Injection molding device for automobile injection molding part

Abstract

The utility model discloses an injection molding device of an automobile injection molded part, which comprises a heating cylinder, the inner wall of the bottom of the heating cylinder is fixedly connected with a heating plate, the outer wall of the top of the heating cylinder is fixedly provided with a material conveying pipe communicated with the inside, and the bottom of the outer wall of one side of the heating cylinder is fixedly provided with a screw extruder. A plurality of groups of multifunctional stirring mechanisms are arranged inside the heating cylinder, each multifunctional stirring mechanism comprises a stirring frame and a material screening net surface, the outer wall of each stirring frame is provided with a mounting groove, the two sides of each mounting groove are communicated, and the outer wall of each material screening net surface is fixedly connected with the inner wall of the corresponding mounting groove. According to the screw extruder, plastic particles with large sizes can be cracked and crushed and are easier to melt, and after the plastic particles in the heating cylinder begin to be heated and melted, the large plastic particles which are difficult to melt can be fished by the screening net surface through the rotation of the stirring frame, so that the texture of materials extruded by the screw extruder can be uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding devices, and in particular relates to an injection molding device for automobile injection molding parts. Background Art

[0002] The automobile injection molding device is a device that melts and heats plastic particles and injects them into the mold cavity to obtain related plastic products. This device is mainly used in the manufacturing and production of the automobile industry and can produce various automobile parts, such as headlights, instrument panels, interior decoration parts, etc. With the continuous development of the plastics industry and modern new materials industry, the automobile injection molding device has become an important basic processing tool for the production of plastic products.

[0003] However, the conventional device still has the following problems when used:

[0004] Since a lot of large plastic particles are easily mixed in plastic particles, when such large plastic particles are processed synchronously with other small plastic particles, the heating rate will be insufficient and the large plastic particles will be difficult to completely melt. When the incompletely melted plastic particles are injected into the subsequent injection mold, the qualified rate of the injection molded parts will be reduced. Therefore, we need a device that can eliminate the large plastic particles that are difficult to melt synchronously. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an injection molding device for automobile injection molding parts, which has the advantage of being able to exclude large plastic particles that are difficult to melt synchronously.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device for automobile injection molded parts, comprising a heating cylinder, a heating plate is fixedly connected to the bottom inner wall of the heating cylinder, a feeding pipe connected to the interior is fixedly installed on the top outer wall of the heating cylinder, a screw extruder is fixedly installed on the bottom of the outer wall of one side of the heating cylinder, a plurality of multifunctional stirring mechanisms are arranged inside the heating cylinder, the multifunctional stirring mechanisms include a stirring frame and a screening mesh, the outer wall of the stirring frame is provided with mounting grooves connected on both sides, the outer wall of the screening mesh is fixedly connected to the inner wall of the mounting groove, cutting blades are arranged on the outer walls of both sides of the stirring frame, and a power mechanism connected to the stirring frame is arranged inside the heating cylinder.

[0007] The outer wall of the outer sleeve of the heating cylinder is fixedly connected to the top outer wall of the heating cylinder, and one end of the outer wall of the outer sleeve of the heating cylinder is fixedly connected to the axle center of the two-way running motor. The outer wall of the outer sleeve of the heating cylinder is fixedly connected to the axle center of the one end of the outer sleeve away from the two-way running motor. The top outer wall of the heating cylinder is provided with a through hole, and one side outer wall of the connecting rack is fixedly connected to the outer wall of one side of the outer sleeve rod, and the connecting rack and the outer wall of the outer sleeve rod are movably connected to the inner wall of the through hole, the bottom outer wall of the anti-stripping block is fixedly connected to the top outer wall of the outer sleeve rod, the outer wall of the running gear is meshed with the outer wall of the connecting rack, the inner wall of the outer sleeve rod is provided with a connecting hole, the bottom outer wall of the threaded rod is fixedly connected to the bottom inner wall of the heating cylinder, the outer wall of the threaded rod is movably connected to the inner wall of the connecting hole, and the outer wall of the anti-stripping block is provided with an exhaust hole connected to the inside of the connecting hole.

[0008] Preferably, the outer wall of the threaded rod is threadedly connected with an internal threaded tube, the bottom outer wall of the outer shaft sleeve is fixedly connected with an anti-slip slider, the top outer wall of the internal threaded tube is provided with a slide groove, the outer wall of the anti-slip slider is movably engaged with the inner wall of the slide groove, the outer wall of the internal threaded tube is fixedly connected with a connecting rod, the interior of the connecting rod is fixedly installed with an adjusting motor, and the axis of the adjusting motor is fixedly connected to the axis of the outer wall of one side of the stirring frame.

[0009] Preferably, an observation window communicating with the interior is provided on the top outer wall of the heating cylinder, one side outer wall of the observation window is fixedly connected with a hinge, one side outer wall of the hinge is fixedly connected with a protective cover, and the protective cover is hinged to the observation window through a hinge.

[0010] Preferably, a water pipe connected to the interior is fixedly mounted on one side of the top outer wall of the heating cylinder.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, plastic particles are injected into the heating cylinder through a feeding pipe, and the plastic particles are heated and melted by a heating plate. After processing, they are extruded to an injection mold for shaping by a screw extruder. The screw extruder is an extruding device available on the market. In the utility model, the plastic particles just injected into the heating cylinder are stirred by a stirring rack. By arranging an installation groove on the stirring rack, the installation groove can hit the plastic particles when the stirring rack rotates, so that larger plastic particles can be cracked and broken, and are more easily melted. When the plastic particles in the heating cylinder begin to melt due to the heat, the rotation of the stirring rack enables the screen mesh surface to salvage large and difficult-to-melt plastic particles, so that the texture of the material extruded by the screw extruder can be uniform, and the large-area contact stirring of the screen mesh surface accelerates the heat transfer between the plastic particles, so that the processing efficiency of the heating plate is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a front view structural schematic diagram of the utility model.

[0015] Figure 3 It is a schematic diagram of the internal front view structure of the heating tube of the utility model.

[0016] Figure 4 This is a schematic diagram of the internal structure of the heating tube of the utility model.

[0017] Figure 5 This is a schematic diagram of the stirring frame structure of the utility model.

[0018] In the figure: 1. Heating cylinder; 2. Heating plate; 3. Feed pipe; 4. Screw extruder; 5. Stirring frame; 6. Mounting groove; 7. Screening mesh; 8. Cutting blade; 9. Bidirectional running motor; 10. Shaft; 11. Running gear; 12. Connecting rack; 13. Outer shaft sleeve rod; 14. Anti-slip block; 15. Threaded rod; 16. Anti-slip slider; 17. Slide groove; 18. Internal threaded cylinder; 19. Connecting rod; 20. Adjusting motor; 21. Observation window; 22. Hinge; 23. Protective cover; 24. Water pipe; 25. Exhaust hole. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] For example, see Figures 1 to 5 The utility model provides a technical solution: an injection molding device for automobile injection molding parts, including a heating cylinder 1, a heating plate 2 is fixedly connected to the bottom inner wall of the heating cylinder 1, a feeding pipe 3 connected to the inside is fixedly installed on the top outer wall of the heating cylinder 1, a screw extruder 4 is fixedly installed on the bottom of the outer wall of one side of the heating cylinder 1, and multiple groups of multifunctional stirring mechanisms are arranged inside the heating cylinder 1. The multifunctional stirring mechanism includes a stirring frame 5 and a screening mesh surface 7. The outer wall of the stirring frame 5 is provided with mounting grooves 6 connected on both sides. The outer wall of the screening mesh surface 7 is fixedly connected to the inner wall of the mounting groove 6. Cutting blades 8 are arranged on the outer walls of both sides of the stirring frame 5. A power mechanism connected to the stirring frame 5 is arranged inside the heating cylinder 1.

[0021] In the utility model, plastic particles are injected into the heating cylinder 1 through the feeding pipe 3, and the plastic particles are heated and melted by the heating plate 2. After the processing is completed, they are extruded to the injection mold for shaping through the screw extruder 4. The screw extruder 4 is an extruding device available on the market. In the utility model, the plastic particles just injected into the heating cylinder 1 are stirred by the stirring frame 5. By arranging the mounting groove 6 on the stirring frame 5, the mounting groove 6 can hit the plastic particles when the stirring frame 5 rotates, so that the larger plastic particles can be cracked and broken, and are more easily melted. When the plastic particles in the heating cylinder 1 begin to melt due to the heat, the rotation of the stirring frame 5 enables the screening mesh surface 7 to salvage large particles of plastic particles that are difficult to melt, so that the texture of the material extruded by the screw extruder 4 can be uniform, and the large-area contact stirring of the screening mesh surface 7 accelerates the heat transfer between the plastic particles, so that the processing efficiency of the heating plate 2 is higher.

[0022] Embodiment 2, on the basis of embodiment 1, the power mechanism includes a bidirectional running motor 9, a shaft 10, a running gear 11, a connecting rack 12, an outer shaft sleeve rod 13, an anti-slip block 14 and a threaded rod 15, the bottom outer wall of the bidirectional running motor 9 is fixedly connected to the top outer wall of the heating tube 1, the outer wall of one end of the shaft 10 is fixedly connected to the axis of the bidirectional running motor 9, the outer wall of one end of the shaft 10 away from the bidirectional running motor 9 is fixedly connected to the axis of one side outer wall of the shaft 10, a through hole is provided on the top outer wall of the heating tube 1, the outer wall of one side of the connecting rack 12 is fixedly connected to the outer wall of one side of the outer shaft sleeve rod 13, the outer wall of the connecting rack 12 and the outer shaft sleeve rod 13 are movably connected to the inner wall of the through hole, the bottom outer wall of the anti-slip block 14 is fixedly connected to the top outer wall of the outer shaft sleeve rod 13, the running gear The outer wall of the wheel 11 is meshed and connected with the outer wall of the connecting rack 12, the inner wall of the outer shaft sleeve rod 13 is provided with a connecting hole, the bottom outer wall of the threaded rod 15 is fixedly connected to the bottom inner wall of the heating tube 1, the outer wall of the threaded rod 15 is movably connected to the inner wall of the connecting hole, the outer wall of the anti-slip block 14 is provided with an exhaust hole 25 connected to the inside of the connecting hole, the outer wall of the threaded rod 15 is threadedly connected with the internal threaded tube 18, the bottom outer wall of the outer shaft sleeve rod 13 is fixedly connected with an anti-slip slider 16, the top outer wall of the internal threaded tube 18 is provided with a slide groove 17, the outer wall of the anti-slip slider 16 is movably engaged with the inner wall of the slide groove 17, the outer wall of the internal threaded tube 18 is fixedly connected with a connecting rod 19, and an adjusting motor 20 is fixedly installed inside the connecting rod 19, and the axis of the adjusting motor 20 is fixedly connected to the axis of the outer wall of one side of the stirring frame 5.

[0023] In the utility model, the operating gear 11 is rotated by the bidirectional operating motor 9, and the rotation of the operating gear 11 is utilized to make the meshing connection connecting rack 12 move vertically with the outer shaft sleeve rod 13, and the reciprocating motion of the stirring frame 5 in the heating tube 1 is realized by the vertical movement of the outer shaft sleeve rod 13, and the air circulation in the connecting hole is ensured by arranging the exhaust hole 25, and the threaded rod 15 and the internal threaded tube 18 are arranged, so that the stirring frame 5 can realize the rotation connection while reciprocating motion, and the contact surface between the stirring frame 5 and the plastic particles is further increased by this mechanism, and the heat transfer between the plastic particles is accelerated, and the deflection angle of the stirring frame 5 is adjusted by starting the regulating motor 20. When it is necessary to crush hard plastic particles, the stirring frame 5 is laid flat at 90°, and when it is necessary to salvage large particles of plastic particles that are difficult to melt, the stirring frame 5 is deflected to 45° by adjusting the motor 20, so as to facilitate the rotation salvage.

[0024] Embodiment 3, on the basis of embodiment 2, an observation window 21 connected to the interior is provided on the top outer wall of the heating tube 1, one side outer wall of the observation window 21 is fixedly connected with a hinge 22, one side outer wall of the hinge 22 is fixedly connected with a protective cover 23, and the protective cover 23 is hinged to the observation window 21 through the hinge 22.

[0025] In the utility model, the salvaged plastic particles and impurities are moved to the bottom of the observation window 21 for easy processing by the staff.

[0026] Embodiment 4, based on embodiment 1, a water pipe 24 communicating with the interior is fixedly mounted on one side of the top outer wall of the heating cylinder 1 .

[0027] Since the density of plastic particles is relatively high, the screen mesh surface 7 may be clogged after processing. In the utility model, a water pipe 24 is provided to spray cleaning liquid to facilitate cleaning of the screen mesh surface 7 after processing.

[0028] Working principle and use process of the utility model: In the utility model, plastic particles are injected into the heating cylinder 1 through the feeding pipe 3, and the plastic particles are heated and melted by the heating plate 2. After the processing is completed, they are extruded to the injection mold for shaping through the screw extruder 4. In the utility model, the plastic particles just injected into the heating cylinder 1 are stirred by the stirring frame 5. By arranging the mounting groove 6 on the stirring frame 5, the mounting groove 6 can hit the plastic particles when the stirring frame 5 rotates, so that the larger plastic particles can be cracked and broken, and are more easily melted. When the plastic particles in the heating cylinder 1 begin to melt due to the heat, the rotation of the stirring frame 5 enables the screening mesh surface 7 to salvage the large-particle plastic particles that are difficult to melt, so that the texture of the material extruded by the screw extruder 4 can be uniform, and the large-area contact stirring of the screening mesh surface 7 accelerates the heat transfer between the plastic particles, so that the processing efficiency of the heating plate 2 is higher. In the utility model, the operating gear 11 is rotated by the bidirectional operating motor 9, and the rotation of the operating gear 11 is used to make the meshing connection connecting rack 12 carry the outer shaft sleeve rod 13 to Vertical movement, through the vertical movement of the outer shaft sleeve rod 13, the reciprocating motion of the stirring frame 5 in the heating cylinder 1 is realized, and the air circulation in the connecting hole is guaranteed by setting the exhaust hole 25. By setting the threaded rod 15 and the internal threaded cylinder 18, the stirring frame 5 can realize rotation connection while reciprocating motion. Through this mechanism, the contact surface between the stirring frame 5 and the plastic particles is further increased, and the heat transfer between the plastic particles is accelerated. The deflection angle of the stirring frame 5 is adjusted by starting the adjustment motor 20. When it is necessary to crush hard plastic particles, the stirring frame 5 is placed flat at 90°. When it is necessary to salvage large particles that are difficult to melt, the stirring frame 5 is deflected to 45° by adjusting the motor 20, so as to facilitate rotation salvage. In the utility model, the salvaged plastic particles and impurities are moved to the bottom of the observation window 21 for the convenience of staff to handle. Due to the large density of plastic particles, the screen mesh surface 7 may be blocked after processing. In the utility model, a water pipe 24 is set to spray cleaning liquid to facilitate the cleaning of the screen mesh surface 7 after processing.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding device for automobile injection molding parts, comprising a heating cylinder (1), characterized in that: The bottom inner wall of the heating cylinder (1) is fixedly connected to a heating plate (2); the top outer wall of the heating cylinder (1) is fixedly installed with a feed pipe (3) connected to the interior; the bottom of the outer wall of one side of the heating cylinder (1) is fixedly installed with a screw extruder (4); a plurality of multifunctional stirring mechanisms are arranged inside the heating cylinder (1); the multifunctional stirring mechanisms include a stirring frame (5) and a screening mesh surface (7); the outer wall of the stirring frame (5) is provided with a mounting groove (6) connected on both sides; the outer wall of the screening mesh surface (7) is fixedly connected to the inner wall of the mounting groove (6); the outer walls of both sides of the stirring frame (5) are provided with cutting blades (8); and the interior of the heating cylinder (1) is provided with a power mechanism connected to the stirring frame (5).

2. The injection molding device for automobile injection molded parts according to claim 1, characterized in that: The power mechanism comprises a bidirectional running motor (9), a shaft (10), a running gear (11), a connecting rack (12), an outer shaft sleeve rod (13), an anti-slip block (14) and a threaded rod (15); the bottom outer wall of the bidirectional running motor (9) is fixedly connected to the top outer wall of the heating tube (1); the outer wall of one end of the shaft (10) is fixedly connected to the axis of the bidirectional running motor (9); the outer wall of one end of the shaft (10) away from the bidirectional running motor (9) is fixedly connected to the axis of one side outer wall of the shaft (10); a through hole is formed on the top outer wall of the heating tube (1); the outer wall of one side of the connecting rack (12) is connected to the outer shaft sleeve rod (13); The outer wall of one side of the threaded rod (13) is fixedly connected, the connecting rack (12) and the outer wall of the outer shaft sleeve rod (13) are movably connected to the inner wall of the through hole, the bottom outer wall of the anti-slip block (14) is fixedly connected to the top outer wall of the outer shaft sleeve rod (13), the outer wall of the running gear (11) is meshingly connected to the outer wall of the connecting rack (12), the inner wall of the outer shaft sleeve rod (13) is provided with a connecting hole, the bottom outer wall of the threaded rod (15) is fixedly connected to the bottom inner wall of the heating tube (1), the outer wall of the threaded rod (15) is movably connected to the inner wall of the connecting hole, and the outer wall of the anti-slip block (14) is provided with an exhaust hole (25) connected to the inside of the connecting hole.

3. The injection molding device for automobile injection molded parts according to claim 2, characterized in that: The outer wall of the threaded rod (15) is threadedly connected to an internal threaded tube (18); the bottom outer wall of the outer shaft sleeve rod (13) is fixedly connected to an anti-slip slider (16); the top outer wall of the internal threaded tube (18) is provided with a slide groove (17); the outer wall of the anti-slip slider (16) is movably engaged with the inner wall of the slide groove (17); the outer wall of the internal threaded tube (18) is fixedly connected to a connecting rod (19); an adjusting motor (20) is fixedly installed inside the connecting rod (19); the axis of the adjusting motor (20) is fixedly connected to the axis of the outer wall of one side of the stirring frame (5).

4. The injection molding device for automobile injection molding according to claim 1, characterized in that: The top outer wall of the heating cylinder (1) is provided with an observation window (21) which is in communication with the interior; one side outer wall of the observation window (21) is fixedly connected to a hinge (22); one side outer wall of the hinge (22) is fixedly connected to a protective cover (23); the protective cover (23) is hingedly connected to the observation window (21) via the hinge (22).

5. The injection molding device for automobile injection molding according to claim 1, characterized in that: A water pipe (24) connected to the interior is fixedly mounted on one side of the top outer wall of the heating cylinder (1).

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