A yarn supply device for a double twister

Abstract

The application relates to the technical field of double-twisting machine equipment, in particular to a thread feeding device for a double-twisting machine, which comprises a power base and a plurality of thread feeding devices installed on the power base, the plurality of thread feeding devices are all installed on the power base and can continuously rotate in a thread feeding process under the driving of power motors installed on the power base, the thread feeding device comprises a thread feeding seat, a left thread passing cylinder and a right thread passing cylinder, the left thread passing cylinder and the right thread passing cylinder are coaxially arranged and are rotatably connected with left and right side frames of the power base respectively, a thread unwinding piece, a tension adjusting piece and a plurality of winding cylinders are installed on the thread feeding seat, the thread roll on the thread unwinding piece is wound to the left thread passing cylinder from the back through the plurality of winding cylinders, and the tension adjusting piece is used for adaptively adjusting the tension state of the thread according to the thread roll state, so that the thread feeding stability of the device is ensured.

Description

Technical Field

[0001] This invention relates to the field of double twisting machine equipment technology, and specifically to a wire supply device for a double twisting machine. Background Technology

[0002] The production and processing of double twisting machines requires winding multiple strands of wire. Stable wire feeding is an important factor in maintaining stable production of double twisting machines. Wire feeding generally involves continuously feeding multiple coils of wire into the main body of the double twisting machine. In order to ensure the quality of steel rope products, the multiple strands of wire need to be twisted separately when they are fed into the main body of the double twisting machine. Existing double twisting machine wire feeding devices require the cooperation of multiple auxiliary devices to achieve the above purpose, resulting in poor production stability and difficulty in further improving efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a wire feeding device for a double-twisting machine, comprising a power base and multiple wire feeding devices mounted on the power base. All wire feeding devices are mounted on the power base and can be continuously rotated by a power motor mounted on the power base during the wire feeding process. Each wire feeding device includes a wire feeding seat, a left threading spool, and a right threading spool. The left and right threading spools are coaxially arranged and rotatably connected to the left and right frames of the power base, respectively. The wire feeding seat is equipped with an unwinding component, a tension adjusting component, and multiple winding spools. The wire coil on the unwinding component is wound backward through the multiple winding spools and output from the left threading spool. The tension adjusting component adaptively adjusts the tension of the output wire according to the state of the wire coil, ensuring stable wire feeding.

[0004] To solve the above-mentioned problems, this invention provides a wire feeding device for a double-twisting machine, including a power base and multiple wire feeding devices, each mounted on the power base. Each wire feeding device includes a wire feeding seat, a left threading spool, and a right threading spool. The wire feeding seat is equipped with an unwinding component and a tension adjusting component. Winding reels are vertically arranged on both its left and right sides, facing each other. The left and right threading spools are respectively threaded onto their surfaces. The left and right threading spools are coaxial and hollow internally. Threading grooves are formed on the spools located on the side of the winding reels furthest from the wire feeding seat. Threading grooves are used to install... The device includes a winding guide wheel. The power base comprises a base, a left frame, and a right frame. The left and right frames are arranged opposite each other and are vertically fixed on the base. Multiple mounting holes are provided on both the left and right frames. The mounting holes on the left and right frames are respectively opposite each other. The left and right wire threading drums are respectively inserted into the two opposite mounting holes on the left and right frames and are respectively connected to the left and right frames through bearing components. A power motor is installed on the left frame. The power motor is connected to multiple left wire threading drums to drive multiple wire feeding devices to rotate.

[0005] As a further embodiment of the wire feeding device for a double twisting machine of the present invention, the wire threading groove is located between the left side frame and the right side frame.

[0006] As a further embodiment of the wire feeding device for a double twisting machine of the present invention, a plurality of winding drums are vertically mounted on the upper plate of the wire feeding base, and an unwinding component is located between the plurality of winding drums. The unwinding component includes a base and a limiting roller. The base is horizontally mounted on the wire feeding base, and the limiting roller is vertically fixed on the base. The tension adjusting component includes a movable rod, a first winding shaft, and a second winding shaft. The movable rod is mounted on the wire feeding base, and its left end is hinged to the wire feeding base. The first winding shaft is fixed to the right end of the movable rod and is perpendicular to the wire feeding base. A first upper winding shaft is mounted on the first winding shaft. The winding reel and the first lower winding reel are provided with two elastic elements on the pay-off seat. The two elastic elements are located on the left and right sides of the unwinding member, respectively, and all three are located on the same side of the movable rod. The elastic element located on the left side of the unwinding member is connected to the movable rod through a connecting rope wound around the side of the chassis, so as to pull the right end of the movable rod toward the unwinding member. The elastic element located on the right side of the unwinding member is hinged to the movable rod, so as to push the right end of the movable rod away from the unwinding member. The second winding shaft is vertically fixed on the pay-off seat, and the second upper winding reel and the second lower winding reel are installed on the second winding shaft.

[0007] As a further embodiment of the wire feeding device for a double twisting machine of the present invention, the elastic element includes an L-shaped block, a spring, and a pull rod. The L-shaped block is fixed on the wire feeding seat, the pull rod is horizontally installed on the L-shaped block, a stop block is fixed on its rod body, and a spring is sleeved on the rod body of the pull rod located between the stop block and the L-shaped block.

[0008] As a further embodiment of the wire supply device for a double twisting machine of the present invention, the connecting rope is a chain.

[0009] As a further embodiment of the wire supply device for a double twisting machine of the present invention, the winding spool is provided with a wire hole, and a side winding wheel is installed in the wire hole.

[0010] As a further embodiment of the wire feeding device for a double twisting machine of the present invention, a synchronous pulley is installed on the shaft on the left side of the left side frame of the left threading drum, and adjacent left threading drums are connected by synchronous belt transmission. The power motor is connected to a synchronous belt transmission via a synchronous belt to drive multiple left threading drums to rotate simultaneously.

[0011] As a further embodiment of the wire feeding device for a double twisting machine of the present invention, a wire guide cylinder is fixedly provided on the left side of the left side frame, and multiple mounting ports on the left side frame are equally spaced along the circumferential direction with the wire guide cylinder as the center. Multiple wire guide wheels are installed on the wire guide cylinder, and the number of wire guide wheels is equal to that of the wire feeding device.

[0012] As a further embodiment of the wire feeding device for a double twisting machine of the present invention, a plurality of wire exit guides are also installed on the left side frame. The number of wire exit guides is equal to that of the wire feeding device. The wire exit guide includes a support plate, a guide wheel and a guide coil. The guide wheel is installed on the left side frame through the support plate. The guide wheels of the plurality of wire exit guides are respectively located on the left side of the plurality of left threading drums. The guide coil is fixed on the support plate and located on the side of the guide wheel away from the left threading drum.

[0013] As a further embodiment of the wire supply device for a double twisting machine of the present invention, a detection head is also installed on the support plate.

[0014] Compared with the prior art, the present invention has the following advantages: This device is used to stably supply multi-strand wire to the main body of the double twisting machine. During the wire supply process, the multi-strand wire is individually rotated and twisted to improve the quality of the product. It does not require the cooperation of multiple auxiliary devices, which facilitates production and reduces the space occupation of the workshop compared with the prior art. During the wire feeding process, the wire drawn from the wire spool passes through three winding drums in sequence, and then winds in a figure-eight shape on the first winding shaft and the second winding shaft. Since the first winding shaft is installed on the movable rod, and the movable rod is connected to the base through two elastic elements, the degree of deflection of the movable rod under the action of the two elastic elements can be adaptively adjusted according to the thickness of the remaining wire spool on the wire spool. This ensures that the wire after passing through the tension adjustment component is always in a state of tensile tension, thereby ensuring the stable operation of the double twisting machine and ensuring the stability of double twisting machine production. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the power supply equipment; Figure 2 This is a schematic diagram of the wire feeding device. Figure 3 This is a three-dimensional structural diagram of the wire feeding device; Figure 4 This is a top view of the wire feeding device. Figure 5 This is a schematic diagram of the front structure of the power unit; Figure 6 This is a schematic diagram of the left side structure of the power unit; Figure 7 This is a structural schematic diagram of the cable guide component;

[0016] The diagram shows the following markings: 1. Power base; 2. Wire feeding device; 101. Base; 102. Left side frame; 103. Right side frame; 104. Wire guide tube; 105. Wire guide wheel; 106. Wire guide component; 1061. Support plate; 1062. Guide wheel; 1063. Guide coil; 201. Wire feeding seat; 202. Left wire threading tube; 203. Right wire threading tube; 204. Unwinding component; 205. Tension adjusting component; 2051. Movable rod; 2052. First winding shaft; 2053. Second winding shaft; 206. Winding reel; 207. Winding guide wheel; 208. Winding tube; 209. Elastic component; 2091. L-shaped block; 2092. Spring; 2093. Pull rod; 210. Connecting rope. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0022] like Figure 1-7 As shown: A wire feeding device for a double twisting machine includes a power base 1 and multiple wire feeding devices 2. The multiple wire feeding devices 2 are all mounted on the power base 1. Each wire feeding device 2 includes a wire feeding seat 201, a left threading spool 202, and a right threading spool 203. The wire feeding seat 201 is a rectangular seat with a horizontal upper surface. Winding discs 206 are vertically arranged on both its left and right sides. The winding discs 206 are circular discs, and two winding discs 206 are arranged opposite each other. Each winding disc 206 has a winding hole, and two winding holes are opposite each other, with a side winding wheel installed inside each winding hole. The left threading spool 202 passes through the left side of the wire feeding seat 201. On the winding reel 206, the right threading drum 203 is installed on the winding reel 206 on the right side of the pay-off seat 201. The left threading drum 202 and the right threading drum 203 are coaxial and both are hollow inside. The left threading drum 202 and the right threading drum 203 have threading grooves on the cylinder body on the side of the winding reel 206 away from the pay-off seat 201. The threading groove on the left threading drum 202 is located on the left side of the left winding reel 206, and the threading groove on the right threading drum 203 is located on the right side of the right winding reel 206. A winding guide wheel 207 is installed in each threading groove. The axle of the winding guide wheel 207 is parallel to the upper plate surface of the pay-off seat 201.

[0023] Multiple winding drums 208 are vertically mounted on the wire feeding base 201. There are three winding drums 208, which are located at the left front side, left rear side and right rear side corners of the wire feeding base 201, respectively. The wire feeding base 201 is also equipped with an unwinding component 204 and a tension adjusting component 205. The unwinding component 204 is located between the multiple winding drums 208. Preferably, the unwinding component 204 is located at the middle of the upper surface of the wire feeding base 201. The chassis is rotatably and horizontally mounted on the wire feeding base 201 through a slewing bearing. The limiting roller is vertically fixed on the chassis. The wire roll is placed on the chassis and the limiting roller passes through the wire roll, which can realize the wire feeding operation. The pay-off seat 201 is also equipped with a tension adjusting component 205, which is used to adjust the tension of the wound wire. The tension adjusting component 205 includes a movable rod 2051, a first winding shaft 2052, and a second winding shaft 2053. The movable rod 2051 is horizontally placed on the pay-off seat 201, with its left end intersecting with the pay-off seat 201. The horizontal rod can be flipped at the intersection point on the upper surface of the pay-off seat 201 for adjustment. The first winding shaft 2052 is fixed to the right end of the movable rod 2051. The first winding shaft 2053 is... The shaft 2052 is perpendicular to the upper plate of the pay-off seat 201. The first winding shaft 2052 is equipped with a first upper winding wheel and a first lower winding wheel. The second winding shaft 2053 is vertically fixed on the pay-off seat 201. The second winding shaft 2053 is located on the right side of the unwinding member 204. The lever 2051 can rotate around its left end to drive the first winding shaft 2052 to approach or move away from the second winding shaft 2053. The second winding shaft 2053 is equipped with a second upper winding wheel and a second lower winding wheel.

[0024] The pay-off seat 201 is provided with two elastic elements 209, which are located on the left and right sides of the unwinding member 204, respectively. The pay-off seat 201 and the two elastic elements 209 are both located on the same side of the movable rod 2051. The elastic element 209 located on the left side of the unwinding member 204 is connected to the movable rod 2051 by a connecting rope 210 wrapped around the side of the chassis. This elastic element 209 is used to pull the right end of the movable rod 2051 toward the unwinding member 204. The elastic element 209 located on the right side of the unwinding member 204 is hinged to the movable rod 2051. This elastic element 209 is used to push the right end of the movable rod 2051 away from the unwinding member 204. Specifically, the elastic element 209 includes an L-shaped block 2091, a spring 2092, and a pull rod 2093. The L-shaped block 2091 is fixed on the wire feeding seat 201. The L-shaped block 2091 includes a horizontal block and a vertical block that are perpendicular to each other. The horizontal block portion of the L-shaped block 2091 is fixedly connected to the wire feeding seat 201, and its vertical block portion is perpendicular to the wire feeding seat 201. The pull rod 2093 is horizontally installed on the L-shaped block 2091, and its rod body is movably inserted into the opening in the vertical block. A stop block is fixed on the rod body of the pull rod 2093, and a spring 2092 is sleeved on the rod body of the pull rod 2093 located between the stop block and the L-shaped block 2091. The stop is located at the end of the pull rod 2093. The end of the pull rod 2093 on the left side of the unwinding member 204 without the stop is connected to the connecting rope 210. The end of the pull rod 2093 on the right side of the unwinding member 204 with the stop is hinged to the movable rod 2051. In order to improve the stability of the equipment, the connecting rope 210 can be a chain in some embodiments.

[0025] The power base 1 includes a base 101, a left side frame 102, and a right side frame 103. The left side frame 102 and the right side frame 103 are arranged facing each other and are both vertically fixed on the base 101. Multiple mounting holes are provided on both the left side frame 102 and the right side frame 103. The multiple mounting holes on the left side frame 102 and the multiple mounting holes on the right side frame 103 are respectively facing each other. The wire feeding device 2 is located on the left side frame 102 and the right side frame 103. Its left wire threading tube 202 and right wire threading tube 203 are respectively inserted into the mounting holes on the left side frame 102 and the right side frame 103. The left wire threading tube 202 is movably connected to the left side frame 102 through a bearing component, and the right wire threading tube 203 is movably connected to the right side frame 103 through a bearing component. A power motor is installed on the left side frame 102. The power motor is connected to the multiple left wire threading tubes 202 for driving the multiple wire feeding devices 2 to rotate.

[0026] The left threading drum 202 is mounted on a shaft on the left side of the left side frame 102, and adjacent left threading drums 202 are connected by a synchronous belt drive. The power motor is connected to a synchronous belt drive to simultaneously drive multiple left threading drums 202 to rotate, thereby driving multiple wire feeding devices 2 to rotate during the wire feeding process. A wire exit guide cylinder 104 is fixedly installed on the left side of the left side frame 102. The wire exit guide cylinder 104 is a hollow cylinder closed at the left end. Multiple mounting openings on the left side frame 102 are evenly distributed along the circumference with the wire exit guide cylinder 104 as the center. Multiple wire exit guide wheels 105 are mounted on the wire exit guide cylinder 104, and the number of wire exit guide wheels 105 is equal to the number of wire feeding devices 2. Preferably, an opening is formed in the wall of the wire exit guide cylinder 104, and the power motor is installed inside the wire exit guide cylinder 104. A drive wheel is installed on the side wall of the left frame 102, inside the cable guide cylinder 104. The drive wheel is connected to a synchronous pulley on one or two left cable reels 202 via a synchronous belt drive. The drive wheel is driven by a power motor, which can rotate multiple cable exit devices. The power motor is a servo motor or a geared motor. In some embodiments, to improve the stability of the system, a synchronous pulley is also installed on the right cable reel 203, and adjacent right cable reels 203 are connected by a synchronous belt drive.

[0027] Multiple cable guides 106 are also installed on the left side frame 102. The number of cable guides 106 is equal to that of the cable feeding device 2. Each cable guide 106 includes a support plate 1061, a guide wheel 1062, and a guide coil 1063. The guide wheel 1062 is installed on the left side frame 102 through the support plate 1061. The guide wheels 1062 of the multiple cable guides 106 are respectively located on the left side of the multiple left cable reels 202. The guide coil 1063 is fixed on the support plate 1061 and located on the side of the guide wheel 1062 away from the left cable reel 202. A detection head is also installed on the support plate 1061. The detection head is used to detect whether there is a wire passing between the guide wheel 1062 and the left end of the left cable reel 202.

[0028] The left side frame 102 is also equipped with a number of tensioning components for adjusting the tension of the synchronous belt. The tensioning components include a mounting plate and a tensioning wheel. The mounting plate has a strip groove on its surface. The mounting plate is bolted to the left side frame 102. The tensioning wheel is mounted on the mounting plate. The tensioning wheel is located at one end of the strip groove and its axle is perpendicular to the mounting plate. By adjusting the position of the mounting plate on the left side frame 102 along the length of the mounting groove, the tensioning wheel can be moved closer to or away from the synchronous belt, thereby adjusting the tension of the synchronous belt.

[0029] In this embodiment, there are preferably seven wire feeding devices 2. There are seven mounting openings on both the left side frame 102 and the right side frame 103, and seven wire guides 106 on the left side frame 102 and seven wire guide wheels 105 on the wire guide cylinder 104. During use, the power motor can drive all seven wire feeding devices 2 to rotate. The wire coil is mounted on the unwinding member 204. The wire on the coil passes sequentially around the right rear winding cylinder 208, the left rear winding cylinder 208, and the left front winding cylinder 208, then around the first lower winding wheel, the second lower winding wheel, the first upper winding wheel, and the second upper winding wheel. It enters the right winding cylinder 203 from the left end, passes around the winding guide wheel 207 in the wire slot of the right winding cylinder 203, then passes the side winding wheel on the right winding disc 206, then passes through the winding wheel on the left winding disc 206, and finally exits from the winding wheel on the left winding cylinder 202. The wire is inserted into the left wire-threading drum 202 at the wire guide wheel 207 and finally extends out from the left end of the left wire-threading drum 202. The wire from the left wire-threading drum 202 is guided by the wire guide wheel 1062 on the wire exit guide 106 and then enters the coil. It then passes around the corresponding wire exit guide wheel 105 on the wire exit guide drum 104 and is threaded into the main body of the double twisting machine along with the other six strands of rope for processing. During the above process, the wire feeding device 2 rotates continuously, so that the multi-strand wires are pre-twisted before entering the main body of the double twisting machine for processing, which is beneficial to improving the quality of the final steel rope product.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A yarn supply device for a two-for-one twister, characterized by: The utility model provides a power machine seat and a plurality of pay -off device (2) are installed on power machine seat (1), pay -off device (2) includes pay -off seat (201), left threading cylinder (202) and right threading cylinder (203), install unwinding spare (204) and tension adjusting spare (205) on pay -off seat (201), and the left and right sides along are vertically provided with reel (206), two reels (206) are opposite, and the board surface of two is respectively threaded with left threading cylinder (202) and right threading cylinder (203), and left threading cylinder (202) and right threading cylinder (203) are coaxial and both are hollow inside, and the cylinder body on the side of two reels (206) away from pay -off seat (201) is set up with threading groove, and winding guide pulley (207) is installed in threading groove, the power machine seat (1) includes base (101), left side frame (102) and right side frame (103), left side frame (102) and right side frame (103) are opposite and are vertically fixed on base (101), and a plurality of installation openings are set up on left side frame (102) and right side frame (103), and the plurality of installation openings on left side frame (102) and the plurality of installation openings on right side frame (103) are opposite respectively, and left threading cylinder (202) and right threading cylinder (203) are threaded in the two installation openings on left side frame (102) and right side frame (103) opposite each other respectively, and are connected with left side frame (102) and right side frame (103) through bearing spare respectively, and power motor is installed on left side frame (102), and power motor is drivingly connected with a plurality of left threading cylinder (202) to drive a plurality of pay -off device (2) rotation, and a plurality of wire outlet guide members (106) are installed on left side frame (102) still, and wire outlet guide member (106) is equal in number with pay -off device (2); The upper plate surface of the wire feeding seat (201) is vertically provided with a plurality of wire winding drums (208), and a wire unwinding piece (204) is located between the plurality of wire winding drums (208), wherein the wire unwinding piece (204) comprises a bottom disc and a limiting roller, the bottom disc is horizontally arranged on the wire feeding seat (201), and the limiting roller is vertically and fixedly arranged on the bottom disc; the tension adjusting piece (205) comprises a movable rod (2051), a first wire winding shaft (2052) and a second wire winding shaft (2053), the movable rod (2051) is arranged on the wire feeding seat (201), the left end of the movable rod (2051) is hingedly connected with the wire feeding seat (201), the first wire winding shaft (2052) is fixedly arranged at the right end of the movable rod (2051), the first wire winding shaft (2052) is perpendicular to the wire feeding seat (201), the first wire winding shaft (2052) is provided with a first upper wire winding wheel and a first lower wire winding wheel, the wire feeding seat (201) is provided with two elastic pieces (209), the two elastic pieces (209) are respectively located on the left side and the right side of the wire unwinding piece (204), and all of them are located on the same side of the movable rod (2051), the elastic piece (209) located on the left side of the wire unwinding piece (204) is connected with the movable rod (2051) through a connecting rope (210) wound on the side surface of the bottom disc, so as to pull the right end of the movable rod (2051) to the wire unwinding piece (204), the elastic piece (209) located on the right side of the wire unwinding piece (204) is hingedly connected with the movable rod (2051), so as to push the right end of the movable rod (2051) away from the wire unwinding piece (204), the second wire winding shaft (2053) is vertically and fixedly arranged on the wire feeding seat (201), and the second wire winding shaft (2053) is provided with a second upper wire winding wheel and a second lower wire winding wheel; The left threading drum (202) is provided with a synchronous wheel on the shaft body on the left side of the left side frame (102), and adjacent left threading drums (202) are connected through a synchronous belt transmission, and a power motor is connected with one synchronous belt transmission through a synchronous belt to simultaneously drive a plurality of left threading drums (202) to rotate; The left side of the left side frame (102) is fixedly provided with a wire outlet guide cylinder (104), a plurality of mounting holes on the left side frame (102) are distributed at equal intervals in the circumferential direction with the wire outlet guide cylinder (104) as the center, and a plurality of wire outlet guide wheels (105) are arranged on the wire outlet guide cylinder (104), and the number of the wire outlet guide wheels (105) is equal to that of the wire feeding device (2); The wire outlet guide (106) comprises a supporting plate (1061), a wire guide wheel (1062) and a wire guide loop (1063), the wire guide wheel (1062) is arranged on the left side frame (102) through the supporting plate (1061), the wire guide wheels (1062) of a plurality of wire outlet guides (106) are respectively located on the left sides of a plurality of left threading drums (202), the wire guide loop (1063) is fixedly arranged on the supporting plate (1061) and located on the side, away from the left threading drum (202), of the wire guide wheel (1062), and a detection head is further arranged on the supporting plate (1061).

2. A yarn supply device for a two-for-one twister as defined in claim 1, characterized in that: The threading groove is located between the left side frame (102) and the right side frame (103).

3. A yarn supply device for a two-for-one twister as defined in claim 1, characterized in that: The elastic member (209) comprises an L-shaped block (2091), a spring (2092) and a pull rod (2093), the L-shaped block (2091) is fixed on the pay-off seat (201), the pull rod (2093) is horizontally installed on the L-shaped block (2091), a stopper is fixed on the rod body of the pull rod (2093), and the spring (2092) is sleeved on the rod body between the stopper and the L-shaped block (2091).

4. A yarn supply device for a two-for-one twister as defined in claim 3, characterized in that: The connecting rope (210) is a chain.

5. A yarn supply device for a two-for-one twister as defined in claim 3, characterized in that: A wire guide hole is formed in the winding disc (206), and a side winding wheel is installed in the wire guide hole.

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