Inclined top type kettle mold
The angled ejector kettle mold solves the problem of existing molds requiring heavy-duty machines by using angled ejector rods and limit block components, achieving lightweight demolding, expanding its application range, and making it suitable for production on light-duty machines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN ANBOER ELECTRICAL APPLIANCE
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
Existing kettle molds require heavy-duty machines due to the vertical setting of the lifting rod, resulting in a limited range of applications and restricting their use by some manufacturers.
The kettle mold adopts a slanted ejector design, including a slanted ejector rod and a limit block assembly. Through the cooperation of the slanted ejector assembly and the push plate, lightweight demolding is achieved, reducing the weight requirements of the machine.
This expands the applicability of molds, enabling their use on lightweight machines and improving production efficiency and applicability.
Smart Images
Figure CN224183648U_ABST
Abstract
Description
A type of angled kettle mold Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a slanted-top kettle mold. Background Technology
[0002] Currently, injection molds are widely used in industrial production as tools for manufacturing plastic products. Their main function is to give plastic products a complete structure and precise dimensions. Injection molding is a highly efficient mass production method, especially suitable for producing parts with complex shapes. Specifically, the injection molding process involves injecting molten plastic into a mold cavity under high pressure using an injection molding machine. After cooling and solidification, the molded product is obtained.
[0003] Existing injection molding technology presents several problems that urgently need to be addressed. For example, as shown in Figure 1, a kettle mold requires a heavy-duty machine for production due to the vertically positioned lifting rod 500. This limits its applicability to manufacturers lacking such machines. Therefore, a kettle mold that can solve these technical problems is urgently needed. Summary of the Invention
[0004] The purpose of this utility model is to provide a slanted top kettle mold, which is suitable for the production of lightweight machines, is easy to use and has a wide range of applications.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A slanted-top kettle mold includes an upper mold and a lower mold for forming the product. The lower mold includes a main body with a cavity. A slanted-top assembly is provided between the upper mold and the lower mold. The slanted-top assembly includes a slanted-top pressing block and a slanted-top rod, which is slantedly disposed within the cavity. A first limiting block and a second limiting block are adjacently disposed on the slanted-top rod. A first limiting groove for movably installing the slanted-top pressing block is formed between the first limiting block and the second limiting block. The lower mold also includes a push plate with a pressing block groove that mates with the slanted-top pressing block. The slanted-top pressing block is slidably mounted on the pressing block groove, which communicates with the first limiting groove. The push plate also has a second limiting groove that mates with the second limiting block, located below the pressing block groove. The second limiting block is slidably mounted on the push plate through the second limiting groove.
[0007] Preferably, two inclined push rods are symmetrically arranged and installed symmetrically in the cavity, and each inclined push rod has an inclined push pressure block on one side.
[0008] Preferably, the upper mold includes a hot runner plate and a panel, the hot runner plate is mounted on the main body and communicates with the main body, and the panel is mounted and fixed on the hot runner plate.
[0009] Preferably, the width of the inclined ejector pin gradually decreases along the direction from the upper mold to the lower mold.
[0010] The present invention relates to a sloping-top kettle mold, which has the following advantages: Through the reasonable coordination between the sloping-top assembly and the various components, the present invention effectively solves the problems existing in the prior art, reduces the weight requirements of the machine tool, expands the applicability of the mold, and has significant application value and market prospects. Attached Figure Description
[0011] Figure 1 is a schematic diagram of the inclined top kettle mold structure in the background art;
[0012] Figure 2 is a structural schematic diagram of the inclined top kettle mold in an embodiment of this utility model;
[0013] Figure 3 is a partial structural schematic diagram of the inclined top kettle mold in an embodiment of this utility model. Detailed Implementation
[0014] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0015] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0016] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0018] Referring to Figures 2 and 3, this utility model provides a slanted-top kettle mold 100, which aims to solve the problem that existing kettle molds require heavy-duty machines and have limited applicability due to the vertical setting of the lifting rod. The slanted-top kettle mold 100 includes an upper mold 100 and a lower mold 200 for forming the product. The lower mold 200 includes a main body 201, and a cavity 2011 is formed in the main body 201. A slanted-top assembly 300 is provided between the upper mold 100 and the lower mold 200. The slanted-top assembly 300 includes a slanted-top pressing block 301 and a slanted-top rod 302. The slanted-top rod 302 is inclined and is arranged in the cavity 2011. A first limiting block 303 and a second limiting block 304 are arranged adjacent to each other on the slanted-top rod 302. A first limiting groove 305 is formed between the first limiting block 303 and the second limiting block 304 for the movable installation of the slanted-top pressing block 301. The lower mold 200 also includes a push plate 202, which has a pressing groove 2021 that mates with the inclined pressing block 301. The inclined pressing block 301 is slidably mounted on the pressing groove 2021, and the pressing groove 2021 communicates with the first limiting groove 305. The push plate 202 also has a second limiting groove 2022 that mates with the second limiting block 304. The second limiting groove 2022 is located below the pressing groove 2021, and the second limiting block 304 is slidably mounted on the push plate 202 through the second limiting groove 2022. In this way, the inclined lifting assembly 300 and the coordination between the various components of the inclined-lift kettle mold 100 effectively solve the problems existing in the prior art, reduce the weight requirements of the machine tool, and expand the applicability of the mold.
[0019] In detail, the angled-ejector kettle mold 100 mainly consists of an upper mold 100 and a lower mold 200, used for product molding. The lower mold 200 includes a main body 201, within which a cavity 2011 is formed. An angled ejector assembly 300 is positioned between the upper mold 100 and the lower mold 200 to achieve demolding. The angled ejector assembly 300 consists of an angled ejector block 301 and an angled ejector rod 302 inclined within the cavity 2011. A first limiting block 303 and a second limiting block 304 are arranged adjacent to each other on the angled ejector rod 302, forming a first limiting groove 305 for the movable installation of the angled ejector block 301. The lower mold 200 also includes a push plate 202, which has a pressing groove 2021 that cooperates with the inclined pressing block 301. The inclined pressing block 301 is slidably mounted on the pressing groove 2021, and the pressing groove 2021 is connected to the first limiting groove 305. At the same time, the push plate 202 also has a second limiting groove 2022 located above the pressing groove 2021 and cooperating with the second limiting block 304. The second limiting block 304 is slidably mounted on the push plate 202 via the second limiting groove 2022. This structure makes the operation of the entire mold smoother and the demolding more precise.
[0020] Next, two symmetrically arranged angled ejector pins 302 are installed within the cavity 2011, with an angled ejector block 301 on one side of each pin 302. This symmetrical layout helps to distribute the force on the product more evenly during demolding, avoiding defects such as product deformation caused by uneven force. The angled ejector pins 302 are inclined, which is fundamentally different from traditional vertical ejector pins. It is this inclined design that allows the mold to complete effective ejection under relatively small machine weight conditions, thereby expanding the mold's applicability and enabling manufacturers lacking heavy-duty machines to use the mold for production.
[0021] Furthermore, after the injection molding process is completed, demolding is required. At this time, the push plate 202 moves upward under the drive of an external power mechanism. Through the cooperation of the pressure block groove 2021 and the inclined ejector block 301, and the interaction of the second limiting groove 2022 and the second limiting block 304, the inclined ejector rod 302 is driven to slide upward along the inclined direction. During the sliding process, the top of the inclined ejector rod 302 will evenly press against the inner wall of the kettle product. As the push plate 202 continues to rise, the inclined ejector rod 302 gradually extends, thereby smoothly ejecting the product from the cavity 2011 of the lower mold 200. Due to the inclined setting of the inclined ejector rod 302, the force required for ejection is reduced compared to that of a vertical lifting rod. Under the same ejection effect requirements, the required machine weight is significantly reduced, effectively solving the problems existing in the prior art.
[0022] In a preferred embodiment, the upper mold 100 further includes a hot runner plate 101 and a panel 102. The hot runner plate 101 is mounted on and connected to the main body 201 of the lower mold 200. This connection ensures that the molten plastic can flow smoothly from the nozzle of the injection molding machine into the hot runner plate 101, and then be precisely injected into the cavity 2011 via the hot runner plate 101. The panel 102 is mounted and fixed on the hot runner plate 101, serving to protect and support the hot runner plate 101 and other related components, while also facilitating the installation and fixation of the entire mold. Preferably, the hot runner plate 101 is equipped with a heating element and a temperature sensor. The main function of the heating element is to maintain the temperature of the molten plastic before it is injected into the cavity 2011, preventing the melt from solidifying prematurely due to excessively low temperature, ensuring the fluidity of the melt, and thus guaranteeing the molding quality of the product. The temperature sensor monitors the temperature changes within the hot runner plate 101 in real time and feeds the temperature signal back to the injection molding machine's control system so that the temperature of the hot runner can be precisely controlled, thereby achieving precise process control and improving the product qualification rate.
[0023] In another preferred embodiment, the width of the angled ejector pin 302 gradually decreases along the direction from the upper mold 100 to the lower mold 200. The purpose of this design is twofold: First, during demolding, as the angled ejector pin 302 gradually extends, its contact area with the product gradually increases, allowing for a more even distribution of the ejection force to the product and further reducing the possibility of product deformation. Second, the gradually decreasing width helps reduce the weight of the angled ejector pin 302 itself, thereby reducing the overall weight of the mold and, to some extent, reducing the weight requirements of the machine tool. Furthermore, this width variation allows for smoother movement of the angled ejector pin 302 within the cavity 2011, reducing friction with the cavity 2011 walls and extending the mold's service life.
[0024] It should be noted that before installing the angled ejector kettle mold 100 onto the injection molding machine, the mold needs to be carefully inspected and cleaned to ensure that all components are securely installed and free of debris. During installation, according to the specifications and requirements of the injection molding machine, the upper mold 100 and lower mold 200 are fixed to the moving and fixed platens of the injection molding machine, respectively. Simultaneously, the mold's levelness and alignment must be ensured to avoid mold damage or product defects caused by improper installation. After installation, the mold needs to be adjusted. During adjustment, first adjust the injection pressure, holding time, cooling time, and other process parameters of the injection molding machine to match the characteristics of the mold and the product. At the same time, the movement of the angled ejector assembly 300 should be adjusted to ensure that the rising and falling movements of the ejector plate 202 are smooth and accurate, that the angled ejector rod 302 can slide smoothly within the cavity 2011, and that the product is evenly ejected during demolding. Through repeated trial molding and adjustments, until a qualified product is produced.
[0025] The working process of the angled ejector kettle mold 100 is as follows: At the start of the injection molding process, the injection molding machine injects molten plastic under high pressure into the mold cavity 2011. The plastic quickly fills all corners of the cavity 2011. After a brief holding pressure stage to compensate for the volume shrinkage of the plastic during the cooling process, the cooling stage begins. The cooling medium flows through the mold's cooling system, carrying away the heat from the plastic in the cavity 2011, allowing the plastic to gradually solidify. When the plastic product has solidified to a certain extent, the mold opening mechanism of the injection molding machine moves the upper mold 100 upward, separating the upper mold 100 from the lower mold 200. Simultaneously, the push plate 202 moves upward under the drive of the ejection device, and the angled ejector assembly 300 begins to function. The angled ejector rod 302 slides upward along the inclined direction under the drive of the push plate 202. The angled ejector pressure block 301 and the second limiting block 304 slide within the pressure block groove 2021 and the second limiting groove 2022, respectively, ensuring the stability and accuracy of the movement of the angled ejector rod 302. As the angled ejector pin 302 extends, its tip acts evenly on the inner wall of the kettle product, smoothly ejecting the product from the cavity 2011 of the lower mold 200, completing the demolding process. After demolding, the ejection device drives the push plate 202 to reset, and the angled ejector pin 302 returns to its initial position under the action of elastic elements such as the return spring, ready for the next round of injection molding. The entire workflow is efficient and stable, thanks to the unique design of the angled ejector assembly 300, which enables the mold to successfully complete production tasks on a relatively lightweight machine.
[0026] In summary, this angled-top kettle mold 100 effectively solves the problems existing in the prior art through the angled-top assembly 300 and the reasonable cooperation between various components, reduces the weight requirements of the machine tool, expands the applicability of the mold, and has significant application value and market prospects.
[0027] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. A slanted-top kettle mold, comprising an upper mold (100) and a lower mold (200) for forming a product, the lower mold (200) comprising a main body (201) having a cavity (2011) formed therein, and a slanted-top assembly (300) provided between the upper mold (100) and the lower mold (200), characterized in that, The inclined ejector assembly (300) includes: an inclined ejector block (301); and an inclined ejector rod (302), which is inclinedly disposed within the cavity (2011). A first limiting block (303) and a second limiting block (304) are adjacently disposed on the inclined ejector rod (302). A first limiting groove (305) for the movable installation of the inclined ejector block (301) is formed between the first limiting block (303) and the second limiting block (304). The lower mold (200) further includes a push plate (202), which is provided with a groove that connects to the inclined ejector block (301). 301) The pressure block groove (2021) is installed in conjunction with the inclined top pressure block (301), and the pressure block groove (2021) is slidably installed on the pressure block groove (2021). The pressure block groove (2021) is connected to the first limiting groove (305). The push plate (202) is also provided with a second limiting groove (2022) that is installed in conjunction with the second limiting block (304). The second limiting groove (2022) is located below the pressure block groove (2021), and the second limiting block (304) is slidably installed on the push plate (202) through the second limiting groove (2022).
2. The angled-top kettle mold according to claim 1, characterized in that, Two inclined push rods (302) are symmetrically arranged and installed symmetrically in the cavity (2011). Each inclined push rod (302) has an inclined push block (301) on one side.
3. The angled-top kettle mold according to claim 1, characterized in that, The upper mold (100) includes a hot runner plate (101) and a panel (102). The hot runner plate (101) is mounted on the main body (201) and communicates with the main body (201). The panel (102) is mounted and fixed on the hot runner plate (101).
4. The angled-top kettle mold according to claim 1, characterized in that, The width of the inclined ejector rod (302) gradually decreases along the direction from the upper mold (100) to the lower mold (200).