Novel mold of side gate hot runner

Abstract

The utility model discloses a novel mold of a side gate hot runner, and relates to the technical field of medical molds. Comprising an upper die, the upper die is provided with an upper fixing plate and a plate A which are connected, a fixed die core is arranged in a groove body of the plate A, a fixed die insert core is fixed in the fixed die core, and a cavity of the fixed die insert core is matched with a product in shape; the injection nozzle assembly sequentially penetrates through the upper fixing plate and the plate A and extends into the fixed mold core, and an injection nozzle structure of the injection nozzle assembly penetrates through the side wall of the fixed mold core and is connected with the fixed mold insert; the injection nozzle assembly is provided with an injection nozzle heater and an injection nozzle seat, the upper portion of the injection nozzle seat extends into the injection nozzle heater, and the lower portion of the injection nozzle seat is connected with the injection nozzle structure. Compared with a submarine gate, the side gate design of the mold can more effectively control the generation of material scraps; the injection nozzle assembly (hot runner system) ensures that the melt is not solidified too early at the sprue, so that sprue residues and waste are greatly reduced, and the subsequent cleaning workload and material waste are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical molds, and particularly relates to a new mold for a side gate hot runner. Background Art

[0002] The hot runner system plays an indispensable role in the medical manufacturing industry. Especially in industrialized countries and regions, the production activities of hot runner molds are particularly active, and their application ratio is also continuously increasing. Many small mold manufacturers with less than 10 employees have also stepped into the production field of hot runner molds.

[0003] The existing molds do not effectively solve the problem of material chips at the submarine gate. Then, during mass production, the situation of material chips mixing into the products may occur frequently, resulting in unstable product quality and even an increase in the product rejection rate; it may not be able to ensure the stability of mass production, leading to production interruption, large fluctuations in product quality, and even affecting the efficiency of the entire production line.

[0004] Moreover, the operation of some hot runner molds is cumbersome and may require multiple people to cooperate to complete production, which not only increases the labor cost. If the mold design and operation are improper, it may increase the risk of mold damage, resulting in production interruption, increased maintenance costs, and even the need to replace the entire mold, causing huge losses to production. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a new mold for a side gate hot runner, which effectively improves the product output, ensures the stability of product quality, reduces the labor consumption, and can greatly reduce the material chips remaining at the gate.

[0006] To achieve the above purpose, the present application proposes a new mold for a side gate hot runner, including an upper mold. The upper mold has a connected upper fixing plate and an A plate. A fixed mold core is arranged in the groove of the A plate, and a fixed mold insert is fixed in the fixed mold core. The cavity of the fixed mold insert matches the shape of the product; the nozzle assembly sequentially passes through the upper fixing plate and the A plate and extends into the fixed mold core, and the nozzle structure of the nozzle assembly passes through the side wall of the fixed mold core and is connected to the fixed mold insert.

[0007] Further, the nozzle structure is fixed on the fixed mold core through a star stop ring.

[0008] Further, a ceramic heat insulation sleeve is sleeved on the outer periphery of the nozzle structure, and a spring is arranged between the ceramic heat insulation sleeve and the side wall of the nozzle structure.

[0009] Further, a packaging plate is arranged below the nozzle assembly, and the packaging plate is fixed on the fixed mold core through screws.

[0010] Further, a positioning ring is connected to the top of the nozzle assembly, and the positioning ring is clamped in the groove of the upper fixing plate.

[0011] Further, the nozzle assembly has a nozzle heater and a nozzle base. The upper part of the nozzle base extends into the nozzle heater, and the lower part of the nozzle base is connected to the nozzle structure.

[0012] Further, the nozzle heater is snap - fitted into the positioning groove of the A - plate.

[0013] Further, it also includes a lower mold, and the lower mold has a B - plate, square iron, ejector plate, ejector bottom plate and lower fixing plate arranged in sequence from top to bottom.

[0014] As a further improvement, the B - plate is provided with cavities for avoiding the encapsulation plate, screws and the fixed mold insert.

[0015] As a further improvement, the side wall of the fixed mold insert is provided with a groove for accommodating the ceramic heat insulation sleeve and the spring.

[0016] The above technical solutions adopted by the present utility model, compared with the prior art, have the following advantages: Compared with the submarine gate, the side gate design of this mold can more effectively control the generation of scraps; the nozzle assembly (hot runner system) ensures that the melt will not solidify prematurely at the gate, greatly reducing the gate residue and waste, and reducing the subsequent cleaning workload and material waste.

[0017] With this mold, mass production can be carried out stably. The side gate design also reduces the influence of the gate mark on the product appearance, improves the overall quality and aesthetics of the product, and does not require multiple workers, reducing the labor cost and will not damage the mold; the development of such a mold can greatly improve the production efficiency. Description of the Drawings

[0018] Figure 1 It is an exploded view of a new mold with a side gate hot runner;

[0019] Figure 2 It is a cross - sectional view of the upper mold of a new mold with a side gate hot runner;

[0020] Figure 3 It is a schematic structural diagram of the upper mold of a new mold with a side gate hot runner;

[0021] Figure 4 It is a schematic structural diagram of the nozzle assembly (hot runner);

[0022] Wherein: 1. Locating ring, 2. Nozzle assembly, 21. Nozzle heater, 22. Nozzle base, 23. Nozzle structure, 3. Upper fixing plate, 4. A - plate, 5. B - plate, 6. Square iron, 7. Ejector plate, 8. Ejector bottom plate, 9. Lower fixing plate, 10. Fixed mold insert, 11. Fixed mold core, 12. Star - shaped stop ring, 13. Spring, 14. Ceramic heat insulation sleeve, 15. Encapsulation plate. Detailed Description of the Invention

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clear and understandable, the following further details this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0026] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Please refer to Figures 1-4 , this embodiment provides a new type of mold for a side gate hot runner, including an upper mold, a lower mold and a nozzle assembly. The improvement points of this mold are concentrated on the upper mold, and the lower mold is of a traditional structure; the nozzle assembly includes a nozzle heater, a nozzle seat and a nozzle structure. The upper part of the nozzle seat extends into the nozzle heater, and the lower part of the nozzle seat is connected to the nozzle structure;

[0028] The upper mold has an upper fixing plate and an A plate connected to each other. A fixed mold core is provided in the groove of the A plate, and a fixed mold insert is fixed in the fixed mold core. The cavity of the fixed mold insert matches the shape of the product; the nozzle assembly sequentially passes through the upper fixing plate and the A plate and extends into the fixed mold core. The nozzle structure passes through the side wall of the fixed mold core and is connected to the fixed mold insert. The nozzle is fixed through the fixed mold core. This fixing does not use the nozzle seat to fix the nozzle, so the thermal expansion of the nozzle seat will not affect the position of the nozzle.

[0029] In this embodiment, the nozzle structure is firmly fixed on the stationary mold core through a star-shaped stop ring.

[0030] In this embodiment, in order to avoid damage to components caused by heat transfer, a ceramic heat insulation sleeve is sleeved on the outer periphery of the nozzle structure, and a spring is provided between the ceramic heat insulation sleeve and the side wall of the nozzle structure to facilitate disassembly.

[0031] In this embodiment, a packaging board is provided below the nozzle assembly, and the packaging board is fixed on the stationary mold core by screws; after molding, the packaging board is removed first, and then the product is sheared.

[0032] In this embodiment, in order to make the installation of the nozzle assembly stable, a positioning ring is connected to the top of the nozzle assembly, and the positioning ring is clamped in the groove of the upper fixing plate, and the nozzle heater is clamped in the positioning groove of the A plate.

[0033] In this embodiment, the lower mold has a B plate, square iron, ejector plate, ejector bottom plate and lower fixing plate arranged in sequence from top to bottom. A cavity for avoiding the packaging board, screws and the stationary mold core is formed on the B plate.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A new type of mold for a side gate hot runner, comprising an upper mold, wherein the upper mold has an upper fixed plate and an A plate connected to each other, characterized in that: A fixed mold core is arranged in the groove body of the A plate, and a fixed mold insert is fixed in the fixed mold core, and the shape of the fixed mold insert matches the shape of the product; the nozzle assembly passes through the upper fixed plate and the A plate in sequence and extends into the fixed mold core, and the nozzle structure of the nozzle assembly passes through the side wall of the fixed mold core and is connected to the fixed mold insert.

2. According to the new type of mold with side gate hot runner as claimed in claim 1, it is characterized in that: The nozzle structure is fixed on the fixed mold core through a star-shaped retaining ring.

3. According to the new type of mold with side gate hot runner as claimed in claim 1, it is characterized in that: A ceramic heat-insulating sleeve is sleeved on the outer periphery of the nozzle structure, and a spring is arranged between the ceramic heat-insulating sleeve and the side wall of the nozzle structure.

4. According to the new type of mold with side gate hot runner as claimed in claim 1, it is characterized in that: A packaging plate is provided below the nozzle assembly and is fixed on the fixed mold core by screws.

5. According to the new type of mold with side gate hot runner as claimed in claim 1, it is characterized in that: A positioning ring is connected to the top of the nozzle assembly, and the positioning ring is clamped in the groove of the upper fixing plate.

6. According to the new type of mold with side gate hot runner as claimed in claim 1, it is characterized in that: The nozzle assembly comprises a nozzle heater and a nozzle seat. The upper portion of the nozzle seat extends into the nozzle heater, and the lower portion of the nozzle seat is connected to the nozzle structure.

7. A new type of mold with side gate hot runner according to claim 6, characterized in that: The nozzle heater is clamped in the positioning groove of the A plate.

8. According to the new type of mold with side gate hot runner as claimed in claim 1, it is characterized in that: It also includes a lower mold, which has a B plate, a square iron, an ejector plate, an ejector bottom plate and a lower fixed plate arranged in sequence from top to bottom.

9. A new type of mold with side gate hot runner according to claim 8, characterized in that: The B plate is provided with a cavity for accommodating the packaging plate, screws and the fixed mold core.

10. The new mold with side gate hot runner according to claim 3, characterized in that: The side wall of the fixed mold core is provided with a groove for accommodating the ceramic heat insulation sleeve and the spring.

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