A fixing mechanism and a stranding machine stranding disc

Abstract

The application provides a fixing mechanism and a stranding machine stranding disc, and belongs to the technical field of stranding machines. The fixing mechanism comprises a mounting assembly and a tension assembly. The mounting assembly comprises a frame, a turning part, a core expanding part and a clamping turning part. The turning part is rotationally connected with the frame. One end of the core expanding part is arranged on the turning part. The clamping turning part is arranged on the frame and movably connected with the other end of the core expanding part. A wire cylinder is movably expanded on the core expanding part. The tension assembly comprises a pulley block and a friction part. The pulley block is arranged on the frame. In the application, the mounting assembly utilizes the deflection of the core expanding part to make one end thereof away from the clamping turning part, so as to install and fix the wire cylinder. The deflection installation of the wire cylinder facilitates the circular array of the whole mechanism to the stranding disc. The tension assembly utilizes the pulley block to detect the tension of the metal wire. The rotation of the core expanding part is limited by the friction part, so as to balance the tension.

Description

Technical Field

[0001] This application relates to the field of stranding machine technology, and more specifically, to a fixing mechanism and a stranding reel for a stranding machine. Background Technology

[0002] Thick metal wires are drawn into wires of a specified thickness using a wire drawing machine. Multiple strands of wire may need to be twisted into a single strand using a stranding machine. Existing high-speed stranding machines use threads and clamps to limit the movement of the wire drum. However, the wire drum is replaced frequently, and the threaded method for limiting and replacing it is a rather cumbersome process.

[0003] In response, Chinese patent application number CN202221280675.2 discloses a high-speed stranding machine for special cables. This solution mainly uses a fixing mechanism to limit and fix the cable drum, which facilitates the loading and unloading of the cable drum.

[0004] However, in the process of implementing the technical solutions in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: 1. Since each strand needs to be twisted during stranding, multiple spools are usually arranged in a circular array on a rotating frame to form a large stranding reel. Obviously, the above-mentioned method of inserting from one side cannot be arranged in a circular array on the stranding reel. 2. When the yarn comes out of the spool, the tension needs to be adjusted and stabilized. Usually, the rotation speed of the spool is limited, but the above solution does not have a tension adjustment mechanism. Summary of the Invention

[0005] To overcome the above deficiencies, this application provides a fixing mechanism aimed at improving the problems mentioned in the background art.

[0006] In a first aspect, embodiments of this application provide a fixing mechanism, including an installation component and a tension component.

[0007] The mounting assembly includes a frame, a steering component, an expansion core component, and a clamping component. The steering component is rotatably connected to the frame. One end of the expansion core component is disposed on the steering component. The clamping component is disposed on the frame and movably connected to the other end of the expansion core component. A wire spool is movably tensioned on the expansion core component. The tension assembly includes a pulley block and a friction component. The pulley block is disposed on the frame and movably connected to the expansion core component through the friction component.

[0008] In one specific implementation, the steering component includes a pivot and a bearing, the pivot being rotatably connected to the frame, and the bearing being disposed on the end face of the pivot.

[0009] In one specific implementation, the expansion core component includes an expansion sleeve, a conical core, and an electromagnetic lock. The expansion sleeve is rotatably connected to the rotating base via the bearing. The conical core is located inside the expansion sleeve and movably passes through the rotating base. One end of the conical core is fixedly connected to a roller. The electromagnetic lock is disposed on the rotating base, and the lock core of the electromagnetic lock is connected to the other end of the conical core.

[0010] In the above implementation process, the rotating base is used to support the expanding core component, the bearing is used for the smooth rotation of the expanding core component and the rotating base, and the electromagnetic lock pulls the conical core to expand the expanding sleeve so as to tighten and fix the spool. In this embodiment, since the conical core will rotate with the expanding sleeve, an electromagnetic lock with a lock core that can rotate freely is selected. In another embodiment, the lock core and the conical core are rotatably connected, so there is no rotation requirement for the lock core of the electromagnetic lock.

[0011] In one specific implementation, the expansion core component further includes a limiting disk, which is fixedly connected to the inner end of the expansion sleeve.

[0012] In the above process, the spool is placed on the expansion sleeve, so that the spool rests against the end face of the limiting plate at one end of the expansion sleeve. Then the spool and the expansion core are pushed back to facilitate the quick installation and positioning of the spool.

[0013] In one specific embodiment, the clamping component includes a rotating roller and a rotating wheel. Two rotating wheels are provided, and both rotating wheels and the rotating roller are rotatably connected to the frame. Both rotating wheels and the rotating roller are also tactilely connected to the roller.

[0014] In the above implementation process, the rotating wheel is set on the frame via a thin shaft. The roller can pass through the two rotating wheels from the position of the thin shaft. Specifically, the expansion core is rotated out and inserted into the bobbin. Then the expansion core is rotated back so that the roller fits against the rotating roller for positioning. Then the electromagnetic lock is activated to pull the conical core back. While tightening the expansion sleeve, the roller is pulled to the axial position of the two rotating wheels. In this way, the two rotating wheels and the rotating roller wrap around the roller and roll together to fix the bobbin. Here, the start switch of the electromagnetic lock can be set on the frame for easy operation of the corresponding electromagnetic lock when picking up or putting down a bobbin.

[0015] In one specific implementation, the pulley group includes a slider, a slide rail, fixed pulleys, and movable pulleys. The slide rail is disposed on the frame, the slider is slidably connected to the slide rail, the movable pulley is rotatably connected to the slider, and two fixed pulleys are provided, both of which are rotatably connected to the frame.

[0016] In the above implementation process, a wire sleeve is also provided on the frame. The metal wire on the wire spool is pulled out, passes through the wire sleeve, and then passes through a fixed pulley, a movable pulley and another fixed pulley in sequence. Then it is led out to the external stranding machine. The tension on the metal wire will be reflected on the movable pulley, causing the slider to slide on the slide rail.

[0017] In one specific embodiment, the friction element includes a friction plate A, a friction plate B, and a screw. The friction plate A and the friction plate B are slidably frictionally connected. The friction plate A is rotatably connected to the frame and to the rotating roller shaft. The screw is screwed to the frame, one end of the screw is rotatably connected to the friction plate B, and the friction plate B is axially movable to the frame.

[0018] In one specific implementation, the friction element further includes a turntable, a cable, and a torsion spring. The turntable is detachably connected to the outer end of the screw. The two ends of the cable are respectively connected to the turntable and the slider. One end of the torsion spring is fixedly connected to the frame, and the other end of the torsion spring is fixedly connected to the turntable.

[0019] In the above process, the torsion spring maintains the force of the turntable pulling the cable, while friction plates A and B are in contact. Specifically, when the tension increases, the movable pulley is pulled, the cable on the slider pulls the turntable to rotate, the turntable drives the screw to rotate, causing friction plate B to move axially, reducing the frictional resistance on friction plate A. The rotational resistance of the roller decreases, subsequently reducing the resistance of the roller, cone, expansion sleeve, and spool, thus reducing the tension of the metal wire. This provides a negative feedback adjustment, stabilizing the tension. It should be noted that both friction plates A and B have concave structures, and... The friction plates A and B are elastic, allowing the friction force to be adjusted by adjusting the bonding pressure when they are in contact. In this embodiment, since the roller needs to apply resistance to the wheel, both the roller and the wheel have axial grooves on their outer circumferences to increase friction and prevent slippage. In another embodiment, the roller and the wheel mesh with each other in a toothed manner. In this embodiment, the cable is turned by an additional fixed pulley. The turntable adopts the structure shown in the attached figure and is fixed to the screw by an external screw. The circumferential position of the turntable and the screw can be adjusted to manually set the tension.

[0020] In one specific implementation, a sliding rod is fixedly connected to the friction plate B, the sliding rod is axially slidably connected to the frame, and the sliding rod is rotatably connected to the screw.

[0021] In the above implementation process, the slide bar 227 is axially slidably connected to the frame 110 while being circumferentially fixed. At the same time, the slide bar 227 is rotatably connected to the screw 223. In this way, the torque of the friction plate B222 will not be transmitted to the screw 223, and will not cause the screw 223 to rotate, that is, it will not interfere with the axial adjustment function of the screw 223.

[0022] Secondly, this application also provides a stranding reel for a stranding machine, including the aforementioned fixing mechanism.

[0023] Compared with the prior art, the beneficial effects of this application are: the installation component uses the deflection of the expansion core to allow one end to leave the clamping component so that the bobbin can be installed and fixed. This deflection method of installing the bobbin facilitates the circular array of the entire mechanism onto the strand reel. The tension component uses a pulley system to detect the tension of the metal wire and uses a friction component to limit the rotation of the expansion core in order to balance the tension. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the circular array of fixing mechanisms on the stranded wire reel provided in the embodiments of this application; Figure 2 A schematic diagram illustrating the connection relationship between the expansion core component and the bobbin provided in the embodiments of this application; Figure 3 A schematic diagram illustrating the connection relationship between the steering component and the frame provided in this embodiment of the application; Figure 4 A schematic diagram illustrating the connection relationship between the expansion core component and the steering component provided in an embodiment of this application; Figure 5 This is a schematic diagram illustrating the connection relationship between the friction element and the clamping element provided in the embodiments of this application.

[0026] In the diagram: 100-Mounting component; 110-Frame; 120-Steering component; 121-Rotating seat; 122-Bearing; 130-Expanding core component; 131-Expanding sleeve; 132-Conical core; 133-Electromagnetic lock; 134-Roller; 135-Limiting plate; 140-Clamping component; 141-Rotating roller; 142-Rotating wheel; 150-Spool; 200-Tension component; 210-Pulley block; 211-Slider; 212-Slide rail; 213-Fixed pulley; 214-Moving pulley; 220-Friction component; 221-Friction plate A; 222-Friction plate B; 223-Screw; 224-Turntable; 225-Cable; 226-Torsion spring; 227-Slide rod. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0028] Please see Figure 1 This application provides a fixing mechanism, including an installation component 100 and a tension component 200.

[0029] The mounting assembly 100 uses the expansion core 130 to deflect one end of it away from the clamping member 140 so that the bobbin 150 can be installed and fixed. This deflection method of mounting the bobbin 150 makes it easier for the entire mechanism to be arranged in a circular array on the strand. The tension assembly 200 uses the pulley group 210 to detect the tension of the metal wire and uses the friction member 220 to limit the rotation of the expansion core 130 in order to balance the tension.

[0030] Please see Figures 1-5 The mounting assembly 100 includes a frame 110, a steering component 120, an expansion core component 130, and a clamping component 140. The steering component 120 is rotatably connected to the frame 110. One end of the expansion core component 130 is mounted on the steering component 120. The clamping component 140 is mounted on the frame 110 and movably connected to the other end of the expansion core component 130. A wire drum 150 is movably tensioned on the expansion core component 130. The tension assembly 200 includes a pulley block 210 and a friction component 220. The pulley block 210 is mounted on the frame 110 and movably connected to the expansion core component 130 through the friction component 220.

[0031] Please see Figures 2-3 The steering component 120 includes a rotating base 121 and a bearing 122. The rotating base 121 is rotatably connected to the frame 110, and the bearing 122 is disposed on the end face of the rotating base 121. The expansion core component 130 includes an expansion sleeve 131, a conical core 132, and an electromagnetic lock 133. The expansion sleeve 131 is rotatably connected to the rotating base 121 via the bearing 122. The conical core 132 is located inside the expansion sleeve 131 and movably passes through the rotating base 121. A roller 134 is fixedly connected to one end of the conical core 132. The electromagnetic lock 133 is disposed on the rotating base 121, and the lock core of the electromagnetic lock 133 is connected to the other end of the conical core 132. The rotating base 121 is used to support the expansion core 130, and the bearing 122 is used for the smooth rotation of the expansion core 130 and the rotating base 121. The electromagnetic lock 133 pulls the conical core 132 to expand the expansion sleeve 131 so as to tighten and fix the spool 150. In this embodiment, since the conical core 132 will rotate with the expansion sleeve 131, the electromagnetic lock 133 with a lock core that can rotate freely is selected. In another embodiment, the lock core and the conical core 132 are rotatably connected, so there is no rotation requirement for the lock core of the electromagnetic lock 133.

[0032] Please see Figures 2-5The clamping component 140 includes a rotating roller 141 and a rotating wheel 142. There are two rotating wheels 142. Both rotating wheels 142 and rotating roller 141 are rotatably connected to the frame 110, and both rotating wheels 142 and rotating roller 141 are tumbledly connected to the roller 134. The rotating wheel 142 is mounted on the frame 110 via a thin shaft. The roller 134 can pass through the two rotating wheels 142 from the position of the thin shaft. Specifically, the expansion core 130 is rotated out and inserted into the bobbin 150. Then the expansion core 130 is rotated back so that the roller 134 fits against the rotating roller 141 for positioning. Then the electromagnetic lock 133 is activated to pull the conical core 132 back. While tightening the expansion sleeve 131, the roller 134 is pulled to the axial position of the two rotating wheels 142. In this way, the two rotating wheels 142 and the rotating roller 141 wrap around the roller 134 and roll together to fix the bobbin 150. Here, the start switch of the electromagnetic lock 133 can be set on the frame 110 for easy operation of the corresponding electromagnetic lock 133 when picking up or putting down a bobbin 150.

[0033] Please see Figures 2-4 The expansion core component 130 also includes a limiting plate 135, which is fixedly connected to the inner end of the expansion sleeve 131. The wire drum 150 is placed on the expansion sleeve 131, so that the wire drum 150 rests against the end face of the limiting plate 135 at one end of the expansion sleeve 131. Then the wire drum 150 and the expansion core component 130 are pushed back to facilitate the quick installation and positioning of the wire drum 150.

[0034] Please see Figures 2-3 The pulley block 210 includes a slider 211, a slide rail 212, fixed pulleys 213 and movable pulleys 214. The slide rail 212 is mounted on the frame 110. The slider 211 is slidably connected to the slide rail 212, and the movable pulley 214 is rotatably connected to the slider 211. There are two fixed pulleys 213, both of which are rotatably connected to the frame 110. A wire sleeve is also mounted on the frame 110. The metal wire on the spool 150 is pulled out, passes through the wire sleeve, and then passes through the fixed pulleys 213, the movable pulley 214, and another fixed pulley 213 in sequence before being led out into an external stranding machine. The tension on the metal wire is reflected in the movable pulley 214, causing the slider 211 to slide on the slide rail 212.

[0035] Please see Figures 2-5Friction component 220 includes friction plate A221, friction plate B222, and screw 223. Friction plate A221 and friction plate B222 are slidably connected by friction. Friction plate A221 is rotatably connected to frame 110 and shaft-connected to roller 141. Screw 223 is screwed to frame 110. One end of screw 223 is rotatably connected to friction plate B222, and friction plate B222 is axially movable to frame 110. Friction component 220 also includes turntable 224, cable 225, and torsion spring 226. Turntable 224 is detachably connected to the outer end of screw 223. Both ends of cable 225 are connected to turntable 224 and slider 211, respectively. One end of torsion spring 226 is fixedly connected to frame 110, and the other end of torsion spring 226 is fixedly connected to turntable 224. The torsion spring 226 maintains the force of the turntable 224 pulling the cable 225, while the friction plates A221 and B222 are in contact. Specifically, when the tension increases, the movable pulley 214 is pulled, and the cable 225 on the slider 211 pulls the turntable 224 to rotate. The turntable 224 drives the screw 223 to rotate, causing the friction plate B222 to move axially, reducing the frictional resistance on the friction plate A221. The rotational resistance of the roller 141 decreases, and subsequently the resistance of the roller 134, the cone 132, the expansion sleeve 131, and the spool 150 decreases, reducing the tension of the metal wire. This plays a negative feedback regulation role, which can stabilize the tension. It should be noted that both friction plates A221 and B222 are... The concave structure and elasticity allow the friction force of friction plates A221 and B222 to be adjusted by adjusting the contact pressure when they are in contact. In this embodiment, since the roller 141 needs to apply resistance to the roller 134, the outer circumference of both the roller 141 and the roller 134 is axially textured to increase friction and prevent slippage. In another embodiment, the roller 141 and the roller 134 mesh with each other in a toothed manner. In this embodiment, the cable 225 is turned by an additional fixed pulley. The turntable 224 adopts the structure shown in the figure and is fixed to the screw 223 by an external screw. The circumferential position of the turntable 224 and the screw 223 can be adjusted to manually set the tension.

[0036] Please see Figure 5 A sliding rod (227) is fixedly connected to the friction plate B (222). The sliding rod (227) is axially slidably connected to the frame (110), and rotatably connected to the screw (223). The sliding rod 227 is axially slidably connected to the frame 110 and circumferentially fixed. At the same time, the sliding rod 227 is rotatably connected to the screw 223. In this embodiment, the sliding rod 227 is spline-shaped. In this way, the torque of the friction plate B222 will not be transmitted to the screw 223, and the screw 223 will not rotate, that is, it will not interfere with the axial adjustment function of the screw 223.

[0037] Please see Figure 1-4This application also provides a stranding reel for a stranding machine, including the aforementioned fixing mechanism.

[0038] The working principle of the fixing mechanism is as follows: When replacing the spool 150, the electromagnetic lock 133 remains in the pushed-out state, that is, the cone core 132 is released from the expansion sleeve 131. The expansion core 130 is deflected outward through the rotating seat 121, so that one end of the expansion sleeve 131 is separated from the clamping rotating part 140, and the spool 150 is placed on the expansion sleeve 131, so that the spool 150 rests against the end face of the limiting plate 135 at one end of the expansion sleeve 131. Then, the spool 150 and the expansion core 130 are pushed back. At this time, the roller 134 is no longer in the same position as the two rotating wheels 142. In one axial position, the roller 134 can pass over the two rotating wheels 142 and then deflect to the position of the rotating roller 141. Then, the electromagnetic lock 133 pulls the cone core 132 axially, causing the cone core 132 to tighten the expansion sleeve 131 and fix the bobbin 150. At the same time, the roller 134 moves axially to the position of the two rotating wheels 142 and is clamped by the two rotating wheels 142 and the rotating roller 141, thus completing the fixation. This method of deflecting the bobbin 150 facilitates the circular array of the entire mechanism onto the stranding reel. In this way, the bobbin 150 can be drawn from the stranding reel. The end face of the spool is installed in the fixed mechanism. During winding, the metal wire on the spool 150 passes through two fixed pulleys 213 and a movable pulley 214. When the tension increases, the movable pulley 214 is pulled, and the cable 225 on the slider 211 pulls the turntable 224 to rotate. The turntable 224 drives the screw 223 to rotate, causing the friction plate B222 to move axially, reducing the frictional resistance on the friction plate A221. The rotational resistance of the roller 141 decreases, and then the roller 134, the cone 132, the expansion sleeve 131, and the spool... The reduced resistance at 150° decreases the tension of the wire, providing a negative feedback adjustment that stabilizes the tension. In summary, the mounting assembly 100 uses the deflection of the expansion core 130 to allow one end to move away from the clamping component 140, thus facilitating the installation and fixation of the bobbin 150. This deflection method of mounting the bobbin 150 makes it easier for the entire mechanism to be arranged in a circular array on the strand. The tension assembly 200 uses the pulley block 210 to detect the tension of the wire and uses the friction component 220 to limit the rotation of the expansion core 130 in order to balance the tension.

[0039] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. A fixing mechanism, characterized in that, include The mounting assembly (100) includes a frame (110), a steering component (120), an expansion core component (130), and a clamping component (140). The steering component (120) is rotatably connected to the frame (110). One end of the expansion core component (130) is disposed on the steering component (120). The clamping component (140) is disposed on the frame (110) and movably connected to the other end of the expansion core component (130). A wire drum (150) is movably tensioned on the expansion core component (130). Tension assembly (200), the tension assembly (200) includes a pulley block (210) and a friction element (220), the pulley block (210) is disposed on the frame (110), and the pulley block (210) is movably connected to the expansion core element (130) through the friction element (220); The steering component (120) includes a pivot (121) and a bearing (122). The pivot (121) is rotatably connected to the frame (110), and the bearing (122) is disposed on the end face of the pivot (121). The expansion core component (130) includes an expansion sleeve (131), a conical core (132), and an electromagnetic lock (133). The expansion sleeve (131) is rotatably connected to the rotating seat (121) via the bearing (122). The conical core (132) is located inside the expansion sleeve (131) and movably passes through the rotating seat (121). A roller (134) is fixedly connected to one end of the conical core (132). The electromagnetic lock (133) is disposed on the rotating seat (121), and the lock core of the electromagnetic lock (133) is connected to the other end of the conical core (132). The clamping component (140) includes a rotating roller (141) and a rotating wheel (142). There are two rotating wheels (142). Both rotating wheels (142) and the rotating roller (141) are rotatably connected to the frame (110). Both rotating wheels (142) and the rotating roller (141) are tumbledly connected to the roller (134). The friction component (220) includes a friction plate A (221), a friction plate B (222), and a screw (223). The friction plate A (221) and the friction plate B (222) are slidably connected. The friction plate A (221) is rotatably connected to the frame (110). The friction plate A (221) is axially connected to the roller (141). The screw (223) is screwed to the frame (110). One end of the screw (223) is rotatably connected to the friction plate B (222). The friction plate B (222) is axially movably connected to the frame (110).

2. The fixing mechanism according to claim 1, characterized in that, The expansion core component (130) also includes a limiting disk (135), which is fixedly connected to the inner end of the expansion sleeve (131).

3. The fixing mechanism according to claim 1, characterized in that, The pulley assembly (210) includes a slider (211), a slide rail (212), a fixed pulley (213), and a movable pulley (214). The slide rail (212) is mounted on the frame (110). The slider (211) is slidably connected to the slide rail (212). The movable pulley (214) is rotatably connected to the slider (211). There are two fixed pulleys (213), and both fixed pulleys (213) are rotatably connected to the frame (110).

4. A fixing mechanism according to claim 3, characterized in that, The friction element (220) also includes a turntable (224), a cable (225), and a torsion spring (226). The turntable (224) is detachably connected to the outer end of the screw (223). The two ends of the cable (225) are respectively connected to the turntable (224) and the slider (211). One end of the torsion spring (226) is fixedly connected to the frame (110), and the other end of the torsion spring (226) is fixedly connected to the turntable (224).

5. A fixing mechanism according to claim 4, characterized in that, A slide rod (227) is fixedly connected to the friction plate B (222). The slide rod (227) is axially slidably connected to the frame (110). The slide rod (227) is rotatably connected to the screw (223).

6. A stranding reel for a stranding machine, characterized in that, Includes the fixing mechanism described in any one of claims 1-4.

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