An injection molding device for a plastic toy shell

Abstract

The present application provides an injection molding device for a plastic toy housing, which relates to the field of injection molding machines and includes a bracket, a melting cylinder arranged on the bracket, a feed inlet arranged on the melting cylinder, and a discharge nozzle arranged at the bottom of the melting cylinder. It further includes: a feeding mechanism arranged in the melting cylinder, a defoaming mechanism arranged in the melting cylinder, and an injection mechanism arranged in the melting cylinder. Through the arranged feeding mechanism, defoaming mechanism and injection mechanism, the present application realizes the removal of air bubbles inside the molten plastic toy raw material and discharges them outside the melting cylinder; through the arranged feeding mechanism, the rate of the plastic raw material entering the melting cylinder is adjusted, solving the problem of uneven plasticization of the plastic raw material in the melting cylinder in the prior art; through the arranged feeding mechanism, defoaming mechanism and injection mechanism, the process of injecting the molten plastic toy raw material into the mold is realized, reducing the process of injection by pressurization in the prior art.

Description

Technical Field

[0001] The present invention relates to the field of injection molding machines, and more particularly, to an injection molding device for plastic toy shells. Background Art

[0002] Injection molding machines are mainly used for the molding and processing of plastic products. They can process plastic raw materials (such as plastic pellets, powders) through a series of processes including heating and melting, injection, cooling, and solidification to produce plastic products of various shapes and sizes.

[0003] When processing plastic toy shells, when the plastic toy raw materials are heated and melted, bubbles will appear inside the molten plastic toy raw materials. When injecting into the mold in the next step, if the bubbles are not contained inside the plastic toy raw materials but are exposed on the surface of the plastic toy raw materials, it will cause defects with pores on the surface of the plastic toy raw materials, resulting in a low yield rate of plastic parts.

[0004] For example: The "High-quality injection molding machine with anti-bubble gap" disclosed in the Chinese invention patent (application number: 202110562902.4), its specification discloses that: An injection molding machine is also known as an injection molding machine or an injection machine. It is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to inject it and fill the mold cavity. Currently, when most injection molding machines are in use, since the molten plastic in actual conditions is mostly prone to being doped with bubbles, directly injecting the molten plastic into the closed mold cavity, when removing the molded part from the mold, if the bubbles are not contained inside the plastic part but are exposed on the surface of the plastic, it will cause defects with pores on the plastic surface, resulting in a low yield rate of plastic parts and not meeting people's usage requirements.

[0005] The above patent can prove the defects existing in the prior art.

[0006] Therefore, we make improvements on this and propose an injection molding device for plastic toy shells. Summary of the Invention

[0007] The purpose of the present invention is to address the current situation where when plastic toy raw materials are heated and melted, bubbles will appear inside the molten plastic toy raw materials, which will cause defects with pores on the surface of the plastic toy raw materials, resulting in a low yield rate of plastic parts.

[0008] To achieve the above-mentioned invention purpose, the present invention provides an injection molding device for plastic toy shells to improve the above problems.

[0009] Specifically, this application is as follows:

[0010] It includes a bracket, a melting cylinder arranged on the bracket, a feed inlet arranged on the melting cylinder, and a discharge nozzle arranged at the bottom of the melting cylinder. It further includes: a feeding mechanism arranged in the melting cylinder, a defoaming mechanism arranged in the melting cylinder, and an injection mechanism arranged in the melting cylinder;

[0011] The feeding mechanism includes a feeding disk arranged in the melting cylinder, holes arranged on the feeding disk, an adjusting component arranged in the melting cylinder, and a plugging component arranged in the melting cylinder;

[0012] The defoaming mechanism includes an arc-shaped block arranged in the melting cylinder and an exhaust component arranged in the melting cylinder;

[0013] The injection mechanism includes a pushing ring arranged in the melting cylinder and an unfolding component arranged in the melting cylinder.

[0014] As a preferred technical solution of the present application, the adjusting component includes a motor arranged on the melting cylinder, a telescopic column arranged at the output end of the motor, an electric telescopic rod arranged at the end of the telescopic column, a plurality of connecting plates arranged on the electric telescopic rod, the plurality of connecting plates are spirally distributed on the electric telescopic rod, there are a plurality of the arc-shaped blocks, and the plurality of arc-shaped blocks are respectively slidably arranged on the connecting plates, and a first spring is connected to the corresponding surfaces of the connecting plates and the arc-shaped blocks.

[0015] As a preferred technical solution of the present application, the plugging component includes a rubber ring arranged on the feeding disk, flat portions are arranged at the ends of the plurality of arc-shaped blocks, inclined portions are arranged on the sides of the plurality of arc-shaped blocks, and baffles are arranged on the plurality of arc-shaped blocks.

[0016] As a preferred technical solution of the present application, neither the rubber ring nor the feeding disk is in contact with the melting cylinder, the flat portion is adapted to the hole, one side of the inclined portion is wedge-shaped, and the other side of the inclined portion is curved.

[0017] As a preferred technical solution of the present application, the exhaust component includes exhaust plates arranged outside the pushing ring, there are a plurality of the exhaust plates, the plurality of exhaust plates are arranged in a circumferential array on the pushing ring, the pushing ring is arranged on the telescopic column, and ejecting plates are respectively slidably arranged on the plurality of exhaust plates.

[0018] As a preferred technical solution of the present application, the injection mechanism further includes a sliding groove arranged in the pushing ring, a thread is provided at the end of the ejecting plate, and the end of the ejecting plate is threadedly connected to the inner wall of the melting cylinder.

[0019] As a preferred technical solution of the present application, the unfolding assembly includes a driving column arranged on the jacking plate. The driving column is slidably arranged, and a second spring is arranged outside the driving column. Two ends of the second spring are respectively connected to the corresponding surfaces of the jacking plate and the exhaust plate.

[0020] As a preferred technical solution of the present application, a transmission ring is slidably arranged in the sliding groove. The end of the transmission ring is wedge-shaped, and the end of the driving column is wedge-shaped. The end of the driving column is adapted to the end of the transmission ring.

[0021] As a preferred technical solution of the present application, a third spring is arranged on the corresponding surface of the transmission ring and the sliding groove. An annular groove is arranged at the bottom of the transmission ring, and a fixing column is slidably arranged on the annular groove.

[0022] As a preferred technical solution of the present application, a synchronous ring is slidably arranged outside the telescopic column. An adaptation groove is arranged at the bottom of the feeding disk. The adaptation groove is adapted to the synchronous ring. The fixing column is arranged on the synchronous ring, and the fixing column is slidably arranged on the feeding disk.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In the solution of the present application:

[0025] 1. In order to solve the problem that bubbles will appear inside the molten plastic toy raw material in the prior art, the present application realizes the removal of bubbles inside the molten plastic toy raw material and discharges them outside the melting cylinder through the arranged feeding mechanism, defoaming mechanism and injection mechanism;

[0026] 2. By arranging the feeding mechanism, the rate of the plastic raw material entering the melting cylinder is adjusted, and the situation of uneven plasticization of the plastic raw material in the melting cylinder in the prior art is solved;

[0027] 3. By arranging the feeding mechanism, defoaming mechanism and injection mechanism, the process of injecting the molten plastic toy raw material into the mold is realized, and the process of injection by pressurization in the prior art is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the plastic toy shell injection molding device provided by the present application;

[0029] Figure 2 is a schematic internal structure diagram of the melting cylinder of the plastic toy shell injection molding device provided by the present application;

[0030] Figure 3 is a schematic structural diagram of the feeding mechanism of the plastic toy shell injection molding device provided by the present application;

[0031] Figure 4 Schematic cross-sectional view of the feeding tray of the injection molding device for the plastic toy shell provided by the present application;

[0032] Figure 5 Schematic internal structure view of the pushing ring of the injection molding device for the plastic toy shell provided by the present application;

[0033] Figure 6 For the injection molding device for the plastic toy shell provided by the present application Figure 5 Enlarged structure view of area A;

[0034] Figure 7 Schematic overall structure view of the arc block of the injection molding device for the plastic toy shell provided by the present application;

[0035] Figure 8 Schematic structure view of the defoaming mechanism of the injection molding device for the plastic toy shell provided by the present application.

[0036] Labels in the figure:

[0037] 1. Bracket; 101. Melting cylinder; 102. Feeding port; 103. Discharge nozzle;

[0038] 2. Feeding mechanism; 201. Feeding tray; 202. Hole; 203. Adjusting component; 2031. Motor; 2032. Telescopic column; 2033. Electric telescopic rod; 2034. Connecting plate; 2035. Spring 1; 204. Sealing component; 2041. Rubber ring; 2042. Flat part; 2043. Inclined part; 2044. Baffle;

[0039] 3. Defoaming mechanism; 301. Arc block; 302. Exhaust component; 3021. Exhaust plate; 3022. Pushing plate;

[0040] 4. Injection mechanism; 401. Pushing ring; 402. Sliding groove; 403. Expansion component; 4031. Driving column; 4032. Spring 2; 404. Transmission ring; 405. Spring 3; 406. Annular groove; 407. Fixed column; 408. Synchronous ring; 409. Fitting groove. Detailed implementation manners

[0041] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] As described in the background art, when the plastic toy raw material is heated and melted, bubbles will appear inside the molten plastic toy raw material, which will cause defects with pores on the surface of the plastic toy raw material, resulting in a low yield of plastic parts.

[0043] To solve this technical problem, the present invention provides an injection molding device for a plastic toy shell, which is applied to an injection molding machine.

[0044] Specifically, please refer to Figures 1-8 , the injection molding device for the plastic toy shell specifically includes: a bracket 1, a melting cylinder 101 provided on the bracket 1, a feed inlet 102 provided on the melting cylinder 101, and a discharge nozzle 103 provided at the bottom of the melting cylinder 101. It also includes: a feeding mechanism 2 provided in the melting cylinder 101, a defoaming mechanism 3 provided in the melting cylinder 101, and an injection mechanism 4 provided in the melting cylinder 101. The rate of the plastic raw material entering the melting cylinder 101 is controlled by the feeding mechanism 2, the bubbles inside the molten plastic raw material are removed by the defoaming mechanism 3, and the molten plastic raw material is injected into the mold by the injection mechanism 4;

[0045] The feeding mechanism 2 includes a feeding disk 201 provided in the melting cylinder 101, holes 202 provided on the feeding disk 201, an adjusting assembly 203 provided in the melting cylinder 101, and a blocking assembly 204 provided in the melting cylinder 101;

[0046] The defoaming mechanism 3 includes an arc-shaped block 301 provided in the melting cylinder 101 and an exhaust assembly 302 provided in the melting cylinder 101;

[0047] The injection mechanism 4 includes a pushing ring 401 provided in the melting cylinder 101 and an unfolding assembly 403 provided in the melting cylinder 101.

[0048] The injection molding device for the plastic toy shell provided by the present invention solves the problem that bubbles will appear inside the molten plastic toy raw material in the prior art. In this application, through the provided feeding mechanism 2, defoaming mechanism 3, and injection mechanism 4, the bubbles inside the molten plastic toy raw material are removed and discharged outside the melting cylinder 101;

[0049] Through the provided feeding mechanism 2, the rate of the plastic raw material entering the melting cylinder 101 is adjusted, solving the problem of uneven plasticization of the plastic raw material in the melting cylinder 101 in the prior art;

[0050] Through the provided feeding mechanism 2, defoaming mechanism 3, and injection mechanism 4, the process of injecting the molten plastic toy raw material into the mold is realized, reducing the process of injection by pressurization in the prior art.

[0051] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0052] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0053] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0054] Example 1, please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 8 A plastic toy shell injection molding device, the adjusting assembly 203 of which includes a motor 2031 arranged on the melting cylinder 101. The output end of the motor 2031 is provided with a telescopic column 2032. The end of the telescopic column 2032 is provided with an electric telescopic rod 2033. A plurality of connecting plates 2034 are arranged on the electric telescopic rod 2033. The plurality of connecting plates 2034 are spirally distributed on the electric telescopic rod 2033. A plurality of arc-shaped blocks 301 are provided. The plurality of arc-shaped blocks 301 are respectively slidably arranged on the connecting plates 2034. A first spring 2035 is connected to the corresponding surfaces of the connecting plates 2034 and the arc-shaped blocks 301. When the electric telescopic rod 2033 contracts and drives the plurality of connecting plates 2034 and the arc-shaped blocks 301 to move upward synchronously, the arc-shaped blocks 301 block the holes 202, and the rate of plastic raw material entering the interior of the melting cylinder 101 is controlled by blocking the area of the holes 202, preventing the plastic raw material from being unevenly plasticized when heated in the melting cylinder 101 and affecting the quality of the final model;

[0055] Furthermore, the blocking assembly 204 includes a rubber ring 2041 arranged on the feeding plate 201. The ends of the plurality of arc-shaped blocks 301 are all provided with flat portions 2042. The sides of the plurality of arc-shaped blocks 301 are all provided with inclined portions 2043. A baffle 2044 is arranged on each of the plurality of arc-shaped blocks 301. When the flat portion 2042 is completely engaged with the hole 202, the flat portion 2042 blocks the hole 202, so that the plastic raw material cannot enter the interior of the melting cylinder 101;

[0056] Furthermore, the rubber ring 2041 and the feeding tray 201 are not in contact with the melting cylinder 101. The flat part 2042 is adapted to the hole 202. One side of the inclined part 2043 is wedge-shaped, and the other side of the inclined part 2043 is curved. When the electric telescopic rod 2033 contracts, the multiple arc-shaped blocks 301 contract synchronously. The right side of the inclined part 2043 is wedge-shaped, and the left side of the inclined part 2043 is curved. As Figure 7 shown, when the electric telescopic rod 2033 expands, the left side of the inclined part 2043 with a curved shape combines into a component similar to a flood dragon. The telescopic column 2032 and the electric telescopic rod 2033 are driven by the motor 2031 to rotate synchronously to stir the plastic raw material in a molten state and remove the air bubbles inside the plastic raw material in a molten state. At this time, the baffle 2044 is used to prevent the plastic raw material from dispersing on the inner wall of the melting cylinder 101 when the arc-shaped block 301 rotates. Through the blocking of the baffle 2044, the inclined part 2043 on the arc-shaped block 301 evenly turns the plastic raw material in a molten state upward, improving the efficiency of removing the air bubbles inside the plastic raw material in a molten state;

[0057] The rubber ring 2041 and the feeding tray 201 are not in contact with the melting cylinder 101 in the initial state, which can make the space formed between the upper end of the feeding tray 201 and the melting cylinder 101 and the space formed between the lower end of the feeding tray 201 and the melting cylinder 101 in a connected state. In this way, when there is a small amount of plastic raw material left at the end, it will not cause the situation that the plastic raw material cannot enter the hole 202 due to the different air pressures at the upper and lower ends of the feeding tray 201;

[0058] When the electric telescopic rod 2033 contracts, the multiple baffles 2044 on the arc-shaped block 301 combine into a disc. At the same time, the right side of the inclined part 2043 is wedge-shaped. When the right side of the inclined part 2043 contacts the hole 202, the hole 202 is slowly blocked. At the same time, the hole 202 squeezes the inclined part 2043, causing the whole arc-shaped block 301 to slide outward along the direction of the connecting plate 2034, so that the baffle 2044 squeezes the rubber ring 2041. The simultaneous expansion of the multiple baffles 2044 drives the rubber ring 2041 to expand outward and fit completely with the inside of the melting cylinder 101. At the same time, the flat part 2042 on the arc-shaped block 301 blocks the hole 202, so that a component similar to a piston is formed by the cooperation between the arc-shaped block 301, the feeding tray 201 and the rubber ring 2041;

[0059] Further, the exhaust assembly 302 includes exhaust plates 3021 disposed outside the pushing ring 401. There are multiple exhaust plates 3021, and the multiple exhaust plates 3021 are arranged in a circumferential array on the pushing ring 401. The pushing ring 401 is disposed on the telescopic column 2032. Moving plates 3022 are slidably disposed on the multiple exhaust plates 3021 respectively. When the motor 2031 rotates, the motor 2031 drives the pushing ring 401 to rotate synchronously. The pushing ring 401 drives the exhaust plates 3021 and the moving plates 3022 to rotate synchronously. Through the cooperation of the exhaust plates 3021 and the moving plates 3022, the bubbles generated by the plastic raw material in the molten state are discharged from the feed port 102.

[0060] By controlling the blocking area of the hole 202 by the upper plane portion 2042 of the arc-shaped block 301, it can be used to control the feeding rate of the plastic raw material and prevent the plastic raw material from being unevenly plasticized. At the same time, through the expansion of the electric telescopic rod 2033, the arc-shaped blocks 301 are driven to form a component similar to a dragon to remove the bubbles inside the plastic raw material in the molten state.

[0061] Embodiment 2 further optimizes the plastic toy shell injection molding device provided in Embodiment 1. Specifically, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 shown, the injection mechanism 4 further includes a sliding groove 402 disposed inside the pushing ring 401. The end of the moving plate 3022 is provided with a thread, and the end of the moving plate 3022 is threadedly connected to the inner wall of the melting cylinder 101. In the initial state, the moving plate 3022 is not in contact with the inner wall of the melting cylinder 101. The inner wall of the melting cylinder 101 is provided with a thread adapted to the moving plate 3022. When the moving plate 3022 expands, the moving plate 3022 is threadedly connected to the inner wall of the melting cylinder 101. Thus, when the moving plate 3022 rotates, it can be displaced inside the melting cylinder 101.

[0062] Further, the expansion assembly 403 includes a driving column 4031 disposed on the moving plate 3022. A second spring 4032 is slidably disposed outside the driving column 4031. The two ends of the second spring 4032 are respectively connected to the corresponding surfaces of the moving plate 3022 and the exhaust plate 3021. The second spring 4032 is used to drive the moving plate 3022 to reset.

[0063] Further, a transmission ring 404 is slidably arranged in the sliding groove 402. The end of the transmission ring 404 is inclined, and the end of the driving column 4031 is wedge-shaped. The end of the driving column 4031 is adapted to the end of the transmission ring 404. When the end of the transmission ring 404 presses against the end of the driving column 4031, the driving column 4031 is pressed and slides. The sliding driving column 4031 drives the ejector plate 3022 to unfold and be threadedly connected to the melting cylinder 101;

[0064] Further, a third spring 405 is arranged on the corresponding surface of the transmission ring 404 and the sliding groove 402. An annular groove 406 is arranged at the bottom of the transmission ring 404. A fixing column 407 is slidably arranged on the annular groove 406. The third spring 405 is used to drive the transmission ring 404 to reset;

[0065] Further, a synchronous ring 408 is slidably arranged outside the telescopic column 2032. An adaptor groove 409 is arranged at the bottom of the feeding tray 201. The adaptor groove 409 is adapted to the synchronous ring 408. The fixing column 407 is arranged on the synchronous ring 408. The fixing column 407 is slidably arranged on the feeding tray 201. When the electric telescopic rod 2033 resets, the right side of the inclined portion 2043 on the arc-shaped block 301 presses against the synchronous ring 408, causing the synchronous ring 408 to move upward. The synchronous ring 408 drives the fixing column 407 to slide. The fixing column 407 presses against the transmission ring 404. By pressing the transmission ring 404 against the driving column 4031, the driving column 4031 drives the ejector plate 3022 to unfold and be threadedly connected to the melting cylinder 101. At the same time, a component similar to a piston is formed by the cooperation among the arc-shaped block 301, the feeding tray 201, and the rubber ring 2041. By the rotation of the motor 2031, the ejector plate 3022 displaces inside the melting cylinder 101 and synchronously drives the output end of the telescopic column 2032 to displace synchronously, so that the component similar to a piston formed by the cooperation among the arc-shaped block 301, the feeding tray 201, and the rubber ring 2041 discharges the molten plastic raw material from the discharge nozzle 103, realizing an injection process.

[0066] The using process of the plastic toy shell injection molding device provided by the present invention is as follows:

[0067] When the electric telescopic rod 2033 extends, the left side of the inclined part 2043 is combined in a curved shape to form a component similar to a flood dragon. The telescopic column 2032 is driven by the motor 2031 to rotate synchronously with the electric telescopic rod 2033, turning the plastic raw material in a molten state to remove the air bubbles inside the plastic raw material in a molten state. At this time, the baffle 2044 is used to prevent the plastic raw material from dispersing on the inner wall of the melting cylinder 101 when the arc-shaped block 301 rotates. Through the blocking of the baffle 2044, the inclined part 2043 on the arc-shaped block 301 evenly turns the plastic raw material in a molten state upward, improving the efficiency of removing the air bubbles inside the plastic raw material in a molten state. At the same time, the pushing ring 401 drives the exhaust plate 3021 and the jacking plate 3022 to rotate synchronously. Through the cooperation of the exhaust plate 3021 and the jacking plate 3022, the air bubbles generated by the plastic raw material in a molten state are discharged from the feed port 102;

[0068] When the electric telescopic rod 2033 contracts, the multiple baffles 2044 on the arc-shaped block 301 are combined into a disc. At the same time, the right side of the inclined part 2043 is wedge-shaped. When the right side of the inclined part 2043 contacts the hole 202, the hole 202 is slowly blocked. At the same time, the hole 202 squeezes the inclined part 2043, causing the entire arc-shaped block 301 to slide outward along the direction of the connecting plate 2034, so that the baffle 2044 squeezes the rubber ring 2041. The simultaneous expansion of the multiple baffles 2044 drives the rubber ring 2041 to expand outward and fit completely with the inside of the melting cylinder 101. At the same time, the flat part 2042 on the arc-shaped block 301 blocks the hole 202. Thus, a component similar to a piston is formed by the cooperation among the arc-shaped block 301, the feed tray 201, and the rubber ring 2041. At the same time, the right side of the inclined part 2043 on the arc-shaped block 301 squeezes the synchronous ring 408, causing the synchronous ring 408 to displace upward. The synchronous ring 408 drives the fixed column 407 to slide. The fixed column 407 squeezes the transmission ring 404. Through the transmission ring 404, the driving column 4031 is squeezed. The driving column 4031 drives the jacking plate 3022 to expand and be threadedly connected to the melting cylinder 101. A component similar to a piston is formed by the cooperation among the arc-shaped block 301, the feed tray 201, and the rubber ring 2041. Through the rotation of the motor 2031, the jacking plate 3022 displaces inside the melting cylinder 101 and synchronously drives the output end of the telescopic column 2032 to displace synchronously, so that a component similar to a piston formed by the cooperation among the arc-shaped block 301, the feed tray 201, and the rubber ring 2041 discharges the plastic raw material in a molten state from the discharge nozzle 103 and realizes injection.

[0069] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are shown in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure made by using the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, shall be similarly within the scope of the patent protection of the present invention.

Claims

1. A plastic toy shell injection molding device, comprising a support (1), a melting barrel (101) arranged on the support (1), a feed port (102) arranged on the melting barrel (101), and a discharge nozzle (103) arranged at the bottom of the melting barrel (101), characterized in that: Also includes: A feeding mechanism (2) disposed in the melting cylinder (101), a degassing mechanism (3) disposed in the melting cylinder (101), and an injection mechanism (4) disposed in the melting cylinder (101); The feeding mechanism (2) comprises a feeding disc (201) arranged in the melting barrel (101), a hole (202) arranged on the feeding disc (201), an adjusting component (203) arranged in the melting barrel (101), and a blocking component (204) arranged in the melting barrel (101), wherein the adjusting component (203) comprises a motor (2031) arranged on the melting barrel (101), and a telescopic column (2032) is arranged at the output end of the motor (2031). An electric telescopic rod (2033) is provided at the end of the retractable column (2032), a plurality of connecting plates (2034) are provided on the electric telescopic rod (2033), the plurality of connecting plates (2034) are distributed on the electric telescopic rod (2033) in a spiral shape, a plurality of arc blocks (301) are provided, the plurality of arc blocks (301) are respectively slidably arranged on the connecting plates (2034), and a spring 1 (2035) is connected to the corresponding surfaces of the connecting plates (2034) and the arc blocks (301); The degassing mechanism (3) comprises an arc-shaped block (301) arranged in the melting barrel (101), an exhaust assembly (302) arranged in the melting barrel (101), the exhaust assembly (302) comprising an exhaust plate (3021) arranged outside the pushing ring (401), a plurality of exhaust plates (3021) being provided, the plurality of exhaust plates (3021) being arranged in a circular array on the pushing ring (401), the pushing ring (401) being provided on a telescopic column (2032), and push plates (3022) being slidably provided on the plurality of exhaust plates (3021); The injection mechanism (4) comprises a push ring (401) arranged in the melting cylinder (101), and an expansion assembly (403) arranged in the melting cylinder (101). The injection mechanism (4) also comprises a sliding groove (402) arranged in the push ring (401). The end of the push plate (3022) is provided with a thread, and the end of the push plate (3022) is connected to the inner wall of the melting cylinder (101) by means of a thread.

2. A plastic toy shell injection molding device according to claim 1, characterized in that: The blocking assembly (204) comprises a rubber ring (2041) arranged on the feed tray (201), the ends of the plurality of arc-shaped blocks (301) are each provided with a flat surface portion (2042), the sides of the plurality of arc-shaped blocks (301) are each provided with an inclined portion (2043), and the plurality of arc-shaped blocks (301) are each provided with a baffle (2044).

3. A plastic toy shell injection molding device according to claim 2, characterized in that: The rubber ring (2041) and the feed disc (201) are not in contact with the melting cylinder (101); the plane portion (2042) and the hole (202) are adapted to each other; one side of the inclined portion (2043) is wedge-shaped; and the other side of the inclined portion (2043) is curved.

4. A plastic toy shell injection molding device according to claim 3, characterized in that: The unfolding assembly (403) comprises a driving column (4031) arranged on the pushing plate (3022), the driving column (4031) being slidably arranged, a second spring (4032) being arranged outside the driving column (4031), and two ends of the second spring (4032) being respectively connected to corresponding surfaces of the pushing plate (3022) and the exhaust plate (3021).

5. A plastic toy shell injection molding device according to claim 4, characterized in that: A transmission ring (404) is slidably disposed in the sliding groove (402), the end of the transmission ring (404) is wedge-shaped, the end of the driving column (4031) is wedge-shaped, and the end of the driving column (4031) and the end of the transmission ring (404) are mutually adapted.

6. A plastic toy shell injection molding device according to claim 5, characterized in that: A spring three (405) is arranged on the corresponding surfaces of the transmission ring (404) and the sliding groove (402), an annular groove (406) is arranged at the bottom of the transmission ring (404), and a fixing column (407) is slidably arranged on the annular groove (406).

7. A plastic toy shell injection molding device according to claim 6, characterized in that: A synchronization ring (408) is slidably arranged on the outer side of the telescopic column (2032), an adaption groove (409) is arranged at the bottom of the feed tray (201), the adaption groove (409) and the synchronization ring (408) are mutually adapted, the fixed column (407) is arranged on the synchronization ring (408), and the fixed column (407) is slidably arranged on the feed tray (201).

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