CN213675244U

CN213675244U - Plastic shell sleeving mold based on hot runner

Info

Publication number: CN213675244U
Application number: CN202022248820.6U
Authority: CN
Inventors: 刘运光; 王大镇; 赵建; 刘力喜; 金宝荣; 翁胜行; 刘哲; 吴正武; 王晓忠; 支建永; 潘旭升
Original assignee: Zhejiang Hexing Electrician Co ltd
Current assignee: Zhejiang Hexing Electrician Co ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-13
Anticipated expiration: 2030-10-10

Abstract

The utility model relates to a mould shell suit mould based on hot runner, including the movable mould cavity plate, and fix in order and form the cover half bedplate of mould, hot runner plate and cover half cavity plate, there is the hot runner cavity in the hot runner plate, the plastic raw materials can follow the gluey mouth of advancing that covers half bedplate and get into the hot runner cavity, first hot nozzle and the hot mouth of second can be connected to the hot runner plate, the top of first hot nozzle and the hot mouth of second sets up corresponding first needle valve, the second needle valve, first hot nozzle passes the second through-hole on the base cover half backing plate in proper order, the third through-hole on the base cover half is inserted, mould plastics to base movable mould owner, the hot mouth of second passes upper cover half backing plate in proper order, the first through-hole on the first insert of upper cover half is to the supplementary injection of inserting of upper cover movable mould, be equipped with the runner on the supplementary insert of upper cover movable mould, the runner leads to. Only the upper cover movable die auxiliary insert is provided with a small section of cold runner, so that the injection molding pressure is low, the production cost is low, and the production is more stable.

Description

Plastic shell sleeving mold based on hot runner

Technical Field

The utility model relates to a mould shell set mould based on hot runner.

Background

The traditional mold for plastic injection molding plastic shell sleeving adopts a three-plate mold, two branches of cold runners extend downwards from a glue inlet, one branch is used for a plastic injection molding plastic shell base, and the other branch is used for a plastic injection molding plastic shell upper cover. The drawbacks of such three-plate injection molding are: 1. the cold runner is very long, the weight reaches 26.3 g, and the injection pressure loss is very large; 2. due to the shape and structure difference of the injection molding products with two branches, two gates are filled simultaneously during injection molding, and plastic materials are difficult to flow uniformly. If the flow balance is to be achieved, the ideal effect can be achieved only by optimizing and adjusting for multiple times, the development period is long, the cost is high, otherwise, the cavity which is formed by injection molding firstly continuously bears the injection molding pressure, and the adverse effects of product flash and the like are caused; 3. the three-plate die has the disadvantages of multiple die opening procedures, high noise and unstable production.

Disclosure of Invention

In view of this, the utility model aims at providing an easily reach flow balance, and produce comparatively stable mould set of moulding shell based on hot runner.

In order to realize the purpose, the utility model adopts the plastic shell suit die based on the hot runner, which comprises a movable mould cavity plate, a fixed mould seat plate, a hot runner plate and a fixed mould cavity plate, wherein the fixed mould seat plate, the hot runner plate and the fixed mould cavity plate are sequentially arranged and fixed to form an upper mould, the hot runner plate is internally provided with a hot runner cavity, plastic raw materials can enter the hot runner cavity from a glue inlet of the fixed mould seat plate, the hot runner plate can be connected with a first hot nozzle and a second hot nozzle, a corresponding first needle valve and a second needle valve are arranged above the first hot nozzle and the second hot nozzle, the first hot nozzle sequentially passes through a second through hole on a base fixed mould base plate and a third through hole on a base fixed mould insert and performs injection molding on a base movable mould main insert, the second hot nozzle sequentially passes through a first through hole on an upper cover fixed mould base plate and a first insert of an upper cover fixed mould to assist in the injection of the upper cover movable mould insert, the auxiliary insert of the upper cover moving die is provided with a runner which leads to the main insert of the upper cover moving die. Compared with the prior art, the invention has the beneficial technical effects that: through the setting of above structure, open first needle valve and second needle valve, with hot runner plate material leading-in respectively to first hot mouth and the hot mouth of second, in the runner of plastic raw materials, only have a small section cold runner on the supplementary insert of upper cover movable mould, injection pressure is little, low in production cost, and, the hot runner plate need not separate with the cover half die cavity board and breaks away from, and production is more stable.

Particularly, one end of the runner is provided with a submarine gate, and the submarine gate is used for injecting the plastic to one side of the auxiliary insert of the upper cover moving die. The upper cover product is easy to realize injection molding by laterally injecting the upper cover cavity.

Particularly, one end, located at the submarine gate, of the auxiliary insert block of the upper cover moving die is provided with a dovetail-shaped groove, a gate insert strip is embedded in the dovetail-shaped groove, and the submarine gate is arranged on the gate insert strip. Through the arrangement of the structure, the pouring system of the upper cover product is simple in structure and convenient to produce and maintain.

Particularly, the plastic shell sleeving mold based on the hot runner comprises a time schedule controller and an electromagnetic valve, wherein the electromagnetic valve is used for the cross connection and disconnection of a first needle valve or a second needle valve, and the time schedule controller outputs a drive control signal of a target duty ratio to the electromagnetic valve. The time schedule controller drives the electromagnetic valve to act and keeps the first target duration, so that the first needle valve is opened until the injection molding of a first product is completed; and when the first target time length is finished, driving the electromagnetic valve again to act and keeping the second target time length, so that the second needle valve is opened until the injection molding of the second product is finished. Thus, a complete injection molding cycle is completed. The injection molding of products in multiple cavities can be finally completed by setting different on-off time lengths of the two needle valves, the injection molding time of different products is easy to control, and adverse phenomena such as product flash and the like cannot be caused.

It is special, the first insert of hot runner plate and upper cover half, upper cover half second insert and form first water carrying channel, upper cover movable mould backing plate the supplementary insert of upper cover movable mould, upper cover movable mould main insert and form second water carrying channel, upper cover movable mould main insert on be equipped with the cooling well, base movable mould backing plate and base movable mould main insert form third water carrying channel, hot runner plate and base cover half backing plate, base cover half insert and form fourth water carrying channel, the base cover half insert the base cover half backing plate base movable mould main insert on all be equipped with corresponding cooling well, the both sides of base movable mould main insert be equipped with first slider and second slider respectively, the side direction of first slider with the second slider on be equipped with the cooling channel who is used for the fortune water. Through the arrangement of the structure, the water conveying channel is fully arranged in the die, the cooling water wells are arranged near the hot nozzle and on the movable die main insert block, the temperature balance of the whole die can be ensured, the cooling time in each cavity is uniform, and the die opening quality of injection products is improved.

Drawings

Fig. 1 is a side view of an embodiment of the invention;

FIG. 2 is a schematic exploded view of the stationary die holder plate and the hot runner plate according to the embodiment of the present invention;

fig. 3 is an exploded view of the mold core of the plastic shell upper cover in the embodiment of the present invention;

FIG. 4 is a perspective view of the auxiliary insert of the upper cover moving mold and the gate fillet in the embodiment of the present invention;

fig. 5 is a schematic top view of water transportation of the moving mold cavity plate in the embodiment of the present invention;

FIG. 6 is a schematic top view of the water transport of the hot runner plate in an embodiment of the present invention;

FIG. 7 is a schematic top view of water transportation of a fixed mold cavity plate in the embodiment of the present invention;

FIG. 8 is a schematic top view of water transportation of the first insert of the cover fixed die of the plastic shell according to the embodiment of the present invention;

FIG. 9 is a schematic right side view of a water transportation of a second insert of a cover fixed die of a plastic shell according to an embodiment of the present invention;

FIG. 10 is a schematic top view of water transportation of the main insert of the plastic case upper cover movable mold according to the embodiment of the present invention;

FIG. 11 is a schematic top view of water transportation of a fixed mold insert of a plastic casing base according to an embodiment of the present invention;

FIG. 12 is a schematic top view of the water transportation of the main insert block of the movable mold of the plastic casing base according to the embodiment of the present invention;

fig. 13 is a schematic top view of water transportation of the fixed mold base plate of the plastic casing base in the embodiment of the present invention;

fig. 14 is a top view of the mold core of the plastic casing base in the embodiment of the present invention;

fig. 15 is a schematic top view of water transportation of the first slider in the embodiment of the present invention;

fig. 16 is a schematic top view of water transportation of the second slider in the embodiment of the present invention.

In the figure: 1. a fixed die base plate; 11. a glue inlet; 2. a hot runner plate; 21. a hot runner; 22. a first hot nozzle; 23. a second hot nozzle; 3. determining a model cavity plate; 4. a moving mold cavity plate; 5. an electrical control connector; 61. covering a fixed die base plate; 62. covering and fixing the first insert; 621. a first through hole; 63. covering and fixing the second insert; 64. an auxiliary insert of the upper cover moving die; 641. a flow channel; 642. a submarine gate; 711. a third through hole; 73. a base fixed die base plate; 731. a second through hole; 74. a first slider; 75. a second slider; 8. a cooling channel; 9. and cooling the water well.

Detailed Description

As shown in fig. 1 to 4, a plastic case sleeving mold based on a hot runner comprises a moving mold cavity plate 4, a fixed mold base plate 1, a hot runner plate 2 and a fixed mold cavity plate 3, wherein the fixed mold base plate 1, the hot runner plate 2 and the fixed mold cavity plate 3 are sequentially arranged and fixed to form an upper mold, the hot runner plate 2 is provided with a hot runner cavity, a plastic material can enter the hot runner cavity from a glue inlet 11 of the fixed mold base plate 1, the hot runner plate 2 can be connected with a first hot nozzle 22 and a second hot nozzle 23, corresponding first needle valves and second needle valves are arranged above the first hot nozzle 22 and the second hot nozzle 23, the first hot nozzle 22 sequentially passes through a second through hole 731 on a fixed mold base plate 73 and a third through hole on a fixed mold insert to perform injection molding on a main insert of a base moving mold, the second hot nozzle 23 sequentially passes through a fixed mold base plate 61 and a first through hole 621 on a first insert 62 of an upper fixed mold to perform injection on an auxiliary insert 64 of the upper cover moving mold, the upper cover moving die auxiliary insert 64 is provided with a flow channel 641, and the flow channel 641 leads to the upper cover moving die main insert.

Furthermore, a temperature measurement and control element is arranged on the outer side of the hot runner cavity.

One end of the runner 641 is provided with a submarine gate, and the submarine gate is used for injecting plastic to one side of the upper cover movable die auxiliary insert.

One end of the auxiliary insert block of the upper cover moving die, which is positioned at the submarine gate, is provided with a dovetail-shaped groove, a gate insert strip is embedded in the dovetail-shaped groove, and the submarine gate 642 is arranged on the gate insert strip.

The plastic shell sleeving mold based on the hot runner is provided with a time schedule controller and an electromagnetic valve, wherein the electromagnetic valve is used for the cross connection and disconnection of a first needle valve or a second needle valve, and the time schedule controller outputs a driving control signal of a target duty ratio to the electromagnetic valve.

As shown in fig. 5 to 16, the hot runner plate 2, the first upper cover fixed die insert 62 and the second upper cover fixed die insert 63 form a first water carrying channel, the second upper cover movable die insert, the second upper cover movable die backing plate, the auxiliary upper cover movable die insert 64 and the main upper cover movable die insert form a second water carrying channel, the main upper cover movable die insert is provided with a cooling water well 9, the base movable die backing plate and the main base movable die insert form a third water carrying channel, the hot runner plate 2, the base fixed die backing plate 73 and the main base movable die insert form a fourth water carrying channel, the base fixed die insert, the base fixed die backing plate 73 and the main base movable die insert are respectively provided with a corresponding cooling water well 9, the two sides of the main base movable die insert are respectively provided with a first slide block 74 and a second slide block 75, and the side directions of the first slide block 74 and the second slide block 75 are provided.

Furthermore, the fixed die base plate is wound around a fifth water carrying channel along a shaft ring, the fixed die cavity plate and the movable die cavity plate are provided with a sixth water carrying channel and a seventh water carrying channel around the cavity, and the diameters of water holes of the fifth water carrying channel, the sixth water carrying channel and the seventh water carrying channel are 8 mm.

The cooling channel is connected with a cooling water long joint with the diameter of 8 mm.

The diameters of the water holes of the first water transporting channel, the second water transporting channel, the third water transporting channel and the fourth water transporting channel are 6-8 mm.

Claims

1. The utility model provides a mould shell package mold based on hot runner which characterized in that: the hot runner injection molding die comprises a movable die cavity plate, a fixed die base plate, a hot runner plate and a fixed die cavity plate, wherein the fixed die base plate, the hot runner plate and the fixed die cavity plate are sequentially arranged and fixed to form an upper die, the hot runner plate is internally provided with a hot runner cavity, plastic raw materials can enter the hot runner cavity from a glue inlet of the fixed die base plate, the hot runner plate can be connected with a first hot nozzle and a second hot nozzle, a corresponding first needle valve and a corresponding second needle valve are arranged above the first hot nozzle and the second hot nozzle, the first hot nozzle sequentially penetrates through a second through hole in a fixed die base plate of a base and a third through hole in a fixed die insert of the base and injects the main insert of a movable die of the base, the second hot nozzle sequentially penetrates through first through holes in a fixed die base plate and a fixed die first insert of the upper cover and injects into the auxiliary insert of the movable die of the upper cover, the auxiliary insert of the movable die is provided with a runner, the runner leads to the upper cover moving die main insert.

2. The hot-runner-based plastic case set mold of claim 1, wherein: one end of the runner is provided with a submarine gate, and the submarine gate is used for injecting and molding towards one side of the auxiliary insert of the upper cover moving die.

3. The hot-runner-based plastic case set mold of claim 2, wherein: the auxiliary insert block of the upper cover moving die is provided with a dovetail-shaped groove at one end of the submarine gate, a gate filler rod is embedded in the dovetail-shaped groove, and the submarine gate is arranged on the gate filler rod.

4. A hot-runner based plastic case set mold according to claim 1, 2 or 3, wherein: the plastic shell die set based on the hot runner is provided with a time schedule controller and an electromagnetic valve, wherein the electromagnetic valve is used for the cross on-off of a first needle valve or a second needle valve, and the time schedule controller outputs a drive control signal of a target duty ratio to the electromagnetic valve.

5. The hot-runner-based plastic case set mold according to claim 1 or 2, wherein: the hot runner plate and the first insert of upper cover half, the second insert of upper cover half form first water carrying channel, upper cover movable mould backing plate the supplementary insert of upper cover movable mould, the main insert of upper cover movable mould form second water carrying channel, the main insert of upper cover movable mould on be equipped with the cooling well, base movable mould backing plate and the main insert of base movable mould form third water carrying channel, hot runner plate and base cover half backing plate, base cover half insert and form fourth water carrying channel, the base cover half insert the base cover half backing plate the main movable mould of base on all be equipped with corresponding cooling well, the both sides that the main insert of base movable mould be equipped with first slider and second slider respectively, first slider with the side direction of second slider on be equipped with the cooling channel who is used for the water carrying.