Plastic toy processing mold with cooling function

Abstract

The utility model relates to the technical field of plastic toy processing, concretely to a plastic toy processing mould with cooling function, including first module and second module, first module is equipped with boss and model block, second module is equipped with guide rod, recess, mould groove and injection hole, and the boss is embedded into recess when the mould is closed, and the model block is embedded into mould groove and forms a cavity. The first module is provided with a pipe groove on the bonding surface of the first assembly table and embedded with a cooling pipeline, which realizes rapid cooling by using a thin-walled structure, the second module is connected with the second assembly plate through the second assembly table, and the through hole thereon is connected with the injection head, the model block is provided with a taper groove, and the ejection mechanism is composed of the ejector rod and the tapered round block, the pneumatic rod is driven by the cylinder during demolding, the guide plate is driven to slide along the guide rod, the ejector rod ejects the tapered round block to complete demolding, the utility model optimizes the cooling layout and the ejection mechanism, improves the cooling efficiency and the demolding stability, and has the advantages of reasonable structure and short forming cycle.

Description

Technical Field

[0001] This utility model relates to the field of plastic toy processing technology, specifically to a plastic toy processing mold with a cooling function. Background Technology

[0002] In the mass production of plastic toys, injection molding is a widely used manufacturing process. Molten plastic is injected into the cavity of a mold, and after cooling and solidification, it forms a toy product of a specific shape. In this process, the cooling efficiency of the mold directly affects the production pace and product quality. Molds with cooling functions are designed to accelerate the solidification process of plastic, thereby shortening the molding cycle of a single product and improving production efficiency. At the same time, uniform and effective cooling helps reduce defects such as deformation and shrinkage caused by temperature differences and internal stress, ensuring product dimensional stability and appearance quality, and is a key link in achieving efficient and high-quality production.

[0003] In order to achieve rapid cooling, traditional molds in the existing technology often need to be machined with deep grooves on the module to place cooling pipes. This increases the processing difficulty and cost. At the same time, there may be problems with poor centering or low efficiency in the mold closing and demolding process, which affects the production cycle and product quality consistency. Utility Model Content

[0004] The purpose of this invention is to provide a plastic toy processing mold with a cooling function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic toy processing mold with cooling function includes a first module and a second module. The first module has a boss fixed in the middle, and a model block is fixed in the middle of the boss. Guide rods are fixed at the four corners of the second module. A groove is formed in the middle of the second module, and a mold groove is formed in the groove. An injection hole is formed in the middle of the mold groove. The boss is embedded in the groove, and the model block is embedded in the mold groove. The first module is installed on one side of a first assembly table by bolts. Guide holes are formed at the four corners of the first module and the first assembly table, and guide rods are inserted into the guide holes. Tube grooves are formed at the same position on the mating surfaces of the first module and the first assembly table, and cooling pipes are embedded in the tube grooves. The thickness of the first module is the same as the diameter of the tube groove.

[0007] Preferably, a conical groove is provided in the middle of the model block, and a top groove is provided in the middle of the conical groove and the middle of the first assembly platform, respectively. A conical block is embedded in the conical groove, and a top rod is inserted into the top groove.

[0008] Preferably, one end of the top rod is fixed to the conical block, and the other end of the top rod is fixedly installed in the middle of the guide plate. The guide plate is slidably disposed between the extension plates, and the extension plates are respectively installed between the first assembly plate and the first assembly table by bolts.

[0009] Preferably, guide holes are provided on the upper and lower sides of the top rod on the guide plate, and guide rods are slidably installed in the guide holes. One end of each guide rod is fixedly installed on the side of the first assembly platform opposite to the first module.

[0010] Preferably, the first assembly plate has a telescopic hole in the middle, and a pneumatic rod is slidably installed in the telescopic hole. One end of the pneumatic rod is connected to the side of the guide plate opposite to the top rod, and the other end of the pneumatic rod is located at the output end of the cylinder.

[0011] Preferably, the second module is mounted on the second assembly platform by bolts, the second assembly platform is connected to the second assembly plate by bolts, and through holes are respectively opened in the middle of the second assembly platform and the second assembly plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This plastic toy processing mold with cooling function, through the design that the thickness of the first module is the same as the diameter of the tube groove, combined with the structure of the cooling pipe embedded in the tube groove, achieves efficient circulation of the cooling medium and shortens the heat conduction distance, thereby achieving the effect of rapid and uniform cooling, while avoiding the high difficulty of deep hole processing in traditional molds to get close to the cavity.

[0014] 2. This plastic toy processing mold with cooling function achieves precise guidance and centering during the mold closing process through the insertion and cooperation of guide rods and guide holes, reducing the risk of mold misalignment. The product is automatically ejected through the linkage mechanism of pneumatic rods, guide plates and ejector rods driven by cylinders, thereby improving demolding efficiency and production stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a connection diagram of the first module of this utility model;

[0017] Figure 3 This is a connection diagram of the first assembly platform of this utility model;

[0018] Figure 4 This is a connection diagram of the second module of this utility model.

[0019] In the diagram: 101, First module; 102, Boss; 103, Model block; 104, Second module; 105, Guide rod; 106, Groove; 107, Mold groove; 108, Injection hole; 109, First assembly platform; 110, Guide hole; 111, Pipe groove; 112, Cooling pipe; 113, Conical groove; 114, Top groove; 115, Conical block; 116, Top rod; 117, Guide plate; 118, Extension plate; 119, First assembly plate; 120, Guide hole; 121, Guide rod; 122, Telescopic hole; 123, Pneumatic rod; 124, Cylinder; 125, Second assembly platform; 126, Second assembly plate; 127, Through hole. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0022] A plastic toy processing mold with cooling function includes a first module 101 and a second module 104. A boss 102 is fixedly provided in the middle of the first module 101, and a model block 103 is fixedly provided in the middle of the boss 102. Guide rods 105 are fixedly provided at the four corners of the second module 104. A groove 106 is formed in the middle of the second module 104, and a mold groove 107 is formed within the groove 106. An injection hole 108 is formed in the middle of the mold groove 107. The boss 102 is embedded in the groove 106, and the model block... 103 is embedded in the mold groove 107. The first module 101 is installed on one side of the first assembly table 109 by bolts. The four corners of the first module 101 and the first assembly table 109 are respectively provided with guide holes 110. Guide rods 105 are respectively inserted into the guide holes 110. The mating surfaces of the first module 101 and the first assembly table 109 are respectively provided with pipe grooves 111. Cooling pipes 112 are embedded in the pipe grooves 111. The thickness of the first module 101 is the same as the diameter of the pipe grooves 111.

[0023] The above scheme utilizes the cooperation of the first and second modules to form the basic main structure of the mold, thereby achieving cavity formation. The boss embedded in the groove ensures precise alignment and fit between the first and second modules during mold closing. The mold block embedded in the mold groove forms the molding cavity for the plastic toy product. The guide rod connected to the guide holes on the first module and the first assembly table provides precise guidance and stability during mold closing. The first module, bolted to the first assembly table, ensures secure assembly and fixation of the moving mold. The presence of cooling pipes embedded in the mating surfaces of the first module and the first assembly table allows for efficient circulation of the cooling medium in key parts of the mold. The design of the first module having the same thickness as the pipe diameter allows for thin-walled modules, enabling cooling pipes to be closer to the cavity, improving heat transfer efficiency, and reducing the difficulty of deep hole machining.

[0024] In this embodiment, preferably, a conical groove 113 is provided in the middle of the model block 103, and a top groove 114 is provided in the middle of the conical groove 113 and the middle of the first assembly platform 109, respectively. A conical block 115 is embedded in the conical groove 113, and a top rod 116 is inserted into the top groove 114.

[0025] The above scheme provides a space for the conical block of the ejector mechanism by creating a conical groove in the middle of the model block. A top groove, located in the middle of both the conical groove and the first assembly platform, provides a passage for the ejector rod. The conical block, embedded within the conical groove, engages with the ejector rod to form the ejection point. The ejector rod, inserted into the top groove, transmits the ejection force to the conical block.

[0026] In this embodiment, preferably, one end of the top rod 116 is fixed to the conical block 115, and the other end of the top rod 116 is fixedly installed in the middle of the guide plate 117. The guide plate 117 is slidably disposed between the extension plates 118, and the extension plates 118 are respectively installed between the first assembly plate 119 and the first assembly table 109 by bolts.

[0027] The above scheme allows for direct transmission of the ejection action by fixing one end of the push rod to the conical block. Fixing the other end of the push rod to the center of the guide plate allows for concentrated bearing of the ejection force. The guide plate, slidably positioned between the extension plates, provides a path and space for the ejection action. The extension plates, bolted together between the first assembly plate and the first assembly platform, ensure a stable frame for the ejection mechanism.

[0028] In this embodiment, preferably, guide holes 120 are respectively provided on the upper and lower sides of the top rod 116 on the guide plate 117, and guide rods 121 are slidably installed in the guide holes 120. One end of the guide rods 121 is fixedly installed on the side of the first assembly platform 109 opposite to the first module 101.

[0029] The above-described scheme provides a sliding channel for the guide rod by creating guide holes on both the upper and lower sides of the guide plate. Sliding the guide rod within the guide holes allows for precise constraint on the direction of movement of the guide plate. Fixing one end of the guide rod to the side of the first assembly platform opposite to the first module provides a stable mounting foundation for the entire guiding system.

[0030] In this embodiment, preferably, the first assembly plate 119 has a telescopic hole 122 in the middle, and a pneumatic rod 123 is slidably installed in the telescopic hole 122. One end of the pneumatic rod 123 is connected to the side of the guide plate 117 opposite to the top rod 116, and the other end of the pneumatic rod 123 is located at the output end of the cylinder 124.

[0031] The above solution provides movement space for the pneumatic rod by creating a telescopic hole in the middle of the first assembly plate. The pneumatic rod, slidably mounted within the telescopic hole, allows power to be transmitted from the cylinder to the guide plate. Connecting one end of the pneumatic rod to the guide plate enables movement of the guide plate. Positioning the other end of the pneumatic rod at the cylinder output end allows it to receive linear power from the cylinder.

[0032] In this embodiment, preferably, the second module 104 is mounted on the second assembly platform 125 by bolts, the second assembly platform 125 is connected to the second assembly plate 126 by bolts, and the second assembly platform 125 and the second assembly plate 126 are respectively provided with through holes 127 in the middle.

[0033] The above scheme allows for the initial fixing of the fixed mold section by bolting the second module onto the second assembly platform. The final connection and fixing of the fixed mold section to the injection molding machine template is achieved by connecting the second assembly platform to the second assembly plate via bolts. By creating through holes in the middle of both the second assembly platform and the second assembly plate, an unobstructed access channel is provided for the injection head of the injection molding equipment, enabling alignment with the injection hole for injection molding.

[0034] In this embodiment, a plastic toy processing mold with a cooling function is used such that, in use, the second module 104 is fixedly mounted on the second assembly platform 125 by bolts, and the second assembly platform 125 is connected to the second assembly plate 126 by bolts. Together, they constitute the fixed mold part of the mold and are fixed on the fixed template of the injection molding machine. The first module 101 is mounted on one side of the first assembly platform 109 by bolts, and the first assembly platform 109 is connected to the first assembly plate 119, constituting the moving mold part of the mold and mounted on the moving template of the injection molding machine.

[0035] During mold closing, the injection molding machine pushes the moving mold part towards the fixed mold part. During this process, the guide rods 105 fixed at the four corners of the second module 104 will first insert into the guide holes 110 opened in the same position on the first module 101 and the first assembly table 109. The precise insertion of the guide rods 105 and the guide holes 110 guides the moving mold and the fixed mold to accurately align, ensuring the stability and centering accuracy of the mold closing and preventing module misalignment. As the mold closing action is completed, the boss 102 in the middle of the first module 101 is precisely embedded in the groove 106 in the middle of the second module 104. At the same time, the model block 103 fixed in the middle of the boss 102 is also completely embedded in the mold groove 107 opened in the groove 106. The sealed cavity formed between the outer surface of the model block 103 and the inner wall of the mold groove 107 is the molding chamber of the plastic toy.

[0036] After the mold is closed, the injection head of the injection molding machine advances, passes through the through hole 127 located between the second assembly plate 126 and the second assembly stage 125, and tightly engages with the injection hole 108 located in the middle of the mold groove 107. Molten plastic is injected under high pressure through the injection hole 108 into the molding cavity formed by the mold block 103 and the mold groove 107, filling the entire cavity space. The plastic is then pressurized, cooled, and solidified within the cavity.

[0037] To accelerate the cooling and curing process of the plastic, the cooling pipe 112 embedded in the groove 111 of the mating surface of the first module 101 and the first assembly table 109 starts to work. The cooling medium continuously circulates in the cooling pipe 112, constantly carrying away the heat absorbed by the first module 101 from the high-temperature plastic. Since the thickness of the first module 101 is the same as the diameter of the groove 111, this design makes the first module 101 have a thinner wall thickness, shortening the heat conduction distance between the cooling pipe 112 and the molding cavity, thereby achieving a rapid and uniform cooling effect. This avoids the high difficulty and high cost problems caused by the complex deep hole machining of traditional molds to bring the cooling pipe 112 close to the cavity.

[0038] After the product has cooled and solidified, the injection molding machine starts the mold opening program. The first module 101 of the moving mold part separates from the second module 104 of the fixed mold part together with the first assembly table 109. Due to the shrinkage characteristics of plastic after cooling, the molded toy product is usually wrapped on the model block 103 and moves together with the moving mold.

[0039] At this time, the cylinder 124 is activated, driving the pneumatic rod 123 at its output end to extend forward. The pneumatic rod 123 passes through the telescopic hole 122 opened in the middle of the first assembly plate 119 and pushes the guide plate 117 to move. The guide plate 117 is slidably installed between the extension plate 118, which is fixed between the first assembly plate 119 and the first assembly platform 109 by bolts. In order to ensure the smoothness and straightness of the movement of the guide plate 117, the guide rod 121, which is fixedly installed on the side of the first assembly platform 109 opposite to the first module 101, is precisely inserted into the guide holes 120 opened on the upper and lower sides of the top rod 116 on the guide plate 117, guiding the guide plate 117 to slide strictly along the axial direction of the guide rod 121.

[0040] The movement of the guide plate 117 directly drives the movement of the ejector rod 116 fixed in the middle. The ejector rod 116 then passes through the top groove 114 opened in the middle between the first assembly table 109 and the first module 101, and finally abuts against the conical block 115 embedded in the conical groove 113 in the middle of the model block 103. As the ejector rod 116 continues to move forward, the conical block 115 is pushed outward from the conical groove 113. The movement of the conical block 115 directly acts on the inside of the toy product wrapped on the model block 103, thereby overcoming the clamping force between the product and the model block 103, and smoothly and completely ejecting the molded plastic toy product from the model block 103, realizing automated demolding. The entire mold closing, injection, cooling, mold opening and demolding cycle is completed, preparing for the next injection molding.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic toy processing mold with cooling function, comprising a first module (101) and a second module (104), characterized in that: The first module (101) has a fixed boss (102) in the middle, and a model block (103) is fixed in the middle of the boss (102). The second module (104) has guide rods (105) fixed at its four corners. The second module (104) has a groove (106) in the middle, and a mold groove (107) is formed in the groove (106). An injection hole (108) is formed in the mold groove (107). The boss (102) is embedded in the groove (106), and the model block (103) is embedded in the mold groove (107). A module (101) is bolted to one side of the first assembly platform (109). Guide holes (110) are opened at the four corners of the first module (101) and the first assembly platform (109). Guide rods (105) are inserted into the guide holes (110). The mating surfaces of the first module (101) and the first assembly platform (109) are opened at the same position. Cooling pipes (112) are embedded in the pipe grooves (111). The thickness of the first module (101) is the same as the diameter of the pipe grooves (111).

2. A plastic toy processing mold with cooling function according to claim 1, characterized in that: The model block (103) has a conical groove (113) in the middle, and a top groove (114) is opened in the middle of the conical groove (113) and the middle of the first assembly platform (109). A conical block (115) is embedded in the conical groove (113), and a top rod (116) is inserted into the top groove (114).

3. A plastic toy processing mold with cooling function according to claim 2, characterized in that: One end of the top rod (116) is fixed to the conical block (115), and the other end of the top rod (116) is fixedly installed in the middle of the guide plate (117). The guide plate (117) is slidably disposed between the extension plates (118). The extension plates (118) are respectively installed between the first assembly plate (119) and the first assembly table (109) by bolts.

4. A plastic toy processing mold with cooling function according to claim 3, characterized in that: The guide plate (117) has guide holes (120) on the upper and lower sides of the top rod (116). Guide rods (121) are slidably installed in the guide holes (120). One end of the guide rods (121) is fixedly installed on the side of the first assembly table (109) opposite to the first module (101).

5. A plastic toy processing mold with cooling function according to claim 4, characterized in that: The first assembly plate (119) has a telescopic hole (122) in the middle. A pneumatic rod (123) is slidably installed in the telescopic hole (122). One end of the pneumatic rod (123) is connected to the side of the guide plate (117) opposite to the top rod (116). The other end of the pneumatic rod (123) is located at the output end of the cylinder (124).

6. A plastic toy processing mold with cooling function according to claim 1, characterized in that: The second module (104) is mounted on the second assembly platform (125) by bolts. The second assembly platform (125) is connected to the second assembly plate (126) by bolts. Through holes (127) are respectively opened in the middle of the second assembly platform (125) and the second assembly plate (126).

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