CN220482452U

CN220482452U - Injection mold for spool

Info

Publication number: CN220482452U
Application number: CN202322118393.3U
Authority: CN
Inventors: 周猛; 陈体灿
Original assignee: Freewon China Co Ltd
Current assignee: Freewon China Co Ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-02-13
Anticipated expiration: 2033-08-08

Abstract

The utility model discloses an injection mold for a spool, which relates to the technical field of injection molds and comprises a top plate, a fixed mold core, an injection molding assembly, a movable mold set and a fixed seat, wherein the top plate is covered on the upper side of the fixed mold; the injection molding assembly comprises an injection molding opening, a hot runner and a cold runner, wherein the injection molding opening is fixed on a top plate and is used as an injection molding inlet, the hot runner is arranged inside a fixed die core and is communicated with the injection molding opening, an electric heating type heating channel is adopted, the cold runner is connected with the hot runner, the whole injection molding assembly is of a disc type structure, the edge of the cold runner is provided with a discharge opening, and the cold runner is clamped into a cavity of the fixed die core. The novel I-shaped wheel injection molding process is exclusively used in, can guarantee the quality in the time of high-efficient fashioned.

Description

Injection mold for spool

Technical Field

The utility model belongs to the technical field of injection molds, and particularly relates to an injection mold for a spool.

Background

The injection mold is a tool for producing plastic products; is also a tool for endowing plastic products with complete structure and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.

The manufacturing process of the spool mainly comprises turning metal pieces, wooden pieces and injection molding pieces, wherein the metal pieces are common, and in order to reduce the weight and the cost, the manufacturing process is gradually developed to plastic materials, so that the special injection mold for the spool is involved. In order to ensure the requirement of the winding hardness of the metal wire, the thickness of the spool is larger, the existing spool injection mold is basically a solid spool or is suitable for the spool with larger thickness, but after the traditional steel is replaced by the PPS B4300G9LW-T8 BK mixed material, the strength can be ensured, and meanwhile, the wall thickness of the spool finished product is greatly reduced, so that a special injection mold is needed.

Disclosure of Invention

Based on the above-mentioned problems existing in the prior art, an object of an embodiment of the present application is to: provides an injection mold for a spool,

the application provides an injection mold for spool, which comprises a top plate, a fixed mold core, an injection molding assembly, a movable module and a fixed seat, wherein the top plate is covered on the upper side of the fixed mold; the injection molding assembly comprises an injection molding opening, a hot runner and a cold runner, wherein the injection molding opening is fixed on a top plate and is used as an injection molding inlet, the hot runner is arranged inside a fixed die core and is communicated with the injection molding opening, an electric heating type heating channel is adopted, the cold runner is connected with the hot runner, the whole injection molding assembly is of a disc type structure, the edge of the cold runner is provided with a discharge opening, and the cold runner is clamped into a cavity of the fixed die core.

Furthermore, the fixed die core is of a two-side die assembly structure, and a water cooling channel is arranged in the fixed die core and can help to cool down so as to accelerate injection molding of the spool.

Further, the movable die set comprises a die holder, two sliding blocks, a driver, a movable die, a plurality of ejection pieces, a bottom plate and an external ejection device, wherein the two sliding blocks are fixed on two sides of a fixed die core, the driver is connected with the corresponding sliding blocks, the movable die is arranged in the die holder and is correspondingly arranged with the fixed die core, the ejection pieces are connected with the movable die and the bottom plate, and the lower side of the bottom plate is connected with the ejection device.

Further, the ejection piece comprises an ejector pin and an ejection spring.

Compared with the prior art, the utility model has the following beneficial effects: through being provided with the subassembly of moulding plastics, the disk cold runner cooperation I-shaped wheel mould internal diameter size setting wherein, can realize moulding plastics fast, only can leave round runner trace, can not influence outward appearance and performance, has improved shaping efficiency and has guaranteed the quality.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a partial schematic view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

wherein, each reference sign in the figure:

1. a top plate; 2. a fixed mold; 3. a fixed mould core; 31. a water cooling channel; 4. an injection molding assembly; 41. an injection molding port; 42. a hot runner; 43. a cold runner; 5. a movable module; 51. a die holder; 52. a slide block; 53. a driver; 54. a movable mold; 55. an ejector; 551. a thimble; 552. an ejector spring; 56. an ejector plate; 57. a bottom plate; 6. a fixing seat; 7. and (5) a wear-resistant block.

Detailed Description

The present application will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram illustrating the basic structure of the present application only by way of illustration, and therefore it shows only the constitution related to the present application.

As shown in the figure, the application provides an injection mold for a spool, which comprises a top plate 1, a fixed mold 2, a fixed mold core 3, an injection molding assembly 4, a movable mold set 5 and a fixed seat 6, wherein the top plate 1 is covered on the upper side of the fixed mold 2, the fixed mold core 3 is arranged in the fixed mold 2, the injection molding assembly 4 is arranged in the fixed mold core 3, the movable mold set 5 is arranged at the lower end of the fixed mold 2, and the fixed seat 6 is fixed on two sides of the bottom of the movable mold set 5; the injection molding assembly 4 comprises an injection molding opening 41, a hot runner 42 and a cold runner 43, wherein the injection molding opening 41 is fixed on the top plate 1 and is used as an injection molding inlet, the hot runner 42 is arranged inside the fixed die core 3 and is communicated with the injection molding opening 41, an electric heating type heating channel is adopted, the cold runner 43 is connected with the hot runner 42, the whole structure is a disc type structure, the edge of the cold runner is provided with a discharge hole, and the cold runner is clamped into a cavity of the fixed die core 3.

What needs to be stated is: the injection molding assembly 4 is connected with an injection molding machine, the injection molding machine injects molten material into the hot runner 42 at a high speed, the hot runner 42 is kept in a heating state in an electric heating mode to avoid the material from being cooled and solidified in advance, and after the injection of the material is finished, a circle of gate mark is left at the glue inlet only, so that the molten material can be removed in the subsequent trimming.

The fixed die core 3 is of a two-side die assembly structure, and a water cooling channel 31 is arranged in the fixed die core to help cooling so as to accelerate injection molding of the spool.

The movable die set 5 comprises a die holder 51, two sliding blocks 52, a driver 53, a movable die 54, a plurality of ejection pieces 55, an ejection plate 56, a bottom plate 57 and an external ejection device, wherein the two sliding blocks 52 are fixed on two sides of a fixed die core 3, the driver 53 is connected with the corresponding sliding blocks 52, the movable die 54 is arranged in the die holder 51 and is correspondingly arranged with the fixed die core 3, the ejection pieces 55 are connected with the movable die 54 and the bottom plate 57, the ejection plate 56 is arranged on the ejection pieces 55, and the lower side of the bottom plate 57 is connected with the ejection device.

Ejector member 55 includes ejector pins 551 and ejector springs 552.

A plurality of wear-resisting blocks 7 are arranged between the fixed die 2 and the movable die set 5.

In actual operation, the injection molding assembly 4 injects materials into the closed fixed die core 3 at a high speed, the drivers 53 on two sides pull the corresponding sliding blocks 52 after cooling to separate the fixed die core 3, and then the movable die 54 is ejected by the external ejection device through the ejection piece 55, so that the forming spool is ejected, and demoulding is realized. The injection molding mode is efficient, because the water cooling structure can be quickly cooled, the glue inlet is small, and the finished product can only leave a circle of gate mark without influencing the appearance and the performance.

In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

While the above is directed to the preferred embodiments according to the present application, various changes and modifications may be made by the person skilled in the relevant art without departing from the scope of the application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of claims.

Claims

1. An injection mold for spool, characterized in that: comprising the following steps:

the novel plastic injection molding device comprises a top plate (1), a fixed mold (2), a fixed mold core (3), an injection molding assembly (4), a movable mold set (5) and a fixed seat (6), wherein the top plate (1) is arranged on the upper side of the fixed mold (2) in a covering mode, the fixed mold core (3) is arranged in the fixed mold (2), the injection molding assembly (4) is arranged in the fixed mold core (3), the movable mold set (5) is arranged at the lower end of the fixed mold (2), and the fixed seat (6) is fixed on two sides of the bottom of the movable mold set (5); injection molding subassembly (4) are including injection molding mouth (41), hot runner (42) and cold runner (43), wherein injection molding mouth (41) are fixed on roof (1), and as the entry of moulding plastics, hot runner (42) set up in cover half benevolence (3) inside and with injection molding mouth (41) intercommunication, adopt the form heating channel of electrical heating, cold runner (43) are connected with hot runner (42), wholly are disk structure, and the edge round is the discharge gate, card goes into in cover half benevolence (3) cavity.

2. The injection mold for spool as set forth in claim 1, wherein:

the fixed die core (3) is of a two-side die assembly structure, and a water cooling channel (31) is arranged in the fixed die core and can help to cool down so as to accelerate injection molding of the spool.

3. The injection mold for spool as claimed in claim 2, wherein:

the movable die set (5) comprises a die holder (51), two sliding blocks (52), a driver (53), a movable die (54), a plurality of ejection pieces (55), ejection plates (56), a bottom plate (57) and external ejection devices, wherein the sliding blocks (52) are fixed on two sides of a fixed die core (3), the driver (53) is connected with the corresponding sliding blocks (52), the movable die (54) is arranged in the die holder (51), is correspondingly arranged with the fixed die core (3), the ejection pieces (55) are connected with the movable die (54) and the bottom plate (57), the ejection plates (56) are arranged on the ejection pieces (55), and the lower side of the bottom plate (57) is connected with the ejection devices.

4. An injection mold for spool as defined in claim 3, wherein:

the ejection piece (55) comprises an ejector pin (551) and an ejection spring (552).

5. The injection mold for spool as set forth in claim 4, wherein:

a plurality of wear-resisting blocks (7) are arranged between the fixed die (2) and the movable die set (5).