Plastic toy shell injection molding device

Abstract

The invention provides a plastic toy shell injection molding device, and relates to the field of injection molding machines, the plastic toy shell injection molding device comprises a support, a melting cylinder arranged on the support, a feeding port formed in the melting cylinder, a discharging nozzle formed in the bottom of the melting cylinder, a feeding mechanism arranged in the melting cylinder, and a discharging mechanism arranged in the melting cylinder, the defoaming mechanism is arranged in the melting cylinder; the injection mechanism is arranged in the melting cylinder; by arranging the feeding mechanism, the defoaming mechanism and the injection mechanism, bubbles in a plastic toy raw material in a molten state are removed and discharged out of the melting cylinder; by arranging the feeding mechanism, the speed of the plastic raw materials entering the melting cylinder is adjusted, and the problem that in the prior art, the plastic raw materials are non-uniformly plasticized in the melting cylinder is solved; by arranging the feeding mechanism, the defoaming mechanism and the injection mechanism, the process of injecting the plastic toy raw materials in the molten state into the mold is achieved, and the process of achieving injection through pressurization in the prior art is omitted.

Description

Technical Field

[0001] The invention relates to the field of injection molding machines, in particular to an injection molding device for a plastic toy shell. Background Art

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

[0003] When processing the plastic toy shell, when the plastic toy raw material is heated and melted, bubbles will appear inside the molten plastic toy raw material. When the next step of injecting it into the mold is carried out, if the bubbles are not contained inside the plastic toy raw material, but exposed on the surface of the plastic toy raw material, it will cause defects such as pores to be formed on the surface of the plastic toy raw material, resulting in a low yield 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) discloses in its specification: Injection molding machine is also known as injection molding machine or injection machine. It is the main molding equipment for making plastic products of various shapes from thermoplastics or thermosetting plastics using plastic molding molds. 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 make it ejected and fill the mold cavity. At present, most injection molding machines are used. Because bubbles are often mixed in the molten plastic under actual conditions, the molten plastic is directly injected into the closed mold cavity. When the mold is removed, if the bubbles are not contained inside the plastic part, but exposed on the surface of the plastic, the plastic surface will form defects with pores, resulting in a low yield of the plastic part, which cannot meet people's use needs.

[0005] The above patents can prove the defects of the existing technology.

[0006] Therefore, we make improvements to this and propose a plastic toy shell injection molding device. Summary of the invention

[0007] The purpose of the present invention is to address the problem that when the existing plastic toy raw materials are heated and melted, bubbles will appear inside the molten plastic toy raw materials, which will cause defects such as pores to be formed on the surface of the plastic toy raw materials, resulting in a low yield of plastic parts.

[0008] In order to achieve the above-mentioned purpose of the invention, the present invention provides a plastic toy shell injection molding device to improve the above-mentioned problem.

[0009] The specific application is as follows: The invention comprises a support, a melting barrel arranged on the support, a feed port arranged on the melting barrel and a discharge nozzle arranged at the bottom of the melting barrel, and further comprises: a feed mechanism arranged in the melting barrel, a degassing mechanism arranged in the melting barrel, and an injection mechanism arranged in the melting barrel; The feeding mechanism includes a feeding disc arranged in the melting cylinder, a hole arranged on the feeding disc, an adjusting component arranged in the melting cylinder, and a blocking component arranged in the melting cylinder; The degassing mechanism includes an arc-shaped block arranged in the melting cylinder and an exhaust assembly arranged in the melting cylinder; The injection mechanism comprises a pushing ring arranged in the melting cylinder and a spreading assembly arranged in the melting cylinder.

[0010] As a preferred technical solution of the present application, the adjusting component includes a motor arranged on the melting cylinder, a telescopic column is arranged at the output end of the motor, an electric telescopic rod is arranged at the end of the telescopic column, a plurality of connecting plates are arranged on the electric telescopic rod, and the plurality of connecting plates are spirally distributed on the electric telescopic rod, a plurality of arc blocks are arranged, and the plurality of arc blocks are respectively slidably arranged on the connecting plates, and a spring is connected to the corresponding surfaces of the connecting plates and the arc blocks.

[0011] As a preferred technical solution of the present application, the sealing assembly includes a rubber ring arranged on the feed tray, the ends of multiple arc blocks are provided with flat portions, the sides of multiple arc blocks are provided with inclined portions, and baffles are provided on multiple arc blocks.

[0012] As a preferred technical solution of the present application, the rubber ring and the feed plate are not in contact with the melting cylinder, the planar portion and the hole are adapted to each other, one side of the inclined portion is wedge-shaped, and the other side of the inclined portion is curved.

[0013] As a preferred technical solution of the present application, the exhaust assembly includes an exhaust plate arranged on the outside of the push ring, and there are multiple exhaust plates. The multiple exhaust plates are arranged in a circular array on the push ring, and the push ring is set on the telescopic column, and the multiple exhaust plates are respectively slidably provided with push plates.

[0014] As a preferred technical solution of the present application, the injection mechanism further includes a sliding groove arranged in the push ring, the end of the ejector plate is provided with a thread, and the end of the ejector plate is connected to the inner wall of the melting cylinder through a thread.

[0015] As a preferred technical solution of the present application, the unfolding assembly includes a driving column arranged on the pushing plate, the driving column is slidably arranged on the outside of the driving column and a spring 2 is arranged, and the two ends of the spring 2 are respectively connected to the corresponding surfaces of the pushing plate and the exhaust plate.

[0016] 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, the end of the driving column is wedge-shaped, and the end of the driving column and the end of the transmission ring are adapted to each other.

[0017] As a preferred technical solution of the present application, a spring three 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.

[0018] As a preferred technical solution of the present application, a synchronization ring is slidably arranged on the outer side of the telescopic column, an adaptation groove is arranged at the bottom of the feed tray, the adaptation groove and the synchronization ring are mutually adapted, the fixed column is arranged on the synchronization ring, and the fixed column is slidably arranged on the feed tray.

[0019] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. In order to solve the problem of bubbles appearing inside the molten plastic toy raw materials in the prior art, the present application realizes the removal of bubbles inside the molten plastic toy raw materials and discharges them out of the melting cylinder by setting a feeding mechanism, a degassing mechanism and an injection mechanism; 2. The feeding mechanism is set to adjust the rate at which the plastic raw material enters the melting barrel, solving the problem of uneven plasticization of the plastic raw material in the melting barrel in the prior art; 3. The feeding mechanism, degassing mechanism and injection mechanism are provided to realize the process of injecting the molten plastic toy raw material into the mold, thereby reducing the injection process by pressurization in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the plastic toy shell injection molding device provided in this application; Figure 2 A schematic diagram of the internal structure of the melting cylinder of the plastic toy shell injection molding device provided in this application; Figure 3 A schematic diagram of the structure of a feeding mechanism of a plastic toy shell injection molding device provided in the present application; Figure 4 A schematic cross-sectional view of the feed plate of the plastic toy shell injection molding device provided in the present application; Figure 5 A schematic diagram of the internal structure of a push ring of a plastic toy shell injection molding device provided in the present application; Figure 6 Plastic toy shell injection molding device provided in this application Figure 5 Schematic diagram of the enlarged structure of the middle A area; Figure 7A schematic diagram of the overall structure of the arc block of the plastic toy shell injection molding device provided in this application; Figure 8 This is a schematic diagram of the degassing mechanism structure of the plastic toy shell injection molding device provided in this application.

[0021] Indicated in the figure: 1. Bracket; 101. Melting barrel; 102. Feed inlet; 103. Discharge nozzle; 2. Feeding mechanism; 201. Feeding tray; 202. Hole; 203. Adjusting assembly; 2031. Motor; 2032. Telescopic column; 2033. Electric telescopic rod; 2034. Connecting plate; 2035. Spring 1; 204. Blocking assembly; 2041. Rubber ring; 2042. Plane portion; 2043. Inclined portion; 2044. Baffle; 3. Degassing mechanism; 301. Arc block; 302. Exhaust assembly; 3021. Exhaust plate; 3022. Push plate; 4. Injection mechanism; 401. Push ring; 402. Sliding groove; 403. Expanding assembly; 4031. Driving column; 4032. Spring 2; 404. Transmission ring; 405. Spring 3; 406. Annular groove; 407. Fixed column; 408. Synchronous ring; 409. Adapter groove. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] As described in the background art, when plastic toy materials are heated and melted, bubbles will appear inside the molten plastic toy materials, which will cause defects such as pores to be formed on the surface of the plastic toy materials, resulting in a low yield rate of plastic parts.

[0024] In order to solve this technical problem, the present invention provides a plastic toy shell injection molding device, which is applied to an injection molding machine.

[0025] Specifically, please refer to Figure 1-Figure 8The plastic toy shell injection molding device specifically includes: a bracket 1, a melting barrel 101 arranged on the bracket 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, and also includes: a feeding mechanism 2 arranged in the melting barrel 101, a degassing mechanism 3 arranged in the melting barrel 101, and an injection mechanism 4 arranged in the melting barrel 101, the feeding mechanism 2 controls the rate at which the plastic raw material enters the melting barrel 101, the degassing mechanism 3 removes bubbles inside the plastic raw material in a molten state, and the injection mechanism 4 injects the plastic raw material in a molten state into the mold; The feeding mechanism 2 includes a feeding disc 201 disposed in the melting cylinder 101, a hole 202 disposed on the feeding disc 201, an adjusting component 203 disposed in the melting cylinder 101, and a blocking component 204 disposed in the melting cylinder 101; The degassing mechanism 3 includes an arc block 301 disposed in the melting cylinder 101 and an exhaust assembly 302 disposed in the melting cylinder 101; The injection mechanism 4 includes a push ring 401 disposed in the melting cylinder 101 and an expansion assembly 403 disposed in the melting cylinder 101 .

[0026] The plastic toy shell injection molding device provided by the present invention solves the problem of bubbles appearing 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 out of the melting cylinder 101 by providing a feeding mechanism 2, a degassing mechanism 3 and an injection mechanism 4. The feeding mechanism 2 is provided to adjust the rate at which the plastic raw material enters the melting barrel 101, thereby solving the problem of uneven plasticization of the plastic raw material in the melting barrel 101 in the prior art. By providing the feeding mechanism 2, the degassing mechanism 3 and the injection mechanism 4, the process of injecting the molten plastic toy raw material into the mold is realized, thereby reducing the process of injecting by pressurization in the prior art.

[0027] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] 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, wherein the adjusting component 203 includes a motor 2031 arranged on a melting barrel 101, a telescopic column 2032 is arranged at the output end of the motor 2031, an electric telescopic rod 2033 is arranged at the end of the telescopic column 2032, a plurality of connecting plates 2034 are arranged on the electric telescopic rod 2033, and the plurality of connecting plates 2034 are spirally distributed on the electric telescopic rod 2033, a plurality of arc blocks 301 are arranged, and the plurality of arc blocks 301 are respectively slidably arranged The connecting plate 2034 is arranged on the connecting plate 2034. The corresponding surfaces of the connecting plate 2034 and the arc block 301 are connected with a spring 2035. When the electric telescopic rod 2033 contracts and drives the connecting plates 2034 and the arc block 301 to move upward synchronously, the arc block 301 blocks the hole 202. By blocking the area of ​​the hole 202, the speed at which the plastic raw material enters the melting cylinder 101 is controlled, so as to prevent the plastic raw material from being unevenly plasticized when the melting cylinder 101 is heated, thereby affecting the quality of the final model. Further, the blocking assembly 204 includes a rubber ring 2041 disposed on the feed tray 201, a plane portion 2042 is disposed at the end of each of the plurality of arc blocks 301, an inclined portion 2043 is disposed at the side of each of the plurality of arc blocks 301, and a baffle 2044 is disposed on each of the plurality of arc blocks 301. When the plane portion 2042 is fully engaged with the hole 202, the plane portion 2042 blocks the hole 202, so that the plastic raw material cannot enter the interior of the melting barrel 101; Furthermore, the rubber ring 2041 and the feed tray 201 are not in contact with the melting cylinder 101, the flat 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. When the electric telescopic rod 2033 is contracted, the multiple arc blocks 301 are contracted synchronously, the right side of the inclined portion 2043 is wedge-shaped, and the left side of the inclined portion 2043 is curved. Figure 7 As shown, when the electric telescopic rod 2033 is unfolded, the left side of the inclined portion 2043 is combined into a component similar to a dragon in a curved shape, and the telescopic column 2032 is driven by the motor 2031 to rotate synchronously with the electric telescopic rod 2033 to turn over the plastic raw material in a molten state and remove the 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 being dispersed on the inner wall of the melting cylinder 101 when the arc block 301 rotates. Through the obstruction of the baffle 2044, the inclined portion 2043 on the arc block 301 evenly turns the plastic raw material in a molten state upward, thereby improving the efficiency of removing the bubbles inside the plastic raw material in a molten state. The rubber ring 2041 and the feed tray 201 are not in contact with the melting cylinder 101 in the initial state, so that the space formed by the upper end of the feed tray 201 and the melting cylinder 101 and the space formed by the lower end of the feed tray 201 and the melting cylinder 101 are in a connected state, so that the last small amount of plastic raw material will not be unable to enter the hole 202 due to the difference in air pressure between the upper and lower ends of the feed tray 201; When the electric telescopic rod 2033 is retracted, the multiple baffles 2044 on the arc block 301 are combined into a disc, and the right side of the inclined portion 2043 is wedge-shaped. When the right side of the inclined portion 2043 contacts the hole 202, the hole 202 is slowly blocked, and the hole 202 squeezes the inclined portion 2043, so that the arc block 301 as a whole slides outward along the direction of the connecting plate 2034, so that the baffle 2044 squeezes the rubber ring 2041, and the multiple baffles 2044 expand at the same time, driving the rubber ring 2041 to expand outward and completely fit with the inside of the melting cylinder 101, and the plane portion 2042 on the arc block 301 blocks the hole 202, so that the arc block 301, the feed tray 201 and the rubber ring 2041 cooperate to form a piston-like component; Further, the exhaust assembly 302 includes an exhaust plate 3021 arranged outside the push ring 401, and a plurality of exhaust plates 3021 are provided, and the plurality of exhaust plates 3021 are arranged in a circular array on the push ring 401, and the push ring 401 is arranged on the telescopic column 2032, and the plurality of exhaust plates 3021 are respectively slidably provided with push plates 3022, and when the motor 2031 rotates, the motor 2031 drives the push ring 401 to rotate synchronously, and the push ring 401 drives the exhaust plate 3021 and the push plate 3022 to rotate synchronously, and through the cooperation of the exhaust plate 3021 and the push plate 3022, the bubbles generated by the plastic raw material in the molten state are discharged from the feed port 102; By controlling the blocking area of ​​the hole 202 by the flat surface 2042 on the arc block 301, the feeding rate of the plastic raw material can be controlled to prevent uneven plasticization of the plastic raw material. At the same time, by expanding the electric telescopic rod 2033, the arc blocks 301 are driven to combine into a dragon-like component to remove bubbles inside the plastic raw material in a molten state.

[0031] Embodiment 2 further optimizes the plastic toy shell injection molding device provided in Embodiment 1. Specifically, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the injection mechanism 4 further includes a sliding groove 402 arranged in the push ring 401, a thread is provided at the end of the push plate 3022, and the end of the push plate 3022 is connected to the inner wall of the melting cylinder 101 through a thread. The push plate 3022 does not contact the melting cylinder 101 in the initial state, and the inner wall of the melting cylinder 101 is provided with a thread adapted to the push plate 3022. When the push plate 3022 is unfolded, the push plate 3022 is connected to the inner wall of the melting cylinder 101 through a thread, so that the push plate 3022 can be displaced in the melting cylinder 101 when rotating; Further, the unfolding assembly 403 includes a driving column 4031 disposed on the push plate 3022, the driving column 4031 is slidably disposed, a second spring 4032 is disposed outside the driving column 4031, and both ends of the second spring 4032 are respectively connected to the corresponding surfaces of the push plate 3022 and the exhaust plate 3021, and the second spring 4032 is used to drive the push plate 3022 to reset; Furthermore, a transmission ring 404 is slidably disposed in the sliding groove 402, the end of the transmission ring 404 is inclined, the end of the driving column 4031 is wedge-shaped, the end of the driving column 4031 and the end of the transmission ring 404 are adapted to each other, when the end of the transmission ring 404 squeezes the end of the driving column 4031, the driving column 4031 is squeezed and slides, and the sliding driving column 4031 drives the ejector plate 3022 to expand and be threadedly connected with the melting cylinder 101; Furthermore, a spring 3 405 is provided on the corresponding surface of the transmission ring 404 and the sliding groove 402, an annular groove 406 is provided at the bottom of the transmission ring 404, a fixing column 407 is slidably provided on the annular groove 406, and the spring 3 405 is used to drive the transmission ring 404 to reset; Furthermore, a synchronous ring 408 is slidably arranged on the outer side of the telescopic column 2032, and an adapting groove 409 is arranged at the bottom of the feed tray 201, and the adapting groove 409 and the synchronous ring 408 are adapted to each other, and the fixed column 407 is arranged on the synchronous ring 408, and the fixed column 407 is slidably arranged on the feed tray 201. When the electric telescopic rod 2033 is reset, the inclined portion 2043 on the arc block 301 squeezes the synchronous ring 408 on the right side, so that the synchronous ring 408 moves upward, and the synchronous ring 408 drives the fixed column 407 to slide, and the fixed column 407 squeezes the transmission ring 404, and the transmission ring 404 squeezes the drive The column 4031 drives the ejector plate 3022 to expand and be threadedly connected to the melting cylinder 101 through the driving column 4031. At the same time, the arc block 301, the feed disc 201 and the rubber ring 2041 cooperate to form a piston-like component. Through the rotation of the motor 2031, the ejector plate 3022 moves along the melting cylinder 101, and synchronously drives the output end of the telescopic column 2032 to move synchronously, so that the arc block 301, the feed disc 201 and the rubber ring 2041 cooperate to form a piston-like component to discharge the plastic raw material in a molten state from the discharge nozzle 103, thereby realizing an injection process.

[0032] The use process of the plastic toy shell injection molding device provided by the present invention is as follows: When the electric telescopic rod 2033 is unfolded, the left side of the inclined portion 2043 is combined into a component similar to a dragon in a curved shape, and the telescopic column 2032 is driven by the motor 2031 to rotate synchronously with the electric telescopic rod 2033 to turn over the plastic raw material in a molten state and remove the 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 being dispersed on the inner wall of the melting cylinder 101 when the arc block 301 is rotating. Through the obstruction of the baffle 2044, the inclined portion 2043 on the arc block 301 evenly turns the plastic raw material in a molten state upward, thereby improving the efficiency of removing the bubbles inside the plastic raw material in a molten state. At the same time, the push ring 401 drives the exhaust plate 3021 and the ejector plate 3022 to rotate synchronously. Through the cooperation of the exhaust plate 3021 and the ejector plate 3022, the bubbles generated by the plastic raw material in a molten state are discharged from the feed port 102; When the electric telescopic rod 2033 contracts, the multiple baffles 2044 on the arc block 301 are combined into a disc, and the right side of the inclined portion 2043 is wedge-shaped. When the right side of the inclined portion 2043 contacts the hole 202, the hole 202 is slowly blocked. At the same time, the hole 202 squeezes the inclined portion 2043, so that the arc block 301 as a whole slides outward along the direction of the connecting plate 2034, so that the baffle 2044 squeezes the rubber ring 2041. The multiple baffles 2044 expand at the same time, driving the rubber ring 2041 to expand outward and completely fit the inside of the melting cylinder 101. At the same time, the flat portion 2042 on the arc block 301 blocks the hole 202, so that the arc block 301, the feed tray 201 and the rubber ring 2041 cooperate to form a piston-like component. At the same time, the arc block 30 The inclined portion 2043 on the right side of the motor 2031 squeezes the synchronous ring 408, so that the synchronous ring 408 moves upward, the synchronous ring 408 drives the fixed column 407 to slide, the fixed column 407 squeezes the transmission ring 404, and the driving column 4031 is squeezed through the transmission ring 404. The driving column 4031 drives the ejector plate 3022 to expand and be threadedly connected with the melting cylinder 101, and the arc block 301, the feed disc 201 and the rubber ring 2041 cooperate to form a piston-like component. Through the rotation of the motor 2031, the ejector plate 3022 moves along the melting cylinder 101, and synchronously drives the output end of the telescopic column 2032 to synchronously move, so that the arc block 301, the feed disc 201 and the rubber ring 2041 cooperate to form a piston-like component to discharge the plastic raw material in a molten state from the discharge nozzle 103 and realize injection.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they 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 disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of 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 cylinder (101), a hole (202) arranged on the feeding disc (201), an adjusting component (203) arranged in the melting cylinder (101), and a blocking component (204) arranged in the melting cylinder (101); The degassing mechanism (3) comprises an arc-shaped block (301) arranged in the melting cylinder (101), and an exhaust assembly (302) arranged in the melting cylinder (101); The injection mechanism (4) comprises a pushing ring (401) arranged in the melting cylinder (101) and an expansion assembly (403) arranged in the melting cylinder (101).

2. A plastic toy shell injection molding device according to claim 1, characterized in that: The adjustment component (203) comprises a motor (2031) arranged on the melting cylinder (101); a telescopic column (2032) is arranged at the output end of the motor (2031); an electric telescopic rod (2033) is arranged at the end of the telescopic column (2032); 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 blocks (301) are arranged; 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).

3. A plastic toy shell injection molding device according to claim 2, 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).

4. A plastic toy shell injection molding device according to claim 3, 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.

5. A plastic toy shell injection molding device according to claim 4, characterized in that: The exhaust assembly (302) comprises an exhaust plate (3021) arranged outside the push ring (401), and a plurality of the exhaust plates (3021) are provided. The plurality of exhaust plates (3021) are arranged in a circular array on the push ring (401), and the push ring (401) is provided on a telescopic column (2032). Push plates (3022) are slidably provided on the plurality of exhaust plates (3021), respectively.

6. A plastic toy shell injection molding device according to claim 5, characterized in that: The injection mechanism (4) further comprises a sliding groove (402) arranged in the pushing ring (401); a thread is provided at the end of the push plate (3022); and the end of the push plate (3022) is connected to the inner wall of the melting cylinder (101) via a thread.

7. A plastic toy shell injection molding device according to claim 6, 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).

8. A plastic toy shell injection molding device according to claim 7, 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.

9. A plastic toy shell injection molding device according to claim 8, 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).

10. A plastic toy shell injection molding device according to claim 9, 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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