Seamless calcareous cored wire and production method and equipment thereof

Abstract

The invention discloses a seamless calcareous cored wire and a production method and equipment thereof, and belongs to the technical field of cored wires. The production equipment of the seamless calcium core-spun yarn comprises a machine tool body and a core material box arranged on the machine tool body, a collecting groove is formed in the position, below the core material box and the core-spun yarn, of the machine tool body in the conveying direction of the core-spun yarn, and a conveying mechanism is arranged at the bottom of the collecting groove. One end of the conveying mechanism is located at the bottom of the collecting tank, the other end of the conveying mechanism is located in the core material box, and the core materials scattered in the collecting tank are recycled into the core material box through the conveying mechanism; the machine tool has the advantages that core materials scattered on the machine tool body can be conveniently recycled, and the workload of operators is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of cored wires, and in particular to a seamless calcium cored wire and a production method and equipment thereof. Background Art

[0002] In modern metallurgical processes, it is usually necessary to add various solvents, trace alloys, etc. into molten steel. Directly throwing these solvents and trace alloys into the molten steel will cause great waste. In order to improve the utilization efficiency of trace alloys and solvents, people have invented a method of adding cored wires. This method is to use a narrow steel strip to wrap the powder of solvents and trace alloys to make a thin steel tube with a core, called a cored wire. A device called a wire feeder is used to inject the cored wire into the molten steel to complete the treatment of the molten steel.

[0003] Core spun wires are divided into solid core spun wires and powder core spun wires according to the core material type, and are divided into seamless core spun wires and seamless core spun wires according to the iron sheet connection method. The powder seamless core spun wire is produced by rolling the iron belt on a coating machine, wrapping the powder core material inside the iron sheet, and then welding it to achieve a seamless effect.

[0004] When wrapping the core material of the core-spun wire in the prior art, in order to make the core material fully fill the inside of the iron sheet and make the core material filled evenly, the feeding amount of the core material is often adjusted to be greater than the filling amount inside the core-spun wire, thereby ensuring that the core material inside the iron sheet has a sufficient filling amount.

[0005] However, since the amount of material fed is greater than the required filling amount, the excess core material will be squeezed during the coating process, spilling out from the inside of the iron sheet and falling on the machine tool. First, the powder falls on the machine tool, seriously affecting the cleanliness of the machine tool; second, the powder accumulates more and more on the machine tool, and it needs to be cleaned regularly, increasing the workload of the operator. To this end, we propose a cored wire production equipment that can recycle the scattered powder. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that in the existing cored wire production process, core materials scatter onto the machine tool and need to be cleaned regularly, which increases the workload, and to propose a seamless calcium cored wire and a production method and equipment thereof.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A seamless calcium cored wire comprises an iron layer and a core material covered in the iron layer, wherein the core material is calcium wire or calcium granules; The iron sheet layer is ≥200g / m, and the core material is ≥50g / m; The metal calcium core has a calcium content of ≥97.0%, a magnesium content of ≤1.0%, an aluminum content of ≤0.8%, a manganese content of ≤0.05%, and a silicon content of ≤0.01%.

[0008] A method for producing a seamless calcium cored wire, comprising the following steps: S1. Straighten and convey the iron sheet used to coat the core material; S2. Place core material on the straightened iron sheet layer; S3, curling the iron sheet layer with the core material so that the iron sheet layer covers the core material; S4, welding the opening of the iron sheet layer to make a cored wire; S5, receiving and rolling the cored wire in S4.

[0009] A production device for seamless calcium cored wire comprises a machine tool body and a core material box arranged on the machine tool body, a collecting trough is provided on the machine tool body below the core material box and the cored wire along the conveying direction of the cored wire, a conveying mechanism is provided at the bottom of the collecting trough, one end of the conveying mechanism is located at the bottom of the collecting trough, and the other end is located inside the core material box, and the core material scattered in the collecting trough is recovered into the core material box through the conveying mechanism.

[0010] Furthermore, the conveying mechanism includes a conveying pipe and a blade shaft structure arranged in the conveying pipe, the conveying pipe includes a straight pipe portion and a curved pipe portion, the straight pipe portion is provided with a feed port corresponding to the collecting trough, and one end of the curved pipe portion away from the straight pipe portion is located inside the core material box.

[0011] Furthermore, the blade shaft structure includes a straight conveying part installed in the straight pipe part and a bent conveying part installed in the bent pipe part, the straight conveying part is connected to the bent conveying part, one end of the straight conveying part away from the bent conveying part is connected to a driving source, and one end of the bent conveying part away from the straight conveying part is located inside the core material box.

[0012] Furthermore, the bent conveying portion is composed of a plurality of conveying segments connected together, the conveying segments include connecting segments and spiral blades arranged on the connecting segments, the connecting segments include a first sphere and a second sphere connected to the first sphere and arranged along the conveying direction of the conveying pipe, the first sphere is provided with spiral blades on the outside, the first sphere is provided with a spherical groove corresponding to the second sphere on the inside, the spherical groove is provided with an opening at one end away from the second sphere, and two adjacent conveying segments are rotatably connected together through the cooperation of the second sphere and the spherical groove.

[0013] Furthermore, a plurality of connecting protrusions are arranged at intervals on the second sphere, and the plurality of connecting protrusions are distributed on the same circular trajectory on the surface of the second sphere. The plane where the same circular trajectory is located is perpendicular to the line connecting the centers of the first sphere and the second sphere, and a connecting groove corresponding to the connecting protrusion is opened inside the spherical groove.

[0014] Furthermore, the connecting groove is slidingly connected to the connecting protrusion, the length of the connecting groove along the direction of the line connecting the centers of the first sphere to the second sphere is greater than the length along the circumferential direction of the circular trajectory where the second sphere is located, the length of the connecting groove along the circumferential direction of the circular trajectory where the second sphere is located is the same as the radial dimension of the connecting protrusion in this direction, and the connecting protrusion is cylindrical.

[0015] Furthermore, the number of turns of the spiral trajectory of the spiral blade is greater than, and the height value of the spiral trajectory of the spiral blade is less than the diameter value of the first sphere.

[0016] Furthermore, the curved pipe portion is composed of a plurality of curved pipe segments, each of which comprises a straight circular pipe and flanges located at both ends of the straight circular pipe, and the first sphere (9) is located in the middle of the straight circular pipe; A packing groove is provided on the inner circle of the flange, and a sealing gasket is arranged between two adjacent flanges, and the sealing gasket is located on the outer side of the packing groove.

[0017] Compared with the prior art, the present invention provides a seamless calcium cored wire and a production method and equipment thereof, which have the following beneficial effects: A production equipment for seamless calcium cored wire. When in use, when the iron sheet used to produce the cored wire is conveyed under a core material box, the core material in the core material box falls onto the iron sheet, and then the iron sheet is curled and covers the core material during the subsequent conveying process, and then welding is performed. In the process of the iron sheet curling and covering the core material, excess core material scatters from the inside of the iron sheet to the outside into a collecting tank, flows into a conveying pipe from a feed inlet, and is recovered to the inside of the core material box under the conveying action of a spiral structure, replacing manual cleaning, thereby improving the overall cleanliness of the machine tool and reducing the cleaning workload of the operator.

[0018] Other advantages, objectives and features of the present invention will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic side cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the conveying mechanism of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the magnified effect of the structure of part A in the middle; Figure 5 It is a three-dimensional schematic diagram of the blade shaft structure of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the structure magnification effect of part B in the middle; Figure 7 It is a side view schematic diagram of the blade shaft structure of the present invention; Figure 8 It is a top view schematic diagram of the leaf boat structure of the present invention; Fig. 9 For the present invention Figure 8 Schematic diagram of the magnified effect of the structure of part C in the middle; Fig.10 It is a three-dimensional schematic diagram of the connecting segment structure of the present invention; Fig.11 It is a schematic diagram of a three-dimensional right front view of the conveying segment structure of the present invention; Fig.12 It is a schematic diagram of a three-dimensional left front view of the conveying segment structure of the present invention; Fig.13 It is a schematic diagram of the internal structure of the spherical groove of the present invention; Fig.14 It is a schematic diagram of the cross-sectional effect of the connection structure of multiple conveying segments of the present invention; Fig.15 It is a partial cross-sectional stereoscopic schematic diagram of the curved pipe segment structure of the present invention; Fig.16 It is a schematic diagram of a partial cross-section front view of the curved pipe segment structure of the present invention.

[0020] In the figure: 1. Machine tool body; 2. Core material box; 3. Collecting tank; 4. Conveying mechanism; 401. Conveying pipe; 402. Straight pipe part; 403. Bend pipe part; 404. Feeding port; 405. Straight conveying part; 406. Bend conveying part; 407. Conveying segment; 408. Connecting segment; 409. First sphere; 410. Second sphere; 411. Connecting protrusion; 412. Spherical groove; 413. Connecting groove; 414. Spiral blade; 415. Spiral structure; 5. Bend pipe segment; 501. Straight round pipe; 502. Flange; 503. Filling groove; 504. Sealing gasket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-14 The present invention discloses a seamless calcium cored wire, comprising an iron layer and a core material covered in the iron layer, wherein the core material is calcium wire or calcium granules; The iron sheet layer is ≥200g / m, and the core material is ≥50g / m; The calcium content of the metal calcium core is ≥97.0%, the magnesium content is ≤1.0%, the aluminum content is ≤0.8%, the manganese content is ≤0.05%, and the silicon content is ≤0.01%.

[0023] A method for producing a seamless calcium cored wire, comprising the following steps: S1. Straighten and convey the iron sheet used to coat the core material; S2. Place core material on the straightened iron sheet layer; S3, curling the iron sheet layer with the core material so that the iron sheet layer covers the core material; S4, welding the opening of the iron sheet layer to make a cored wire; S5, receiving and rolling the cored wire in S4.

[0024] A production device for seamless calcium cored wire comprises a machine tool body 1, a core material box 2 arranged on the machine tool body 1, a collecting trough 3 is provided on the machine tool body 1 below the core material box 2 and the cored wire along the conveying direction of the cored wire, the collecting trough 3 is in the shape of a funnel with a larger top and a smaller bottom, and a plurality of rollers for extruding iron sheets are installed on the machine tool body 1 along the conveying direction of the cored wire, and the rollers are located directly above the collecting trough 3.

[0025] A conveying mechanism 4 is installed at the bottom of the collecting trough 3, one end of the conveying mechanism 4 is located at the bottom of the collecting trough 3, and the other end is located inside the core material box 2. There is a discharge port at the bottom of the core material box 2, and the core material falls onto the iron sheet from the discharge port. The iron belt curls under the extrusion of the core material by the roller. During the curling process, excess core material falls from the iron sheet and falls into the collecting trough 3 located below the iron sheet. Then, the core material scattered in the collecting trough 3 is recovered into the core material box 2 through the conveying mechanism 4 to replace manual cleaning operations and avoid excessive accumulation of core material on the machine tool body 1 and in the collecting trough 3.

[0026] The conveying mechanism 4 includes a conveying pipe 401 and a blade shaft structure installed in the conveying pipe 401. The conveying pipe 401 includes a straight pipe portion 402 and a curved pipe portion 403. The straight pipe portion 402 is installed at the bottom of the collecting tank 3. A feed port 404 corresponding to the bottom of the collecting tank 3 is opened at the top of the straight pipe portion 402. After the core material falls into the collecting tank 3, it enters the interior of the straight pipe portion 402 of the conveying pipe 401 from the bottom of the collecting tank 3 through the feed port 404. The end of the curved pipe portion 403 away from the straight pipe portion 402 is located inside the core material box 2.

[0027] The core material falling into the conveying pipe 401 is in the straight pipe part 402, after being conveyed by the blade shaft structure, it enters the curved pipe part 403, and then enters the interior of the core material box 2 from the curved pipe part 403, completing the core material recovery operation.

[0028] The blade shaft structure includes a straight conveying part 405 installed in the straight tube part 402 and a bent conveying part 406 installed in the bent tube part 403. The straight conveying part 405 is connected to the bent conveying part 406. One end of the straight conveying part 405 away from the bent conveying part 406 is connected to a driving source. The driving source can be a motor. One end of the bent conveying part 406 away from the straight conveying part 405 is bent upward and extends into the interior of the core material box 2.

[0029] The bending conveying portion 406 is composed of a plurality of conveying segments 407 connected in series. The plurality of conveying segments 407 are connected in series. The conveying segments 407 include connecting segments 408 and spiral blades 414 arranged on the surface of the connecting segments 408. The plurality of connecting segments 408 are connected in series.

[0030] The connecting segment 408 includes a first sphere 409 and a second sphere 410 connected to the first sphere 409 and arranged along the conveying direction of the conveying tube 401. In the solution of the present application, the line connecting the centers of the first sphere 409 and the second sphere 410 coincides with the axis of the conveying tube 401.

[0031] In the present application, the straight conveying part 405 can be composed of conveying segments 407 arranged in a straight line, and the curved conveying part 406 can be composed of conveying segments 407 with a certain degree of bending. At the same time, the straight conveying part 405 can also be composed of a corresponding screw conveyor. When the screw conveyor is used, a second sphere 410 is fixedly connected to the end of the screw shaft of the screw conveyor close to the curved conveying part 406, which is used to connect with the spherical groove 412 in the first sphere 409 on the curved conveying part 406 close to one end of the screw conveyor, and the end of the screw conveyor away from the curved conveying part 406 is connected to the working end of the driving source fixedly installed on the machine tool body 1, and is driven to rotate by the driving source.

[0032] The straight conveying part 405 drives the curved conveying part 406 to rotate, so that the material is conveyed from the straight pipe part 402 to the curved pipe part 403 and finally enters the core material box 2.

[0033] A spiral blade 414 is integrally formed on the outside of the first sphere 409. When in use, the circumferential side wall of the spiral blade 414 is slidably connected to the inner wall of the conveying tube 401. A spherical groove 412 corresponding to the second sphere 410 is opened inside the first sphere 409. An opening is processed at one end of the spherical groove 412 away from the second sphere 410. The two adjacent conveying segments 407 are rotatably connected together through the cooperation of the second sphere 410 and the spherical groove 412.

[0034] Specifically, when two adjacent connecting segments 408 are connected, the second sphere 410 on the previous connecting segment 408 is rotatably installed in the spherical groove 412 , and the outer wall surface of the second sphere 410 is slidably fitted with the inner wall surface of the spherical groove 412 .

[0035] A plurality of connecting protrusions 411 are welded on the second sphere 410 at even intervals, and the plurality of connecting protrusions 411 are distributed on the same circular trajectory on the surface of the second sphere 410. The plane where the same circular trajectory is located is perpendicular to the line connecting the centers of the first sphere 409 and the second sphere 410. A connecting groove 413 corresponding to the connecting protrusion 411 is provided inside the spherical groove 412, and the connecting protrusion 11 is slidably connected to the connecting groove 413.

[0036] The position of the connecting protrusion 411 on the second sphere 410 is viewed from a three-dimensional coordinate system. Assuming that the center of the second sphere 410 is the origin and the line connecting the centers of the first sphere 409 and the second sphere 410 is the X-axis, the plane where the center of the connecting protrusion 411 is located is the plane where the Y-axis and the Z-axis are located.

[0037] When the conveying segment 407 and the connecting segment 408 rotate, they both rotate around the line connecting the centers of the first sphere 409 and the second sphere 410 as the axis. When the second sphere 410 rotates, the connecting protrusion 411 and the connecting groove 413 slide together to drive the other first sphere 409 to rotate. When the other first sphere 409 rotates, it also rotates along the line connecting the centers of the first sphere 409 and the second sphere 410 as the axis.

[0038] The connecting groove 413 is slidingly connected to the connecting protrusion 411. The length of the connecting groove 413 along the direction of the line connecting the centers of the first sphere 409 to the second sphere 410 is greater than the length along the circumferential direction of the circular trajectory where the second sphere 410 is located. The length of the connecting groove 413 along the circumferential direction of the circular trajectory where the second sphere 410 is located is the same as the radial dimension of the connecting protrusion 411 in this direction. The connecting protrusion 411 is cylindrical.

[0039] Specifically, the connecting groove 413 is an arc-shaped groove with the center of the second sphere 410 as the center, and the longer edge processed in the front-to-back direction is the line connecting the centers of the first sphere 409 and the second sphere 410. The size of the connecting groove 413 in the conveying direction (i.e., the line connecting the centers of the first sphere 409 and the second sphere 410) is larger than the size in the direction perpendicular to the conveying direction, so that the connecting protrusion 411 can slide in the connecting groove 413 along the conveying direction, while being positionally constrained in the direction perpendicular to the conveying direction.

[0040] When the centers of the spheres in two adjacent conveying segments 407 or connecting segments 408 are not on the same straight line, specifically, the center of the second sphere 410 at the connection is used as the center of the circle and the swing is performed. The angle of the swing is mainly related to the central angle corresponding to the longer side of the connecting groove 413 without considering other impression factors.

[0041] In the present application, when the conveying segment 407 rotates, it rotates in a direction perpendicular to the conveying direction, so that the connecting protrusion 411 cooperates with the connecting groove 413 to drive the first ball 409 to rotate and complete the transmission action.

[0042] The number of turns of the spiral track of the spiral blade 414 is greater than 1, and the height value of the spiral track of the spiral blade 414 is less than the diameter value of the first sphere 409 .

[0043] Specifically, since multiple conveying segments 407 are connected together and need to be bent at a certain angle, in order to avoid the spiral blades 414 between two adjacent conveying segments 407 interfering with each other, the spiral blades 414 on the two adjacent conveying segments 407 need to maintain a spacing. Therefore, the height value of the spiral trajectory of the spiral blades 414 needs to be smaller than the diameter value of the first sphere 409, so that the two adjacent conveying segments 407 can be bent at a certain angle, and the spiral blades 414 will not interfere after bending.

[0044] Due to the above situation, when the spiral blade 414 on each conveying segment 407 conveys the core material, if the number of turns of the spiral track of the spiral blade 414 is less than 1, the core material that has been conveyed to the next position may flow back during the conveying process. When the number of turns of the spiral track of the spiral blade 414 is greater than 1, such backflow can be effectively avoided. Fig. 9 The number of turns of the spiral blade 414 is 2.

[0045] Multiple conveying segments 407 and connecting segments 408 are alternately connected. When alternately connected, any number of connecting segments 408 can be connected between any two adjacent conveying segments 407 among any number of conveying segments 407. In actual use, any number of conveying segments 407 can be directly connected together or used alternately with the connecting segments 408.

[0046] The purpose of installing the connecting segment 408 between adjacent conveying segments 407 is that when two adjacent conveying segments 407 are bent at a large angle, the spiral blades 414 on the two conveying segments 407 may still interfere with each other. In order to avoid such interference, the connecting segment 408 is added.

[0047] Since there are no spiral blades 414 on the surface of the connecting segment 408 , the bendable angles of two adjacent connecting segments 408 , or between an adjacent connecting segment 408 and a conveying segment 407 , are both greater than those of the two adjacent conveying segments 407 .

[0048] The curved pipe portion 403 is composed of multiple curved pipe segments 5, and the curved pipe segments 5 include a straight circular pipe 501 and flanges 502 located at both ends of the straight circular pipe 501. The straight circular pipe 501 is a straight circular pipe structure, and the two ends of the straight circular pipe 501 are inclined surfaces, so that the cross-section of the straight circular pipe 501 is fan-shaped. When two adjacent straight circular pipes 501 are connected together, they are connected in a manner that the bending direction faces the same side, so that a bent pipe structure can be formed. The curved pipe portion 403 as a whole is composed of multiple straight circular pipes 501 in the form of fold lines, so that the curved pipe portion 403 as a whole has a curved structure.

[0049] The first sphere 409 is located in the middle of the straight circular tube 501, the outer circumferential wall of the spiral blade 414 is in contact with the inner circumferential wall of the straight circular tube 501, and the bending part between two adjacent conveying segments 407 (i.e., the connection part between the first sphere 409 and the second sphere 410) is aligned with the connection part between two adjacent straight circular tubes 501 (also the connection part between two adjacent flanges 502), and is synchronously bent; A packing groove 503 is machined on the inner circle of the flange 502. The structure of the packing groove 503 is as follows: Figure 15-16 As shown, a sealing gasket 504 is installed between two adjacent flanges 502. The sealing gasket 504 is located on the outside of the filling groove 503. The sealing gasket 504 is used to prevent the core material in the tube from leaking from the gap between the two flanges 502. The function of the filling groove 503 is that when the tube is full of core material, the core material will automatically fill the filling groove 503. When the core material fills the filling groove 503, it can prevent the subsequent core material from contacting the sealing gasket 504 during the movement, thereby reducing the wear of the sealing gasket 504 during long-term use and increasing the service life of the sealing gasket 504.

[0050] Working principle: When in use, the iron sheet passes through the bottom of the core material box 2 on the machine tool body 1 and between the rollers. When the iron sheet passes under the core material box 2, the core material in the core material box 2 falls and flows onto the iron sheet, and then the iron sheet is squeezed by the roller to wrap the core material in the middle. During the wrapping process, excess core material falls from the iron sheet into the collecting tank 3, and then flows to the bottom of the collecting tank 3, and enters the conveying pipe 401 through the feed port 404. The driving source drives the blade shaft structure to rotate, and the spiral blades 414 on the blade shaft structure drive the core material to move in the conveying pipe 401 in a spiral manner, and move from the bottom of the collecting tank 3 to the inside of the core material box 2 for recycling.

[0051] In the process of the bending conveying portion 406 rotating, the axes of rotation between adjacent conveying segments 407 and conveying segments 407 (or connecting segments 408 ) are not colinear.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A seamless calcium cored wire, comprising an iron layer and a core material covered in the iron layer, characterized in that: The core material is calcium particles; The iron sheet layer is ≥200g / m, and the core material is ≥50g / m; The metal calcium core has a calcium content of ≥97.0%, a magnesium content of ≤1.0%, an aluminum content of ≤0.8%, a manganese content of ≤0.05%, and a silicon content of ≤0.01%.

2. The method for producing a seamless calcium cored wire according to claim 1, characterized in that: Here are the steps: S1. Straighten and convey the iron sheet used to coat the core material; S2. Place core material on the straightened iron sheet layer; S3, curling the iron sheet layer with the core material so that the iron sheet layer covers the core material; S4, welding the opening of the iron sheet layer to make a cored wire; S5, receiving and rolling the cored wire in S4.

3. The production equipment of a seamless calcium cored wire according to claim 1, comprising a machine tool body (1), and a core material box (2) arranged on the machine tool body (1), characterized in that: A collecting trough (3) is provided on the machine tool body (1) at a position below the core material box (2) and the cored wire along the conveying direction of the cored wire, and a conveying mechanism (4) is provided at the bottom of the collecting trough (3), one end of the conveying mechanism (4) is located at the bottom of the collecting trough (3), and the other end is located inside the core material box (2), and the core material scattered in the collecting trough (3) is recovered into the core material box (2) through the conveying mechanism (4).

4. The production equipment of a seamless calcium cored wire according to claim 3, characterized in that: The conveying mechanism (4) comprises a conveying pipe (401) and a blade shaft structure arranged in the conveying pipe (401); the conveying pipe (401) comprises a straight pipe portion (402) and a curved pipe portion (403); a feed port (404) corresponding to the collecting tank (3) is provided on the straight pipe portion (402); and an end of the curved pipe portion (403) away from the straight pipe portion (402) is located inside the core material box (2).

5. The production equipment of a seamless calcium cored wire according to claim 4, characterized in that: The blade shaft structure includes a straight conveying portion (405) installed in the straight tube portion (402) and a bent conveying portion (406) installed in the bent tube portion (403), wherein the straight conveying portion (405) is connected to the bent conveying portion (406), an end of the straight conveying portion (405) away from the bent conveying portion (406) is connected to a driving source, and an end of the bent conveying portion (406) away from the straight conveying portion (405) is located inside the core material box (2).

6. The production equipment of a seamless calcium cored wire according to claim 5, characterized in that: The bent conveying portion (406) is composed of a plurality of conveying segments (407) connected together. The conveying segment (407) comprises a connecting segment (408) and a spiral blade (414) arranged on the connecting segment (408). The connecting segment (408) comprises a first sphere (409) and a second sphere (410) connected to the first sphere (409) and arranged along the conveying direction of the conveying pipe (401). The first sphere (409) is provided with a spiral blade (414) on the outside. The first sphere (409) is provided with a spherical groove (412) corresponding to the second sphere (410) on the inside. The spherical groove (412) is provided with an opening at one end away from the second sphere (410). Two adjacent conveying segments (407) are rotatably connected together through the cooperation between the second sphere (410) and the spherical groove (412).

7. The production equipment of a seamless calcium cored wire according to claim 6, characterized in that: A plurality of connection protrusions (411) are arranged at intervals on the second sphere (410); the plurality of connection protrusions (411) are distributed on a same circular track on the surface of the second sphere (410); the plane where the same circular track is located is perpendicular to a line connecting the centers of the first sphere (409) and the second sphere (410); and a connection groove (413) corresponding to the connection protrusion (411) is provided inside the spherical groove (412).

8. The production equipment of a seamless calcium cored wire according to claim 7, characterized in that: The connection groove (413) is slidably connected to the connection protrusion (411); the length of the connection groove (413) along the direction of the line connecting the centers of the first sphere (409) and the second sphere (410) is greater than the length along the circumferential direction of the circular track where the second sphere (410) is located; the length of the connection groove (413) along the circumferential direction of the circular track where the second sphere (410) is located is the same as the radial dimension of the connection protrusion (411) in this direction; and the connection protrusion (411) is cylindrical.

9. The production equipment of a seamless calcium cored wire according to claim 6, characterized in that: The number of turns of the spiral track of the spiral blade (414) is greater than 1, and the height value of the spiral track of the spiral blade (414) is less than the diameter value of the first sphere (409).

10. The production equipment of a seamless calcium cored wire according to claim 6, characterized in that: The curved pipe portion (403) is composed of a plurality of curved pipe segments (5), wherein the curved pipe segments (5) include a straight circular pipe (501) and flanges (502) located at both ends of the straight circular pipe (501), and the first sphere (409) is located in the middle of the straight circular pipe (501); A packing groove (503) is provided on the inner circle of the flange (502), and a sealing gasket (504) is provided between two adjacent flanges (502), wherein the sealing gasket (504) is located outside the packing groove (503).

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