Molybdenum wire continuous bending device and machining method thereof

Abstract

The invention discloses a molybdenum wire continuous bending device and a machining method thereof, and belongs to the technical field of metal wire machining. The molybdenum wire continuous bending device comprises a rack, a wire core shaft and a moving assembly; a forming mechanism is mounted on the rack, and the forming mechanism comprises a bending cutter, a first extrusion forming cutter, a second extrusion forming cutter, a lower extrusion assembly and a marking forming cutter which are distributed at intervals in the circumferential direction of the axis of the wire core shaft and mounted on the rack through a moving assembly; through the mode, the straightened wire is discharged from the wire discharging hole of the wire core shaft; under the cooperative action of a bending tool, an upper extrusion assembly, a first extrusion forming tool, a second extrusion forming tool, a lower extrusion assembly, a marking forming tool and a cutting and separating tool, automatic and high-precision continuous machining and forming operation of finished products can be achieved, the batch machining requirement of the finished products is met, the productivity can be effectively improved, and the production efficiency is improved. The stability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wire processing, in particular to a molybdenum wire bending continuous bending device and a processing method thereof. BACKGROUND

[0002] Molybdenum wire is a kind of excellent metal wire material, which is widely used in many fields of industry due to its excellent high-temperature stability, mechanical strength, electrical conductivity and corrosion resistance.

[0003] In the prior art, the bending of molybdenum wire has high requirements, and manual processing cannot meet the processing precision of molybdenum wire and the continuous bending requirements of batch molybdenum wire.

[0004] Therefore, the present application provides a molybdenum wire bending continuous bending device and a processing method thereof to solve the above problems. SUMMARY

[0005] In view of the above shortcomings of the prior art, the present application provides a molybdenum wire bending continuous bending device and a processing method thereof.

[0006] To achieve the above purpose, the present application realizes the following technical scheme:

[0007] A molybdenum wire bending continuous bending device, comprising a rack, a wire core shaft and a moving assembly, a wire outlet hole extending along the wire core shaft axis direction is formed on the wire core shaft;

[0008] A forming mechanism is installed on the rack, the forming mechanism comprises a bending cutter, an upper extrusion assembly, a first extrusion forming cutter, a second extrusion forming cutter, a lower extrusion assembly and a marking forming cutter which are distributed on the rack in the circumferential direction of the wire core shaft axis, and the first extrusion forming cutter, the second extrusion forming cutter and the marking forming cutter are installed on the rack through the moving assembly; the moving assembly is used for controlling the corresponding cutter to approach or move away from the wire core shaft;

[0009] The bending cutter is used for processing the first bending part and the second bending part of the finished product;

[0010] The upper extrusion assembly and the lower extrusion assembly are used for cooperating to process the first extrusion part of the finished product;

[0011] The first extrusion forming cutter and the second extrusion forming cutter are used for cooperating to process the second extrusion part of the finished product;

[0012] The second extrusion forming cutter and the marking forming cutter are used for cooperating to process the marking part of the first extrusion part;

[0013] A cutting and separating cutter is also installed on the rack, which is used for cutting and separating the finished product from the subsequent wire.

[0014] Further, the upper extrusion assembly comprises an avoiding driving assembly and an upper elastic extrusion assembly, the avoiding driving assembly is installed on the rack through the moving assembly, the upper elastic extrusion assembly is installed on the upper end of the wire core shaft, and the avoiding driving assembly is used for providing power for the upper elastic extrusion assembly.

[0015] Further, the upper elastic extrusion assembly comprises an upper mounting block, an upper pressing block and a first spring, the upper mounting block is located on the upper side of the wire core shaft, a guide rod is fixedly installed at the lower end of the upper mounting block, the guide rod is in limiting sliding connection with the wire core shaft, the outer side of the guide rod is sleeved with the first spring, and the two ends of the first spring are fixedly connected with the upper mounting block and the wire core shaft respectively; the lower end of the upper mounting block is also fixedly installed with the upper pressing block.

[0016] The lower extrusion assembly comprises a lower extrusion head, a lower pressing block and a third spring, the lower extrusion head is fixedly installed at the moving end of the moving assembly, the lower pressing block is fixedly installed at the end of the lower extrusion head close to the wire core shaft, the outer side of the lower pressing block is sleeved with the third spring, and the two ends of the third spring are fixedly connected with the lower extrusion head and the wire core shaft respectively.

[0017] A first extrusion groove is formed on the upper pressing block, a second extrusion groove is formed on the lower pressing block, and the first extrusion groove of the upper pressing block and the second extrusion groove of the lower pressing block are matched to form a first extrusion part of the finished product.

[0018] Further, a bending groove is formed on the bending cutter.

[0019] Further, a fourth extrusion groove is formed on the first extrusion forming cutter, a third extrusion groove is formed on the second extrusion forming cutter, and the fourth extrusion groove and the third extrusion groove are matched to form a second extrusion part of the finished product.

[0020] Further, a positioning hole is formed on the first extrusion forming cutter, a positioning pin is fixedly installed on the second extrusion forming cutter, and the positioning hole and the positioning pin are matched to realize the positioning effect.

[0021] Further, a clamping groove is formed on the second extrusion forming cutter, a clamping block is fixedly installed on the marking forming cutter, and the clamping groove and the clamping block are matched to be inserted; a containing groove for containing the bending leg of the wire rod with the first extrusion part is formed on the clamping block, and a marking forming block for forming a marking part of the finished product is fixedly installed on the inner wall of the containing groove.

[0022] Further, the cutting and separating cutter comprises a cutter and a floating cutting supporting assembly, the cutter and the floating cutting supporting assembly are both installed on the rack through the moving assembly, and the two are oppositely arranged on the two sides of the wire core shaft to realize the cutting effect.

[0023] Further, the cutting and separating cutter further comprises a blowing pipe installed on the floating cutting supporting assembly, and the blowing pipe is used for blowing air to the finished product after the finished product is cut off.

[0024] In order to better achieve the purpose of the present application, the present application also provides a processing method of a molybdenum wire bending continuous bending device, comprising the following steps:

[0025] Step one: the wire is discharged from the wire discharge hole of the wire core shaft;

[0026] Step two: the upper extrusion assembly approaches the wire and first contacts the wire, then the first extrusion forming cutter abuts against the upper extrusion assembly to provide support, and then the lower extrusion assembly abuts against the upper extrusion assembly, so that the wire is extruded and formed into a first extrusion part of the finished product by the cooperation of the first extrusion groove on the upper extrusion assembly and the fourth extrusion groove on the lower extrusion assembly;

[0027] Step three: the bending cutter approaches the wire to make the wire enter the bending groove, and the wire is downward bent and formed into a first bending part, then the wire is discharged from the wire discharge hole, and the bending cutter approaches the wire again to downward bend and form a second bending part of the wire;

[0028] Step four: the first extrusion forming cutter and the second extrusion forming cutter both approach the wire, so that the wire is extruded and formed into a second extrusion part of the finished product by the cooperation of the fourth extrusion groove on the first extrusion forming cutter and the third extrusion groove on the second extrusion forming cutter;

[0029] Step five: the marking forming cutter approaches the first extrusion forming cutter, the bending leg of the wire with the first extrusion part is pressed against the clamping groove side wall of the second extrusion forming cutter, so that it is limited by the cooperation of the clamping groove side wall and the accommodating groove, and a marking part is formed on the first extrusion part under the action of the marking forming block;

[0030] Step six: the cutting knife and the floating cutting support assembly cut and cut the finished product, and the blowing pipe blows air to the finished product after the finished product is cut off, to assist the finished product to separate from the subsequent wire.

[0031] Compared with the prior art, the present application has the beneficial effects that: after the straightened wire is discharged from the wire discharge hole of the wire core shaft, under the cooperation of the bending cutter, the upper extrusion assembly, the first extrusion forming cutter, the second extrusion forming cutter, the lower extrusion assembly, the marking forming cutter and the cutting separation cutter, the automatic, high-precision continuous processing and forming operation of the finished product can be realized, the batch processing demand of the finished product can be met, the production capacity can be effectively improved, and the stability can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0033] Figure 1 Structure perspective view of a finished product;

[0034] Figure 2 Structure perspective view of a finished product; Figure One ;

[0035] Figure 3 Structure perspective view of a finished product; Figure Two ;

[0036] Figure 4 Structure perspective view of a finished product; Figure Three ;

[0037] Figure 5 Structure perspective view of a finished product; Figure Four ;

[0038] Figure 6 Structure perspective view of a finished product; Figure Five ;

[0039] Figure 7 Structure perspective view of a finished product;

[0040] Figure 8 Structure perspective view of a finished product;

[0041] Figure 9 Structure perspective view of a finished product; Figure One ;

[0042] Figure 10 Structure perspective view of a finished product; Figure Two ;

[0043] Figure 11 Structure perspective view of a finished product; Figure Three ;

[0044] Figure 12 Structure perspective view of a finished product;

[0045] The reference signs in the drawings respectively represent:

[0046] 1, rack; 2, wire core shaft; 3, forming mechanism; 31, bending tool; 311, bending groove; 32, upper extrusion assembly; 321, upper extrusion head; 322, upper roller; 323, upper mounting block; 324, upper pressing block; 325, first spring; 33, first extrusion forming tool; 331, fourth extrusion groove; 333, positioning hole; 34, second extrusion forming tool; 341, third extrusion groove; 342, clamping groove; 343, positioning pin; 35, lower extrusion assembly; 351, lower extrusion head; 352, lower pressing block; 353, second spring; 36, marking forming tool; 361, clamping block; 362, accommodating groove; 363, marking forming block; 37, cutting and separating tool; 371, cutting knife; 372, receiving block; 373, sliding rod; 374, third spring; 375, blowing pipe; 4, moving assembly; 41, sliding seat; 42, sliding block; 5, finished product; 51, first extrusion part; 52, first bending part; 53, second bending part; 54, second extrusion part; 55, marking part. DETAILED DESCRIPTION

[0047] To make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will briefly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0048] In the following description, "left", "right", "front", "back", "up", and "down" are oriented in the perspective view.

[0049] In some embodiments, a molybdenum wire bending continuous bending device is used for processing metal wire into a finished product 5.

[0050] Referring to the drawings of the specification Figures 1-6 The finished product 5 includes a first extrusion part 51, a first bending part 52, a second bending part 53, a second extrusion part 54, and a marking part 55. The two ends of the wire are bent by 90 degrees in the same direction through the cooperation of the first bending part 52 and the second bending part 53, and the two extended ends of the wire are respectively provided with the first extrusion part 51 and the second extrusion part 54. The second extrusion part 54 is provided with the marking part 55.

[0051] Referring to the drawings of the specification Figure 7 and Figure 8 The molybdenum wire bending continuous bending device includes a rack 1, a wire core shaft 2, and a moving assembly 4. The wire core shaft 2 is provided with a wire outlet hole extending along the axis direction of the wire core shaft 2, and the metal wire is discharged from the wire outlet hole.

[0052] The bending tool 31, the upper extrusion assembly 32, the first extrusion forming tool 33, the second extrusion forming tool 34, the lower extrusion assembly 35 and the marking forming tool 36 are circumferentially and spacedly arranged on the rack 1 around the axis of the wire core shaft 2, and the first extrusion forming tool 33, the second extrusion forming tool 34 and the marking forming tool 36 are installed on the rack 1 through the moving assembly 4; the moving assembly 4 is used for controlling the corresponding tool to approach or move away from the wire core shaft 2.

[0053] The bending tool 31 is used for processing the first bending part 52 and the second bending part 53 of the finished product 5, the upper extrusion assembly 32 and the lower extrusion assembly 35 are used for cooperating to process the first extrusion part 51 of the finished product 5, the first extrusion forming tool 33 and the second extrusion forming tool 34 are used for cooperating to process the second extrusion part 54 of the finished product 5, and the second extrusion forming tool 34 and the marking forming tool 36 are used for cooperating to process the marking part 55 of the first extrusion part 51; the cutting and separating tool 37 is also installed on the rack 1, and the cutting and separating tool 37 is used for cutting and separating the finished product 5 from the subsequent wire rod.

[0054] In the present application, after the straightened wire rod is discharged from the wire discharge hole of the wire core shaft 2, the automatic, high-precision and continuous processing and forming operation of the finished product 5 can be realized under the cooperation of the bending tool 31, the upper extrusion assembly 32, the first extrusion forming tool 33, the second extrusion forming tool 34, the lower extrusion assembly 35, the marking forming tool 36 and the cutting and separating tool 37, which meets the batch processing requirement of the finished product 5, and can effectively improve the production capacity and stability.

[0055] Please refer to the accompanying drawings of the specification Figure 2 , Figure 9 , Figure 10 and Figure 11 The upper extrusion assembly 32 comprises an avoiding driving assembly and an upper elastic extrusion assembly, the avoiding driving assembly is installed on the rack 1 through the moving assembly 4, and the upper elastic extrusion assembly is installed on the upper end of the wire core shaft 2; the avoiding driving assembly is used for providing power for the upper elastic extrusion assembly.

[0056] The avoiding driving assembly comprises an upper extrusion head 321 and an upper roller 322, the upper extrusion head 321 is fixedly installed on the moving end of the moving assembly 4, and the upper roller 322 is rotatably installed on one end of the upper extrusion head 321 close to the wire core shaft 2.

[0057] The upper elastic extrusion assembly comprises an upper mounting block 323, an upper pressing block 324 and a first spring 325, the upper mounting block 323 is located on the upper side of the wire core shaft 2, a guide rod is fixedly installed at the lower end of the upper mounting block 323, the guide rod is in limiting sliding connection with the wire core shaft 2, the outer side of the guide rod is sleeved with the first spring 325, and the two ends of the first spring 325 are fixedly connected with the upper mounting block 323 and the wire core shaft 2 respectively; the lower end of the upper mounting block 323 is also fixedly installed with the upper pressing block 324;

[0058] The lower extrusion assembly 35 comprises a lower extrusion head 351, a lower pressing block 352 and a second spring 353, the lower extrusion head 351 is fixedly installed at the moving end of the moving assembly 4, the lower extrusion head 351 is fixedly installed with the lower pressing block 352 at the end close to the wire core shaft 2, the outer side of the lower pressing block 352 is sleeved with the second spring 353, and the two ends of the second spring 353 are fixedly connected with the lower extrusion head 351 and the wire core shaft 2 respectively;

[0059] The upper pressing block 324 is provided with a first extrusion groove, the lower pressing block 352 is provided with a second extrusion groove, and the first extrusion groove of the upper pressing block 324 and the second extrusion groove of the lower pressing block 352 are matched to form a first extrusion part 51 of the finished product 5;

[0060] In the present application, after the wire is stretched out from the wire outlet hole, the upper extrusion head 321 drives the upper roller 322 to abut against the upper mounting block 323, so that the upper mounting block 323 drives the upper pressing block 324 to vertically move downwards, and at the same time, the lower extrusion head 351 drives the lower pressing block 352 to vertically move upwards, so that the wire is extruded by the first extrusion groove and the second extrusion groove to form the first extrusion part 51 of the finished product 5.

[0061] Please refer to the Figure 3 , Figure 4 and Figure 9 of the accompanying drawings of the specification, the bending cutter 31 is provided with a bending groove 311, after the first extrusion part 51 of the finished product 5 is formed, the bending cutter 31 is close to the wire to make the wire enter the bending groove 311, the wire is bent downwards to form a first bending part 52, and then the wire is stretched out to a set length, so that the bending cutter 31 is close to the wire again to bend the wire downwards to form a second bending part 53.

[0062] Please refer to the Figure 5 , Figure 9 , Figure 10 , Figure 11 and Figure 12 of the accompanying drawings of the specification, the first extrusion forming cutter 33 and the second extrusion forming cutter 34 are oppositely arranged, and the marking forming cutter 36 is arranged perpendicularly to the second extrusion forming cutter 34;

[0063] The fourth extrusion groove 331 is arranged on the first extrusion forming cutter 33, and the third extrusion groove 341 is arranged on the second extrusion forming cutter 34; the fourth extrusion groove 331 and the third extrusion groove 341 cooperate to form the second extrusion part 54 of the finished product 5.

[0064] The positioning hole 333 is arranged on the first extrusion forming cutter 33, and the positioning pin 343 is fixedly installed on the second extrusion forming cutter 34; the positioning hole 333 and the positioning pin 343 cooperate to achieve the positioning effect.

[0065] The clamping groove 342 is arranged on the second extrusion forming cutter 34, and the clamping block 361 is fixedly installed on the marking forming cutter 36; the clamping groove 342 and the clamping block 361 cooperate to be inserted; the accommodation groove 362 for accommodating the bent foot of the wire with the first extrusion part 51 is arranged on the clamping block 361, and the marking forming block 363 for forming the marking part 55 of the finished product 5 is fixedly installed on the inner wall of the accommodation groove 362.

[0066] In the application, the first extrusion forming cutter 33 and the second extrusion forming cutter 34 are both close to the wire, and are positioned by the positioning hole 333 and the positioning pin 343; the wire is extruded by the first extrusion forming cutter 33 and the second extrusion forming cutter 34, and is cooperatively extruded by the fourth extrusion groove 331 and the third extrusion groove 341 to form the second extrusion part 54 of the finished product 5; then the marking forming cutter 36 is close to the first extrusion forming cutter 33, the bent foot of the wire with the first extrusion part 51 is pressed to the side wall of the clamping groove 342 of the second extrusion forming cutter 34, so that the bent foot is cooperatively accommodated by the side wall of the clamping groove 342 and the accommodation groove 362, and the marking part 55 is formed on the first extrusion part 51 under the action of the marking forming block 363.

[0067] Please refer to the accompanying drawings of the specification Figure 6 and Figure 10 The cutting and separating cutter 37 comprises a cutter 371 and a floating cutting supporting assembly, and the cutter 371 and the floating cutting supporting assembly are both installed on the rack 1 through the moving assembly 4 and are oppositely arranged on both sides of the wire core shaft 2 to achieve the cutting effect.

[0068] The floating cutting supporting assembly comprises a supporting block 372, a sliding rod 373 and a third spring 374; one end of the sliding rod 373 is limitingly and slidably connected with the moving end of the moving assembly 4, and the other end of the sliding rod 373 is fixedly connected with the supporting block 372; the third spring 374 is sleeved outside the sliding rod 373, and the two ends of the third spring 374 are respectively abutted with the supporting block 372 and the moving end of the moving assembly 4; the cutter 371 and the supporting block 372 cooperate to achieve the cutting effect of the finished product 5.

[0069] The cutting-off separating cutter 37 further comprises a blowing pipe 375 mounted on the floating bearing assembly, used for blowing air to the finished piece 5 after the finished piece 5 is cut off, to assist the finished piece 5 to separate from the subsequent wire.

[0070] In some embodiments, as shown in Figure 2 As a preferred embodiment of the present application, the moving assembly 4 comprises a sliding seat 41 and a sliding block 42, the sliding seat 41 is fixedly connected with the rack 1, and the sliding block 42 is limitingly and slidably connected with the sliding seat 41, so that the sliding block 42 can slide away from or close to the wire core shaft 2 along the sliding seat 41; the rack 1 is further provided with a driving mechanism (not shown in the figure) for driving the sliding block 42 to slide; in this embodiment, the driving mechanism can be of the prior art, such as a servo linear slide, a cam driving structure, etc., which will not be described in more detail here.

[0071] In some embodiments, as shown in Figures 1-12 As a preferred embodiment of the present application, a processing method of a molybdenum wire bending continuous bending device comprises the following steps:

[0072] Step one: the wire is discharged from the wire discharge hole of the wire core shaft 2;

[0073] Step two: the upper extrusion head 321 drives the upper roller 322 to abut against the upper mounting block 323, so that the upper mounting block 323 drives the upper pressing block 324 to vertically move downward, while the lower extrusion head 351 drives the lower pressing block 352 to vertically move upward, so that the wire is extruded into the first extruded part 51 of the finished piece 5 by the cooperation of the first extruded groove and the second extruded groove;

[0074] Step three: the bending cutter 31 approaches the wire to make the wire enter the bending groove 311, and the wire is bent downward to form the first bending part 52, and then the wire is discharged from the wire discharge hole, so that the bending cutter 31 approaches the wire again to bend the wire downward to form the second bending part 53;

[0075] Step four: the first extruded forming cutter 33 and the second extruded forming cutter 34 both approach the wire, so that the wire is extruded into the second extruded part 54 of the finished piece 5 by the cooperation of the fourth extruded groove 331 on the first extruded forming cutter 33 and the third extruded groove 341 on the second extruded forming cutter 34;

[0076] Step five: the marking forming cutter 36 approaches the first extruded forming cutter 33, and the bent leg of the wire with the first extruded part 51 is pressed against the side wall of the clamping groove 342 of the second extruded forming cutter 34, so that it is cooperatively limited by the side wall of the clamping groove 342 and the accommodating groove 362, and a marking part 55 is formed on the first extruded part 51 under the action of the marking forming block 363;

[0077] Step six: the cutter 371 and the floating cutting support assembly cut and separate the finished piece 5, and the blowing pipe 375 blows air to the finished piece 5 after the finished piece 5 is cut, to assist the finished piece 5 to separate from the subsequent wire.

[0078] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A continuous bending device for bending molybdenum wire, comprising a rack (1), a wire core shaft (2) and a moving assembly (4), wherein a wire outlet hole extending along the axis of the wire core shaft (2) is formed on the wire core shaft (2), and characterized in that: a forming mechanism (3) is installed on the rack (1), the forming mechanism (3) comprises a bending cutter (31) distributed on the rack (1) in a circumferential direction around the axis of the wire core shaft (2), an upper extrusion assembly (32), a first extrusion forming cutter (33), a second extrusion forming cutter (34), a lower extrusion assembly (35) and a marking forming cutter (36), and the first extrusion forming cutter (33), the second extrusion forming cutter (34) and the marking forming cutter (36) are all installed on the rack (1) through the moving assembly (4); the moving assembly (4) is used for controlling the corresponding cutter to approach or move away from the wire core shaft (2); the bending cutter (31) is used for processing a first bending part (52) and a second bending part (53) of a finished product (5); the upper extrusion assembly (32) and the lower extrusion assembly (35) are used for cooperating to process a first extrusion part (51) of the finished product (5); the first extrusion forming cutter (33) and the second extrusion forming cutter (34) are used for cooperating to process a second extrusion part (54) of the finished product (5); the second extrusion forming cutter (34) and the marking forming cutter (36) are used for cooperating to process a marking part (55) of the first extrusion part (51); a cutting and separating cutter (37) is further installed on the rack (1), and the cutting and separating cutter (37) is used for cutting and separating the finished product (5) from subsequent wire rods. The upper extrusion assembly (32) comprises an avoiding driving assembly and an upper elastic extrusion assembly, the avoiding driving assembly is installed on the rack (1) through the moving assembly (4), and the upper elastic extrusion assembly is installed on the upper end of the wire core shaft (2); the avoiding driving assembly is used for providing power for the upper elastic extrusion assembly. The upper elastic extrusion assembly comprises an upper mounting block (323), an upper pressing block (324) and a first spring (325), the upper mounting block (323) is located on the upper side of the wire core shaft (2), a guide rod is fixedly installed at the lower end of the upper mounting block (323), the guide rod is limitingly and slidably connected with the wire core shaft (2), the first spring (325) is sleeved on the outer side of the guide rod, and the two ends of the first spring (325) are fixedly connected with the upper mounting block (323) and the wire core shaft (2) respectively; the upper pressing block (324) is also fixedly installed at the lower end of the upper mounting block (323). The lower extrusion assembly (35) comprises a lower extrusion head (351), a lower pressing block (352) and a second spring (353), the lower extrusion head (351) is fixedly installed at the moving end of the moving assembly (4), the lower pressing block (352) is fixedly installed at the end of the lower extrusion head (351) close to the wire core shaft (2), the second spring (353) is sleeved on the outer side of the lower pressing block (352), and the two ends of the second spring (353) are fixedly connected with the lower extrusion head (351) and the wire core shaft (2) respectively. ​ ​ ​ 2. The molybdenum wire bending continuous bending apparatus according to claim 1, characterized by, ​ 3. The molybdenum wire bending continuous bending apparatus according to claim 2, characterized by, ​ ​ The upper pressing block (324) is provided with a first extrusion groove, and the lower pressing block (352) is provided with a second extrusion groove; the first extrusion groove of the upper pressing block (324) and the second extrusion groove of the lower pressing block (352) cooperate to form a first extrusion part (51) of the finished product (5).

4. The molybdenum wire bending continuous bending apparatus according to claim 3, characterized by The bending tool (31) is provided with a bending groove (311).

5. The molybdenum wire bending continuous bending apparatus according to claim 4, wherein The first extrusion forming tool (33) is provided with a fourth extrusion groove (331), and the second extrusion forming tool (34) is provided with a third extrusion groove (341); the fourth extrusion groove (331) and the third extrusion groove (341) cooperate to form a second extrusion part (54) of the finished product (5).

6. The molybdenum wire bending continuous bending apparatus according to claim 5, wherein The first extrusion forming tool (33) is provided with a positioning hole (333), and the second extrusion forming tool (34) is fixedly provided with a positioning pin (343); the positioning hole (333) and the positioning pin (343) cooperate to achieve the positioning effect.

7. The molybdenum wire bending continuous bending apparatus according to claim 6, characterized by The second extrusion forming tool (34) is provided with a clamping groove (342), and the marking forming tool (36) is fixedly provided with a clamping block (361); the clamping groove (342) and the clamping block (361) cooperate to achieve the clamping effect. The clamping block (361) is provided with an accommodation groove (362) for accommodating the bending foot of the first extrusion part (51) of the wire, and the inner wall of the accommodation groove (362) is fixedly provided with a marking forming block (363) for forming a marking part (55) of the finished product (5).

8. The molybdenum wire bending continuous bending apparatus according to claim 7, wherein The cutting and separating tool (37) comprises a cutter (371) and a floating cutting supporting assembly; the cutter (371) and the floating cutting supporting assembly are both installed on the rack (1) through the moving assembly (4) and are oppositely arranged on both sides of the wire core shaft (2) to achieve the cutting effect.

9. The molybdenum wire bending continuous bending apparatus according to claim 8, wherein The cutting and separating tool (37) further comprises a blowing pipe (375) installed on the floating cutting supporting assembly; the blowing pipe (375) is used for blowing air to the finished product (5) after the finished product (5) is cut off.

10. A processing method using the continuous bending device for bending molybdenum wire according to claim 9, characterized by, The method comprises the following steps: Step one: the wire is discharged from the wire discharge hole of the wire core shaft (2); Step two: the avoiding driving assembly controls the upper mounting block (323) to drive the upper pressing block (324) to vertically move downward, and simultaneously controls the lower extrusion head (351) to drive the lower pressing block (352) to vertically move upward, so that the wire is extruded by the first extrusion groove and the second extrusion groove to form the first extrusion part (51) of the finished product (5); Step three: the bending tool (31) approaches the wire to make the wire enter the bending groove (311), and the wire is bent downward to form the first bending part (52); then the wire is discharged from the wire discharge hole, and the bending tool (31) approaches the wire again to bend the wire downward to form the second bending part (53); Step four: the first extrusion forming tool (33) and the second extrusion forming tool (34) both approach the wire, so that the wire is extruded by the fourth extrusion groove (331) on the first extrusion forming tool (33) and the third extrusion groove (341) on the second extrusion forming tool (34) to form the second extrusion part (54) of the finished product (5); Step five: the first extrusion forming tool (33) and the second extrusion forming tool (34) are separated from the wire, and the wire is discharged from the wire discharge hole of the wire core shaft (2); Step five: the marking forming tool (36) is close to the first extrusion forming tool (33), the bent leg of the wire with the first extrusion part (51) is pressed to the side wall of the clamping groove (342) of the second extrusion forming tool (34), so that it is limited by the side wall of the clamping groove (342) and the accommodating groove (362), and a marking part (55) is formed on the first extrusion part (51) under the action of the marking forming block (363); Step six: the cutter (371) and the floating cutting support assembly cut and cut the finished product (5) at the same time, and the blowing pipe (375) blows air to the finished product (5) after the finished product (5) is cut off, assisting the finished product (5) to separate from the subsequent wire.

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