Cable inlet device and equipment having cable inlet device

Abstract

The present invention relates to the technical field of tooling, and in particular to a wire feed device and equipment having the same. A wire feed device comprises: a fixing device, provided with a housing cavity, and a mounting through hole connected to the housing cavity; a wire feed structure, installed in the housing cavity, and having a movable gap between the wire feed structure and the cavity wall of the housing cavity, a wire feed through hole is provided on the wire feed structure, and the wire feed through hole is arranged correspondingly to the mounting through hole, and the fixing device is suitable for limiting the wire feed structure in the direction of the length extension of the wire feed through hole and in the direction perpendicular to the length extension of the wire feed through hole. By providing a movable gap between the wire feed structure and the cavity wall of the housing cavity, when the wire is offset in the wire feed structure, the wire feed structure has a certain margin of movement, and the wire feed structure automatically moves in the direction of the force, so that the force does not directly act on the wire feed structure, that is, the wire feed structure has a certain automatic adjustment ability, reduces the force, prolongs the service life of the wire feed structure and reduces the damage to the wire feed surface.

Description

Technical Field

[0001] The present invention relates to the technical field of tooling equipment, and in particular to a wire feed device and equipment with the wire feed device. Background Art

[0002] At present, the wire drawing machine used by enameled wire manufacturers generally uses a hole drilled on the top of the wire drawing machine, and a smooth ceramic ring is installed outside the hole to prevent the bare copper wire from contacting the edge of the wire inlet, and then a stainless steel nut is used to fix the ceramic ring to the wire inlet of the wire drawing machine. In actual operation, the bare copper wire entering the wire drawing machine may deviate and deviate to the ceramic ring, causing the ceramic ring to be broken under great force, and the protective function of the ceramic ring is lost.

[0003] A new copper wire feeding die is proposed in the prior art, which uses a tungsten steel die to replace the ceramic ring to protect the bare copper wire. The tungsten steel die has good wear resistance and can better protect the copper wire and improve the quality of the copper wire. However, the copper wire feeding die uses a boss and a tooling slot for fixed connection. If the copper wire is offset during actual operation, it will still be directly offset to the tungsten steel die, so that the force between the tungsten steel die and the copper wire will still be relatively large. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the prior art that the incoming line structure is subjected to large forces, thereby providing an incoming line device capable of reducing the forces and a device having the incoming line device.

[0005] A line inlet device, comprising:

[0006] A fixing device, provided with a receiving cavity and a mounting through hole communicating with the receiving cavity;

[0007] The wire inlet structure is installed in the accommodating cavity and has a movable gap with the cavity wall of the accommodating cavity. The wire inlet structure is provided with a wire inlet through hole, and the wire inlet through hole is arranged corresponding to the installation through hole. The fixing device is suitable for limiting the wire inlet structure in the direction of extension of the length of the wire inlet through hole and in the direction perpendicular to the extension of the length of the wire inlet through hole.

[0008] The gap between the line inlet structure and the cavity wall of the accommodating cavity is 1-2 mm.

[0009] The fixing device comprises a first fixing structure and a second fixing structure which are detachably connected;

[0010] The accommodating cavity includes a first cavity provided on the first fixing structure, and a second cavity provided on the second fixing structure;

[0011] The mounting through hole includes a first through hole provided on the first fixing structure, and a second through hole provided on the second fixing structure, and the second through hole is provided corresponding to the first through hole.

[0012] The first fixing structure is threadedly connected to the second fixing structure.

[0013] The first fixing structure is nested on the outer side of the second fixing structure.

[0014] The first cavity, the second cavity and the line inlet structure have the same cross-sectional shape.

[0015] The first fixing structure comprises:

[0016] a first fixed body;

[0017] A cover plate is arranged at the end of the first fixed body. The cover plate is provided with the first through hole. The cover plate and the first fixed body together form the first cavity.

[0018] An opening is provided on the peripheral wall of the first fixing body, and the opening is communicated with the first through hole.

[0019] The second fixing structure comprises:

[0020] A base, wherein the second through hole is provided on the base;

[0021] The second fixing body is arranged on the base, and the second fixing body and the base together form the second cavity.

[0022] The inlet through hole at least includes an inlet segment and an outlet segment, the aperture of the inlet segment gradually decreases from outside to inside; and / or the aperture of the outlet segment gradually increases from inside to outside.

[0023] The inlet through hole also includes a body segment, one end of the body segment is connected to the inlet segment, and the other end is connected to the outlet segment, and the body segment is smoothly transitionally connected to the inlet segment and the outlet segment respectively.

[0024] The inlet line segment and / or the outlet line segment is a body of revolution, and the generatrix thereof is a smooth curve.

[0025] The aperture of the first through hole is larger than the maximum aperture of the incoming line through hole; and / or the aperture of the second through hole is larger than the maximum aperture of the incoming line through hole.

[0026] The interior of the wire inlet through hole is smoothly arranged.

[0027] The material of the wire inlet structure at least at the wire inlet through hole is a wear-resistant material.

[0028] A device with a line feeder device comprises the above-mentioned line feeder device.

[0029] The equipment with the wire feeding device is a continuous drawing machine.

[0030] The technical solution of the present invention has the following advantages:

[0031] 1. A wire feed device provided by the present invention comprises: a fixing device, provided with a housing cavity, and a mounting through hole connected to the housing cavity; a wire feed structure, installed in the housing cavity, and having a movable gap between the wire feed structure and the cavity wall of the housing cavity, the wire feed structure being provided with a wire feed through hole, the wire feed through hole being arranged corresponding to the mounting through hole, and the fixing device being suitable for limiting the wire feed structure in the direction in which the length of the wire feed through hole is extended, and in the direction perpendicular to the direction in which the length of the wire feed through hole is extended. By installing the incoming wire structure in the accommodating cavity of the fixing device, the fixing device can limit the incoming wire structure in the direction of the extension of the length of the incoming wire through hole and the direction perpendicular to the extension of the length of the incoming wire through hole to prevent the incoming wire structure from falling off. At the same time, there is a movable gap between the incoming wire structure and the cavity wall of the accommodating cavity of the fixing device, so that when the wire is offset in the incoming wire structure, the incoming wire structure has a certain movable margin. If the wire offset is small, the incoming wire structure automatically moves in the direction of the force, so that the force cannot directly act on the incoming wire structure, that is, the incoming wire structure has a certain automatic adjustment ability to reduce the force, thereby extending the service life of the incoming wire structure and reducing damage to the incoming wire surface.

[0032] 2. The present invention provides a line feeder device, wherein the fixing device comprises a first fixing structure and a second fixing structure that are detachably connected; the accommodating cavity comprises a first cavity provided on the first fixing structure, and a second cavity provided on the second fixing structure; the mounting through hole comprises a first through hole provided on the first fixing structure, and a second through hole provided on the second fixing structure, and the second through hole is provided corresponding to the first through hole. By configuring the fixing device as the first fixing structure and the second fixing structure that are detachably connected, the assembly of the line feeder structure is more convenient.

[0033] 3. In the wire feed device provided by the present invention, the first fixing structure is threadedly connected to the second fixing structure. By threading the first fixing structure to the second fixing structure, the connection between the first fixing structure and the second fixing structure is simple and the assembly and disassembly are convenient.

[0034] 4. The present invention provides a wire feeder device, wherein the first fixed structure comprises: a first fixed body; a cover plate, which is arranged at the end of the first fixed body, the cover plate is provided with the first through hole, and the cover plate and the first fixed body together form the first cavity. By configuring the first fixed structure to include the first fixed body and the cover plate, and the cover plate and the first fixed body together form the first cavity, the wire feeder structure can be limited in a direction perpendicular to the length of the wire feeder through hole, and by configuring the cover plate, the wire feeder structure can be limited in a direction along the length of the wire feeder through hole.

[0035] 5. The present invention provides a wire feeder device, wherein an opening is provided on the peripheral wall of the first fixed body, and the opening is connected to the first through hole. By providing an opening connected to the first through hole on the peripheral wall of the first fixed body, the wire feeder device is convenient for installing and disassembling the first fixed structure even during use, without stopping the machine or cutting the internal wires. The first fixed structure can be directly separated from the second fixed structure, and the wire can be passed through the opening to remove or install the first fixed structure.

[0036] 6. The present invention provides a line entry device, wherein the second fixed structure includes: a base, on which the second through hole is provided; and a second fixed body, which is provided on the base, and the second fixed body and the base together form the second cavity. By configuring the second fixed structure to include the second fixed body, the peripheral wall of the second fixed body forms the second cavity, so that the line entry structure can be fixed and the line entry structure can be limited in a direction perpendicular to the extension of the length of the line entry through hole; by configuring the second fixed structure to include the base, the line entry structure can be limited in a direction along the extension of the length of the line entry through hole, and the second fixed structure can be easily connected to the device to be entered by the line without destroying the integrity of the second fixed body.

[0037] 7. The present invention provides a wire feed device, wherein the wire feed through hole at least includes a wire feed section and a wire outlet section, the diameter of the wire feed section gradually decreases from the outside to the inside; and / or the diameter of the wire outlet section gradually increases from the inside to the outside. By setting the wire feed section and the wire outlet section of the wire feed through hole to be a trumpet-shaped structure that expands outward, when the wire is offset, it can mainly contact the wire feed structure, avoiding damage caused by contact with other parts of the wire, and ensuring the quality of the wire.

[0038] 8. The present invention provides a wire feed device, wherein the wire feed through hole further comprises a body segment, one end of the body segment is connected to the wire feed segment, and the other end is connected to the wire outlet segment, and the body segment is smoothly transitionally connected to the wire feed segment and the wire outlet segment. By providing the body segment, and the body segment is smoothly transitionally connected to the wire feed segment and the wire outlet segment, no edges or corners exist in the wire feed through hole, and the wire is in smooth contact with the wire feed through hole, thereby ensuring the quality of the wire.

[0039] 9. The present invention provides a wire feeding device, wherein the wire feeding segment and / or the wire outlet segment is a body of revolution, and the generatrix thereof is a smooth curve. By setting the wire feeding segment and / or the wire outlet segment as a body of revolution, and the generatrix thereof is a smooth curve, it is avoided that the wire contacts the edges and corners at the wire feeding segment and / or the wire outlet segment and damages the surface. No matter how the wire is tilted, it contacts the smooth curve, and the quality of the wire is further guaranteed.

[0040] 10. In a wire feeding device provided by the present invention, the aperture of the first through hole is larger than the maximum aperture of the wire feeding through hole; and / or the aperture of the second through hole is larger than the maximum aperture of the wire feeding through hole. By setting the aperture of the first through hole and / or the second through hole to be larger than the maximum aperture of the wire feeding through hole, the wire is prevented from directly contacting the first fixed structure and the second fixed structure when tilted, and damage to the wire surface is avoided.

[0041] 11. In the wire feed device provided by the present invention, the inside of the wire feed through hole is smoothly arranged. By making the inside of the wire feed through hole smooth, the wire and the wire feed structure are in smooth contact when in contact, thus preventing the wire from being damaged.

[0042] 12. In a wire feeder device provided by the present invention, the material of the wire feeder structure at least at the wire feeder through hole is wear-resistant material. By setting the material of the wire feeder structure at least at the wire feeder through hole to be wear-resistant material, the wire can be better protected and the quality of the wire can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 It is a structural exploded diagram of the line feeder device of the present invention;

[0045] Figure 2 It is a structural schematic diagram of a first fixing structure of a line feeder device of the present invention;

[0046] Figure 3 It is a structural schematic diagram of the second fixing structure of the line feeder device of the present invention;

[0047] Figure 4 A schematic structural diagram of the wear-resistant structure of the line feed structure of the line feed device of the present invention;

[0048] Figure 5 A cross-sectional view of the line inlet structure of the line inlet device of the present invention;

[0049] Description of reference numerals:

[0050] 1-inlet structure; 2-inlet through hole; 3-first fixed structure; 4-second fixed structure; 5-first cavity; 6-second cavity; 7-first through hole; 8-second through hole; 9-first fixed body; 10-cover plate; 11-opening; 12-base; 13-second fixed body; 14-inlet section; 15-outlet section; 16-body section; 17-inlet end; 18-screw hole; 19-copper wire; 20-mold sleeve; 21-wear-resistant structure. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] like Figure 1 - Figure 5 As shown, this embodiment provides a line feeder device, including: a fixing device and a line feeder structure 1.

[0054] A fixing device is provided with a housing cavity and a mounting through hole connected to the housing cavity; an incoming wire structure 1 is installed in the housing cavity and has a movable gap with the cavity wall of the housing cavity; an incoming wire through hole 2 is provided on the incoming wire structure 1, and the incoming wire through hole 2 is arranged corresponding to the mounting through hole; the fixing device is suitable for limiting the incoming wire structure 1 in the direction of the length extension of the incoming wire through hole 2 and in the direction perpendicular to the length extension of the incoming wire through hole 2.

[0055] By installing the incoming wire structure 1 in the accommodating cavity of the fixing device, the fixing device can limit the incoming wire structure 1 in the direction of the extension of the length of the incoming wire through hole 2 and the direction perpendicular to the extension of the length of the incoming wire through hole 2 to prevent the incoming wire structure 1 from falling off. At the same time, there is a movable gap between the incoming wire structure 1 and the cavity wall of the accommodating cavity of the fixing device, so that when the wire is offset in the incoming wire structure 1, the incoming wire structure 1 has a certain movable margin. If the wire offset is small, the incoming wire structure 1 automatically moves in the direction of the force, so that the force cannot directly act on the incoming wire structure, that is, the incoming wire structure 1 has a certain automatic adjustment ability to reduce the force, thereby extending the service life of the incoming wire structure 1 and reducing damage to the incoming wire surface.

[0056] Specifically, the gap between the incoming wire structure 1 and the cavity wall of the accommodating cavity in this embodiment is 1-2 mm. As a changeable implementation, the gap between the incoming wire structure 1 and the cavity wall of the accommodating cavity can also be set to other specific value ranges, which can be adjusted according to actual conditions.

[0057] There are many specific structural forms of the fixing device. The fixing device in this embodiment includes a first fixing structure 3 and a second fixing structure 4 that are detachably connected; the accommodating cavity includes a first cavity 5 provided on the first fixing structure 3, and a second cavity 6 provided on the second fixing structure 4; the installation through hole includes a first through hole 7 provided on the first fixing structure 3, and a second through hole 8 provided on the second fixing structure 4, wherein the first through hole 7, the wire entry through hole 2, and the second through hole 8 are concentrically arranged, and the wire passes through the first through hole 7, the wire entry through hole 2, and the second through hole 8 in sequence to enter the continuous drawing machine. By setting the fixing device as a detachably connected first fixing structure 3 and a second fixing structure 4, the assembly of the wire entry structure 1 is more convenient. As a convertible embodiment, it is also possible that the fixing device is an integrally formed first fixing structure 3 and a second fixing structure 4, as long as a port for installing the wire entry structure 1 is left on the first fixing structure 3 or the second fixing structure 4, and it is set as an elastic member, after the wire entry structure 1 is installed, the wire entry structure 1 can be restricted in its installation cavity by its own elastic force.

[0058] In this embodiment, the first fixing structure 3 is threadedly connected to the second fixing structure 4. By threading the first fixing structure 3 to the second fixing structure 4, the connection between the first fixing structure 3 and the second fixing structure 4 is simple and convenient for assembly and disassembly. As a convertible embodiment, the first fixing structure 3 and the second fixing structure 4 may be fixedly connected in the form of a buckle or a hole, or in the form of a boss or a slot, or in other fixing ways.

[0059] Specifically, the first fixing structure 3 in this embodiment is nested in the outer side of the second fixing structure 4, the inner peripheral wall of the first fixing structure 3 is provided with an internal thread, and the outer peripheral wall of the second fixing structure 4 is provided with an external thread, so that the first fixing structure 3 is threadedly connected with the second fixing structure 4. As a convertible embodiment, the first fixing structure 3 and the second fixing structure 4 can also be connected through end faces.

[0060] In this embodiment, the cross-sectional shapes of the first cavity 5, the second cavity 6 and the incoming line structure 1 are the same. Specifically, in this embodiment, the first cavity 5, the second cavity 6 are both annular cavities, and the incoming line structure 1 is cylindrical, that is, the cross-sectional shapes of the first cavity 5, the second cavity 6 and the incoming line structure 1 are all circular. As a convertible embodiment, the incoming line structure 1 can also be spherical; or the cross-sectional shapes of the first cavity 5, the second cavity 6 and the incoming line structure 1 are all square.

[0061] like Figure 2 As shown, the first fixing structure 3 in this embodiment includes: a first fixing body 9; a cover plate 10, which is arranged at the end of the first fixing body 9, and the cover plate 10 is provided with a first through hole 7, and the cover plate 10 and the first fixing body 9 together form a first cavity 5. By setting the first fixing structure 3 to include the first fixing body 9 and the cover plate 10, and the cover plate 10 and the first fixing body 9 together form the first cavity 5, the direction of the incoming line structure 1 perpendicular to the length of the incoming line through hole 2 can be limited, and by providing the cover plate 10, the direction of the incoming line structure 1 along the length of the incoming line through hole 2 can be limited.

[0062] In this embodiment, an opening 11 is provided on the peripheral wall of the first fixed body 9, and the opening 11 is connected to the first through hole 7. The diameter of the opening 11 is larger than the outer diameter of the wire, and the wire is the wire entering through the wire feeding device. By providing the opening 11 connected to the first through hole 7 on the peripheral wall of the first fixed body 9, and the diameter of the opening 11 is larger than the outer diameter of the wire, the wire feeding device is convenient for installing and disassembling the first fixed structure 3 even during use, without stopping the machine or cutting the internal wire. The first fixed structure 3 can be directly separated from the second fixed structure 4, and the wire can be passed through the opening 11 to remove or install the first fixed structure 3.

[0063] like Figure 3 As shown, the second fixing structure 4 in this embodiment includes: a base 12, on which a second through hole 8 is provided; a second fixing body 13, which is provided on the base 12, and the second fixing body 13 and the base 12 together form a second cavity 6. By configuring the second fixing structure 4 to include the second fixing body 13, it is convenient to fix the incoming wire structure 1, and by configuring the second fixing structure 4 to include the base 12, it is convenient to connect the second fixing structure 4 to the continuous drawing machine without destroying the integrity of the second fixing body 13.

[0064] Specifically, the base 12 in this embodiment is provided with a screw hole 18, and the corresponding position of the continuous drawing machine is provided with an assembly hole, and the base 12 is fixedly connected to the continuous drawing machine through the through-hole screws. As a convertible embodiment, the base 12 and the continuous drawing machine can also be connected by other fixing methods.

[0065] like Figure 5As shown, the inlet structure 1 in this embodiment includes a wear-resistant structure 21, and a die sleeve 20 arranged outside the wear-resistant structure 21, the die sleeve 20 is provided with an inlet end 17, the wear-resistant structure 21 includes at least an inlet segment 14 and an outlet segment 15 connected to the inlet end 17 of the die sleeve 20, the aperture of the inlet segment 14 gradually decreases from the outside to the inside; the aperture of the outlet segment 15 gradually increases from the inside to the outside, the inlet through hole 2 of the inlet structure 1 includes the inlet end 17 of the die sleeve 20, the inlet segment 14 and the outlet segment 15 of the wear-resistant structure 21, and the inside of the inlet through hole 2 is smoothly arranged. By setting the inlet segment 14 and the outlet segment 15 of the inlet through hole 2 to be a trumpet shape that expands outward, when the wire is offset, it can mainly contact the inlet structure 1, avoiding damage caused by contact between the wire and other parts, ensuring the quality of the wire, and by setting the inside of the inlet through hole 2 to be smooth, the wire is in smooth contact with the inlet structure 1 when it contacts, preventing damage to the wire. As a convertible implementation, the aperture of the incoming line segment 14 may be set to be constant, and the aperture of the outgoing line segment 15 may gradually increase from the inside to the outside; or the aperture of the incoming line segment 14 may gradually decrease from the outside to the inside, and the aperture of the outgoing line segment 15 may be set to be constant.

[0066] In this embodiment, both the incoming line segment 14 and the outgoing line segment 15 are bodies of revolution, and their generatrix is ​​a smooth curve. Specifically, the longitudinal sections of the incoming line segment 14 and the outgoing line segment 15 are circular arcs. By setting the incoming line segment 14 and the outgoing line segment 15 as bodies of revolution, and their generatrix is ​​a smooth curve, it is avoided that the line contacts the edges and corners at the incoming line segment 14 and the outgoing line segment 15 and damages the surface. No matter how the line is tilted, it contacts the smooth curve, further ensuring the quality of the line. As a convertible implementation, it is also possible that only the incoming line segment 14 is a body of revolution, and its generatrix is ​​a smooth curve; or, only the outgoing line segment 15 is a body of revolution, and its generatrix is ​​a smooth curve.

[0067] In this embodiment, the inlet through hole 2 of the inlet structure 1 also includes a body section 16 of a wear-resistant structure 21, one end of the body section 16 is connected to the inlet section 14, and the other end is connected to the outlet section 15, and the body section 16 is smoothly transitionally connected to the inlet section 14 and the outlet section 15. By providing the body section 16, and the body section 16 is smoothly transitionally connected to the inlet section 14 and the outlet section 15, there are no edges and corners in the inlet through hole 2, so that the wire is in smooth contact with the inlet through hole 2, thereby ensuring the quality of the wire. As a convertible embodiment, it is also possible that the inlet through hole 2 of the inlet structure 1 at the wear-resistant structure 21 only includes the inlet section 14 and the outlet section 15, and the inlet section 14 is smoothly transitionally connected to the outlet section 15.

[0068] In order to prevent the wire from contacting other parts except the wear-resistant structure 21, the aperture of the first through hole 7 in this embodiment is larger than the maximum aperture of the wire entry through hole 2 at the wear-resistant structure 21; the aperture of the second through hole 8 is larger than the maximum aperture of the wire entry through hole 2 at the wear-resistant structure 21. By setting the apertures of the first through hole 7 and the second through hole 8 to be larger than the maximum apertures of the wire entry through hole 2 at the wear-resistant structure 21, the wire is prevented from directly contacting the first fixed structure 3 and the second fixed structure 4 when tilted, and damage to the wire surface is avoided. As a convertible embodiment, it is also possible that only the aperture of the first through hole 7 is larger than the maximum aperture of the wire entry through hole 2 at the wear-resistant structure 21; or, only the aperture of the second through hole 8 is larger than the maximum aperture of the wire entry through hole 2 at the wear-resistant structure 21.

[0069] In this embodiment, the material of the wear-resistant structure 21 of the inlet structure 1 is wear-resistant material, and the material of the mold sleeve 20 may not be wear-resistant material. By setting the material of the wear-resistant structure 21 of the inlet structure 1 to be wear-resistant material, the wire can be better protected and the quality of the wire can be improved. By not setting the material of the mold sleeve 20 to be wear-resistant material, the cost can be reduced.

[0070] Specifically, the wear-resistant material in this embodiment is tungsten steel, and the material of the mold sleeve 20 is stainless steel. As a changeable implementation, the wear-resistant material can also be diamond, or diamond, or other wear-resistant materials.

[0071] This embodiment also provides a device with a line feeder device, including the above-mentioned line feeder device.

[0072] Specifically, the device with the wire feed device in this embodiment is a continuous drawing machine, which is used to feed the copper wire 19 from the wire feed device into the continuous drawing machine to produce enameled wire. As a convertible implementation, the copper wire 19 may be fed from the wire feed device into the continuous drawing machine to produce copper stranded wire; or the wire may be made of other materials, and the device with the wire feed device may be other equipment.

[0073] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A line feeder device, characterized in that: include: A fixing device, provided with a receiving cavity and a mounting through hole communicating with the receiving cavity; An inlet structure (1) is installed in the accommodating cavity and has a movable gap with the cavity wall of the accommodating cavity. The inlet structure (1) is provided with an inlet through hole (2), and the inlet through hole (2) is arranged corresponding to the installation through hole. The fixing device is suitable for limiting the inlet structure (1) in the direction of the length extension of the inlet through hole (2) and in the direction perpendicular to the length extension of the inlet through hole (2); The fixing device comprises a first fixing structure (3) and a second fixing structure (4) which are detachably connected; The accommodating cavity comprises a first cavity (5) provided on the first fixing structure (3), and a second cavity (6) provided on the second fixing structure (4); The mounting through hole comprises a first through hole (7) provided on the first fixing structure (3), and a second through hole (8) provided on the second fixing structure (4), wherein the second through hole (8) is provided corresponding to the first through hole (7); The first fixing structure (3) comprises: A first fixed body (9); a cover plate (10) disposed at an end of the first fixed body (9), the cover plate (10) being provided with the first through hole (7), the cover plate (10) and the first fixed body (9) together enclosing the first cavity (5); An opening (11) is provided on the peripheral wall of the first fixed body (9), and the opening (11) is communicated with the first through hole (7); The second fixing structure (4) comprises: A base (12), wherein the second through hole (8) is provided on the base (12); The second fixed body (13) is arranged on the base (12), and the second fixed body (13) and the base (12) together form the second cavity (6).

2. The line feeder device according to claim 1, characterized in that: The gap between the line inlet structure (1) and the cavity wall of the accommodating cavity is 1-2 mm.

3. The line feeder device according to claim 1, characterized in that: The first fixing structure (3) is threadedly connected to the second fixing structure (4).

4. The line feeder device according to claim 1, characterized in that: The first fixing structure (3) is nested on the outside of the second fixing structure (4).

5. The line feeder device according to claim 1, characterized in that: The first cavity (5), the second cavity (6) and the line inlet structure (1) have the same cross-sectional shape.

6. The line feeder device according to any one of claims 1 to 5, characterized in that: The inlet through hole (2) comprises at least an inlet segment (14) and an outlet segment (15), wherein the diameter of the inlet segment (14) gradually decreases from the outside to the inside; and / or the diameter of the outlet segment (15) gradually increases from the inside to the outside.

7. The line feeder device according to claim 6, characterized in that: The inlet through hole (2) further comprises a body section (16), one end of the body section (16) being connected to the inlet section (14), and the other end of the body section (16) being connected to the outlet section (15), and the body section (16) being connected to the inlet section (14) and the outlet section (15) respectively by smooth transition.

8. The line feeder device according to claim 6, characterized in that: The inlet line segment (14) and / or the outlet line segment (15) is a body of revolution, and its generatrix is ​​a smooth curve.

9. The line feeder device according to any one of claims 1 to 5, characterized in that: The aperture of the first through hole (7) is larger than the maximum aperture of the wire inlet through hole (2); and / or the aperture of the second through hole (8) is larger than the maximum aperture of the wire inlet through hole (2).

10. The line feeder device according to any one of claims 1 to 5, characterized in that: The interior of the wire inlet through hole (2) is arranged to be smooth.

11. The line feeder device according to any one of claims 1 to 5, characterized in that: The material of the wire inlet structure (1) at least at the wire inlet through hole (2) is a wear-resistant material.

12. A device having a line feeder, characterized in that: The invention comprises a line feeder device as claimed in any one of claims 1 to 11.

13. The device with a line feeder according to claim 12, characterized in that: The equipment with the wire feeding device is a continuous drawing machine.

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