A yarn tailing device
By using a yarn tail retention device to retain yarn tails on the winding machine, the problem of not being able to connect the yarn in a timely manner after use is solved, thus achieving continuity and efficiency improvement in textile production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HANLIN TEXTILE MACHINERY CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-06-12
AI Technical Summary
Existing winding machines cannot detect the yarn tail position in time after the yarn has been used up, resulting in reduced spinning efficiency or fabric scrap, which is especially obvious in semi-automatic equipment.
A yarn tail retention device was designed, including a cover, a yarn hanging assembly, and a driving device. By driving the extension and retraction of the yarn hanging column, the yarn position is restricted during the yarn winding process and the restriction is released when appropriate, leaving a yarn tail for subsequent connection.
It achieves continuity in the yarn winding process, improves the continuity of textile production, and avoids fabric scrap caused by yarn connection delays.
Smart Images
Figure CN224350122U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of textile equipment accessories technology, and in particular to a yarn tail retaining device. Background Technology
[0002] A grooved drum winding machine is a machine used in the textile industry for winding yarn. Simply put, it is a device that gathers multiple small rolls of yarn into a large roll. By setting the grooved drum and the bobbin to contact each other, the rotation of the grooved drum can drive the rotation of the bobbin, thereby realizing the processing of winding the yarn onto the bobbin.
[0003] During the yarn winding process, the yarn tail is fixed to the bobbin beforehand. When the bobbin is rotating, the yarn is wound onto the bobbin. The guide groove on the bobbin guides the yarn to move back and forth along the axis of the bobbin, thus ensuring that it is wound evenly onto the bobbin.
[0004] In the aforementioned winding process, the yarn head is located on the circumferential surface of the entire roll of yarn, while the yarn tail is pressed inside the yarn. When the fabric is woven, the automatic weaving equipment stops after detecting that a roll of yarn has been used up. The operator replaces the yarn and connects the yarn head of the newly replaced roll to the yarn tail of the previous roll, thus enabling continuous weaving. This inevitably reduces the efficiency of weaving. If semi-automatic weaving equipment is used, since it does not have a short yarn detection function, it will cause the fabric to be scrapped if the yarn is not replenished in time after a roll of yarn is used up.
[0005] However, the yarn rolls processed by current winding machines can only find the yarn end after the entire roll of yarn has been used up, and can only then be connected to the yarn beginning of the next roll, resulting in poor performance.
[0006] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content
[0007] The purpose of this invention is to provide a yarn tail retaining device to overcome the defects mentioned in the background art.
[0008] A yarn tail retaining device includes a frame, a grooved cylinder rotatably connected to the frame, and a bobbin in contact with the circumferential surface of the grooved cylinder. A motor, driven by the grooved cylinder, is also mounted on the frame to drive the grooved cylinder to rotate and thus rotate the bobbin. The frame is equipped with:
[0009] A cover is disposed on the outer side of the circumferential surface of the grooved cylinder, covering the grooved cylinder portion, and defining a gap space between the cover and the circumferential surface of the grooved cylinder.
[0010] A wire hanging assembly, the wire hanging assembly including a wire hanging post that protrudes or retracts along the surface of the cover toward the surface of the groove cylinder;
[0011] A driving device is directly or indirectly connected to the hanging wire assembly to drive the hanging wire post to protrude out of or retract from the surface of the cover away from the groove cylinder.
[0012] Furthermore, the cover shown includes a bottom, which is fixedly installed. Both ends of the bottom along its length are respectively formed with upwardly protruding blocking portions. The blocking portions are provided with an arc shape that matches the circumferential surface of the groove cylinder and covers both ends of the groove cylinder. A clearance space for yarn to pass through is provided between the two blocking portions. A yarn hanging assembly is installed on any one of the blocking portions, and a yarn hanging hole is opened on the blocking portion for the yarn hanging post to pass through.
[0013] Furthermore, the hanging assembly also includes a spring piece disposed inside the shielding part, with its lower end fixedly disposed and its other end extending upward toward the shielding part. The hanging post is formed on the extended end of the spring piece. The driving device is connected to the spring piece for driving the spring piece to elastically deform toward the groove cylinder, causing the hanging post to retract along the hanging hole and along the surface of the shielding part.
[0014] Furthermore, the spring clip includes, from bottom to top, the following components:
[0015] The mounting part is fixedly mounted on the cover;
[0016] An elastic portion, the elastic portion extending upward along the inner surface contour of the shielding portion;
[0017] The hanging part is fixedly installed on the hanging part.
[0018] Furthermore, the elastic part and / or the hanging part are attached to the inner wall of the shielding part, and the hanging post extends along the hanging hole and protrudes from the outer surface of the shielding part.
[0019] Furthermore, the driving device is fixedly mounted on the outer surface of the shielding part, and the driving device includes a power source and a retractable driving rod driven by the power source, the driving rod passing through the shielding part and abutting against the elastic part.
[0020] Optionally, the elastic part and the hanging part are spaced apart from the inner wall of the shielding part, and the hanging post is retracted into the shielding part.
[0021] Furthermore, the driving device is composed of an electromagnet, which is fixedly mounted on the outer surface of the shielding part and magnetically connected to the spring.
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] During yarn winding, the motor drives the grooved drum to rotate, which in turn rotates the bobbin. Once one end of the yarn is mounted on the bobbin, the motor winds the yarn onto it. Before winding, the drive mechanism activates, causing the yarn guide post to protrude from the surface of the cover. This guide post restricts the yarn, keeping it confined to one side of the guide post. The yarn is then fixed at one end of the bobbin. After a predetermined number of turns, the drive mechanism activates again, causing the guide post to retract from the support surface, releasing the restriction on the yarn. This allows the yarn to be evenly wound onto the bobbin under the guidance of the guide grooves on the grooved drum, completing the yarn winding process. At this point, the yarn tail is separated from the yarn roll, leaving a pre-existing yarn tail for easy connection to the beginning of the next yarn roll, thus improving the continuity of subsequent production.
[0024] This utility model provides a yarn tail retention device applied to a winding machine. During the yarn winding process, the yarn tail can be retained in advance and wound around one end of the yarn spool. Then, the yarn is wound to form a complete yarn roll, and the yarn tail is separated from the yarn roll. This allows the yarn tail and yarn head to be easily separated. In subsequent production processes, the yarn tail of one yarn roll can be connected to the yarn head of another yarn roll, thereby improving the continuity of subsequent production.
[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0026] Figure 1 This is a front view of the present invention.
[0027] Figure 2 This is a schematic diagram of the retracted state of the hanging post of this utility model.
[0028] Figure 3 This is a schematic diagram of the hanging post in the extended state in this utility model.
[0029] Figure 4 This is a schematic diagram of the structure of the cover in this utility model.
[0030] Figure 5This is a schematic diagram of the hanging wire assembly in this utility model. Detailed Implementation
[0031] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.
[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0033] Furthermore, the use of terms such as "first" and "second" in the embodiments of this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0034] This utility model provides a yarn tail retention device applied to a winding machine. During the yarn winding process, the yarn tail can be retained in advance and wound around one end of the bobbin 120. Then, the yarn is wound to form a complete yarn roll, and the yarn tail is separated from the yarn roll. Thus, the yarn tail and yarn head can be easily separated. In subsequent production processes, the yarn tail of one yarn roll can be connected to the yarn head of another yarn roll, thereby improving the continuity of subsequent production.
[0035] Specifically, such as Figure 1-5 As shown, this embodiment of the present invention provides a yarn tail retaining device, including a frame 100, a grooved cylinder 110 rotatably connected to the frame 100, and a bobbin 120 disconnected from the circumferential surface of the grooved cylinder 110. A motor 130, which is pulsatorically connected to the grooved cylinder 110, is also provided on the frame 100 to drive the grooved cylinder 110 to rotate and thus rotate the bobbin 120. Additionally, a cover 200, a yarn hanging assembly 300, and a driving device 400 are also provided on the frame 100. The cover 200 is disposed on the outer side of the circumferential surface of the trough cylinder 110, covering part of the trough cylinder 110, and defining a gap space between the cover 200 and the circumferential surface of the trough cylinder 110; the hanging wire assembly 300 includes a hanging wire post 310 that protrudes or retracts along the surface of the cover 200 toward the surface away from the surface of the trough cylinder 110; the driving device 400 is directly or indirectly connected to the hanging wire assembly 300 to drive the hanging wire post 310 to protrude or retract onto the surface of the cover 200 away from the surface of the trough cylinder 110.
[0036] During the yarn winding process, the motor 130 drives the grooved drum 110 to rotate, thereby driving the bobbin 120 to rotate. When one end of the yarn is mounted on the bobbin 120, the yarn can be wound onto the bobbin 120 under the drive of the motor 130. Before winding, the drive device 400 actuates, causing the yarn-holding post 310 to protrude from the surface of the cover 200. At this time, the yarn-holding post 310 restricts and blocks the yarn, so that the yarn can only be on one side of the yarn-holding post 310. At this time, the position of the yarn wound on the bobbin 120 is also fixed at one end of the bobbin 120. After winding a predetermined number of turns, the drive device 400 actuates again, causing the yarn-holding post 310 to retract from the surface of the support, thereby releasing the restriction on the yarn. This allows the yarn to be evenly wound on the bobbin 120 under the guidance of the guide groove on the grooved bobbin 110, thus completing the winding of the yarn roll. At this time, the yarn tail can be separated from the yarn roll, thus reserving the yarn tail for easy connection with the yarn head of the next yarn roll, thereby improving the continuity of subsequent production.
[0037] In this embodiment, as Figure 1 , 4 As shown, the cover 200 includes a bottom 201, which is fixedly mounted on the frame 100. In other embodiments, the bottom 201 can also be fixedly mounted on the frame of a textile machine. The two ends of the bottom 201 along its length are respectively formed with upwardly protruding blocking portions 202. The blocking portions 202 are provided with an arc shape that matches the circumferential surface of the groove cylinder 110 and cover the two ends of the groove cylinder 110. A clearance space for yarn to pass through is provided between the two blocking portions 202. The yarn hanging assembly 300 is disposed on any one of the blocking portions 202, and a yarn hanging hole 203 is provided on the blocking portion 202 for the yarn hanging post 310 to pass through.
[0038] The cover 200 provided by this technical solution can protect the yarn during the winding process, preventing yarn jumping and affecting the winding effect.
[0039] In this embodiment, as Figure 2-5 As shown, the hanging assembly 300 also includes a spring piece 320, which is disposed inside the shielding part. The lower end of the spring piece 320 is fixedly disposed, and the other end extends upward toward the shielding part. The hanging post 310 is formed on the extended end of the spring piece 320. The driving device 400 is connected to the spring piece 320 for driving the spring piece 320 to elastically deform toward the groove cylinder 110 so that the hanging post 310 retracts along the hanging hole 203 along the surface of the shielding part.
[0040] During the yarn winding process, the drive device 400 applies a force to the spring 320, causing it to elastically deform. This allows the spring 320 to move towards the blocking part or the original blocking part 202, thereby causing the yarn hanging post 310 to extend or retract. This enables the interference restriction and release actions on the yarn.
[0041] In this embodiment, an example of the specific structure of the spring 320 is given, such as... Figure 5 As shown, the spring 320 includes, from bottom to top, a mounting portion 321, an elastic portion 322, and a hanging portion 323. Specifically, the mounting portion 321 is fixedly mounted on the cover 200; the elastic portion 322 extends upward along the inner surface contour of the shielding portion; and the hanging post 310 is fixedly mounted on the hanging portion 323. By setting the elastic portion 322 to extend along the inner wall contour of the shielding portion, the elastic deformation capability of the elastic portion 322 can be enhanced, enabling effective and rapid operation.
[0042] In this embodiment, the elastic part 322 and / or the hanging part 323 are attached to the inner wall of the shielding part, and the hanging post 310 extends along the hanging hole 203 and protrudes from the outer surface of the shielding part. At the same time, the driving device 400 is fixedly mounted on the outer surface of the shielding part, and the driving device 400 includes a power source and a retractable driving rod driven by the power source. The driving rod passes through the shielding part and abuts against the elastic part 322.
[0043] In this embodiment, the driving device 400 is a push-pull electromagnet, including a coil and a driving rod. After the coil is energized, the driving rod extends, thereby pushing the elastic part 322 away from the blocking part, which in turn causes the hanging post 310 to retract, thereby releasing the restriction on the yarn. It is known that when the winding begins, the hanging post 310 extends along the hanging hole 203 under the action of the elastic part 322, and then protrudes on the surface of the blocking part to restrict the yarn, so that the yarn is on one side of the hanging post 310 during the winding process, so that the yarn tail can be wound at one end of the yarn spool 120. After the yarn tail is wound to a predetermined number of turns, the coil is energized, causing the driving rod to extend and push the elastic part 322 away from the blocking part. At this time, the hanging post 310 retracts along the hanging hole 203, releasing the restriction on the yarn. The yarn can be evenly wound on the yarn spool 120 under the guidance of the guide groove of the grooved cylinder 110, and is spaced apart from the yarn tail.
[0044] In other embodiments, the elastic part 322 and the hanging part 323 are spaced apart from each other from the inner wall of the shielding part, and the hanging post 310 is retracted into the shielding part. Meanwhile, the driving device 400 is composed of an electromagnet, which is fixedly mounted on the outer surface of the shielding part and magnetically connected to the spring piece 320.
[0045] In other words, when it is necessary to restrict the yarn tail, the electromagnet is energized, thereby generating a magnetic force. This magnetic force attracts the elastic part 322, causing it to elastically deform and swing towards the blocking part. At this time, the hanging post 310 extends along the hanging hole 203 to restrict the yarn. After the yarn tail is wound to a predetermined number of turns, the electromagnet is de-energized. At this time, the hanging post 310 retracts under the action of the elastic part 322, releasing the restriction on the yarn, so that the yarn can be evenly wound onto the yarn bobbin under the guidance of the guide groove of the grooved cylinder 110.
[0046] For those skilled in the art, various other corresponding changes and modifications can be obtained based on the structure and principles disclosed in this utility model, and all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A yarn tail retaining device, comprising a frame, a grooved cylinder rotatably connected to the frame, and a bobbin in contact with the circumferential surface of the grooved cylinder, wherein a motor is further disposed on the frame and driven to rotate the grooved cylinder and thus rotate the bobbin, characterized in that, The frame is equipped with: A cover is disposed on the outer side of the circumferential surface of the grooved cylinder, covering the grooved cylinder portion, and defining a gap space between the cover and the circumferential surface of the grooved cylinder. A wire hanging assembly, the wire hanging assembly including a wire hanging post that protrudes or retracts along the surface of the cover toward the surface of the groove cylinder; A driving device is directly or indirectly connected to the hanging wire assembly to drive the hanging wire post to protrude out of or retract from the surface of the cover away from the groove cylinder.
2. The yarn tail retaining device according to claim 1, characterized in that, The cover shown includes a bottom, which is fixedly installed. At both ends of the bottom along its length, there are upwardly protruding shielding portions. The shielding portions are provided with an arc shape that matches the circumferential surface of the grooved cylinder and cover both ends of the grooved cylinder. A clearance space is provided between the two shielding portions for the yarn to pass through. A yarn hanging assembly is installed on any one of the shielding portions, and a yarn hanging hole is provided on the shielding portion for the yarn hanging post to pass through.
3. The yarn tail retaining device according to claim 2, characterized in that, The hanging assembly also includes a spring piece, which is disposed inside the shielding part, with its lower end fixedly disposed and its other end extending upward toward the shielding part. The hanging post is formed on the extended end of the spring piece. The driving device is connected to the spring piece for driving the spring piece to elastically deform toward the groove cylinder, causing the hanging post to retract along the hanging hole and along the surface of the shielding part.
4. The yarn tail retaining device according to claim 3, characterized in that, The spring clip includes, from bottom to top, a mounting part, which is fixedly mounted on the cover; An elastic portion, the elastic portion extending upward along the inner surface contour of the shielding portion; The hanging part is fixedly installed on the hanging part.
5. A yarn tail retaining device according to claim 4, characterized in that, The elastic part and / or the hanging part are attached to the inner wall of the shielding part, and the hanging post extends along the hanging hole and protrudes from the outer surface of the shielding part.
6. The yarn tail retaining device according to claim 5, characterized in that, The driving device is fixedly mounted on the outer surface of the shielding part, and the driving device includes a power source and a retractable driving rod driven by the power source. The driving rod passes through the shielding part and abuts against the elastic part.
7. A yarn tail retaining device according to claim 4, characterized in that, The elastic part and the hanging part are spaced apart from each other from the inner wall of the shielding part, and the hanging post is retracted into the shielding part.
8. A yarn tail retaining device according to claim 7, characterized in that, The driving device is composed of an electromagnet, which is fixedly mounted on the outer surface of the shield and magnetically connected to the spring.