Thermal conductive plastic automatic feeding and discharging injection molding machine

Abstract

The utility model discloses a thermal conductive plastic automatic feeding and discharging injection molding machine, which belongs to the technical field of thermal conductive plastic injection molding machines and comprises a base and an injection molding part mounted in the middle of the base. The feeding assembly is mounted on one side of the base and used for conveying the plastic particles into the injection molding part and screening the plastic particles, so that the plastic particles with the specified size enter the injection molding part; the discharging assembly is mounted on the injection molding part and used for discharging the injection-molded parts in the injection molding part from the injection molding part; wherein the base is provided with a guide plate used for guiding out components discharged from the injection molding part, and the plastic particles can be screened in the feeding process, so that caked or large-particle raw materials are screened out, and the quality of injection molding products is prevented from being influenced by the caked or large-particle raw materials.

Description

Technical Field

[0001] This utility model relates to the field of thermally conductive plastic injection molding machine technology, specifically to an automated loading and unloading injection molding machine for thermally conductive plastics. Background Technology

[0002] Thermally conductive plastic injection molding machines are key equipment for the large-scale production of thermally conductive plastic products. However, traditional injection molding machines rely solely on screw conveyors to transport raw materials. The lack of an active particle size separation mechanism results in agglomerated or large-particle raw materials entering the injection molding machine, leading to poor melt uniformity and severely impacting the thermal conductivity and structural strength of the finished product. To address these issues, this invention provides a thermally conductive plastic injection molding machine with automated loading and unloading capabilities. Utility Model Content

[0003] To address the aforementioned technical deficiencies, the purpose of this utility model is to provide an automated loading and unloading injection molding machine for thermally conductive plastics, which can screen plastic granules during the loading process to remove clumps or large particles of raw material, thus preventing them from affecting the quality of the injection molded products.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: This utility model provides an automated loading and unloading injection molding machine for thermally conductive plastics, comprising:

[0005] Base;

[0006] The injection molding part is installed in the middle of the base;

[0007] The feeding assembly is installed on one side of the base and is used to transport plastic granules into the injection molding section and screen the plastic granules so that plastic granules of a specified size enter the injection molding section.

[0008] A feeding assembly is installed on the injection molding section and is used to discharge the molded parts from the injection molding section.

[0009] The base is provided with a guide plate for discharging components that will be discharged from the injection molding section.

[0010] Preferably, the feeding assembly includes:

[0011] The hopper is mounted on the base;

[0012] A screening section is installed at the feed inlet of the injection molding section;

[0013] The auger conveyor is installed between the hopper and the screening section to transport plastic granules from inside the hopper to the screening section, where the plastic granules are screened after entering the screening section.

[0014] Preferably, the screening section includes:

[0015] A frame, which is fixedly connected to the feed port of the injection molding section;

[0016] A sieve plate, which is installed inside the frame;

[0017] The screen plate vibrates up and down when the auger conveyor is working.

[0018] Preferably, the sieve plate is shaped like a rounded arch with a central protrusion.

[0019] Preferably, a fixed frame is fixedly connected to the screen plate. The fixed frame is U-shaped, with both ends of its open end fixedly connected to the screen plate. The central shaft of the auger conveyor extends to the bottom of the closed end of the fixed frame and is fixedly connected to an eccentric ball.

[0020] Preferably, the feeding assembly includes:

[0021] Multiple ejector pins are slidably mounted on the fixed mold of the injection unit and driven by a blanking ejector pin mounted on the fixed mold of the injection unit.

[0022] Preferably, multiple ejector rods located in the same row are connected by connecting rods, the outer shell of the ejector rod is mounted on the fixed mold of the injection part, and the output rod of the ejector rod is connected to the connecting rod.

[0023] Preferably, one end of the ejector pin located inside the fixed mold of the injection molding part is folded upwards and outwards to form a convex circle, and a groove adapted to the convex circle is provided on the inner side of the fixed mold of the injection molding part.

[0024] Preferably, the guide plate is located on the side of the injection molding section away from the feeding assembly, the guide plate is hinged to the inside of a through-hole provided on the base, and the guide plate is driven by a guide push rod installed on the base.

[0025] Preferably, a base plate is fixedly connected to the output rod of the guide push rod, and a spring is installed between the base plate and the guide plate.

[0026] The beneficial effects of this utility model are as follows:

[0027] This invention utilizes a sieve plate to screen plastic particles entering the frame, separating clumps of particles and preventing them from affecting material quality during melting, thereby improving the quality of the injection-molded product.

[0028] This invention, through the arrangement of an auger conveyor, an eccentric ball, and a screen plate, enables the auger conveyor to vibrate the screen plate via the eccentric ball when it starts up, thereby further improving the screening effect. In addition, the screen plate adopts an arched design with a raised center, which allows agglomerated particles to slide off to the sides, reducing the impact on subsequent screening efficiency.

[0029] This invention utilizes a guide plate, springs, and guide push rods to allow the molded parts to fall naturally onto the guide plate after injection molding. The springs cushion the impact, and the guide push rods then retract via the output rods to push the parts to the outside, thus achieving automated unloading. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram (first-person view) of an automated loading and unloading injection molding machine for thermally conductive plastics provided in an embodiment of this utility model.

[0032] Figure 2 A schematic diagram (second perspective) of an automated loading and unloading injection molding machine for thermally conductive plastics provided for an embodiment of this utility model.

[0033] Figure 3 This is a schematic diagram showing the connection between the substrate and the spring of this utility model.

[0034] Figure 4 This is an exploded view of the ejector pin and fixed mold of this utility model.

[0035] Figure 5 This is an exploded view of the sieve plate and frame of this utility model.

[0036] Figure 6 This is a cross-sectional view of the frame of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Base, 2. Hopper, 3. Screw conveyor, 4. Frame, 5. Screen plate, 6. Fixed frame, 7. Eccentric ball, 8. Push rod, 9. Discharge push rod, 10. Connecting rod, 11. Sinkhole, 12. Through hole, 13. Guide push rod, 14. Base plate, 15. Spring, 16. Guide plate, 17. Fixed mold, 18. Moving mold, 19. Drive push rod. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] This utility model provides an automated loading and unloading injection molding machine for thermally conductive plastics, such as... Figures 1 to 6 As shown.

[0041] Example 1:

[0042] An automated loading and unloading injection molding machine for thermally conductive plastics includes a base 1, an injection unit installed in the middle of the base 1, the injection unit including a fixed mold 17, a moving mold 18, a drive push rod 19 and a melting assembly, the fixed mold 17 is fixedly installed on the base 1, the moving mold 18 is slidably connected to a support frame provided on the fixed mold 17, and the drive push rod 19 is installed on the support frame to control the sliding of the moving mold 18.

[0043] When the output rod of the drive push rod 19 extends, the moving mold 18 and the fixed mold 17 fit together, and injection molding can be performed at this time. When the output rod of the drive push rod 19 retracts, the moving mold 18 and the fixed mold 17 separate, and the injection-molded part can be taken out from the inside of the fixed mold 17.

[0044] A feeding assembly is installed on the side of the fixed mold 17 away from the moving mold 18 and on the base 1. The feeding assembly includes a hopper 2, an auger conveyor 3, and a screening section. The hopper 2 is fixedly installed on the base 1, and the screening section is fixedly installed at the inlet of the melting assembly. The auger conveyor 3 is installed between the hopper 2 and the screening section, and can input the plastic particles inside the hopper 2 into the screening section. After being screened in the screening section, the plastic particles will enter the melting assembly, where they will be melted and fed into the fixed mold 17.

[0045] The fixed mold 17 is equipped with a blanking assembly, which includes multiple ejector pins 8. The ejector pins 8 are slidably mounted on the fixed mold 17 and are arranged in two rows. The ejector pins 8 in the same row are linked together by a connecting rod 10. A blanking push rod 9 is installed between the connecting rod 10 and the fixed mold 17. The outer shell of the blanking push rod 9 is mounted on the fixed mold 17. The output rod of the blanking push rod 9 is fixedly connected to the connecting rod 10. The extension and retraction of the ejector pins 8 can be controlled by controlling the extension and retraction of the output rod of the blanking push rod 9. When the ejector pin 8 extends, it can push out the part that has been injected into the fixed mold 17, so that it is separated from the fixed mold 17, thus completing the blanking work.

[0046] The ejector pin 8 is located inside the fixed mold 17. One end of the ejector pin 8 is folded outwards to form a convex circle. The inner side of the fixed mold 17 is provided with a recess 11 that matches the convex circle. The recess 11 can prevent the convex circle from affecting the injection molding effect.

[0047] Example 2:

[0048] The screening unit includes a frame 4, which is a through-frame at both ends and is fixedly installed on the melting assembly. The lower opening of the frame 4 is located above the feed inlet of the melting assembly. Inside the frame 4, there is a convex, arched screen plate 5 with a central bulge. The surface of the screen plate 5 has evenly distributed screen holes. A fixed frame 6 is fixedly connected to the screen plate 5. The fixed frame 6 is U-shaped and located above the screen plate 5, with both ends of its open end fixedly connected to the screen plate 5. The central shaft of the auger conveyor 3 extends to the lower part of the fixed frame 6 and is fixedly connected to an eccentric ball 7. When the auger conveyor 3 starts, it drives the eccentric ball 7 to periodically impact the closed end of the fixed frame 6, causing the screen plate 5 to vibrate at high frequency. The convex design of the arched screen plate 5 causes agglomerated particles to slide to the edge, avoiding clogging of the screen holes, while qualified particles enter the interior of the melting assembly from the central area.

[0049] Example 3:

[0050] The moving mold 18 is located on the side away from the fixed mold 17 and on the base 1, with a through-hole 12. A guide plate 16 is hinged inside the through-hole 12. A guide push rod 13 is located below the guide plate 16. The guide push rod 13 is mounted on the base 1, and a base plate 14 is fixedly connected to the output rod of the guide push rod 13. A spring 15 is installed between the base plate 14 and the guide plate 16. One end of the spring 15 is fixedly connected to the base plate 14, and the other end is fixedly connected to the guide plate 16.

[0051] When the ejector rod 8 ejects the molded part from inside the fixed mold 17, the molded part will fall onto the guide plate 16. At this time, the spring 15 will contract due to the impact force, thus playing a buffering role. Afterwards, the output rod of the guide push rod 13 retracts, which can make the guide plate 16 rotate downward to discharge the part on it.

[0052] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A heat conductive plastic automated feeding and discharging injection molding machine, characterized in that, The utility model relates to a plastic injection molding machine, which comprises the following components: a base (1); an injection molding part installed in the middle of the base (1); a feeding assembly installed on one side of the base (1) for conveying plastic particles into the injection molding part and screening the plastic particles so that plastic particles of a specified size enter the injection molding part; a discharging assembly installed on the injection molding part for discharging parts completed by injection molding from the injection molding part; wherein the base (1) is provided with a guide plate (16) for guiding the parts discharged from the injection molding part.

2. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 1, wherein, The feeding assembly comprises: a hopper (2) installed on the base (1); a screening part installed at the feeding port of the injection molding part; an auger conveying device (3) installed between the hopper (2) and the screening part for conveying plastic particles in the hopper (2) into the screening part, and the plastic particles are screened after entering the screening part.

3. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 2, wherein, The screening part comprises: a frame (4) fixedly connected to the feeding port of the injection molding part; a sieve plate (5) installed inside the frame (4); wherein the sieve plate (5) vibrates up and down when the auger conveying device (3) is working.

4. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 3, wherein, The sieve plate (5) is in the shape of a circular arch with a convex middle part.

5. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 3, wherein, The sieve plate (5) is fixedly connected with a fixed frame (6) in the shape of a "U", the two ends of the open end of the fixed frame (6) are fixedly connected with the sieve plate (5), and the central shaft of the auger conveying device (3) extends below the closed end of the fixed frame (6) and is fixedly connected with an eccentric ball (7).

6. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 1, wherein, The discharging assembly comprises: a plurality of ejector pins (8) slidingly installed on the fixed mold (17) of the injection molding part and driven by a discharging push rod (9) installed on the fixed mold (17) of the injection molding part.

7. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 6, wherein, The plurality of ejector pins (8) located in the same column are connected by a connecting rod (10), the housing of the discharging push rod (9) is installed on the fixed mold of the injection molding part, and the output rod of the discharging push rod (9) is connected with the connecting rod (10).

8. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 6, wherein, One end of the ejector pin (8) inside the fixed mold (17) of the injection molding part is folded upwards and forms a convex circle, and the inner side of the fixed mold (17) of the injection molding part is provided with a sink (11) matched with the convex circle.

9. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 1, wherein, The guide plate (16) is located on the side of the injection molding part away from the feeding assembly, the guide plate (16) is hingedly installed inside the through hole (12) provided on the base (1), and the guide plate (16) is driven by a guide push rod (13) installed on the base (1).

10. The automated loading and unloading injection molding machine for thermally conductive plastic of claim 9, wherein, The output rod of the guide push rod (13) is fixedly connected with a base plate (14), and a spring (15) is installed between the base plate (14) and the guide plate (16).

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