A new simple hot runner mold

Abstract

The utility model discloses a novel simple hot runner mold, including cooperation's upper die body and lower die body, the top surface of upper die body is provided with injection nozzle, and the upper die body includes the upper die plate, runner shunt board and cavity board that set up in turn, the middle part of runner shunt board is provided with the main runner in the transverse direction, and the bottom surface of runner shunt board is provided with a plurality of injection hole that links with the main runner, and the bottom surface of runner shunt board is provided with small injection nozzle, the top surface of cavity board is provided with counterbore, and the bottom surface of cavity board is provided with the cavity that is in the counterbore below, and at least one communication feed hole is arranged between the bottom wall of counterbore and the top wall of cavity. The utility model discloses reasonable structure setting, and it is provided with small injection nozzle cooperation counterbore, is open type runner, not only is favorable for the material of glue directly through feed hole and enters the cavity, greatly reduces the mold cost, and also is convenient to clean residual glue material, is favorable for improving processing efficiency, reduces processing cost, and uses smoothly reliable.

Description

Technical Field

[0001] This utility model belongs to the field of injection mold technology, specifically relating to a novel simple hot runner mold. Background Technology

[0002] Hot runner molds are a common type of injection mold, offering high efficiency and eliminating the need for sprues, thus significantly reducing injection time and improving production efficiency. However, most existing hot runner molds typically use needle valve nozzles, as shown in CN202323343764.4, which describes a hot runner nozzle structure and its mold. While this can meet general usage requirements, the needle valve nozzle opens the probe during injection, allowing the material to flow out. After injection, the probe blocks the nozzle, preventing further material flow. This not only results in higher overall costs but also makes cleaning residual material difficult, significantly impacting subsequent processing efficiency and limiting its applicability. Summary of the Invention

[0003] The purpose of this invention is to provide a new type of simple hot runner mold with a reasonable structural design that helps reduce costs.

[0004] The technical solution to achieve the purpose of this utility model is a new type of simple hot runner mold, which includes a matching upper mold body and a lower mold body. The top surface of the upper mold body is provided with an injection nozzle. The upper mold body includes an upper template, a runner distribution plate and a cavity plate stacked in sequence. The top surface of the flow channel divider plate is provided with a nozzle connection hole that matches the position of the injection nozzle. The flow channel divider plate is provided with a main channel in the middle. The bottom surface of the flow channel divider plate is provided with a number of injection holes that communicate with the main channel. The bottom surface of the flow channel divider plate is provided with a small nozzle that fits into the injection hole. The top surface of the cavity plate is provided with a countersunk hole that matches the position of the small nozzle, and the bottom surface of the cavity plate is provided with a cavity below the countersunk hole. At least one interconnected glue inlet is provided between the bottom wall of the countersunk hole and the top wall of the cavity.

[0005] A further preferred embodiment is that the cavity plate is provided with a cooling water channel, and the cooling water channel is offset from the glue inlet hole.

[0006] A further preferred embodiment is that heat insulation plates are provided between the upper template and the flow channel divider plate, between the flow channel divider plate and the cavity plate, and between the small nozzle and the counterbore.

[0007] A further preferred embodiment is that the flow channel divider plate is provided with a temperature control sensor mounting hole and a heating device mounting hole with side openings.

[0008] A further preferred embodiment is that: a mold guide post is fixed on the bottom surface of the upper mold body, and a guide hole that cooperates with the mold guide post is provided on the lower mold body.

[0009] A further preferred embodiment is that the shape and size of the small nozzle are matched with the shape and size of the countersink.

[0010] A further preferred embodiment is that the diameter of the glue inlet pore is 0.05mm-0.5mm.

[0011] This utility model has positive effects: The structure of this utility model is reasonable. It is equipped with a small nozzle and a countersunk hole, which is an open flow channel. It eliminates the traditional needle valve nozzle structure. This not only facilitates the direct entry of the rubber material into the cavity through the small injection hole, greatly reducing the mold cost, but also makes it easier to clean the residual rubber material, which helps to improve processing efficiency, reduce processing costs, and is stable and reliable in use with strong applicability. Attached Figure Description

[0012] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is another structural view of the disassembled structure of this utility model; Figure 4 This is a schematic diagram of the back structure of the medium-sized cavity plate of this utility model; Figure 5 This is a front structural diagram of the medium-sized cavity plate of this utility model.

[0013] Reference numerals: 1. Injection nozzle; 2. Upper template; 3. Runner plate; 4. Cavity plate; 5. Nozzle connection hole; 6. Main runner; 7. Injection hole; 8. Small nozzle; 9. Countersunk hole; 10. Cavity; 11. Glue inlet hole; 12. Cooling water runner; 13. Heat insulation plate; 14. Temperature sensor mounting hole; 15. Heating device mounting hole; 16. Mold guide pillar. Detailed Implementation

[0014] 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. Example

[0015] See Figures 1 to 5 As shown, a novel simple hot runner mold includes a matching upper mold body and a lower mold body. The top surface of the upper mold body is provided with an injection nozzle 1. The upper mold body includes an upper template 2, a runner distribution plate 3, and a cavity plate 4 stacked sequentially. In this embodiment, the lower mold body is a conventional structure of the prior art, which is simply applied and is not an innovative structure of this technical solution. Therefore, it is not described in detail and does not affect the understanding and implementation by the technicians. At the same time, the various components of the upper mold body are positioned and fixed by screws after being stacked.

[0016] In this embodiment, the top surface of the flow channel divider plate is provided with a nozzle connection hole 5 that matches the position of the injection nozzle. The flow channel divider plate is provided with a main channel 6 in the middle. The bottom surface of the flow channel divider plate is provided with a plurality of injection holes 7 that communicate with the main channel. The bottom surface of the flow channel divider plate is provided with a small nozzle 8 that fits against the injection holes. The channel of the small nozzle and the injection hole are seamlessly combined to form a glue spraying channel for the spraying of glue. Compared with the traditional needle valve type nozzle structure, it is beneficial for the glue to directly enter the cavity through the glue inlet hole, which greatly reduces the mold cost and also facilitates the cleaning of residual glue, which helps to improve processing efficiency.

[0017] In this embodiment, the top surface of the cavity plate is provided with a countersunk hole 9 that matches the position of the small nozzle, and the bottom surface of the cavity plate is provided with a cavity 10 located below the countersunk hole; at least one communicating injection hole 11 is provided between the bottom wall of the countersunk hole and the top wall of the cavity. This structure effectively enables injection molding operations and facilitates the cleaning of residual adhesive, thereby improving production efficiency.

[0018] In this embodiment, a cooling water channel 12 is provided inside the cavity plate, and the cooling water channel is offset from the glue inlet orifice. This channel is used to connect to an external water pipe for cooling water to improve the efficiency of cooling and molding.

[0019] Furthermore, in this embodiment, heat insulation plates 13 are provided between the upper template and the flow channel divider plate, between the flow channel divider plate and the cavity plate, and between the small nozzle and the countersunk hole. This can improve the heat insulation effect.

[0020] In this embodiment, the flow channel divider plate is provided with a side-opening temperature control sensor mounting hole 14 and a heating device mounting hole 15. A temperature controller or a heating device can be installed as needed, improving ease of use and effectiveness.

[0021] Furthermore, the bottom surface of the upper mold body is fixed with a mold guide post 16, and the lower mold body is provided with guide holes that cooperate with the mold guide post. This ensures the accuracy of the upper and lower mold bodies after assembly, and guarantees stable and reliable operation.

[0022] The shape and size of the small nozzle are matched with the shape and size of the countersunk hole. The diameter of the glue inlet orifice is 0.05mm-0.5mm.

[0023] This utility model has positive effects: The structure of this utility model is reasonable. It is equipped with a small nozzle and a countersunk hole, which is an open flow channel. It eliminates the traditional needle valve nozzle structure. This not only facilitates the direct entry of the rubber material into the cavity through the small injection hole, greatly reducing the mold cost, but also makes it easier to clean the residual rubber material, which helps to improve processing efficiency, reduce processing costs, and is stable and reliable in use with strong applicability.

[0024] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural parts described in the instruction manual can also be processed without any doubt based on existing technical common sense. At the same time, the connection methods of each component adopt mature conventional methods in the existing technology, and the machinery, parts and equipment all adopt conventional models in the existing technology, so they will not be described in detail here.

[0025] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A novel, simple hot runner mold, comprising a mating upper mold body and a lower mold body, wherein an injection nozzle is provided on the top surface of the upper mold body, characterized in that: The upper mold body includes an upper template, a flow channel divider plate, and a cavity plate stacked sequentially. The top surface of the flow channel divider plate is provided with a nozzle connection hole that matches the position of the injection nozzle. The flow channel divider plate is provided with a main channel in the middle. The bottom surface of the flow channel divider plate is provided with a number of injection holes that communicate with the main channel. The bottom surface of the flow channel divider plate is provided with a small nozzle that fits into the injection hole. The top surface of the cavity plate is provided with a countersunk hole that matches the position of the small nozzle, and the bottom surface of the cavity plate is provided with a cavity below the countersunk hole. At least one interconnected glue inlet is provided between the bottom wall of the countersunk hole and the top wall of the cavity.

2. The novel simplified hot runner mold according to claim 1, characterized in that: The cavity plate is provided with a cooling water channel, which is offset from the glue inlet hole.

3. The novel simplified hot runner mold according to claim 1, characterized in that: Heat insulation plates are provided between the upper template and the flow channel divider plate, between the flow channel divider plate and the cavity plate, and between the small nozzle and the countersink.

4. The novel simplified hot runner mold according to claim 1, characterized in that: The flow channel divider plate is provided with a temperature control sensor mounting hole and a heating device mounting hole with side openings.

5. A novel simplified hot runner mold according to claim 1, characterized in that: The bottom surface of the upper mold body is fixed with a mold guide post, and the lower mold body is provided with a guide hole that cooperates with the mold guide post.

6. A novel simplified hot runner mold according to claim 1, characterized in that: The shape and size of the small nozzle are matched with the shape and size of the countersink.

7. A novel simplified hot runner mold according to claim 1, characterized in that: The diameter of the glue inlet pore is 0.05mm-0.5mm.

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