CN218505150U

CN218505150U - Mould structure of three-plate mould hot runner

Info

Publication number: CN218505150U
Application number: CN202222810043.9U
Authority: CN
Inventors: 杨松; 黄小鹏; 陈海滨
Original assignee: Dongguan Haorun Precision Electronic Co ltd
Current assignee: Dongguan Haorun Precision Electronic Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-02-21
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to a mould structure of a three-plate mould hot runner, which comprises a mould blank hot runner plate, a mould blank stripper plate, a mould blank A plate and a hot runner system, wherein the hot runner system is provided with a plurality of groups of hot nozzles protruding towards the mould blank stripper plate, and also comprises a hot nozzle insert and a cooling water path insert, and the hot nozzle insert is fixed on the mould blank hot runner plate and is sleeved with the hot nozzles; the guide through hole on the die blank stripping plate guides and limits the hot nozzle insert during relative motion; the cooling water path insert is fixed on the die blank stripping plate and provided with a cooling water path surrounding the guide through hole, and a discharge hole is further formed in the cooling water path insert and is used for being communicated with the hot nozzle in a butt joint mode. The hot nozzle insert can protect the hot nozzle from being damaged by insertion in the moving process, and the service life is prolonged; the cooling water path insert can overcome the defect that the water path cannot be increased due to a three-plate mold structure, the cooling water path insert can quickly take away heat of the hot nozzle, casting and nozzle blocking conditions in the injection molding process are improved, the production efficiency of the mold is improved, and the industrial production needs are met.

Description

Mould structure of three-plate mould hot runner

Technical Field

The utility model belongs to the technical field of the injection mold technique and specifically relates to a mould structure of three board mould hot runner is related to.

Background

In the prior art, the mold structure of the three-plate mold hot runner has the problems that the design of a mold is difficult to cool a water channel due to the movement of the runner plate and the stripper plate, the temperature near a hot nozzle is difficult to control, the injection molding aging is influenced, and meanwhile, the hot nozzle is easy to insert due to the relative movement between the runner plate and the stripper plate, so that the service life is influenced.

Disclosure of Invention

An object of the utility model is to provide a three board mould hot runner's mould structure solves above-mentioned technical problem well, improves the production efficiency and the life of mould.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the mould structure of the three-plate mould hot runner comprises a mould blank hot runner plate, a mould blank stripper plate and a mould blank A plate, wherein a hot runner system is assembled on the mould blank hot runner plate, the hot runner system is provided with a plurality of groups of hot nozzles protruding towards the mould blank stripper plate, a hot nozzle insert and a cooling water path insert, the hot nozzle insert is fixed on the mould blank hot runner plate and is sleeved with the hot nozzles, a guide through hole is arranged on the mould blank stripper plate, the shape and the size of the guide through hole are matched with those of the hot nozzle insert, and the guide through hole guides and limits the hot nozzle insert when the mould blank hot runner plate and the mould blank stripper plate move relatively; the cooling water path insert is fixed on the mold blank stripping plate and provided with a cooling water path surrounding the guide through hole, and a discharge hole is further formed in the cooling water path insert and is communicated with the hot nozzle in a butt joint mode.

The scheme is further that the hot nozzle insert and the cooling water path insert are matched in a one-to-one mode, and the hot nozzle insert and the cooling water path insert are matched to correspond to a set of hot nozzles and are designed to be inserted independently, so that each hot nozzle is cooled more balance, and the injection molding effect is improved.

The hot nozzle insert is a cross-shaped body, and the upper end of the hot nozzle insert is attached to the mold blank hot runner plate and is locked and fixed through a screw; the lower end of the hot nozzle insert protrudes towards the mold blank stripping plate, the lower end of the hot nozzle insert is provided with a downward extending column which extends along with the hot nozzle, and the hot nozzle penetrates through the interior of the hot nozzle insert and the downward extending column and then is in butt joint communication with a discharge hole of the cooling water path insert; the lower column is inserted into a discharge hole of the cooling waterway insert. The structure can protect the hot nozzle, obtain better motion positioning and guiding and is beneficial to cooling.

Above-mentioned scheme is further, the post that descends is the cone, and the aperture that the lower extreme external diameter of post that descends is less than the discharge opening helps the post that descends to insert the discharge opening that the cooling water route was inserted, obtains leading just between two parties and be close to the efficiency in cooling water route, promotes the cooling effect, is favorable to controlling near hot mouth temperature, makes it reach suitable operating temperature.

According to the scheme, the upper end of the cooling waterway insert is attached to the mold blank stripper plate and is locked and fixed through the screw, the mold blank A plate is provided with a groove facing the mold blank stripper plate, and the groove and the mold blank stripper plate surround and cover the cooling waterway insert.

The hot runner system is further embedded into a preset accommodating groove in the mold blank hot runner plate from top to bottom, a mold blank panel is assembled on the upper side face of the mold blank hot runner plate, the mold blank panel covers the hot runner system and is provided with a feeding hole, and a feeding nozzle on the hot runner system is exposed through the feeding hole.

The hot nozzle insert and the cooling water path insert are added, so that the hot nozzle insert can protect the hot nozzle from being damaged by insertion in the moving process, and the service life is prolonged; the cooling water path insert can solve the defect that the water path cannot be increased due to a three-plate mold structure, the circulating cooling water path is designed in the cooling water path insert, heat of the hot nozzle is taken away quickly, the temperature near the hot nozzle reaches proper temperature, each hot nozzle is cooled and balanced, casting and nozzle blocking conditions in the injection molding process are improved, cooling efficiency is improved, the forming period is shortened, the reject ratio of products is reduced, the production efficiency of molds is improved, and the industrial production needs are met.

Description of the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a partial structural schematic diagram of the embodiment of fig. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 2, the structure schematic diagram of the preferred embodiment of the present invention is shown, the present invention relates to a mold structure of three-plate mold hot runner, including a mold blank hot runner plate 1, a mold blank stripper plate 2 and a mold blank a plate 3, a hot runner system 4 is assembled on the mold blank hot runner plate 1, the hot runner system 4 has a plurality of groups of hot nozzles 41 protruding towards the mold blank stripper plate 2, and further includes a hot nozzle insert 5 and a cooling water path insert 6, the hot nozzle insert 5 is fixed on the mold blank hot runner plate 1 and is sleeved with the hot nozzles 41, the mold blank stripper plate 2 is provided with a guiding through hole 21, the shape and size of the guiding through hole 21 are matched with the hot nozzle insert 5, when the mold blank hot runner plate 1 and the mold blank stripper plate 2 move relatively, the guiding through hole 21 guides and limits the hot nozzle insert 5, and further guides the hot nozzle 41, so as to supply material and inject material; the hot nozzle insert 5 and the hot nozzle 41 are relatively fixed together, and the hot nozzle insert 5 can protect the hot nozzle 41 from being damaged by insertion in the moving process, so that the service life is prolonged. The cooling water channel insert 6 is fixed on the mold blank stripping plate 2 and is provided with the cooling water channel 61 surrounding the guide through hole 21, so that the defect that the water channel cannot be increased due to a three-plate mold structure can be overcome, the structure is optimized, and the injection molding effect is improved. The cooling water channel insert 6 is further provided with a discharge hole 62, and the discharge hole 62 is in butt joint communication with the hot nozzle 41. The heat of hot mouth can be taken away fast to the recirculated cooling water of cooling water route 61 for near hot mouth temperature reaches suitable temperature, promotes cooling efficiency, shortens the shaping cycle, reduces the defective rate of product, improves the production efficiency of mould.

In this embodiment, the hot mouth insert 5 and the cooling water path insert 6 are matched in a one-to-one manner, and one hot mouth insert 5 and one cooling water path insert 6 are matched to correspond to one set of hot mouths 41, and the design of the insert is independent, so that each hot mouth is cooled more balanced, the casting and mouth blocking conditions in the injection molding process are improved, and the production efficiency of the mold is improved.

In the embodiment shown in fig. 1 and 2, the hot nozzle insert 5 is a cross-shaped body, and the guide through hole 21 is also a cross-shaped body, so that the hot nozzle insert has better directionality, and the guide and limit functions of the lifting motion are realized. The upper end of the hot nozzle insert 5 is attached to the mold blank hot runner plate 1 and is locked and fixed through a screw; the lower end of the hot nozzle insert 5 protrudes towards the mold blank stripping plate 2, the lower end of the hot nozzle insert 5 is provided with a downward extending column 51 which extends along with the hot nozzle 41, and the hot nozzle 41 penetrates through the interior of the hot nozzle insert 5 and the downward extending column 51 and then is in butt joint communication with a discharge hole 62 of the cooling water channel insert 6. The post 51 that descends inserts the discharge opening 62 that cooling water route inserted 6, furtherly, the post 51 that descends is the cone, and the lower extreme external diameter of the post 51 that descends is less than the aperture of discharge opening 62 helps the post that descends to insert the discharge opening that cooling water route inserted, obtains leading well between two parties and is close to the efficiency in cooling water route, promotes the cooling effect, is favorable to controlling near hot mouth temperature, makes it reach suitable operating temperature.

In this embodiment, the upper end of the cooling waterway insert 6 is attached to the mold blank stripper plate 2 and is locked and fixed by a screw, the mold blank a plate 3 is provided with a groove 31 facing the mold blank stripper plate 2, and the groove 31 and the mold blank stripper plate 2 surround and cover the cooling waterway insert 6, so that the relationship between the components with better quality is obtained, the cooling speed of the injection molding product is increased, and the working efficiency is improved.

In this embodiment, the hot runner system 4 is embedded into a preset accommodating groove 11 on the mold blank hot runner plate 1 from top to bottom, a mold blank panel 7 is assembled on the upper side surface of the mold blank hot runner plate 1, the mold blank panel 7 covers the hot runner system 4 and is provided with a feeding hole 71, and a feeding nozzle 42 on the hot runner system 4 is exposed through the feeding hole 71. The structure is convenient to manufacture and assemble, is convenient to maintain, effectively protects the hot runner system 4, and prolongs the service life.

The hot nozzle insert and the cooling water path insert are added, so that the hot nozzle insert can protect the hot nozzle from being damaged by insertion in the moving process, and the service life is prolonged; the cooling water route is inserted and can be solved because of the defect that three-plate mould structure leads to unable increase water route, design endless cooling water route in the cooling water route is inserted, take away the heat of hot mouth fast, make near hot mouth temperature reach appropriate temperature, make every hot mouth cooling balance, improve the curtain coating and the stifled mouth condition of the process of moulding plastics, promote cooling efficiency, shorten the shaping cycle, reduce the defective rate of product, improve the production efficiency of mould, accord with the industrial production needs.

Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.

Claims

1. Three-plate mold hot runner's mould structure, including mould embryo hot runner board (1), mould embryo stripper plate (2) and mould embryo A board (3), the equipment has hot runner system (4) on mould embryo hot runner board (1), and this hot runner system (4) have towards mould embryo stripper plate (2) protruding multiunit hot mouth (41) of stretching, its characterized in that: the mold blank heat runner plate is characterized by further comprising a heat nozzle insert (5) and a cooling water channel insert (6), the heat nozzle insert (5) is fixed on the mold blank heat runner plate (1) and is sleeved with a heat nozzle (41), a guide through hole (21) is formed in the mold blank stripper plate (2), the shape and the size of the guide through hole (21) are matched with those of the heat nozzle insert (5), and when the mold blank heat runner plate (1) and the mold blank stripper plate (2) move relatively, the guide through hole (21) guides and limits the heat nozzle insert (5); the cooling water channel insert (6) is fixed on the die blank stripping plate (2) and is provided with a cooling water channel (61) surrounding the guide through hole (21), the cooling water channel insert (6) is further provided with a discharge hole (62), and the discharge hole (62) is communicated with the hot nozzle (41) in a butt joint mode.

2. The mold structure of a three-plate mold hot runner according to claim 1, wherein: the hot nozzle insert (5) and the cooling water path insert (6) are matched in a one-to-one mode, and one hot nozzle insert (5) and one cooling water path insert (6) are matched and correspond to one group of hot nozzles (41).

3. The mold structure of a three-plate mold hot runner according to claim 1 or 2, wherein: the hot nozzle insert (5) is a cross-shaped body, and the upper end of the hot nozzle insert (5) is attached to the die blank hot runner plate (1) and is locked and fixed through a screw; the lower end of the hot nozzle insert (5) protrudes towards the die blank stripping plate (2), the lower end of the hot nozzle insert (5) is provided with a lower extending column (51) extending along with the hot nozzle (41), and the hot nozzle (41) penetrates through the interior of the hot nozzle insert (5) and the lower extending column (51) and is in butt joint communication with a discharge hole (62) of the cooling water channel insert (6); the lower post (51) is inserted into a discharge hole (62) of the cooling water channel insert (6).

4. The mold structure of a three-plate mold hot runner according to claim 3, wherein: the downward extending column (51) is a cone, and the outer diameter of the lowermost end of the downward extending column (51) is smaller than the aperture of the discharging hole (62).

5. The mold structure of a three-plate mold hot runner according to claim 1 or 2, wherein: the upper end of the cooling waterway insert (6) is attached to the mold blank stripper plate (2) and is locked and fixed through a screw, a groove (31) facing the mold blank stripper plate (2) is formed in the mold blank A plate (3), and the cooling waterway insert (6) is surrounded and coated by the groove (31) and the mold blank stripper plate (2).

6. The mold structure of a three-plate mold hot runner according to claim 1, wherein: the hot runner system (4) is embedded into a preset accommodating groove (11) in the mold blank hot runner plate (1) from top to bottom, a mold blank panel (7) is assembled on the upper side face of the mold blank hot runner plate (1), the mold blank panel (7) covers the hot runner system (4) and is provided with a feeding hole (71), and a feeding nozzle (42) on the hot runner system (4) is exposed through the feeding hole (71).