Fiber-reinforced polymer precise injection molding runner device

Abstract

The utility model relates to the field of fibers, and discloses a fiber reinforced polymer precise injection molding runner device which comprises an injection molding guide pipe and an injection molding head, the injection molding head is installed at one end of the injection molding guide pipe, a multi-runner structure is arranged in the injection molding guide pipe, and a nozzle structure corresponding to the multi-runner structure is arranged at one end of the injection molding guide pipe. A multi-runner structure is adopted, the injection molding branch pipes can contain various different types of fiber reinforced high polymer materials, when the injection molding materials need to be replaced, the whole runner device does not need to be replaced frequently, time and cost are greatly saved, production efficiency and flexibility are remarkably improved, and production cost is reduced. And the requirements of products on compounding of various materials in actual production and the material replacement requirements of different orders can be better met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fiber, concretely to a fiber reinforced high molecular precision injection molding runner device. BACKGROUND

[0002] The fiber reinforced high molecular precision injection molding runner is a key component for guiding the flow of fiber reinforced high molecular material in the injection molding process, which plays a crucial role in improving the quality of injection molding products, production efficiency and reducing costs. Through the carefully designed structure, it ensures that the fiber reinforced high molecular material can flow uniformly and stably during the injection molding process, thereby improving the precision, quality and performance of the injection molding products.

[0003] Most of the traditional injection molding runners are single runner structures. During injection molding production, only one kind of fiber reinforced high molecular material can be used, and the flexibility is seriously insufficient. In actual production, multiple materials may be needed to be combined to achieve specific performance, or the injection molding material needs to be frequently replaced according to different order requirements. However, the traditional runner needs to consume a lot of time and cost to replace the entire runner device every time the material is replaced, which greatly affects the production efficiency and economic benefits. Therefore, we propose a fiber reinforced high molecular precision injection molding runner device. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the utility model provides a fiber reinforced high molecular precision injection molding runner device, which solves the above problems.

[0006] (II) Technical solutions

[0007] To achieve the above purposes, the utility model provides the following technical scheme: a fiber reinforced high molecular precision injection molding runner device, comprising an injection molding pipe and an injection molding head, one end of the injection molding pipe is provided with the injection molding head, a multi-runner structure is arranged in the injection molding pipe, a nozzle structure is arranged at one end of the injection molding pipe corresponding to the multi-runner structure, and a locking and adjusting structure is arranged outside the injection molding pipe and the nozzle structure.

[0008] Preferably, the multi-runner structure comprises injection molding sub-pipes, a spiral heating pipe and a heating pipe, a plurality of injection molding sub-pipes are fixedly connected between the two symmetrical planes in the injection molding pipe and are uniformly distributed in the circumference, the two ends of the injection molding sub-pipes are communicated with the two ends of the injection molding pipe, the spiral heating pipe is fixedly connected between the two symmetrical planes in the injection molding pipe, the two ends of the spiral heating pipe are fixedly connected with the injection molding pipe, the spiral heating pipe is attached to the inner cylindrical surface of the injection molding pipe, the spiral heating pipe is between the inner wall of the injection molding pipe and the injection molding sub-pipes, and the heating pipe is fixedly connected at the middle position between the two symmetrical planes in the injection molding pipe, the two ends of the heating pipe are fixedly connected with the injection molding pipe, and the heating pipe is between the injection molding sub-pipes.

[0009] Preferably, the nozzle structure comprises a connecting pipe, an injection head, an injection port and an injection inclined port, one side of the connecting pipe away from the injection head is attached to one plane of the injection pipe, the plane of the connecting pipe is provided with the injection port, the injection port corresponds to the injection pipe, one end of the connecting pipe is fixedly connected with the injection head, the end with larger diameter of the injection head is fixedly connected with the connecting pipe, and the side of the injection head connected with the connecting pipe is provided with the injection inclined port.

[0010] Preferably, the locking and adjusting structure comprises an annular protrusion one, an expansion slot, a clamping block and a spring, the outer cylindrical surface of the connecting pipe is fixedly connected with the annular protrusion one away from the injection head, the outer cylindrical surface of the annular protrusion one is provided with the expansion slot, the expansion slot is fixedly connected with the spring on the opposite side, the other end of the spring is fixedly connected with the clamping block, and the spherical one end of the clamping block is outside the expansion slot.

[0011] Preferably, the locking and adjusting structure further comprises an internally threaded pipe, an annular protrusion two and a clamping slot, the inner cylindrical surface of the internally threaded pipe is fixedly connected with the annular protrusion two near one end, the internally threaded pipe is connected with the connecting pipe in a sleeve manner and the annular protrusion two is connected with the annular protrusion one in a clamping manner, the inner cylindrical surface of the internally threaded pipe is provided with a plurality of clamping slots near the annular protrusion two, the clamping slots correspond to the clamping blocks and the clamping slots are connected with the clamping blocks in a plugging manner, the number of the clamping slots corresponds to the number of the injection pipes and the distribution angles are the same.

[0012] Preferably, the outer cylindrical surface of the injection pipe is fixedly connected with the externally threaded pipe near one end of the connecting pipe, the inner cylindrical surface of the externally threaded pipe is fixedly connected with the injection pipe, and the external threads of the externally threaded pipe are threadedly connected with the internal threads of the internally threaded pipe.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the utility model provides a fiber reinforced polymer precision injection runner device, has the following beneficial effects:

[0015] 1、The fiber reinforced polymer precision injection runner device adopts a multi-runner structure, the injection pipes can accommodate various types of fiber reinforced polymer materials, when the injection material needs to be replaced, the whole runner device does not need to be frequently replaced, time and cost are greatly saved, production efficiency and flexibility are remarkably improved, and the device can better adapt to the demand of product on multiple material compounding and the material replacement requirement of different orders in actual production.

[0016] 2、The fiber reinforced polymer precision injection molding flow channel device is equipped with a spiral heating pipe and a heating pipe, can uniformly heat the injection molding material in the injection molding branch pipe, avoids solidification or too large viscosity change of the material due to temperature reduction in the flowing process, ensures uniform and stable flowing of the material, meanwhile, the connecting pipe and the injection head are made of heat preservation materials, prevent the injection molding material from gradually solidifying due to temperature reduction in the injection molding port and the injection molding inclined port, in addition, the locking and adjusting structure can ensure that the injection molding port is accurately corresponding to the corresponding injection molding branch pipe, and the design collectively ensures smooth injection molding process, effectively improves the precision, quality and performance of the injection molded product. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural explosion schematic diagram of the utility model;

[0019] Figure 3 It is a sectional view schematic diagram of the multi-flow channel structure of the utility model;

[0020] Figure 4 It is a sectional view schematic diagram of the nozzle structure of the utility model;

[0021] Figure 5 It is Figure 4 A local enlarged schematic diagram in the utility model.

[0022] In the drawing: 1, injection molding pipe; 2, connecting pipe; 3, injection head; 4, internal thread pipe; 5, annular protrusion one; 6, clamping block; 7, annular protrusion two; 8, clamping groove; 9, external thread pipe; 10, injection molding branch pipe; 11, spiral heating pipe; 12, heating pipe; 13, telescopic groove; 14, spring; 15, injection molding port; 16, injection molding inclined port. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-5 A fiber reinforced polymer precision injection molding flow channel device, comprising an injection molding pipe 1 and an injection head 3, the injection molding pipe 1 is provided with the injection head 3 at one end, the injection molding pipe 1 is provided with a multi-flow channel structure inside, the injection molding pipe 1 is provided with a nozzle structure at one end corresponding to the multi-flow channel structure, and the nozzle structure and the outside of the injection molding pipe 1 are provided with a locking and adjusting structure.

[0025] Further, the multi-channel structure includes injection sub-pipes 10, spiral heating pipes 11 and heating pipes 12, a plurality of circumferentially uniformly distributed injection sub-pipes 10 are fixedly connected between the two symmetrical planes in the injection guide pipe 1, the two ends of the injection sub-pipes 10 are communicated with the two ends of the injection guide pipe 1, the spiral heating pipes 11 are fixedly connected between the two symmetrical planes in the injection guide pipe 1, the two ends of the spiral heating pipes 11 are fixedly connected with the injection guide pipe 1, the spiral heating pipes 11 are attached to the inner cylindrical surface of the injection guide pipe 1, the spiral heating pipes 11 are between the inner wall of the injection guide pipe 1 and the injection sub-pipes 10, the heating pipes 12 are fixedly connected at the middle position between the two symmetrical planes in the injection guide pipe 1, the two ends of the heating pipes 12 are fixedly connected with the injection guide pipe 1, the heating pipes 12 are between the injection sub-pipes 10, the injection sub-pipes 10 are used to contain a plurality of different types of fiber-reinforced polymer materials, when it is necessary to replace the injection material, the injection channel device does not need to be frequently replaced, the spiral heating pipes 11 and the heating pipes 12 are used to heat the injection material in the injection sub-pipes 10, so that the heat preservation is uniform.

[0026] Further, the nozzle structure includes a connecting guide pipe 2, an injection head 3, an injection port 15 and an injection inclined port 16, one side of the connecting guide pipe 2 away from the injection head 3 is attached to one plane of the injection guide pipe 1, the plane of the connecting guide pipe 2 is provided with the injection port 15, the injection port 15 corresponds to the injection sub-pipe 10, one end of the connecting guide pipe 2 is fixedly connected with the injection head 3, the end with a large aperture of the injection head 3 is fixedly connected with the connecting guide pipe 2, one side of the injection head 3 connected with the connecting guide pipe 2 is provided with the injection inclined port 16, the connecting guide pipe 2 is used to install the locking and adjusting structure, the connecting guide pipe 2 is used to connect the injection head 3 and the injection guide pipe 1, the connecting guide pipe 2 and the injection head 3 are made of heat preservation material, so as to avoid that the injection material gradually solidifies due to temperature reduction in the injection port 15 and the injection inclined port 16, the injection port 15 and the injection inclined port 16 are the outlets of the injection material.

[0027] Further, the locking and adjusting structure includes an annular protrusion one 5, a telescopic groove 13, a clamping block 6 and a spring 14, the outer cylindrical surface of the connecting guide pipe 2 away from the injection head 3 is fixedly connected with the annular protrusion one 5, the outer cylindrical surface of the annular protrusion one 5 is provided with the telescopic groove 13, one side of the telescopic groove 13 opposite to the opening is fixedly connected with the spring 14, the other end of the spring 14 is fixedly connected with the clamping block 6, the spherical one end of the clamping block 6 is outside the telescopic groove 13, the annular protrusion one 5 is used to clamp and limit the locking and adjusting structure and the injection guide pipe 1, the telescopic groove 13 is used to install the spring 14 and the clamping block 6, the rebound force of the spring 14 makes the clamping block 6 extend out of the telescopic groove 13, the clamping block 6 is used to limit the locking and adjusting mechanism.

[0028] Further, the locking adjusting structure further comprises the inner threaded pipe 4, the annular protrusion two 7 and the clamping groove 8. The inner cylindrical surface of the inner threaded pipe 4 is fixedly connected with the annular protrusion two 7 near one end. The inner threaded pipe 4 is sleeved with the connecting pipe 2 and the annular protrusion two 7 is clamped with the annular protrusion one 5. The inner cylindrical surface of the inner threaded pipe 4 is provided with a plurality of clamping grooves 8 near the annular protrusion two 7. The clamping grooves 8 correspond to the clamping blocks 6 and are insertedly connected with the clamping blocks 6. The number of the clamping grooves 8 corresponds to the number of the injection sub-pipes 10 and the distribution angles are the same. The inner threaded pipe 4 is used for connecting the connecting pipe 2 and the injection pipe 1. The annular protrusion two 7 is used for limiting clamping with the annular protrusion one 5. The clamping grooves 8 are used for clamping the clamping blocks 6.

[0029] Further, the outer cylindrical surface of the injection pipe 1 is fixedly connected with the outer threaded pipe 9 near one end of the connecting pipe 2. The inner cylindrical surface of the outer threaded pipe 9 is fixedly connected with the injection pipe 1. The outer thread of the outer threaded pipe 9 is threadedly connected with the inner thread of the inner threaded pipe 4. The outer threaded pipe 9 is used for threadedly connecting with the inner threaded pipe 4 so as to connect the injection pipe 1 and the connecting pipe 2. When the injection material needs to be replaced, the threads of the inner threaded pipe 4 and the outer threaded pipe 9 are unscrewed, the connecting pipe 2 and the injection head 3 are removed, and after cleaning, the threads of the inner threaded pipe 4 and the threads of the outer threaded pipe 9 are aligned and screwed together. When the clamping blocks 6 correspond to the clamping grooves 8, the connecting pipe 2 is rotated to make the injection port 15 correspond to the corresponding injection sub-pipe 10. At the same time, the clamping blocks 6 are pressed to make the springs 14 compressed. The clamping blocks 6 are retracted into the telescopic grooves 13. When the injection port 15 corresponds to the corresponding injection sub-pipe 10, the clamping blocks 6 are rotated to the positions of the clamping grooves 8 corresponding to the injection sub-pipes 10. The clamping blocks 6 are not pressed, the springs 14 return to the original state, and the rebound force of the springs 14 clamps the clamping blocks 6 in the clamping grooves 8. The inner threaded pipe 4 and the outer threaded pipe 9 are tightened to complete the connection.

[0030] Structure description:

[0031] The injection pipe 1 is a tubular structure with a certain length and an inner diameter. It is used as the main frame of the whole flow channel device and contains a multi-flow channel structure to guide the preliminary flow of the fiber-reinforced high polymer material.

[0032] The connecting pipe 2 is a tubular structure. One end is attached to the injection pipe 1 and the other end is connected to the injection head 3. It is used to connect the injection head 3 and the injection pipe 1. The injection port 15 is provided on the connecting pipe 2 for the material to pass through. The locking adjusting structure is installed on the connecting pipe 2.

[0033] The injection head 3 is usually a tubular structure with a large hole diameter at one end and a small hole diameter at the other end. It is connected to the connecting pipe 2. It is used to inject the material flowing out of the injection port 15 and the injection inclined port 16 into the mold cavity to complete the injection molding.

[0034] Inner threaded pipe 4: The shape is a tubular structure with internal threads, and its function is to connect the connecting pipe 2 and the injection pipe 1 together by thread connection with the outer threaded pipe 9, realizing the overall connection of the device;

[0035] Annular protrusion one 5: The shape is an annular block, fixed on the outer cylindrical surface of the connecting pipe 2, and its function is to clamp and limit the locking adjustment structure and the injection pipe 1, providing a mounting base for components such as the telescopic groove 13;

[0036] Clamp block 6: The shape is a block structure with a spherical end, and its function is to extend out of the telescopic groove 13 under the action of the spring 14, cooperate with the clamping groove 8, and realize the positioning and limiting of the connecting pipe 2 and the injection pipe 1;

[0037] Annular protrusion two 7: The shape is an annular block, fixed on the inner cylindrical surface of the inner threaded pipe 4, and its function is to limit and clamp with the annular protrusion one 5, assisting the connection and positioning of the inner threaded pipe 4 and the connecting pipe 2;

[0038] Clamping groove 8: The shape is a groove structure opened on the inner cylindrical surface of the inner threaded pipe 4, and its function is to insert and connect with the clamp block 6, determine the relative position of the connecting pipe 2 and the injection pipe 1, and make the injection port 15 accurately correspond to the injection sub-pipe 10;

[0039] Outer threaded pipe 9: The shape is a tubular structure with external threads, fixed on the outer cylindrical surface of the injection pipe 1, and its function is to threadedly connect with the inner threaded pipe 4, thereby connecting the injection pipe 1 and the connecting pipe 2;

[0040] Injection sub-pipe 10: The shape is a thin tubular structure, evenly distributed in the injection pipe 1, and its function is to load multiple types of fiber-reinforced high polymer materials respectively, realize the simultaneous delivery of multiple materials, and avoid frequent replacement of the flow channel device;

[0041] Spiral heating pipe 11: The shape is a spiral, attached to the inner cylindrical surface of the injection pipe 1, and its function is to heat the injection material in the injection sub-pipe 10, keep the material at a suitable temperature during flow, and ensure stable fluidity;

[0042] Heating pipe 12: The shape is a tubular structure, located between the injection sub-pipes 10, and its function is to assist the spiral heating pipe 11 in uniformly heating the material in the injection sub-pipes 10;

[0043] Telescopic groove 13: The shape is a groove structure opened on the outer cylindrical surface of the annular protrusion one 5, and its function is to install the spring 14 and the clamp block 6, providing space for the telescoping of the clamp block 6;

[0044] Spring 14: The shape is a common spiral spring, and its function is to generate a rebound force to make the clamp block 6 extend out of the telescopic groove 13, ensuring that the clamp block 6 can effectively clamp with the clamping groove 8;

[0045] Injection port 15: shape as a hole structure through the connecting conduit 2 plane, function is as the injection sub-pipe 10 material flow into the injection head 3 channel, with the injection sub-pipe 10 corresponding;

[0046] Injection bevel 16: shape as a hole structure through the injection head 3 and the connecting conduit 2 connecting surface, function is to guide the material from the injection port 15 flow into the injection head 3 more smoothly, finally into the mold.

[0047] Working principle: before the injection starts, a variety of different types of fiber reinforced polymer materials are loaded into the injection conduit 1 in each injection sub-pipe 10, injection sub-pipe 10 circumferentially evenly distributed in the injection conduit 1, can effectively separate different materials, realize the simultaneous accommodation of multiple materials, when the injection machine starts, the pressure generated to push these materials flow in the injection sub-pipe 10, for the subsequent injection molding preparation, in the process of material flow in the injection sub-pipe 10, to ensure its flowability and performance stability, the spiral heating pipe 11 and heating pipe 12 play a key role, the spiral heating pipe 11 with the inner cylindrical surface of the injection conduit 1, located between the injection conduit 1 inner wall and the injection sub-pipe 10, heating pipe 12 is between the injection sub-pipe 10, the two heating pipes generate heat after power on, uniform heat preservation for the injection material in the injection sub-pipe 10, so that the material maintains the appropriate temperature on the whole flow path, when the material flows through the injection sub-pipe 10 to the end of the injection conduit 1, the material flows from the injection sub-pipe 10 into the corresponding injection port 15, then, the material through the injection bevel 16 into the injection head 3, finally into the mold to complete the injection molding, the connecting conduit 2 and the injection head 3 use heat preservation materials, can prevent the injection material in the injection port 15 and the injection bevel 16 temperature reduction and gradually solidified, ensure the smooth progress of the injection process, when the injection material needs to be replaced, the operator first unscrew the threads of the inner threaded pipe 4 and the outer threaded pipe 9, remove the connecting conduit 2 and the injection head 3 for cleaning, after cleaning, align the threads of the inner threaded pipe 4 with the threads of the outer threaded pipe 9 and screw them together, in this process, the clamping block 6 is usually extended out of the telescopic slot 13 under the action of the spring 14, when the injection port 15 is corresponding to the corresponding injection sub-pipe 10 by rotating the connecting conduit 2, the clamping block 6 is pressed to make the spring 14 compressed, the clamping block 6 is retracted into the telescopic slot 13, when the injection port 15 is accurately corresponding to the corresponding injection sub-pipe 10, the clamping block 6 is rotated to the position of the corresponding clamping slot 8, at this time the clamping block 6 is not pressed, the spring 14 returns to its original state, its rebound force clamps the clamping block 6 in the clamping slot 8, then tighten the inner threaded pipe 4 and the outer threaded pipe 9, complete the connection and adjustment of the device, ensure the accuracy and stability of the injection process.

[0048] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber-reinforced polymer precision injection runner device, comprising an injection conduit (1) and an injection head (3), one end of the injection conduit (1) being provided with the injection head (3), characterized in that: The injection conduit (1) is provided with a multi-channel structure, one end of the injection conduit (1) is provided with a nozzle structure corresponding to the multi-channel structure, and the nozzle structure and the outer side of the injection conduit (1) are provided with a locking and adjusting structure.

2. The fiber-reinforced polymer precision injection runner device of claim 1, wherein: The multi-channel structure comprises injection sub-pipes (10), spiral heating pipes (11) and heating pipes (12), a plurality of circumferentially uniformly distributed injection sub-pipes (10) are fixedly connected between the two symmetrical planes in the injection conduit (1), the two ends of the injection sub-pipes (10) are communicated with the two ends of the injection conduit (1), a spiral heating pipe (11) is fixedly connected between the two symmetrical planes in the injection conduit (1), the two ends of the spiral heating pipe (11) are fixedly connected with the injection conduit (1), the spiral heating pipe (11) is attached to the inner cylindrical surface of the injection conduit (1), the spiral heating pipe (11) is between the inner wall of the injection conduit (1) and the injection sub-pipes (10), a heating pipe (12) is fixedly connected at the middle position between the two symmetrical planes in the injection conduit (1), the two ends of the heating pipe (12) are fixedly connected with the injection conduit (1), and the heating pipe (12) is between the injection sub-pipes (10).

3. The fiber-reinforced polymer precision injection runner apparatus of claim 2, wherein: The nozzle structure comprises a connecting conduit (2), an injection head (3), an injection port (15) and an injection inclined port (16), one side of the connecting conduit (2) away from the injection head (3) is attached to one plane of the injection conduit (1), an injection port (15) is vertically and penetratingly provided in the plane of the connecting conduit (2), the injection port (15) corresponds to the injection sub-pipe (10), one end of the connecting conduit (2) is fixedly connected with the injection head (3), the end with a larger aperture of the injection head (3) is fixedly connected with the connecting conduit (2), and one side of the injection head (3) connected with the connecting conduit (2) is obliquely and penetratingly provided with an injection inclined port (16) corresponding to the injection port (15).

4. The fiber-reinforced polymer precision injection runner apparatus of claim 3, wherein: The locking and adjusting structure comprises an annular protrusion one (5), a telescopic groove (13), a clamping block (6) and a spring (14), an annular protrusion one (5) is fixedly connected to the outer cylindrical surface of the connecting conduit (2) away from the injection head (3), the outer cylindrical surface of the annular protrusion one (5) is provided with a telescopic groove (13), one side of the telescopic groove (13) opposite to the opening is fixedly connected with a spring (14), the other end of the spring (14) is fixedly connected with a clamping block (6), and the spherical one end of the clamping block (6) is outside the telescopic groove (13).

5. The fiber reinforced polymer precision injection molding runner apparatus of claim 4, wherein: The locking and adjusting structure further comprises an internally threaded pipe (4), an annular protrusion two (7) and a clamping groove (8), the annular protrusion two (7) is fixedly connected to the inner cylindrical surface of the internally threaded pipe (4) close to one end, the internally threaded pipe (4) is connected with the connecting conduit (2) in a sleeved manner and the annular protrusion two (7) is connected with the annular protrusion one (5) in a clamped manner, a plurality of clamping grooves (8) are provided in the inner cylindrical surface of the internally threaded pipe (4) close to the annular protrusion two (7), the clamping grooves (8) correspond to the clamping blocks (6) and are connected with the clamping blocks (6) in a plugged manner, the number of the clamping grooves (8) corresponds to the number of the injection sub-pipes (10) and the distribution angles are the same.

6. The fiber-reinforced polymer precision injection molding runner device of claim 5, wherein: The outer cylindrical surface of the injection conduit (1) is fixedly connected with an externally threaded pipe (9) near one end of the connecting conduit (2), the inner cylindrical surface of the externally threaded pipe (9) is fixedly connected with the injection conduit (1), and the external thread of the externally threaded pipe (9) is in threaded connection with the internal thread of the internally threaded pipe (4).

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