Material uniform dispersion equipment for thermoplastic composite material extrusion molding

Abstract

The utility model discloses material uniform dispersion equipment for thermoplastic composite material extrusion, and relates to the technical field of thermoplastic composite material extrusion. The rapid dispersing device comprises a hopper, a rapid dispersing assembly and an auxiliary dispersing assembly, an adjusting frame is arranged at the top of the hopper, the bottom of the adjusting frame is fixedly connected with the hopper, the rapid dispersing assembly comprises two limiting mechanisms, the bottoms of the limiting mechanisms are fixedly connected with the hopper, and the auxiliary dispersing assembly is fixedly connected with the hopper. Driving motors are fixedly connected to the two sides between the two limiting mechanisms. The stirring shaft is driven by the driving motor to rotate through the rapid dispersing assembly, meanwhile, the driving motor transversely reciprocates along the sliding rod through meshing transmission of the gear and the toothed plate, the stirring shaft covers different transverse areas of the hopper in the rotating and stirring process, and an agglomeration structure formed by material flowing in a wall attaching mode is forcibly dispersed; dispersion dead angles caused by local retention are eliminated, and it is ensured that materials are evenly distributed in the vertical and horizontal directions.

Description

Technical Field

[0001] This utility model belongs to the field of thermoplastic composite material extrusion technology, and in particular relates to a material uniform dispersion device for thermoplastic composite material extrusion. Background Technology

[0002] Thermoplastic composite extrusion is a plastic molding process that involves heating a thermoplastic composite material to a viscous state, then pressing it through an extrusion die to form a continuous body with a cross-section similar to the die shape. The material is then cooled and solidified into a glassy state, and finally cut to obtain plastic products with specific geometric shapes and dimensions. This process is suitable for producing products such as pipes, rods, plates, and profiles with irregular cross-sections. It features continuous production, high automation, easy process control, and stable product quality.

[0003] In existing thermoplastic composite extrusion, the lack of effective pre-dispersion measures in the hopper and the absence of a reasonable flow guiding structure in the hopper make it easy for materials to agglomerate, flow along the wall, or stagnate locally, making it difficult to distribute evenly. Moreover, the core of thermoplastic composites is the synergistic effect of the resin matrix and the reinforcing material. If the reinforcing material is not dispersed evenly during extrusion, it will lead to excessively high or low concentrations of the reinforcing material in local areas, directly affecting the mechanical properties and surface quality of the extruded product, which is not conducive to its use.

[0004] To address these issues, we provide a material uniform dispersion device for thermoplastic composite extrusion, which solves the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a uniform dispersion device for thermoplastic composite material extrusion. By combining a rapid dispersion component and an auxiliary dispersion component, it solves the problem in the prior art that the material dispersion of thermoplastic composite material extrusion is uneven, which easily leads to material agglomeration, wall-adhering flow or local stagnation, affecting the mechanical properties and surface quality of the extruded product.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a material uniform dispersion device for thermoplastic composite material extrusion, comprising a hopper, a rapid dispersion component, and an auxiliary dispersion component. An adjusting frame is mounted on the top of the hopper, and the bottom of the adjusting frame is fixedly connected to the hopper. The rapid dispersion component includes two limiting mechanisms, the bottom of which is fixedly connected to the hopper. A drive motor is fixedly connected to both sides between the two limiting mechanisms. A stirring shaft is fixedly connected to the bottom of the output end of the drive motor, and a rotating shaft is fixedly connected to the top of the output end of the drive motor. A gear is fixedly connected to the surface of the rotating shaft. A toothed plate is fixedly connected to the rear side of the inner cavity of the adjusting frame, and the front side of the toothed plate meshes with the gear. A dispersion mechanism is mounted on the top of the inner cavity of the hopper. The auxiliary dispersion component includes a stabilizing frame, both sides of which are movably connected to the adjusting frame. A push plate is fixedly connected to the top of the stabilizing frame, and cams are mounted on both sides of the front side of the push plate. The top of the rotating shaft passes through the adjusting frame and is fixedly connected to the cams.

[0008] The present invention is further configured such that the limiting mechanism includes a slide rod, the bottom of the slide rod is fixedly connected to the hopper, and both sides of the surface of the slide rod are slidably connected to a sliding sleeve. The opposite side of the two sliding sleeves is fixedly connected to the drive motor. The sliding sleeves can slide smoothly left and right on the surface of the slide rod. The slide rod and the sliding sleeves enable the drive motor to move smoothly left and right, thereby improving the dispersion effect of the drive motor and the stirring shaft on the material.

[0009] The present invention is further configured such that the dispersing mechanism includes a turntable, a dispersing plate is fixedly connected to the top of the turntable, a rotary motor is fixedly connected to the bottom of the inner cavity of the hopper, the top of the output end of the rotary motor passes through the hopper and is fixedly connected to the turntable, the rotary motor can control the rotation of the turntable, the turntable is used to control the rotation of the dispersing plate, so that after the material falls into the hopper, the material is thrown out by the rotating dispersing plate, avoiding the material from accumulating at the bottom of the hopper and failing to mix evenly.

[0010] The present invention is further configured such that the top of the adjusting frame is provided with a sliding groove for use with the rotating shaft, the surface of the rotating shaft is slidably connected to the inner wall of the sliding groove, the sliding groove allows the rotating shaft to move left and right easily, and the surface of the rotating shaft is slidably connected to the inner wall of the sliding groove to prevent it from deviating during movement.

[0011] The present invention is further configured such that an electric push rod is fixedly connected to the rear side of the stabilizer, and an anti-slip plate is fixedly connected to the front side of the output end of the electric push rod through the stabilizer. The electric push rod can control the position of the anti-slip plate, and the anti-slip plate can squeeze the hopper to prevent it from shaking.

[0012] The present invention is further provided that a triangular reinforcing plate is fixedly connected to the top of the inner cavity of the push plate, and mounting holes are provided on both sides of the bottom of the stabilizer. The triangular reinforcing plate can increase the stability of the push plate and prevent it from deforming during use.

[0013] The present invention is further configured such that a discharge pipe is connected to the bottom of the left side of the hopper, and a sealing cap is fitted on the left end of the discharge pipe. Both sides of the adjusting frame and the stabilizing frame are movably connected through bearings. The discharge pipe can discharge the dispersed and mixed material inside the hopper to the extruder for extrusion.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a rapid dispersion component to drive a stirring shaft to rotate via a drive motor. Simultaneously, through the meshing transmission of gears and toothed plates, the drive motor moves laterally back and forth along the slide bar. During the rotation and stirring process, the stirring shaft covers different areas laterally of the hopper, forcibly breaking up the agglomerated structure formed by the material flowing against the wall, eliminating the dispersion dead zones caused by local stagnation, and ensuring that the material is evenly distributed in both vertical and horizontal directions.

[0016] 2. This utility model uses an auxiliary dispersion component, in which a rotating shaft drives a cam to rotate, which in turn drives a pusher plate to periodically swing the hopper back and forth. Under the action of the swing inertial force and the centrifugal throwing action of the dispersion plate, the material is continuously reorganized and mixed. The stabilizing frame limits the swing amplitude of the hopper through an electric push rod and an anti-slip plate to prevent deviation and tipping, so that the reinforcing material forms a stable dispersion state in the resin matrix, avoiding surface defects in the extruded product due to concentration differences. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A perspective view of a device for uniformly dispersing materials in thermoplastic composite material extrusion.

[0019] Figure 2 A side view of a material uniform dispersion device for thermoplastic composite material extrusion;

[0020] Figure 3 A cross-sectional view of the hopper in a material uniform dispersion device for thermoplastic composite material extrusion;

[0021] Figure 4 An exploded view of a rapid dispersion component in a thermoplastic composite material extrusion uniform dispersion device;

[0022] Figure 5 This is a schematic diagram of an auxiliary dispersion component in a thermoplastic composite material extrusion uniform dispersion device.

[0023] In the attached diagram: 1. Hopper; 2. Adjusting frame; 3. Rapid dispersion component; 31. Limiting mechanism; 32. Drive motor; 33. Stirring shaft; 34. Rotating shaft; 35. Gear; 36. Toothed plate; 37. Dispersion mechanism; 4. Auxiliary dispersion component; 41. Stabilizing frame; 42. Push plate; 43. Cam; 311. Slide rod; 312. Sliding sleeve; 371. Turntable; 372. Dispersion plate; 373. Rotary motor; 5. Electric push rod; 6. Anti-slip plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model relates to a material uniform dispersion device for thermoplastic composite material extrusion, comprising a hopper 1, a rapid dispersion component 3, and an auxiliary dispersion component 4. An adjusting frame 2 is mounted on the top of the hopper 1, and the bottom of the adjusting frame 2 is fixedly connected to the hopper 1. The rapid dispersion component 3 includes two limiting mechanisms 31, the bottom of which is fixedly connected to the hopper 1. Drive motors 32 are fixedly connected to both sides between the two limiting mechanisms 31. A stirring shaft 33 is fixedly connected to the bottom of the output end of the drive motor 32. The top of the output end of the drive motor 32... A rotating shaft 34 is fixedly connected to the hopper 1. A gear 35 is fixedly connected to the surface of the rotating shaft 34. A toothed plate 36 is fixedly connected to the rear side of the inner cavity of the adjusting frame 2. The front side of the toothed plate 36 meshes with the gear 35. A dispersing mechanism 37 is provided at the top of the inner cavity of the hopper 1. The auxiliary dispersing component 4 includes a stabilizing frame 41. Both sides of the inner cavity of the stabilizing frame 41 are movably connected to the adjusting frame 2. A push plate 42 is fixedly connected to the top of the stabilizing frame 41. Cams 43 are provided on both sides of the front side of the push plate 42. The top of the rotating shaft 34 passes through the adjusting frame 2 and is fixedly connected to the cams 43.

[0027] Specifically: the adjusting frame 2 facilitates the installation and fixing of the toothed plate 36; the limiting mechanism 31 is used to limit the two drive motors 32; the stirring shaft 33 can cooperate with the drive motors 32 to stir and disperse the material, so that the resin matrix and reinforcing material are evenly mixed; the rotating shaft 34 can cooperate with the drive motors 32 to control the rotation of the gear 35 and the cam 43; the gear 35 can cooperate with the toothed plate 36 to control the position of the two drive motors 32; the cam 43 can cooperate with the push plate 42 to control the hopper 1 to swing back and forth continuously, increasing the dispersion effect of the material; and the stabilizing frame 41 can increase the stability of the hopper 1 and prevent the hopper 1 from tipping over during the swinging process.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, the limiting mechanism 31 includes a slide rod 311, the bottom of which is fixedly connected to the hopper 1. Sliding sleeves 312 are slidably connected to both sides of the slide rod 311 surface. The opposite sides of the two sliding sleeves 312 are fixedly connected to the drive motor 32. The dispersing mechanism 37 includes a turntable 371, the top of which is fixedly connected to a dispersing plate 372. A rotary motor 373 is fixedly connected to the bottom of the inner cavity of the hopper 1. The top of the output end of the rotary motor 373 penetrates the hopper 1 and is fixedly connected to the turntable 371. Adjustment... The top of the frame 2 is provided with a sliding groove that works with the rotating shaft 34. The surface of the rotating shaft 34 is slidably connected to the inner wall of the sliding groove. The rear side of the stabilizer 41 is fixedly connected with an electric push rod 5. The front side of the output end of the electric push rod 5 passes through the stabilizer 41 and is fixedly connected with an anti-slip plate 6. The top of the inner cavity of the push plate 42 is fixedly connected with a triangular reinforcing plate. The bottom of the stabilizer 41 is provided with mounting holes on both sides. The bottom of the left side of the hopper 1 is connected to a discharge pipe. The left end of the discharge pipe is fitted with a sealing cap. The two sides of the adjusting frame 2 are movably connected to the stabilizer 41 through bearings.

[0030] Specifically: the sliding sleeve 312 can slide smoothly left and right on the surface of the sliding rod 311. The sliding rod 311 and the sliding sleeve 312 enable the drive motor 32 to move smoothly left and right, improving the dispersion effect of the drive motor 32 and the stirring shaft 33 on the material. The rotary motor 373 can control the rotation of the turntable 371. The turntable 371 is used to control the rotation of the dispersing plate 372, so that after the material falls into the hopper 1, the material is thrown out by the rotating dispersing plate 372, avoiding the accumulation of material at the bottom of the hopper 1 and the inability to mix evenly. The sliding groove can facilitate the left and right movement of the rotating shaft 34. The surface of the rotating shaft 34 is slidably connected to the inner wall of the sliding groove to prevent it from deviating during movement. The electric push rod 5 can control the position of the anti-slip plate 6. The anti-slip plate 6 can squeeze the hopper 1 to prevent it from shaking. The triangular reinforcing plate can increase the stability of the push plate 42 and prevent it from deforming during use. The discharge pipe can discharge the dispersed and mixed material inside the hopper 1 to the extruder for extrusion.

[0031] The working principle of this utility model is as follows: When material is added to hopper 1, drive motor 32 starts and drives stirring shaft 33 to rotate. Since rotating shaft 34 is connected to drive motor 32, gear 35 rotates accordingly. The meshing action between gear 35 and toothed plate 36 causes drive motor 32 to move laterally back and forth along slide bar 311. Stirring shaft 33 moves laterally while rotating, covering material in different areas of hopper 1. During the stirring process, rotating motor 373 drives turntable 371 to drive dispersing plate 372 to rotate, quickly dispersing the material at the bottom of hopper 1, so that the various materials are evenly mixed. At the same time, rotating shaft 34 drives cam 43 to rotate synchronously. The wheel 43 periodically pushes the push plate 42, causing the hopper 1 to swing back and forth under the constraint of the stabilizer 41. The material is continuously reorganized and mixed under the action of the swing inertial force, avoiding local accumulation. Through the lateral movement of the stirring shaft 33 and the periodic swing of the hopper 1, the material is fully dispersed in the vertical and horizontal directions. After the mixing is completed, the electric push rod 5 is turned on, and the electric push rod 5 pushes the anti-slip plate 6 to press against the hopper 1 to prevent the hopper 1 from continuing to swing. Then the discharge pipe at the bottom of the hopper 1 is turned on, and the evenly dispersed material enters the subsequent extrusion process to avoid uneven material dispersion, which would lead to excessively high or low concentration of reinforcement in local areas, directly affecting the mechanical properties and surface quality of the extruded product.

[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A device for uniform dispersion of a thermoplastic composite material extrusion mass, comprising a hopper (1), a rapid dispersion assembly (3) and an auxiliary dispersion assembly (4), characterized in that: The top of the hopper (1) is provided with an adjusting frame (2), and the bottom of the adjusting frame (2) is fixedly connected with the hopper (1); The quick dispersion assembly (3) comprises two limiting mechanisms (31), the bottom of the limiting mechanism (31) is fixedly connected with the hopper (1), the two sides between the two limiting mechanisms (31) are fixedly connected with a driving motor (32), the bottom of the output end of the driving motor (32) is fixedly connected with a stirring shaft (33), the top of the output end of the driving motor (32) is fixedly connected with a rotating shaft (34), the surface of the rotating shaft (34) is fixedly connected with a gear (35), the rear side of the inner cavity of the adjusting frame (2) is fixedly connected with a toothed plate (36), the front side of the toothed plate (36) is engaged with the gear (35), and the top of the inner cavity of the hopper (1) is provided with a dispersion mechanism (37). The auxiliary dispersion assembly (4) comprises a stabilizing frame (41), the two sides of the inner cavity of the stabilizing frame (41) are movably connected with the adjusting frame (2), the top of the stabilizing frame (41) is fixedly connected with a push plate (42), the two sides of the front side of the push plate (42) are provided with cams (43), and the top of the rotating shaft (34) penetrates through the adjusting frame (2) and is fixedly connected with the cams (43).

2. A thermoplastic composite material extrusion material uniform dispersion device according to claim 1, characterized in that: The limiting mechanism (31) comprises a sliding rod (311), the bottom of the sliding rod (311) is fixedly connected with the hopper (1), and the two sides of the surface of the sliding rod (311) are slidably connected with sliding sleeves (312).

3. A thermoplastic composite material extruded material uniform dispersion device according to claim 1, characterized in that: The dispersion mechanism (37) comprises a rotating disc (371), the top of the rotating disc (371) is fixedly connected with a dispersion sheet (372), the bottom of the inner cavity of the hopper (1) is fixedly connected with a rotating motor (373), and the top of the output end of the rotating motor (373) penetrates through the hopper (1) and is fixedly connected with the rotating disc (371).

4. The apparatus of claim 1, wherein: The top of the adjusting frame (2) is provided with a sliding groove matched with the rotating shaft (34), and the surface of the rotating shaft (34) is slidably connected with the inner wall of the sliding groove.

5. The apparatus of claim 1, wherein: The rear side of the stabilizing frame (41) is fixedly connected with an electric push rod (5), the front side of the output end of the electric push rod (5) penetrates through the stabilizing frame (41) and is fixedly connected with an anti-skid plate (6).

6. A thermoplastic composite material extruded material uniform dispersion apparatus according to claim 1, characterized in that: The top of the inner cavity of the push plate (42) is fixedly connected with a triangular reinforcing plate, and the two sides of the bottom of the stabilizing frame (41) are provided with mounting holes.

7. The apparatus of claim 1, wherein: The bottom of the left side of the hopper (1) is communicated with a discharge pipe, the left end of the discharge pipe is sleeved with a sealing cover, and the two sides of the adjusting frame (2) and the stabilizing frame (41) are movably connected through bearings.

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