021 to the outside, and can be moved to the next process.

[0062] The two steel strips 1 can be in an "o" shape and still maintain a state of close contact up and down, and the outlet hole 8021 is in the shape of two connected circular holes. When the steel strips 1 go to the rolling mill for rolling, the two steel strips 1 can be separated and enter two rolling equipments, or the rolling equipment can be improved to roll the two steel strips 1 at the same time to improve efficiency. The material has been compacted in the steel strip 1, and the steel strip 1 has been initially sealed in an "o" shape, and the material will not overflow. A guide plate can also be added. When the upper steel strip 1 moves to the rolling mill, it moves on the guide plate. The guide plate can be grooved along the moving path to further reduce the possibility of material overflow.

[0063] Furthermore, the packaging box 8 is made of transparent plastic material.

[0064] When in use, it is easy to observe the movement and processing of the internal steel belt 1.

[0065] Furthermore, the adjacent ends of the baffle plate 2 and the shaping mold 5 on the same side abut against each other.

[0066] When in use, the baffle 2 is used to block the avoidance interval 102. When the two steel strips 1 are close to each other and the avoidance interval 102 is eliminated, the seasoning ports between the two steel strips 1 abut against each other to form a seal, and at the same time, they also enter between the shaping molds 5. During the deformation process of the steel strips 1, the two steel strips 1 always move closer to each other, and the ends of the upper and lower steel strips 1 that are close to each other are always in a state of abutting against each other or very close to each other.

[0067] In this filling device, the existing sealing technology can be used to appropriately seal the parts that need to be sealed, and this device will not be described in detail.

[0068] A method for filling a welding wire core is also proposed, which uses a filling device to fill a steel strip 1, comprising the following steps:

[0069] In the first step, two "U"-shaped steel belts 1 are arranged up and down, two baffles 2 block the front and rear sides of the avoidance interval 102, the first filling pipe 3 is located between the two steel belts 1 for filling, and the steel belts 1 gradually move in one direction;

[0070] Step 2: The steel belt 1 is filled at the first filling pipe 3, and there is material in the avoidance interval 102. The steel belt 1 moves to the guide roller group 4. Under the gradual limit of the two guide roller groups 4, the two steel belts 1 gradually approach each other, and the avoidance interval 102 gradually disappears. The filling ports 101 of the two steel belts 1 abut against each other, and the material in the avoidance interval 102 is pressed into the inside of the two steel belts 1;

[0071] In the third step, after the avoidance interval 102 disappears, the shaping molds 5 on the front and rear sides cooperate with the two sets of guide roller groups 4 to gradually approach each other, and the steel belt 1 located between the two shaping molds 5 still gradually approaches each other. At the same time, under the guiding action of the guide surface 5011, the two steel belts 1 gradually shrink from a "U" shape to an "o" shape.

[0072] The third step includes the following steps: Step 4: two "o"-shaped steel strips 1 enter the rolling mill for compaction.

[0073] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A welding wire core filling device, used for simultaneously filling materials into two steel strips (1) symmetrically arranged in an upper and lower direction, wherein the steel strip (1) is in a "U" shape and has a filling port (101), and when filling, the two filling ports (101) are opposite to each other in the upper and lower directions and there is an avoidance interval (102) between the two filling ports (101), and the steel strip (1) moves unidirectionally in the left-right direction; characterized in that: include: There are two baffles (2), the two baffles (2) are respectively located at the front and rear sides of the avoidance interval (102), and the front and rear sides of the steel belt (1) are respectively in sliding contact with the two baffles (2); A first filling pipe (3) passes through the baffle (2), the first filling pipe (3) having two first discharge heads (301), the two first discharge heads (301) being respectively located in the steel strip (1) at the upper and lower sides, the two first discharge heads (301) being respectively used to fill the steel strip (1) at the upper and lower sides, and the discharge direction of the first discharge heads (301) is the same as the moving direction of the steel strip (1); A guide roller group (4) having two symmetrically arranged upper and lower groups, wherein the guide roller group (4) is located beside the first filling tube (3), and the two steel belts (1) are located between the two guide roller groups (4); the upper guide roller group (4) rolls against the outer wall of the upper steel belt (1), and the lower guide roller group (4) rolls against the outer wall of the lower steel belt (1); the interval between the two guide roller groups (4) gradually decreases along the moving direction of the steel belt (1), so as to make the upper and lower steel belts (1) move relatively close to each other after filling; The shaping mold (5) comprises two shaping molds, the two shaping molds (5) are respectively located at the front and rear sides of the steel strip (1) after the steel strip (1) moves, the shaping mold (5) is located at the middle position between the two steel strips (1), the shaping mold (5) has a guide part (501) on the side close to the steel strip (1), the upper and lower sides of the guiding part (501) both have arc-shaped guiding surfaces (5011), the upper and lower guiding surfaces (5011) are respectively used to abut against the side edges of the steel strip (1) on the upper and lower sides, the guiding part (501) gradually extends into the axial direction of the steel strip (1) along the moving direction of the steel strip (1), and is used to make the two steel strips (1) gradually shrink from a "U" shape to an "O" shape after the two steel strips (1) move close to each other.

2. A welding wire core filling device according to claim 1, characterized in that: Also includes: A partition plate (6) is arranged on the baffle plate (2), is located in the avoidance interval (102), and is located between the two first discharge heads (301); There are two pressure dividing plates (601), the two pressure dividing plates (601) are respectively arranged on the upper and lower sides of the partition (6), and the upper and lower pressure dividing plates (601) are respectively located inside the steel belt (1) on the upper and lower sides, and there is a gap between the pressure dividing plates (601) and the inner wall of the steel belt (1); The second filling tube (7) is arranged on one side of the partition (6) and is located in the avoidance interval (102). Along the moving direction of the steel strip (1), there are the first filling tube (3), the partition (6), the second filling tube (7) and the guide roller group (4) in sequence. The second filling tube (7) has a second discharge head (701), and the second discharge head (701) is used to fill the space between the steel strips (1) on both sides.

3. A welding wire core filling device according to claim 2, characterized in that: The second filling pipe (7) has two upper and lower second discharge heads (701), and the two second discharge heads (701) are respectively directed toward the interior of the steel strip (1) at the upper and lower sides.

4. A welding wire core filling device according to claim 2, characterized in that: The voltage dividing plate (601) is plugged into the partition plate (6).

5. A welding wire core filling device according to claim 1, characterized in that: Also includes: A packaging box (8), wherein the baffle (2), the guide roller group (4) and the shaping mold (5) are all arranged in the packaging box (8); the packaging box (8) has a first plug (801) and a second plug (802) on the left and right sides respectively; the first plug (801) has two oppositely arranged "U"-shaped through grooves (8011), and the two steel strips (1) enter the packaging box (8) respectively from the two through grooves (8011); the second plug (802) has a pipe outlet hole (8021), and the two steel strips (1) are in an "o" shape and then pass through the pipe outlet hole (8021).

6. A welding wire core filling device according to claim 5, characterized in that: The packaging box (8) is made of transparent plastic material.

7. A welding wire core filling device according to claim 1, characterized in that: The baffle plate (2) and the shaping mold (5) located on the same side are in contact with each other at their adjacent ends.

8. A welding wire flux core filling method, using a welding wire flux core filling device according to any one of claims 1 to 7 to fill the welding wire flux core, comprising the following steps: The first step is to arrange two "U"-shaped steel belts (1) up and down, the two baffles (2) block the front and rear sides of the avoidance interval (102), the first filling pipe (3) is located between the two steel belts (1) for filling, and the steel belts (1) gradually move in one direction; Step 2: the steel belt (1) is filled at the first filling pipe (3), and there is material in the avoidance interval (102), the steel belt (1) moves to the guide roller group (4), and under the gradual contraction limit of the two guide roller groups (4), the two steel belts (1) gradually approach each other, the avoidance interval (102) gradually disappears, the filling ports (101) of the two steel belts (1) abut against each other, and the material in the avoidance interval (102) is pressed into the inside of the two steel belts (1); In the third step, after the avoidance interval (102) disappears, the shaping dies (5) on the front and rear sides cooperate with the two groups of guide roller groups (4) to gradually approach each other, and the steel strip (1) located between the two shaping dies (5) still gradually approaches each other. At the same time, under the guiding action of the guide surface (5011), the two steel strips (1) gradually shrink from a "U" shape to an "o" shape.

9. A welding wire core filling method according to claim 8, characterized in that: The third step includes the following steps: Step 4: The two "o"-shaped steel strips (1) enter a rolling mill for compaction.

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