Bent pipe core-pulling mechanism of children kettle cover mold

Abstract

The utility model belongs to the technical field of molds, and relates to a bent pipe core-pulling mechanism of a child kettle cover mold. The kettle cover forming mold comprises a kettle cover forming lower mold and a kettle cover forming upper mold, an injection molding part is arranged above the kettle cover forming upper mold, a fixed mold plate is arranged below the kettle cover forming lower mold, and a kettle cover forming sleeve and a bent pipe core-pulling assembly which penetrate through the kettle cover forming upper mold are arranged in the fixed mold plate. A kettle cover forming cavity is formed in the kettle cover forming upper die, and the kettle cover forming suite and the bent pipe core pulling assembly correspond to the kettle cover forming cavity in position and are matched with the kettle cover forming cavity in shape. Through the unique design of the bent pipe core-pulling assembly, the bent pipe part of the kettle cover can be accurately formed, it is guaranteed that the wall thickness of the bent pipe is uniform, the surface is smooth, and the sealing performance and the overall quality of the kettle cover are improved.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a bending tube core-pulling mechanism for a children's water bottle lid mold. Background Technology

[0002] In the production of children's water bottle caps, traditional mold forming methods often present numerous problems for water bottle caps with curved tube structures. For example, conventional mold forming methods struggle to accurately shape the curved tubes, leading to defects such as uneven wall thickness and rough surfaces in the curved section of the finished water bottle cap, severely affecting the sealing performance and overall quality. Furthermore, some existing molds can easily damage the shape of the water bottle cap during the part removal process after injection molding, reducing the product yield. In addition, traditional mold structures are complex and inefficient, failing to meet the demands of large-scale production. Therefore, there is an urgent need to design a curved tube core-pulling mechanism for children's water bottle cap molds that can overcome these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses a multi-workpiece kettle lid injection mold [application number: 202122324345.0], which includes a sprue plate, A plate, upper mold core, lower mold core, B plate, pad block, and ejector plate. The A plate is fixed to the bottom of the sprue plate and located above the B plate. The lower mold core is embedded in the top of the B plate, and the upper mold core is embedded in the bottom of the A plate. When the A plate descends, the upper and lower mold cores close together to form multiple parts. The injection cavity is adapted to fit the kettle cap. An ejector plate, movable vertically, is positioned at the bottom of plate B. Several ejector pins for kettle cap demolding are connected to the ejector plate. These ejector pins pass through plate B and are vertically movable within the lower mold core. The lower mold core has a sloping groove at the bottom of the corresponding injection cavity. A sloping ejector rod slides tightly within the groove. One side of the top of the sloping ejector rod has a horizontal countersunk hole connecting to the corresponding injection cavity. The bottom end of the sloping ejector rod passes through plate B and abuts against the ejector plate. Two spacers are provided and connected to the bottom of plate B on both sides of the ejector plate. However, this design still easily results in uneven wall thickness and rough surfaces in the bent section of the kettle cap during injection molding. Furthermore, the shape of the kettle cap is easily damaged during removal, reducing the product yield. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a bending tube core-pulling mechanism for a children's water bottle lid mold.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bending tube core-pulling mechanism for a children's water bottle cap mold includes a lower water bottle cap forming mold and an upper water bottle cap forming mold. An injection molded part is provided above the upper water bottle cap forming mold, and a fixed template is provided below the lower water bottle cap forming mold. A water bottle cap forming kit and a bending tube core-pulling assembly are provided inside the fixed template, passing through the upper water bottle cap forming mold. A water bottle cap forming cavity is provided inside the upper water bottle cap forming mold. The water bottle cap forming kit and the bending tube core-pulling assembly are respectively positioned and matched with the water bottle cap forming cavity.

[0007] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the bending tube core-pulling assembly includes a plurality of water bottle cap forming core-pulling cylinders disposed in a fixed template. The water bottle cap forming core-pulling cylinders pass through the upper water bottle cap forming mold and have a water bottle cap bending tube forming part inside the water bottle cap forming core-pulling cylinder.

[0008] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the water bottle cap bending tube forming part includes a water bottle cap bending tube forming cavity disposed in the water bottle cap forming core-pulling cylinder, and the water bottle cap bending tube forming cavity is located directly below the water bottle cap forming chamber.

[0009] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the water bottle cap forming kit includes a water bottle cap forming sleeve disposed in a fixed template, and the water bottle cap forming core-pulling tube passes through the water bottle cap forming sleeve.

[0010] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, an annular auxiliary forming cavity is formed between the water bottle cap forming sleeve and the water bottle cap forming core-pulling cylinder.

[0011] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the ring wall of the water bottle cap forming chamber has a number of water bottle cap anti-slip protrusion forming grooves.

[0012] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the upper mold for forming the water bottle cap has a water bottle cap forming groove, which is connected to the water bottle cap forming chamber.

[0013] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the injection molded part includes an injection main board disposed above the upper mold for forming the water bottle cap, and the upper mold for forming the water bottle cap has an injection runner.

[0014] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the fixed template is provided with a number of mold-closing alignment shafts that pass through the upper mold of the water bottle cap forming.

[0015] In the above-mentioned bending tube core-pulling mechanism of the children's water bottle cap mold, the mold closing alignment shaft and the water bottle cap forming core-pulling cylinder are staggered.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model, through its unique design of a bent tube core-pulling assembly, can precisely form the bent tube part of the kettle lid, ensuring uniform wall thickness and smooth surface of the bent tube, thereby improving the sealing performance and overall quality of the kettle lid.

[0018] 2. The core-pulling structure in this utility model does not affect the shape of the kettle lid after the core-pulling action is completed, effectively avoiding damage to the product during the part removal process and improving the product yield.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a partial structural schematic diagram of another aspect of this utility model.

[0023] Figure 4 This is a schematic diagram of the upper mold for forming a kettle lid.

[0024] In the diagram: 1. Lower mold for kettle lid forming; 2. Upper mold for kettle lid forming; 3. Injection part; 4. Fixed template; 5. Kettle lid forming kit; 6. Bending tube core-pulling assembly; 7. Kettle lid forming chamber; 8. Kettle lid bending tube forming part; 9. Kettle lid bending tube forming cavity; 10. Kettle lid forming sleeve; 11. Annular auxiliary forming cavity; 12. Kettle lid anti-slip protrusion forming groove; 13. Kettle lid plate forming groove; 14. Injection main board; 15. Injection runner; 16. Mold closing alignment shaft; 17. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, a bending tube core-pulling mechanism for a children's water bottle cap mold includes a lower water bottle cap forming mold 1 and an upper water bottle cap forming mold 2. An injection molded part 3 is provided above the upper water bottle cap forming mold 2, and a fixed template 4 is provided below the lower water bottle cap forming mold 1. A water bottle cap forming kit 5 and a bending tube core-pulling assembly 6 are provided inside the fixed template 4, which pass through the upper water bottle cap forming mold 2. A water bottle cap forming chamber 7 is provided inside the upper water bottle cap forming mold 2. The water bottle cap forming kit 5 and the bending tube core-pulling assembly 6 are respectively positioned and matched with the water bottle cap forming chamber 7.

[0027] In this embodiment, during the injection molding process, the injection molded part 3 injects molten plastic into the kettle lid molding chamber 7. With the cooperation of the kettle lid molding kit 5 and the bent tube core-pulling assembly 6, it is molded into a kettle lid with a specific shape. This structural design can ensure that the various parts of the mold fit together tightly and accurately control the molding process of the kettle lid. The purpose is to provide a basic structural framework for the entire mold core-pulling mechanism, so that the various parts work together to ensure that the injection molding process proceeds smoothly and the kettle lid is accurately molded. After the injection molding is completed, the bent tube core-pulling assembly 6 separates from the plastic part by pulling the core, thereby improving the quality of the inner wall of the plastic part.

[0028] Combination Figure 1-4 As shown, the bent tube core-pulling assembly 6 includes a plurality of kettle lid forming core-pulling cylinders 8 disposed in the fixed template 4. The kettle lid forming core-pulling cylinders 8 pass through the kettle lid forming upper mold 2, and the kettle lid forming core-pulling cylinders 8 have a kettle lid bent tube forming part 9 inside.

[0029] Specifically, during injection molding, molten plastic flows into the space where the kettle cap bend forming part 9 is located. The components are arranged as follows: the fixed template 4 fixes the position of the kettle cap forming core pull cylinder 8 so that it can accurately pass through the kettle cap forming upper mold 2. After injection molding is completed, the kettle cap forming core pull cylinder 8 is pulled out from the formed kettle cap through a specific core pulling action, realizing the demolding of the bend part. Its beneficial effect is that it can accurately form the bend part of the kettle cap. Through the setting of the core pull cylinder and the core pulling action, it ensures that the wall thickness of the bend is uniform and the surface is smooth, thus improving the quality and sealing of the kettle cap bend part.

[0030] Combination Figure 2 , Figure 4 As shown, the kettle lid bending forming part 9 includes a kettle lid bending forming cavity 10 disposed in the kettle lid forming core tube 8, and the kettle lid bending forming cavity 10 is located directly below the kettle lid forming chamber 7.

[0031] In this embodiment, during injection molding, molten plastic flows from the upper kettle lid forming chamber 7 into the lower kettle lid bending forming chamber 10, filling the bending forming chamber 10 to form the bending part of the kettle lid. This combination of position and structure makes the bending forming process more precise, ensuring a smooth and natural connection between the bending tube and the kettle lid body, and improving the overall quality of the product.

[0032] The kettle lid forming kit 5 includes a kettle lid forming sleeve 11 disposed within a fixed template 4, and the kettle lid forming core puller 8 passes through the kettle lid forming sleeve 11.

[0033] In this embodiment, the fixed template 4 also fixes the position of the kettle lid forming sleeve 11. The kettle lid forming core pull tube 8 and the kettle lid forming sleeve 11 cooperate with each other to provide specific space and shape constraints for injection molding. Its function is to work together with the bent tube core pull assembly 6 to complete the overall forming process of the kettle lid and ensure the stability and accuracy of the forming process.

[0034] Combination Figure 3 As shown, an annular auxiliary forming cavity 12 is formed between the kettle lid forming sleeve 11 and the kettle lid forming core pulling cylinder 8.

[0035] In this embodiment, during the injection molding process, molten plastic fills the annular auxiliary molding cavity 12 to assist in the molding of other parts of the kettle lid, such as some reinforcing ribs or special edge structures. The components cooperate by using the gap between the kettle lid molding sleeve 11 and the kettle lid molding core puller 8 to form the cavity, allowing the plastic to flow and be molded therein. Its beneficial effect is to further improve the overall strength and quality of the kettle lid, while also helping the plastic to flow and fill evenly in the mold and reduce molding defects.

[0036] The water bottle cap forming chamber 7 has several anti-slip raised forming grooves 13 on its annular wall.

[0037] In this embodiment, during the injection molding process, molten plastic is filled into these molding grooves 13. After cooling and molding, anti-slip protrusions are formed on the surface of the kettle lid. This fitting method is simple and direct. The anti-slip function is achieved by utilizing the ring wall structure of the molding chamber 7. Its function is to increase the friction of the kettle lid, making it easier for children to hold and improving the convenience and safety of use.

[0038] The upper mold 2 for forming the kettle lid has a kettle lid forming groove 14, which is connected to the kettle lid forming chamber 7.

[0039] In this embodiment, during injection molding, molten plastic simultaneously fills the kettle lid forming chamber 7 and the kettle lid forming groove 14, forming the connection part of the kettle lid and the lid plate in one injection molding process. The components are connected by a structural fit, allowing the plastic to flow and form in two connected spaces. The beneficial effect is to ensure the connection strength and sealing between the kettle lid and the lid plate, while reducing subsequent assembly processes and improving production efficiency.

[0040] Combination Figure 1 , Figure 4 As shown, the injection molded part 3 includes an injection main plate 15 disposed above the upper mold 2 for forming the kettle lid, and the upper mold 2 for forming the kettle lid has an injection runner 16.

[0041] In this embodiment, the injection molding main board 15 introduces molten plastic, which is then evenly distributed to the kettle cap molding chamber 7 and other parts that need to be filled through the injection molding sub-channel 16. Through the cooperation of the injection molding main board 15 and the injection molding sub-channel 16, the plastic is evenly distributed. Its function is to ensure that the plastic is evenly distributed in the mold, avoid local material shortages or uneven filling, and thus ensure the molding quality of the kettle cap.

[0042] Combination Figure 1 , Figure 2 As shown, the fixed template 4 is provided with a plurality of mold-closing alignment shafts 17 that pass through the upper mold 2 for forming the kettle lid.

[0043] In this embodiment, during the mold closing process, the mold closing alignment shaft 17 is inserted into the corresponding hole of the upper mold 2 for forming the kettle lid, ensuring that the two are accurately aligned. This matching method ensures the accuracy of the mold cavity, and its beneficial effect is to avoid inaccurate product dimensions or molding defects caused by mold closing deviation, thereby improving the product yield.

[0044] Combination Figure 2 As shown, the mold alignment shaft 17 and the kettle lid forming core-pulling cylinder 8 are staggered.

[0045] In this embodiment, this staggered arrangement ensures that the mold closing alignment shaft 17 plays its role in mold closing and positioning, while not affecting the core pulling action of the kettle cap forming core pulling cylinder 8 or its position layout in the fixed template 4 and the kettle cap forming upper mold 2. Its function is to reasonably arrange the positions of each component within the limited mold space, ensure that each function of the mold is realized normally, and further improve product quality and production stability.

[0046] The working principle of this utility model is as follows:

[0047] In actual production, the lower mold 1 and upper mold 2 for forming the kettle cap are first installed on the injection molding machine and fixed by the fixing template 4. Then, the injection molded part 3 is connected to ensure that the plastic material can be smoothly injected into the mold. During injection, the plastic material flows from the injection main plate 15 into the kettle cap forming chamber 7 through the injection runner 16. At this time, the kettle cap bending tube forming chamber 10 in the lower kettle cap forming core pull cylinder 8 and the annular auxiliary forming chamber 12 between the kettle cap forming sleeve 11 and the kettle cap forming core pull cylinder 8 are simultaneously filled with plastic material. During the filling process of the plastic material, the mold closing alignment shaft 17 ensures the accurate alignment of the upper and lower molds and prevents deviation. After the plastic material cools and solidifies, it is then processed by a specific... The demolding device removes the molded kettle lid from the mold. The ingenuity of this invention lies in the fact that, through the uniquely designed curved tube core-pulling component 6 and the matching kettle lid molding kit 5, it successfully solves the problems of insufficient precision and unstable quality faced by traditional molds when molding children's kettle lids with curved tube structures. At the same time, the functional requirements of the kettle lid are fully considered in the mold design, such as the anti-slip raised molding groove 13 and the one-piece molded kettle lid plate molding groove 14, which not only improves the product quality, but also enhances the practicality and safety of the product. In addition, the reasonable design of the injection molded part 3 and the mold closing alignment shaft 17 further improves the stability and reliability of the entire injection molding process, and greatly improves production efficiency and product quality.

[0048] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0049] Although this article frequently uses terms such as lower mold for kettle lid forming (1), upper mold for kettle lid forming (2), injection molded part (3), fixed template (4), kettle lid forming kit (5), bent tube core-pulling assembly (6), kettle lid forming chamber (7), kettle lid forming core-pulling cylinder (8), kettle lid bent tube forming part (9), kettle lid bent tube forming cavity (10), kettle lid forming sleeve (11), annular auxiliary forming cavity (12), kettle lid anti-slip protrusion forming groove (13), kettle lid plate forming groove (14), injection main board (15), injection runner (16), and mold closing alignment axis (17), the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A bending core-pulling mechanism for a children's water bottle cap mold, comprising a lower mold (1) for forming the water bottle cap and an upper mold (2) for forming the water bottle cap, characterized in that, The upper mold (2) for forming the kettle lid is provided with an injection molded part (3), and the lower mold (1) for forming the kettle lid is provided with a fixed template (4). The fixed template (4) is provided with a kettle lid forming kit (5) and a bent tube core pulling assembly (6) that pass through the upper mold (2) for forming the kettle lid. The upper mold (2) for forming the kettle lid is provided with a kettle lid forming chamber (7). The kettle lid forming kit (5) and the bent tube core pulling assembly (6) are respectively positioned and matched with the kettle lid forming chamber (7).

2. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 1, characterized in that, The bent tube core-pulling assembly (6) includes a plurality of kettle lid forming core-pulling cylinders (8) disposed in a fixed template (4). The kettle lid forming core-pulling cylinders (8) pass through the kettle lid forming upper mold (2). The kettle lid forming core-pulling cylinders (8) have a kettle lid bent tube forming part (9) inside.

3. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 2, characterized in that, The kettle lid bending forming part (9) includes a kettle lid bending forming cavity (10) disposed in the kettle lid forming core tube (8), and the kettle lid bending forming cavity (10) is located directly below the kettle lid forming chamber (7).

4. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 3, characterized in that, The kettle lid forming kit (5) includes a kettle lid forming sleeve (11) disposed in a fixed template (4), and the kettle lid forming core puller (8) passes through the kettle lid forming sleeve (11).

5. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 4, characterized in that, An annular auxiliary forming cavity (12) is formed between the kettle lid forming sleeve (11) and the kettle lid forming core pulling sleeve (8).

6. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 5, characterized in that, The water bottle cap forming chamber (7) has several anti-slip protrusion forming grooves (13) on its annular wall.

7. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 6, characterized in that, The upper mold (2) for forming the kettle lid has a kettle lid forming groove (14), which is connected to the kettle lid forming chamber (7).

8. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 7, characterized in that, The injection molded part (3) includes an injection main board (15) disposed above the upper mold (2) for forming a kettle lid, and the upper mold (2) for forming a kettle lid has an injection runner (16).

9. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 8, characterized in that, The fixed template (4) is provided with several mold alignment shafts (17) that pass through the upper mold (2) for forming the kettle lid.

10. The bending tube core-pulling mechanism of the children's water bottle lid mold according to claim 9, characterized in that, The mold alignment shaft (17) and the kettle lid forming core tube (8) are staggered.

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