A presser disc and presser assembly

Abstract

The application discloses a pressing disc and a pressing assembly. The pressing disc comprises a pressing disc body used for concentric cooperation with a brush disc. A plurality of sliding grooves are uniformly arranged at the outer periphery of the pressing disc body in the circumferential direction, and a telescopic rod capable of telescoping in the radial direction is arranged in each sliding groove. The plurality of telescopic rods can change the pressing area of the pressing disc body by telescoping in the radial direction. When two pressing discs are oppositely combined on the two sides of the brush disc to form the pressing assembly, the telescopic rods are extended to press the material silk on the two sides of the brush disc, so that the material silk is prevented from being scattered due to accidental rebounding, the next step of the stable stock fixing process is ensured, and the efficiency and quality of the brush disc forming are improved.

Description

Technical Field

[0001] This invention relates to the field of strip grinding, and particularly to a wire pressing disc and a wire pressing assembly. Background Technology

[0002] Strip steel is typically manufactured using a hot-rolling process. Before actual use, rust and oxide scale will appear on the surface of the strip steel, requiring brush rollers to polish the surface. To facilitate disassembly and maintenance, an existing brush roller structure is designed with multiple grinding brush discs mounted on the roller shaft. Each grinding brush disc includes a brush plate, and the inner side of the brush plate has multiple circumferentially distributed through holes. Resin material filaments need to be inserted into the through holes. The filaments are folded in half radially away from the brush plate to form two strands of filaments at both ends of the brush plate. The two strands of filaments need to be fixed together by wire winding or hot-melt welding to form brush strips for polishing the surface of the strip steel.

[0003] When the filaments are folded manually or using processing equipment, they can indeed form two strands on both sides of the brush plate under the action of external force. However, the filaments themselves are elastic. Once the external force is removed, the two strands tend to bounce back and separate. This not only causes the previously folded filaments to deviate from their intended positions, but also brings unnecessary trouble to the next step of fixing the strands, affecting the forming efficiency and quality of the brush plate. Summary of the Invention

[0004] The present invention provides a pressing disc, which has multiple sliding grooves arranged circumferentially on the outer periphery of the pressing disc body, and radially movable telescopic rods arranged in the sliding grooves, so that the multiple telescopic rods can change the pressing area of ​​the pressing disc body by radial extension and contraction.

[0005] Furthermore, a wire pressing assembly is provided, in which two wire pressing discs are aligned vertically within the mating area of ​​the two ends of the brush disc, allowing the telescopic rod to press or release the stranded wires on both sides of the corresponding through holes on the brush disc through radial extension and retraction, preventing the wires from accidentally springing back or scattering, and ensuring the forming quality and efficiency of the grinding brush disc.

[0006] The technical solution of this invention is implemented as follows:

[0007] A wire pressing disc includes a wire pressing disc body for concentric cooperation with a brush disc. Multiple grooves extending radially toward the inner side of the wire pressing disc body are evenly distributed around the outer periphery of the wire pressing disc body. A telescopic rod that can extend or retract radially is slidably connected in each groove.

[0008] Preferably, the telescopic rod has two opposing first limiting parts at its outer end, and a second limiting part is formed between every two adjacent grooves on the outer periphery of the pressing disc body. When the telescopic rod is retracted, the first limiting part abuts against the second limiting part to prevent the entire telescopic rod from being completely retracted into the groove.

[0009] Preferably, multiple through-type weight-reducing grooves are arranged circumferentially on the end face of the pressing disc body; the weight-reducing grooves can make the pressing disc body lighter and save the manufacturing cost of the pressing disc body.

[0010] Preferably, the telescopic rod has a telescopic length range of 10mm-40mm.

[0011] A wire pressing assembly includes a brush plate and two wire pressing discs. The brush plate has a plurality of through holes evenly distributed circumferentially on its end face for threading wires. The plurality of through holes form a mating area on both end faces of the brush plate. The two wire pressing discs are mated vertically on both end faces of the brush plate and are located in the mating area. The positions of the plurality of telescopic rods correspond one-to-one with the positions of the plurality of through holes of the brush plate. When the telescopic rods extend radially, they extend outward beyond the mating area.

[0012] Preferably, the end face of the pressing disc body facing away from the brush disc has multiple guide grooves evenly distributed circumferentially, corresponding to the positions of the sliding grooves, and the guide grooves extend radially; the guide grooves are connected to the corresponding sliding grooves; the telescopic rod is provided with a protrusion that is slidably connected in the guide groove, and the protrusion passes through the guide groove and extends beyond the corresponding end face of the pressing disc body; so that external force can be applied to the protrusion, thereby controlling the telescopic rod to extend or retract radially.

[0013] Preferably, the pressing disc includes a mating end face that fits against the brush disc, and the telescopic rod is spaced apart from the mating end face, thereby forming a clearance zone between the telescopic rod and the brush disc to avoid the material filaments; the width of the clearance zone is equivalent to the thickness of the stranded material filaments fitting against the end face of the brush disc, so as to avoid the telescopic rod from exerting a destructive squeezing force on the material filaments after it extends.

[0014] Preferably, the telescopic rod has two opposing side stops extending toward the brush plate, and the telescopic rod and the two side stops together form the avoidance area; the two opposing side stops can limit the filaments from spreading to both sides of the telescopic rod when it is extended.

[0015] Preferably, a support shaft is also included. The two pressing discs are divided into an upper pressing disc and a lower pressing disc by the brush disc. The pressing discs have a central hole at their center. The upper pressing disc and the lower pressing disc are fitted onto the upper end of the support shaft through the central hole. A control component is provided at the central hole to connect or separate the upper pressing disc and the lower pressing disc. The upper positioning disc can be freely locked or unlocked by the control component according to the processing and usage requirements, so as to meet the usage requirements of the grinding brush disc forming.

[0016] Preferably, the control component includes a fitting sleeve concentrically connected to the center hole of the upper pressure plate, a receiving hole at the upper end of the support shaft, a through-hole limit hole on the inner wall of the receiving hole, a movable limit ball in the limit hole, and a limit groove on the fitting sleeve corresponding to the position of the limit ball with an arc-shaped cross-section; a control shaft elastically retractable is provided in the receiving groove, the control shaft including a large diameter section and a small diameter section; the control component has a locked state and an unlocked state; when the control component is locked, the large diameter section of the control shaft abuts against the limit ball and keeps the limit ball in the limit groove, so that the upper pressure plate and the lower pressure plate remain connected; when the control component is unlocked, an external force applies elastic extension and retraction to the control shaft, so that the small diameter section corresponds to the position of the limit ball, at which time the limit ball can disengage from the limit groove, so that the upper pressure plate and the lower pressure plate are separated.

[0017] Preferably, the lower pressure plate has a positioning pin on its end face facing the upper pressure plate, and the brush plate has a positioning notch that matches the positioning pin on its end face, with the positioning pin locked in the positioning notch; this restricts the brush plate from moving around relative to the pressure plate assembly in the circumferential direction.

[0018] Preferably, the end face of the upper pressure plate facing the lower pressure plate is provided with a pin hole corresponding to the position of the positioning pin, and the positioning pin is inserted into the pin hole; to avoid relative movement between the upper and lower pressure plates in the circumferential direction.

[0019] The beneficial effects of the present invention, which adopts the above technical solution, are as follows:

[0020] By evenly distributing multiple grooves along the circumference of the pressing disc and installing a telescopic rod that can extend and retract radially within the grooves, when the two pressing discs are aligned with each other on both sides of the brush disc, the telescopic rod extends to press the filaments on both sides of the brush disc, preventing the filaments from unexpectedly springing back and spreading out. This ensures that the next step of fixing the stranded filaments can proceed stably, thus improving the efficiency and quality of the brush disc forming process.

[0021] After the filaments are folded outwards, multiple filaments will adhere tightly to the end face of the brush disc. To protect the portion of the filaments that are attached to the end face of the brush disc, a clearance zone is set between the telescopic rod and the brush disc. The clearance zone can prevent the telescopic rod from exerting a destructive shearing force on the filaments while it extends and presses them down, thus protecting the filaments.

[0022] Because the filaments themselves are elastic, multiple parallel filaments, even after being pressed by the telescopic rod, still tend to spread out to both sides of the brush plate. Therefore, the telescopic rod has two opposing side stops extending toward the brush plate. The side stops can confine multiple parallel filaments within the clearance area to prevent multiple filaments from spreading out from both sides.

[0023] A radially extending guide groove is provided on the end face of the pressing disc body facing away from the brush disc. A protrusion is slidably connected in the guide groove. The protrusion extends beyond the end face of the pressing disc body, so that external force can control the extension or retraction of the telescopic rod by moving the protrusion, so that the telescopic rod can quickly press or release the stranded wire. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the brush disc forming equipment;

[0025] Figure 2 This is an enlarged view of the telescopic rod on the pressure plate body;

[0026] Figure 3 This is an enlarged view of the telescopic rod after it extends radially outward;

[0027] Figure 4 This is a structural diagram of the wire pressing assembly.

[0028] Figure 5 An enlarged view of the locating pin;

[0029] Figure 6 A magnified view of a portion of the control component when it unlocks the upper pressure plate;

[0030] Figure 7 A magnified view of a portion of the control assembly locking the upper pressure plate;

[0031] The attached figures are labeled as follows: 1-Machine base, 2-Rotary table, 3-Wire threading mechanism, 4-Hot melt welding mechanism, 5-Push-reset mechanism, 8-Wire material, 9-Brush plate, 63-Pressing plate body, 63a-Center hole, 64-Stepper drive motor, 66-Matching sleeve, 67-Control shaft, 68-Limit ball, 91-Through hole, 92-Matching area, 93-Positioning notch, 631-Upper pressing plate, 631a-Second limit ball Position part, 631b-slide groove, 631c-weight reduction groove, 631d-positioning pin, 632-guide groove, 633-telescopic rod, 633a-first limiting part, 634-protrusion, 635-avoidance area, 636-support shaft, 636a-limiting hole, 637-electromagnetic clutch assembly, 638-lower pressure plate, 661-compression spring, 662-limiting slot, 671-small diameter section, 672-large diameter section. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0034] The specific implementation of this invention is as follows:

[0035] like Figure 1-7 As shown, this embodiment provides a pressing disc, including a pressing disc body 63 for concentric cooperation with the brush disc 9. The outer diameter of the pressing disc body 63 is smaller than the outer diameter of the brush disc 9. Multiple grooves 631b extending radially inward are evenly distributed around the outer periphery of the pressing disc body 63. A telescopic rod 633 that can extend or retract radially is slidably connected in each groove 631b. When cooperating with the brush disc 9 in the same direction, the telescopic rod 633 extends or retracts, which can change the pressing area of ​​the pressing disc body 63 on the end face of the brush disc 9, providing a structural basis for the telescopic rod 633 to press the stranded filaments.

[0036] Furthermore, to prevent the telescopic rod 633 from completely entering the slide groove 631b when retracted, the outer end of the telescopic rod 633 has two opposing first limiting portions 633a. On the outer periphery of the pressure plate body 63, a second limiting portion 631a is formed between every two adjacent slide grooves 631b. When the telescopic rod 633 retracts, the first limiting portion 633a abuts against the second limiting portion 631a to prevent the entire telescopic rod 633 from completely retracting into the slide groove 631b.

[0037] Furthermore, multiple through-type weight-reducing grooves 631c are arranged circumferentially on the end face of the pressing disc 63; the weight-reducing grooves 631c can make the pressing disc 63 lighter and save the manufacturing cost of the pressing disc 63.

[0038] like Figure 4 As shown, a wire pressing assembly is further provided, including a brush plate 9 and two wire pressing discs. The brush plate 9 has a plurality of through holes 91 evenly distributed circumferentially on its end face for threading wire 8. The plurality of through holes 91 form a mating area 92 on both end faces of the brush plate 9. The two wire pressing discs are mated vertically on both end faces of the brush plate 9 and are located in the mating area 92, and the positions of the plurality of telescopic rods 633 correspond one-to-one with the positions of the plurality of through holes 91 of the brush plate 9. When the telescopic rods 633 extend radially, the telescopic rods 633 extend outward beyond the mating area 92.

[0039] Furthermore, the telescopic length of the telescopic rod 633 needs to be kept within a reasonable range. If the telescopic length of the telescopic rod 633 is too short, it will be difficult to compress the wire. If the telescopic length is too long, it will cover the entire strand of wire, making it difficult for the welding head of the hot melt welding machine to contact the strand of wire, which will affect the next step of fixing. Therefore, in this embodiment, the telescopic length of the telescopic rod 633 is in the range of 10mm-40mm. Within this range, after the telescopic rod 633 extends, it can both compress the wire and expose part of the wire, which is convenient for fixing the two strands of wire in the next step.

[0040] Furthermore, to facilitate the extension or retraction of the telescopic rod 633 so that the pressing disc 63 can press or release the filament, the pressing disc 63 has a plurality of guide grooves 632 evenly distributed circumferentially on the end face of the pressing disc 63 facing away from the brush disc 9, corresponding to the positions of the sliding grooves 631b. The guide grooves 632 extend radially and are connected to the corresponding sliding grooves 631b. The telescopic rod 633 is provided with a protrusion 634 that is slidably connected in the guide groove 632, and the protrusion 634 passes through the guide groove 632 and extends beyond the corresponding end face of the pressing disc 63. This allows external force to act on the protrusion 634, thereby controlling the telescopic rod 633 to extend or retract radially.

[0041] Furthermore, the pressing disc includes a mating end face that fits against the brush disc 9. After the filaments are folded outwards, multiple filaments will adhere tightly to the end face of the brush disc. To protect the portion of the multiple filaments that are attached to the end face of the brush disc, the telescopic rod 633 is spaced apart from the mating end face, thereby forming a clearance area 635 between the telescopic rod 633 and the brush disc 9 to avoid the filaments 8. The width of the clearance area 635 is equivalent to the thickness of the filaments that are attached to the end face of the brush disc 9, so as to avoid the telescopic rod 633 from exerting a destructive squeezing force on the filaments after it extends, and to ensure that the telescopic rod 633 protects the filaments while extending.

[0042] Furthermore, the filaments themselves are elastic. Even after being compressed by the telescopic rod, multiple parallel filaments still tend to spread out to both sides of the brush plate. Therefore, in this embodiment, the telescopic rod 633 has two opposing side stops 635a extending toward the brush plate 9. The telescopic rod 633 and the two side stops 635a form the avoidance area 635. The two opposing side stops 635a can restrict the filaments within the avoidance area 635 when the telescopic rod is extended, preventing the filaments from spreading out to both sides of the telescopic rod 633 due to their own rebound.

[0043] like Figure 6-7As shown, the wire pressing assembly also includes a support shaft 636. The two wire pressing discs are divided into an upper wire pressing disc 631 and a lower wire pressing disc 638 by the brush disc 9. Each wire pressing disc has a central hole 63a. The upper wire pressing disc 631 and the lower wire pressing disc 638 are fitted onto the upper end of the support shaft 636 through the central hole 63a. When the two strands of wire on the brush disc 9 are not fixed, the upper wire pressing disc 631 and the lower wire pressing disc 638 must remain relatively fixed to press the wire. After the two strands of wire on the brush disc 9 are fixed, the already formed wire must be... The grinding brush disc is removed; therefore, in this embodiment, a control component is provided at the center hole 63a position to connect or separate the upper pressure plate 631 and the lower pressure plate 638; the control component includes a mating sleeve 66 concentrically connected at the center hole 63a position of the upper pressure plate 631, a receiving hole is provided at the upper end of the support shaft 636, a through limiting hole 636a is provided on the inner wall of the receiving hole, a movable limiting ball 68 is provided in the limiting hole 636a, and the mating sleeve 66 is provided with a corresponding position to the limiting ball 68. The limiting groove 662 has an arc-shaped cross-section; the receiving groove is provided with a control shaft 67 that can be elastically extended and retracted. Specifically, a compression spring 661 is provided in the receiving hole. The compression spring acts on the bottom end of the control shaft 636. External force pressing the control shaft 636 can cause the compression spring 661 to deform. The control shaft 67 includes a large diameter section 672 and a small diameter section 671. The control component has a locked state and an unlocked state. When the control component is in the locked state, the large diameter section 672 of the control shaft 67 abuts against the limiting ball 68, and the limiting ball 672... The upper pressure plate 631 and the lower pressure plate 638 are connected by being locked in the limiting slot 662. When the control component is in the unlocked state, the external force acts on the control shaft 67 to elastically extend and retract, so that the small diameter section 671 corresponds to the position of the limiting ball 68. At this time, the limiting ball 68 can be dislodged from the limiting slot 662, so that the upper pressure plate 631 and the lower pressure plate 638 are separated. This allows the upper positioning plate 631 to be freely locked or unlocked by the control component according to the processing and usage requirements, thus meeting the usage requirements of the grinding brush plate forming.

[0044] like Figure 5 As shown, in order to prevent the brush disk 9 from moving circumferentially on the wire pressing assembly, the lower wire pressing disk 638 has a positioning pin 631d on its end face facing the upper wire pressing disk 631, and the brush disk 9 has a positioning notch 93 that matches the positioning pin 631d on its end face, and the positioning pin 631d is stuck in the positioning notch 93.

[0045] Furthermore, in order to prevent the upper pressure plate 631 and the lower pressure plate 638 from moving relative to each other in the circumferential direction, the end face of the upper pressure plate 631 facing the lower pressure plate 638 is provided with a pin hole corresponding to the position of the positioning pin 631d, and the positioning pin 631d is inserted into the pin hole.

[0046] In this embodiment, the wire pressing assembly can press the stranded wires on both sides of the brush disk 9 onto the end face of the brush disk 9, effectively preventing the wires from springing back and misaligning when producing the grinding brush disk manually or with processing equipment. Taking the grinding brush disk forming equipment as an example, such as... Figure 1 As shown, the brush grinding device includes a machine base 1, on which a wire threading mechanism 3, a hot melt welding mechanism 4, and a rotary table 2 are sequentially arranged. The rotary table 2 is equipped with the aforementioned wire pressing assembly, which drives the brush 9 to rotate gradually at a predetermined angle, so that the through holes 91 on the brush 9 can be threaded or welded one by one. A mounting hole is provided in the middle of the rotary table 2, and a push-reset mechanism 5 independent of the rotary table 2 is provided in the mounting hole. Stepper drive motors 64 are arranged near the wire threading mechanism 3 and the hot melt welding mechanism 4. The bottom end of the support shaft 636 on each wire pressing assembly is equipped with an electromagnetic clutch assembly 637 that cooperates with the stepper drive motor 64.

[0047] When the brush disc forming equipment is working, the threading mechanism 3 can thread multiple wires 8 of a predetermined length into one of the through holes 91 of the brush disc 9. The protrusions 634 on the pressure disc body 63 cause the corresponding telescopic rods 633 to extend and press the two stranded wires. Then, the stepper motor 64 near the threading mechanism 3 drives the two pressure disc bodies 63 to rotate, aligning the next through hole with the wire 8. This process is repeated until all the telescopic rods 633 extend and press the stranded wires. Afterward, the rotary table 2 rotates, moving the brush disc 9 to the hot melt welding mechanism 4. The welding head on the hot melt welding mechanism 4 descends and welds the two stranded wires together. Then, the hot melt welding mechanism 4... A nearby stepper motor 64 drives two wire pressing discs 63 to rotate, aligning the next set of stranded wires with the welding head, repeating this process until the two stranded wires at all through holes 91 are welded and fixed. Afterward, to reset the telescopic rods 633, a push-reset mechanism 5 is used to reset multiple telescopic rods 633. The push-reset mechanism 5 includes a push plate driven by a cylinder. The push plate extends and retracts, causing one of the telescopic rods 633 to retract back to its original position. Then, a stepper motor 64 near the hot melt welding mechanism 4 drives two wire pressing discs 63 to rotate, aligning the next telescopic rod 633 with the push plate, repeating this process until all telescopic rods 633 have retracted back to their original position.

[0048] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A wire pressing assembly, characterized in that: The device includes a brush plate (9) and two pressing plates. The pressing plates include pressing plate bodies (63) for concentric cooperation with the brush plate (9). Multiple grooves (631b) extending radially toward the inner side of the pressing plate body (63) are evenly distributed around the outer periphery of the pressing plate body (63). Each groove (631b) is slidably connected to a telescopic rod (633) that can extend or retract radially. Multiple through holes (91) for threading the wire (8) are evenly distributed around the end face of the brush plate (9). The multiple through holes (91) form a mating area (92) on both end faces of the brush plate (9). The two pressing plates are mated vertically on both end faces of the brush plate (9) and are located in the mating area (92), so that the positions of the multiple telescopic rods (633) correspond one-to-one with the positions of the multiple through holes (91) of the brush plate (9). When the telescopic rods (633) extend radially, the telescopic rods (633) extend outward beyond the mating area (92).

2. The wire pressing assembly according to claim 1, characterized in that: The telescopic rod (633) has two opposing first limiting parts (633a) at its outer end. On the outer periphery of the pressing disc body (63), a second limiting part (631a) is formed between every two adjacent sliding grooves (631b). When the telescopic rod (633) is retracted, the first limiting part (633a) abuts against the second limiting part (631a).

3. The wire pressing assembly according to claim 1, characterized in that: Multiple through-weight-reducing grooves (631c) are arranged circumferentially on the end face of the pressing disc (63).

4. The wire pressing assembly according to claim 1, characterized in that: The telescopic rod (633) has a telescopic length range of 10mm-40mm.

5. A wire pressing assembly according to claim 1, characterized in that: On the end face of the pressing disc (63) facing away from the brush disc (9), there are multiple guide grooves (632) that are evenly distributed along the circumference and correspond to the positions of the slide grooves (631b). The guide grooves (632) extend radially. The guide grooves (632) are connected to the corresponding slide grooves (631b). The telescopic rod (633) is provided with a protrusion (634) that is slidably connected in the guide groove (632). The protrusion (634) passes through the guide groove (632) and extends beyond the corresponding end face of the pressing disc (63).

6. A wire pressing assembly according to claim 5, characterized in that: The pressing disc includes a mating end face that fits against the brush disc (9), and the telescopic rod (633) is spaced apart from the mating end face, thereby forming a clearance area (635) between the telescopic rod (633) and the brush disc (9) for avoiding the material wire (8).

7. A wire pressing assembly according to claim 6, characterized in that: The telescopic rod (633) has two opposing side stops (635a) extending toward the brush plate (9), and the telescopic rod (633) and the two side stops (635a) form the avoidance area (635).

8. A wire pressing assembly according to claim 1, characterized in that: It also includes a support shaft (636), and the two pressing discs are divided into an upper pressing disc (631) and a lower pressing disc (638) by a brush disc (9). The pressing discs have a central hole (63a) at the center position. The upper pressing disc (631) and the lower pressing disc (638) are fitted onto the upper end of the support shaft (636) through the central hole (63a). The central hole (63a) is provided with a control component that connects or separates the upper pressing disc (631) and the lower pressing disc (638).

9. A wire pressing assembly according to claim 8, characterized in that: The control assembly includes a fitting sleeve (66) concentrically connected to the center hole (63a) of the upper pressure plate (631). The upper end of the support shaft (636) has a receiving hole, and the inner wall of the receiving hole has a through-hole (636a). A movable limiting ball (68) is provided inside the limiting hole (636a). The fitting sleeve (66) has a limiting groove (662) corresponding to the position of the limiting ball (68) and having an arc-shaped cross-section. A control shaft (67) that can elastically extend and retract is provided inside the receiving groove. The control shaft (67) includes a large-diameter section (672) and a small-diameter section (671). The component has a locked state and an unlocked state; when the control component is in the locked state, the large diameter section (672) of the control shaft (67) abuts against the limiting ball (68) and makes the limiting ball (68) stuck in the limiting slot (662) so that the upper pressing plate (631) and the lower pressing plate (638) remain connected; when the control component is in the unlocked state, the external force acts on the control shaft (67) to elastically extend and retract, so that the small diameter section (671) corresponds to the position of the limiting ball (68), and at this time the limiting ball (68) can be dislodged from the limiting slot (662) so that the upper pressing plate (631) and the lower pressing plate (638) are separated.

10. A wire pressing assembly according to claim 8, characterized in that: The lower pressure plate (638) has a positioning pin (631d) on its end face facing the upper pressure plate (631), and the brush plate (9) has a positioning notch (93) that matches the positioning pin (631d) on its end face. The positioning pin (631d) is stuck in the positioning notch (93).

11. A wire pressing assembly according to claim 10, characterized in that: The upper pressure plate (631) has a pin hole on its end face facing the lower pressure plate (638) that corresponds to the position of the positioning pin (631d), and the positioning pin (631d) is inserted into the pin hole.

Images