Hot runner transfer tri-plate mold mechanism

Abstract

The application relates to a hot runner three-plate mold mechanism and belongs to the technical field of molds. The hot runner three-plate mold mechanism comprises a male mold plate and a female mold plate which are butt-jointed in the vertical direction to form a molding cavity. A water gap plate, a hot runner plate and an upper fixed plate are sequentially arranged on the female mold plate. The hot runner plate is provided with a hot nozzle which penetrates the end portion to the molding cavity and a protective sleeve which is sleeved on the circumferential side of the hot nozzle. The protective sleeve of the hot nozzle is directly arranged on the hot runner plate, thereby solving the problem of arranging a specific fixed plate to fix the protective sleeve, reducing one fixed plate of the mold, saving mold processing and material costs, reducing the overall thickness and weight of the mold, and reducing the dismounting and assembling process of the protective sleeve fixed plate during mold opening and mold closing, greatly simplifying the mold opening and mold closing process and improving the production efficiency.

Description

Technical Field

[0001] This invention relates to a hot glue track to a three-plate mold mechanism, belonging to the field of mold technology. Background Technology

[0002] In existing injection molding production, three-plate hot runner injection molds are commonly used. Three-plate molds are typically used to produce parts that require high precision and complex structures. They usually include an upper mold base and a lower mold base. The upper mold base has an upper fixed plate, a hot runner plate, a sprue plate, and a mother mold plate. The hot nozzle is inside the hot runner plate. The raw material enters the hot nozzle through the injection channel of the upper fixed plate, and then enters the molding cavity from the hot nozzle.

[0003] During the mold opening and closing process, the upper fixing plate, hot runner plate, sprue plate and mother mold plate need to be constantly disassembled and reassembled. Therefore, a separate hot nozzle bushing is required to protect the hot nozzle and avoid damage. For this reason, existing molds basically fix the hot nozzle by setting a separate hot nozzle fixing plate, which makes the mold structure complex and increases material and processing costs. Summary of the Invention

[0004] The purpose of this invention is to provide a hot glue track to three-plate mold mechanism to solve the above problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a hot runner to three-plate mold mechanism, the hot runner to three-plate mold mechanism comprising a male template and a female template joined together in a vertical direction to form a molding cavity, the female template being provided with a sprue plate, a hot runner plate and an upper fixing plate in sequence, the hot runner plate being provided with a hot nozzle whose end extends into the molding cavity and a protective sleeve fitted around the hot nozzle.

[0006] Furthermore, the protective sleeve is detachably connected to the hot runner plate.

[0007] Furthermore, the protective sleeve includes a sleeve body and connecting ears disposed on the periphery of the sleeve body, the connecting ears being fixedly installed from bottom to top on the bottom of the hot runner plate by screws.

[0008] Furthermore, the upper fixing plate is provided with a filling port, which is connected to the hot nozzle and the axes of the two are not collinear.

[0009] Furthermore, an upper molding cavity is formed on the female template, a lower molding cavity is formed on the male template, and a limiting structure is formed between the male template and the female template. The limiting structure is used to limit the relative positions of the upper molding cavity and the lower molding cavity.

[0010] Furthermore, the limiting structure includes an inclined guide post and an inclined limiting groove, one of which is disposed on the female template and the other is disposed on the male template.

[0011] Furthermore, the inclined guide post is disposed on the female template, and the inclined limiting groove is disposed on the male template.

[0012] Furthermore, a fixing groove is provided through the mother template, a pressure block is provided in the fixing groove, and the inclined guide post is connected to the pressure block.

[0013] Furthermore, the pressure block is detachably connected to the mother template.

[0014] Furthermore, a threaded hole is provided in the fixing groove, and the pressure block is fixed in the fixing groove by screws.

[0015] The beneficial effects of this invention are as follows: By directly setting the protective sleeve of the hot nozzle on the hot runner plate, this application solves the problem of needing to set a specific fixing plate to fix the protective sleeve, which reduces the number of fixing plates in the mold, saving mold processing and material costs, and reducing the overall thickness and weight of the mold. At the same time, during the mold opening and closing process, the disassembly and assembly process of the protective sleeve fixing plate is reduced, which greatly simplifies the mold opening and closing process and improves production efficiency.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a hot glue track to three-plate mold mechanism according to an embodiment of this application;

[0018] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Please refer to Figures 1 to 2 This application discloses a hot runner to three-plate mold mechanism, comprising a male mold plate 10 and a female mold plate 20 vertically joined to form a molding cavity. The female mold plate 20 is sequentially provided with a sprue plate 30, a hot runner plate 40, and an upper fixing plate 50. The hot runner plate 40 is provided with a hot nozzle 41 extending into the molding cavity and a protective sleeve 42 fitted around the hot nozzle 41. By placing the protective sleeve 42 on the hot runner plate 40, the need for a fixing plate is avoided, reducing the overall thickness and weight of the hot runner to three-plate mold mechanism. Simultaneously, the length of the hot nozzle 41 can be shortened, making the mold opening and closing process simpler and faster.

[0023] In one embodiment, the protective sleeve 42 is detachably connected to the hot runner plate 40. One end of the hot nozzle 41 is fixed to the hot runner plate 40, and the other end extends from the bottom of the hot runner plate 40. The protective sleeve 42 is fitted onto the end of the hot nozzle 41 that extends out of the hot runner plate 40 and is detachably connected to the bottom of the hot runner plate 40. This provides protection for the hot nozzle 41 while facilitating replacement. The detachable connection method can be a snap-fit, threaded connection, etc., which can be set as needed and is not specifically limited here.

[0024] In one embodiment, the protective sleeve 42 includes a sleeve body and a connecting ear 421 disposed around the periphery of the sleeve body. The connecting ear 421 is fixedly mounted to the bottom of the hot runner plate 40 from bottom to top by screws 43. A connecting groove adapted to the shape of the protective sleeve 42 is formed at the bottom of the hot runner plate 40. Part of the sleeve body and the connecting ear 421 are accommodated in the connecting groove, so that the connecting ear 421 and the screw 43 do not protrude from the bottom of the hot runner plate 40, thereby avoiding affecting the tightness of the mold closing.

[0025] In one embodiment, an injection port 51 is provided on the upper fixing plate 50, and the injection port 51 is connected to the hot nozzle 41, and the axes of the two are not collinear. The injection port 51 is provided in the middle of the upper fixing plate 50, and a feed pipe (not shown) is opened in the hot runner plate 40. The feed pipe is connected to the hot nozzle 41 and the injection port 51 respectively. The axes of the injection port 51 and the hot nozzle 41 are not collinear, which allows the raw material to enter the molding cavity smoothly. The connection structure of the feed pipe is a conventional technology in the art and will not be described in detail here.

[0026] In one embodiment, an upper molding cavity is formed on the female mold 20, and a lower molding cavity is formed on the male mold 10. A limiting structure is formed between the male mold 10 and the female mold 20 to limit the relative positions of the upper and lower molding cavities. By setting the limiting structure, the relative positions of the male mold 10 and the female mold 20 can be locked after docking, thereby preventing the male mold 10 and the female mold 20 from shifting and causing misalignment of the molding cavities, thus producing defective products.

[0027] In one embodiment, the limiting structure includes an inclined guide post 22 and an inclined limiting groove 21. One of the inclined guide post 22 and the inclined limiting groove 21 is disposed on the female mold plate 20, and the other is disposed on the male mold plate 10. The inclined guide post 22 and the inclined limiting groove 21 are connected by an interlocking mechanism, which not only limits the male mold plate 10 and the female mold plate 20, ensuring the stability of the molding cavity, but also facilitates the opening and closing operations of the male mold plate 10 and the female mold plate 20, improving production efficiency.

[0028] In one embodiment, the inclined guide post 22 is disposed on the female template 20, and the inclined limiting groove 21 is disposed on the male template 10. Admittedly, in other embodiments, the inclined guide post 22 may also be disposed on the male template 10, and the inclined limiting groove 21 may be disposed on the female template 20. It can be set according to the requirements, and no specific limitation is made here.

[0029] In one embodiment, a fixing groove is provided through the female template 20, and a pressure block 23 is provided in the fixing groove. An inclined guide post 22 is connected to the pressure block 23. The shape of the fixing groove is adapted to the shape of the pressure block 23 and the inclined guide post 22. A slider groove is provided on both sides of the male template 10, and a guide block is held in the slider groove. An inclined limiting groove 21 is provided on the guide block. A pressure block 23 is provided on both sides of the female template 20, and an inclined guide post 22 is held in the pressure block 23. When the male template 10 and the female template 20 are connected, the inclined guide post 22 is gradually inserted into the inclined limiting groove 21 of the guide block, so that the guide block gradually moves closer to the middle of the male template 10, thereby making the molding cavity formed by the connection of the male template 10 and the female template 20 stable and without displacement, effectively ensuring the injection molding effect of the connector product.

[0030] In one embodiment, the pressure block 23 is detachably connected to the mother template 20. This detachable connection facilitates the fixing of the inclined guide post 22 and also makes it easier to replace the inclined guide post 22.

[0031] In one embodiment, a threaded hole is provided in the fixing groove, and the pressure block 23 is fixed in the fixing groove by screws. The upper surface of the pressure block 23 is flush with the upper surface of the mother template 20 to ensure that the mother template 20 is tightly connected to the hot runner plate 40.

[0032] In one embodiment, a sprue plate 30 is further provided between the hot runner plate 40 and the mother template 20, and the hot nozzle 41 passes through the sprue plate 30. The sprue plate 30 is prior art and will not be described in detail here.

[0033] This application solves the problem of needing a specific fixing plate to fix the protective sleeve by directly setting the protective sleeve of the hot runner plate. This reduces the number of fixing plates in the mold, saving on mold processing and material costs, as well as reducing the overall thickness and weight of the mold. When selecting a molding machine, a smaller tonnage machine can be chosen. At the same time, the disassembly and assembly process of the protective sleeve fixing plate is reduced during mold opening and closing, which greatly simplifies the mold opening and closing process and improves production efficiency.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A hot glue track to three-plate mold mechanism, characterized in that, The hot runner to three-plate mold mechanism includes a male template and a female template that are vertically joined together to form a molding cavity. The female template is provided with a sprue plate, a hot runner plate and an upper fixing plate in sequence. The hot runner plate is provided with a hot nozzle whose end extends into the molding cavity and a protective sleeve fitted around the hot nozzle.

2. The hot glue track to three-plate mold mechanism as described in claim 1, characterized in that, The protective sleeve is detachably connected to the hot runner plate.

3. The hot glue track to three-plate mold mechanism as described in claim 2, characterized in that, The protective sleeve includes a sleeve body and connecting ears disposed on the periphery of the sleeve body. The connecting ears are fixedly installed on the bottom of the hot runner plate from bottom to top by screws.

4. The hot glue track to three-plate mold mechanism as described in claim 1, characterized in that, The upper fixing plate is provided with a filling port, which is connected to the hot nozzle and the axes of the two are not collinear.

5. The hot glue track to three-plate mold mechanism as described in claim 1, characterized in that, An upper molding cavity is formed on the female template, and a lower molding cavity is formed on the male template. A limiting structure is formed between the male template and the female template, and the limiting structure is used to limit the relative position of the upper molding cavity and the lower molding cavity.

6. The hot glue track to three-plate mold mechanism as described in claim 5, characterized in that, The limiting structure includes an inclined guide post and an inclined limiting groove, one of which is disposed on the female template and the other is disposed on the male template.

7. The hot glue track to three-plate mold mechanism as described in claim 6, characterized in that, The inclined guide post is provided on the female template, and the inclined limiting groove is provided on the male template.

8. The hot glue track to three-plate mold mechanism as described in claim 7, characterized in that, A fixing groove is provided through the mother template, and a pressure block is provided in the fixing groove. The inclined guide post is connected to the pressure block.

9. The hot glue track to three-plate mold mechanism as described in claim 8, characterized in that, It can be detachably connected to the mother template.

10. The hot glue track to three-plate mold mechanism as described in claim 9, characterized in that, A threaded hole is provided in the fixing groove, and the pressure block is fixed in the fixing groove by screws.

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