Long glass fiber direct injection molding equipment

Abstract

The invention relates to long glass fiber direct injection molding equipment which comprises an injection assembly and a wire guide assembly, the output end of the wire guide assembly is converged into the output end of the injection assembly, and the included angle between the axis of the output end of the wire guide assembly and the axis of the output end of the injection assembly is 45 degrees. The wire guide assembly is provided with a wire drawing device and a tension monitor which are used for detecting and adjusting the glass fiber bundle, and the control module is used for controlling the injection assembly and the wire guide assembly. The included angle between the input end of the injection assembly and the input end of the wire guide assembly is set to be 45 degrees, so that the fracture rate during injection mixing of glass fiber bundles and sizing materials is reduced; in the process that the glass fiber bundles are converged into the injection assembly, the tension of the glass fiber bundles is detected through the tension detector, the glass fiber bundles are adjusted through the wire drawing device according to the detection result, it is guaranteed that the stress of the glass fiber bundles is stable during wire drawing, and the fracture rate of glass fibers during wire drawing 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 the requirements for materials of products become higher and higher, polymer materials are increasingly valued in the process of product manufacturing. Through long glass fiber injection molding as an additive for plastic modification, the products produced combine the high strength of long glass fiber reinforced materials and the processability of thermoplastics, and have the advantages of good mechanical properties, recyclability, light weight and low cost. Therefore, it is widely used in industries such as automobiles, aerospace, electronics and sports equipment.

[0003] During the injection molding process of existing long glass fiber reinforced materials, long glass fibers are very likely to break or rearrange, which will affect the mechanical properties of the composite material. Maintaining the length of glass fibers is crucial to the reinforcement effect of composite materials. In actual production, 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 prior art 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 monitor 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 and 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 and 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 and the nozzle connecting end is provided on the outside, and the axis of the wire feeding connector forms an angle of forty-five degrees with the axial direction of the nozzle flange.

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

[0010] As a preferred embodiment of the medium and long glass fiber direct injection molding equipment of the present invention, the wire drawing device includes a wire drawing device housing, which is provided with a wire drawing channel, and roller assemblies with interference fit are provided inside the wire drawing device housing along opposite sides of the wire drawing channel, and a driving assembly rotatably connected to the roller assembly is provided on one side of the outer side of the wire drawing device housing.

[0011] As a preferred embodiment of the medium and long glass fiber direct injection molding equipment of the present invention, the cutter includes a cutter shell, which is provided with a cutting channel, and the inside of the cutter shell is provided with a base assembly and a cutting assembly along opposite sides of the cutting channel, respectively, 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 glass fiber bundles when mixed with rubber compound by injection by setting the angle between the input ends 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 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

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

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the injection assembly in the embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the combined injection head in the 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 diagram of the structure of the wire guide in the 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] Fig. 9 This is a schematic diagram of the structure of the creel in the 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 feeding hole; 212. Injection hole; 213. Mixing zone; 22. Nozzle; 23. Wire feeding connector;

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

[0031] 4. Wire cutter; 41. Wire cutter base; 42. Cutting table; 43. Cutting knife; 44. Wire cutter pressure sensor; 45. Positioning rod; 46. Wire cutter housing; 47. Wire cutter housing cover; 48. Wire cutter motor; 49. Wire cutter motor compartment housing; 410. Wire cutter motor compartment 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] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by 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 referred device or element 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] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature 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. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in 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 a central 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 a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0044] Example

[0045] This embodiment provides a long glass fiber direct injection molding device, such as Figure 1As shown, it includes an injection assembly and a guide wire assembly. The guide wire assembly is arranged at the side of the injection assembly, and its output end merges into the output end of the injection assembly. The glass fiber bundle is merged into the injection assembly through the guide wire assembly and injected into the mold cavity together with the rubber compound after mixing. In order to reduce the breakage rate of the glass fiber bundle when it merges into the injection assembly, the axis of the output end of the guide wire assembly and the axis of the output end of the injection assembly form an angle of 45 degrees; in order to reduce the breakage rate of the glass fiber bundle during the transportation process in the guide wire assembly, the guide wire assembly is provided with a wire extractor 3 and a tension monitor 5 for detecting and adjusting the tension of the glass fiber bundle; the injection molding equipment also includes a control module for controlling the injection assembly and the guide wire assembly.

[0046] The injection assembly is used for heating, storing and pushing molten plastic raw materials, and mixing the molten plastic raw materials with glass fiber bundles and injecting them at its output end, and 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, and a hopper 12 connected to the inside of the barrel 11 for feeding is provided above the input end of the barrel 11, and an exhaust hole 13 and a heating ring 14 are provided at the output end of the barrel 11. A plurality of exhaust holes 13 are arranged at the top axis of the barrel 11 as required to discharge the gas generated when heating the raw material. The heating ring 14 is arranged on the circumference of the barrel 11 as required to heat the raw material. A screw 16 is provided inside the barrel 11, and the screw 15 can move along the axial direction of the barrel 11 under the drive of the screw motor 15, so as to push the material from the input end of the barrel 11 to the output end.

[0048] like Figure 3 As shown, the combined injection head 2 includes a nozzle 22, and the nozzle 22 is connected to the output end of the barrel 11 through a nozzle flange 21. A wire feeding connector 23 connected to the inside 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 forms an angle of forty-five degrees 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 through a thread, and the input end thereof is detachably connected to the barrel 11 through a thread. The nozzle flange 21, the barrel 11 and the head of the screw 15 constitute the material storage section of the injection barrel 1 to store the molten plastic raw material. The input end of the nozzle flange 21 is provided with an injection hole 212, and the output end thereof is provided with a mixing zone 213, which are interconnected. The nozzle flange 21 is provided with a plurality of wire feeding holes 211 connected to the outside as required, and the outer diameter of the wire feeding hole 211 is enlarged for installing the wire feeding connector 23, and the inner side thereof is connected to the mixing zone 213. The glass fiber bundle enters the nozzle flange 21 along the wire feeding connector 23 and the wire feeding hole 211, and is injected by the nozzle 22 after being mixed with the molten plastic raw material in the mixing zone 213. The axis of the wire feeding hole 211 is at an angle of 45 degrees 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 to inject 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 feeding hole 211 through the wire extractor 3 and is coated by the molten plastic raw material. At the same time, the viscosity of the molten plastic raw material provides a part of the power for the glass fiber bundle to drive the molten plastic-glass fiber mixture to continue to move forward to 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, and 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 which are sequentially arranged between the pair of wire drawers 3. The glass fiber bundle passes through the wire guide assembly from the yarn rack 8 and then flows into the nozzle flange 21.

[0054] In this embodiment, the components of the wire guide assembly are connected to each other through a wire feeding tube. In a pair of the wire drawing devices 3, the wire drawing device 3 close to the creel 8 is provided with a guide tube for guiding and limiting the glass fiber bundle; the wire drawing device 3 close to the nozzle flange 21 is connected to the nozzle flange 21 through a wire feeding connector 23.

[0055] like Figure 4As shown, the extractor 3 includes an extractor housing 31, which is provided with a extractor channel, and roller assemblies with interference fit are provided inside the extractor housing 31 along opposite sides of the extractor channel, and a driving assembly rotatably connected to the roller assembly is provided on one side of the outside of the extractor housing 31.

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

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

[0058] The base assembly includes a wire cutting base 41, a cutting platform 42 and a wire cutting pressure sensor 44. The wire cutting base 41 is fixed to the bottom of the wire cutting device housing 46 for installing the cutting platform 42 and the wire cutting pressure sensor 44. The wire cutting base 41 is provided with two two-level steps. The top of the upper step is made of external thread for installing the positioning rod 45. The lower step is used as a limit for the cutting platform 42 to position the cutting knife 43 and leave space for installing the wire cutting pressure sensor 44. The cutting platform 42 is placed on the wire cutting pressure sensor 44, and positioning ears are provided on both sides. The positioning ears cooperate with the uppermost level of the two steps of the wire cutting base 41 to position the cutting platform 42. The top of the cutting platform 42 is a wire cutting surface, and a cross-intersecting "V"-shaped groove with an angle of 30 degrees and 45 degrees is opened on the wire cutting surface. The 30-degree "V"-shaped groove is a cutting groove, which is used for the cutting knife 43 and the cutting platform 42 to generate shear force to cut 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. Its working principle is a strain sensor, which 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 wire cutter housing 46, and includes a cutting knife 43, a wire cutting motor 48, a wire cutting motor housing 49 and a wire cutting motor housing cover 410. The wire cutting motor 48 is arranged inside the wire 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 arranged 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 on the top of the cutting knife 43 to connect with the shaft of the wire cutting motor 48. The wire cutter housing 46 is installed on the frame 10, and the wire cutter connecting seats are made on both sides for connecting with the frame 10. Two steps are made at the end of the wire cutting channel and holes are opened on the steps for installing the quick connector 9 and communicating with the wire cutting channel, so that the glass fiber bundle can pass through the wire cutter 4. The cutting assembly can quickly cut the glass fiber in the wire drawing device 3 as needed to achieve the continuity of production and adjust the basic length of the glass fiber in the product.

[0060] When the wire cutter 4 is working, the glass fiber bundle enters the wire cutter 4 through the quick connector 9 and the wire cutting channel, and passes through the other side. When performing the wire cutting operation, the wire cutting motor 48 rotates rapidly to drive 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 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 wire cutting pressure sensor 44 through the cutting table 42, and the wire cutting pressure sensor 44 is deformed, 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, the lower steps on both sides of the wire cutting base 41 are used as the limit of 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, a force measuring base 51 is provided inside the tension detector housing 57, a force measuring roller 53 is provided above the end of the force measuring base 51 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 measuring platform 55 and a limiter 56, and 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 roller 53. Two steps are made in front and behind the force measuring base 51 for positioning and limiting the force measuring platform 55. The tension sensor 52 is installed at 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 wire cutting pressure sensor 44. A force measuring roller 53 is also provided on the top of the limit force measuring platform 55, and the three force measuring rollers 53 are respectively installed on the roller supports of the force measuring base 51 and the force measuring 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, and the force measuring rollers 53 on the force measuring platform 55 are arranged alternately with the force measuring rollers 53 on both sides, so that when the glass fiber bundle passes through the three force measuring rollers 53, a certain degree of bending will occur, thereby generating downward pressure on the force measuring rollers 53 on the force measuring platform 55. The force measuring platform 55 is placed on the tension sensor 52, and positioning ears are made on both sides. The positioning ears cooperate with the upper level of the steps on both sides of the force measuring base 51 to achieve the positioning of the force measuring platform 55. The limiter 56 is installed in the threaded holes on the top of the steps on both sides of the force measuring base 51 to limit the movement of the force measuring platform 55. The tension detector housing 57 is installed on the frame 10, and the detector connecting seats are made on both sides of the tension detector housing 57 for connecting with 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 working, the glass fiber bundle passes through the holes on both sides of the tension detector housing 57 through 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 is deformed at the middle force measuring roller 53 and generates downward pressure. The downward pressure is transmitted to the force measuring platform 55 through the force measuring roller 53 and the force measuring platform 55, thereby 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 wire guide roller assembly includes a wire guide roller 72 and a wire guide roller shaft 73. Through holes are respectively provided on the wire guide housing 71 along one end of the first wire guide channel and the second wire guide channel, and the two through holes are at an angle of 135 degrees, which are used for turning the glass fiber bundle inside the wire guide 7 and reducing the breakage rate of the glass fiber bundle when turning. A quick connector 9 is installed outside the through hole. The wire guide roller 72 is installed on the roller frame inside the wire guide housing 71, and is connected to the wire guide housing 7 through the wire guide roller shaft 73, and is used for deflecting the glass fiber bundle inside the wire guide 7.

[0066] like Fig. 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 yarn rack 8 is working, the first-stage spinning machine 3 extracts glass fibers from 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-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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 only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached 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 an angle of forty-five degrees with the axis of the output end of the injection assembly. The guide wire assembly is provided with a drawbar and a tension monitor for detecting and adjusting the glass fiber bundle, and also includes a control module for controlling the injection assembly and the guide wire assembly.

2. The long glass fiber direct injection molding device according to claim 1, characterized in that: The injection assembly comprises 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. A frame is arranged above the mutually connected ends of the injection barrel and the combined injection head.

3. The long glass fiber direct injection molding device according to claim 2, characterized in that: The injection barrel comprises a barrel, a hopper connected to the interior of the barrel is arranged 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 arranged at the output end of the barrel, a screw is arranged inside the barrel, and the screw can move along the axial direction of the barrel under the drive of the screw motor.

4. The long glass fiber direct injection molding device according to claim 2, characterized in that: The combined injection head includes a nozzle, which is connected to the output end of the barrel through a nozzle flange. A wire feeding connector connected to the inside of the nozzle flange is provided on the outside of the nozzle flange, and the axis of the wire feeding connector forms an angle of forty-five degrees with the axial direction of the nozzle flange.

5. The long glass fiber direct injection molding device according to claim 1, characterized in that: The wire guide assembly is connected to the frame, and also includes a wire cutter, a wire guide and a yarn rack. The tension detector, the wire cutter and the wire guide are arranged in sequence between a pair of wire drawers. The glass fiber bundle passes through the wire guide assembly from the yarn rack and then flows into the nozzle flange.

6. The long glass fiber direct injection molding device according to claim 5, characterized in that: The wire drawing device, the tension detector, the wire guide and the wire cutter are connected to each other through a wire feeding tube.

7. The long glass fiber direct injection molding device according to claim 6, characterized in that: The spinner includes a spinner housing provided with a spinner channel, roller assemblies with interference fit are provided inside the spinner housing along opposite sides of the spinner channel, and a driving assembly rotatably connected to the roller assembly is provided on one side outside the spinner housing.

8. The long glass fiber direct injection molding device according to claim 6, 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, and the base assembly and the cutting assembly are connected to each other through a positioning rod.

9. The long glass fiber direct injection molding device according to claim 6, characterized in that: The tension detector comprises a tension detector housing 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.

10. The long glass fiber direct injection molding device according to claim 6, 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.

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