Abrasion-resistant yarn roving machine with snap-on assembly

Abstract

This utility model discloses a wear-resistant yarn roving frame with a locking component, relating to the field of roving frame technology. The utility model includes a frame, a twisting device, and a winding device. A locking mechanism is provided on one side of the upper part of the frame for quickly fixing broken yarn. The locking mechanism includes a clamping component comprising a fixed plate fixedly installed on one side of the upper part of the frame, with a rotating disk rotatably mounted at the bottom of the fixed plate. Through the rapid response of the clamping component, a servo motor can be activated at the instant of yarn breakage, causing the drive gear to drive the driven gear and the rotating disk to rotate. This forces multiple clamping rods to synchronously retract towards the center along the slide groove. Instantaneous clamping of the yarn is achieved through the cooperation of the drive block and the drive groove. This component can quickly fix the yarn end, effectively preventing loosening of the twisting zone caused by yarn rebound, ensuring that the twisting force of the rollers on the yarn remains stable during twisting, thereby avoiding yarn thickness problems caused by uneven twisting.

Description

Technical Field

[0001] This utility model relates to the field of roving frame technology, specifically a wear-resistant yarn roving frame with a locking assembly. Background Technology

[0002] The roving frame is mainly used to process combed fiber slivers (green slivers) into rovings with a certain twist and strength, in preparation for the subsequent worsted spinning process.

[0003] Referring to the patent document: Patent Publication No. CN215328526U, Patent Publication Date 2021-12-28, a roving frame for cotton yarn processing is disclosed, including an electronic control device for controlling winding, and several frame devices for supporting and guiding cotton yarn. A winding device for rotating the cotton yarn is installed within the frame devices, and a doffing device for exposing and placing spindles is provided below the winding device. This roving frame for cotton yarn processing, through its independent winding configuration and separate control and drive, ensures that cotton yarn is wound independently as needed; the independent doffing configuration, combined with independent winding, facilitates doffing replacement and improves operational convenience; and the use of multiple servo motors simplifies the gear transmission structure, making manufacturing and maintenance easier.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] In existing roving frames, when producing yarn, the twisted yarn enters the winding assembly through the guide wire inlet and is wound onto the yarn bobbin. However, during the winding process, the yarn is relatively fragile and prone to breakage. Traditional methods cannot quickly lock and fix the yarn end when it breaks, causing the yarn end in the twisting zone to loosen. This results in insufficient twisting strength of the yarn in the rollers when twisting continues after the yarn end is reconnected, leading to uneven thickness of the twisted yarn.

[0006] Therefore, this utility model provides a wear-resistant yarn roving frame with a locking component. Utility Model Content

[0007] To address the problem that existing roving frames lack a mechanism for quickly engaging yarn ends when yarn breaks, leading to loose yarn in the twisting zone and uneven yarn thickness after reconnection and twisting, the purpose of this invention is to provide a wear-resistant yarn roving frame with an engaging component.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant yarn roving frame with a locking assembly, comprising a frame, a twisting device, and a winding device, wherein a locking mechanism is provided on one side of the upper part of the frame for quickly fixing broken yarn, the locking mechanism comprising:

[0009] The clamping assembly includes a fixed plate fixedly installed on one side of the upper part of the frame, a rotating plate rotatably installed at the bottom of the fixed plate, a driven gear fixedly installed on the outer side of the rotating plate, a drive assembly provided on one side of the driven gear, multiple clamping rods arranged in a ring array on the upper part of the fixed plate, a drive block fixedly installed at the bottom of each clamping rod, and multiple evenly distributed drive slots opened on the upper part of the rotating plate, with multiple drive blocks slidably locked inside the drive slots;

[0010] The limiting component, located at the top center of the frame, is used for sensing and conveying the yarn.

[0011] Preferably, the limiting component includes a limiting frame fixedly installed at the middle of the top of the frame, a sensing roller rotatably installed at the lower part of the limiting frame, a movable frame slidably mounted at the upper part of the limiting frame, a movable roller rotatably installed at the middle of the movable frame to cooperate with the sensing roller, and a plurality of equally spaced springs fixedly installed at the top of the movable frame, with the tops of the plurality of springs all fixedly installed on the upper surface of the middle part of the limiting frame.

[0012] Preferably, a guide ring is fixedly installed at the top center of the fixed plate, and the upper parts of multiple clamping rods are slidably locked in the middle of the guide ring.

[0013] Preferably, the upper part of the fixed plate is provided with a sliding groove, and the lower sides of the multiple clamping rods are fixedly installed with sliders, and the multiple sliders and clamping rods are slidably engaged inside the sliding groove.

[0014] Preferably, the drive assembly includes a servo motor fixedly mounted on one side of the upper part of the frame, and a drive gear is fixedly mounted on the drive end of the servo motor, with the drive gear and the driven gear meshing with each other.

[0015] Preferably, the top of the movable frame is fixedly installed with multiple telescopic rods that are evenly spaced, and the tops of the multiple telescopic rods are all fixedly installed on the upper surface of the middle part of the limiting frame.

[0016] Beneficial effects

[0017] This invention provides a wear-resistant yarn roving frame with a locking assembly. Compared with the prior art, it has the following advantages:

[0018] 1. This application utilizes the rapid response of the clamping assembly to activate the servo motor at the moment of yarn breakage, causing the drive gear to rotate and drive the driven gear and rotating disk to rotate. This forces multiple clamping rods to converge synchronously towards the center along the slide groove. The instantaneous clamping of the yarn is achieved through the cooperation of the drive block and the drive groove. This assembly can quickly fix the yarn end, effectively preventing the loosening of the twisting zone caused by yarn rebound, and ensuring that the twisting force of the roller on the yarn remains stable during twisting, thereby avoiding the problem of yarn thickness caused by uneven twisting.

[0019] 2. This application uses the elastic cooperation between the sensing roller and the moving roller to monitor the change in yarn tension in real time. When a yarn breakage occurs, the moving roller moves upward rapidly as the yarn tension disappears to trigger a signal. At the same time, the spring's reset action prevents the yarn from rebounding instantly under friction, thus extending the clamping time of the clamping assembly. This not only improves the sensitivity of yarn breakage detection but also enhances the reliability of the clamping assembly in clamping and fixing the yarn, making it particularly suitable for the production of high-count, fragile yarns. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the frame of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the clamping component after disassembly in this utility model.

[0023] Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0024] In the diagram: 1. Frame; 11. Twisting device; 12. Winding device; 2. Clamping mechanism; 21. Clamping assembly; 211. Fixed plate; 212. Rotating plate; 213. Driven gear; 214. Servo motor; 215. Drive gear; 216. Clamping rod; 2161. Slide groove; 217. Slider; 218. Drive block; 2181. Drive groove; 219. Guide ring; 22. Limiting assembly; 221. Limiting frame; 222. Induction roller; 223. Moving frame; 224. Moving roller; 225. Spring; 226. Telescopic rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a wear-resistant yarn roving frame with a locking assembly, including a frame 1, a twisting device 11, and a winding device 12. The twisting device 11 is a multi-roller drafting and twisting structure, used for yarn twisting requirements. A locking mechanism 2 is provided on one side of the upper part of the frame 1 for quickly fixing broken yarn. The locking mechanism 2 includes:

[0027] The clamping assembly 21 includes a fixed plate 211 fixedly installed on one side of the upper part of the frame 1. A rotating plate 212 is rotatably installed at the bottom end of the fixed plate 211. A driven gear 213 is fixedly installed on the outer side of the rotating plate 212. A drive assembly is provided on one side of the driven gear 213. A plurality of clamping rods 216 arranged in a ring array are provided on the upper part of the fixed plate 211. The clamping end faces of the plurality of clamping rods 216 are inlaid with wear-resistant rubber blocks. The surface of the rubber blocks is provided with fine anti-slip texture, which can ensure the clamping stability and avoid damage to the yarn. A drive block 218 is fixedly installed at the bottom end of the plurality of clamping rods 216. A plurality of evenly distributed drive grooves 2181 are provided on the upper part of the rotating plate 212. The plurality of drive blocks 218 are slidably locked inside the drive grooves 2181. The drive grooves 2181 have an arc-shaped structure and can drive the clamping rods 216 to slide along the slide grooves 2161 through the drive grooves 2181 when the rotating plate 212 rotates.

[0028] The limiting component 22 is located at the top center of the frame 1 and is used for sensing and conveying the yarn.

[0029] The limiting component 22 includes a limiting frame 221 fixedly installed at the top center of the frame 1. A sensing roller 222 is rotatably installed at the lower part of the limiting frame 221. A distributed pressure sensor is embedded in the surface of the sensing roller 222, which can monitor the contact pressure between the yarn and the roller surface in real time and then calculate the yarn conveying tension. A movable frame 223 is slidably mounted on the upper part of the limiting frame 221. A movable roller 224 that works in conjunction with the sensing roller 222 is rotatably installed in the middle of the movable frame 223. A plurality of equally spaced springs 225 are fixedly installed at the top of the movable frame 223. The tops of the plurality of springs 225 are all fixedly installed on the upper surface of the middle part of the limiting frame 221. When the yarn breaks, the springs 225 can slow down the time of yarn rebound, ensuring that the yarn end located at the twisting end can be clamped and fixed by the clamping rod 216.

[0030] A guide ring 219 is fixedly installed at the top center of the fixed plate 211. The inner wall of the plate is coated with polytetrafluoroethylene material to reduce the frictional resistance when the yarn passes through. The upper parts of multiple clamping rods 216 are slidably locked in the middle of the guide ring 219.

[0031] The upper part of the fixed plate 211 is provided with a sliding groove 2161, and sliders 217 are fixedly installed on both sides of the lower part of multiple clamping rods 216. The multiple sliders 217 and the clamping rods 216 are slidably locked inside the sliding groove 2161. By setting the sliding groove 2161, the clamping rods 216 can be limited, ensuring that the clamping rods 216 can move synchronously relative to each other along the sliding groove 2161 under the rotation of the rotating plate 212, and clamp and fix the yarn. With the setting of the sliders 217, the clamping rods 216 can be vertically limited to ensure that the clamping rods 216 can only slide within the sliding groove 2161, thus ensuring the clamping stability of the yarn.

[0032] The drive assembly includes a servo motor 214 fixedly mounted on one side of the upper part of the frame 1. The drive end of the servo motor 214 is fixedly mounted with a drive gear 215. The drive gear 215 and the driven gear 213 are meshed and connected to each other. The servo motor 214 is model IS17P-01 and has a high-resolution encoder. At the same time, the controller is electrically connected to the control system of the roving frame for power supply and control.

[0033] Multiple telescopic rods 226 are fixedly installed at the top of the movable frame 223. The tops of the multiple telescopic rods 226 are all fixedly installed on the upper surface of the middle part of the limiting frame 221. By setting the telescopic rods 226, the up and down movement of the movable frame 223 can be limited, ensuring that the movable roller 224 and the sensing roller 222 are always on the same axis, thereby reducing the conveying error and avoiding large frictional losses in yarn conveying.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] During operation, the raw sliver is twisted into a finer yarn by the twisting device 11. The yarn first passes between the induction roller 222 and the moving roller 224, and after passing through the middle of the guide ring 219, it is wound onto the yarn roller by the winding device 12 to complete the twisting process of the roving. During the yarn conveying process by the lower induction roller 222, the tension of the yarn is detected.

[0036] When the yarn breaks, the tension drops instantly. At this time, the sensing roller 222 transmits the information to the control system of the roving frame. The control system controls the servo motor 214 to start, which drives the drive gear 215 to rotate, causing the meshing driven gear 213 to rotate, which in turn drives the rotating disk 212 to rotate. Since the bottom end of the clamping rod 216 is slidably locked in the drive groove 2181 on the rotating disk 212, when the rotating disk 212 rotates, it will drive multiple clamping rods 216 to move synchronously along the slide groove 2161 toward the center to quickly clamp and fix the yarn located in the middle of the guide ring 219. This prevents the yarn from breaking and rebounding, which would cause the yarn in the twisting device 11 to loosen, resulting in insufficient twisting strength of the roller and uneven yarn thickness.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant yarn roving frame with a locking assembly, comprising a frame (1), a twisting device (11), and a winding device (12), characterized in that: The upper side of the frame (1) is provided with a locking mechanism (2) for quickly fixing broken yarn. The locking mechanism (2) includes: The clamping assembly (21) includes a fixed disk (211) fixedly installed on one side of the upper part of the frame (1), a rotating disk (212) rotatably installed at the bottom end of the fixed disk (211), a driven gear (213) fixedly installed on the outer side of the rotating disk (212), a drive assembly provided on one side of the driven gear (213), a plurality of clamping rods (216) arranged in a ring array on the upper part of the fixed disk (211), a drive block (218) fixedly installed at the bottom end of each of the plurality of clamping rods (216), a plurality of evenly distributed drive grooves (2181) opened on the upper part of the rotating disk (212), and a plurality of drive blocks (218) slidably locked inside the drive grooves (2181); A limiting component (22) is located at the top center of the frame (1) and is used for sensing and conveying the yarn.

2. The wear-resistant yarn roving frame with a locking assembly according to claim 1, characterized in that: The limiting component (22) includes a limiting frame (221) fixedly installed at the middle of the top of the frame (1). A sensing roller (222) is rotatably installed at the lower part of the limiting frame (221). A movable frame (223) is slidably mounted on the upper part of the limiting frame (221). A movable roller (224) that cooperates with the sensing roller (222) is rotatably installed at the middle of the movable frame (223). A plurality of equally spaced springs (225) are fixedly installed at the top of the movable frame (223). The tops of the plurality of springs (225) are all fixedly installed on the upper surface of the middle part of the limiting frame (221).

3. The wear-resistant yarn roving frame with a locking assembly according to claim 1, characterized in that: A guide ring (219) is fixedly installed at the top center of the fixed plate (211), and the upper parts of multiple clamping rods (216) are slidably locked in the middle of the guide ring (219).

4. The wear-resistant yarn roving frame with a locking assembly according to claim 1, characterized in that: The upper part of the fixed plate (211) is provided with a sliding groove (2161), and the lower sides of the multiple clamping rods (216) are fixedly installed with sliders (217), and the multiple sliders (217) and the clamping rods (216) are slidably locked inside the sliding groove (2161).

5. A wear-resistant yarn roving frame with a locking assembly according to claim 1, characterized in that: The drive assembly includes a servo motor (214) fixedly mounted on one side of the upper part of the frame (1). The drive end of the servo motor (214) is fixedly mounted with a drive gear (215), and the drive gear (215) and the driven gear (213) are meshed and connected to each other.

6. A wear-resistant yarn roving frame with a locking assembly according to claim 2, characterized in that: The top of the movable frame (223) is fixedly installed with multiple telescopic rods (226) that are evenly spaced. The tops of the multiple telescopic rods (226) are all fixedly installed on the upper surface of the middle part of the limiting frame (221).

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