Straightening device for flat copper wire production
By designing a straightening device including horizontal and vertical pressing wheel sets, the problem that the prior art cannot effectively straighten the flat copper wire, and the effective flattening treatment of the flat copper wire is achieved.
Patent Information
- Application Number
- CN202421243326.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The existing round copper wire straightening machines cannot be effectively used for flat copper wires, and cannot eliminate bending or distortion on multiple surfaces of flat copper wires, resulting in the inability to guarantee flatness.
A straightening device including a horizontal pressing wheel set and a vertical pressing wheel set is designed. By applying uniform pressure through multiple staggered horizontal and vertical pressing wheel sets, the pressure spacing is gradually reduced to adapt to the shape of flat copper wires, and multi-point straightening is achieved.
It effectively reduces the deformation of flat copper wire during the straightening process, ensures the flatness of flat copper wire, and is suitable for the production needs of flat copper wire.
Smart Images
Figure CN222643099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flat copper wire production, in particular to a straightening device for flat copper wire production. Background Art
[0002] Flat copper wire is a flat metal wire made of copper as the main raw material. It has good electrical conductivity, thermal conductivity and corrosion resistance. Due to its large cross-sectional area, compared with ordinary round copper wire, flat copper wire can provide a larger conductive area, thereby better conducting current. In addition, due to the special shape of flat copper wire, it can be flexibly wired in a limited space, saving space and facilitating installation. It is currently widely used in the field of electric vehicle motors.
[0003] At present, the more common straightening machines are mostly for common round copper wires. Round copper wire straightening machines are usually equipped with multiple sets of rollers arranged in a staggered manner. They straighten the round copper wire by applying pressure evenly. Due to the difference in shape between flat copper wire and round copper wire, the straightening of flat copper wire requires a multi-point straightening method to eliminate the bending or twisting on multiple surfaces of the wire to ensure its flatness. The existing round copper wire straightening machines are not well suited for this purpose. Utility Model Content
[0004] The utility model aims to provide a straightening device for flat copper wire production to solve the problems existing in the prior art.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a straightening device for flat copper wire production, including a plurality of horizontal pressure wheel groups, a vertical pressure wheel group, and a lead roller unit; the horizontal pressure wheel group and the vertical pressure wheel group include a plurality of horizontal pressure wheel units and a vertical pressure wheel unit, and the horizontal pressure wheel unit and the vertical pressure wheel unit respectively include two horizontal pressure wheels and a vertical pressure wheel that are relatively arranged; in the forward direction of the flat copper wire, the spacing between the horizontal pressure wheels and the vertical pressure wheels of the horizontal pressure wheel unit and the vertical pressure wheel unit gradually decreases.
[0006] Furthermore, the horizontal pressing wheel groups and the vertical pressing wheel groups are arranged alternately, or several horizontal pressing wheel groups are placed together, and several vertical pressing wheel groups are placed together, and then arranged in sequence.
[0007] Furthermore, the horizontal pressure wheel group includes a support plate, a plurality of upper horizontal pressure wheels, a lower horizontal pressure wheel, a distance adjusting component, the upper horizontal pressure wheel, and the lower horizontal pressure wheel are relatively arranged up and down, and their axes are on the same vertical line, the lower horizontal pressure wheel is rotatably connected to the support plate, and the upper horizontal pressure wheel is rotatably connected to the support plate through the distance adjusting component; the vertical pressure wheel group includes a support plate, a plurality of rear vertical pressure wheels, and a front vertical pressure wheel, the distance adjusting component, the rear vertical pressure wheel, and the front vertical pressure wheel are relatively arranged up and down, and their axes are on the same horizontal line, the front vertical pressure wheel is rotatably connected to the support plate, and the rear vertical pressure wheel is rotatably connected to the support plate through the distance adjusting component.
[0008] Furthermore, the distance adjusting assembly includes a fixed plate, a distance adjusting bolt group, a sliding seat, an upper spring, and a lower spring group; a slot is provided on one side of the support plate, and grooves are provided on both sides of the sliding seat, the sliding seat is inserted into the slot of the support plate, and the grooves on both sides of the sliding seat are slidably connected to the support plate inside the slot; the fixed plate is fixed to the top side of the slot of the support plate, and bolt holes are provided on it, the screw of the distance adjusting bolt group cooperates with the fixed plate, and the bottom is compressibly elastically connected to the sliding seat through the upper spring, and the bottom of the sliding seat is compressibly elastically connected to the bottom of the slot of the support plate through the lower spring group.
[0009] Furthermore, the lead roller unit includes a support plate, an upper lead roller, a lower lead roller, a distance adjusting component, and the upper lead roller and the lower lead roller are arranged opposite to each other up and down, and their axes are on the same vertical line. The lower lead roller center axis can rotatably pass through the support plate and is provided with a lower meshing gear. The upper lead roller center axis can rotatably pass through the sliding seat of the distance adjusting component and is provided with an upper meshing gear. The lower meshing gear and the upper meshing gear are meshed with each other, and the center axis of the upper lead roller or the lower lead roller is connected to the drive motor through a coupling.
[0010] Furthermore, a lead seat is arranged opposite to each other between the upper lead roller and the lower lead roller; the lead seat includes an upper seat and a lower seat, the upper seat and the lower seat are connected by a bolt structure, grooves are arranged on the upper seat and the lower seat in the joint surface area, and square through holes are formed after being interlocked with each other; protrusions are arranged at the front and rear ends of the groove of the lower seat, a groove is arranged on the bottom surface of the end of the protrusion, a guide pulley perpendicular to the moving direction of the copper wire is arranged in the groove, and the guide pulley is rotatably arranged in the groove, and the top is higher than the bottom surface of the groove.
[0011] Furthermore, a line-aligning unit is provided at the front end in the forward direction of the flat copper wire; the line-aligning unit includes two relatively arranged line-aligning seats and a line-aligning seat mounting plate; the line-aligning seat includes a line-aligning seat bottom plate, a line-aligning base and a line-aligning movable upper seat, the line-aligning base is fixedly provided on the line-aligning seat bottom plate, a slot is provided on the top, the line-aligning movable upper seat is inserted into the slot, the bottom is connected to the bottom of the slot through a spring, and the upper part of the line-aligning movable upper seat is a smooth surface; the two line-aligning seats are relatively arranged; the line-aligning seat bottom plate of the line-aligning seat can be adjusted to be connected to the line-aligning seat mounting plate.
[0012] Furthermore, the line-aligning unit also includes a line-aligning seat adjustment assembly; the line-aligning seat adjustment assembly includes a Y-shaped guide plate, a guide plate sliding seat, and an adjustment bolt group, the guide plate sliding seat is fixed to the line-aligning seat bottom plate, the Y-shaped guide plate is reciprocatingly connected to the guide plate sliding seat, the front part of the Y-shaped guide plate is provided with two forked ends, the forked ends are provided with obliquely arranged guide grooves, a guide rod is provided on the line-aligning seat bottom plate, the guide rod is inserted into the guide slot, and the position of the Y-shaped guide plate relative to the line-aligning seat mounting plate is adjusted by the adjustment bolt group.
[0013] The utility model realizes pressure straightening of the side of the flat copper wire by uniformly applying pressure through multiple groups of horizontal and vertical pressure wheels. Furthermore, the spacing between the multiple groups of horizontal and vertical pressure wheels can be gradually reduced to the size of the flat copper wire, which can effectively reduce the excessive deformation amount during the pressure straightening process for a certain side. In terms of specific structure, the horizontal and vertical pressure wheels can be arranged alternately or successively to meet different straightening requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall scheme of an embodiment of the utility model.
[0015] Figure 2 It is a schematic diagram of the overall scheme of another embodiment of the utility model.
[0016] Figure 3 It is a schematic diagram of the overall scheme of the third embodiment of the utility model.
[0017] Figure 4 It is a schematic diagram of the distance adjustment component of the utility model.
[0018] Figure 5 It is a schematic diagram of the back side of the lead roller unit of the utility model.
[0019] Figure 6 It is a schematic diagram of the lead holder of the utility model.
[0020] Figure 7 It is a schematic diagram of the overall scheme of another embodiment of the utility model.
[0021] Figure 8 It is a partially enlarged schematic diagram of the utility model's line-aligned unit solution.
[0022] Fig. 9 It is another partially enlarged schematic diagram of the in-line unit solution of the utility model.
[0023] Fig.10 It is an overall schematic diagram of the utility model's line-aligned unit solution.
[0024] Fig.11 It is an overall exploded schematic diagram of the utility model's in-line unit solution. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] As attached Figure 1-5 As shown, a straightening device for flat copper wire production according to the utility model comprises a plurality of horizontal pressing wheel groups 1, a vertical pressing wheel group 2, and a lead roller unit 3.
[0027] The horizontal pressing wheel group 1 and the vertical pressing wheel group 2 each include a plurality of horizontal pressing wheel units 11 and a plurality of vertical pressing wheel units 21. Figure 1 , 2 Includes two each.
[0028] The horizontal pressing wheel unit 11 and the vertical pressing wheel unit 21 respectively include two horizontal pressing wheels s and two vertical pressing wheels h that are arranged opposite to each other. The horizontal pressing wheels s and the vertical pressing wheels h are cylindrical structures.
[0029] The surfaces of the horizontal pressing wheel s and the vertical pressing wheel h may also be provided with grooves.
[0030] The horizontal pressing wheel group 1 and the vertical pressing wheel group 2 can be as shown in the attached Figure 1 The staggered arrangement shown in the figure can also be as shown in the figure. Figure 2 As shown, several horizontal pressing wheel groups 1 are placed together, and several vertical pressing wheel groups 21 are placed together, and then arranged in sequence.
[0031] In the advancing direction of the flat copper wire, the spacing between the horizontal pressing wheel s and the vertical pressing wheel h of the horizontal pressing wheel unit 11 and the vertical pressing wheel unit 21 gradually decreases.
[0032] The reduction of the spacing between the horizontal pressing wheel s and the vertical pressing wheel h of the horizontal pressing wheel unit 11 and the vertical pressing wheel unit 21 can be achieved by adjusting the axial distance between the relatively arranged horizontal pressing wheel s and the vertical pressing wheel h, or by adjusting the radius of the horizontal pressing wheel s and the vertical pressing wheel h.
[0033] Attached Figure 3 This is an embodiment of the present application. In this embodiment, the straightening device for flat copper wire production includes one horizontal pressure wheel group 1 and one vertical pressure wheel group 2. In the forward direction of the flat copper wire, the lead roller unit 3 is located behind the horizontal pressure wheel group 1 and the vertical pressure wheel group 2.
[0034] The horizontal pressure wheel group 1 includes a support plate a, a plurality of upper horizontal pressure wheels s1, a lower horizontal pressure wheel s2, a distance adjustment component b, the upper horizontal pressure wheels s1, and the lower horizontal pressure wheels s2 are arranged relatively to each other up and down, and their axes are on the same vertical line. The lower horizontal pressure wheel s2 is rotatably connected to the support plate a, and the upper horizontal pressure wheel s1 is rotatably connected to the support plate a through the distance adjustment component b.
[0035] The vertical pressure wheel group 2 includes a support plate a, a plurality of rear vertical pressure wheels h1, a front vertical pressure wheel h2, a distance adjustment component b, the rear vertical pressure wheels h1, and the front vertical pressure wheels h2 are arranged relatively to each other up and down, and their axes are on the same horizontal line. The front vertical pressure wheel h2 is rotatably connected to the support plate a, and the rear vertical pressure wheel h1 is rotatably connected to the support plate a through the distance adjustment component b.
[0036] As attached Figure 1 , 2 As shown in , 3 and 4, the distance adjustment component b includes a fixed plate b1, a distance adjustment bolt group b2, a sliding seat b3, an upper spring b4 and a lower spring group b5. A slot is provided on one side of the support plate a, and grooves are provided on both sides of the sliding seat b3. The sliding seat b3 is inserted into the slot of the support plate a, and the grooves on both sides of the sliding seat b3 are slidably connected with the inner support plate a at the slot. The fixed plate b1 is fixed to the top side of the slot of the support plate a, and a bolt hole is provided on it. The screw of the distance adjustment bolt group b2 cooperates with that on the fixed plate b1, and the bottom is compressibly elastically connected with the sliding seat b3 through the upper spring b4, and the bottom of the sliding seat b3 is compressibly elastically connected with the bottom of the slot of the support plate a through the lower spring group b5. A typical elastic connection method is that the two parts are respectively connected to the two ends of the spring. For example, the slotted bottom of the support plate a is connected to the bottom of the sliding seat b3. The screw of the adjustable bolt group b2 is connected to the top of the sliding seat b3 through the upper spring b4. A blind hole is provided on the top of the sliding seat b3, and the bottom of the screw is inserted into the blind hole. The lower part of the upper spring b4 is connected to the top of the sliding seat b3, and the upper part is connected to the middle and lower part of the screw. The blind hole of the screw forms a limiting structure.
[0037] The upper horizontal pressure wheel s1 and the rear vertical pressure wheel h1 are rotatably connected to the sliding seat b3. By adjusting the screw of the distance adjusting bolt group b2 and screwing it into the fixed plate b1, the distance between the upper horizontal pressure wheel s1 and the lower horizontal pressure wheel s2, and the distance between the rear vertical pressure wheel h1 and the front vertical pressure wheel h2 can be adjusted.
[0038] As attached Figure 1 , 2 As shown in Figures 3 and 5, the lead roller unit 3 includes a support plate a, an upper lead roller 31, a lower lead roller 32, a spacing component b, and the upper lead roller 31 and the lower lead roller 32 are arranged opposite to each other up and down, and their axes are on the same vertical line. The lower lead roller 32 is rotatably provided with a lower meshing gear 33 after the central axis passes through the support plate a, and the upper lead roller 31 is rotatably provided with an upper meshing gear 34 after the central axis passes through the sliding seat b3 of the spacing component b. The lower meshing gear 33 and the upper meshing gear 34 are meshed with each other. The central axis of the upper lead roller 31 or the lower lead roller 32 is connected to a driving motor (not shown in the figure) through a coupling 35. When in use, the spacing between the upper lead roller 31 and the lower lead roller 32 is adjusted so that they are in contact with the copper wire, and the copper wire is driven by friction to pass through the horizontal pressure wheel group 1, the vertical pressure wheel group 2, and the lead roller unit 3 to enter the subsequent process.
[0039] As attached Figure 3 , 6 As shown, further, a wire lead seat 35 is arranged opposite to each other between the upper wire lead roller 31 and the lower wire lead roller 32. The wire lead seat 35 includes an upper seat 351 and a lower seat 352, which are connected by a bolt structure, and grooves are arranged on the upper seat 351 and the lower seat 352 in the joint surface area, which are buckled together to form a square through hole.
[0040] A protrusion 3521 is arranged at the front and rear ends of the groove of the lower seat 352, and a groove is arranged on the bottom surface of the end of the protrusion. A guide pulley 3522 perpendicular to the moving direction of the copper wire is arranged in the groove. The guide pulley 3522 is rotatably arranged in the groove, and the top is higher than the bottom surface of the groove. When in use, the copper wire enters the directional through hole between the upper seat 351 and the lower seat 352 through the guide pulley 352.
[0041] Attached Figure 7 This is an embodiment of the present application, in which a line-aligning unit 4 is arranged at the front end in the advancing direction of the flat copper wire.
[0042] As attached Figure 7 , 8 As shown in Figures 9, 10 and 11, the line-aligning unit 4 includes two line-aligning seats 41 that are arranged opposite to each other, a line-aligning seat mounting plate 42 and a line-aligning seat adjustment assembly 43.
[0043] The line-aligning seat 41 comprises a line-aligning seat bottom plate 411, a line-aligning base 412, and a line-aligning movable upper seat 413. The line-aligning base 412 is fixedly arranged on the line-aligning seat bottom plate 411, and a slot is arranged on the top. The line-aligning movable upper seat 413 is inserted into the slot, and the bottom is connected to the slot bottom through a spring (not shown in the figure). In the attached figure, a guide groove is arranged on the side of the slot of the line-aligning base 412, and a guide protrusion matching with the guide groove is arranged on the side of the line-aligning movable upper seat 413. The upper part of the line-aligning movable upper seat 413 is a smooth surface, and a rotating slide rod can also be arranged.
[0044] The two line-aligning seats 41 are arranged opposite to each other, and the position of the line-aligning seat bottom plate 411 of the line-aligning seat 41 can be adjusted to be connected to the line-aligning seat mounting plate 42. Specifically, as shown in the attached Figure 7-11 As shown, the mounting plate 42 of the linear seat is provided with a protrusion, and the bottom plate 411 of the linear seat is provided with a groove matching therewith. The above-mentioned groove and protrusion realize the guiding and limiting function, and the position can be fixed by bolts.
[0045] The copper wire can enter the horizontal pressing wheel group 1 and the vertical pressing wheel group 2 at a predicted angle / side through the wire-aligning seat 41. The pressure of the wire-aligning seat 41 is relatively small, thereby avoiding or reducing bending, greater deformation, etc. caused by the unevenness of the copper wire when adjusting the angle of the copper wire.
[0046] The line-aligning seat adjustment assembly 43 includes a Y-shaped guide plate 431, a guide plate sliding seat 432, and an adjustment bolt group 433. The guide plate sliding seat 432 is fixed to the line-aligning seat base plate 411. The Y-shaped guide plate 431 is reciprocatably connected to the guide plate sliding seat 432. Two forked ends are provided at the front of the Y-shaped guide plate 431, and an inclined guide slot 4311 is provided on the forked end. A guide rod 4322 is provided on the line-aligning seat base plate 411, and the guide rod 4322 is inserted into the guide slot 4311. The position of the Y-shaped guide plate 431 relative to the line-aligning seat mounting plate 42 is adjusted by adjusting the bolt group 433. The position of the line-aligning seat 41 can be adjusted by the cooperation of the guide rod 4322 and the guide slot 4311.
[0047] The adjusting bolt group 433 fixing plate, bolt group, the fixing plate is fixed on the line-aligning seat mounting plate 42, which is provided with a threaded hole, one end of the screw of the bolt group is connected to the Y-shaped guide plate 431, and the other end passes through the threaded hole on the fixing plate and cooperates with the nut, thereby achieving the adjustment and limit of the position of the Y-shaped guide plate 431. Through the above-mentioned line-aligning seat adjustment assembly 43, the symmetry plane between the two line-aligning seats 41 can be kept constant, which facilitates the cooperation with the horizontal pressure wheel group 1 and the vertical pressure wheel group 2 after the copper wire passes.
[0048] It should be noted that, unless otherwise clearly specified and limited, the terms such as "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
Claims
1. A straightening device for flat copper wire production, characterized in that: It includes a plurality of horizontal pressure wheel groups, a vertical pressure wheel group, and a lead roller unit; the horizontal pressure wheel group and the vertical pressure wheel group include a plurality of horizontal pressure wheel units and a vertical pressure wheel unit, and the horizontal pressure wheel unit and the vertical pressure wheel unit respectively include two horizontal pressure wheels and a vertical pressure wheel that are relatively arranged; in the forward direction of the flat copper wire, the spacing between the horizontal pressure wheels and the vertical pressure wheels of the horizontal pressure wheel unit and the vertical pressure wheel unit gradually decreases.
2. A straightening device for producing flat copper wire according to claim 1, characterized in that: The horizontal pressing wheel groups and the vertical pressing wheel groups are arranged alternately, or several horizontal pressing wheel groups are placed together, several vertical pressing wheel groups are placed together, and then arranged in sequence.
3. A straightening device for producing flat copper wire according to claim 1, characterized in that: The horizontal pressing wheel group includes a support plate, a plurality of upper horizontal pressing wheels, a lower horizontal pressing wheel, a distance adjustment component, the upper horizontal pressing wheels, and the lower horizontal pressing wheels are arranged relatively up and down, and their axes are on the same vertical line, the lower horizontal pressing wheels are rotatably connected to the support plate, and the upper horizontal pressing wheels are rotatably connected to the support plate through the distance adjustment component; The vertical pressure wheel group includes a support plate, a plurality of rear vertical pressure wheels, a front vertical pressure wheel, a distance adjustment component, the rear vertical pressure wheels, and the front vertical pressure wheels are arranged relatively to each other up and down, and their axes are on the same horizontal line. The front vertical pressure wheel is rotatably connected to the support plate, and the rear vertical pressure wheel is rotatably connected to the support plate through the distance adjustment component.
4. A straightening device for producing flat copper wire according to claim 3, characterized in that: The pitch-adjusting assembly comprises a fixed plate, a pitch-adjusting bolt group, a sliding seat, an upper spring and a lower spring group; a slot is provided on one side of the support plate, and grooves are provided on both sides of the sliding seat, the sliding seat is inserted into the slot of the support plate, and the grooves on both sides of the sliding seat are slidably connected to the support plate inside the slot; the fixed plate is fixed to the top side of the slot of the support plate, and a bolt hole is provided on it, the screw of the pitch-adjusting bolt group cooperates with the fixed plate, and the bottom is compressibly elastically connected to the sliding seat through the upper spring, and the bottom of the sliding seat is compressibly elastically connected to the bottom of the slot of the support plate through the lower spring group.
5. A straightening device for producing flat copper wire according to claim 4, characterized in that: The lead roller unit includes a support plate, an upper lead roller, a lower lead roller, a distance adjustment component, and the upper lead roller and the lower lead roller are arranged opposite to each other up and down, and their axes are on the same vertical line. The lower lead roller center axis can rotatably pass through the support plate and is provided with a lower meshing gear. The upper lead roller center axis can rotatably pass through the distance adjustment component sliding seat and is provided with an upper meshing gear. The lower meshing gear and the upper meshing gear are meshed with each other, and the center axis of the upper lead roller or the lower lead roller is connected to the drive motor through a coupling.
6. A straightening device for producing flat copper wire according to claim 5, characterized in that: A lead seat is arranged opposite to each other between the upper lead roller and the lower lead roller; the lead seat includes an upper seat and a lower seat, the upper seat and the lower seat are connected by a bolt structure, grooves are arranged on the upper seat and the lower seat in the joint surface area, and square through holes are formed after being buckled with each other; protrusions are arranged at the front and rear ends of the groove of the lower seat, a groove is arranged on the bottom surface of the end of the protrusion, a guide pulley perpendicular to the moving direction of the copper wire is arranged in the groove, and the guide pulley is rotatably arranged in the groove, and the top is higher than the bottom surface of the groove.
7. A straightening device for producing flat copper wire according to claim 1, characterized in that: A line-aligning unit is arranged at the front end in the forward direction of the flat copper wire; the line-aligning unit includes two relatively arranged line-aligning seats and a line-aligning seat mounting plate; the line-aligning seat includes a line-aligning seat bottom plate, a line-aligning base and a line-aligning movable upper seat, the line-aligning base is fixedly arranged on the line-aligning seat bottom plate, a slot is arranged on the top, the line-aligning movable upper seat is inserted into the slot, the bottom is connected to the bottom of the slot by a spring, and the upper part of the line-aligning movable upper seat is a smooth surface; the two line-aligning seats are relatively arranged; the line-aligning seat bottom plate of the line-aligning seat can be adjusted to be connected to the line-aligning seat mounting plate.
8. A straightening device for producing flat copper wire according to claim 7, characterized in that: The line-aligning unit also includes a line-aligning seat adjustment assembly; the line-aligning seat adjustment assembly includes a Y-shaped guide plate, a guide plate sliding seat, and an adjustment bolt group. The guide plate sliding seat is fixed to the line-aligning seat bottom plate, and the Y-shaped guide plate is reciprocatingly connected to the guide plate sliding seat. Two forked ends are provided at the front of the Y-shaped guide plate, and the forked ends are provided with obliquely arranged guide grooves. A guide rod is provided on the line-aligning seat bottom plate, and the guide rod is inserted into the guide slot. The position of the Y-shaped guide plate relative to the line-aligning seat mounting plate is adjusted by the adjustment bolt group.