A long glass fiber direct injection molding apparatus

Abstract

The application relates to a long glass fiber direct injection molding device, which comprises an injection assembly and a yarn guide assembly, the output end of the yarn guide assembly is merged into the output end of the injection assembly, the axis of the output end of the yarn guide assembly and the axis of the output end of the injection assembly form an angle of 45 degrees, the yarn guide assembly is provided with a yarn extractor and a tension detector for detecting and adjusting a glass fiber bundle, and a control module for controlling the injection assembly and the yarn guide assembly is further included. The application reduces the breakage rate of the glass fiber bundle when the glass fiber bundle is mixed with the injection material by setting the angle between the input ends of the injection assembly and the yarn guide assembly to 45 degrees; during the merging of the glass fiber bundle into the injection assembly, the tension of the glass fiber bundle is detected by the tension detector, the glass fiber bundle is adjusted by the yarn extractor according to the detection result, the stress of the glass fiber bundle during the yarn extraction is ensured to be stable, and the breakage rate of the glass fiber during the yarn extraction is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding, and in particular to a long glass fiber direct injection molding device. Background Art

[0002] As product requirements for materials become increasingly stringent, polymers are gaining increasing importance in the manufacturing process. Using long glass fiber injection molding as a plastic modification additive, products produced combine the high strength of long glass fiber reinforcements with the processability of thermoplastics. These products offer advantages such as excellent mechanical properties, recyclability, lightweight construction, and low cost. Consequently, they are widely used in industries such as automotive, aerospace, electronics, and sports equipment.

[0003] During the injection molding process of existing long glass fiber reinforced materials, the long glass fibers are prone to breakage or rearrangement, which can affect the mechanical properties of the composite material. Maintaining the glass fiber length is crucial to the composite material's reinforcement effect. In actual production, the glass fibers may break or shorten due to mechanical stress during the injection molding process, seriously affecting the performance and quality of the product. Summary of the Invention

[0004] Based on this, it is necessary to provide a long glass fiber direct injection molding device to overcome the defects of the existing technology that the glass fibers are prone to breakage or rearrangement during the long glass fiber injection molding process.

[0005] A long glass fiber direct injection molding device includes an injection component and a guide wire component. The output end of the guide wire component merges into the output end of the injection component, and the axis of the output end of the guide wire component forms an angle of forty-five degrees with the axis of the output end of the injection component. The guide wire component is provided with a drawbar and a tension detector for detecting and adjusting the glass fiber bundle, and also includes a control module for controlling the injection component and the guide wire component.

[0006] As a preferred embodiment of the medium-long glass fiber direct injection molding equipment of the present invention, the injection assembly includes an injection barrel and a combined injection head, the output end of the injection barrel is connected to the input end of the combined injection head, and a frame is provided above the mutually connected ends of the injection barrel and the combined injection head.

[0007] As a preferred embodiment of the medium-long glass fiber direct injection molding equipment of the present invention, the injection barrel includes a barrel, a hopper connected to the interior of the barrel is provided above the input end of the barrel, an exhaust hole arranged along the axial direction of the top of the barrel and a heating ring arranged around the barrel is provided at the output end of the barrel, a screw is provided inside the barrel, and the screw can move along the axial direction of the barrel under the drive of the screw motor.

[0008] As a preferred embodiment of the medium and long glass fiber direct injection molding equipment of the present invention, the combined injection head includes a nozzle, which is connected to the output end of the barrel through a nozzle flange, and a wire feeding connector connected to the inside of the nozzle flange is provided on the outside of the nozzle flange and the nozzle connecting end, and the axis of the wire feeding connector is at a forty-five degree angle to the axial direction of the nozzle flange.

[0009] As a preferred embodiment of the direct injection molding equipment for medium-length glass fibers of the present invention, the wire guide assembly is connected to a frame and further includes a wire cutter, a wire guide, and a creel. The tension detector, wire cutter, and wire guide are sequentially arranged between a pair of wire drawers. The glass fiber bundle passes through the wire guide assembly from the creel and then flows into the nozzle flange. As a preferred embodiment of the direct injection molding equipment for medium-length glass fibers of the present invention, the wire drawer, tension detector, wire guide, and wire cutter are interconnected via a wire feed tube.

[0010] As a preferred embodiment of the medium and long glass fiber direct injection molding equipment of the present invention, the extractor includes a extractor housing, which is provided with a extractor channel, and the interior of the extractor housing is provided with roller assemblies with interference fit along opposite sides of the extractor channel, and the exterior side of the extractor housing is provided with a drive assembly rotatably connected to the roller assembly.

[0011] As a preferred embodiment of the medium-length glass fiber direct injection molding equipment of the present invention, the cutter includes a cutter shell, which is provided with a cutting channel. A base assembly and a cutting assembly are respectively provided on opposite sides of the cutting channel inside the cutter shell, and the base assembly and the cutting assembly are connected to each other through a positioning rod.

[0012] As a preferred embodiment of the medium and long glass fiber direct injection molding equipment of the present invention, the tension detector includes a tension detector housing, which is provided with a detection channel, a force measuring base is provided inside the tension detector housing, a force measuring roller is provided above the end of the force measuring base along the axial direction of the detection channel, and a detection component is provided in the middle of the force measuring base below the detection channel.

[0013] As a preferred embodiment of the medium and long glass fiber direct injection molding equipment of the present invention, the wire guide includes a wire guide housing, which is provided with a first wire guide channel and a second wire guide channel. The first wire guide channel and the second wire guide channel form an angle of one hundred and thirty-five degrees inside the wire guide housing, and a wire guide roller assembly is provided at the angle.

[0014] Beneficial effects of the present invention:

[0015] 1. The present invention reduces the breakage rate of the glass fiber bundle when it is mixed with the rubber compound by injection by setting the angle between the input end of the injection assembly and the guide wire assembly to 45 degrees.

[0016] 2. In the process of glass fiber bundles being introduced into the injection assembly, the tension of the glass fiber bundles is detected by a tension detector, and the glass fiber bundles are adjusted by a spinning machine according to the detection result, so as to ensure that the force on the glass fiber bundles is stable during spinning and reduce the breakage rate of the glass fibers during spinning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a schematic structural diagram of the injection molding equipment in an embodiment of the present application;

[0019] Figure 2 This is a schematic cross-sectional view of the injection assembly in an embodiment of the present application;

[0020] Figure 3 This is a schematic cross-sectional view of the combined injection head in an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of a partial cross-sectional structure of a spinning device in an embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of a partial cross-sectional structure of a shredder in an embodiment of the present application;

[0023] Figure 6 This is a schematic diagram of a partial cross-sectional structure of a tension detector in an embodiment of the present application;

[0024] Figure 7 This is a schematic structural diagram of a wire guide in an embodiment of the present application;

[0025] Figure 8 This is a schematic diagram of the cross-sectional structure of the wire guide in the embodiment of the present application;

[0026] Figure 9 This is a schematic structural diagram of the creel in an embodiment of the present application;

[0027] Description of reference numerals:

[0028] 1. Injection barrel; 11. Barrel; 12. Hopper; 13. Exhaust hole; 14. Heating ring; 15. Screw; 16. Screw motor;

[0029] 2. Combined injection head; 21. Nozzle flange; 211. Wire feed hole; 212. Injection hole; 213. Mixing zone; 22. Nozzle; 23. Wire feed connector;

[0030] 3. Wire drawing unit; 31. Wire drawing unit housing; 32. Wire drawing unit housing cover; 33. Wire drawing roller; 34. Wire drawing roller shaft; 35. Coupling; 36. Wire drawing motor;

[0031] 4. Shredder; 41. Shredder base; 42. Cutting table; 43. Cutting knife; 44. Shredder pressure sensor; 45. Positioning rod; 46. Shredder housing; 47. Shredder housing cover; 48. Shredder motor; 49. Shredder motor housing; 410. Shredder motor housing cover;

[0032] 5. Tension detector; 51. Force measuring base; 52. Tension sensor; 53. Force measuring roller; 54. Force measuring roller shaft; 55. Force measuring platform; 56. Stopper; 57. Tension detector housing; 58. Tension detector housing cover;

[0033] 6. Wire feeding tube;

[0034] 7. Wire guide; 71. Wire guide housing; 72. Wire guide roller; 73. Wire guide roller shaft;

[0035] 8. Creel; 81. Spindle unit; 82. Spindle; 83. Spindle shaft; 84. Spindle frame;

[0036] 9. Quick connector;

[0037] 10. Rack. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0041] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] Example

[0045] This embodiment provides a long glass fiber direct injection molding device, such as Figure 1As shown, the system comprises an injection assembly and a guide wire assembly. The guide wire assembly is located on the side of the injection assembly, and its output end merges into the output end of the injection assembly. The glass fiber bundle flows through the guide wire assembly into the injection assembly, where it is mixed with the rubber compound and injected into the mold cavity. To reduce the breakage rate of the glass fiber bundle when entering the injection assembly, the axis of the output end of the guide wire assembly forms a 45-degree angle with the axis of the output end of the injection assembly. To reduce the breakage rate of the glass fiber bundle during transportation within the guide wire assembly, the guide wire assembly is equipped with a reel 3 and a tension detector 5 for detecting and adjusting the tension of the glass fiber bundle. The injection molding equipment also includes a control module for regulating the injection assembly and the guide wire assembly.

[0046] The injection assembly is used to heat and store molten plastic raw materials and to mix and inject the molten plastic raw materials with glass fiber bundles at its output end. It includes an injection barrel 1 and a combined injection head 2.

[0047] like Figure 2 As shown, the injection barrel 1 comprises a barrel 11. A hopper 12 is located above the input end of the barrel 11 and communicates with the interior thereof for feeding materials. The output end of the barrel 11 is provided with a vent 13 and a heating ring 14. Multiple vents 13 are arranged as needed at the top axis of the barrel 11 to remove gases generated when heating the raw materials. Heating rings 14 are arranged as needed around the circumference of the barrel 11 to heat the raw materials. A screw 16 is located within the barrel 11. Driven by a screw motor 15, the screw 16 can move along the axial direction of the barrel 11, pushing the material from the input end to the output end of the barrel 11.

[0048] like Figure 3 As shown, the combined injection head 2 includes a nozzle 22, which is connected to the output end of the barrel 11 through a nozzle flange 21. A wire feeding connector 23 connected to the interior of the nozzle flange 21 is provided on the outer side of the connection end of the nozzle flange 21 and the nozzle 22, and the axis of the wire feeding connector 23 is at a forty-five degree angle with the axial direction of the nozzle flange 21.

[0049] The output end of the nozzle flange 21 is detachably connected to the nozzle 22 via threads, and its input end is detachably connected to the barrel 11 via threads. The nozzle flange 21, barrel 11, and the head of the screw 15 constitute the material storage section of the injection barrel 1, storing the molten plastic raw material. The nozzle flange 21 has an injection hole 212 at its input end and a mixing zone 213 at its output end, which are interconnected. The nozzle flange 21 is provided with multiple wire feed holes 211, which are connected to the outside world as needed. The outer diameter of each wire feed hole 211 is enlarged to accommodate a wire feed connector 23, and its inner side is connected to the mixing zone 213. The glass fiber bundle enters the nozzle flange 21 along the wire feed connector 23 and the wire feed hole 211. After mixing with the molten plastic raw material in the mixing zone 213, it is injected by the nozzle 22. The axis of the wire feed hole 211 forms a 45-degree angle with the axis of the nozzle flange 21 to reduce the breakage rate of the fiber bundle.

[0050] When the injection assembly is working, the plastic raw material melts in the injection barrel 1 and enters the material storage section formed by the injection barrel 1 and the combined injection head 2. Subsequently, the injection barrel 1 performs the injection action, injecting the molten plastic raw material into the injection hole 212 of the nozzle flange 21. The molten plastic raw material enters the mixing zone 213 through the injection hole 212; at the same time, the glass fiber bundle enters the mixing zone 213 from the wire feed hole 211 through the spinner 3 and is coated by the molten plastic raw material. At the same time, the viscosity of the molten plastic raw material provides some power to the glass fiber bundle, driving the molten plastic-glass fiber mixture to continue forward into the inlet of the nozzle 22. The molten plastic-glass fiber mixture continues to mix with the molten plastic at the inlet of the nozzle 22 and is injected into the mold cavity through the nozzle 22 under the push of the injection pressure.

[0051] In this embodiment, a frame 10 is provided above the interconnected ends of the injection barrel 1 and the combined injection head 2, which is used to fix the guide wire assembly.

[0052] In this embodiment, a detachable nozzle flange 21 is used to facilitate maintenance and repair of the equipment.

[0053] The wire guide assembly includes a pair of wire drawers 3 and a tension detector 5, a wire cutter 4 and a wire guide 7 arranged in sequence between the pair of wire drawers 3. The glass fiber bundle passes through the wire guide assembly from the creel 8 and then flows into the nozzle flange 21.

[0054] In this embodiment, the various components of the wire guide assembly are interconnected via a wire feed tube. Of the pair of extractors 3, the extractor 3 near the creel 8 is equipped with a guide tube for guiding and limiting the glass fiber bundle; the extractor 3 near the nozzle flange 21 is connected to the nozzle flange 21 via a wire feed connector 23.

[0055] like Figure 4As shown, the spinner 3 includes a spinner housing 31, which is provided with a spinner channel. The spinner housing 31 is provided with interference-fit roller assemblies on opposite sides of the spinner channel, and the outer side of the spinner housing 31 is provided with a drive assembly rotatably connected to the roller assembly.

[0056] The spinner housing 31 is mounted on the frame 10 via the spinner connection bases on both sides thereof, and a spinning channel penetrating the spinner housing 31 is provided on opposite sides thereof, and a quick connector 9 is arranged on the outside of the spinning channel to connect with the wire feeding tube 6; the driving assembly includes a coupling 35 and a spinning motor 36, the spinning motor 36 is arranged at the end of the spinner housing 31 away from the frame 10 and is connected to it via a motor bracket 6, and the output end of the spinning motor 36 is connected to the roller assembly via the coupling 35. The roller assembly includes a pair of spinning rollers 33 arranged inside the spinning housing 31 and on the upper and lower sides of the spinning channel, which are connected to the connecting shaft via a spinning roller shaft 34, and the center distance of the spinning roller shaft 34 is smaller than the diameter of the spinning roller 33, so as to achieve an interference fit between the two spinning rollers 33, so that the spinning rollers 33 are deformed to a certain extent, thereby achieving internal sealing to prevent leakage of the molten plastic raw material. The spinner housing 31 is fitted with a spinner cover 32 near the frame 10 to facilitate later maintenance and protect internal components. A pair of spinning rollers 33 move relative to each other, driving the glass fiber bundle within the spinning channel. The glass fiber content in the final injection molded product can be adjusted by varying the rotational speed of the roller assembly.

[0057] like Figure 5 As shown, the shredder 4 includes a shredder housing 46, which is mounted on the frame 10 through shredder connecting seats on both sides thereof. A detachable shredder housing cover 47 is provided on the top of the shredder housing 46. The shredder 4 is provided with a shredding channel. A base assembly and a cutting assembly are provided inside the shredder housing 46 along opposite sides of the shredding channel, respectively. The base assembly and the cutting assembly are connected to each other through a positioning rod 45.

[0058] The base assembly includes a cutting base 41, a cutting platform 42, and a cutting pressure sensor 44. The cutting base 41 is fixed to the bottom of the cutter housing 46 for mounting the cutting platform 42 and the cutting pressure sensor 44. The cutting base 41 is provided with two steps. The top of the upper step is externally threaded for mounting a positioning rod 45, while the lower step serves as a stop for the cutting platform 42, positioning the cutting blade 43 and leaving space for mounting the cutting pressure sensor 44. The cutting platform 42 rests on the cutting pressure sensor 44 and has locating ears on either side. These ears engage the uppermost step of the two steps of the cutting base 41 to position the cutting platform 42. The top of the cutting platform 42 serves as a cutting surface, with V-shaped grooves at 30 and 45 degrees, respectively. The 30-degree V-shaped grooves are the cutting grooves, which allow the cutting blade 43 and the cutting platform 42 to generate shear force, thus severing the glass fiber bundle. The 45-degree "V"-shaped groove is a wire feeding groove, which is used to prevent excessive friction between the glass fiber bundle and the cutting surface of the cutting table 42 during cutting, thereby affecting subsequent wire feeding. The wire cutting pressure sensor 44 is installed between the wire cutting base 41 and the cutting table 42. It has a "C"-shaped appearance and works on the principle of a strain sensor. It mainly obtains the magnitude of the shear force generated during cutting, which is convenient for equipment control and maintenance. The positioning rod 45 is installed on the upper step of the wire cutting base 41 and is connected to the wire cutting base 41 through the external thread of the upper step. The top of the positioning rod 45 is connected to the wire cutter housing cover 47 through a positioning groove to ensure its positioning rigidity.

[0059] The cutting assembly is arranged on one side of the cutter housing 46, and includes a cutting knife 43, a cutting motor 48, a cutting motor housing 49 and a cutting motor housing cover 410. The cutting motor 48 is arranged inside the cutting motor housing 49, and its output end drives the cutting knife 43 to move up and down along the positioning rod 45. Positioning ears that cooperate with the positioning rod 45 are provided on both sides of the cutting knife 43, so that the cutting knife 43 can move on the positioning rod 45. A threaded hole is opened at the top of the cutting knife 43 for connecting to the shaft of the cutting motor 48. The cutter housing 46 is installed on the frame 10, and cutter connecting seats are made on both sides for connecting to the frame 10. Two steps are made at the end of the cutting channel and holes are opened on the steps for installing a quick connector 9 and connecting to the cutting channel, so that the glass fiber bundle can pass through the cutter 4. The cutting assembly can quickly cut the glass fiber in the drawing device 3 as needed to achieve production continuity and adjust the basic length of the glass fiber in the product.

[0060] When the cutter 4 is working, the glass fiber bundle enters the cutter 4 through the quick connector 9 and the cutting channel and exits from the other side. When the cutting operation is performed, the cutting motor 48 rotates rapidly, driving the cutting knife 43 to move downward rapidly through the thread, contacting the glass fiber bundle and the cutting surface of the cutting table 42, and generating a shear force on the glass fiber bundle. While generating the shear force, the cutting knife 43 will generate downward pressure on the cutting table 42. At this time, the downward pressure acts on the cutting pressure sensor 44 through the cutting table 42, causing the cutting pressure sensor 44 to deform, thereby detecting whether the pressure during cutting exceeds the limit. To prevent damage to the equipment due to excessive pressure during cutting, the lower steps on both sides of the cutting base 41 are used as limiters for the cutting table 42.

[0061] like Figure 6 As shown, the tension detector 5 includes a tension detector housing 57, which is provided with a tension detector housing cover 58 detachably connected thereto, the tension detector housing 57 is provided with a detection channel, and a force measuring base 51 is provided inside the tension detector housing 57. The force measuring base 51 is provided with a force measuring roller 53 above the end portion along the axial direction of the detection channel, and a detection component is provided in the middle of the force measuring base 51 below the detection channel.

[0062] The detection assembly includes a tension sensor 52, a force-measuring roller 53, a force-measuring roller shaft 54, a force platform 55 and a limiter 56. The force-measuring base 51 is used to install the main components of the detection assembly. Two roller supports are made on the left and right sides of the force-measuring base 51 for installing the force-measuring rollers 53. Two steps are made in front and behind the force-measuring base 51 for positioning and limiting the force platform 55. The tension sensor 52 is installed in the center of the force-measuring base 51. The working principle and appearance of the tension sensor 52 are the same as those of the shredded pressure sensor 44. A force-measuring roller 53 is also provided on the top of the limit force platform 55. The three force-measuring rollers 53 are respectively installed on the roller supports of the force-measuring base 51 and the force platform 55 through the force-measuring roller shaft 54. The axes of the force-measuring rollers 53 on both sides are on the same horizontal plane. The force-measuring rollers 53 on the force platform 55 are arranged in an interlaced manner with the force-measuring rollers 53 on both sides, so that when the glass fiber bundle passes through the three force-measuring rollers 53, it will bend to a certain extent, thereby generating downward pressure on the force-measuring rollers 53 on the force platform 55. The force platform 55 is placed on the tension sensor 52, and has positioning ears on both sides. The positioning ears cooperate with the upper steps on both sides of the force-measuring base 51 to achieve the positioning of the force platform 55. The limiter 56 is installed in the threaded holes at the top of the steps on both sides of the force-measuring base 51 to limit the movement of the force platform 55. The tension detector housing 57 is installed on the frame 10. The tension detector housing 57 has detector connecting seats on both sides for connecting to the frame 10. Two steps are made at both ends of the detection channel and holes are opened on the steps for installing the quick connector 9, so that the glass fiber bundle can pass through the tension detector 5.

[0063] When the tension detector 5 is operating, the glass fiber bundle passes through the holes on both sides of the tension detector housing 57 via the quick connector 9 and enters the tension detector 5 along the detection channel. After passing through the three force-measuring rollers 53, the glass fiber bundle deforms at the center force-measuring roller 53, generating a downward pressure. This downward pressure is then transmitted through the force-measuring rollers 53 and the force-measuring platform 55 to the force-measuring platform 55, generating a pressure signal and realizing tension detection.

[0064] like Figure 7 and Figure 8 As shown, the wire guide 7 includes a wire guide housing 71, which is provided with a first wire guide channel and a second wire guide channel. The first wire guide channel and the second wire guide channel form an angle of one hundred and thirty-five degrees inside the wire guide housing 71, and a wire guide roller assembly is provided at the angle.

[0065] The guide roller assembly includes a guide roller 72 and a guide roller shaft 73. The guide housing 71 includes through-holes along one end of each of the first and second guide channels, with the two through-holes forming a 135-degree angle. These holes allow the glass fiber bundle to be diverted within the guide 7, while also reducing the breakage rate of the glass fiber bundle during the bend. A quick connector 9 is mounted on the outer side of the through-holes. The guide roller 72 is mounted on a roller frame within the guide housing 71 and connected to the guide housing 7 via the guide roller shaft 73. It is used to deflect the glass fiber bundle within the guide 7.

[0066] like Figure 9 As shown, the creel 8 is composed of a plurality of spindle units 81, and the spindle unit 81 includes a spindle 82, a spindle shaft 83 and a spindle frame 84. The spindle shaft 83 is mounted on the spindle frame 84, and the spindle shaft 83 is used to place the spindle 82 so that the spindle axis can rotate on the spindle shaft 83.

[0067] When the creel 8 is working, the first-stage spinning machine 3 extracts glass fibers from the multiple spindles 82 through the wire feeding tube 6, and the extracted glass fibers are transported to the next-stage spinning machine 3 through the wire feeding tube 6.

[0068] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A long glass fiber direct injection molding device, comprising an injection assembly and a guide wire assembly, characterized in that: The output end of the guide wire assembly merges into the output end of the injection assembly, and the axis of the output end of the guide wire assembly forms a forty-five degree angle with the axis of the output end of the injection assembly. The guide wire assembly is provided with a reel and a tension detector for detecting and adjusting the glass fiber bundle, and also includes a control module for controlling the injection assembly and the guide wire assembly; The injection assembly includes an injection barrel and a combined injection head, the output end of the injection barrel is connected to the input end of the combined injection head, and a frame is provided above the mutually connected ends of the injection barrel and the combined injection head; The injection barrel comprises a barrel, a hopper connected to the interior of the barrel is provided above the input end of the barrel, an exhaust hole arranged along the axial direction of the top of the barrel and a heating ring arranged around the barrel is provided at the output end of the barrel, and a screw is provided inside the barrel, and the screw can move along the axial direction of the barrel under the drive of the screw motor; The combined injection head includes a nozzle, which is connected to the output end of the barrel through a nozzle flange. A wire feed connector is provided on the outside of the nozzle flange and the nozzle connection end, which is connected to the inside of the nozzle flange. The axis of the wire feed connector forms an angle of 45 degrees with the axial direction of the nozzle flange. The wire guide assembly is connected to the frame, and further includes a wire cutter, a wire guide and a creel. The tension detector, the wire cutter and the wire guide are sequentially arranged between a pair of wire drawing devices. The glass fiber bundle passes through the wire guide assembly from the creel and then flows into the nozzle flange. The wire drawing device, tension detector, wire guide and wire cutter are connected to each other via a wire feeding tube; The tension detector includes a tension detector housing, which is provided with a detection channel. A force measuring base is provided inside the tension detector housing. A force measuring roller is provided above the end of the force measuring base along the axial direction of the detection channel. A detection component is provided in the middle of the force measuring base below the detection channel.

2. The long glass fiber direct injection molding equipment according to claim 1, characterized in that: The spinner includes a spinner housing, which is provided with a spinner channel. Roller assemblies with interference fit are provided inside the spinner housing along opposite sides of the spinner channel. A drive assembly rotatably connected to the roller assembly is provided on one side of the outside of the spinner housing.

3. The long glass fiber direct injection molding equipment according to claim 1, characterized in that: The shredder comprises a shredder shell provided with a shredder channel. A base assembly and a cutting assembly are respectively provided along opposite sides of the shredder channel inside the shredder shell. The base assembly and the cutting assembly are connected to each other via a positioning rod.

4. The long glass fiber direct injection molding equipment according to claim 1, characterized in that: The wire guide comprises a wire guide housing, which is provided with a first wire guide channel and a second wire guide channel. The first wire guide channel and the second wire guide channel form an angle of 135 degrees inside the wire guide housing, and a wire guide roller assembly is provided at the angle.

Images