Metal wire section conveying device of copper wire cut-off machine

Abstract

The invention relates to the technical field of copper wire processing, in particular to a metal wire section conveying device of a copper wire cut-off machine, which comprises a straightening mechanism, a conveying mechanism and a cut-off mechanism which are linearly arranged, the conveying mechanism is provided with a first roller body and a second roller body which can rotate oppositely, and the second roller body is provided with an accommodating groove for a metal wire to pass through; the second roller body comprises an inner roller body and outer roller bodies arranged outside the inner roller body in a sleeving mode, and the containing groove is a space between the two outer roller bodies. The conveying mechanism is provided with a wide distance control mechanism used for controlling the distance between the two outer roller bodies, and the conveying mechanism is further provided with a longitudinal distance control mechanism used for controlling the distance between the first roller body and the second roller body. And the distance between the first roller body and the inner roller body is also enlarged in a direct proportion, so that the whole containing groove is enlarged to contain the copper wires with the corresponding diameters, and stable conveying of the copper wires with the different diameters is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire processing, in particular to a metal wire segment conveying device of a copper wire cutting machine. Background Art

[0002] Copper wire cutting machine is a mechanical device specially used to cut metal copper wire or other similar materials into required lengths. Copper wire cutting machine mainly includes straightening mechanism, conveying mechanism and cutting mechanism;

[0003] Chinese Patent: CN202023306292.1 discloses a copper wire conveying device, including a support column and a conveying frame, wherein a conveying frame is installed on the top of the support column, and a first fixed frame and a second fixed frame are respectively installed on both sides of the top of the conveying frame, and the inner sides of the first fixed frame and the second fixed frame are respectively rotatably connected with a first clamping conveying wheel and a second clamping conveying wheel, and sliding rails are installed on both sides of the conveying frame, and a slide groove is opened on the inner side of the sliding rail, and a slider that can slide along the slide groove is installed on the inner side of the slide groove, and the opposite sides of the sliders on both sides are fixedly connected to the first fixed frame and the second fixed frame respectively; the slider driven by the first expansion spring utilizes the elastic force of the first expansion spring to drive the first clamping conveying wheel and the second clamping conveying wheel to clamp the copper wire, which is convenient to maintain a certain friction force between the copper wire and the copper wire, and on the other hand, selecting a spring with a suitable elastic coefficient will not cause the clamping to be too tight, and the structure is simple and practical.

[0004] Combining the prior art and the above-mentioned patent, it can be known that before the copper wire to be cut is introduced from the supply roll or wire drum into the cutting area, the conveying mechanism it needs to pass through is realized by a pair of rollers that can rotate in opposite directions. In order to adapt to copper wires of different diameters, it is generally completed by adjusting the distance between the two rollers. However, this will cause the copper wire to have a certain degree of deviation and shaking in the lateral position, and the linearity of the copper wire cannot be guaranteed to the greatest extent, which will cause the wire segments formed by subsequent cutting to be non-linear. In order to solve this problem, it is necessary to propose a metal wire segment conveying device for a copper wire cutting machine. Summary of the invention

[0005] In view of this, the purpose of the present invention is to propose a metal wire segment conveying device for a copper wire cutting machine, so as to solve the technical problem that when adjusting the spacing between two rollers to adapt to copper wires of different diameters, the copper wire will have a certain degree of deviation and shaking in the lateral position, and the linearity of the copper wire cannot be guaranteed to the greatest extent.

[0006] Based on the above purpose, the present invention provides a wire segment conveying device for a copper wire cutting machine, comprising a straightening mechanism, a conveying mechanism and a cutting mechanism arranged in a linear manner, wherein a first roller body and a second roller body that can rotate in opposite directions are arranged on the conveying mechanism, and a receiving groove for the metal wire to pass through is provided on the second roller body;

[0007] The second roller body includes an inner roller body and an outer roller body sleeved outside the inner roller body, wherein the outer roller bodies are symmetrically arranged at both ends of the inner roller body and are slidably connected to the inner roller body through a sliding groove, and the containing groove is the space between the two outer roller bodies;

[0008] The conveying mechanism is provided with a width control mechanism for controlling the distance between the two outer roller bodies, and the conveying mechanism is also provided with a longitudinal control mechanism for controlling the distance between the first roller body and the second roller body.

[0009] Preferably, the conveying mechanism includes a conveying frame, on which sliding plates corresponding to the first roller body and the second roller body are slidably arranged, two ends of the first roller body are rotatably connected to the corresponding sliding plates, and two ends of the inner roller body respectively penetrate the outer roller body and are rotatably connected to the sliding plates corresponding to the second roller body;

[0010] The conveying mechanism also includes a first synchronous belt pulley set, one end of the first synchronous belt is fixedly connected to the inner roller body of the second roller body through a synchronous wheel, a rotating shaft is arranged on the sliding plate corresponding to the first roller body, the other end of the first synchronous belt is rotatably connected to the rotating shaft through the synchronous wheel, and the ends of the rotating shaft and the first roller body are respectively provided with a first gear and a second gear, and the first gear is meshed with the second gear;

[0011] The conveying frame is provided with a first rotary driver, and the output end of the first rotary driver is drivingly connected with the inner roller body.

[0012] Preferably, a guide rod is provided on the conveying frame body, a tensioning frame and a tensioning wheel rotatably installed on the tensioning frame are slidably provided on the guide rod, and an elastic element is provided on the guide rod, which is used to push the tensioning wheel through the tensioning frame to keep the first synchronous belt in a taut state.

[0013] Preferably, the width control mechanism includes a guide frame fixedly arranged on the conveying frame body, a sliding block corresponding to the two outer roller bodies is slidably mounted on the guide frame, the two sliding blocks are rotatably connected with the two outer roller bodies through a bearing seat, a first driving rod is rotatably arranged on the guide frame, two sections of thread grooves are opened on the first driving rod in opposite directions, and the two sections of thread grooves are respectively threadedly connected with the two sliding blocks;

[0014] A control frame is arranged on the conveying frame, and a second rotary driver for controlling the rotation of the first driving rod is installed on the control frame.

[0015] Preferably, the vertical distance control mechanism includes a sliding frame slidably mounted on the control frame body, and the sliding frame is perpendicular to the sliding direction of the sliding plate;

[0016] Connecting rods, wherein there are two connecting rods, one end of one connecting rod is hinged to the upper part of the sliding frame, and the other end of one connecting rod is hinged to the sliding plate corresponding to the first roller body, and one end of the second connecting rod is hinged to the lower part of the sliding frame, and the other end of the second connecting rod is hinged to the sliding plate corresponding to the inner roller body;

[0017] The second driving rod is rotatably arranged on the control frame, the second driving rod penetrates the sliding frame and is threadedly connected with the sliding frame, and the first driving rod and the second driving rod are connected through a second synchronous belt transmission.

[0018] Preferably, the conveying device also includes a straightening disk and a straightening control mechanism. The straightening disk is rotatably installed on the conveying frame. The straightening disk is provided with straightening holes with different inner diameters matching the copper wire, and the center of the straightening hole corresponds to the accommodating hole. The straightening control mechanism is used to drive the straightening disk to rotate so as to switch the correspondence between the straightening hole and the accommodating slot.

[0019] Preferably, the straightening control mechanism includes a rotating frame, which is fixedly mounted on the conveyor frame, and the straightening disk is rotatably mounted on the rotating frame through a bearing, a gear ring is fixedly mounted on the straightening disk, and a rack is arranged on the sliding frame, and the rack is meshed with the gear ring.

[0020] Preferably, the straightening mechanism includes a straightening base and a plurality of straightening circular sleeves rotatably mounted on the straightening base, grooves are provided on the straightening circular sleeves, and the straightening circular sleeves are distributed on the straightening base in two forms, one form is a horizontally staggered distribution, and the other form is a vertically staggered distribution.

[0021] Beneficial effects of the present invention:

[0022] 1. When the distance between the two outer roller bodies in the second roller body is controlled, the distance between the first roller body and the inner roller body will also be proportionally expanded, thereby forming an overall expansion of the accommodating groove to accommodate copper wires of corresponding diameters, thereby achieving stable transportation of copper wires of different diameters.

[0023] 2. When the size of the accommodating groove is adjusted to correspond to the diameter of the copper wire, the corresponding straightening hole on the straightening disk will also be matched to the accommodating groove, so as to avoid slight bending or deviation due to equipment vibration or other factors during the cutting process, so as to help maintain the straightness of the copper wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 The three-dimensional structure diagram of the conveying mechanism of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 3 It is a front view of the conveying mechanism of the present invention;

[0028] Figure 4 The three-dimensional structure diagram of the conveying mechanism of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 5 It is a front view of the conveying mechanism, the straightening disc and the straightening control mechanism of the present invention;

[0030] Figure 6 for Figure 5 A magnified image of point A;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the straightening mechanism of the present invention;

[0032] Figure 8 It is a top view of the present invention.

[0033] The numbers in the figure are:

[0034] 1-straightening mechanism; 11-straightening base; 12-straightening sleeve; 2-conveying mechanism; 21-first roller body; 211-second gear; 22-second roller body; 221-accommodating groove; 222-inner roller body; 223-outer roller body; 23-conveying frame body; 24-sliding plate; 25-first synchronous belt; 26-rotating shaft; 261-first gear; 27-first rotary drive; 28-guide rod; 281-tensioning frame; 282-tensioning frame Wheel; 283-elastic element; 3-width control mechanism; 31-guide frame; 32-sliding block; 33-first drive rod; 34-control frame; 35-second rotation drive; 4-longitudinal control mechanism; 41-sliding frame; 42-connecting rod; 43-second drive rod; 44-second synchronous belt; 5-cutting mechanism; 6-straightening disk; 61-straightening hole; 7-straightening control mechanism; 71-rotating frame; 72-gear ring; 73-rack. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0036] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The first aspect of the present invention provides a wire segment conveying device for a copper wire cutting machine, such as Figures 1 to 4 and Figure 8 As shown, it comprises a straightening mechanism 1, a conveying mechanism 2 and a cutting mechanism 5 which are arranged linearly, the conveying mechanism 2 is provided with a first roller body 21 and a second roller body 22 which can rotate in opposite directions, and the second roller body 22 is provided with a receiving groove 221 for the metal wire to pass through;

[0038] The second roller body 22 includes an inner roller body 222 and an outer roller body 223 sleeved outside the inner roller body 222. The outer roller bodies 223 are symmetrically arranged at both ends of the inner roller body 222 and are slidably connected to the inner roller body 222 through a slide groove. The receiving groove 221 is the space between the two outer roller bodies 223.

[0039] The conveying mechanism 2 is provided with a width control mechanism 3 for controlling the distance between the two outer roller bodies 223 , and the conveying mechanism 2 is also provided with a length control mechanism 4 for controlling the distance between the first roller body 21 and the second roller body 22 .

[0040] The conveying mechanism 2 includes a conveying frame 23, on which sliding plates 24 corresponding to the first roller body 21 and the second roller body 22 are slidably arranged, and both ends of the first roller body 21 are rotatably connected to the corresponding sliding plates 24, and both ends of the inner roller body 222 respectively penetrate the outer roller body 223 and are rotatably connected to the sliding plates 24 corresponding to the second roller body 22;

[0041] The conveying mechanism 2 also includes a first synchronous belt 25 wheel set, one end of the first synchronous belt 25 is fixedly connected to the inner roller body 222 of the second roller body 22 through a synchronous wheel, a rotating shaft 26 is provided on the sliding plate 24 corresponding to the first roller body 21, the other end of the first synchronous belt 25 is rotatably connected to the rotating shaft 26 through a synchronous wheel, and the ends of the rotating shaft 26 and the first roller body 21 are respectively provided with a first gear 261 and a second gear 211, and the first gear 261 is meshed with the second gear 211;

[0042] The conveying frame 23 is provided with a first rotary driver 27 , and an output end of the first rotary driver 27 is drivingly connected to the inner roller body 222 .

[0043] The conveying frame 23 is provided with a guide rod 28, on which a tensioning frame 281 and a tensioning wheel 282 rotatably mounted on the tensioning frame 281 are slidably provided. An elastic element 283 is provided on the guide rod 28, and the elastic element 283 is used to push the tensioning wheel 282 through the tensioning frame 281 to keep the first synchronous belt 25 in a taut state.

[0044] The width control mechanism 3 includes a guide frame 31 fixedly arranged on the conveying frame body 23, and a sliding block 32 corresponding to the two outer roller bodies 223 is slidably mounted on the guide frame 31. The two sliding blocks 32 are rotatably connected to the two outer roller bodies 223 through a bearing seat, and a first driving rod 33 is rotatably arranged on the guide frame 31. Two sections of thread grooves are opened on the first driving rod 33 in opposite directions, and the two sections of thread grooves are respectively threadedly connected to the two sliding blocks 32;

[0045] A control frame 34 is disposed on the conveying frame 23 , and a second rotation driver 35 for controlling the rotation of the first driving rod 33 is installed on the control frame 34 .

[0046] The vertical distance control mechanism 4 includes a sliding frame 41 slidably mounted on the control frame body 34, and the sliding frame 41 is perpendicular to the sliding direction of the sliding plate 24;

[0047] Connecting rods 42, wherein there are two connecting rods 42, one end of one connecting rod 42 is hinged to the upper part of the sliding frame 41, and the other end of one connecting rod 42 is hinged to the sliding plate 24 corresponding to the first roller body 21, and one end of the second connecting rod 42 is hinged to the lower part of the sliding frame 41, and the other end of the second connecting rod 42 is hinged to the sliding plate 24 corresponding to the inner roller body 222;

[0048] The second driving rod 43 is rotatably disposed on the control frame 34 , and the second driving rod 43 penetrates the sliding frame 41 and is threadedly connected thereto. The first driving rod 33 and the second driving rod 43 are transmission-connected via a second synchronous belt 44 .

[0049] In this embodiment, before the cutting mechanism 5 starts working, the size of the accommodating groove 221 needs to be controlled according to the diameter of the copper wire, the width control mechanism 3 starts working, the second rotary driver 35 controls the first driving rod 33 to rotate, and the first driving rod 33 drives the second driving rod 43 to rotate simultaneously with it through the second synchronous belt 44. Since the first driving rod 33 has two sections of thread grooves arranged opposite to each other on its surface, and the two sections of thread grooves are respectively threadedly connected with its first sliding block 32 and its second sliding block 32, when the first driving rod 33 rotates, it will drive the two sliding blocks 32 to move closer to or away from each other. At the same time, when the second driving rod 43 rotates, it will drive the sliding frame 41 to move horizontally. The sliding frame 41 will drive the two sets of sliding plates 24 through the connecting rod 42 through its lateral displacement to make the first roller body 21 and the second roller body 22 move closer to or away from each other;

[0050] It should be noted that when the two outer roller bodies 223 of the second roller body 22 move away from each other, the distance between the first roller body 21 and the inner roller body 222 will also increase proportionally, thereby forming an overall expansion of the accommodating groove 221 to accommodate the copper wire of the corresponding diameter;

[0051] Before the cutting mechanism 5 starts working, the staff is required to pass the copper wire through the straightening mechanism 1 and the conveying mechanism 2 in sequence, and the copper wire passing through the conveying mechanism 2 is inside the containing groove 221;

[0052] Next, the conveying mechanism 2 starts to work, and the output shaft of the first rotary driver 27 drives the inner roller 222 to rotate. When the inner roller 222 starts to rotate, it drives the outer rollers 223 mounted on both ends to rotate with it. At the same time, the inner roller 222 drives the rotating shaft 26 to rotate in the same direction through the first synchronous belt 25. Since the first gear 261 and the second gear 211 are meshed, the axle will drive the second gear 211 to rotate through the first gear 261, and the second gear 211 drives the first roller 21 to rotate in the opposite direction, thereby forming the opposite rotation of the first roller 21 and the second roller 22 to convey the copper wire, and the conveyed copper wire will finally be cut by the cutting mechanism 5.

[0053] The elastic element 283 is preferably a spring, and the first rotary drive 27 and the second rotary drive 35 are preferably servo motors.

[0054] Even though the copper wire has been straightened as much as possible after passing through the straightening mechanism 1, it may still be slightly bent or deflected during the cutting process due to equipment vibration or other factors. In order to help maintain the straightness of the copper wire, Figure 5 and Figure 6 and Figure 8 As shown, further:

[0055] The conveying device also includes a straightening disk 6 and a straightening control mechanism 7. The straightening disk 6 is rotatably installed on the conveying frame 23. The straightening disk 6 is provided with straightening holes 61 with different inner diameters matching the copper wire, and the center of the straightening hole 61 corresponds to the accommodating hole. The straightening control mechanism 7 is used to drive the straightening disk 6 to rotate so as to switch the correspondence between the straightening hole 61 and the accommodating groove 221.

[0056] The straightening control mechanism 7 includes a rotating frame 71, which is fixedly mounted on the conveyor frame. The straightening disk 6 is rotatably mounted on the rotating frame 71 through a bearing. A gear ring 72 is fixedly mounted on the straightening disk 6. A rack 73 is provided on the sliding frame 41, and the rack 73 is meshed with the gear ring 72.

[0057] In this embodiment, before the cutting mechanism 5 starts working, the size of the accommodating groove 221 needs to be controlled according to the diameter of the copper wire. When the first driving rod 33 rotates, it will drive the two sliding blocks 32 to move closer to or away from each other. At the same time, when the second driving rod 43 rotates, it will drive the sliding frame 41 to move laterally. The sliding frame 41 will drive the two sets of sliding plates 24 through the connecting rod 42 through its lateral displacement to make the first roller body 21 and the second roller body 22 move closer to or away from each other. When the two outer roller bodies 223 in the second roller body 22 move away from each other, the distance between the first roller body 21 and the inner roller body 222 will also increase proportionally. During the above-mentioned action, the sliding frame 41 will move. Since the rack 73 is meshed with the ring gear 72, the sliding frame 41 will drive the ring gear 72 to rotate through the rack 73, and the ring gear 72 will also drive the straightening disk 6 to rotate with it.

[0058] Different copper wire diameters will require a accommodating groove 221 of a matching size, which means that the moving position of the sliding frame 41 is deterministic. When the size of the accommodating groove 221 matches the copper wire diameter, the position of the sliding frame 41 after movement will also indirectly drive the straightening hole 61 on the straightening disk 6 corresponding to the copper wire to correspond to the accommodating groove 221.

[0059] The inner diameter of the straightening hole 61 needs to match the diameter of the copper wire. Generally speaking, the inner diameter of the straightening hole 61 should be slightly larger than the diameter of the copper wire to allow the copper wire to pass smoothly without too much gap. This gap should usually be small, depending on the diameter of the copper wire and the required cutting accuracy. Too large a gap may cause the copper wire to shake in the straightening hole 61, thereby affecting the cutting accuracy; too small a gap may increase friction, causing damage to the copper wire surface or wear of the guide ring.

[0060] As an implementation method, Figure 7 As shown, further:

[0061] The straightening mechanism 1 includes a straightening base 11 and a plurality of straightening sleeves 12 rotatably mounted on the straightening base 11. The straightening sleeves 12 are provided with grooves. The straightening sleeves 12 are distributed on the straightening base 11 in two forms, one form is a horizontal staggered distribution, and the other form is a vertical staggered distribution.

[0062] In this embodiment, the copper wire needs to pass through the straightening mechanism 1 and the conveying mechanism 2 in sequence. The copper wire passing through the straightening mechanism 1 needs to pass through several grooves of the straightening circular sleeves 12, that is, it needs to pass through the grooves of the straightening circular sleeves 12 distributed in a longitudinal staggered manner and the grooves of the straightening circular sleeves 12 distributed in a transverse staggered manner respectively. The grooves of the straightening circular sleeves 12 on the straightening base 11 form a straight copper wire channel, thereby straightening the copper wire.

[0063] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0064] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A metal wire segment conveying device for a copper wire cutting machine, comprising a straightening mechanism (1), a conveying mechanism (2) and a cutting mechanism (5) arranged in a linear manner, characterized in that: The conveying mechanism (2) is provided with a first roller body (21) and a second roller body (22) which can rotate in opposite directions, and the second roller body (22) is provided with a receiving groove (221) for the metal wire to pass through; The second roller body (22) comprises an inner roller body (222) and an outer roller body (223) sleeved on the outer side of the inner roller body (222), the outer roller body (223) being symmetrically arranged at two ends of the inner roller body (222) and slidably connected to the inner roller body (222) via a sliding groove, and the containing groove (221) is the space between the two outer roller bodies (223); The conveying mechanism (2) is provided with a width control mechanism (3) for controlling the distance between the two outer roller bodies (223), and the conveying mechanism (2) is also provided with a longitudinal control mechanism (4) for controlling the distance between the first roller body (21) and the second roller body (22).

2. The metal wire segment conveying device of a copper wire cutting machine according to claim 1, characterized in that: The conveying mechanism (2) comprises a conveying frame (23), on which sliding plates (24) corresponding to the first roller body (21) and the second roller body (22) are slidably arranged, and two ends of the first roller body (21) are rotatably connected to the corresponding sliding plates (24), and two ends of the inner roller body (222) respectively penetrate the outer roller body (223) and are rotatably connected to the sliding plates (24) corresponding to the second roller body (22); The conveying mechanism (2) further comprises a first synchronous belt (25) wheel set, one end of the first synchronous belt (25) is fixedly connected to the inner roller body (222) of the second roller body (22) via a synchronous wheel, a rotating shaft (26) is provided on the sliding plate (24) corresponding to the first roller body (21), the other end of the first synchronous belt (25) is rotationally connected to the rotating shaft (26) via the synchronous wheel, and the ends of the rotating shaft (26) and the first roller body (21) are respectively provided with a first gear (261) and a second gear (211), and the first gear (261) is meshed with the second gear (211); The conveying frame (23) is provided with a first rotary driver (27), and an output end of the first rotary driver (27) is drivingly connected to the inner roller body (222).

3. The metal wire segment conveying device of a copper wire cutting machine according to claim 2, characterized in that: The conveying frame (23) is provided with a guide rod (28), a tensioning frame (281) and a tensioning wheel (282) rotatably mounted on the tensioning frame (281) are slidably provided on the guide rod (28), and an elastic element (283) is provided on the guide rod (28), and the elastic element (283) is used to push the tensioning wheel (282) through the tensioning frame (281) to put the first synchronous belt (25) in a tensioned state.

4. The metal wire segment conveying device of a copper wire cutting machine according to claim 3, characterized in that: The width control mechanism (3) comprises a guide frame (31) fixedly arranged on the conveying frame body (23); a sliding block (32) corresponding to the two outer roller bodies (223) is slidably mounted on the guide frame (31); the two sliding blocks (32) are rotatably connected to the two outer roller bodies (223) via a bearing seat; a first driving rod (33) is rotatably arranged on the guide frame (31); two sections of thread grooves are formed on the first driving rod (33) in opposite directions; the two sections of thread grooves are respectively threadedly connected to the two sliding blocks (32); A control frame (34) is arranged on the conveying frame (23), and a second rotation driver (35) for controlling the rotation of the first driving rod (33) is installed on the control frame (34).

5. The metal wire segment conveying device of a copper wire cutting machine according to claim 4, characterized in that: The longitudinal distance control mechanism (4) comprises a sliding frame (41) slidably mounted on the control frame body (34), wherein the sliding direction of the sliding frame (41) is perpendicular to the sliding direction of the sliding plate (24); Connecting rods (42), wherein there are two connecting rods (42), one end of one connecting rod (42) is hinged to the upper part of the sliding frame (41), the other end of one connecting rod (42) is hinged to the sliding plate (24) corresponding to the first roller body (21), one end of the second connecting rod (42) is hinged to the lower part of the sliding frame (41), and the other end of the second connecting rod (42) is hinged to the sliding plate (24) corresponding to the inner roller body (222); A second driving rod (43), the second driving rod (43) is rotatably disposed on the control frame (34), the second driving rod (43) penetrates the sliding frame (41) and is threadedly connected thereto, and the first driving rod (33) and the second driving rod (43) are transmission-connected via a second synchronous belt (44).

6. The metal wire segment conveying device of a copper wire cutting machine according to claim 5, characterized in that: The conveying device further comprises a straightening disc (6) and a straightening control mechanism (7). The straightening disc (6) is rotatably mounted on the conveying frame (23). The straightening disc (6) is provided with straightening holes (61) having different inner diameters matching the copper wire, and the center of the straightening hole (61) corresponds to the receiving hole. The straightening control mechanism (7) is used to drive the straightening disc (6) to rotate so as to switch the correspondence between the straightening hole (61) and the receiving groove (221).

7. The metal wire segment conveying device of a copper wire cutting machine according to claim 6, characterized in that: The straightening control mechanism (7) comprises a rotating frame (71) which is fixedly mounted on the conveyor frame. The straightening disk (6) is rotatably mounted on the rotating frame (71) via a bearing. A gear ring (72) is fixedly mounted on the straightening disk (6). A rack (73) is arranged on the sliding frame (41), and the rack (73) is meshed with the gear ring (72).

8. The metal wire segment conveying device of a copper wire cutting machine according to claim 1, characterized in that: The straightening mechanism (1) comprises a straightening base (11) and a plurality of straightening circular sleeves (12) rotatably mounted on the straightening base (11). The straightening circular sleeves (12) are provided with grooves. The straightening circular sleeves (12) are distributed on the straightening base (11) in two forms, one form being a horizontally staggered distribution and the other form being a vertically staggered distribution.

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