Metal wire rotating mechanism

Abstract

A metal wire rotating mechanism comprises a driven wheel mounting seat capable of moving in the front-back direction, a driven wheel, a driving wheel mounting seat mounted on the right side of the driven wheel mounting seat and capable of moving in the front-back direction, a driving wheel, a driven fixing block, a driving fixing block, a front-back push-pull rod and a front-back push-pull rod connecting block. The front-back push-pull rod is connected with the front-back push-pull cylinder; the driven wheel and the driving wheel are rotatably mounted in the driven wheel mounting seat and the driving wheel mounting seat; the driven fixing block and the driving fixing block are fixedly mounted on the driven wheel mounting seat and the driving wheel mounting seat; the front-back push-pull rod connecting block, the driven fixing block and the driving fixing block are movably connected to the left end, the middle part and the right end of the front-back push-pull rod respectively; the front-back push-pull rod connecting seat is fixedly arranged on the front-back push-pull rod connecting block; a piston rod of the front-back push-pull air cylinder is directly or indirectly connected to the front-back push-pull rod connecting base. The metal wire conveying device enables downward conveying of metal wires to be smoother, and is reliable in quality and high in working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent manufacturing, in particular to a wire cutting machine. Background Art

[0002] In existing wire cutting machines, metal wire is used for cutting. The transmission of the metal wire is often hindered due to inaccurate positioning and other reasons. It needs to be adjusted manually by workers, and often requires downtime. The production quality is difficult to guarantee and the work efficiency is low. Summary of the invention

[0003] The technical problem to be solved by the utility model is to overcome the problem in the prior art that the transmission of metal wire is easily obstructed, resulting in difficulty in ensuring production quality and low work efficiency, and to provide a metal wire rotating mechanism to make the transmission of the metal wire smoother and unobstructed, with reliable production quality and high work efficiency.

[0004] In order to solve the above technical problems, the utility model proposes the following technical solutions: a metal wire rotating mechanism, which includes a driven wheel mounting seat capable of moving along the front-back direction, a driven wheel, a driving wheel mounting seat installed on the right side of the driven wheel mounting seat and capable of moving along the front-back direction, a driving wheel, a driven fixing block, an active fixing block, front and rear push-pull rods, front and rear push-pull rod connecting blocks, front and rear push-pull rod connecting seats and front and rear push-pull cylinders;

[0005] The driven wheel is rotatably mounted in the driven wheel mounting seat and its axis is along the front-rear direction;

[0006] The driving wheel is rotatably mounted in the driving wheel mounting seat and its axis is along the front-rear direction;

[0007] The driven fixing block and the active fixing block are respectively directly or indirectly mounted and fixed on the driven wheel mounting seat and the active wheel mounting seat;

[0008] The driven fixing block and the active fixing block are movably connected to the middle part and the right end of the front and rear push-pull rods respectively;

[0009] The front and rear push-pull rod connecting block is movably connected to the left end of the front and rear push-pull rod;

[0010] The front and rear push-pull rod connecting seats are installed and fixed on the front and rear push-pull rod connecting blocks;

[0011] The piston rods of the front and rear push-pull cylinders are directly or indirectly connected to the front and rear push-pull rod connecting seats.

[0012] The above technical solution is further limited in that: the wire rotating mechanism also includes a front and rear push-pull cylinder connecting block, the front end of which is connected to the front and rear push-pull rod connecting seat, and the rear end of which is connected to the piston rod of the front and rear push-pull cylinder.

[0013] The above technical solution is further limited in that: the wire rotating mechanism also includes a mounting base plate, a mounting cover, a driven wheel mounting seat fixing frame, a plurality of fixing frame mounting rods fixed in the mounting cover along the front-back direction, and a plurality of mounting seat mounting rods fixed in the mounting cover along the front-back direction;

[0014] The mounting cover is mounted and fixed on the top surface of the mounting base plate;

[0015] The driven wheel mounting seat fixing frame includes a fixing frame top plate, and the fixing frame top plate is provided with a plurality of fixing frame through holes penetrating from the front side surface to the rear side surface along the front-to-back direction;

[0016] The front and rear ends of the plurality of fixing frame mounting rods are fixed on the mounting cover, and the middle parts are inserted into the plurality of fixing frame through holes, so that the driven wheel mounting seat fixing frame is installed on the left side in the mounting cover and can move along the front-rear direction on the plurality of fixing frame mounting rods;

[0017] The driven wheel mounting seat is installed below the driven wheel mounting seat fixing frame, so the driven wheel mounting seat can move along the front-rear direction;

[0018] The driving wheel mounting seat comprises a mounting seat top block, and the mounting seat top block is provided with a plurality of penetrating mounting seat through holes along the front-to-back direction from the front side to the rear side;

[0019] The front and rear ends of the plurality of mounting seat mounting rods are fixed on the mounting cover, and the middle parts are inserted into the plurality of mounting seat through holes, so that the driving wheel mounting seat is installed on the right side in the mounting cover and can move along the front and rear directions on the plurality of mounting seat mounting rods.

[0020] The above technical solution is further limited in that: a driven fixing groove is opened on the top surface of the top plate of the fixing frame along the left-right direction, and an active fixing groove is opened on the top surface of the top block of the mounting seat along the left-right direction, and the driven fixing block and the active fixing block are respectively installed and fixed in the driven fixing groove and the active fixing groove.

[0021] The above technical solution is further limited in that: the wire rotating mechanism also includes a driven wheel push-pull cylinder, a connecting block, a driving wheel rotating shaft, a transmission gear, a driving wheel motor and a driving wheel motor gear;

[0022] The left end of the connecting block is connected to the piston rod of the driven wheel push-pull cylinder, and the right end is connected to the driven wheel mounting seat. The driven wheel push-pull cylinder drives the driven wheel mounting seat and the driven wheel to move in the left and right directions.

[0023] The driving wheel shaft is fixed on the driving wheel axis position, the transmission gear is connected to the rear end of the driving wheel shaft, the driving wheel motor is fixed on the rear side of the driving wheel, the driving wheel motor gear is fixed on the rotating shaft of the driving wheel motor and meshes with the transmission gear, and the driving wheel motor drives the driving wheel to rotate synchronously.

[0024] In order to solve the above technical problems, the utility model proposes the following technical solutions: a metal wire rotating mechanism, which includes a driven wheel mounting seat capable of moving along the front-rear direction, a driven wheel, a driving wheel mounting seat installed on the left side of the driven wheel mounting seat and capable of moving along the front-rear direction, a driving wheel, a driven fixing block, an active fixing block, front and rear push-pull rods, front and rear push-pull rod connecting blocks, front and rear push-pull rod connecting seats and front and rear push-pull cylinders;

[0025] The driven wheel is rotatably mounted in the driven wheel mounting seat and its axis is along the front-rear direction;

[0026] The driving wheel is rotatably mounted in the driving wheel mounting seat and its axis is along the front-rear direction;

[0027] The driven fixing block and the active fixing block are respectively directly or indirectly mounted and fixed on the driven wheel mounting seat and the active wheel mounting seat;

[0028] The driven fixing block and the active fixing block are movably connected to the middle part and the left end of the front and rear push-pull rods respectively;

[0029] The front and rear push-pull rod connecting block is movably connected to the right end of the front and rear push-pull rod;

[0030] The front and rear push-pull rod connecting seats are installed and fixed on the front and rear push-pull rod connecting blocks;

[0031] The piston rods of the front and rear push-pull cylinders are directly or indirectly connected to the front and rear push-pull rod connecting seats.

[0032] The above technical solution is further limited in that: the wire rotating mechanism also includes a front and rear push-pull cylinder connecting block, the front end of which is connected to the front and rear push-pull rod connecting seat, and the rear end of which is connected to the piston rod of the front and rear push-pull cylinder.

[0033] The above technical solution is further limited in that: the wire rotating mechanism also includes a mounting base plate, a mounting cover, a driven wheel mounting seat fixing frame, a plurality of fixing frame mounting rods fixed in the mounting cover along the front-back direction, and a plurality of mounting seat mounting rods fixed in the mounting cover along the front-back direction;

[0034] The mounting cover is mounted and fixed on the top surface of the mounting base plate;

[0035] The driven wheel mounting seat fixing frame includes a fixing frame top plate, and the fixing frame top plate is provided with a plurality of fixing frame through holes penetrating from the front side surface to the rear side surface along the front-to-back direction;

[0036] The front and rear ends of the plurality of fixing frame mounting rods are fixed on the mounting cover, and the middle parts are inserted into the plurality of fixing frame through holes, so that the driven wheel mounting seat fixing frame is installed on the right side in the mounting cover and can move along the front-rear direction on the plurality of fixing frame mounting rods;

[0037] The driven wheel mounting seat is installed below the driven wheel mounting seat fixing frame, so the driven wheel mounting seat can move along the front-rear direction;

[0038] The driving wheel mounting seat comprises a mounting seat top block, and the mounting seat top block is provided with a plurality of penetrating mounting seat through holes along the front-to-back direction from the front side to the rear side;

[0039] The front and rear ends of the plurality of mounting seat mounting rods are fixed on the mounting cover, and the middle parts are inserted into the plurality of mounting seat through holes, so that the driving wheel mounting seat is installed on the left side in the mounting cover and can move along the front and rear directions on the plurality of mounting seat mounting rods.

[0040] The above technical solution is further limited in that: a driven fixing groove is opened on the top surface of the top plate of the fixing frame along the left-right direction, and an active fixing groove is opened on the top surface of the top block of the mounting seat along the left-right direction, and the driven fixing block and the active fixing block are respectively installed and fixed in the driven fixing groove and the active fixing groove.

[0041] The above technical solution is further limited in that: the wire rotating mechanism also includes a driven wheel push-pull cylinder, a connecting block, a driving wheel rotating shaft, a transmission gear, a driving wheel motor and a driving wheel motor gear;

[0042] The right end of the connecting block is connected to the piston rod of the driven wheel push-pull cylinder, and the left end is connected to the driven wheel mounting seat. The driven wheel push-pull cylinder drives the driven wheel mounting seat and the driven wheel to move in the left and right directions.

[0043] The driving wheel shaft is fixed on the driving wheel axis position, the transmission gear is connected to the rear end of the driving wheel shaft, the driving wheel motor is fixed on the rear side of the driving wheel, the driving wheel motor gear is fixed on the rotating shaft of the driving wheel motor and meshes with the transmission gear, and the driving wheel motor drives the driving wheel to rotate synchronously.

[0044] Compared with the prior art, the utility model has the following beneficial effects: the metal wire rotating mechanism of the utility model can make the driving wheel and the driven wheel move in the front-rear direction with different amplitudes, so that the metal wire clamped therein rotates, thereby overcoming the obstacles encountered when the metal wire is transmitted downward, making the downward transmission of the metal wire smoother and unobstructed, with reliable production quality and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is an exploded view of the metal wire rotating mechanism of the utility model.

[0046] Figure 2 It is a partial exploded view of the metal wire rotating mechanism of the utility model.

[0047] Figure 3It is a three-dimensional combination diagram of the metal wire rotating mechanism of the utility model.

[0048] Figure 4 It is a three-dimensional combination diagram of the metal wire rotating mechanism of the utility model. DETAILED DESCRIPTION

[0049] See also Figures 1 to 4 A wire rotating mechanism includes a mounting base plate 11, a mounting cover 13, a driven wheel mounting seat fixing frame 15, two fixing frame mounting rods 17, a driven wheel mounting seat 19, a driven wheel 21, a driven wheel push-pull cylinder 23, a connecting block 25, a driving wheel mounting seat 27, two mounting seat mounting rods 28, a driving wheel 29, a driving wheel rotating shaft 30, a transmission gear 31, a driving wheel motor 33, a driving wheel motor gear 35, a driven fixing block 37, an active fixing block 39, front and rear push-pull rods 41, front and rear push-pull rod connecting blocks 43, front and rear push-pull rod connecting seats 45, front and rear push-pull cylinder connecting blocks 47 and front and rear push-pull cylinders 49.

[0050] The mounting cover 13 includes a top shell 132, a left front plate 1322 and a right front plate 1324 extending vertically downward from the left and right sides of the front end of the top shell 132, and a left rear plate (not shown) and a right rear plate 1328 extending vertically downward from the left and right sides of the rear end of the top shell 132.

[0051] The left front plate 1322 , the right front plate 1324 , the left rear plate (not shown) and the right rear plate 1328 of the mounting cover 13 are mounted and fixed on the top surface of the mounting base plate 11 .

[0052] The driven wheel mounting seat fixing frame 15 comprises a fixing frame top plate 152, and a driven fixing groove 1522 is provided on the top surface of the fixing frame top plate 152 along the left-right direction. The fixing frame top plate 152 is provided with two fixing frame through holes 1524 penetrating along the front-back direction from the front side to the rear side.

[0053] The front ends of the two fixing frame mounting rods 17 are fixedly mounted on the left front plate 1322 of the mounting cover 13, the middle parts are inserted into the two fixing frame through holes 1524 of the driven wheel mounting seat fixing frame 15, and the rear ends are fixedly mounted on the left rear plate (not shown) of the mounting cover 13, so that the driven wheel mounting seat fixing frame 15 is installed on the left side in the mounting cover 13 and can move along the front and rear directions on the two fixing frame mounting rods 17.

[0054] The driven wheel mounting seat 19 is installed below the driven wheel mounting seat fixing frame 15 , and the driven wheel mounting seat 19 can move along the left-right direction relative to the driven wheel mounting seat fixing frame 15 .

[0055] The driven wheel 21 is rotatably mounted in the driven wheel mounting seat 19 and its axis is along the front-rear direction.

[0056] The driven wheel push-pull cylinder 23 is installed and fixed on the left end of the driven wheel mounting seat fixing frame 15.

[0057] The left end of the connecting block 25 is connected to the piston rod (not numbered) of the driven wheel push-pull cylinder 23 , and the right end is connected to the driven wheel mounting seat 19 .

[0058] The driven wheel push-pull cylinder 23 is started, and its piston rod (not numbered) is extended and retracted, driving the driven wheel mounting seat 19 and the driven wheel 21 to move in the left-right direction.

[0059] The driving wheel mounting seat 27 includes a mounting seat top block 272, and an active fixing groove 2722 is provided on the top surface of the mounting seat top block 272 along the left-right direction. The mounting seat top block 272 is provided with two penetrating mounting seat through holes 2724 along the front-back direction from the front side to the rear side.

[0060] The front ends of the two mounting seat mounting rods 28 are fixed on the right front plate 1324 of the mounting cover 13, the middle parts are inserted into the mounting seat through holes 2724 of the driving wheel mounting seat 27, and the rear ends are fixed on the right rear plate 1328 of the mounting cover 13, so that the driving wheel mounting seat 27 is installed on the right side of the mounting cover 13 and can move along the front and rear directions on the two mounting seat mounting rods 28.

[0061] The driving wheel 29 is rotatably mounted in the driving wheel mounting seat 27 and its axis is along the front-rear direction.

[0062] The driving wheel shaft 30 is fixedly mounted on the axis of the driving wheel 29 .

[0063] The transmission gear 31 is connected to the rear end of the driving wheel shaft 30 .

[0064] The driving wheel motor 33 is mounted and fixed on the rear side of the driving wheel 29 .

[0065] The driving wheel motor gear 35 is mounted and fixed on the rotating shaft (not shown) of the driving wheel motor 33 and meshes with the transmission gear 31 .

[0066] The driving wheel motor 33 is started, and its rotating shaft (not shown) rotates to drive the driving wheel motor gear 35 to rotate. The driving wheel motor gear 35 drives the transmission gear 31 to rotate, and drives the driving wheel shaft 30 and the driving wheel 29 to rotate synchronously.

[0067] When it is necessary to convey the metal wire 888, first start the driven wheel push-pull cylinder 23, move the driven wheel mounting base 19 and the driven wheel 21 in the left and right directions, and when the distance between the driven wheel 21 and the driving wheel 29 is appropriately sufficient to clamp the metal wire 888 therebetween, stop the driven wheel push-pull cylinder 23, and then start the driving wheel motor 33, the driving wheel 29 rotates, and the metal wire 888 is conveyed by the friction between the driving wheel 29, the driven wheel 21 and the metal wire 888.

[0068] The driven fixing block 37 and the active fixing block 39 are respectively mounted and fixed in the driven fixing groove 1522 of the fixing frame top plate 152 of the driven wheel mounting seat fixing frame 15 and the active fixing groove 2722 of the mounting seat top block 272 of the driving wheel mounting seat 27 .

[0069] The front and rear push-pull rods 41 are movably connected to the top surfaces of the driven fixing block 37 and the active fixing block 39 , and the driven fixing block 37 and the active fixing block 39 are movably connected to the middle and right ends of the bottom surfaces of the front and rear push-pull rods 41 , respectively.

[0070] The front and rear push-pull rod connecting block 43 is movably connected to the left end of the top surface of the front and rear push-pull rod 41 .

[0071] The front and rear push-pull rod connection seat 45 is installed and fixed on the front and rear push-pull rod connection block 43 .

[0072] The front end of the front and rear push-pull cylinder connecting block 47 is connected to the front and rear push-pull rod connecting seat 45 , and the rear end is connected to the piston rod 492 of the front and rear push-pull cylinder 49 .

[0073] When the metal wire 888 encounters an obstacle and cannot continue to be transmitted downward, the front and rear push-pull cylinder 49 is started, and its piston rod 492 is extended and retracted in the front and rear direction, driving the front and rear push-pull cylinder connecting block 47, the front and rear push-pull rod connecting seat 45 and the front and rear push-pull rod connecting block 43 to move in the front and rear direction. Because the front and rear push-pull rod connecting block 43, the driven fixed block 37 and the active fixed block 39 are all movably connected to the front and rear push-pull rod 41 and the driven wheel mounting seat fixing frame 15 and the active wheel mounting seat 27 can move in the front and rear direction, the front and rear push-pull rod connecting block 43 that moves forward and backward pushes the front and rear push-pull rod 41 to move. The driven fixed block 37 and the active fixed block 39 located at different positions of the front and rear push-pull rods 41 move in the front-rear direction with different amplitudes, thereby driving the driven wheel mounting seat fixing frame 15 and the active wheel mounting seat 27 to move in the front-rear direction with different amplitudes, thereby driving the active wheel 29 and the driven wheel 21 to move in the front-rear direction with different amplitudes. At this time, a friction force is applied to the vertical direction of the metal wire 888 (i.e., the direction perpendicular to the length direction), and the metal wire 888 rotates, so that the metal wire 888 can adjust its angle to overcome obstacles and continue to be transmitted downward smoothly.

[0074] The utility model has the following beneficial effects: the metal wire rotating mechanism of the utility model can make the driving wheel 29 and the driven wheel 21 move in the front-rear direction with different amplitudes, so that the metal wire 888 clamped therein rotates, thereby overcoming the obstacles encountered when the metal wire 888 is transmitted downward, making the downward transmission of the metal wire 888 smoother and unobstructed, with reliable production quality and high work efficiency.

[0075] In another embodiment, the positions of the driven wheel 21 and the driving wheel 29 are interchanged, that is, the driven wheel 21 is on the right side, the driving wheel 29 is on the left side, and the driven wheel push-pull cylinder 23 is moved to the right side;

[0076] The driving wheel mounting seat 27 is changed to be installed on the left side of the driven wheel mounting seat 19;

[0077] The driven fixing block 37 and the active fixing block 39 are movably connected to the middle part and the left end of the front and rear push-pull rod 41 respectively, and the front and rear push-pull rod connecting block 43 is movably connected to the right end of the front and rear push-pull rod 41;

[0078] The right end of the connecting block 25 is connected to the piston rod of the driven wheel push-pull cylinder 23, and the left end is connected to the driven wheel mounting seat 19. The driven wheel push-pull cylinder 23 drives the driven wheel mounting seat 19 and the driven wheel 21 to move in the left and right directions.

[0079] After the above improvements, the above technical problems can also be solved and the above technical effects can be obtained.

Claims

1. A wire rotating mechanism, characterized in that: It comprises a driven wheel mounting seat (19) capable of moving in the front-rear direction, a driven wheel (21), a driving wheel mounting seat (27) mounted on the right side of the driven wheel mounting seat (19) and capable of moving in the front-rear direction, a driving wheel (29), a driven fixing block (37), an active fixing block (39), front and rear push-pull rods (41), front and rear push-pull rod connecting blocks (43), front and rear push-pull rod connecting seats (45), and front and rear push-pull cylinders (49); The driven wheel (21) is rotatably mounted in the driven wheel mounting seat (19) and its axis is along the front-rear direction; The driving wheel (29) is rotatably mounted in the driving wheel mounting seat (27) and its axis is along the front-rear direction; The driven fixing block (37) and the driving fixing block (39) are respectively directly or indirectly mounted and fixed on the driven wheel mounting seat (19) and the driving wheel mounting seat (27); The driven fixing block (37) and the active fixing block (39) are movably connected to the middle part and the right end of the front and rear push-pull rods (41) respectively; The front and rear push-pull rod connecting block (43) is movably connected to the left end of the front and rear push-pull rod (41); The front and rear push-pull rod connection seat (45) is installed and fixed on the front and rear push-pull rod connection block (43); The piston rod (492) of the front and rear push-pull cylinder (49) is directly or indirectly connected to the front and rear push-pull rod connecting seat (45).

2. The wire rotating mechanism according to claim 1, characterized in that: The metal wire rotating mechanism also includes a front and rear push-pull cylinder connecting block (47), a front end of which is connected to the front and rear push-pull rod connecting seat (45), and a rear end of which is connected to the piston rod (492) of the front and rear push-pull cylinder (49).

3. The wire rotating mechanism according to claim 1, characterized in that: The metal wire rotating mechanism also includes a mounting base plate (11), a mounting cover (13), a driven wheel mounting seat fixing frame (15), a plurality of fixing frame mounting rods (17) fixed in the mounting cover (13) along the front-rear direction, and a plurality of mounting seat mounting rods (28) fixed in the mounting cover (13) along the front-rear direction. The mounting cover (13) is mounted and fixed on the top surface of the mounting base plate (11); The driven wheel mounting seat fixing frame (15) comprises a fixing frame top plate (152), and the fixing frame top plate (152) is provided with a plurality of fixing frame through holes (1524) extending from the front side surface to the rear side surface along the front-to-back direction; The front and rear ends of the plurality of fixing frame mounting rods (17) are fixedly mounted on the mounting cover (13), and the middle portions are inserted into the plurality of fixing frame through holes (1524), so that the driven wheel mounting seat fixing frame (15) is mounted on the left side of the mounting cover (13) and can be moved along the front-rear direction on the plurality of fixing frame mounting rods (17); The driven wheel mounting seat (19) is mounted below the driven wheel mounting seat fixing frame (15), so that the driven wheel mounting seat (19) can move in the front-rear direction; The driving wheel mounting seat (27) comprises a mounting seat top block (272), and the mounting seat top block (272) is provided with a plurality of mounting seat through holes (2724) extending from the front side to the rear side along the front-to-back direction; The front and rear ends of the plurality of mounting seat mounting rods (28) are fixedly mounted on the mounting cover (13), and the middle portions are inserted into the plurality of mounting seat through holes (2724), so that the driving wheel mounting seat (27) is mounted on the right side of the mounting cover (13) and can move along the front-rear direction on the plurality of mounting seat mounting rods (28).

4. The wire rotating mechanism according to claim 3, characterized in that: A driven fixing groove (1522) is provided on the top surface of the fixing frame top plate (152) along the left-right direction, and an active fixing groove (2722) is provided on the top surface of the mounting seat top block (272) along the left-right direction. The driven fixing block (37) and the active fixing block (39) are respectively installed and fixed in the driven fixing groove (1522) and the active fixing groove (2722).

5. The wire rotating mechanism according to claim 1 or 3, characterized in that: The metal wire rotating mechanism also includes a driven wheel push-pull cylinder (23), a connecting block (25), a driving wheel rotating shaft (30), a transmission gear (31), a driving wheel motor (33) and a driving wheel motor gear (35); The left end of the connecting block (25) is connected to the piston rod of the driven wheel push-pull cylinder (23), and the right end is connected to the driven wheel mounting seat (19). The driven wheel push-pull cylinder (23) drives the driven wheel mounting seat (19) and the driven wheel (21) to move in the left and right directions. The driving wheel shaft (30) is fixedly mounted on the axis of the driving wheel (29), the transmission gear (31) is connected to the rear end of the driving wheel shaft (30), the driving wheel motor (33) is fixedly mounted on the rear side of the driving wheel (29), the driving wheel motor gear (35) is fixedly mounted on the rotating shaft of the driving wheel motor (33) and meshes with the transmission gear (31), and the driving wheel motor (33) drives the driving wheel (29) to rotate synchronously.

6. A wire rotating mechanism, characterized in that: It comprises a driven wheel mounting seat (19) capable of moving in the front-rear direction, a driven wheel (21), a driving wheel mounting seat (27) mounted on the left side of the driven wheel mounting seat (19) and capable of moving in the front-rear direction, a driving wheel (29), a driven fixing block (37), an active fixing block (39), front and rear push-pull rods (41), front and rear push-pull rod connecting blocks (43), front and rear push-pull rod connecting seats (45), and front and rear push-pull cylinders (49); The driven wheel (21) is rotatably mounted in the driven wheel mounting seat (19) and its axis is along the front-rear direction; The driving wheel (29) is rotatably mounted in the driving wheel mounting seat (27) and its axis is along the front-rear direction; The driven fixing block (37) and the driving fixing block (39) are respectively directly or indirectly mounted and fixed on the driven wheel mounting seat (19) and the driving wheel mounting seat (27); The driven fixing block (37) and the active fixing block (39) are movably connected to the middle part and the left end of the front and rear push-pull rods (41) respectively; The front and rear push-pull rod connecting block (43) is movably connected to the right end of the front and rear push-pull rod (41); The front and rear push-pull rod connection seat (45) is installed and fixed on the front and rear push-pull rod connection block (43); The piston rod (492) of the front and rear push-pull cylinder (49) is directly or indirectly connected to the front and rear push-pull rod connecting seat (45).

7. The wire rotating mechanism according to claim 6, characterized in that: The metal wire rotating mechanism also includes a front and rear push-pull cylinder connecting block (47), a front end of which is connected to the front and rear push-pull rod connecting seat (45), and a rear end of which is connected to the piston rod (492) of the front and rear push-pull cylinder (49).

8. The wire rotating mechanism according to claim 6, characterized in that: The metal wire rotating mechanism also includes a mounting base plate (11), a mounting cover (13), a driven wheel mounting seat fixing frame (15), a plurality of fixing frame mounting rods (17) fixed in the mounting cover (13) along the front-rear direction, and a plurality of mounting seat mounting rods (28) fixed in the mounting cover (13) along the front-rear direction. The mounting cover (13) is mounted and fixed on the top surface of the mounting base plate (11); The driven wheel mounting seat fixing frame (15) comprises a fixing frame top plate (152), and the fixing frame top plate (152) is provided with a plurality of fixing frame through holes (1524) extending from the front side surface to the rear side surface along the front-to-back direction; The front and rear ends of the plurality of fixing frame mounting rods (17) are fixedly mounted on the mounting cover (13), and the middle portions are inserted into the plurality of fixing frame through holes (1524), so that the driven wheel mounting seat fixing frame (15) is mounted on the right side of the mounting cover (13) and can be moved along the front-rear direction on the plurality of fixing frame mounting rods (17); The driven wheel mounting seat (19) is mounted below the driven wheel mounting seat fixing frame (15), so that the driven wheel mounting seat (19) can move in the front-rear direction; The driving wheel mounting seat (27) comprises a mounting seat top block (272), and the mounting seat top block (272) is provided with a plurality of mounting seat through holes (2724) extending from the front side to the rear side along the front-to-back direction; The front and rear ends of the plurality of mounting seat mounting rods (28) are fixedly mounted on the mounting cover (13), and the middle portions are inserted into the plurality of mounting seat through holes (2724), so that the driving wheel mounting seat (27) is mounted on the left side of the mounting cover (13) and can move along the front-rear direction on the plurality of mounting seat mounting rods (28).

9. The wire rotating mechanism according to claim 8, characterized in that: A driven fixing groove (1522) is provided on the top surface of the fixing frame top plate (152) along the left-right direction, and an active fixing groove (2722) is provided on the top surface of the mounting seat top block (272) along the left-right direction. The driven fixing block (37) and the active fixing block (39) are respectively installed and fixed in the driven fixing groove (1522) and the active fixing groove (2722).

10. The wire rotating mechanism according to claim 6 or 8, characterized in that: The metal wire rotating mechanism also includes a driven wheel push-pull cylinder (23), a connecting block (25), a driving wheel rotating shaft (30), a transmission gear (31), a driving wheel motor (33) and a driving wheel motor gear (35); The right end of the connecting block (25) is connected to the piston rod of the driven wheel push-pull cylinder (23), and the left end is connected to the driven wheel mounting seat (19). The driven wheel push-pull cylinder (23) drives the driven wheel mounting seat (19) and the driven wheel (21) to move in the left-right direction. The driving wheel shaft (30) is fixedly mounted on the axis of the driving wheel (29), the transmission gear (31) is connected to the rear end of the driving wheel shaft (30), the driving wheel motor (33) is fixedly mounted on the rear side of the driving wheel (29), the driving wheel motor gear (35) is fixedly mounted on the rotating shaft of the driving wheel motor (33) and meshes with the transmission gear (31), and the driving wheel motor (33) drives the driving wheel (29) to rotate synchronously.

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