Injection molding device for toy shell production and molding method thereof

Abstract

The invention discloses an injection molding device for toy shell production, which comprises: an injection molding unit, which comprises an upper mold and a lower mold matched with the upper mold, a corresponding upper mold base is arranged above the upper mold, and a corresponding lower mold base is arranged below the lower mold; the cooling backflow unit comprises a plurality of sets of backflow water channels evenly distributed on one side of the upper die and one side of the lower die, a piston plate is connected to the lower side wall of the lower die base in a sealed and sliding mode, and an ejector plate is arranged on the inner wall of a cavity of the lower die; an injection molding method for toy shell production is suitable for any one of the molding devices and comprises the following steps that S1, a piston rod of the telescopic air cylinder is controlled to drive the upper mold and the lower mold to be closed, and injection molding is conducted on a cavity defined by the upper mold and the lower mold. The problem that the injection molding efficiency of the toy shell is low due to waste of energy consumption caused by continuous reduction of the temperature in the mold cavity is effectively solved.

Description

Technical Field

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

[0002] Toys refer to items specially designed and manufactured for entertainment and educational purposes, usually for children. The toy shell is a shell wrapped around the outside of the toy core to protect it and make it look beautiful. In the actual mass production process, it is mostly completed through the corresponding injection molding device. The injection molding device is a device used to manufacture plastic products. The plastic material is heated and melted, then injected into the mold, and the plastic product of the desired shape is obtained after cooling and molding.

[0003] The injection molding device currently used in the field of toy injection molding generally includes the processes of mold closing - injection cooling molding - mold opening and unloading during actual operation. In order to facilitate operation and simplify the operating steps, water is still flowing through the mold during the mold opening and unloading process. The continuous flow of water to the mold often leads to a continuous decrease in the mold cavity temperature, resulting in the cavity temperature being lower than the most suitable temperature for mold injection molding. The mold needs to be reheated and heated later, resulting in a waste of energy, which in turn leads to low efficiency in toy shell injection molding. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing injection molding device and molding method for producing toy shells, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide an injection molding device and a molding method for toy shell production, which is suitable for solving the problem that continuous water flow to the mold often easily leads to a continuous decrease in the mold cavity temperature, resulting in the cavity temperature being lower than the most suitable temperature for mold injection molding. The mold needs to be heated again subsequently, resulting in a waste of energy consumption, which in turn leads to the problem of low efficiency in toy shell injection molding.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an injection molding device for producing a toy shell, comprising:

[0008] An injection molding unit, comprising an upper mold and a lower mold matching the upper mold, wherein a corresponding upper mold base is arranged above the upper mold, and a corresponding lower mold base is arranged below the lower mold, wherein both the upper mold base and the lower mold base are hollow structures, and the upper mold base is fixedly connected to the lower mold base, and a hydraulic telescopic cylinder is inlaid and installed on the upper inner wall of the upper mold base, wherein the piston rod of the telescopic cylinder penetrates downwardly through the lower side wall of the upper mold base and is fixedly connected to the center of the top end of the upper mold, and a plurality of groups of evenly distributed cooling water channels are penetrated on both the upper mold and the lower mold;

[0009] The cooling reflux unit includes a plurality of groups of reflux water channels evenly arranged on one side of the upper mold and the lower mold, the lower side wall of the lower mold base is sealingly and slidably connected with a piston plate, the inner wall of the lower mold cavity is provided with a ejector plate, one side of the lower side wall of the ejector plate is fixedly connected to the upper side wall of the piston plate through a plurality of groups of evenly distributed ejector rods, the upper side wall of the piston plate and the side of the lower side wall of the ejector plate away from the ejector rod are fixedly connected with a reflux switching assembly, the reflux switching assembly is used to switch the cooling water flowing through the cooling water channel during mold opening and unloading back into the reflux water channel, the upper inner wall of the upper mold base is also fixedly connected with a reflux switching assembly and an ejector rod, and the cooling reflux unit also includes a reflux driving assembly for driving the piston plate to move up and down.

[0010] As a preferred solution of the injection molding device for producing toy shells described in the present invention, the reflux drive assembly includes a hollow cylinder fixedly installed on the side of the upper mold close to the reflux waterway and a piston disk vertically slidably connected to the inner wall of the hollow cylinder, a piston rod is fixedly connected to the center of the lower side wall of the piston disk, a piston rod is fixedly installed on one side of the lower mold, the top end of the piston rod is inserted into the lower end wall of the hollow cylinder and fixedly connected to the center of the lower side wall of the piston disk, the lower part of the inner cavity of the hollow cylinder is connected to the lower part of the inner cavity of the lower mold base through a ventilation hose, and a one-way valve is fixedly installed on the upper end of the side wall of the hollow cylinder.

[0011] As a preferred solution of the injection molding device for producing toy shells described in the present invention, the reflux switching assembly includes multiple top cylinders and liquid holes penetrating through the top cylinders at one end near the top material plate, and the first reflux hole and the second reflux hole are sequentially opened on the side of the liquid hole near the reflux waterway, and the first reflux hole and the second reflux hole are both consistent in size with the liquid holes, an electric telescopic rod is fixedly connected to the center of the inner wall at the lower end of the top cylinder, a blockage is fixedly connected to the top of the electric telescopic rod, a first elastic switch is fixedly connected to the inner wall of the lower side of the lower mold base, and a second elastic switch is fixedly connected to the inner wall of the upper side of the lower mold base, the first elastic switch and the second elastic switch are both fixedly connected to the electric telescopic rod, and a accommodating cavity matching the top cylinder is opened in the upper mold.

[0012] As a preferred solution of the injection molding device for producing a toy shell of the present invention, the upper side wall of the blocking is configured to be concave to match the liquid passage hole, and a sealing ring is provided at the edge of the blocking.

[0013] As a preferred solution of the injection molding device for producing a toy shell of the present invention, a plurality of symmetrically positioned fixing ears are fixedly connected to both sides of the upper mold base and the lower mold base, and a guide rod is fixedly connected between each pair of the fixing ears.

[0014] As a preferred solution of the injection molding device for producing a toy shell of the present invention, each of the guide rods is made of austenitic stainless steel.

[0015] As a preferred solution of the injection molding device for producing a toy shell of the present invention, the outer surfaces of the upper mold base and the lower mold base are both coated with an anti-corrosion coating of uniform thickness.

[0016] As a preferred solution of the injection molding device for producing a toy shell of the present invention, the upper end wall of the hollow cylinder is fixedly connected to the upper mold through a fixing plate, and the lower end of the piston rod is also fixedly connected to the lower mold through a fixing plate.

[0017] As a preferred solution of the injection molding device for producing a toy shell of the present invention, the lower end wall of the hollow cylinder is fixedly connected to a limiting ring, and the horizontal height of the top of the limiting ring is higher than the horizontal height of the top of the ventilation hose.

[0018] An injection molding method for producing a toy shell, the molding method is applicable to any of the above molding devices, and the molding method comprises the following steps:

[0019] S1: Control the piston rod of the telescopic cylinder to drive the upper mold and the lower mold to close, and inject into the cavity surrounded by the upper mold and the lower mold;

[0020] S2: After the injection molding is completed, the piston rod of the telescopic cylinder is controlled to retract, and the piston plate drives the ejector tube and the ejector rod to eject the ejector plate upward to unload the molded toy shell;

[0021] S3: During the unloading process, the first reflux hole is connected with the cooling water channel, the second reflux hole is connected with the return water channel, the front end of the cooling water channel forms a loop with the return water channel through the inside of the top tube, and the cooling water directly returns.

[0022] The beneficial effects of the present invention are as follows: the upper mold and the lower mold are closed, and the piston plate moves downward through the ejector rod and the ejector cylinder to reset the ejector plate. At this time, the electric telescopic rod is extended, the blockage is moved to the lower side of the liquid hole, the cooling water channel is opened, and the return water channel is blocked and closed, so that the molten material can be injected into the cavity surrounded by the upper mold and the lower mold. After injection molding and cooling, the piston rod of the telescopic cylinder is controlled to drive the upper mold to reset upward, the upper mold and the lower mold are separated, and the air in the hollow cylinder is pressed into the lower mold seat. The piston plate that is sealingly and slidingly connected to the lower mold seat is pushed upward, and the first return hole is connected to the cooling water channel, and the second return hole is opposite to the return water channel. The piston plate squeezes the second elastic switch, and the second elastic switch controls the electric telescopic rod to contract. The front end of the cooling water channel, the ejector cylinder and the return water channel form a loop, and the cooling water no longer flows through the entire cooling water channel, thereby reducing the energy consumption required for subsequent hot water cooling. The cooling water can be stopped during the process of mold opening and unloading, which effectively solves the problem of energy waste caused by the continuous decrease in the temperature in the mold cavity, thereby causing low efficiency in injection molding of toy shells. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of an injection molding device for producing a toy shell proposed by the present invention;

[0025] Figure 2 A schematic diagram of the structure of a reflux drive assembly of an injection molding device for producing a toy shell proposed by the present invention;

[0026] Figure 3 This is a schematic cross-sectional structure diagram of a lower mold of an injection molding device for producing a toy shell proposed by the present invention;

[0027] Figure 4 This is a schematic cross-sectional structure diagram of a lower mold base, a top cylinder and a lower mold of an injection molding device for producing a toy shell proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the connection structure between the upper mold base and the upper mold of an injection molding device for producing a toy shell proposed by the present invention;

[0029] Figure 6 A schematic diagram of the structure of a reflux switching assembly of an injection molding device for producing a toy shell proposed by the present invention;

[0030] Figure 7This is a schematic diagram of the top cylinder, electric telescopic rod and blocking coordination structure of an injection molding device for producing a toy shell proposed by the present invention;

[0031] Figure 8 The present invention is a schematic diagram of the steps of an injection molding method for producing a toy shell.

[0032] Description of the drawings: 100 injection molding unit, 101 upper mold, 102 lower mold, 103 upper mold base, 104 lower mold base, 105 hydraulic telescopic cylinder, 107 guide rod, 108 cooling water channel, 200 cooling reflux unit, 201 reflux water channel, 202 reflux drive assembly, 202a hollow cylinder, 202b piston disc, 202c piston rod, 202d ventilation hose, 202e one-way valve, 202f limit ring, 203 piston plate, 204 ejector plate, 205 ejector rod, 206 reflux switching assembly, 206a ejector cylinder, 206b liquid hole, 206c first reflux hole, 206d second reflux hole, 206e electric telescopic rod, 206f blockage, 207 first elastic switch, 208 second elastic switch, 209 accommodating cavity. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Example 1

[0038] Reference Figure 1-Figure 8, which is an embodiment of the present invention, provides an injection molding device for producing a toy shell, including: an injection molding unit 100 and a cooling reflux unit 200.

[0039] The injection molding unit 100 includes an upper mold 101 and a lower mold 102 matched with the upper mold 101. A corresponding upper mold base 103 is arranged above the upper mold 101, and a corresponding lower mold base 104 is arranged below the lower mold 102. The outer surfaces of the upper mold base 103 and the lower mold base 104 are plated with a layer of anti-corrosion coating with uniform thickness. The setting of the anti-corrosion coating improves the corrosion resistance of the upper mold base 103 and the lower mold base 104. Both the upper mold base 103 and the lower mold base 104 are hollow structures, and the upper mold base 103 and the lower mold base 104 are fixedly connected. A plurality of fixed symmetrically positioned Ears, each pair of fixed ears are fixedly connected with a guide rod 107, and the upper die base 103 and the lower die base 104 can be firmly connected by the arrangement of the guide rod 107 and the fixed ears. Each guide rod 107 is made of austenitic stainless steel. The guide rod 107 made of austenitic stainless steel not only has strong corrosion resistance, but also can meet its own strength requirements. A hydraulic telescopic cylinder 105 is inlaid and installed on the upper inner wall of the upper die base 103. The piston rod of the telescopic cylinder penetrates the lower side wall of the upper die base 103 downward and is fixedly connected to the center of the top of the upper die 101. Multiple groups of evenly distributed cooling water channels 108 are penetrated on the upper die 101 and the lower die 102;

[0040] Secondly, the cooling reflux unit 200 includes a plurality of groups of reflux water channels 201 evenly arranged on one side of the upper mold 101 and the lower mold 102, the lower side wall of the lower mold base 104 is sealingly and slidably connected with a piston plate 203, and the inner wall of the cavity of the lower mold 102 is provided with a ejector plate 204, and one side of the lower side wall of the ejector plate 204 is fixedly connected to the upper side wall of the piston plate 203 through a plurality of groups of evenly distributed ejector rods 205, and the upper side wall of the piston plate 203 and the side of the lower side wall of the ejector plate 204 away from the ejector rod 205 are fixedly connected with a reflux switching assembly 206, and the reflux switching assembly 206 is used to switch the cooling water flowing through the cooling water channel 108 during the mold opening and unloading process to flow back into the reflux water channel 201, and the upper inner wall of the upper mold base 103 is also fixedly connected with the reflux switching assembly 206 and the ejector rod 205, and the cooling reflux unit 200 also includes a reflux driving assembly 202 for driving the piston plate 203 to move up and down.

[0041] Furthermore, the reflux drive assembly 202 includes a hollow cylinder 202a fixedly mounted on the side of the upper mold 101 close to the reflux waterway 201 and a piston plate 202b vertically slidably connected to the inner wall of the hollow cylinder 202a. The upper end wall of the hollow cylinder 202a is fixedly connected to the upper mold 101 through a fixed plate, and the lower end of the piston rod 202c is also fixedly connected to the lower mold 102 through a fixed plate. The setting of the fixed plate enhances the connection between the hollow cylinder 202a and the upper mold 101 and the piston rod 202c. The connection stability with the lower mold 102, a piston rod 202c is fixedly connected to the center of the lower side wall of the piston disk 202b, a piston rod 202c is fixedly installed on one side of the lower mold 102, the top end of the piston rod 202c is inserted into the lower end wall of the hollow cylinder 202a and fixedly connected to the center of the lower side wall of the piston disk 202b, the lower part of the inner cavity of the hollow cylinder 202a is connected to the lower part of the inner cavity of the lower mold base 104 through a ventilation hose 202d, and a one-way valve 202e is fixedly installed on the upper end of the side wall of the hollow cylinder 202a.

[0042] Furthermore, the reflux switching assembly 206 includes a plurality of top tubes 206a and a liquid-passing hole 206b extending through the top tube 206a at one end close to the top material plate 204, and a first reflux hole 206c and a second reflux hole 206d are sequentially provided on one side of the liquid-passing hole 206b close to the reflux waterway 201, and the first reflux hole 206c and the second reflux hole 206d are both the same size as the liquid-passing hole 206b, and an electric telescopic rod 206e is fixedly connected to the center of the inner wall at the lower end of the top tube 206a, and the electric telescopic rod 206e is fixedly connected to ... A blockage 206f is fixedly connected to the top of 6e, and the upper side wall of the blockage 206f is set to a concave shape matching the liquid hole 206b, and a sealing ring is padded at the edge of the blockage 206f, a first elastic switch 207 is fixedly connected to the lower inner wall of the lower mold base 104, and a second elastic switch 208 is fixedly connected to the upper inner wall of the lower mold base 104, the first elastic switch 207 and the second elastic switch 208 are both fixedly connected to the electric telescopic rod 206e, and a accommodating cavity 209 matching the top cylinder 206a is opened in the upper mold 101.

[0043] An injection molding method for producing a toy shell, the molding method is applicable to any of the above molding devices, and the molding method comprises the following steps:

[0044] S1: Control the piston rod of the telescopic cylinder to drive the upper mold 101 and the lower mold 102 to close, and inject into the cavity surrounded by the upper mold 101 and the lower mold 102;

[0045] S2: After the injection molding is completed, the piston rod of the telescopic cylinder is controlled to retract, and the piston plate 203 drives the ejector tube 206a and the ejector rod 205 to eject the ejector plate 204 upward, thereby unloading the molded toy shell;

[0046] S3: During the unloading process, the first reflow hole 206c is connected to the cooling water channel 108, and the second reflow hole 206d is connected to the reflow water channel 201. The front end of the cooling water channel 108 forms a loop with the reflow water channel 201 through the top tube 206a, and the cooling water directly refluxes.

[0047] Example 2

[0048] Reference Figure 2 , which is different from Example 1, is that: the lower end wall of the hollow cylinder 202a is fixedly connected to a limiting ring 202f, and the horizontal height of the top of the limiting ring 202f is higher than the horizontal height of the top of the ventilation hose 202d. By setting the limiting ring 202f, the maximum descending depth of the piston disc 202b can be limited, which effectively solves the defect that the piston disc 202b descends below the top opening of the ventilation hose 202d, affecting the subsequent lifting and lowering of the piston plate 203 in the lower mold base 104.

[0049] During use, the piston rod of the telescopic cylinder is controlled to extend, and the upper mold 101 is closed with the lower mold 102. The piston plate 202b, which is sealed and slidably connected to the hollow cylinder 202a, draws the gas in the lower mold base 104 into the hollow cylinder 202a. The piston plate 203, which is sealed and slidably connected to the inner wall of the lower mold base 104, moves the ejector plate 204 downward through the ejector rod 205 and the ejector cylinder 206a to reset. When the piston plate 203 touches the first elastic switch 207, the electric telescopic rod 206e is extended, and the blocking 206f moves accordingly. When the liquid hole 206b reaches the lower side, the cooling water channel 108 is opened, and the return water channel 201 is blocked and closed by 206f, the molten material can be injected into the cavity surrounded by the upper mold 101 and the lower mold 102. After the injection molding is cooled and formed, the piston rod of the telescopic cylinder is controlled to drive the upper mold 101 to reset upward, and the upper mold 101 and the lower mold are separated. The air in the hollow cylinder 202a is pressed into the lower mold base 104, and the piston plate 203 which is sealed and slidably connected with the lower mold base 104 is pushed up accordingly, and the first return hole 206c is connected to the cooling water channel 108 accordingly, and the first return hole 206c is connected to the cooling water channel 108. The second reflux hole 206d is opposite to the reflux water channel 201, and the piston plate 203 squeezes the second elastic switch 208, which then controls the electric telescopic rod 206e to contract. The front end of the cooling water channel 108 in the lower mold 102, the top cylinder 206a and the reflux water channel 201 form a loop, and the cooling water no longer flows through the entire cooling water channel 201. Similarly, during the upward movement of the upper mold 101, the top cylinder 206a fixedly installed on the upper inner wall of the upper mold base 103 moves downward relative to the upper mold 101, and the top cylinder 206a located above the top cylinder 206a moves downward relative to the upper mold 101. The first reflow hole 206c of 6a is connected with the cooling water channel 108 in the upper mold 101, and the second reflow hole 206d is connected with the reflow water channel 201 in the upper mold 101. The front end of the cooling water channel 108 in the upper mold 101, the top cylinder 206a and the reflow water channel 201 form a loop, which reduces the energy consumption required for subsequent hot water cooling. The cooling water can be stopped during the mold opening and unloading process, which effectively solves the problem of low efficiency of toy shell injection molding caused by energy waste due to the continuous decrease in temperature in the mold cavity.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An injection molding device for producing toy shells, characterized in that: include: An injection molding unit (100) comprises an upper mold (101) and a lower mold (102) matched with the upper mold (101); a corresponding upper mold base (103) is arranged above the upper mold (101), and a corresponding lower mold base (104) is arranged below the lower mold (102); the upper mold base (103) and the lower mold base (104) are both hollow structures, and the upper mold base (103) is fixedly connected to the lower mold base (104); a hydraulic telescopic cylinder (105) is embedded and installed on the upper inner wall of the upper mold base (103); the piston rod of the telescopic cylinder penetrates downward through the lower side wall of the upper mold base (103) and is fixedly connected to the center of the top end of the upper mold (101); and a plurality of groups of evenly distributed cooling water channels (108) are penetrated on both the upper mold (101) and the lower mold (102); The cooling reflux unit (200) comprises a plurality of groups of reflux water channels (201) uniformly arranged on one side of an upper mold (101) and a lower mold (102); a piston plate (203) is sealingly and slidably connected to the lower side wall of the lower mold base (104); an ejector plate (204) is arranged on the inner wall of the cavity of the lower mold (102); one side of the lower side wall of the ejector plate (204) is fixedly connected to the upper side wall of the piston plate (203) through a plurality of groups of uniformly distributed ejector rods (205); the upper side wall of the piston plate (203) and the ejector plate (204) are fixedly connected to each other. 04) A reflux switching assembly (206) is fixedly connected to the side of the lower side wall away from the push rod (205), and the reflux switching assembly (206) is used to switch the cooling water flowing through the cooling water channel (108) during the mold opening and unloading process to flow back into the reflux water channel (201). The upper inner wall of the upper mold base (103) is also fixedly connected to the reflux switching assembly (206) and the push rod (205). The cooling reflux unit (200) also includes a reflux drive assembly (202) for driving the piston plate (203) to move up and down.

2. The injection molding device for producing a toy shell according to claim 1, characterized in that: The reflux drive assembly (202) comprises a hollow cylinder (202a) fixedly mounted on a side of the upper mold (101) close to the reflux waterway (201) and a piston disk (202b) vertically slidably connected to the inner wall of the hollow cylinder (202a); a piston rod (202c) is fixedly connected to the center of the lower side wall of the piston disk (202b); a piston rod (202c) is fixedly mounted on one side of the lower mold (102); the top end of the piston rod (202c) is inserted into the lower end wall of the hollow cylinder (202a) and is fixedly connected to the center of the lower side wall of the piston disk (202b); the lower part of the inner cavity of the hollow cylinder (202a) is connected to the lower part of the inner cavity of the lower mold base (104) via a ventilation hose (202d); and a one-way valve (202e) is fixedly mounted on the upper end of the side wall of the hollow cylinder (202a).

3. The injection molding device for producing a toy shell according to claim 1, characterized in that: The reflux switching assembly (206) comprises a plurality of top tubes (206a) and a liquid passage hole (206b) extending through the top tube (206a) and close to one end of the top material plate (204), and a first reflux hole (206c) and a second reflux hole (206d) are sequentially provided on one side of the liquid passage hole (206b) close to the reflux water channel (201), and the first reflux hole (206c) and the second reflux hole (206d) are both the same size as the liquid passage hole (206b), and an electric The electric telescopic rod (206e) is fixedly connected to the top of the electric telescopic rod (206e) with a blocker (206f), the lower inner wall of the lower mold base (104) is fixedly connected to a first elastic switch (207), and the upper inner wall of the lower mold base (104) is fixedly connected to a second elastic switch (208), the first elastic switch (207) and the second elastic switch (208) are both fixedly connected to the electric telescopic rod (206e), and the upper mold (101) is provided with a receiving cavity (209) matching the top cylinder (206a).

4. The injection molding device for producing a toy shell according to claim 3, characterized in that: The upper side wall of the obstruction (206f) is configured to be concave and matches the liquid passage hole (206b), and a sealing ring is provided at the edge of the obstruction (206f).

5. The injection molding device for producing a toy shell according to claim 1, characterized in that: A plurality of symmetrically positioned fixing ears are fixedly connected to both sides of the upper die base (103) and the lower die base (104), and a guide rod (107) is fixedly connected between each pair of the fixing ears.

6. The injection molding device for producing a toy shell according to claim 5, characterized in that: Each guide rod (107) is made of austenitic stainless steel.

7. The injection molding device for producing a toy shell according to claim 1, characterized in that: The outer surfaces of the upper die seat (103) and the lower die seat (104) are both plated with an anti-corrosion coating of uniform thickness.

8. The injection molding device for producing a toy shell according to claim 2, characterized in that: The upper end wall of the hollow cylinder (202a) is fixedly connected to the upper mold (101) via a fixing plate, and the lower end of the piston rod (202c) is also fixedly connected to the lower mold (102) via a fixing plate.

9. The injection molding device for producing a toy shell according to claim 2, characterized in that: The lower end wall of the hollow cylinder (202a) is fixedly connected to a limiting ring (202f), and the horizontal height of the top end of the limiting ring (202f) is higher than the horizontal height of the top end of the ventilation hose (202d).

10. An injection molding method for producing a toy shell, the molding method is applicable to any molding device in claims 1-9 above, characterized in that: And the molding method comprises the following steps: S1: Control the piston rod of the telescopic cylinder to drive the upper mold (101) and the lower mold (102) to close, and inject into the cavity surrounded by the upper mold (101) and the lower mold (102); S2: After the injection molding is completed, the piston rod of the telescopic cylinder is controlled to retract, and the piston plate (203) drives the ejector cylinder (206a) and the ejector rod (205) to eject the ejector plate (204) upwards, thereby unloading the molded toy shell; S3: During the unloading process, the first reflux hole (206c) is connected to the cooling water channel (108), the second reflux hole (206d) is connected to the reflux water channel (201), the front end of the cooling water channel (108) forms a loop with the reflux water channel (201) through the inside of the top tube (206a), and the cooling water directly refluxes.

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