A yarn laying assembly for a composite material pole production line

Abstract

The present invention relates to a yarn laying component for a composite material rod production line applied to the field of plastic molding. By providing constraint strips uniformly distributed on the circumference, the mold rod is circumferentially extruded, thereby improving the bonding tightness of the glass fiber on the mold rod and the yarn laying quality, and adapting to the extrusion and shaping requirements of the fiber filaments when laying yarn on mold rods of different specifications; at the same time, by providing glue suction holes and a negative pressure suction mechanism on the extrusion strip, the glue accumulated on the surface after being squeezed out by the constraint strip is collected under negative pressure, thereby reducing the probability of glue accumulation and dripping; in addition, by providing a wire threading hole and a drain pipe on the wire guide ring, the glue collected by the negative pressure suction mechanism is injected into the wire threading hole of the wire guide ring, so that the glass fiber is coated with glue twice before winding, thereby overcoming the problem that the traditional glass fiber has insufficient surface glue after passing through multiple guide components before winding.

Description

Technical Field

[0001] The invention relates to a yarn placing assembly, in particular to a yarn placing assembly for a composite material rod production line applied in the field of plastic molding. Background Art

[0002] The manufacturing of composite rods is centered around fiber winding technology, combined with resin impregnation and curing processes. First, the glass fiber bundles are impregnated with a resin adhesive containing a curing agent. They are then evenly wound onto the surface of the mold rod at a preset angle and number of layers using a CNC winding machine. During the winding process, the fiber tension and arrangement density are precisely controlled to optimize mechanical properties.

[0003] The existing patent with publication number CN119427728A discloses a variable-diameter yarn bundle constraint control mechanism for a composite material pole production line, including a carrier assembly, the carrier assembly includes a dynamic carrier and a static carrier arranged parallel to each other and rotatably connected, and several groups of constraint unit assemblies for constraining and controlling the distance between the axial yarn bundle and the outer wall of the pole mold, wherein: a dynamic carrier is provided with a dynamic disk inner ring, and a static carrier is provided with a static disk inner ring; several groups of constraint unit assemblies are symmetrically distributed along the circumferential rotation of the carrier assembly, one end of the constraint unit assembly is connected to the dynamic carrier along the radial direction of the carrier assembly, and the other end is fixedly connected to the dynamic carrier through the dynamic disk inner ring and the static disk inner ring; and also includes a drive assembly for driving the dynamic carrier to rotate on the static carrier.

[0004] The above-mentioned prior art discloses a constraint unit assembly that can perform yarn laying operations on mold rods of different diameters. However, during the yarn laying process, since the glass fiber soaked in glue (resin glue) needs to pass through multiple guide assemblies before winding, the guide assembly causes the glue coating on the surface of the glass fiber to fall off when it comes into contact with the glass fiber, affecting the adhesion and fixing effect of the glass fiber and the mold rod. At the same time, when the constraint assembly squeezes the glass fiber on the mold rod, the overflowing excess glue easily slides and drips along the constraint assembly, polluting the working environment. Summary of the Invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the constraint components of the existing yarn laying device easily cause glue accumulation and dripping to pollute the working environment.

[0006] In order to solve the above problems, the present invention provides a yarn laying assembly for a composite material rod production line, including a yarn laying machine; the yarn laying machine includes a shell, a plurality of constraint bars uniformly distributed on a circumference are provided in the shell, the inner sides of the constraint bars abut against the outer wall of the mold rod, the constraint bars include an extrusion bar and a first end block and a second end block respectively fixed to the end portions of both sides of the extrusion bar, the first end block is rotatably connected to a fixed shaft, the fixed shaft is fixedly connected to the inner wall of the shell, the second end block is fixedly connected to a sliding shaft, the sliding shaft is slidably connected to a grooved plate, the grooved plate is provided with a guide groove for sliding the sliding shaft, the grooved plate is fixedly connected to a gear plate rotatably connected to the inner wall of the shell, the gear plate is meshed with a driving gear, and the driving gear is fixedly connected to the output shaft of the first motor;

[0007] A glue suction channel is provided in the extrusion strip along its length direction, a plurality of glue suction holes are provided on the outer wall of the extrusion strip and are equidistantly distributed and connected to the glue suction channel, an annular cavity connected to the glue suction channel is provided in the first end block, a hose connected to the annular cavity is fixedly connected to the first end block, the hose is fixedly connected to an annular tube fixedly connected to the inner wall of the shell, and the annular tube is connected to a negative pressure suction mechanism through a liquid extraction pipe;

[0008] The outer wall of the shell is fixedly connected to a wire guide ring through a fixed tube, and two groups of wire threading holes distributed in a circumference are provided on the wire guide ring. An annular channel located between the two groups of wire threading holes is provided inside the wire guide ring. The upper end of the wire guide ring is fixedly connected to a drain pipe connected to the annular channel, the drain pipe is connected to the liquid outlet end of the negative pressure suction mechanism, and the wire threading holes are connected to the annular channel through an axial channel.

[0009] In the yarn laying assembly for a composite material rod production line, the amount of glue at different working positions is adjusted by means of a constraint strip with glue suction holes and a drainage pipe connected to the threading hole.

[0010] As a further improvement of the present application, a glue dripping assembly is provided in the wire guide ring, and the glue dripping assembly includes a bell tube fixedly connected to the wire guide ring and extending to the inner end surface thereof, the outer end of the bell tube extends into the annular channel, the upper part of the bell tube is fixedly connected to a pair of injection tubes, the pair of injection tubes pass through the axial channel and are connected to the wire threading hole, a valve core is slidably connected to the inner side of the bell tube, and a pair of limit rings for limiting the valve core are fixedly connected to the inside of the bell tube;

[0011] The valve core includes a sliding disk that is slidably connected to the inner wall of the bell tube and an extrusion rod fixedly connected to the sliding disk. The diameter of the extrusion rod is smaller than the diameter of the limit ring and it extends to below the lower limit ring. A spring is abutted between the sliding disk and the lower limit ring; the liquid injection pipe is connected to a liquid injection branch pipe, and the connection point between the liquid injection branch pipe and the bell tube is located on the lower side of the sliding disk. The connection point between the liquid injection branch pipe and the bell tube is fixedly connected to a second one-way valve.

[0012] As a further improvement of the present application, both sides of the mold rod are fixedly connected with a clamping device, the clamping device is connected with a rotating mechanism, the rotating mechanism is fixedly connected with a moving trolley, and the moving trolley is slidably connected with a ground rail.

[0013] As a further improvement of the present application, a pair of guide frames are fixedly connected to the lower end of the shell, guide rollers are rotatably connected inside the guide frames, a collecting plate located below the guide wire ring is abutted inside the guide frames, and a collecting cylinder fixedly connected to the inner wall of the shell is sleeved on the outside of the constraint bar. The collecting cylinder is an axially arranged conical cylinder and a bending groove is provided at the end with a larger opening inner diameter.

[0014] As a further improvement of the present application, the extruded strip is a flat strip with a waist-shaped cross-section, the end face of the extruded strip facing the mold rod is an arc-shaped surface, and the glue suction holes are opened on the side walls on both sides of the arc-shaped surface of the extruded strip.

[0015] As a further improvement of the present application, the negative pressure suction mechanism includes a piston cylinder, which is fixedly connected to a fixing frame fixedly connected to the shell, a piston disk is slidably connected inside the piston cylinder, the piston disk is fixedly connected to a clamping frame extending above the fixing frame, the clamping frame is slidably connected to an eccentric disk, the eccentric disk is fixedly connected to a second motor, the second motor is fixedly connected to the fixing frame, and a first one-way valve is installed at the connection between the suction pipe and the discharge pipe and the piston cylinder, and the two first one-way valves have opposite conduction directions.

[0016] As a further improvement of the present application, the lower end opening of the trumpet tube is in the shape of a trumpet opening, and the lower end of the extrusion rod is pointed and extends into the lower end opening of the trumpet tube.

[0017] As a further improvement of the present application, a pair of annular grooves are provided on the inner circumferential surface and the outer circumferential surface of the guide wire ring, and the inner end opening and the outer end opening of the wire threading hole are respectively connected to the pair of annular grooves.

[0018] To summarize, the present invention provides circumferentially evenly distributed constraint strips to extrude the mold rod circumferentially, thereby improving the bonding tightness and yarn laying quality of the glass fiber on the mold rod, and adjusting the inner diameter of the enclosure of multiple constraint strips by providing a sliding shaft and a groove plate to adapt to the extrusion and shaping requirements of the fiber yarns when laying yarns on mold rods of different specifications; at the same time, by providing glue suction holes and a negative pressure suction mechanism on the extrusion strips, the glue accumulated on the surface after being squeezed out by the constraint strips is collected under negative pressure, thereby reducing the probability of glue accumulation and dripping; in addition, by providing a wire threading hole and a drain pipe on the wire guide ring, the glue collected by the negative pressure suction mechanism is injected into the wire threading hole of the wire guide ring, so that the glass fiber is coated with glue for the second time before winding, overcoming the problem of insufficient glue on the surface of the traditional glass fiber after passing through multiple guide components before winding, improving the bonding effect between the glass fiber and the mold rod, and realizing efficient adjustment of the glue amount before and after the glass fiber winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the yarn laying machine in this application;

[0021] Figure 3 This is a schematic cross-sectional view of the yarn laying machine of the present application;

[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 5 Schematic diagram of the driving state of the constraint strip in this application;

[0024] Figure 6 Schematic diagram of the connection structure of the restraint strips in this application;

[0025] Figure 7 Schematic diagram of the cross-sectional structure of the restraint strip in this application;

[0026] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 9 Schematic diagram of the connection structure of the guide wire ring and the restraint strip in this application;

[0028] Figure 10 This is a schematic diagram of the partial cross-sectional structure of the guide wire ring in this application;

[0029] Figure 11 for Figure 10 Schematic diagram of the enlarged structure at C in the middle;

[0030] Figure 12 for Figure 10 Schematic diagram of the enlarged structure at D in the middle;

[0031] Figure 13 This is a schematic diagram of the three-dimensional structure of the glue-dropping component in this application;

[0032] Figure 14 This is a schematic diagram of the internal structure of the glue dripping component in this application;

[0033] Figure 15 This is a schematic diagram of the glue droplet generation state of the glue droplet assembly in this application;

[0034] Figure 16 This is a schematic diagram of the state of the valve core blocking the liquid injection branch pipe in this application.

[0035] Description of the numbers in the figure:

[0036] 1. Yarn laying machine; 2. Die rod; 3. Moving trolley; 4. Clamping device; 5. Ground rail; 6. Housing; 7. Wire guide ring; 701. Threading hole; 702. Annular channel; 703. Axial channel; 704. Annular groove; 8. Guide frame; 9. Guide roller; 10. Collecting plate; 11. Constraint bar; 1101. Extrusion bar; 1102. First end block; 1103. Second end block; 1104. Glue suction channel; 1105. Glue suction hole; 1106. Annular cavity; 12. Fixed shaft; 13. Sliding shaft; 14. Slotted plate; 1401. Guide groove; 15. Gear Disc; 16. Drive gear; 17. First motor; 18. Hose; 19. Annular tube; 20. Liquid extraction tube; 21. Negative pressure suction mechanism; 2101. Piston cylinder; 2102. Piston disc; 2103. Snap-on frame; 2104. Eccentric disc; 2105. Second motor; 22. Liquid discharge pipe; 23. Fixed frame; 24. Fixed cylinder; 25. Collecting cylinder; 26. Bell tube; 2601. Limiting ring; 27. Liquid injection tube; 28. Liquid injection branch; 29. ​​Valve core; 2901. Sliding disc; 2902. Extrusion rod; 30. Spring; 31. Second one-way valve. DETAILED DESCRIPTION

[0037] The following describes two implementation methods of the present application in detail with reference to the accompanying drawings.

[0038] The first implementation method:

[0039] Figures 1-11 A yarn laying assembly for a composite material rod production line is shown, including a yarn laying machine 1; the yarn laying machine 1 includes a shell 6, a plurality of constraint bars 11 uniformly distributed in a circumference are provided in the shell 6, the inner side of the constraint bar 11 abuts against the outer wall of the mold rod 2, the constraint bar 11 includes an extrusion bar 1101 and a first end block 1102 and a second end block 1103 respectively fixed to the two side ends of the extrusion bar 1101, the first end block 1102 is rotatably connected to a fixed shaft 12, the fixed shaft 12 is fixedly connected to the inner wall of the shell 6, the second end block 1103 is fixedly connected to a sliding shaft 13, the sliding shaft 13 is slidably connected to a slotted plate 14, and the slotted plate 14 is fixed to the first end block 1102. A guide groove 1401 is provided for the sliding shaft 13 to slide, and the groove disk 14 is fixedly connected to a toothed disk 15 rotatably connected to the inner wall of the shell 6. The toothed disk 15 is engaged with a driving gear 16, and the driving gear 16 is fixedly connected to the output shaft of the first motor 17. The first motor 17 is fixedly connected to the shell 6; the first motor 17 drives the toothed disk 15 to rotate through the driving gear 16, and the toothed disk 15 drives the groove disk 14 to rotate. The groove disk 14 squeezes the sliding shaft 13 at the end of the constraint strip 11, so that multiple constraint strips 11 distributed in a circle are deformed synchronously, and the glass fiber on the surface of the mold rod 2 with different diameter specifications is squeezed and shaped.

[0040] See also Figure 7 、 Figure 8 and Figure 9A glue suction channel 1104 is provided in the extrusion strip 1101 along its length direction, and a plurality of glue suction holes 1105 are provided on the outer wall of the extrusion strip 1101, which are equidistantly distributed and connected to the glue suction channel 1104. An annular cavity 1106 connected to the glue suction channel 1104 is provided in the first end block 1102, and the first end block 1102 is fixedly connected to a hose 18 connected to the annular cavity 1106, and the hose 18 is fixedly connected to an annular tube 19 fixedly connected to the inner wall of the shell 6. The annular tube 19 is connected to a negative pressure suction mechanism 21 through a liquid suction pipe 20. The negative pressure suction mechanism 21 puts the annular cavity 1106 and the glue suction channel 1104 in a negative pressure state through the liquid suction pipe 20, and performs negative pressure suction on the glue accumulated on the surface of the extrusion strip 1101 through the glue suction holes 1105.

[0041] See also Figure 11 The outer wall of the shell 6 is fixedly connected to the wire guide ring 7 through the fixed tube 24. Two groups of wire threading holes 701 distributed in a circumferential manner are provided on the wire guide ring 7. An annular channel 702 located between the two groups of wire threading holes 701 is provided inside the wire guide ring 7. The upper end of the wire guide ring 7 is fixedly connected to a drain pipe 22 connected to the annular channel 702. The drain pipe 22 is connected to the liquid outlet end of the negative pressure suction mechanism 21, and the wire threading hole 701 is connected to the annular channel 702 through the axial channel 703; the negative pressure suction mechanism 21 injects the extracted glue into the annular channel 702 of the wire guide ring 7 through the drain pipe 22, and then injects it into the wire threading hole 701 through the axial channel 703. The glass fiber passing through the wire threading hole 701 is in full contact with the glue injected into the wire threading hole 701, and the glass fiber is coated with glue twice before winding.

[0042] Compared with the traditional yarn laying device, the present invention is provided with constraint strips 11 evenly distributed on the circumference, which circumferentially extrude mold rods 2 of different diameters, thereby improving the adhesion of glass fibers on the mold rods 2 and improving the yarn laying quality. The sliding shaft 13 and the groove plate 14 are provided to adjust the inner diameter of the multiple constraint strips 11 to meet the extrusion and shaping requirements of the fiber filaments when laying yarns with mold rods 2 of different specifications. At the same time, the glue suction holes 1105 and the negative pressure suction mechanism 21 are provided on the extrusion strips 1101 to suck the glue accumulated on the surface after being squeezed out by the constraint strips 11. Negative pressure collection is performed to reduce the probability of glue accumulation and dripping, and reduce the dripping contamination of glue to the yarn laying machine 1; in addition, the glue collected by the negative pressure suction mechanism 21 is injected into the wire hole 701 of the wire guide ring 7 through the wire hole 701 and the drain pipe 22 provided on the wire guide ring 7, so that the glass fiber is coated with glue for the second time before winding, overcoming the problem of insufficient surface glue of traditional glass fiber after passing through multiple guide components before winding, improving the bonding effect of the glass fiber and the mold rod 2, and realizing efficient adjustment of the glue amount before and after the glass fiber winding.

[0043] See also Figure 1Both sides of the mold rod 2 are fixedly connected with a clamping device 4, the clamping device 4 is connected to a rotating mechanism, the rotating mechanism is fixedly connected with a moving trolley 3, and the moving trolley 3 is slidably connected with a ground rail 5.

[0044] Specifically, when the glass fiber is wound, the mold rod 2 is driven to move laterally by a pair of moving trolleys 3. At the same time, the rotating mechanism drives the mold rod 2 to rotate through the clamping device 4, thereby realizing the axial rotational winding of the glass fiber on the mold rod 2. It should be noted that the moving trolley is equipped with a power mechanism, and the power mechanism and the rotating mechanism (not shown in the figure) are both existing technologies and will not be described in detail in this application.

[0045] See also Figure 1 A pair of guide frames 8 are fixedly connected to the lower end of the shell 6, and a guide roller 9 is rotatably connected inside the guide frame 8. A collecting plate 10 located below the guide wire ring 7 is abutted inside the guide frame 8. A collecting cylinder 25 fixedly connected to the inner wall of the shell 6 is sleeved on the outside of the constraint bar 11. The collecting cylinder 25 is an axially arranged conical cylinder and a bending groove is provided at the end with a larger inner diameter of the opening.

[0046] Specifically, the glass fiber soaked in glue passes through the guide roller 9 and then enters the wire threading hole 701. The glue accumulated on the guide roller 9 and the wire guide ring 7 is collected by the collecting plate 10 after dripping. The glue dripping at the position of the constraint strip 11 is collected by the collecting tube 25, and the glue flows into the bending groove through the inner wall of the collecting tube 25.

[0047] See also Figure 3 、 Figure 7 and Figure 8 The extrusion strip 1101 is a flat strip with a waist-shaped cross section. The end face of the extrusion strip 1101 facing the mold rod 2 is an arc-shaped surface, and the glue suction holes 1105 are opened on the side walls of the extrusion strip 1101 on both sides of the arc-shaped surface.

[0048] Specifically, the extrusion strip 1101 with an arc-shaped contact surface has a good extrusion effect on the laid glass fiber on the mold rod 2 and reduces the probability of damaging the glass fiber. At the same time, it has a good scraping and collection effect on the glue, further reducing the probability of glue dripping.

[0049] Second implementation method:

[0050] Figure 12-16A yarn laying assembly for a composite rod production line is shown. Based on the first embodiment, a glue dripping assembly is provided within the wire guide ring 7. The glue dripping assembly includes a bell tube 26 fixedly connected to the wire guide ring 7 and extending to its inner end surface. The outer end of the bell tube 26 extends into the annular channel 702. A pair of liquid injection tubes 27 are fixedly connected to the upper portion of the bell tube 26. The pair of liquid injection tubes 27 pass through the axial channel 703 and communicate with the wire threading hole 701. A valve core 29 is slidably connected to the inner side of the bell tube 26. A pair of limit rings 2601 for limiting the valve core 29 are fixedly connected to the inside of the bell tube 26.

[0051] See also Figure 11 and Figure 14 The valve core 29 includes a sliding disk 2901 that is slidably connected to the inner wall of the bell tube 26 and an extrusion rod 2902 that is fixedly connected to the sliding disk 2901. The diameter of the extrusion rod 2902 is smaller than the diameter of the limit ring 2601 and it extends to the bottom of the lower limit ring 2601. A spring 30 is abutted between the sliding disk 2901 and the lower limit ring 2601. The spring 30 enables the sliding disk 2901 of the valve core 29 to block the connecting openings between the bell tube 26 and the injection tube 27 when no external force is applied; the injection tube 27 is connected to the injection branch tube 28. The connection point between the injection branch tube 28 and the bell tube 26 is located on the lower side of the sliding disk 2901. The connection point between the injection branch tube 28 and the bell tube 26 is fixedly connected to a second one-way valve 31.

[0052] For details, please refer to Figure 15 and Figure 16 , when the negative pressure suction mechanism 21 injects glue into the annular channel 702 through the discharge pipe 22, as the glue pressure in the annular channel 702 increases, the valve core 29 is squeezed, so that the sliding plate 2901 moves to the bottom of the connecting port between the injection pipe 27 and the bell tube 26, and the glue is injected into the injection pipe 27. Part of the glue that enters the injection pipe 27 enters the threading hole 701, and another part of the glue enters the cavity below the sliding plate 2901 in the bell tube 26 through the injection branch pipe 28. The glue is discharged from the lower end of the bell tube 26. When the glue pressure continues to increase, the sliding plate 2901 blocks the connecting port between the injection branch pipe 28 and the bell tube 26, and the glue can only be injected into the threading hole 701;

[0053] By periodically changing the suction pressure of the negative pressure suction mechanism 21, the pressure of the glue is changed, and the valve core 29 is periodically moved up and down, so that the glue flowing out of the trumpet tube 26 is in the shape of water drops. The glue drops dripped from the glue dripping assembly located on the upper part of the wire guide ring 7 drip onto the glass fiber below it under the action of gravity, which makes it easier to form accumulated glue clumps on the glass fiber. Then, part of the glue clumps break away from the glass fiber under the action of gravity and continue to drip, and drip directly onto the mold rod 2. The mold rod 2 rotates and moves axially, and pre-coats the part of the mold rod 2 to be wound with glue, thereby improving the subsequent winding and bonding effect of the glass fiber and the mold rod 2.

[0054] See also Figure 4 and Figure 9 The negative pressure suction mechanism 21 includes a piston cylinder 2101, which is fixedly connected to a fixing frame 23 fixedly connected to the housing 6, and a piston disc 2102 is slidably connected inside the piston cylinder 2101, and the piston disc 2102 is fixedly connected to a clamping frame 2103 extending above the fixing frame 23, and the clamping frame 2103 is slidably connected to an eccentric disc 2104, and the eccentric disc 2104 is fixedly connected to a second motor 2105, and the second motor 2105 is fixedly connected to the fixing frame 23. A first one-way valve is installed at the connection between the liquid suction pipe 20 and the liquid discharge pipe 22 and the piston cylinder 2101, and the conduction directions of the two first one-way valves are opposite.

[0055] Specifically, the second motor 2105 drives the eccentric disk 2104 to rotate, the eccentric disk 2104 drives the clamping frame 2103 to move up and down, and the clamping frame 2103 drives the piston disk 2102 to move up and down in the piston cylinder 2101, thereby realizing the extraction and discharge of glue. When the piston cylinder 2101 extracts glue, the glue pressure in the annular channel 702 of the guide wire ring 7 decreases, and returns to the initial position under the action of the spring 30, thereby blocking the upper end inlet of the trumpet tube 26; when the piston cylinder 2101 injects glue, the pressure in the annular channel 702 gradually increases, causing the valve core 29 to move downward, squeezing out the glue retained in the lower inner cavity of the trumpet tube 26.

[0056] See also Figure 13 and Figure 14 The lower end opening of the trumpet tube 26 is trumpet-shaped, and the lower end of the extrusion rod 2902 is pointed and extends into the lower end opening of the trumpet tube 26.

[0057] Specifically, when the valve core 29 moves downward to the lowest point, the squeezing rod 2902 extends into the inner central cavity of the guide wire ring 7, so that the glue drips along the squeezing rod 2902, making it easier to form glue drops.

[0058] See also Figure 10 and Figure 12A pair of annular grooves 704 are formed on the inner and outer circumferential surfaces of the wire guide ring 7 , and the inner and outer openings of the wire threading hole 701 are respectively connected to the pair of annular grooves 704 .

[0059] Specifically, after the glue is discharged from the glue dripping assembly at the bottom of the wire guide ring 7, it flows into the annular groove 704 and then accumulates in the annular groove 704, soaking the glass fiber passing through the lower wire hole 701, further increasing the amount of glue coating on the glass fiber surface and reducing glue dripping and waste.

[0060] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A yarn laying assembly for a composite material rod production line, characterized in that: The invention comprises a yarn laying machine (1), wherein the yarn laying machine (1) comprises a shell (6), wherein a plurality of constraint bars (11) are evenly distributed in a circumference are provided in the shell (6), wherein the inner side of the constraint bar (11) abuts against the outer wall of the mold rod (2), wherein the constraint bar (11) comprises an extrusion bar (1101) and a first end block (1102) and a second end block (1103) respectively fixed at both ends of the extrusion bar (1101), wherein the first end block (1102) is rotatably connected to a fixed shaft (12), and the fixed shaft (12 ) is fixedly connected to the inner wall of the housing (6), the second end block (1103) is fixedly connected to a sliding shaft (13), the sliding shaft (13) is slidably connected to a groove plate (14), the groove plate (14) is provided with a guide groove (1401) for the sliding of the sliding shaft (13), the groove plate (14) is fixedly connected to a toothed plate (15) rotatably connected to the inner wall of the housing (6), the toothed plate (15) is meshed with a driving gear (16), and the driving gear (16) is fixedly connected to the output shaft of the first motor (17); The extrusion strip (1101) is provided with a glue suction channel (1104) arranged along its length direction, the outer wall of the extrusion strip (1101) is provided with a plurality of glue suction holes (1105) distributed at equal intervals and connected to the glue suction channel (1104), the first end block (1102) is provided with an annular cavity (1106) connected to the glue suction channel (1104), the first end block (1102) is fixedly connected to a hose (18) connected to the annular cavity (1106), the hose (18) is fixedly connected to an annular tube (19) fixedly connected to the inner wall of the shell (6), and the annular tube (19) is connected to a negative pressure suction mechanism (21) through a liquid extraction tube (20); The outer wall of the shell (6) is fixedly connected to a wire guide ring (7) via a fixing cylinder (24), and two groups of threading holes (701) distributed in a circumferential manner are provided on the wire guide ring (7). An annular channel (702) located between the two groups of threading holes (701) is provided inside the wire guide ring (7), and a liquid discharge pipe (22) connected to the annular channel (702) is fixedly connected to the upper end of the wire guide ring (7), and the liquid discharge pipe (22) is connected to the liquid outlet end of the negative pressure suction mechanism (21), and the threading holes (701) are connected to the annular channel (702) via an axial channel (703).

2. A yarn laying assembly for a composite material rod production line according to claim 1, characterized in that: The guide wire ring (7) is provided with a glue dripping assembly, which includes a bell tube (26) fixedly connected to the guide wire ring (7) and extending to the inner end surface thereof, the outer end of the bell tube (26) extends into the annular channel (702), the upper part of the bell tube (26) is fixedly connected to a pair of injection tubes (27), the pair of injection tubes (27) pass through the axial channel (703) and are connected to the wire threading hole (701), the inner side of the bell tube (26) is slidably connected to a valve core (29), and the bell tube (26) is fixedly connected to a pair of limit rings (2601) for limiting the valve core (29); The valve core (29) comprises a sliding disc (2901) slidably connected to the inner wall of the bell tube (26) and an extrusion rod (2902) fixedly connected to the sliding disc (2901). The diameter of the extrusion rod (2902) is smaller than the diameter of the limit ring (2601) and extends below the lower limit ring (2601). A spring (30) abuts between the sliding disc (2901) and the lower limit ring (2601). The injection pipe (27) is connected to an injection branch pipe (28). The connection point between the injection branch pipe (28) and the bell tube (26) is located on the lower side of the sliding disc (2901). A second one-way valve (31) is fixedly connected to the connection point between the injection branch pipe (28) and the bell tube (26).

3. The yarn laying assembly for a composite material rod production line according to claim 1, characterized in that: Both sides of the mold rod (2) are fixedly connected to a clamping device (4), the clamping device (4) is connected to a rotating mechanism, the rotating mechanism is fixedly connected to a moving trolley (3), and the moving trolley (3) is slidably connected to a ground rail (5).

4. The yarn laying assembly for a composite material rod production line according to claim 1, characterized in that: A pair of guide frames (8) are fixedly connected to the lower end of the shell (6), a guide roller (9) is rotatably connected inside the guide frame (8), a collecting plate (10) located below the wire guide ring (7) is abutted inside the guide frame (8), and a collecting cylinder (25) fixedly connected to the inner wall of the shell (6) is sleeved on the outer side of the constraint bar (11), and the collecting cylinder (25) is an axially arranged conical cylinder and a bending groove is provided at the end with a larger inner diameter of the opening.

5. The yarn laying assembly for a composite material rod production line according to claim 1, characterized in that: The extrusion strip (1101) is a flat strip with a waist-shaped cross section. The end surface of the extrusion strip (1101) facing the mold rod (2) is an arc-shaped surface, and the glue suction holes (1105) are opened on the side walls of the extrusion strip (1101) on both sides of the arc-shaped surface.

6. The yarn laying assembly for a composite material rod production line according to claim 2, characterized in that: The negative pressure suction mechanism (21) comprises a piston cylinder (2101), the piston cylinder (2101) being fixedly connected to a fixing frame (23) fixedly connected to the housing (6), a piston disc (2102) being slidably connected in the piston cylinder (2101), the piston disc (2102) being fixedly connected to a clamping frame (2103) extending above the fixing frame (23), the clamping frame (2103) being slidably connected to an eccentric disc (2104), the eccentric disc (2104) being fixedly connected to a second motor (2105), the second motor (2105) being fixedly connected to the fixing frame (23), and a first one-way valve being installed at a connection point between the liquid extraction pipe (20) and the liquid discharge pipe (22) and the piston cylinder (2101), the two first one-way valves having opposite conduction directions.

7. The yarn laying assembly for a composite material rod production line according to claim 2, characterized in that: The lower end opening of the trumpet tube (26) is in the shape of a trumpet opening, and the lower end of the extrusion rod (2902) is pointed and extends into the lower end opening of the trumpet tube (26).

8. The yarn laying assembly for a composite material rod production line according to claim 2, characterized in that: The inner circumferential surface and the outer circumferential surface of the guide wire ring (7) are both provided with a pair of annular grooves (704), and the inner end opening and the outer end opening of the wire threading hole (701) are respectively communicated with the pair of annular grooves (704).

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