Mould sprue bush convenient to use

Abstract

The utility model provides a convenient-to-use mould sprue bush which comprises a sprue head, a liquid injection pipe is detachably arranged at the bottom of the sprue head, a liquid flowing channel is arranged in the liquid injection pipe, a pouring table is arranged at the top of the sprue head, a liquid injection groove is arranged in the middle of the pouring table, and a liquid injection hole is arranged in the middle of the inner bottom wall of the liquid injection groove. A ventilation groove is annularly formed in the surface of the top of the pouring table along the central axis, an embedded groove transversely penetrating through the liquid injection hole is formed in the surface of the top of the pouring table, an embedded plate is embedded in the embedded groove, a liquid partition plate is arranged in the middle of the embedded plate, extending plates are arranged on the two sides of the liquid partition plate, a connecting hole is formed in the surface of the bottom of the pouring nozzle head, and a connector is arranged on the top of the liquid injection pipe. The pouring hole is separated through the liquid separation plate and the extension plate to change the thickness of the pipe wall of the pouring hole, the cooling speed of the pouring nozzle head is increased through the ventilation groove, materials injected into the liquid flowing channel are rapidly solidified, wiredrawing is prevented from being formed at the tail end when a product is formed, and waste remaining in the liquid flowing channel can be conveniently cleaned through the detachable structure.

Description

Technical Field

[0001] The utility model relates to the technical field of a mold sprue sleeve, in particular to a mold sprue sleeve that is easy to use. Background Art

[0002] The sprue bushing is a bushing used to connect the injection molding machine and the injection mold. It is also called a nozzle. It is a flow channel component that allows the molten hot rubber to flow from the injection molding machine nozzle to the inside of the mold cavity. In the injection mold, since the main flow channel has to contact with the high-temperature rubber and the injection molding machine nozzle, the main flow channel part of the mold is usually designed as a detachable and replaceable sprue bushing.

[0003] Due to the high temperature at the nozzle, the existing sprue bushings all have the problem of slow cooling of the molten material near the injection hole. If the cooling time is not sufficient, thread-like rubber will be pulled out when the mold is opened, forming rubber threads on the flow channel at the contact position between the injection molding machine nozzle and the sprue bushing injection hole. Especially when injecting products made of materials such as PP and PET, it is easier to produce thin and long rubber threads on the flow channel, and such rubber threads will adhere to the surface of the product during the product removal process, seriously affecting the product appearance and causing the product to be scrapped. At present, the method of extending the cooling time is often used to eliminate the generation of rubber threads, so that the injection molding cycle is greatly lengthened, resulting in low production efficiency and increased injection molding costs; and because the sprue head and the injection pipe of the existing sprue bushing are an integrated structure, it is inconvenient to clean the inside when the injection hole and the flow channel are blocked. Utility Model Content

[0004] The utility model provides a mold sprue sleeve that is easy to use, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mold gate sleeve that is easy to use, including a gate head, a detachable liquid injection tube is provided at the bottom of the gate head, a liquid flow channel is provided in the liquid injection tube, a pouring table is provided on the top of the gate head, a liquid injection groove is provided in the middle of the pouring table, a liquid injection hole is provided in the middle of the bottom wall of the liquid injection groove, a ventilation groove is provided in a ring shape along the central axis on the top surface of the pouring table, an embedded groove is provided on the top surface of the pouring table that crosses the liquid injection hole, an embedded plate is embedded in the embedded groove, a liquid partition plate is provided in the middle of the embedded plate, extension plates are provided on both sides of the liquid partition plate, a connecting hole is provided on the bottom surface of the gate head, and a connecting head is provided on the top of the liquid injection tube.

[0006] Preferably, the connecting head is threadedly connected to the connecting hole.

[0007] Preferably, a stabilizing groove is provided at the opening of the connecting hole, a stabilizing plate is provided between the injection tube and the connecting head, and the stabilizing plate is embedded in the stabilizing groove.

[0008] Preferably, the liquid flow channel is communicated with the liquid injection hole, and the liquid flow channel is a conical structure with a diameter gradually increasing from bottom to top.

[0009] Beneficial Effects

[0010] The above one or more technical solutions in a mold sprue bushing that is easy to use provided by the embodiment of the utility model have at least one of the following technical effects:

[0011] Through the above technical scheme, the pouring hole is separated by the partition plate and the extension plate, so as to change the wall thickness of the pouring hole, and the cooling speed of the pouring head is accelerated through the ventilation groove, so that the material injected into the liquid flow channel is quickly cooled and solidified, avoiding the formation of wire drawing at the end when the product is formed, and the detachable structure makes it easy to remove the injection tube and clean the waste remaining in the liquid flow channel; the utility model makes the injection molded product perfect and high in quality; and the structure is simple, easy to install, easy to replace, easy to clean, and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the pouring head of the utility model when viewed from above;

[0016] Figure 5 This is a schematic diagram of the structure of the liquid injection tube of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the embedded plate of the utility model;

[0018] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0019] 1. Casting head; 2. Liquid injection pipe; 3. Liquid flow channel; 4. Pouring table; 5. Liquid injection groove; 6. Liquid injection hole; 7. Ventilation groove; 8. Embedded groove; 9. Embedded plate; 10. Liquid partition plate; 11. Extension plate; 12. Connection hole; 13. Connector; 14. Stabilizing groove; 15. Stabilizing plate. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-6 As shown, it is a schematic structural diagram of a mold gate sleeve that is easy to use in a preferred embodiment of the utility model;

[0024] In this embodiment, a pouring head 1 is included, and a detachable liquid injection tube 2 is provided at the bottom of the pouring head 1. The detachable structure makes it easy to disassemble the pouring head 1 and the liquid injection tube 2 for cleaning. The liquid injection tube 2 is a cylindrical structure, and a liquid flow channel 3 is provided in the liquid injection tube 2. A pouring table 4 is provided on the top of the pouring head 1, and a liquid injection groove 5 is provided in the middle of the pouring table 4. The liquid injection groove 5 is an arc-shaped sinking structure, and a liquid injection hole 6 is provided in the middle of the bottom wall of the liquid injection groove 5. The top surface of the pouring table 4 is provided with a ventilation groove 7 in a ring shape along the central axis. The ventilation groove 7 increases the air contact area of ​​the pouring head 1, so that when the air enters the ventilation groove 7, the heat in the ventilation groove 7 is taken away, thereby accelerating the cooling speed of the pouring head 1, thereby accelerating the liquid injection hole 6. The cooling and solidification speed of the injection melt, the top surface of the casting table 4 is provided with an embedding groove 8 which crosses the injection hole 6, the embedding groove 8 is embedded with an embedding plate 9, the middle of the embedding plate 9 is provided with a liquid partition plate 10, and extension plates 11 are provided on both sides of the liquid partition plate 10, and a cross is formed between the extension plate 11 and the liquid partition plate 10, the injection hole 6 is separated by the liquid partition plate 10 and the extension plate 11, the tube wall thickness at the injection hole 6 is changed, and the injection melt is diverted, so that the injection melt injected into the injection hole 6 and the liquid flow channel 3 is quickly solidified, avoiding the formation of wire drawing at the end when the product is formed, and the injection molded product is perfect and of high quality, the bottom surface of the casting head 1 is provided with a connecting hole 12, and the top of the injection tube 2 is provided with a connector 13.

[0025] In this embodiment, the connector 13 is threadedly connected to the connecting hole 12. This structure enables the injection pipe 2 to be threadedly connected to the pouring head 1, making it easy to disassemble the pouring head 1 and the injection pipe 2 for cleaning.

[0026] In this embodiment, a stabilizing groove 14 is provided at the opening of the connecting hole 12, and a stabilizing plate 15 is provided between the injection tube 2 and the connecting head 13. The stabilizing plate 15 is embedded in the stabilizing groove 14. The stabilizing plate 15 is embedded in the stabilizing groove 14 to support and stabilize the injection tube 2, thereby improving the stability of the connection between the pouring head 1 and the injection tube 2.

[0027] In this embodiment, the liquid flow channel 3 is connected to the injection hole 6. The liquid flow channel 3 is a conical structure with a diameter gradually increasing from bottom to top. The liquid flow channel 3 is used to circulate the injection melt. The injection melt is injected into the liquid flow channel 3 from the injection hole 6.

[0028] The utility model provides a mold gate sleeve that is easy to use. Its installation method, connection method or setting method are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented.

[0029] Technologies not described in detail in the present invention are all well-known technologies. Those skilled in the art can easily implement the present invention based on understanding this specification, and the contents shown in the drawings are part of this specification.

[0030] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A mold sprue bushing that is easy to use, comprising a sprue head (1), characterized in that: The bottom of the pouring head (1) is provided with a detachable injection pipe (2), a liquid flow channel (3) is provided in the injection pipe (2), a pouring platform (4) is provided at the top of the pouring head (1), a liquid injection groove (5) is provided in the middle of the pouring platform (4), a liquid injection hole (6) is provided in the middle of the bottom wall of the liquid injection groove (5), a ventilation groove (7) is provided in the shape of a ring along the central axis on the top surface of the pouring platform (4), an embedding groove (8) is provided on the top surface of the pouring platform (4) and crosses the liquid injection hole (6), an embedding plate (9) is embedded in the embedding groove (8), a liquid partition plate (10) is provided in the middle of the embedding plate (9), and extension plates (11) are provided on both sides of the liquid partition plate (10), a connecting hole (12) is provided on the bottom surface of the pouring head (1), and a connecting head (13) is provided on the top of the injection pipe (2).

2. A convenient-to-use mold sprue bushing according to claim 1, characterized in that: The connecting head (13) is threadedly connected to the connecting hole (12).

3. A convenient-to-use mold sprue bushing according to claim 1, characterized in that: A stabilizing groove (14) is provided at the opening of the connecting hole (12), a stabilizing plate (15) is provided between the injection pipe (2) and the connecting head (13), and the stabilizing plate (15) is embedded in the stabilizing groove (14).

4. A convenient-to-use mold sprue bushing according to claim 1, characterized in that: The liquid flow channel (3) is in communication with the liquid injection hole (6), and the liquid flow channel (3) is a conical structure with a diameter gradually increasing from the bottom to the top.

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