A pay-off device with a wire pulling mechanism

Abstract

The present application relates to the technical field of wire releasing device with wire pushing mechanism, in particular to a wire releasing device with wire pushing mechanism, comprising a first supporting mechanism, a driving wire releasing mechanism, a second supporting mechanism, a third supporting mechanism, a wire bar mechanism and a wire pushing mechanism, the driving wire releasing mechanism has a wire releasing motor, a rotating shaft, a connecting frame and a guide wheel, the wire releasing motor is fixedly connected with the first supporting mechanism, one end of the rotating shaft is connected with the first supporting mechanism in a rotating manner, the connecting frame is fixed on the outer wall of the rotating shaft, the wire bar mechanism has a wire releasing frame, the wire pushing mechanism is fixedly connected with the wire releasing frame and has a wire pushing block, through the cooperation of the driving wire releasing mechanism and the wire bar mechanism, the synchronous wire releasing of the wire bar is realized, the wire bar is conveniently hoisted and placed on the feeding device, the wire pushing mechanism is additionally arranged, the wire bar can move along with the wire drawing speed, the traction of the wire bar is more stable, the deformation of the wire bar caused by excessive traction is reduced, and the wire drawing quality of the wire drawing machine is ensured.

Description

Technical Field

[0001] This invention relates to the field of wire feeding equipment with a wire-pulling mechanism, and more particularly to a wire feeding device with a wire-pulling mechanism. Background Technology

[0002] Aluminum ash is the slag and skimmed residue that floats on the surface of molten aluminum during the metallurgical melting process of electrolytic aluminum, cast aluminum, and recycled aluminum, including the residue remaining after subsequent processing such as ash frying and ball milling.

[0003] In the metal processing industry, wire rod is a widely used material applied across various sectors. Currently, secondary processing of wire rod to improve its performance is a common and effective approach, which inevitably involves processes such as uncoiling and recoiling.

[0004] However, due to the different products being processed, the diameter of the wire rod also varies. For wire rods with a diameter greater than 10mm, a passive wire feeding method can be used to achieve the wire feeding purpose. This is mainly achieved by using the spiral forming rigidity of the wire rod itself to drive the wire feeding frame to rotate. However, when the wire rod diameter is less than 10mm, this wire feeding method obviously cannot meet the production requirements, as the rotational force of the wire rod itself is insufficient to drive the shaft to rotate.

[0005] To address the aforementioned technical problems, a patent application filed on August 24, 2022, with application number CN202211044944.X, discloses a wire feeding device and method for a wire drawing machine. While this patent solves the problem of wire feeding, the feeding device itself lacks the ability to drive the wire to move. During the traction process, the wire's own weight keeps it in its initial position. When the wire is far from the traction position, the traction portion may experience excessive stretching, leading to a decrease in wire performance. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a wire feeding device with a wire pulling mechanism to solve the problem that during the traction process, the weight of the wire keeps it in the initial position, and when the wire is far from the traction position, the traction part of the wire may be overstretched, resulting in a decrease in wire performance.

[0007] To achieve the above objectives, the present invention provides a wire feeding device with a wire-picking mechanism, comprising: a first support mechanism; an active wire feeding mechanism having a wire feeding motor, a rotating shaft, a connecting frame, and a guide wheel, wherein the wire feeding motor is fixedly connected to the first support mechanism, one end of the rotating shaft is rotatably connected to the first support mechanism, the connecting frame is fixed to the outer wall of the rotating shaft, the guide wheel is rotatably connected to the connecting frame, and the output shaft of the wire feeding motor is drivenly connected to the rotating shaft; a second support mechanism having a second support end capable of vertical movement; a third support mechanism having a third support end capable of movement along the centerline of the rotating shaft; a wire rod mechanism having a wire feeding frame for holding wire rods, the other end of the rotating shaft being rotatably connected to one end of the wire feeding frame, the second support end being fixedly connected to the lower end of the wire feeding frame by insertion, and the third support end being fixedly connected to the other end of the wire feeding frame by insertion; and a wire-picking mechanism fixedly connected to the wire feeding frame, having a wire-picking block capable of movement along the length direction of the wire feeding frame.

[0008] In an optional example, the wire-picking mechanism includes a wire-picking housing fixedly connected to the wire-feeding frame. A wire-picking guide rail assembly, arranged along the length of the wire-feeding frame, is fixed inside the wire-picking housing. A wire-picking platform is slidably mounted inside the wire-picking guide rail assembly. A power component is installed inside the wire-picking housing to drive the wire-picking platform to reciprocate along the wire-picking guide rail assembly. A wire-picking shaft is fixedly mounted on the wire-picking platform by rotation. A wire-picking block is fitted and fixedly mounted on the outer wall of the wire-picking shaft. The wire-picking block has a wire-picking end face that abuts against the wire rod. A limiting block is fixed on the wire-picking platform to restrict the maximum rotation angle of the wire-picking block. A reset component is fixed on the wire-picking platform. The reset component is drivenly connected to the wire-picking block and is used to drive the wire-picking end face to be arranged vertically.

[0009] In an optional example, the wire-picking housing has a mounting chamber, and the top of the wire-picking housing has an upper through slot extending into the mounting chamber. The wire-picking guide rail assembly includes two sets of guide rail units symmetrically arranged within the mounting chamber. Each guide rail unit includes an upper guide rail and a lower guide rail fixedly connected to the wire-picking housing. The upper guide rail has an upper guide groove at its end facing the lower guide rail, and the lower guide rail has a lower guide groove at its end facing the upper guide rail. The upper and lower guide grooves combine to form a sliding guide groove along the length of the wire-feeding frame. The bottom of the wire-picking table is rotatably mounted with a sliding telescopic rod and two sets of symmetrically arranged sliding components. The sliding components are slidably installed within the corresponding sliding guide grooves. The sliding assembly includes two sets of sliding units arranged in the same direction and a connecting rod connecting the two sets of sliding units. A linkage rod is fixed between the two connecting rods. The telescopic end of the sliding telescopic rod is rotatably fitted onto the outer wall of the linkage rod. The sliding unit includes a rotating arm and a sliding connecting plate. One end of the rotating arm is rotatably connected to the wire-drawing table, and the other end of the rotating arm is rotatably connected to the sliding connecting plate. The middle part of the rotating arm is connected to the connecting rod via a rotating shaft. A sliding rotating shaft is fixed on the sliding connecting plate along the width direction of the wire-feeding frame. A guide wheel is rotatably fitted onto the outer wall of the sliding rotating shaft, and the guide wheel is installed in a corresponding sliding guide groove.

[0010] In an optional example, the reset assembly includes a reset spring, a guide post, a reset gear, and a reset rack. The upper end of the wire-shifting platform has a wire-shifting groove extending through the wire-laying frame along its length. The reset rack is slidably mounted within the wire-shifting groove. A through hole is formed along the length of the reset rack. The guide post passes through the through hole and is fixed within the wire-shifting groove. The reset spring is fitted onto the outer wall of the guide post. One end of the reset spring abuts against the reset rack, and the other end abuts against the wire-shifting groove. The reset gear is fitted and fixed onto the outer wall of the wire-shifting shaft via a key connection, and the reset gear meshes with the reset rack.

[0011] In an optional example, the wire feeding device with a wire-pulling mechanism further includes a power transmission component, which includes a fixed conductive strip and two sets of sliding conductors. The fixed conductive strip is fixedly connected to an upper guide rail and has a conductive flow channel arranged along the length of the wire feeding frame. One end of the sliding conductor is slidably inserted into the conductive flow channel and electrically connected to the sliding conductor. The sliding telescopic rod is electrically driven, and the other end of the sliding conductor is electrically connected to the sliding telescopic rod.

[0012] In an optional example, the fixed conductive strip includes an insulating mounting strip. The upper end of the insulating mounting strip has an insulating top groove along the length of the wire feeding frame. Two symmetrically arranged positive conductive mounting grooves and negative conductive mounting grooves are formed in the insulating top groove. A positive conductive fixing piece arranged along the length of the wire feeding frame is inserted and fixed in the positive conductive mounting groove. A negative conductive fixing piece arranged along the length of the wire feeding frame is inserted and fixed in the negative conductive mounting groove. The positive conductive fixing piece has a positive sliding groove, and the negative conductive fixing piece has a negative sliding groove. The positive and negative sliding grooves combine to form a conductive flow channel.

[0013] In an optional example, the sliding conductor includes an upper base fixedly connected to a dialing station. A connecting conductive rod is rotatably mounted on the upper base. The connecting conductive rod has a telescopic sliding conductive rod. A lower base is rotatably mounted on the sliding conductive rod. The lower base is slidably mounted in an insulating top groove. A conductive slider and an insulating guide slider are fixed on the lower base. The conductive slider of one sliding conductor is inserted into the positive electrode groove, and the conductive slider of the other sliding conductor is inserted into the negative electrode groove. The insulating guide slider of one sliding conductor is inserted into the negative electrode groove, and the insulating guide slider of the other sliding conductor is inserted into the positive electrode groove. The upper base, the connecting conductive rod, the sliding conductive rod, the conductive slider, and the conductive flow channel are electrically connected.

[0014] In one optional example, the linkage conductive rod includes an insulating rod body, the inner wall of which is fixed with a conductive tube. A conductive slider is fixed to the upper end of the sliding conductive rod via bolts. A limiting flange is fixed to the lower end of the sliding conductive rod. The lower base includes a lower seat and a lower cover. A lower receiving groove is formed at the upper end of the lower seat. The lower part of the sliding conductive rod is inserted into the lower receiving groove. The lower end of the lower cover abuts against the sliding conductive rod and fixes the sliding conductive rod within the lower receiving groove. The upper end of the conduit is provided with a conductive head extending from the insulating rod body. A conductive connecting piece is inserted and fixed on the upper base. The conductive connecting piece is provided with an arc-shaped sliding groove. The conductive head is slidably inserted into the arc-shaped sliding groove. The end of the conductive connecting piece is electrically connected to the sliding telescopic rod through a circuit. The side wall of the lower base body is provided with a conductive mounting groove that communicates with the lower receiving groove. The conductive sliding piece is slidably inserted into the conductive mounting groove. The conductive sliding piece is provided with a conductive insertion hole. The sliding conductive rod is inserted and fixed in the conductive insertion hole.

[0015] In an optional example, the upper end of the insulating rod is fixed with an insulating upper cover by bolt connection, the upper end of the insulating rod is fixed with an insulating lower cover by bolt connection, and the upper end of the lower receiving groove is provided with a lower mounting groove that matches the limiting flange.

[0016] In an optional example, the limiting block is equipped with a first position detector for detecting the position of the pull-out block, and the first position detector is electrically connected to the conductive connecting piece via a circuit.

[0017] The beneficial effects of this invention are as follows: by cooperating with the active wire feeding mechanism and the wire rod mechanism, synchronous wire feeding of the wire rod is achieved. Furthermore, by switching between the second support mechanism and the third support mechanism, the wire feeding frame can be freely supported, facilitating the hoisting and placement of the wire rod in the feeding process, reducing the downtime of the wire drawing machine, and improving the processing efficiency of the wire drawing machine. At the same time, the added wire guiding mechanism allows the wire rod to move with the wire drawing speed, making the traction force of the wire rod more stable, reducing the deformation caused by excessive traction of the wire rod, and ensuring the wire drawing quality of the wire drawing machine. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of an embodiment of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the first support mechanism in an embodiment of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the second support mechanism in an embodiment of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the wire feeding frame in an embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the wire-pulling mechanism in an embodiment of the present invention;

[0025] Figure 7 This is an exploded view of the wire-pulling mechanism in an embodiment of the present invention;

[0026] Figure 8 for Figure 7 Enlarged schematic diagram of the I-structure;

[0027] Figure 9 This is an exploded view of the wire-pulling mechanism in an embodiment of the present invention;

[0028] Figure 10 This is a three-dimensional structural diagram of the dialing station in an embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the connection relationship of the power transmission components in an embodiment of the present invention;

[0030] Figure 12 for Figure 11 Enlarged schematic diagram of the I-structure;

[0031] Figure 13 This is a schematic diagram of the structure for fixing the conductive strip in an embodiment of the present invention;

[0032] Figure 14 This is an exploded view of the power transmission component in an embodiment of the present invention;

[0033] Figure 15 This is an exploded view of the connecting conductive rod in an embodiment of the present invention;

[0034] Figure 16 This is a three-dimensional structural diagram of the conductive tube in an embodiment of the present invention.

[0035] The diagram is labeled as follows: 1. First support mechanism; 11. First support base; 12. Support platform; 13. Connecting bearing; 2. Active wire feeding mechanism; 21. Wire feeding motor; 22. Rotating shaft; 23. Connecting frame; 24. Guide wheel; 3. Second support mechanism; 31. Second support end; 32. Second support base; 33. Second sliding bracket; 34. Second support cylinder; 311. Second insertion post; 4. Third support mechanism; 41. Third support end; 42. Third support base; 43. Third sliding bracket; 44. Third support cylinder; 411. Third insertion post; 5. Wire coiling mechanism; 51. Wire feeding frame; 511. Main support post; 512. Auxiliary support. Column; 513, Left support; 514, Right support; 515, Second contact platform; 516, Second insertion slot; 517, Third contact platform; 518, Third insertion slot; 6, Wire-picking mechanism; 61, Wire-picking block; 6101, Wire-picking end face; 62, Wire-picking housing; 621, Upper through slot; 63, Wire-picking guide rail assembly; 631, Upper guide rail; 6311, Upper guide slot; 6312, Power supply slot; 632, Lower guide rail; 6321, Lower guide slot; 64, Wire-picking platform; 641, Wire-picking through slot; 642, Wire-picking shaft; 65, Power assembly; 651, Drive sprocket; 652, Driven sprocket; 653, Power motor; 66, Limit 67. Position block; 671. Reset assembly; 672. Reset spring; 673. Guide post; 674. Reset gear; 675. Reset rack; 676. Through hole; 68. Sliding telescopic rod; 69. Sliding assembly; 691. Connecting rod; 692. Linking rod; 693. Sliding connecting plate; 694. Sliding shaft; 695. Guide wheel; 696. Rotating arm; 7. Power transmission assembly; 701. Conductive channel; 71. Fixed conductive strip; 711. Insulating mounting strip; 7111. Insulating top groove; 7112. Positive conductive mounting groove; 7113. Negative conductive mounting groove; 72. Sliding conductor; 721. Upper base; 722. Linking guide 7221. Pole; 7222. Sliding conductive rod; 7222. Insulating rod body; 7223. Conductive tube; 72231. Conductive head; 72241. Conductive slider; 72242. Limiting flange; 7225. Insulating upper cover; 7226. Insulating lower cover; 723. Lower base; 7231. Lower seat; 7232. Lower cover; 7233. Lower receiving groove; 724. Conductive slider; 725. Insulating guide slider; 726. Conductive connecting piece; 7261. Arc-shaped sliding groove; 73. Positive conductive fixing piece; 731. Positive sliding groove; 74. Negative conductive fixing piece; 741. Negative sliding groove; 75. Fixing strip; 8. First position detector. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0037] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0038] In one embodiment, please refer to Figures 1 to 5 As shown, the present invention provides a wire feeding device with a wire feeding mechanism, comprising a first support mechanism 1, an active wire feeding mechanism 2, a second support mechanism 3, a third support mechanism 4, a wire coiling mechanism 5, and a wire feeding mechanism 6.

[0039] The first support mechanism 1 includes a first support base 11, a support platform 12 is fixed at the upper end of the first support base 11, and a connecting bearing 13 is fixedly installed on the support platform 12.

[0040] The active wire feeding mechanism 2 includes a wire feeding motor 21, a rotating shaft 22, a connecting frame 23, and a guide wheel 24. The wire feeding motor 21 is fixedly connected to the first support mechanism 1. One end of the rotating shaft 22 is connected to the first support mechanism 1 by rotation. The connecting frame 23 is fixed to the outer wall of the rotating shaft 22 by bolts. The guide wheel 24 is connected to the connecting frame 23 by bearings. The output shaft of the wire feeding motor 21 is driven by the rotating shaft 22. The wire feeding motor 21 is fixed to the upper end of the support platform 12 by bolts. The rotating shaft 22 is connected to the inner ring of the connecting bearing 13 by a key. One end of the connecting shaft extends out of the support platform 12 and is fitted with a driven gear ring by a key. A drive gear is fixed on the output shaft of the wire feeding motor 21, and the drive gear is connected to the driven gear ring by chain drive.

[0041] The second support mechanism 3 has a second support end 31 capable of vertical movement. The second support mechanism 3 also includes a second support base 32, on which a second sliding bracket 33 is mounted vertically and slidably. A second support cylinder 34 is fixed to the second support base 32, and the telescopic end of the second support cylinder 34 is fixedly connected to the second sliding bracket 33. The second support end 31 includes a second support block, which is fixedly connected to the second sliding bracket 33 by bolts. A second insertion post 311 is provided at the upper end of the second support block.

[0042] The third support mechanism 4 has a third support end 41 that can move along the center line of the rotation axis 22. The third support mechanism 4 also includes a third support base 42, on which a third sliding bracket 43 is slidably mounted along its length. A third support cylinder 44 is fixedly mounted on the third support base 42, and the telescopic end of the third support cylinder 44 is fixedly connected to the third sliding bracket 43. The third support end 41 includes a third support block, which is fixedly connected to the third sliding bracket 43 by bolts. A third insertion post 411 is provided at the upper end of the third support block.

[0043] The wire rod mechanism 5 has a wire feeding frame 51 for holding wire rods. The other end of the rotating shaft 22 is connected to one end of the wire feeding frame 51 via a bearing connection. The second support end 31 can be fixedly connected to the lower end of the wire feeding frame 51 via a plug-in connection, and the third support end 41 can be fixedly connected to the other end of the wire feeding frame 51 via a plug-in connection. The wire feeding frame 51 has two main support columns 511, two auxiliary support columns 512, a left bracket 513, and a right bracket 514. The left bracket 513 and the right bracket 514 are fixedly connected to the two ends of the main support columns 511 and the auxiliary support columns 512, respectively. The center line of the main support column 511 is parallel to the horizontal plane, and the center line of the auxiliary support column 512 forms a certain angle with the horizontal plane. The distance between the auxiliary support column 512 and the main support column 511 at the end closer to the rotating shaft 22 is greater than the distance between the auxiliary support column 512 and the main support column 511 at the end farther away from the rotating shaft 22.

[0044] The lower end of the wire feeding frame 51 is provided with a second contact platform 515, and the second contact platform 515 is provided with a second insertion slot 516 that matches the second insertion post 311. The end of the wire feeding frame 51 facing the third support block is provided with a third contact platform 517, and the third contact platform 517 is provided with a third insertion slot 518 that matches the third insertion post 411.

[0045] The wire-picking mechanism 6 is fixedly connected to the wire-feeding frame 51 and has a wire-picking block 61 that can move along the length of the wire-feeding frame 51. The wire-picking block 61 moves along the length of the wire-feeding frame 51, causing the wire rod placed on the wire-feeding frame 51 to move toward one end of the rotating shaft 22.

[0046] Specifically, when steel wire rod needs to be placed, the second support end 31 is fixed against the wire feeding frame 51, and the third support end 41 moves away from the wire feeding frame 51, so that there is a certain gap between the third support end 41 and the wire feeding frame 51. The steel wire rod is hoisted and moved from the gap to be fitted onto the wire feeding frame 51. When the steel wire rod is fed, the second support end 31 moves downward until there is a certain gap between the second support end 31 and the wire feeding frame 51. The third support end 41 moves towards the wire feeding frame 51, so that the third support end 41 is fixedly connected to the wire feeding frame 51. One end of the wire rod passes through the gap between the second support end 31 and the wire feeding frame 51 and is connected to the wire drawing machine through the active wire feeding mechanism 2. At the same time, the wire pulling mechanism 6 works, and the wire pulling block 61 pushes the wire rod to move, so that the wire rod moves according to the wire drawing speed.

[0047] In summary, this example achieves synchronous wire feeding of the wire rod through the cooperation of the active wire feeding mechanism 2 and the wire rod mechanism 5. Furthermore, by switching between the second support mechanism 3 and the third support mechanism 4, the wire feeding frame 51 can be freely supported, facilitating the placement and feeding of the wire rod, reducing the downtime of the wire drawing machine, and improving the processing efficiency of the wire drawing machine. At the same time, the added wire pulling mechanism 6 allows the wire rod to move with the wire drawing speed, making the traction force of the wire rod more stable, reducing the deformation caused by excessive traction of the wire rod, and ensuring the wire drawing quality of the wire drawing machine.

[0048] As an optional example, please refer to Figures 1 to 8As shown, to reduce the installation difficulty of the wire-picking structure, the wire-picking mechanism 6 includes a wire-picking housing 62 fixedly connected to the wire-feeding frame 51 by bolts. A wire-picking guide rail assembly 63 is fixed inside the wire-picking housing 62 and arranged along the length of the wire-feeding frame 51. A wire-picking platform 64 is slidably mounted inside the wire-picking guide rail assembly 63. A power assembly 65 is installed inside the wire-picking housing 62. The power assembly 65 is used to drive the wire-picking platform 64 to reciprocate along the wire-picking guide rail assembly 63. A wire-picking shaft 642 is fixedly mounted on the wire-picking platform 64 by bearing connection. A wire-picking block 61 is fitted and fixed to the outer wall of the wire-picking shaft 642 by key connection. The wire-picking block 61 has a wire-picking end face 6101 that abuts against the wire rod. A limit block 66 is fixed on the wire-picking platform 64 to limit the maximum rotation angle of the wire-picking block 61. A reset assembly 67 is fixed on the wire-picking platform 64. The reset assembly 67 is drivenly connected to the wire-picking block 61 and is used to drive the wire-picking end face 6101 to be arranged vertically. The power assembly 65 includes a drive chain shaft, a driven chain shaft, a drive sprocket 651, a driven sprocket 652, and a power motor 653. The drive chain shaft and the driven chain shaft are installed in the wire-picking housing 62 by means of bearing connection. A transmission chain is installed between the drive sprocket 651 and the driven sprocket 652. The wire-picking table 64 is connected to the transmission chain by means of bolt connection. The power motor 653 is fixedly connected to the wire-picking housing 62 by means of bolt connection. The output shaft of the power motor 653 is fixedly connected to the drive chain shaft.

[0049] Specifically, in this example, the wire-picking housing 62 accommodates other structures of the wire-picking mechanism 6, reducing the difficulty of disassembling and assembling the wire-picking mechanism 6, facilitating the overall disassembly and assembly of the wire-picking mechanism 6, and improving the maintenance efficiency of the wire-picking mechanism 6. Furthermore, the wire-picking block 61 is installed by a rotating connection, which prevents the wire-picking block 61 from driving the wire bar to move away from the active wire-discharging mechanism 2 when adjusting its position. At the same time, a limit block 66 is added to restrict the wire-picking block 61, ensuring that the wire-picking end face 6101 can contact the wire bar.

[0050] As an optional example, please refer to Figures 1 to 9As shown, during the hoisting and placement of wire rods, impacts can easily occur to the wire feeding device, causing deformation of structures such as the wire feeding frame 51. To further improve the service life of the wire feeding device, the wire feeding housing 62 has an installation chamber. The top of the wire feeding housing 62 has an upper through slot 621 extending into the installation chamber. The wire feeding guide rail assembly 63 includes two sets of guide rail units symmetrically arranged in the installation chamber. Each guide rail unit includes an upper guide rail 631 and a lower guide rail 632 fixedly connected to the wire feeding housing 62 by bolts. The upper guide rail 631 has an upper guide groove 6311 at the end facing the lower guide rail 632, and the lower guide rail 632 has a lower guide groove 6321 at the end facing the upper guide rail 631. The upper guide groove 6311 and the lower guide groove 6321 combine to form a sliding guide groove arranged along the length of the wire feeding frame 51. The bottom of the wire feeding table 64 is equipped with a sliding telescopic rod 68 connected to the two sets of symmetrically arranged guide rails via a pivot. The sliding assembly 69 is installed in the corresponding sliding guide groove by sliding. The sliding assembly 69 includes two sets of sliding units arranged in the same direction and a connecting rod 691 connecting the two sets of sliding units. A linkage rod 692 is fixed between the two connecting rods 691. The telescopic end of the sliding telescopic rod 68 is rotatably fitted onto the outer wall of the linkage rod 692. The sliding unit includes a rotating arm 696 and a sliding connecting plate 693. One end of the rotating arm 696 is connected to the wire-picking table 64 by a rotating shaft, and the other end of the rotating arm 696 is connected to the sliding connecting plate 693 by a rotating shaft. The middle part of the rotating arm 696 is connected to the connecting rod 691 by a rotating shaft. A sliding rotating shaft 694 is fixed on the sliding connecting plate 693 along the width direction of the wire-feeding frame 51 by stamping. A guide wheel 695 is fixed on the outer wall of the sliding rotating shaft 694 by a bearing connection. The guide wheel 695 is installed in the corresponding sliding guide groove. The four sets of sliding units are combined to form a parallelogram mechanism.

[0051] Specifically, this example adopts a combination design of upper guide rail 631 and lower guide rail 632, with a certain fitting clearance, which allows the upper guide rail 631 and lower guide rail 632 to slide the wire feeding table 64 under deformation, thereby improving the service life of wire feeding. Furthermore, the sliding telescopic rod 68 controls the wire feeding table 64 to be adjustable in height within a certain range, reducing the installation difficulty of the wire feeding mechanism 6. At the same time, when the wire feeding block 61 fails to move the wire rod, the working of the sliding telescopic rod 68 raises the height of the wire feeding block 61, increasing the working range of the feeding mechanism and ensuring the stability of wire feeding.

[0052] As an optional example, please refer to Figures 1 to 10As shown, to ensure the stability of wire rod feeding, the reset assembly 67 includes a reset spring 671, a guide post 672, a reset gear 673, and a reset rack 674. The upper end of the wire feeder 64 has a wire feed groove 641 extending through the wire feeder 64 along the length of the wire feeder 51. The reset rack 674 is slidably mounted in the wire feed groove 641. The reset rack 674 has a through hole 6741 along its length. The guide post 672 passes through the through hole 6741 and is fixed to the wire feed groove 641 by bolts. The reset spring 671 is fitted onto the outer wall of the guide post 672. One end of the reset spring 671 abuts against the reset rack 674, and the other end abuts against the wire feed groove 641. The reset gear 673 is fitted and fixed onto the outer wall of the wire feeder 642 by a key connection, and the reset gear 673 meshes with the reset rack 674. The wire-picking groove 641 is provided with a reset slide groove along the length of the wire-laying frame 51. The side wall of the reset rack 674 is provided with a reset slider. The reset slide groove has a connecting section that penetrates downward through the wire-picking table 64. The reset slider slides into the reset slide groove from the connecting section. The bottom of the wire-picking table 64 is provided with a sealing plate. The upper end of the sealing plate is provided with an upwardly extending sealing block. The sealing block can be inserted into the connecting section to prevent the reset slider from slipping off the connecting section.

[0053] Specifically, when the wire guide table 64 moves toward the active wire feeding mechanism 2, the limiting block 66 abuts against the wire guide block 61, allowing the wire guide end face 6101 to abut against the wire rod, thereby pushing the wire rod to move; when the wire guide table 64 moves away from the active wire feeding mechanism 2, the wire guide block 61 abuts against the wire rod, and the wire guide block 61 rotates away from the limiting block 66 under force, causing the wire guide shaft 642 to drive the reset gear 673 to rotate, and the reset gear 673 drives the reset rack 6 74. When the wire guide block 61 moves, the return spring 671 is compressed until it disengages from the wire rod. The return spring 671 pushes the return rack 674 to move towards the initial position. The return rack 674 drives the return gear 673 to rotate in the reset position. The return gear 673 drives the wire guide shaft 642 to rotate in the reset position. The wire guide shaft 642 drives the wire guide block 61 to rotate to the initial position, thus realizing the reset of the wire guide block. This prevents the wire guide block 61 from causing the wire rod to move in the opposite direction during the reset movement, ensuring the stability of the wire rod during feeding.

[0054] As an optional example, please refer to Figures 1 to 11As shown, due to the relatively long length of the wire feeding frame 51, the installation of power lines and other conduits is difficult. To facilitate power transmission, the wire feeding device with a wire-pulling mechanism also includes a power transmission component 7. The power transmission component 7 includes a fixed conductive strip 71 and two sets of sliding conductors 72. The fixed conductive strip 71 is fixedly connected to an upper guide rail 631. The fixed conductive strip 71 has a conductive flow channel 701 arranged along the length of the wire feeding frame 51. One end of the sliding conductor 72 is slidably inserted into the conductive flow channel 701 and electrically connected to the sliding conductor 72. The sliding telescopic rod 68 is electrically driven, and the other end of the sliding conductor 72 is electrically connected to the sliding telescopic rod 68 through a line. The electrically driven sliding telescopic rod 68 is beneficial for controlling the height of the wire-pulling table 64.

[0055] Specifically, this example achieves power transmission by adding power transmission component 7, avoiding the spread of wires, circuits and pipes, facilitating power transmission and improving the service life of the wire laying device.

[0056] As an optional example, please refer to Figures 1 to 13 As shown, to facilitate the assembly and disassembly of the power transmission component 7, the fixed conductive strip 71 includes an insulating mounting strip 711. A power groove 6312 is provided at the upper end of an upper guide rail 631. The insulating mounting strip 711 is fixed in the power groove 6312. An insulating top groove 7111 is provided at the upper end of the insulating mounting strip 711 along the length of the wire feeding frame 51. Two symmetrically arranged positive conductive mounting grooves 7112 and negative conductive mounting grooves 7113 are provided in the insulating top groove 7111. A positive conductive fixing piece 73 arranged along the length of the wire feeding frame 51 is inserted and fixed in the positive conductive mounting groove 7112. A negative conductive fixing piece 74 arranged along the length of the wire feeding frame 51 is inserted and fixed in the negative conductive mounting groove 7113. The positive conductive fixing piece 73 has a positive sliding groove 731, and the negative conductive fixing piece 74 has a negative sliding groove 741. The positive sliding groove 731 and the negative sliding groove 741 are combined to form a conductive flow channel 701. The bottom of the insulating top groove 7111 is fixed with a fixing strip 75. The side walls of the fixing strip 75 are respectively fixed to the lower part of the positive conductive fixing piece 73 and the negative conductive fixing piece 74. The positive conductive fixing piece 73 and the negative conductive fixing piece 74 are both made of conductive materials, such as copper sheets and copper alloys. The insulating mounting strip 711 and the fixing strip 75 are both made of insulating materials, such as insulating plastics.

[0057] Specifically, this example uses a three-part structure, namely, a fixed conductive strip 71, an insulating mounting strip 711, a positive conductive mounting groove 7112, and a negative conductive mounting groove 7113, to facilitate the assembly and disassembly of the power transmission assembly 7 and reduce the difficulty of assembling and disassembling the power transmission assembly 7.

[0058] As an optional example, please refer to Figures 1 to 16As shown, to achieve stable power transmission, the sliding conductor 72 includes an upper base 721 fixedly connected to the switch table 64 by bolts. A connecting conductive rod 722 is mounted on the upper base 721 via a pivot. The connecting conductive rod 722 has a telescopic sliding conductive rod 7221. A lower base 723 is mounted on the sliding conductive rod 7221 via a pivot. The lower base 723 is slidably installed in the insulating top groove 7111. A conductive slider 724 is fixed on the lower base 723. With the insulating guide slider 725, the conductive slider 724 of one sliding conductor 72 is inserted into the positive electrode groove 731, the conductive slider 724 of another sliding conductor 72 is inserted into the negative electrode groove 741, the insulating guide slider 725 of one sliding conductor 72 is inserted into the negative electrode groove 741, the insulating guide slider 725 of another sliding conductor 72 is inserted into the positive electrode groove 731, and the upper base 721, the connecting conductive rod 722, the sliding conductive rod 7221, the conductive slider 724 and the conductive flow channel 701 are electrically connected. The lower base 723 matches the shape of the insulating top groove 7111 and can move along the direction of the insulating top groove 7111; the conductive slider 724 is made of conductive material, such as copper sheet or copper alloy; the upper base 721, the lower base 723, and the insulating guide slider 725 are all made of insulating material, such as insulating plastic; one conductive slider 724 is connected as the positive electrode, and the other conductive slider 724 is connected as the negative electrode, and together with the positive conductive fixing piece 73 and the negative conductive fixing piece 74, a current loop is formed.

[0059] Specifically, in this example, the current flows sequentially through the conductive channel 701, the conductive slider 724, the sliding conductive rod 7221, the connecting conductive rod 722, and the upper base 721, forming a power channel and achieving stable power transmission. At the same time, the sliding conductive rod 7221 can move with the height adjustment of the dialing table 64, ensuring smooth power transmission and further improving the stability of power transmission.

[0060] As an optional example, please refer to Figures 1 to 16As shown, the linkage conductive rod 722 includes an insulating rod body 7222, with a conductive tube 7223 fixed to the inner wall of the insulating rod body 7222. A conductive slider 72241 is fixed to the upper end of the sliding conductive rod 7221 via bolts. A limiting flange 72242 is fixed to the lower end of the sliding conductive rod 7221. The lower base 723 includes a lower seat body 7231 and a lower cover body 7232. A lower receiving groove 7233 is formed at the upper end of the lower seat body 7231. The lower part of the sliding conductive rod 7221... Inserted into the lower receiving groove 7233, the lower end of the lower cover 7232 abuts against the sliding conductive rod 7221 and fixes the sliding conductive rod 7221 in the lower receiving groove 7233. The upper end of the conductive tube 7223 is provided with a conductive head 72231 extending out of the insulating rod body 7222. A conductive connecting piece 726 is inserted and fixed on the upper base 721. An arc-shaped sliding groove 7261 is provided on the conductive connecting piece 726, and the conductive head 72231 is slidably inserted into the arc-shaped sliding groove 7261. The upper base 721 has a central slot in the middle, and the insulating rod 7222 is set in the central slot by means of a rotating shaft connection. The outer wall of the upper base 721 has an arc-shaped groove that communicates with the central slot. The conductive connecting piece 726 is inserted into the outer wall of the upper base 721, and the arc-shaped sliding groove 7261 is inserted and fixed in the arc-shaped groove. The end of the conductive connecting piece 726 has an electrical hole for electrical connection.

[0061] The end of the conductive connecting piece 726 is electrically connected to the sliding telescopic rod 68 via a circuit. The side wall of the lower base 7231 has a conductive mounting groove communicating with the lower receiving groove 7233. The conductive sliding piece 724 is slidably inserted into the conductive mounting groove, and a conductive insertion hole is provided on the conductive sliding piece 724. The sliding conductive rod 7221 is inserted and fixed into the conductive insertion hole. The conductive tube 7223 and the conductive connecting piece 726 are made of conductive materials, such as copper sheets or copper alloys; the lower base 7231, the lower cover 7232, and the upper base 721 are all made of insulating materials, such as insulating plastics.

[0062] Specifically, this example simplifies the assembly and disassembly of the power transmission component 7 by dividing the connecting conductive rod 722 into multiple segments, thereby reducing the difficulty of assembling and disassembling the power transmission component.

[0063] As an optional example, please refer to Figures 1 to 16As shown, an insulating upper cover 7225 is fixed to the upper end of the insulating rod 7222 by bolts, and an insulating lower cover 7226 is fixed to the upper end of the insulating rod 7222 by bolts. A lower mounting groove matching the limiting flange 72242 is provided at the upper end of the lower receiving groove 7233. The insulating upper cover 7225 has a connecting hole into which a rotating shaft is inserted. The limiting flange 72242 is inserted into the lower mounting groove, and the lower end of the insulating upper cover 7225 abuts against and is fixed to the upper end of the limiting flange 72242.

[0064] Specifically, this example uses an insulating upper cover 7225 and an insulating lower cover 7226 to seal the insulating rod body 7222. The insulating lower cover 7226 can prevent the limiting flange 72242 from slipping off the lower end of the conductive tube 7223, and the insulating upper cover 7225 can prevent the limiting flange 72242 from slipping off the upper end of the conductive tube 7223. This ensures the stability of power transmission of the sliding conductive rod 7221 and has lower assembly and manufacturing difficulty, which helps to save costs.

[0065] As an optional example, please refer to Figures 1 to 16 As shown, during the operation of the wire rods, the wire rods may become intertwined, requiring the guide block 61 to actuate a portion of the wire rods to ensure smooth traction. However, because the wire rods may obstruct the operator's view, it is impossible to determine whether the limit block 66 has rotated to the working position. To determine whether the guide block 61 has rotated to the working position, the limit block 66 is equipped with a first position detector 8 for detecting the position of the guide block 61. The first position detector 8 is electrically connected to the conductive connecting piece 726 via a circuit. The first position detector 8 can be a contact displacement sensor used to detect whether the guide block 61 has rotated to the working position.

[0066] Specifically, this example uses the added limit block 66 structure to determine whether the wire guide block 61 has rotated to the working position, avoiding the obstruction of the wire rod and ensuring the stability of the wire guide block 61's operation.

[0067] In summary, this invention achieves synchronous wire feeding of the wire rod through the cooperation of the active wire feeding mechanism 2 and the wire rod mechanism 5. By switching between the second support mechanism 3 and the third support mechanism 4, the wire feeding frame 51 can be freely supported, facilitating the placement and feeding of the wire rod, reducing the downtime of the wire drawing machine, and improving the processing efficiency of the wire drawing machine. At the same time, the added wire pulling mechanism 6 allows the wire rod to move with the wire drawing speed, making the traction force of the wire rod more stable, reducing the deformation caused by excessive traction of the wire rod, ensuring the wire drawing quality of the wire drawing machine, and by adding the power transmission component 7, realizing the transmission of electricity, avoiding the spread of wire circuits and tubing, facilitating power transmission, and improving the service life of the wire feeding device.

[0068] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0069] This 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 this invention should be included within the scope of protection of this invention.

Claims

1. A wire feeding device with a wire-picking mechanism, characterized in that, include: First support structure (1); The active wire feeding mechanism (2) has a wire feeding motor (21), a rotating shaft (22), a connecting frame (23) and a guide wheel (24). The wire feeding motor (21) is fixedly connected to the first support mechanism (1). One end of the rotating shaft (22) is connected to the first support mechanism (1) by rotation. The connecting frame (23) is fixed on the outer wall of the rotating shaft (22). The guide wheel (24) is connected to the connecting frame (23) by rotation. The output shaft of the wire feeding motor (21) is drivenly connected to the rotating shaft (22). The second support mechanism (3) has a second support end (31) that can move vertically; The third support mechanism (4) has a third support end (41) that is capable of moving along the center line of the rotation axis (22); The wire rod mechanism (5) has a wire feeding frame (51) for placing wire rods. The other end of the rotating shaft (22) is connected to one end of the wire feeding frame (51) by rotation. The second support end (31) can be fixedly connected to the lower end of the wire feeding frame (51) by insertion. The third support end (41) can be fixedly connected to the other end of the wire feeding frame (51) by insertion. The wire-picking mechanism (6) is fixedly connected to the wire-feeding frame (51) and has a wire-picking block (61) that can move along the length of the wire-feeding frame (51). The wire-picking mechanism (6) includes a wire-picking housing (62) fixedly connected to the wire-laying frame (51). A wire-picking guide rail assembly (63) is fixed inside the wire-picking housing (62) and arranged along the length of the wire-laying frame (51). A wire-picking table (64) is slidably mounted inside the wire-picking guide rail assembly (63). A power assembly (65) is installed inside the wire-picking housing (62). The power assembly (65) drives the wire-picking table (64) to reciprocate along the wire-picking guide rail assembly (63). The wire-picking table (64) is equipped with... A wire-picking shaft (642) is fixedly installed by rotation. The wire-picking block (61) is fitted and fixed on the outer wall of the wire-picking shaft (642). The wire-picking block (61) has a wire-picking end face (6101) that abuts against the wire rod. A limiting block (66) is fixed on the wire-picking platform (64) to limit the maximum rotation angle of the wire-picking block (61). A reset component (67) is fixed on the wire-picking platform (64). The reset component (67) is drivenly connected to the wire-picking block (61) and is used to drive the wire-picking end face (6101) to be set vertically. The reset assembly (67) includes a reset spring (671), a guide post (672), a reset gear (673), and a reset rack (674). The upper end of the wire-shifting platform (64) has a wire-shifting through slot (641) extending through the wire-laying frame (51) along its length. The reset rack (674) is slidably mounted within the wire-shifting through slot (641). The reset rack (674) has a through hole (6741) extending along its length. The guide post (672)... The wire passes through the through hole (6741) and is fixed in the wire guide groove (641). The return spring (671) is fitted on the outer wall of the guide post (672). One end of the return spring (671) abuts against the return rack (674), and the other end of the return spring (671) abuts against the wire guide groove (641). The return gear (673) is fitted and fixed on the outer wall of the wire guide shaft (642) by a key connection. The return gear (673) meshes with the return rack (674).

2. The wire feeding device with a wire-picking mechanism according to claim 1, characterized in that, The dial housing (62) has a mounting chamber inside. The top of the dial housing (62) has an upper through groove (621) that extends into the mounting chamber. The dial guide rail assembly (63) includes two sets of guide rail units symmetrically arranged in the mounting chamber. Each guide rail unit includes an upper guide rail (631) and a lower guide rail (632) that are fixedly connected to the dial housing (62). The upper guide rail (631) has an upper guide groove (6311) at one end facing the lower guide rail (632). The lower guide rail (632) has a lower guide groove (6321) at one end facing the upper guide rail (631). The upper guide groove (6311) and the lower guide groove (6321) are combined to form a sliding guide groove arranged along the length of the wire feeding frame (51). The bottom of the wire feeding table (64) is equipped with a sliding telescopic rod (68) and two sets of symmetrically arranged sliding components (69) by rotation. The sliding components (69) are installed in the corresponding sliding guide groove by sliding. The moving assembly (69) includes two sets of sliding units arranged in the same direction and a connecting rod (691) connecting the two sets of sliding units. A connecting rod (692) is fixed between the two connecting rods (691). The telescopic end of the sliding telescopic rod (68) is fitted onto the outer wall of the connecting rod (692) by rotation. The sliding unit includes a rotating arm (696) and a sliding connecting plate (693). One end of the rotating arm (696) is connected to the dialing table (64) by rotation. The other end of the boom (696) is connected to the sliding connecting plate (693) by a rotatable connection. The middle part of the boom (696) is connected to the connecting rod (691) by a rotating shaft. A sliding rotating shaft (694) is fixed on the sliding connecting plate (693) along the width direction of the wire feeding frame (51). A guide wheel (695) is fixed on the outer wall of the sliding rotating shaft (694) by a rotatable connection. The guide wheel (695) is installed in the corresponding sliding guide groove.

3. The wire feeding device with a wire-picking mechanism according to claim 2, characterized in that, The wire feeding device with a wire pulling mechanism further includes a power transmission component (7), which includes a fixed conductive strip (71) and two sets of sliding conductors (72). The fixed conductive strip (71) is fixedly connected to an upper guide rail (631). The fixed conductive strip (71) has a conductive channel (701) arranged along the length of the wire feeding frame (51). One end of the sliding conductor (72) is slidably inserted into the conductive channel (701) and electrically connected to the sliding conductor (72). The sliding telescopic rod (68) is electrically driven, and the other end of the sliding conductor (72) is electrically connected to the sliding telescopic rod (68).

4. The wire feeding device with a wire-picking mechanism according to claim 3, characterized in that, The fixed conductive strip (71) includes an insulating mounting strip (711). The upper end of the insulating mounting strip (711) is provided with an insulating top groove (7111) along the length of the wire feeding frame (51). Two symmetrically arranged positive conductive mounting grooves (7112) and negative conductive mounting grooves (7113) are opened in the insulating top groove (7111). A positive conductive fixing piece (73) arranged along the length of the wire feeding frame (51) is inserted and fixed in the positive conductive mounting groove (7112). A negative conductive fixing piece (74) arranged along the length of the wire feeding frame (51) is inserted and fixed in the negative conductive mounting groove (7113). The positive conductive fixing piece (73) has a positive sliding groove (731), and the negative conductive fixing piece (74) has a negative sliding groove (741). The positive sliding groove (731) and the negative sliding groove (741) are combined to form a conductive flow channel (701).

5. The wire feeding device with a wire-picking mechanism according to claim 4, characterized in that, The sliding conductor (72) includes an upper base (721) fixedly connected to the dialing table (64). A connecting conductive rod (722) is rotatably mounted on the upper base (721). The connecting conductive rod (722) has a telescopic sliding conductive rod (7221). A lower base (723) is rotatably mounted on the sliding conductive rod (7221). The lower base (723) is slidably mounted in an insulating top groove (7111). A conductive slider (724) and an insulating guide slider (725) are fixed on the lower base (723). The conductive slider (724) of the sliding conductor (72) is inserted into the positive electrode groove (731), the conductive slider (724) of the other sliding conductor (72) is inserted into the negative electrode groove (741), the insulating guide slider (725) of one sliding conductor (72) is inserted into the negative electrode groove (741), the insulating guide slider (725) of the other sliding conductor (72) is inserted into the positive electrode groove (731), and the upper base (721), the connecting conductive rod (722), the sliding conductive rod (7221), the conductive slider (724) are electrically connected to the conductive flow channel (701).

6. The wire feeding device with a wire-picking mechanism according to claim 5, characterized in that, The linkage conductive rod (722) includes an insulating rod body (7222), and a conductive tube (7223) is fixed to the inner wall of the insulating rod body (7222). The upper end of the sliding conductive rod (7221) is fixed with a conductive slider (72241) by bolt connection. The lower end of the sliding conductive rod (7221) is fixed with a limiting flange (72242). The lower base (723) includes a lower seat body (7231) and a lower cover body (7232). The upper end of the lower seat body (7231) is provided with a lower receiving groove (7233). The lower part of the sliding conductive rod (7221) is inserted into the lower receiving groove (7233). The lower end of the lower cover body (7232) abuts against the sliding conductive rod (7221) and fixes the sliding conductive rod (7221) in the lower receiving groove (7233). 33) Inside, the upper end of the conductive tube (7223) is provided with a conductive head (72231) extending out of the insulating rod body (7222). A conductive connecting piece (726) is inserted and fixed on the upper base (721). An arc-shaped sliding groove (7261) is provided on the conductive connecting piece (726). The conductive head (72231) is slidably inserted into the arc-shaped sliding groove (7261). The end of the conductive connecting piece (726) is electrically connected to the sliding telescopic rod (68) through a line. The side wall of the lower seat (7231) is provided with a conductive mounting groove that communicates with the lower receiving groove (7233). The conductive sliding piece (724) is slidably inserted into the conductive mounting groove. A conductive insertion hole is provided on the conductive sliding piece (724). The sliding conductive rod (7221) is inserted and fixed in the conductive insertion hole.

7. The wire feeding device with a wire-picking mechanism according to claim 6, characterized in that, An insulating upper cover (7225) is fixed to the upper end of the insulating rod (7222) by bolt connection, and an insulating lower cover (7226) is fixed to the upper end of the insulating rod (7222) by bolt connection. The upper end of the lower receiving groove (7233) is provided with a lower mounting groove that matches the limiting flange (72242).

8. The wire feeding device with a wire-picking mechanism according to claim 7, characterized in that, The limiting block (66) is equipped with a first position detector (8) for detecting the position of the dial block (61), and the first position detector (8) is electrically connected to the conductive connecting piece (726) through a line.

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