A long glass fiber direct injection molding equipment

Abstract

This invention discloses a direct injection molding device for long glass fibers, comprising a worktable. An injection molding assembly is mounted on one side of the upper surface of the worktable. A mixing and ejection assembly is sealed and mounted on the output side of the injection molding assembly. A fiber drawing assembly is mounted on the upper surface of the worktable, located on the output side of the mixing and ejection assembly. A fiber cutting assembly is mounted on the output side of the fiber drawing assembly. A tension testing assembly is mounted on the output side of the fiber cutting assembly. A fiber feeding assembly is mounted on the output side of the tension testing assembly. After the mixing and ejection assembly injects the fiber, the coordinated operation of the fiber drawing assembly, tension testing assembly, and fiber feeding assembly ensures better fiber delivery. A multi-stage tension control structure ensures the orientation and stress stability of the glass fibers during drawing. The fiber cutting assembly can quickly cut the fibers in the fiber drawer as needed, achieving continuous production and adjusting the basic length of the glass fibers in the product, further improving the efficiency of glass fiber production.

Description

Technical Field

[0001] This invention relates to the field of long glass fiber molding technology, specifically to a long glass fiber direct injection molding equipment. Background Technology

[0002] Long glass fiber injection molding is an advanced materials processing technology that combines the high strength of long glass fiber reinforcement with the processability of thermoplastics, resulting in advantages such as good mechanical properties, recyclability, light weight, and low cost. Therefore, long glass fiber injection molding technology is mainly used to produce composite material parts with excellent mechanical properties and structural integrity, and is widely used in industries such as automotive, aerospace, electronics, and sporting goods. However, existing long glass fiber injection molding equipment has some shortcomings.

[0003] In the injection molding process of long glass fiber reinforced materials, fiber breakage and repositioning are issues that affect the mechanical properties of the composite material. Maintaining fiber length is crucial for the reinforcing effect of the composite. However, in actual production, fibers may shorten due to mechanical stress during injection molding, thus affecting product performance and quality. Therefore, there is a need for a direct injection molding equipment for long glass fibers. Summary of the Invention

[0004] The purpose of this invention is to provide a direct injection molding device for long glass fibers, which, through a multi-stage tension control structure, ensures the orientation state and stress stability of the glass fibers during drawing, thereby solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a long glass fiber direct injection molding equipment, comprising a worktable, an injection molding component mounted on one side of the upper surface of the worktable, a mixing and ejection component sealed on the output side of the injection molding component, a fiber drawing component mounted on the upper surface of the worktable at the output side of the mixing and ejection component, a fiber cutting component mounted on the output side of the fiber drawing component, a tension testing component mounted on the output side of the fiber cutting component, a fiber feeding component mounted on the output side of the tension testing component, and a winding component mounted on the output side of the fiber feeding component.

[0006] The mixing and ejection assembly includes a connecting flange that is sealed to the output position of the injection molding assembly. A filler core is threaded onto the outer end of the connecting flange. The filler core has a hollow structure inside. A material filling port is installed through the outer arc surface of the filler core. A nozzle is sealed and installed on the outer side of the filler core. A mixing core is installed on one side of the nozzle corresponding to the inside of the filler core. Two sets of mixing ports are opened through the inside of the mixing core. The mixing core is sealed and inserted into the inside of the filler core, and the mixing core is locked and connected to the filler core by a sealing nut.

[0007] Preferably, the injection molding assembly includes an injection barrel mounted on the upper part of the worktable, a hopper is installed through the upper part of the outer arc surface of the injection barrel, a plurality of vent holes are equidistantly opened through the outer arc surface of the injection barrel on one side of the hopper, an injection head for connecting with the mixing and ejection assembly is connected to the output end of the injection barrel, and a heating cylinder is fitted and sleeved on the outer arc surface of the injection barrel near the injection head.

[0008] Preferably, two sets of first mounting brackets are symmetrically sleeved on the outer arc surface of the injection molding machine barrel, and the first mounting brackets are bolted to the upper surface of the worktable. A first motor is installed outside one end of the injection molding machine barrel at the hopper. A feeding push rod is key-connected to the output end of the first motor, and the feeding push rod is rotatably installed inside the injection molding machine barrel.

[0009] Preferably, the wire drawing assembly includes a mounting base installed on the upper surface of the workbench. Two sets of L-shaped fixing plates are symmetrically bolted to both sides of the mounting base. The L-shaped fixing plates are bolted to the upper surface of the workbench. A feeding port is provided on the upper part of the mounting base, and a limiting groove is provided on one side of the mounting base located at the feeding port. A positioning frame is bolted to the other side of the mounting base corresponding to the limiting groove. A second motor is installed on the upper part of the positioning frame, and a coupling is keyed to the output end of the second motor.

[0010] Preferably, two sets of feeding rollers are rotatably mounted inside the feeding port, with a protective groove opened in the middle of each set of feeding rollers. One end of the central shaft of each set of feeding rollers is keyed to a coupling, and the other end of the central shaft of the feeding roller is rotatably mounted inside a limiting groove. The other end of the central shaft of the feeding roller extends out from inside the limiting groove and is threaded with a limiting nut.

[0011] Preferably, the shredding assembly includes a base mounted on the upper surface of the workbench, a pressure tester mounted on the upper part of the base, two sets of first limiting rods symmetrically mounted on both sides of the pressure tester on the upper surface of the base, a cutter disposed between the two sets of first limiting rods on the upper part of the cutting table, a cutting table bolted to the top of the pressure tester, and a V-groove formed on the upper surface of the cutting table.

[0012] Preferably, a second mounting bracket is bolted to the upper surface of the workbench corresponding to the base mounting position. A third motor is mounted at the center of the top of the second mounting bracket. An internally threaded tube is keyed to the output end of the third motor. An externally threaded push rod is installed inside the internally threaded tube. A limit plate is fixedly mounted at the bottom of the externally threaded push rod. A limit seat is fixedly mounted at the top of the cutter. The limit plate is rotatably mounted inside the limit seat. Two sets of first sleeves are symmetrically mounted on both sides of the cutter. The first sleeves slide around the outer arc surface of the first limit rod.

[0013] Preferably, the tension testing assembly includes a mounting platform installed on the upper surface of a workbench. An electric push rod is fixed to the upper surface of the mounting platform. Two sets of second limiting rods are symmetrically installed on the upper surface of the mounting platform behind the electric push rod. A pressure gauge is bolted to the top of the electric push rod. An L-shaped mounting plate is bolted to the upper surface of the pressure gauge. A groove is formed in the middle of the L-shaped mounting plate. Two sets of second sleeves are installed on the rear side of the L-shaped mounting plate corresponding to the two sets of second limiting rods. A main force measuring roller is rotatably installed on the front side of the L-shaped mounting plate corresponding to the groove. Two sets of secondary force measuring rollers are symmetrically rotatably installed on one side of the L-shaped mounting plate on both sides of the main force measuring roller. The central shaft of the main force measuring roller extends from inside the groove and is threaded with a positioning nut.

[0014] Preferably, the wire feeding assembly includes a base plate mounted on the upper surface of the workbench, and two sets of third limiting rods are installed in the middle of the upper surface of the base plate, with a feeding tube passing through the middle of the two sets of third limiting rods.

[0015] Preferably, the winding assembly includes a frame mounted on the upper surface of the workbench, a guide roller rotatably mounted on the upper surface of the frame, and a winding roller rotatably mounted inside the frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By using a mixing and ejection assembly, long glass fibers can be injected into the mold cavity along with the plastic material during injection, reducing the breakage rate of long glass fibers. At the same time, since the injection molding assembly is used in a modular manner, the device is easier to maintain and repair.

[0018] After the filament is ejected from the mixing and ejection assembly, the filament can be fed out more effectively through the cooperation of the filament drawing assembly, tension testing assembly, and filament feeding assembly. The multi-stage tension control structure ensures the orientation and stress stability of the glass fiber during filament drawing. The filament cutting assembly can quickly cut the fiber in the filament drawer as needed to achieve production continuity and adjust the basic length of the glass fiber in the product, further improving the efficiency of glass limit production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the injection molding component of the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the mixing and spraying assembly of the present invention;

[0022] Figure 4 This is a schematic diagram of the overall structure of the wire drawing assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the overall disassembly of the shredding assembly of the present invention;

[0024] Figure 6 This is a schematic diagram of the overall structure of the tension testing component of the present invention;

[0025] Figure 7 This is a schematic diagram of the overall structure of the wire feeding assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the overall structure of the winding assembly of the present invention;

[0027] Figure 9 This is a schematic diagram of the overall structure of the winding assembly of the present invention.

[0028] In the diagram: 1. Workbench; 2. Injection molding assembly; 3. Wire drawing assembly; 4. Wire cutting assembly; 5. Tension testing assembly; 6. Wire feeding assembly; 7. Winding assembly; 8. Injection barrel; 9. Hopper; 10. Vent hole; 11. Injection head; 12. Heating cylinder; 13. First mounting bracket; 14. First motor; 15. Feed push rod; 16. Connecting flange; 17. Filler core; 18. Sealing joint; 19. Material filling port; 20. Nozzle; 21. Mixing core; 22. Mixing port; 23. Sealing nut; 24. Mounting base; 25. L-shaped fixing plate; 26. Limiting groove; 27. Positioning frame; 28. Second motor; 29. ​​Feeding roller; 30. Protective groove; 31. Limiting nut; 3 2. Base; 33. Pressure tester; 34. First limit rod; 35. Cutting table; 36. V-groove; 37. Second mounting bracket; 38. Third motor; 39. Internal threaded tube; 40. External threaded push rod; 41. Limiting plate; 42. Cutter; 43. First sleeve; 44. Limiting seat; 45. Mounting platform; 46. Electric push rod; 47. Second limit rod; 48. Pressure gauge; 49. L-shaped mounting plate; 50. Slide groove; 51. Second sleeve; 52. Main force measuring roller; 53. Slave force measuring roller; 54. Positioning nut; 55. Base plate; 56. Third limit rod; 57. Feeding pipe; 58. Frame; 59. Guide roller; 60. Take-up roller; 61. Mixing and spraying assembly. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] This invention provides: a direct injection molding device for long glass fibers, such as... Figures 1-9 As shown, the system includes a workbench 1, an injection molding assembly 2 mounted on one side of the upper surface of the workbench 1, a mixing and ejection assembly 61 sealed on the output side of the injection molding assembly 2, a wire drawing assembly 3 mounted on the upper surface of the workbench 1 at the output side of the mixing and ejection assembly 61, a wire cutting assembly 4 mounted on the output side of the wire drawing assembly 3, a tension testing assembly 5 mounted on the output side of the wire cutting assembly 4, a wire feeding assembly 6 mounted on the output side of the tension testing assembly 5, and a winding assembly 7 mounted on the output side of the wire feeding assembly 6.

[0032] The mixing and ejection assembly 61 includes a connecting flange 16 that is sealed to the output position of the injection molding assembly 2. A filler core 17 is threaded onto the outer end of the connecting flange 16. The filler core 17 has a hollow internal structure. A filling port 19 is installed through the outer arc surface of the filler core 17. A nozzle 20 is sealed onto the outside of the filler core 17. A mixing core 21 is installed through the nozzle 20 on one side of the inside of the filler core 17. Two sets of mixing ports 22 are opened through the mixing core 21. The mixing core 21 is sealed and inserted into the inside of the filler core 17. The mixing core 21 is locked to the filler core 17 by a sealing nut 23. The mixing and ejection assembly 61 is composed of multiple structures. The device allows for adjustments and replacements of the mixing and injection structures, such as the nozzle 20, according to specific usage needs, greatly improving the overall ease of use and maintenance. During operation, the glass fiber bundle enters the filler core 17 through the inside of the connecting flange 16. The filler core 17 serves as a mixing chamber. The molten plastic raw material in the storage section is injected into the filler core 17 after melting in the injection barrel 8. Subsequently, additional long glass fibers can be injected into the filler core 17 through the feeding port 19 for mixing. After mixing is completed through two sets of mixing ports 22, the mixture is discharged through the outer outlet of the nozzle 20, completing the mixing and discharge process.

[0033] Preferably, the injection molding assembly 2 includes an injection barrel 8 mounted on the upper part of the worktable 1. A hopper 9 is installed through the upper part of the outer arc surface of the injection barrel 8. Several sets of vent holes 10 are equidistantly opened through the outer arc surface of the injection barrel 8 on one side of the hopper 9. An injection head 11 for connecting with the mixing and spraying assembly 61 is connected to the output end of the injection barrel 8. A heating cylinder 12 is fitted and sleeved on the outer arc surface of the injection barrel 8 near the injection head 11. The injection barrel 8 has a cavity inside for heating and storing molten material. Multiple vent holes 10 are arranged as needed at the uppermost axis of the injection barrel 8 to discharge the gas generated when heating the raw material.

[0034] Furthermore, two sets of first mounting brackets 13 are symmetrically fitted onto the outer arc surface of the injection barrel 8, and the first mounting brackets 13 are bolted to the upper surface of the worktable 1. A first motor 14 is installed outside one end of the injection barrel 8 at the hopper 9. A feeding push rod 15 is keyed to the output end of the first motor 14. The feeding push rod 15 is rotatably installed inside the injection barrel 8. The first mounting brackets 13 limit the usage position of the injection barrel 8. The material fed from inside the heating cylinder 12 is pushed by the operation of the first motor 14, and the heating treatment of the raw material is completed by the heating cylinder 12.

[0035] Furthermore, the wire drawing assembly 3 includes a mounting base 24 installed on the upper surface of the workbench 1. Two sets of L-shaped fixing plates 25 are symmetrically bolted to both sides of the mounting base 24. The L-shaped fixing plates 25 are bolted to the upper surface of the workbench 1. A feeding port is opened on the upper part of the mounting base 24, and a limiting groove 26 is opened on one side of the mounting base 24 at the feeding port. A positioning frame 27 is bolted to the other side of the mounting base 24 corresponding to the limiting groove 26. A second motor 28 is installed on the upper part of the positioning frame 27. A coupling is keyed to the output end of the second motor 28. The L-shaped fixing plates 25 are used to assist in limiting the mounting base 24, making the mounting base 24 more stable in use. The feeding port opened on the upper part of the mounting base 24 is used to limit the two sets of feeding rollers 29, making the feeding rollers 29 more stable when rotating to complete the feeding work.

[0036] It is worth noting that two sets of feeding rollers 29 are mounted rotatably and closely inside the feeding port. Each set of feeding rollers 29 has a protective groove 30 in the middle. One end of the central shaft of each set of feeding rollers 29 is keyed to the coupling. The other end of the central shaft of the feeding rollers 29 is rotatably mounted inside the limiting groove 26. The other end of the central shaft of the feeding rollers 29 extends out from the limiting groove 26 and is threaded with a limiting nut 31. The protective groove 30 in the middle of the feeding rollers 29 presses and feeds the wire. The operation of the second motor 28 controls the relative rotation of the two sets of feeding rollers 29 to continuously complete the wire feeding work.

[0037] Specifically, the filament cutting assembly 4 includes a base 32 mounted on the upper surface of the worktable 1. A pressure tester 33 is mounted on the upper part of the base 32. Two sets of first limit rods 34 are symmetrically mounted on both sides of the pressure tester 33 on the upper surface of the base 32. A cutter 42 is set between the two sets of first limit rods 34 on the upper part of the cutting table 35. The cutting table 35 is bolted to the top of the pressure tester 33. A V-groove 36 is opened on the upper surface of the cutting table 35. The top of the cutting table 35 is the filament cutting surface. Cross-shaped V-grooves 36 with angles of 30 degrees and 45 degrees are opened on the filament cutting surface. The 30-degree "V" groove is used by the cutter 42 and the cutting blade to generate shearing force to cut the glass fiber bundle. The 45-degree V-groove 36 is the wire feeding groove to prevent the friction between the glass fiber bundle and the cutting surface of the cutting table 35 from being too large during cutting, which would affect the subsequent wire feeding.

[0038] Additionally, a second mounting bracket 37 is bolted to the upper surface of the workbench 1 corresponding to the mounting position of the base 32. A third motor 38 is mounted at the center of the top of the second mounting bracket 37. An internally threaded tube 39 is keyed to the output end of the third motor 38. An externally threaded push rod 40 is installed inside the internally threaded tube 39. A limit plate 41 is fixedly mounted at the bottom of the externally threaded push rod 40. A limit seat 44 is fixedly mounted at the top of the cutter 42. The limit plate 41 is rotatably mounted inside the limit seat 44. Two sets of first sleeves 43 are symmetrically mounted on both sides of the cutter 42. When the sliding sleeve is mounted on the outer arc surface of the first limiting rod 34 and the sliding operation is performed, the third motor 38 rotates rapidly and drives the cutter 42 to move rapidly downward through the thread, contacting the glass fiber bundle and the cutting surface of the cutting table 35, generating a shearing force on the glass fiber bundle. At the same time as generating the shearing force, the cutter 42 will exert downward pressure on the cutting table 35. At this time, the downward pressure is applied to the pressure tester 33 through the cutting table 35, and the pressure tester 33 will deform, thereby detecting whether the pressure during cutting exceeds the limit, in order to prevent the equipment from being damaged due to excessive pressure during cutting.

[0039] Preferably, the tension testing assembly 5 includes a mounting platform 45 mounted on the upper surface of the workbench 1. An electric push rod 46 is fixed to the upper surface of the mounting platform 45. Two sets of second limiting rods 47 are symmetrically mounted on the upper surface of the mounting platform 45 behind the electric push rod 46. A pressure gauge 48 is bolted to the top of the electric push rod 46. An L-shaped mounting plate 49 is bolted to the upper surface of the pressure gauge 48. A groove 50 is provided in the middle of the L-shaped mounting plate 49. Two sets of second sleeves 51 are installed on the rear side of the L-shaped mounting plate 49 corresponding to the two sets of second limiting rods 47. A main force measuring roller is rotatably mounted on the front side of the L-shaped mounting plate 49 corresponding to the position of the groove 50. On one side of the L-shaped mounting plate 49, two sets of slave force measuring rollers 53 are symmetrically rotated and mounted on both sides of the main force measuring roller 52. The central shaft of the main force measuring roller 52 extends from the inside of the slide groove 50 and is threaded with a positioning nut 54. The axes of the slave force measuring rollers 53 on both sides are on the same horizontal plane. The main force measuring roller 52 and the slave force measuring rollers 53 on both sides are arranged alternately, so that when the glass fiber bundle passes through the main force measuring roller 52 and the two sets of slave force measuring rollers 53, it will bend to a certain extent, which will generate pressure on the pressure measuring instrument 48, thereby generating downward pressure on the main force measuring roller 52 on the L-shaped mounting plate 49.

[0040] Specifically, the wire feeding assembly 6 includes a base plate 55 installed on the upper surface of the workbench 1. Two sets of third limiting rods 56 are installed in the middle of the upper surface of the base plate 55. A feeding tube 57 is installed through the middle of the two sets of third limiting rods 56. The two sets of third limiting rods 56 have different heights, which can ensure that the use angle of the feeding tube 57 corresponds to the use position of the winding assembly 7, thereby ensuring the accuracy of wire feeding.

[0041] It is worth noting that the winding assembly 7 includes a frame 58 mounted on the upper surface of the worktable 1. A guide roller 59 is rotatably mounted on the upper surface of the frame 58, and a winding roller 60 is rotatably mounted inside the frame 58. The mounted frame 58 limits the guide roller 59 and the winding roller 60, so that the glass fiber bundle can be better wound up by the rotation of the winding roller 60 through the guide roller 59.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A direct injection molding equipment for long glass fibers, characterized in that: The system includes a workbench (1), an injection molding assembly (2) is installed on one side of the upper surface of the workbench (1), a mixing and ejection assembly (61) is sealed on the output side of the injection molding assembly (2), a wire drawing assembly (3) is installed on the upper surface of the workbench (1) on the output side of the mixing and ejection assembly (61), a wire drawing assembly (4) is installed on the output side of the wire drawing assembly (3), a tension testing assembly (5) is installed on the output side of the wire cutting assembly (4), a wire feeding assembly (6) is installed on the output side of the tension testing assembly (5), and a winding assembly (7) is installed on the output side of the wire feeding assembly (6). The mixing and ejection assembly (61) includes a connecting flange (16) that is sealed to the output position of the injection molding assembly (2). A filler core (17) is threaded on the outer end of the connecting flange (16). The filler core (17) has a hollow structure inside. A filling port (19) is installed through the outer arc surface of the filler core (17). A nozzle (20) is sealed on the outside of the filler core (17). A mixing core (21) is installed in communication with one side of the filler core (17) corresponding to the nozzle (20). Two sets of mixing ports (22) are opened through the mixing core (21). The mixing core (21) is sealed and inserted into the filler core (17). The mixing core (21) is locked to the filler core (17) by a sealing nut (23). The injection molding assembly (2) includes an injection barrel (8) installed on the upper part of the workbench (1). A hopper (9) is installed through the upper part of the outer arc surface of the injection barrel (8). Several sets of vent holes (10) are equidistantly opened through the outer arc surface of the injection barrel (8) on one side of the hopper (9). An injection head (11) for connecting with the mixing and spraying assembly (61) is connected to the output end of the injection barrel (8). A heating cylinder (12) is fitted and sleeved on the outer arc surface of the injection barrel (8) near the injection head (11). Two sets of first mounting brackets (13) are symmetrically sleeved on the outer arc surface of the injection barrel (8), and the first mounting brackets (13) are bolted to the upper surface of the worktable (1). A first motor (14) is installed outside one end of the injection barrel (8) at the hopper (9). A feeding push rod (15) is keyed to the output end of the first motor (14). The feeding push rod (15) is rotatably installed inside the injection barrel (8). The wire drawing assembly (3) includes a mounting base (24) installed on the upper surface of the workbench (1). Two sets of L-shaped fixing plates (25) are symmetrically bolted to both sides of the mounting base (24). The L-shaped fixing plates (25) are bolted to the upper surface of the workbench (1). A feeding port is opened on the upper part of the mounting base (24), and a limiting groove (26) is opened on one side of the mounting base (24) located at the feeding port. A positioning frame (27) is bolted to the other side of the mounting base (24) corresponding to the limiting groove (26). A second motor (28) is installed on the upper part of the positioning frame (27), and a coupling is keyed to the output end of the second motor (28). Two sets of feeding rollers (29) are rotatably mounted inside the feeding port. Each set of feeding rollers (29) has a protective groove (30) in the middle. One end of the central shaft of each set of feeding rollers (29) is keyed to the coupling. The other end of the central shaft of the feeding rollers (29) is rotatably mounted inside the limiting groove (26). The other end of the central shaft of the feeding rollers (29) extends out from inside the limiting groove (26) and is threaded with a limiting nut (31).

2. The long glass fiber direct injection molding equipment according to claim 1, characterized in that: The shredding assembly (4) includes a base (32) mounted on the upper surface of the workbench (1). A pressure tester (33) is mounted on the upper part of the base (32). Two sets of first limiting rods (34) are symmetrically mounted on both sides of the pressure tester (33) on the upper surface of the base (32). A cutter (42) is provided between the two sets of first limiting rods (34) on the upper part of the cutting table (35). The cutting table (35) is bolted to the top of the pressure tester (33). A V-groove (36) is provided on the upper surface of the cutting table (35).

3. The long glass fiber direct injection molding equipment according to claim 2, characterized in that: A second mounting bracket (37) is bolted to the upper surface of the workbench (1) at the mounting position corresponding to the base (32). A third motor (38) is mounted at the center of the top of the second mounting bracket (37). An internal threaded tube (39) is keyed to the output end of the third motor (38). An external threaded push rod (40) is installed inside the internal threaded tube (39). A limit plate (41) is fixedly installed at the bottom of the external threaded push rod (40). A limit seat (44) is fixedly installed at the top of the cutter (42). The limit plate (41) is rotatably installed inside the limit seat (44). Two sets of first sleeves (43) are symmetrically installed on both sides of the cutter (42). The first sleeves (43) slide on the outer arc surface of the first limit rod (34).

4. The long glass fiber direct injection molding equipment according to claim 3, characterized in that: The tension testing assembly (5) includes a mounting platform (45) installed on the upper surface of the workbench (1). An electric push rod (46) is fixed on the upper surface of the mounting platform (45). Two sets of second limiting rods (47) are symmetrically installed on the upper surface of the mounting platform (45) behind the electric push rod (46). A pressure gauge (48) is bolted to the top of the electric push rod (46). An L-shaped mounting plate (49) is bolted to the upper surface of the pressure gauge (48). A groove is provided in the middle of the L-shaped mounting plate (49). 50), two sets of second sleeves (51) are installed on the rear side of the L-shaped mounting plate (49) corresponding to two sets of second limiting rods (47), and a main force measuring roller (52) is rotatably installed on the front side of the L-shaped mounting plate (49) corresponding to the position of the slide groove (50). Two sets of secondary force measuring rollers (53) are symmetrically rotatably installed on one side of the L-shaped mounting plate (49) on both sides of the main force measuring roller (52). The central shaft of the main force measuring roller (52) extends out from the inside of the slide groove (50) and is threaded with a positioning nut (54).

5. The long glass fiber direct injection molding equipment according to claim 4, characterized in that: The wire feeding assembly (6) includes a base plate (55) installed on the upper surface of the workbench (1). Two sets of third limiting rods (56) are installed in the middle of the upper surface of the base plate (55), and a feeding tube (57) is installed through the middle of the two sets of third limiting rods (56).

6. The long glass fiber direct injection molding equipment according to claim 5, characterized in that: The winding assembly (7) includes a frame (58) mounted on the upper surface of the workbench (1), a guide roller (59) rotatably mounted on the upper surface of the frame (58), and a winding roller (60) rotatably mounted inside the frame (58).

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