A yarn splicing device

By designing the splicing, combing, yarn exiting, and yarn taking-up mechanisms of the yarn splicing device, and utilizing airflow and cutting components to handle yarn ends, the problem of clogging caused by yarn end accumulation was solved, thereby improving equipment operating efficiency and yarn quality.

CN224547727UActive Publication Date: 2026-07-24新疆金鑫昱纺织有限责任公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
新疆金鑫昱纺织有限责任公司
Filing Date
2025-09-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional yarn splicing devices are prone to blockage due to yarn ends accumulating during use, requiring frequent manual cleaning and affecting equipment operating efficiency.

Method used

A yarn splicing device was designed, which includes splicing, combing, yarn delivery and take-up mechanisms. It uses untwisting nozzles and twisting nozzles to blow away the yarn ends, a cutting component to remove the excess part, and an air nozzle to blow away the yarn ends, preventing accumulation and reducing manual cleaning and maintenance.

Benefits of technology

It effectively prevents yarn ends from accumulating, reduces the number of manual cleaning operations, improves equipment utilization, and ensures yarn continuity and quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224547727U_ABST
    Figure CN224547727U_ABST
Patent Text Reader

Abstract

The utility model relates to a twisted joint technical field discloses a yarn twisted joint device, including work table, the top of work table is provided with twisted joint mechanism, the bottom fixed connection of work table has two supports, the bottom of work table is provided with carding mechanism, two the bottom fixed connection of support all has same bottom plate, the top of bottom plate is provided with outgoing line mechanism, the top fixed connection of work table has high platform, the top of high platform is provided with take -up mechanism, the twisted joint mechanism includes shell, the bottom fixed connection of shell in work table's top, the inner wall fixed connection of shell has lower cavity. In the utility model, the isolation board and blade cut the excess part, the twist nozzle blows the thread end, and then by the twist nozzle blows the entanglement, then carries out the take -up operation, and the excess thread end is blown from the cavity by the air nozzle and is scattered, prevents the gathering and causes the blockage, reduces the manual cleaning maintenance frequency, improves the equipment utilization.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of splicing technology, and in particular to a yarn splicing device. Background Technology

[0002] In the spinning, winding, and weaving processes, yarn breakage or the need to splice yarn when the bobbins are used up is unavoidable. However, the traditional manual knotting method has obvious drawbacks. Knots are formed at the joints, affecting the smoothness and appearance of the fabric surface. Furthermore, the knots are weak points in the yarn, resulting in low strength and subsequent breakage. The machine has poor throughput, and the knots can get stuck in the machine during subsequent processes, causing downtime. Therefore, yarn splicing has become particularly important. Yarn splicing devices were invented to eliminate these drawbacks and are suitable for splicing yarn after breakage.

[0003] A yarn splicing device is a piece of equipment used in textile production to connect the ends of two yarns. Its core purpose is to achieve knotless yarn connection by simulating the twisting principle in the spinning process, thereby ensuring the continuity, neat appearance, and mechanical properties of the yarn, while also ensuring the strength of the splice and reducing fabric defects. However, there are some problems in the use of yarn splicing devices. Because yarn splicing requires trimming at the ends, the leftover yarn ends accumulate in the cavity, causing blockage. This leads to a decline in splicing quality after long-term operation, requiring timely manual cleaning and relying on manual operation. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a yarn splicing device, which aims to improve the heat dissipation problem in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a yarn splicing device, including a workbench, a splicing mechanism provided on the top of the workbench, two supports fixedly connected to the bottom of the workbench, a combing mechanism provided at the bottom of the workbench, the same base plate fixedly connected to the bottom of both supports, a yarn exiting mechanism provided on the top of the base plate, a raised platform fixedly connected to the top of the workbench, and a yarn take-up mechanism provided on the top of the raised platform; The splicing mechanism includes a housing, the bottom of which is fixedly connected to the top of the workbench. A lower cavity is fixedly connected to the inner wall of the housing. Two hinges are fixedly connected to the left side of the outer wall of the housing. A flip cover is fixedly connected to the outer wall of the two hinges. An upper cavity cover is fixedly connected to the inner wall of the flip cover. Multiple untwisting nozzles are fixedly connected to the right side of the inner wall of the lower cavity. Multiple twisting nozzles are fixedly connected to the left side of the inner wall of the lower cavity. Cylinders are fixedly connected to both sides of the housing. An air nozzle is fixedly connected to the front side of the platform. A cutting assembly is provided on the inner wall of the lower cavity.

[0006] As a further description of the above technical solution: The combing mechanism includes a support arm 1, the rear side of which is fixedly connected to the front side of the workbench. A turntable is rotatably connected to the outer wall of the support arm 1, and a wire groove is formed on the outer wall of the turntable. A support arm 2 is fixedly connected to the bottom of the workbench. A wheel is rotatably connected to the outer wall of the support arm 2, and a wire groove is formed on the outer wall of the wheel. A positioning component is provided at the bottom of the support arm 2.

[0007] As a further description of the above technical solution: The cable exit mechanism includes a protective barrel, the bottom of which is fixedly connected to the top of a base plate. An adapter plate is fixedly connected to the inner wall of the protective barrel, and a winding shaft is slidably connected to the top of the adapter plate. A limit ring is fixedly connected to the outer wall of the protective barrel.

[0008] As a further description of the above technical solution: The take-up mechanism includes a support arm three, the bottom of which is fixedly connected to the top of the platform. A roller is rotatably connected to the outer wall of the support arm three, and a rotating groove is opened on the outer wall of the roller. A support arm four is fixedly connected to the top of the platform, and a trapezoidal spool is rotatably connected to the outer wall of the support arm four.

[0009] As a further description of the above technical solution: The cutting assembly includes two partition plates, the tops of which are fixedly connected to the inner wall of the upper cavity cover, and two blades are fixedly connected to the inner wall of the upper cavity cover.

[0010] As a further description of the above technical solution: The positioning component includes an outer ring, the top of which is fixedly connected to the bottom of the second support arm, and a positioning hole is provided on the outer wall of the outer ring.

[0011] As a further description of the above technical solution: Two baffles are fixedly connected to the top of the base plate, and a limiting column is fixedly connected to the front side of the platform.

[0012] As a further description of the above technical solution: The workbench has a rotating groove on its front side, and a control panel is fixedly connected to the top of the workbench.

[0013] This utility model has the following beneficial effects: In this invention, when splicing is required, the yarn is placed in the lower cavity, and the flap on the hinge is rotated to form a sealed space between the upper cavity cover and the lower cavity. The excess part is cut by the partition plate and the blade, the untwisting nozzle blows away the yarn ends, and then the twisting nozzle blows them together and wraps them. Then the yarn is wound up. At this time, the cut excess yarn ends are blown away from the cavity by the air nozzle to prevent them from accumulating and causing blockage in the cavity, reducing the number of manual cleaning and maintenance operations and improving the utilization rate of the equipment.

[0014] In this invention, the yarn needs to move from the bottom to the top. The bottom yarn first passes through the positioning hole on the outer ring to confirm its position and provide support. Then it passes through the yarn groove two on the rotating wheel of the second support arm on the same plane, and finally through the yarn groove one on the rotating disk of the first support arm above, forming an S-shaped vertical route to sort out the running path, prevent the yarn from getting tangled, and provide tension, which helps the yarn move and collect. Attached Figure Description

[0015] Figure 1 This is a perspective view of a yarn splicing device proposed in this utility model; Figure 2 This is a front view of a yarn splicing device proposed in this utility model; Figure 3 This is a cross-sectional view of the outer casing of a yarn splicing device proposed in this utility model; Figure 4 This is a cross-sectional view of the rotating groove of a yarn splicing device proposed in this utility model. Figure 5 This is a cross-sectional view of the protective barrel of a yarn splicing device proposed in this utility model.

[0016] Legend: 1. Workbench; 2. Splicing mechanism; 201. Outer shell; 202. Lower cavity; 203. Hinge; 204. Flip cover; 205. Upper cavity cover; 206. Untwisting nozzle; 207. Twisting nozzle; 208. Cylinder; 209. Air nozzle; 210. Cutting assembly; 2101. Isolation plate; 2102. Blade; 3. Combing mechanism; 301. Support arm one; 302. Turntable; 303. Wire groove one; 304. Support arm two; 305. Rotary wheel; 306. Cable trough 2; 307, positioning component; 3071, external connecting ring; 3072, positioning hole; 4, bracket; 5, base plate; 6, cable exit mechanism; 601, protective barrel; 602, adapter plate; 603, cable reel; 604, limit ring; 7, platform; 8, cable take-up mechanism; 801, support arm 3; 802, roller; 803, rotating trough; 804, support arm 4; 805, trapezoidal cable reel; 9, baffle; 10, limiting post; 11, rotating groove; 12, control panel. Detailed Implementation

[0017] 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.

[0018] Reference Figures 2-3 The present invention provides an embodiment of a yarn splicing device, comprising a workbench 1, a splicing mechanism 2 on the top of the workbench 1 for the main yarn splicing, two supports 4 fixedly connected to the bottom of the workbench 1, a combing mechanism 3 on the bottom of the workbench 1 for combing the yarn path, the same base plate 5 fixedly connected to the bottom of both supports 4, a yarn output mechanism 6 on the top of the base plate 5 for outputting yarn, a raised platform 7 fixedly connected to the top of the workbench 1, and a yarn take-up mechanism 8 on the top of the raised platform 7 for collecting yarn. The splicing mechanism 2 includes a housing 201, the bottom of which is fixedly connected to the top of the workbench 1. The housing 201 is made of metal and protects the internal components. A lower cavity 202 is fixedly connected to the inner wall of the housing 201. The ends of the yarns to be spliced ​​need to be placed into the lower cavity 202. Two hinges 203 are fixedly connected to the left side of the outer wall of the housing 201. The hinges 203 can rotate freely and are respectively connected to the housing 201 and the flip cover 204. The flip cover 204 is fixedly connected to the outer wall of the two hinges 203. When splicing is required, the flip cover 204 covers the housing 201. An upper cavity cover 205 is fixedly connected to the inner wall of the flip cover 204. The upper cavity cover 205 and the lower cavity 202 lock together to form a relatively sealed inner cavity. Multiple untwisting nozzles 206 are fixedly connected to the right side of the inner wall of the lower cavity 202. The untwisting nozzles 206 direct the yarn towards the lower cavity. A high-speed rotating airflow is sprayed into the cavity to disperse and fluff the yarn ends, causing the fibers to separate. Multiple twisting nozzles 207 are fixedly connected to the left side of the inner wall of the lower cavity 202. The twisting nozzles 207 spray high-speed rotating airflow into the cavity in the opposite direction to the untwisting direction, so that the two fluffy fibers are re-wound and bound together. Cylinders 208 are fixedly connected to both the left and right sides of the outer shell 201. The cylinders 208 provide airflow power and are connected to the outer shell 201. An air nozzle 209 is fixedly connected to the front side of the platform 7. The air nozzle 209 is at the same level as the lower cavity 202. It is used to blow a straight airflow into the cavity when the flip cover 204 is opened, so that the excess yarn ends are dispersed by the air nozzle 209 from the cavity to prevent accumulation and blockage in the cavity. A cutting component 210 is provided on the inner wall of the lower cavity 202. Before twisting, the cutting component 210 needs to perform a cutting operation. The cutting assembly 210 includes two partition plates 2101. The tops of the two partition plates 2101 are fixedly connected to the inner wall of the upper cavity cover 205. The partition plates 2101 are used to isolate the excess parts of the two yarns. Two blades 2102 are fixedly connected to the inner wall of the upper cavity cover 205. The blades 2102 use the pressure of the cover to cut and remove the excess parts. Specifically, the outer shell 201 is made of metal to protect the internal components. The ends of the yarns to be twisted need to be placed inside the lower cavity 202. The hinge 203 can rotate freely and is connected to the outer shell 201 and the flip cover 204 respectively. The flip cover 204 covers the outer shell 201 when twisting is required. The upper cavity cover 205 and the lower cavity 202 lock together to form a relatively sealed inner cavity. The untwisting nozzle 206 sprays a high-speed rotating airflow into the cavity, blowing and fluffing the yarn ends, causing the fibers to separate. The twisting nozzle 207 sprays a high-speed rotating airflow into the cavity in the opposite direction to the untwisting direction, re-winding and binding the two fluffy fibers together. The cylinder 208 provides airflow power and is connected to the outer shell 201. 1. The air nozzle 209 is on the same horizontal plane as the lower cavity 202. It is used to blow a straight airflow into the cavity when the flip cover 204 is opened, so that the excess thread ends are blown away by the air nozzle 209 to prevent them from accumulating and causing blockage in the cavity. The isolation plate 2101 is used to isolate the excess parts of the two yarns. The blade 2102 uses the pressure of the cover to cut and remove the excess parts. During twisting, the flip cover 204 is closed to form a sealed inner cavity. At the same time, the blade 2102 cuts the excess parts. Then, untwisting and twisting are performed to complete the twisting. The flip cover 204 is opened, and the air nozzle 209 blows away the excess thread ends to prevent them from accumulating and causing blockage in the cavity, reducing the number of manual cleaning and maintenance times and improving equipment utilization.

[0019] Reference Figures 1-4 The combing mechanism 3 includes a support arm 301, the rear of which is fixedly connected to the front of the workbench 1. The support arm 301 serves as a support and connection. A turntable 302 is rotatably connected to the outer wall of the support arm 301. The turntable 302 is the driving wheel that drives the yarn to move. A groove 303 is provided on the outer wall of the turntable 302. The groove 303 facilitates the yarn to engage and prevents it from coming off. A support arm 304 is fixedly connected to the bottom of the workbench 1. A wheel 305 is rotatably connected to the outer wall of the support arm 304. The wheel 305 is the driven wheel that can rotate freely. It is driven by the yarn to rotate and forms an S-shaped connection with the turntable 302 to provide tension. A groove 306 is provided on the outer wall of the wheel 305. The groove 306 also facilitates the yarn to engage and prevents it from coming off. A positioning component 307 is provided at the bottom of the support arm 304. The positioning component 307 is used to fix the connection position of the yarn. The positioning component 307 includes an outer ring 3071. The top of the outer ring 3071 is fixedly connected to the bottom of the second support arm 304. The outer wall of the outer ring 3071 is provided with a positioning hole 3072. The positioning hole 3072 is aligned with the second wire groove 306 on the rotating wheel 305. Yarns that move upward from the bottom of the same plane need to pass through the positioning hole 3072 on the outer ring 3071. Specifically, support arm 301 serves as a support and connection, turntable 302 is the driving wheel that drives the yarn to move, and yarn groove 303 facilitates yarn engagement and prevents detachment. Support arm 304 is located diagonally behind support arm 301, and turntable 305 is the driven wheel that can rotate freely, driven by the yarn, and forms an S-shaped connection with turntable 302 to provide tension. Yarn groove 306 also facilitates yarn engagement and prevents detachment. Positioning hole 3072 is aligned with yarn groove 306 on turntable 305. Yarns moving upward from the bottom of the same plane need to pass through positioning hole 3072 on outer ring 3071. The yarn moves quickly and orderly from low to high along a complete S-shaped route, sorting out the running path to prevent tangling and providing tension, which helps with yarn movement and collection.

[0020] Reference Figures 1-5 The yarn output mechanism 6 includes a protective barrel 601. The bottom of the protective barrel 601 is fixedly connected to the top of the base plate 5. The protective barrel 601 is used to prevent the yarn spool 603 from flying out and provides a positioning effect. The inner wall of the protective barrel 601 is fixedly connected to the adapter plate 602. The top of the adapter plate 602 is slidably connected to the yarn spool 603. The bottom of the yarn spool 603 has a protruding ring that can engage the adapter plate 602 and rotate freely. The outer wall of the protective barrel 601 is fixedly connected to the limiting ring 604. The yarn on the yarn spool 603 needs to pass through the limiting ring 604 to be output upward. The fixed output point makes the yarn spool 603 rotate, thereby outputting the yarn. The take-up mechanism 8 includes a support arm 3 801, the bottom of which is fixedly connected to the top of the platform 7. The support arm 3 801 serves as a support. A roller 802 is rotatably connected to the outer wall of the support arm 3 801. The yarn needs to pass through the roller 802 before it is finished being gathered. The outer wall of the roller 802 has a rotating groove 803. The rotating groove 803 is an unconventional groove with a spiral pattern. When the roller 802 rotates, it carries the yarn back and forth. A support arm 4 804 is fixedly connected to the top of the platform 7. The support arm 4 804 also serves as a support. A trapezoidal bobbin 805 is rotatably connected to the outer wall of the support arm 4 804. All the yarn is gathered and concentrated on the trapezoidal bobbin 805. Due to the presence of the rotating groove 803, the yarn is evenly gathered on the surface of the trapezoidal bobbin 805. Two baffles 9 are fixedly connected to the top of the base plate 5. Since multiple devices are placed side by side, the baffles 9 are used to isolate the device. A limiting post 10 is fixedly connected to the front of the platform 7. The limiting post 10 is the position that the yarn needs to pass through after being combed. It is used to bind the position of the yarn and facilitate the combing of the roller 802. A rotating groove 11 is opened on the front of the workbench 1. The rotating groove 11 provides the turntable 302 with room for movement, making the device structure compact. A control panel 12 is fixedly connected to the top of the workbench 1. The control panel 12 is used to control the operation of the device. Specifically, the protective barrel 601 prevents the spool 603 from flying out and provides a positioning effect. The top of the adapter plate 602 is slidably connected to the spool 603. The bottom of the spool 603 has a protruding ring that can engage the adapter plate 602, allowing it to rotate freely and output yarn. The yarn on the spool 603 needs to pass through the limiting ring 604 to be output upwards. The fixed output point allows the spool 603 to rotate, thereby outputting the yarn. The support arm 801 is used for support. Before the yarn is finished being gathered, it needs to pass through the roller 802. The rotating groove 803 is an unconventional groove with a spiral pattern. When the roller 802 rotates, it carries the yarn left and right. The support arm 804 also serves a supporting function, and all the yarns are gathered and concentrated on the trapezoidal bobbin 805. Due to the presence of the rotating groove 803, the yarns are evenly gathered on the surface of the trapezoidal bobbin 805. Since multiple devices are placed side by side, the baffle 9 serves to isolate the yarns. The limiting post 10 is the position that the yarns need to pass through after being combed, and it is used to bind the position of the yarns to facilitate the combing of the roller 802. The rotating groove 11 provides space for the turntable 302 to move, making the device structure compact. The control panel 12 is used to control the operation of the device, ensuring that the device operates smoothly and completely, reducing the probability of accidents, and improving the operating speed.

[0021] Working principle: During splicing, the flip cover 204 is closed to form a sealed inner cavity. At the same time, the blade 2102 cuts off the excess part. Then, untwisting and retwisting are performed to complete the splicing. The flip cover 204 is opened, and the air nozzle 209 blows away the excess yarn ends. The outer shell 201 is made of metal to protect the internal components. The ends of the yarns to be spliced ​​need to be placed inside the lower cavity 202. The hinge 203 can rotate freely and is connected to the outer shell 201 and the flip cover 204 respectively. When splicing is required, the flip cover 204 covers the outer shell 201. The upper cavity cover 205 and the lower cavity 202 lock together to form a relatively sealed inner cavity. The untwisting nozzle 206 sprays a high-speed rotating airflow into the cavity to blow away and fluff the yarn ends. Under the condition of fiber separation, the twisting nozzle 207 sprays a high-speed rotating airflow into the cavity in the opposite direction to the untwisting direction, which re-wraps and binds the two loose fibers together. The cylinder 208 provides airflow power and is connected to the outer shell 201. The air nozzle 209 is on the same horizontal plane as the lower cavity 202. It is used to blow a straight airflow into the cavity when the cover 204 is opened, so that the excess thread ends are blown away from the cavity by the air nozzle 209 to prevent them from accumulating and causing blockage in the cavity. The isolation plate 2101 is used to isolate the excess parts of the two yarns respectively. The blade 2102 uses the pressure of the cover to cut and remove the excess parts to prevent them from accumulating and causing blockage in the cavity, reducing the number of manual cleaning and maintenance times and improving equipment utilization. Furthermore, the yarn needs to pass through positioning hole 3072, yarn groove two 306, and yarn groove one 303 from bottom to top, following a complete S-shaped route. Among them, support arm one 301 serves as a support and connection, turntable 302 is the driving wheel that drives the yarn to move, yarn groove one 303 facilitates yarn engagement and prevents detachment, support arm two 304 is located diagonally behind support arm one 301, and turntable 305 is the driven wheel that can rotate freely, driven by the yarn, and forms an S-shaped connection with turntable 302 to provide tension. Yarn groove two 306 also facilitates yarn engagement and prevents detachment. Positioning hole 3072 is aligned with yarn groove two 306 on turntable 305. Yarns moving upward from the bottom of the same plane need to pass through positioning hole 3072 on outer ring 3071, quickly and orderly, sorting the running path to prevent tangling and providing tension, which helps the yarn to move and collect.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A yarn splicing device, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a splicing mechanism (2), the bottom of the workbench (1) is fixedly connected with two supports (4), the bottom of the workbench (1) is provided with a combing mechanism (3), the bottom of the two supports (4) is fixedly connected with the same base plate (5), the top of the base plate (5) is provided with a wire exit mechanism (6), the top of the workbench (1) is fixedly connected with a platform (7), and the top of the platform (7) is provided with a wire take-up mechanism (8). The splicing mechanism (2) includes a housing (201), the bottom of which is fixedly connected to the top of the workbench (1). A lower cavity (202) is fixedly connected to the inner wall of the housing (201). Two hinges (203) are fixedly connected to the left side of the outer wall of the housing (201). A flip cover (204) is fixedly connected to the outer wall of the two hinges (203). An upper cavity cover (205) is fixedly connected to the inner wall of the flip cover (204). Multiple untwisting nozzles (206) are fixedly connected to the right side of the inner wall of the lower cavity (202). Multiple twisting nozzles (207) are fixedly connected to the left side of the inner wall of the lower cavity (202). Cylinders (208) are fixedly connected to both the left and right sides of the housing (201). An air nozzle (209) is fixedly connected to the front side of the platform (7). A cutting assembly (210) is provided on the inner wall of the lower cavity (202).

2. The yarn splicing device according to claim 1, characterized in that: The combing mechanism (3) includes a support arm (301), the rear side of which is fixedly connected to the front side of the workbench (1). A turntable (302) is rotatably connected to the outer wall of the support arm (301). A wire groove (303) is provided on the outer wall of the turntable (302). A support arm (304) is fixedly connected to the bottom of the workbench (1). A wheel (305) is rotatably connected to the outer wall of the support arm (304). A wire groove (306) is provided on the outer wall of the wheel (305). A positioning component (307) is provided at the bottom of the support arm (304).

3. The yarn splicing device according to claim 1, characterized in that: The cable outlet mechanism (6) includes a protective barrel (601), the bottom of which is fixedly connected to the top of the base plate (5), an adapter plate (602) is fixedly connected to the inner wall of the protective barrel (601), a winding shaft (603) is slidably connected to the top of the adapter plate (602), and a limit ring (604) is fixedly connected to the outer wall of the protective barrel (601).

4. The yarn splicing device according to claim 1, characterized in that: The take-up mechanism (8) includes a support arm three (801), the bottom of which is fixedly connected to the top of the platform (7), and a roller (802) is rotatably connected to the outer wall of the support arm three (801). A rotating groove (803) is opened on the outer wall of the roller (802). A support arm four (804) is fixedly connected to the top of the platform (7), and a trapezoidal spool (805) is rotatably connected to the outer wall of the support arm four (804).

5. A yarn splicing device according to claim 1, characterized in that: The cutting assembly (210) includes two partition plates (2101), the tops of which are fixedly connected to the inner wall of the upper cavity cover (205), and two blades (2102) are fixedly connected to the inner wall of the upper cavity cover (205).

6. A yarn splicing device according to claim 2, characterized in that: The positioning component (307) includes an outer ring (3071), the top of which is fixedly connected to the bottom of the second support arm (304), and the outer wall of the outer ring (3071) is provided with a positioning hole (3072).

7. A yarn splicing device according to claim 1, characterized in that: Two baffles (9) are fixedly connected to the top of the base plate (5), and a limiting column (10) is fixedly connected to the front side of the platform (7).

8. A yarn splicing device according to claim 1, characterized in that: The workbench (1) has a rotating groove (11) on its front side, and a control panel (12) is fixedly connected to the top of the workbench (1).