A molding die for toy keychains

Abstract

This utility model discloses a molding die for toy keychains, comprising a die body, which includes an upper die and a lower die arranged opposite to each other. The upper die includes an upper top plate and an upper template located at the lower end of the upper top plate. The lower die includes a lower bottom plate, a lower template located at the upper end of the lower bottom plate, and an ejector plate located between the lower template and the lower bottom plate. The lower surface of the upper template has an upper mold cavity, and the upper surface of the lower template has a lower mold cavity adapted to the upper mold cavity. The upper mold cavity and the lower mold cavity form an injection molding cavity for molding toy keychains. A positioning structure and a fastening structure are provided between the upper mold cavity and the lower mold cavity. When the upper die and the lower die are closed, the upper template and the lower template are positioned by the positioning structure, and fixed by the fastening structure. This utility model can quickly injection mold toy keychains with good molding effect, high injection efficiency, high precision, convenient demolding, and strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of toy keychain molding technology, and in particular to a molding die for toy keychains. Background Technology

[0002] In the existing technology, injection molds are widely used in various plastic product processing fields. Existing toy keychains are often injection molded using injection molds. However, existing toy keychains often suffer from injection molding difficulties, inaccurate positioning of the upper and lower mold plates, easy deviation, difficulty in separating the molded toy keychain from the injection cavity of the mold, poor molding effect, low injection efficiency, and low precision.

[0003] In terms of related technologies, existing molding dies often suffer from problems such as injection difficulties, inaccurate positioning of the upper and lower mold plates, easy deviation, poor molding effect, low injection efficiency, and low precision. There is still a lack of better technical solutions. Utility Model Content

[0004] In view of this, it is necessary to provide a molding die for toy keychains, so as to at least solve the problems of existing molding dies in the related technology, such as injection difficulties, inaccurate positioning of the upper and lower mold plates, easy deviation, unstable structure, poor molding effect, low injection efficiency, and low precision.

[0005] This application provides a molding die for a toy keychain, comprising a die body, an upper die and a lower die disposed opposite to each other. The upper die includes an upper top plate and an upper template disposed at the lower end of the upper top plate. The lower die includes a lower bottom plate, a lower template disposed at the upper end of the lower bottom plate, and an ejector plate disposed between the lower template and the lower bottom plate. The lower surface of the upper template has an upper mold cavity, and the upper surface of the lower template has a lower mold cavity adapted to the upper mold cavity. The upper mold cavity and the lower mold cavity form an injection molding cavity for molding the toy keychain. A positioning structure and a fastening structure are provided between the upper mold cavity and the lower mold cavity. When the upper die and the lower die are closed, the upper template and the lower template are positioned by the positioning structure, and the upper template and the lower template are fixed by the fastening structure.

[0006] In one embodiment, the positioning structure includes a first positioning block disposed on the side of the upper mold plate and a second positioning block disposed on the side of the lower mold plate and adapted to the first positioning block. The lower surface of the first positioning block is provided with a positioning protrusion, and the upper surface of the second positioning block is provided with a positioning groove adapted to the positioning protrusion. When the upper mold and the lower mold are closed, the positioning protrusion of the first positioning block is embedded in the positioning groove of the second positioning block, thereby preventing the upper mold from deviating when the upper mold and the lower mold are closed.

[0007] In one embodiment, the upper template has a first receiving groove on its side, the first positioning block has a first fixing hole, and the first positioning block is fixed in the first receiving groove by bolts through the first fixing hole. The lower template has a second receiving groove on its side, the second positioning block has a second fixing hole, and the second positioning block is fixed in the second receiving groove by bolts through the second fixing hole.

[0008] In one embodiment, the fastening structure includes a connecting block, one end of which is provided with a third fixing hole and the other end of which is provided with a fourth fixing hole; wherein, when the upper mold and the lower mold are closed, one end of the connecting block is fixed to the upper mold plate by a bolt through a second fixing hole, and the other end of the connecting block is fixed to the lower mold plate by a bolt through a fourth fixing hole, thereby making the mold closing between the upper mold and the lower mold stable.

[0009] In one embodiment, the bottom of the upper mold plate is provided with a positioning post, and the surface of the lower mold plate is provided with a positioning hole adapted to the positioning post; wherein, the positioning post and the positioning hole are used to further limit and position the upper mold cavity and the lower mold cavity when they are closed, so as to prevent the upper mold cavity and the lower mold cavity from deviating.

[0010] In one embodiment, the upper top plate is provided with a glue inlet at its upper end, and the upper mold plate is provided with a flow channel. One end of the flow channel is connected to the glue inlet, and the other end of the flow channel is connected to the upper mold cavity. When the upper mold plate and the lower mold plate are closed, liquid plastic is injected into the flow channel through the glue inlet and flows into the upper mold cavity through the flow channel. The liquid plastic is then injection molded into a toy keychain through the injection molding cavity.

[0011] In one embodiment, the lower base plate is provided with mounting holes, and an ejector plate movable area is provided between the upper end of the lower base plate and the lower end of the lower template. The upper surface of the ejector plate is provided with a first guide post that penetrates the lower template. The ejector plate passes through the mounting holes and is connected to an external driving device. The external driving device drives the ejector plate to move up and down along the direction of the first guide post within the ejector plate movable area, thereby ejecting the toy keychain from the injection molding cavity.

[0012] In one embodiment, the upper surface of the ejector plate is provided with an ejector pin, and the lower template is provided with an ejector pin hole adapted to the ejector pin. The ejector pin is connected to the injection molding cavity through the ejector pin hole. The external driving device drives the ejector pin to move up and down through the ejector plate, so that the ejector pin passes through the ejector pin hole and ejects the toy keychain from the injection molding cavity.

[0013] In one embodiment, a limiting member is provided on one side of the ejector plate, and a limiting device adapted to the limiting member is provided on the lower base plate; wherein, the limiting member and the limiting device are used for positioning detection between the ejector plate and the lower base plate.

[0014] In one embodiment, a protruding connecting block is provided on one side of the upper top plate and one side of the lower bottom plate; wherein the protruding connecting block is used for transmission connection with an external driving device, thereby controlling the opening or closing of the mold between the upper mold and the lower mold.

[0015] The beneficial effects of this utility model are as follows: This application has a reasonable design and novel structure. The upper mold and the lower mold can be quickly opened or closed, and the mold opening or closing effect is good. Through the structural design of the positioning structure and the fastening structure, specifically, during the injection molding process when the upper mold and the lower mold are closed, the first positioning block of the upper mold plate and the second positioning block of the lower mold plate cooperate with each other, and the positioning protrusion is embedded in the positioning groove, which can effectively prevent the upper mold and the lower mold from deviating. Through the structural design of the connecting block, the upper mold and the lower mold are locked when they are closed, and the mold closing effect is good. Toy keychains can be quickly injection molded, with good molding effect, high injection efficiency, and high precision. Through the structural design of the ejector plate, the injection molded toy keychains are ejected, making the toy keychains easy to demold and highly practical. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a structural schematic diagram of the upper mold from one perspective of an embodiment of this application; Figure 3 This is a structural schematic diagram of the upper mold from another perspective in an embodiment of this application; Figure 4 This is a schematic diagram of the lower mold structure according to an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the bottom plate and the top plate in an embodiment of this application. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figures 1 to 5 This application discloses a molding die for a toy keychain, comprising a die body, which includes an upper die 100 and a lower die 200 disposed opposite to each other. The upper die 100 includes an upper top plate 11 and an upper template 12 disposed at the lower end of the upper top plate 11. The lower die 200 includes a lower bottom plate 21, a lower template 22 disposed at the upper end of the lower bottom plate 21, and an ejector plate 23 disposed between the lower template 22 and the lower bottom plate 21. The lower surface of the upper template 12 is provided with an upper mold cavity 13, and the lower die... The upper surface of plate 22 is provided with a lower mold cavity 24 that is adapted to the upper mold cavity 13. The upper mold cavity 13 and the lower mold cavity 24 form an injection molding cavity 600 for molding toy keychains. A positioning structure 300 and a fastening structure 400 are provided between the upper mold cavity 13 and the lower mold cavity 24. When the upper mold 100 and the lower mold 200 are closed, the upper template 12 and the lower template 22 are positioned by the positioning structure 300, and the upper template 12 and the lower template 22 are fixed by the fastening structure 400.

[0021] It should be noted that with this configuration, the upper mold 100 and the lower mold 200 can be quickly opened or closed, with good opening or closing effect. Through the structural design of the positioning structure 300 and the fastening structure 400, during the injection molding process when the upper mold 100 and the lower mold 200 are closed, the positioning structure 300 can effectively limit the upper template 12 and the lower template 22, and the fastening structure 400 can effectively fix the upper template 12 and the lower template 22, thereby allowing the upper mold cavity 13 to accurately cover the upper mold cavity 24 to form a complete injection cavity 600, which improves the injection precision of toy keychains.

[0022] To achieve precise positioning, in some optional embodiments, the positioning structure 300 includes a first positioning block 121 located on the side of the upper mold plate 12 and a second positioning block 221 located on the side of the lower mold plate 22 and adapted to the first positioning block 121. The lower surface of the first positioning block 121 is provided with a positioning protrusion 122, and the upper surface of the second positioning block 221 is provided with a positioning groove 222 adapted to the positioning protrusion 122. When the upper mold 100 and the lower mold 200 are closed, the positioning protrusion 122 of the first positioning block 121 is embedded in the positioning groove 222 of the second positioning block 221, thereby preventing the upper mold 100 and the lower mold 200 from deviating when they are closed.

[0023] It should be noted that with this configuration, during the injection molding process when the upper mold 100 and the lower mold 200 are closed, the upper ejector plate 11 drives the upper template 12 to move toward the lower template 22, and the lower ejector plate 21 drives the lower template 22 to move toward the upper template 12, so that the upper template 12 and the lower template 22 fit together. At this time, the first positioning block 121 and the second positioning block 221 cooperate with each other, and the positioning protrusion 122 is embedded in the positioning groove 222 for positioning, which can effectively prevent the upper mold 100 and the lower mold 200 from deviating when closing, thus improving the precision of this application.

[0024] To achieve the purpose of arranging the first positioning block 121 and the second positioning block 221, in some optional embodiments, the upper template 12 is provided with a first receiving groove 123 on its side, and the first positioning block 121 is provided with a first fixing hole. The first positioning block 121 is fixed in the first receiving groove 123 by bolts through the first fixing hole, thereby fastening the first positioning block 121 to the upper template 12; the lower template 22 is provided with a second receiving groove 223 on its side, and the second positioning block 221 is provided with a second fixing hole. The second positioning block 221 is fixed in the second receiving groove 223 by bolts through the second fixing hole, thereby fastening the second positioning block 221 to the lower template 22.

[0025] In order to achieve the purpose of fastening the upper mold 100 and the lower mold 200 when they are closed, in some optional embodiments, the fastening structure 400 includes a connecting block 41, one end of the connecting block 41 is provided with a third fixing hole, and the other end of the connecting block 41 is provided with a fourth fixing hole; wherein, when the upper mold 100 and the lower mold 200 are closed, one end of the connecting block 41 is fixed to the upper template 12 by bolts through the second fixing hole, and the other end of the connecting block 41 is fixed to the lower template 22 by bolts through the fourth fixing hole, thereby making the mold closing between the upper mold 100 and the lower mold 200 stable.

[0026] It should be noted that with this configuration, by adopting the structural design of the connecting block 41, when the upper mold 100 and the lower mold 200 are closed, the connecting block 41 locks the upper mold 11 and the lower mold 21 together, so that the upper mold 11 and the lower mold 21 are tightly closed, resulting in a good mold closing effect.

[0027] In some alternative embodiments, the bottom of the upper template 12 is provided with a positioning post 124, and the surface of the lower template 22 is provided with a positioning hole 224 that is adapted to the positioning post 124; wherein, the positioning post 124 and the positioning hole 224 are used to further limit and position the upper mold cavity 13 and the lower mold cavity 24 when they are closed, so as to prevent the upper mold cavity 13 and the lower mold cavity 24 from deviating.

[0028] In some alternative embodiments, the upper top plate 11 is provided with a glue inlet 111 at its upper end, and the upper mold plate 12 is provided with a flow channel. One end of the flow channel is connected to the glue inlet 111, and the other end of the flow channel is connected to the upper mold cavity 13. When the upper mold plate 12 and the lower mold plate 22 are closed, liquid plastic is injected into the flow channel through the glue inlet 111 and flows into the upper mold cavity through the flow channel. The liquid plastic is injection molded into a toy keychain through the injection molding cavity 600.

[0029] In some alternative embodiments, the lower base plate 21 is provided with mounting holes, and an ejector plate movable area is provided between the upper end of the lower base plate 21 and the lower end of the lower template 22. The upper surface of the ejector plate 23 is provided with a first guide post 231 that penetrates the lower template 22. The ejector plate 23 passes through the mounting holes and is connected to an external drive device. The external drive device drives the ejector plate 23 to move up and down along the direction of the first guide post 231 within the ejector plate movable area, thereby ejecting the toy keychain from the injection molding cavity 600.

[0030] In some alternative embodiments, the upper surface of the ejector plate 23 is provided with an ejector pin 232, and the lower template 22 is provided with an ejector pin hole adapted to the ejector pin 232. The ejector pin 232 is connected to the injection cavity 600 through the ejector pin hole. The external drive device drives the ejector pin 232 to move up and down through the ejector plate, so that the ejector pin 232 passes through the ejector pin hole and ejects the toy keychain from the injection cavity 600.

[0031] In some alternative embodiments, a limiting member 233 is provided on one side of the ejector plate 23, and a limiting device 211 adapted to the limiting member 233 is provided on the lower base plate 21; wherein, the limiting member 233 and the limiting device 211 are used for positioning detection between the ejector plate 23 and the lower base plate 21.

[0032] In some alternative embodiments, a protruding connecting block 41 is provided on one side of the upper top plate 11 and one side of the lower bottom plate 21; wherein, the protruding connecting block 41 is used to drive the connection with an external driving device, thereby controlling the opening or closing of the mold between the upper mold 100 and the lower mold 200.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A molding die for a toy keychain, characterized in that, It includes a mold body, which includes an upper mold and a lower mold arranged opposite to each other. The upper mold includes an upper top plate and an upper template located at the lower end of the upper top plate. The lower mold includes a lower bottom plate, a lower template located at the upper end of the lower bottom plate, and an ejector plate located between the lower template and the lower bottom plate. The lower surface of the upper template has an upper mold cavity, and the upper surface of the lower template has a lower mold cavity adapted to the upper mold cavity. The upper mold cavity and the lower mold cavity form an injection molding cavity for molding toy keychains. A positioning structure and a fastening structure are provided between the upper mold cavity and the lower mold cavity. When the upper mold and the lower mold are closed, the upper template and the lower template are positioned by the positioning structure, and the upper template and the lower template are fixed by the fastening structure.

2. The molding die for toy keychains according to claim 1, characterized in that, The positioning structure includes a first positioning block disposed on the side of the upper mold plate and a second positioning block disposed on the side of the lower mold plate and adapted to the first positioning block. The lower surface of the first positioning block is provided with a positioning protrusion, and the upper surface of the second positioning block is provided with a positioning groove adapted to the positioning protrusion. When the upper mold and the lower mold are closed, the positioning protrusion of the first positioning block is embedded in the positioning groove of the second positioning block, thereby preventing the upper mold from deviating when the upper mold and the lower mold are closed.

3. The molding die for toy keychains according to claim 2, characterized in that, The upper template has a first receiving groove on its side, and the first positioning block has a first fixing hole. The first positioning block is fixed in the first receiving groove by bolts through the first fixing hole. The lower template has a second receiving groove on its side, and the second positioning block has a second fixing hole. The second positioning block is fixed in the second receiving groove by bolts through the second fixing hole.

4. The molding die for a toy keychain according to claim 3, characterized in that, The fastening structure includes a connecting block, one end of which is provided with a third fixing hole and the other end of which is provided with a fourth fixing hole; wherein, when the upper mold and the lower mold are closed, one end of the connecting block is fixed to the upper mold plate by a bolt through the second fixing hole, and the other end of the connecting block is fixed to the lower mold plate by a bolt through the fourth fixing hole, thereby making the mold closing between the upper mold and the lower mold stable.

5. The molding die for a toy keychain according to claim 1, characterized in that, The bottom of the upper mold plate is provided with a positioning post, and the surface of the lower mold plate is provided with a positioning hole that matches the positioning post; wherein, the positioning post and the positioning hole are used to further limit and position the upper mold cavity and the lower mold cavity when they are closed, so as to prevent the upper mold cavity and the lower mold cavity from deviating.

6. The molding die for a toy keychain according to claim 1, characterized in that, The upper top plate is provided with a glue inlet at its upper end, and the upper mold plate is provided with a flow channel. One end of the flow channel is connected to the glue inlet, and the other end of the flow channel is connected to the upper mold cavity. When the upper mold plate and the lower mold plate are closed, liquid plastic is injected into the flow channel through the glue inlet and flows into the upper mold cavity through the flow channel. The liquid plastic is then injection molded into a toy keychain through the injection molding cavity.

7. The molding die for a toy keychain according to claim 6, characterized in that, The lower base plate is provided with mounting holes, and an ejector plate movable area is provided between the upper end of the lower base plate and the lower end of the lower template. The upper surface of the ejector plate is provided with a first guide post that penetrates the lower template. The ejector plate passes through the mounting holes and is connected to an external driving device. The external driving device drives the ejector plate to move up and down along the direction of the first guide post within the ejector plate movable area, thereby ejecting the toy keychain from the injection molding cavity.

8. The molding die for a toy keychain according to claim 7, characterized in that, The upper surface of the ejector plate is provided with an ejector pin, and the lower template is provided with an ejector pin hole adapted to the ejector pin. The ejector pin is connected to the injection molding cavity through the ejector pin hole. The external driving device drives the ejector pin to move up and down through the ejector plate, so that the ejector pin passes through the ejector pin hole and ejects the toy keychain from the injection molding cavity.

9. The molding die for a toy keychain according to claim 8, characterized in that, A limiting member is provided on one side of the ejector plate, and a limiting device adapted to the limiting member is provided on the lower base plate; wherein, the limiting member and the limiting device are used for positioning detection between the ejector plate and the lower base plate.

10. The molding die for a toy keychain according to claim 1, characterized in that, One side of the upper top plate and one side of the lower bottom plate are provided with protruding connecting blocks; wherein, the protruding connecting blocks are used for transmission connection with external driving equipment, thereby controlling the opening or closing of the mold between the upper mold and the lower mold.

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