Rotating structure for twisting bow belt

Abstract

The utility model relates to a rotating structure for twisting a bow belt, which is mounted on a wire-passing die, is used for reducing friction between a die hole of the wire-passing die and a steel wire, and comprises a mounting seat and a wire-passing roller arranged on the mounting seat, the mounting seat comprises a mounting middle plate and a mounting side plate, the mounting middle plate is connected to the top of the wire-passing die through screws, and the mounting middle plate is further connected with the wire-passing die in a mortise and tenon joint mode. The arrangement reliability of the mounting middle plate is improved; the mounting side plates are symmetrically arranged at the two ends of the mounting middle plate, the mounting side plates are bent downwards and then abut against the side wall of the wire passing die and the surface of the stranding bow, the wire passing roller is rotationally arranged between the mounting side plates at the two ends, the length of the wire passing roller is equal to that of the wire passing die, and the wear-resistant sleeve is embedded in the die hole, so that the wear resistance of the die hole is improved; the maximum vertical distance between the wire passing roller and the stranding bow is larger than the minimum vertical distance between the wear-resistant sleeve and the stranding bow, and contact between the steel wire and the wear-resistant sleeve is reduced as much as possible. According to the utility model, the steel wire is lifted by the wire passing roller and passes through the die hole in an arch shape, so that the contact friction between the steel wire and the die hole is reduced.

Description

Technical Field

[0001] This utility model relates to the field of stranding machine technology, and in particular to a rotating structure for twisting bow belts. Background Technology

[0002] A stranding machine is a widely used mechanical device for stranding various soft / hard conductor wires. It can twist multiple single conductors into a single strand to meet the processing requirements of the wire. A tubular stranding machine is one type, comprising a central pay-off frame, a stranding main unit, a traction device, a take-up and unwinding device, and an electrical system. For example, patent publication number CN218826395U discloses a high-speed tubular stranding machine, which includes a central pay-off device, a stranding cylinder, a paralleling die, a straightening device, a conductor roller frame, and a take-up and unwinding device arranged sequentially along the stranding direction.

[0003] Because the pay-off frame and take-up / layout device of a conventional tubular stranding machine are located at opposite ends of the stranding main unit, and the pay-off reel on the pay-off frame releases the core wire, which then winds onto the take-up / layout device after passing through the stranding main unit and traction device, the core wire has a long release path on the pay-off reel. During its journey to the take-up / layout device, the core wire experiences friction from numerous components, leading to zinc loss—the zinc layer on the surface of the core wire peeling off. Due to the long release path, the zinc loss process is lengthy. Figure 1 As shown.

[0004] To address this issue, existing technologies combine bow-type stranding machines with tubular stranding machines. The bow-type stranding machine is positioned between the tubular stranding main unit and the take-up / layout device, essentially acting as a pay-off frame. This arrangement, with both the pay-off frame and the take-up / layout device located at one end of the tubular stranding main unit, reduces the release path length of the core wire on the pay-off frame, thereby minimizing friction on the core wire surface and reducing zinc stripping. Figure 2 As shown.

[0005] For example, the tubular stranding machine with a winch disclosed in patent publication number CN102543315A describes a process where "the steel wire is released from the wire reel and stranded, and the core wire is released from the core wire reel in a straight state, avoiding the twisting and scratching of the core wire caused by the core wire passing through the outer wall of the cylinder in ordinary tubular stranding machines." Similarly, a tubular stranding machine disclosed in patent publication number CN101604564B operates on the same principle, shortening the core wire release length and preventing excessive wear on the core wire.

[0006] Because the bow-type stranding machine is positioned between the tubular stranding main unit and the take-up and winding device, the steel wire released from the tubular stranding main unit must pass through the bow-type stranding machine before being wound onto the take-up and winding device. For example... Figure 3 and Figure 4As shown, a bow-type stranding machine has multiple bows (also known as bow bands) evenly distributed in a ring. The steel wire released from the main stranding machine passes over the bows. Multiple guide dies with perforations are evenly distributed on the bows. The steel wire passes through the guide dies to prevent it from being thrown off the bows due to centrifugal force during high-speed rotation. However, as the steel wire passes through the guide dies, friction occurs between the wire and the perforations, affecting the surface quality of the steel wire. Summary of the Invention

[0007] To solve the problem of friction between the steel wire and the die hole on the wire guide during operation, this utility model provides a rotating structure for twisting bow belts. A rotatable wire guide roller is installed on the wire guide die. The wire guide roller raises the steel wire and makes it pass through the die hole in an arch shape, thereby minimizing the contact friction between the steel wire and the die hole.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A rotating structure for twisting bow tape, mounted on a wire guide die, is used to reduce friction between the die hole of the wire guide die and the steel wire. It includes a mounting base and a wire guide roller disposed on the mounting base. The mounting base includes an integrally formed mounting center plate and mounting side plates. The mounting center plate is screwed to the top of the wire guide die, which facilitates the assembly and disassembly of the mounting center plate. The mounting center plate is also tenon-and-mortise connected to the wire guide die, which improves the reliability of the mounting center plate arrangement.

[0010] The mounting side plates are symmetrically arranged at both ends of the mounting plate. After being bent downward, the mounting side plates abut against the side wall of the wire guide die and the surface of the bow. The wire guide roller is rotatably arranged between the mounting side plates at both ends. The length of the wire guide roller is equal to the length of the wire guide die. A wear-resistant sleeve is embedded in the die hole to improve the wear resistance of the die hole. The maximum vertical distance between the wire guide roller and the bow is greater than the minimum vertical distance between the wear-resistant sleeve and the bow, so as to minimize the contact between the steel wire and the wear-resistant sleeve.

[0011] Furthermore, the guide wire mold is detachably mounted on the bow, facilitating its assembly and disassembly. The guide wire mold is arranged along the width of the bow, and the bow is provided with multiple bottom screws arranged in a straight line. The bottom screws penetrate the bow and are threadedly connected to the guide wire mold. The bottom screws and the guide wire mold are arranged on both sides of the bow.

[0012] Furthermore, the mounting plate is a straight plate with top screws at both ends, which penetrate the mounting plate and are threadedly connected to the die.

[0013] Furthermore, the middle part of the mounting plate and the middle part of the wire guide mold are connected by a dovetail tenon structure. The dovetail tenon structure includes a dovetail groove and a dovetail head. The dovetail groove is provided on the top of the wire guide mold, and the dovetail head is provided on the bottom of the mounting plate. The dovetail head is embedded in the dovetail groove. A bottom screw located in the middle of the wire guide mold extends upward and is threadedly connected to the dovetail head.

[0014] Furthermore, the mounting side plate is a plate bent into an inverted "L" shape. The upper end of the mounting side plate is bent horizontally upward and rests against the top of the wire guide mold. The lower end of the mounting side plate is bent vertically downward and rests against the surface of the bow. The lower end of the mounting side plate is also in contact with the side wall of the wire guide mold, which increases the contact area between the mounting side plate and other components.

[0015] Furthermore, both mounting side plates have through holes at their lower ends. These through holes are stepped holes, and bearings are embedded within them to facilitate the limiting of the bearings. The guide roller passes through the two bearings, and a retaining ring is also provided on the guide roller. The retaining ring abuts against the end face of the bearing to facilitate the limiting of the guide roller.

[0016] The beneficial effects of this utility model through the above technical solution are:

[0017] This utility model has a reasonable structural design. The die can be modified first by machining a dovetail groove and enlarging the original die hole. Then, a wear-resistant sleeve is embedded into the die hole. In this way, the wear-resistant sleeve plays the role of the original die hole, and the die hole can be regarded as a replaceable form. While improving the wear resistance of the die hole, it can also be replaced according to the wear condition.

[0018] The mounting base of this utility model is connected to the wire guide mold by a top screw, and a dovetail tenon structure is used to ensure a tight and reliable connection between the mounting base and the wire guide mold. The wire guide roller is rotatably arranged on the mounting base. The steel wire first passes through the wire guide roller and then through the wear-resistant sleeve. The wire guide roller can raise the steel wire and bend it into an arch shape to pass through the wear-resistant sleeve, minimizing the contact friction between the steel wire and the wear-resistant sleeve. Attached Figure Description

[0019] Figure 1 This is a simplified diagram of a conventional tubular stranding machine.

[0020] Figure 2 This is a simplified diagram of a combination of a bow-type stranding machine and a tubular stranding machine.

[0021] Figure 3 This is a top view of a bow-type stranding machine. The arrows in the diagram indicate the winding path of the steel wire on the bow.

[0022] Figure 4 This is a schematic diagram of the steel wire arrangement on the bow.

[0023] Figure 5 This is a top view of a rotating structure for a twisted bow belt according to this utility model.

[0024] Figure 6 This utility model relates to a rotating structure for twisted bow belts. Figure 5 Diagram of direction A in the middle.

[0025] Figure 7 This utility model relates to a rotating structure for twisted bow belts. Figure 5 Diagram of direction B in the middle.

[0026] Figure 8 This is a schematic diagram of the installation of a guide roller for a rotating structure used in twisting bow belts according to this utility model.

[0027] The attached diagram is labeled as follows: 1. Wire feeding frame, 2. Traction main unit, 3. Traction device, 4. Take-up and wire laying device, 5. Bow-type stranding machine, 6. Stranding bow, 7. Wire guide die, 8. Die hole, 9. Bottom screw, 10. Mounting base, 101. Mounting middle plate, 102. Mounting side plate, 11. Wire guide roller, 12. Top screw, 13. Dovetail groove, 14. Dovetail head, 15. Through hole, 16. Bearing, 17. Retaining ring, 18. Wear-resistant sleeve, 19. Arc groove. Detailed Implementation

[0028] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0029] like Figures 5-8 As shown, a rotating structure for twisting bow tape is mounted on a guide die 7 to reduce friction between the die hole 8 of the guide die 7 and the steel wire. The guide die 7 is arranged along the width of the bow 6, which is also the bow tape, and the twisting bow tape is the bow tape used for twisting the strands. The guide die 7 is detachably mounted on the bow 6. Specifically, the bow 6 has three bottom screws 9 arranged in a straight line. The bottom screws 9 and the guide die 7 are arranged on both sides of the bow 6, with a bottom screw 9 arranged between each two adjacent die holes 8. The bottom screws 9 pass through the bow 6 and are threadedly connected to the guide die 7, thereby fixing the guide die 7 onto the bow 6.

[0030] The rotating structure for twisting bow tape includes a mounting base 10 and a guide roller 11 disposed on the mounting base 10. The mounting base 10 is detachably connected to the guide die 7. The mounting base 10 includes a mounting center plate 101 and mounting side plates 102. The mounting center plate 101 is a straight plate. The mounting center plate 101 is screwed to the top of the guide die 7, that is, both ends of the mounting center plate 101 are provided with top screws 12. The top screws 12 and bottom screws 9 are corresponding vertically. The top screws 12 pass through the mounting center plate 101 and are threadedly connected to the guide die 7, thereby fixing the mounting center plate 101 on the guide die 7.

[0031] In addition to the screw connection, to improve the bonding force between the mounting plate 101 and the guide mold 7, the mounting plate 101 is also mortised and tenoned with the guide mold 7. Here, the middle parts of the mounting plate 101 and the guide mold 7 are connected by a dovetail joint. The dovetail joint includes a dovetail groove 13 and a dovetail head 14. The dovetail groove 13 is provided at the top of the guide mold 7, and the dovetail head 14 is provided at the bottom of the mounting plate 101. The dovetail head 14 and the mounting plate 101 are integrally formed, and the dovetail head 14 is embedded in the dovetail groove 13. Simultaneously, a bottom screw 9 located in the middle of the guide mold 7 extends upward and is threadedly connected to the dovetail head 14. This improves the connection reliability between the mounting base 10 and the guide mold 7, enabling the mounting base 10 to better resist the centrifugal force generated by rotation.

[0032] Mounting side plates 102 are symmetrically arranged at both ends of the mounting plate 101. The mounting side plates 102 and the mounting plate 101 are integrally formed. The mounting side plates 102 are bent into an inverted "L" shape. After bending downwards, the mounting side plates 102 abut against the side wall of the guide mold 7 and the surface of the bow 6. Specifically, the upper end of the mounting side plate 102 is bent horizontally upwards and abuts against the top of the guide mold 7, while the lower end of the mounting side plate 102 is bent vertically downwards and abuts against the surface of the bow 6. The lower end of the mounting side plate 102 is also in contact with the side wall of the guide mold 7. The bow 6 and the guide mold 7 provide more contact area for the mounting side plates 102, thereby ensuring the stability of the arrangement of the mounting side plates 102.

[0033] A guide roller 11 is rotatably provided between the mounting side plates 102 at both ends. Specifically, a through hole 15 is provided at the lower end of both mounting side plates 102. The through hole 15 is a stepped hole, and a bearing 16 is embedded in the through hole 15. The shoulder of the through hole 15 abuts against the outer ring of the bearing 16, thereby restricting the bearing 16 in one direction and preventing the bearing 16 from moving axially.

[0034] The length of the guide roller 11 is equal to the length of the guide die 7, ensuring that the guide roller 11 is arranged between multiple die holes 8. The guide roller 11 passes through two bearings 16, and the guide roller 11 and the inner ring of the bearing 16 are interference-fitted. In order to limit the axial movement of the guide roller 11, two retaining rings 17 are also provided on the guide roller 11. The two retaining rings 17 abut against the end faces of the two bearings 16 respectively, which can restrict the bearings 16 in another direction, preventing the bearings 16 from dislodging from the through hole 15. Moreover, the two retaining rings 17 can also prevent the axial displacement of the guide roller 11.

[0035] A wear-resistant sleeve 18 is embedded in the die hole 8. The wear-resistant sleeve 18 is a circular sleeve made of bearing steel 16, and it is interference-fitted with the die hole 8. By adding the wear-resistant sleeve 18, it serves as the die hole 8, allowing the die hole 8 to be replaced according to the degree of wear. The maximum vertical distance between the wire guide roller 11 and the bow 6 is greater than the minimum vertical distance between the wear-resistant sleeve 18 and the bow 6. Here, the maximum vertical distance between the wire guide roller 11 and the bow 6 is H1, and the minimum vertical distance between the wear-resistant sleeve 18 and the bow 6 is H2. In this way, the wire first passes through the wire guide roller 11, which raises the wire and makes it pass through the wear-resistant sleeve 18 in an arch shape, reducing the contact friction between the wire and the wear-resistant sleeve 18.

[0036] The principle of this invention is as follows: A bow 6 has multiple evenly arranged wire guide dies 7. Each wire guide die 7 has a mounting base 10 and a wire guide roller 11. A wear-resistant sleeve 18 is installed inside the die hole 8 of the wire guide die 7. Thus, when the steel wire passes through each wire guide die 7 on the bow 6, it first passes through the wire guide roller 11 and then through the wear-resistant sleeve 18. As the steel wire runs, it drives the wire guide roller 11 to rotate, and the wire guide roller 11 lifts the steel wire, causing it to bend into an arch shape as it passes through the wear-resistant sleeve 18. This reduces the contact area between the steel wire and the wear-resistant sleeve 18, thereby reducing the wear on the steel wire.

[0037] To optimize the product structure, an arc-shaped groove 19 is provided at the position of the wire guide roller 11 corresponding to each die hole 8. The arc-shaped groove 19 is arranged around the circumference of the wire guide roller 11, and the width of the arc-shaped groove 19 is smaller than the diameter of the wear-resistant sleeve 18. In this way, after the steel wire passes through the arc-shaped groove 19, it enters the wear-resistant sleeve 18 and runs within the arc-shaped groove 19, avoiding excessive contact between the steel wire and the inner wall of the wear-resistant sleeve 18.

[0038] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A rotating structure for twisting bow tape, mounted on a wire guide die (7), for reducing friction between the die hole (8) of the wire guide die (7) and the steel wire, characterized in that, Includes a mounting base (10) and a wire guide roller (11) disposed on the mounting base (10). The mounting base (10) includes a mounting center plate (101) and a mounting side plate (102). The mounting center plate (101) is screwed to the top of the wire guide mold (7) and is also tenon-mortised to the wire guide mold (7). The mounting side plates (102) are symmetrically arranged at both ends of the mounting plate (101). After the mounting side plates (102) are bent downward, they abut against the side wall of the wire guide mold (7) and the surface of the bow (6). The wire guide roller (11) is rotatably arranged between the mounting side plates (102) at both ends. The length of the wire guide roller (11) is equal to the length of the wire guide mold (7). A wear-resistant sleeve (18) is embedded in the mold hole (8). The maximum vertical distance between the wire guide roller (11) and the bow (6) is greater than the minimum vertical distance between the wear-resistant sleeve (18) and the bow (6).

2. The rotating structure for a twisted bow belt according to claim 1, characterized in that, The wire guide mold (7) is detachably mounted on the bow (6). The wire guide mold (7) is arranged along the width of the bow (6). The bow (6) is provided with a plurality of bottom screws (9) arranged in a straight line. The bottom screws (9) pass through the bow (6) and are threadedly connected to the wire guide mold (7). The bottom screws (9) and the wire guide mold (7) are arranged on both sides of the bow (6).

3. The rotating structure for a twisted bow belt according to claim 1, characterized in that, The mounting plate (101) is a straight plate. Both ends of the mounting plate (101) are provided with top screws (12). The top screws (12) pass through the mounting plate (101) and are threadedly connected to the wire guide mold (7).

4. The rotating structure for a twisted bow belt according to claim 2, characterized in that, The middle part of the mounting plate (101) and the middle part of the wire guide (7) are connected by a dovetail tenon structure. The dovetail tenon structure includes a dovetail groove (13) and a dovetail head (14). The dovetail groove (13) is provided on the top of the wire guide (7), and the dovetail head (14) is provided on the bottom of the mounting plate (101). The dovetail head (14) is embedded in the dovetail groove (13). A bottom screw (9) located in the middle of the wire guide (7) extends upward and is threadedly connected to the dovetail head (14).

5. The rotating structure for a twisted bow belt according to claim 1, characterized in that, The mounting side plate (102) is a plate body bent into an inverted "L" shape. The upper end of the mounting side plate (102) is bent upward horizontally and then rests against the top of the wire guide mold (7). The lower end of the mounting side plate (102) is bent downward vertically and then rests against the surface of the bow (6). The lower end of the mounting side plate (102) is also in contact with the side wall of the wire guide mold (7).

6. The rotating structure for a twisted bow belt according to claim 1, characterized in that, Both mounting side plates (102) have through holes (15) at their lower ends. The through holes (15) are stepped holes. A bearing (16) is embedded in the through holes (15). The thread roller (11) passes through the two bearings (16). A retaining ring (17) is also provided on the thread roller (11). The retaining ring (17) abuts against the end face of the bearing (16).

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