CN210940291U

CN210940291U - Hot runner plastic mold for molding notebook computer shell

Info

Publication number: CN210940291U
Application number: CN201921681190.2U
Authority: CN
Inventors: 吴德彬; 万三豹
Original assignee: Shanghai Mengen Electronic Technology Co ltd
Current assignee: Shanghai Mengen Electronic Technology Co ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-07-07
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a hot runner plastic mold for notebook computer shell molding, which belongs to the mold technical field, and comprises a lower mold, an upper mold and four positioning rods, wherein the upper mold is positioned at the upper side of the lower mold, the four positioning rods are respectively fixed at the four corners of the upper end of the lower mold, the four corners of the upper end of the upper mold are respectively provided with positioning holes, the upper ends of the four positioning rods respectively penetrate through the four positioning holes, the upper end of the lower mold is provided with a mold cavity, the middle part of the upper end of the lower mold is fixed with a heating cylinder, the upper end of the heating cylinder is fixed with a first pipeline which is communicated with the heating cylinder, the upper end of the first pipeline is fixed with a funnel which is communicated with the first pipeline, the lower end of the first pipeline is fixed with a hot runner, part of the hot runner is embedded in the upper mold and is communicated with the outside, the surface of, the heating effect is good, the efficiency is high, the design is ingenious, and the practicability is strong.

Description

Hot runner plastic mold for molding notebook computer shell

Technical Field

The utility model relates to the technical field of mold, more specifically say, relate to a be used for fashioned hot runner plastic mould of notebook shell.

Background

The hot runner system generally comprises a hot nozzle, a flow distribution plate, a temperature control box, accessories and the like, wherein the hot nozzle generally comprises two types: open hot nozzles and needle valve hot nozzles, because the form of the hot nozzle directly determines the selection of the hot runner system and the manufacture of the mold, the hot runner system is divided into the open hot runner system and the needle valve hot runner system correspondingly.

However, in the production process of the existing hot runner plastic mold for forming the notebook computer shell, the raw material needs to be heated, but when the raw material is heated, the phenomena of poor heating effect and low efficiency exist, and a common hot runner adopts a straight cylinder shape, so that the heating time is too short, the temperature of the raw material entering a mold cavity does not meet the requirement, and troubles are brought to subsequent forming.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a be used for fashioned hot runner plastic mould of notebook shell, it heats the effect well, and is efficient, thinks about ingenious, and the practicality is strong.

2. Technical scheme

In order to solve the above problem, the utility model adopts the following technical scheme:

a hot runner plastic mold for notebook computer shell molding comprises a lower mold, an upper mold and four positioning rods, wherein the upper mold is positioned at the upper side of the lower mold, the four positioning rods are respectively fixed at the four corners of the upper end of the lower mold, the four corners of the upper end of the upper mold are respectively provided with positioning holes, the upper ends of the four positioning rods respectively penetrate through the four positioning holes, the upper end of the lower mold is provided with a mold cavity, the middle part of the upper end of the lower mold is fixed with a heating cylinder, the upper end of the heating cylinder is fixed with a first pipeline which is communicated with the heating cylinder, the upper end of the first pipeline is fixed with a funnel which is communicated with the first pipeline, the lower end of the first pipeline is fixed with a hot runner, part of the hot runner is embedded in the upper mold and is communicated with the outside, the surface of the hot runner is connected, the bottom of cold and hot room is fixed with the hot plate, the upper end of hot plate is fixed with the second pipeline, and the both ends tip of second pipeline all runs through the lower mould, the upper end of lower mould is fixed with first temperature controller and second temperature controller, and first temperature controller and second temperature controller are located the left and right sides of cartridge heater respectively, the heater strip is connected with first temperature controller electricity, the hot plate is connected with the second temperature controller electricity, and heating effect is good, and is efficient, thinks about ingeniously, and the practicality is strong.

As an optimized scheme of the utility model, go up the mould all there is the hinge, it is a pair of at both ends about all through the fix with screw the lower extreme of hinge all is fixed with the fastener, the fastener is close to the one end of last mould and has seted up the catching groove, and is a pair of both ends all are fixed with the matching piece about the lower mould, and a pair of matching piece is located a pair of fastener respectively under the side, and is a pair of the jack has all been seted up to the front end of matching piece, it has the bolt to peg graft in the jack, the height and the width of catching groove all are greater than the height and the width of matching piece.

As an optimal proposal of the utility model, the inner wall of the jack is adhered with a spongy cushion through a nylon patch.

As an optimized scheme of the utility model, the heater strip passes through high temperature resistant silicone adhesive splice in the surface of hot runner, and the heater strip twines in the surface of hot runner.

As an optimized proposal of the utility model, the hot runner is in a continuous lightning sign shape.

As a preferred scheme of the utility model, the distance between the top of the cold and hot chamber and the bottom end of the die cavity is 3-4 cm.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme has increased the motion route of raw materials through the setting of the hot runner that is continuous thunder and lightning sign shape, through setting up the heating at its outside heater strip to carry out good heating to the raw materials, the effect is good, and is efficient, makes the temperature behind the raw materials entering die cavity can reach the effect of ideal.

(2) This scheme lets in the cooling water in through the second pipeline, can carry out good cooling to the lower mould, can also heat the cooling water in the second pipeline through the hot plate simultaneously, makes the raw materials of die cavity reach the temperature of ideal, has dual efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 at C according to the present invention;

fig. 5 is a schematic structural view of the hot runner of the present invention;

fig. 6 is a schematic structural view of the heating plate of the present invention.

The reference numbers in the figures illustrate:

1 lower mould, 2 upper moulds, 3 locating rods, 4 locating holes, 5 heating cylinders, 6 first pipelines, 7 funnels, 8 first temperature controllers, 9 second temperature controllers, 10 hot runners, 11 heating wires, 12 mould cavities, 13 second pipelines, 14 cold and hot chambers, 15 heating plates, 16 hinges, 17 fasteners, 18 fastening grooves, 19 matching parts, 20 jacks and 21 plugs.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-6, a hot runner plastic mold for forming a notebook computer shell comprises a lower mold 1, an upper mold 2 and four positioning rods 3, wherein the upper mold 2 is located on the upper side of the lower mold 1, the four positioning rods 3 are provided, the four positioning rods 3 are respectively fixed at four corners of the upper end of the lower mold 1, the positioning rods 3 mainly play a role in positioning, the four corners of the upper end of the upper mold 2 are provided with positioning holes 4, and the upper ends of the four positioning rods 3 respectively penetrate through the four positioning holes 4;

hinges 16 are fixed at the left end and the right end of the upper die 2 through screws, fasteners 17 are fixed at the lower ends of the hinges 16, the fasteners 17 can be turned over up and down, a fastening groove 18 is arranged at one end of each fastener 17 close to the upper die 2, matching pieces 19 are fixed at the left end and the right end of the lower die 1, and the pair of matching pieces 19 are respectively positioned at the right lower sides of the pair of fasteners 17, the front ends of the pair of matching pieces 19 are respectively provided with a jack 20, a plug 21 is inserted in the jack 20, when the four positioning rods 3 respectively penetrate through the four positioning holes 4 and the lower die 1 is contacted with the upper die 2, the matching piece 19 is buckled into the buckling groove 18, the lower die 1 and the upper die 2 are connected by inserting the bolt 21, the inner wall of the jack 20 is adhered with a spongy cushion through nylon, the spongy cushion is used for increasing friction, the bolt 21 is not easy to loosen and is more tightly inserted, and the height and the width of the buckle groove 18 are both larger than those of the matching piece 19;

the upper end of the lower die 1 is provided with a die cavity 12, the middle part of the upper end of the lower die 1 is fixed with a heating cylinder 5, the upper end of the heating cylinder 5 is fixed with a first pipeline 6, the first pipeline 6 is communicated with the heating cylinder 5, the upper end of the first pipeline 6 is fixed with a funnel 7, the funnel 7 is communicated with the first pipeline 6, the funnel 7 and the first pipeline 6 are both used for raw material passing, the lower end of the first pipeline 6 is fixed with a hot runner 10, part of the hot runner 10 is embedded in the upper die 2 and is communicated with the outside, the hot runner 10 is in a continuous thunder mark shape, the hot runner 10 can effectively increase the motion path of the raw material, so that the raw material is well heated;

the surface of the hot runner 10 is connected with a heating wire 11, the heating wire 11 is adhered to the surface of the hot runner 10 through high-temperature-resistant silicone adhesive, the heating wire 11 is wound on the surface of the hot runner 10, and the heating wire 11 mainly heats the hot runner 10, so that raw materials are well heated;

a cold and hot chamber 14 is formed at the inner end of the lower die 1, the distance between the top of the cold and hot chamber 14 and the bottom end of the die cavity 12 is 3-4cm, a heating plate 15 is fixed at the bottom of the cold and hot chamber 14, the heating plate 15 can heat a second pipeline 13, a second pipeline 13 is fixed at the upper end of the heating plate 15, the end parts of the two ends of the second pipeline 13 penetrate through the lower die 1, one end of the second pipeline 13 is used for entering cooling water, and the other end of the second pipeline is used for discharging cooling liquid;

the upper end of lower mould 1 is fixed with first temperature controller 8 and second temperature controller 9, and first temperature controller 8 and second temperature controller 9 are located the left and right sides of cartridge heater 5 respectively, heater strip 11 is connected with first temperature controller 8 electricity, heater strip 15 is connected with second temperature controller 9 electricity, first temperature controller 8 is used for the instant heating temperature of accurate control heater strip 11, second temperature controller 9 is used for the heating temperature of accurate control heater strip 15, the model of first temperature controller 8 and second temperature controller 9 is 900U electronic temperature controller.

The working principle is as follows: the heating wire 11 is started through the first temperature controller 8, the heating temperature is controlled accurately, the heating plate 15 is started through the second temperature controller 9, the temperature heated by the accurate controller is heated, cooling water is introduced into the second pipeline 13, the raw material is poured into the funnel 7, the raw material flows to the hot runner 10 through the first pipeline 6, the heating wire 11 heats the raw material flowing through the hot runner 10, the heated raw material flows into the die cavity 12, at the moment, the heating plate 15 heats the cooling water, the heat is transferred into the die cavity 12 by utilizing good heat transfer, so that the raw material in the die cavity 12 reaches the ideal temperature for molding, the heating plate 15 and the heating wire 11 are closed, the die cavity is kept still for a period of time, the molding is carried out, the lower die 1 needs to be cooled well, the cooling water is introduced into the second pipeline 13 again, the cooling is carried out on the lower die, the molding speed is accelerated, the utility model discloses the heating, high efficiency, ingenious design and strong practicability.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the improvement concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides a hot runner plastic mould for notebook shell shaping, includes lower mould (1), goes up mould (2) and locating lever (3), its characterized in that: the upper die (2) is positioned at the upper side of the lower die (1), four positioning rods (3) are arranged, the four positioning rods (3) are respectively fixed at the four corners of the upper end of the lower die (1), the four corners of the upper end of the upper die (2) are respectively provided with a positioning hole (4), the upper ends of the four positioning rods (3) respectively penetrate through the four positioning holes (4), the upper end of the lower die (1) is provided with a die cavity (12), the middle part of the upper end of the lower die (1) is fixedly provided with a heating cylinder (5), the upper end of the heating cylinder (5) is fixedly provided with a first pipeline (6), the first pipeline (6) is communicated with the heating cylinder (5), the upper end of the first pipeline (6) is fixedly provided with a funnel (7), the funnel (7) is communicated with the first pipeline (6), the lower end of the first pipeline (6) is fixedly provided with a hot runner (10), and part of the hot runner (10), the surface of hot runner (10) is connected with heater strip (11), cold and hot room (14) have been seted up to the inner of lower mould (1), the bottom of cold and hot room (14) is fixed with hot plate (15), the upper end of hot plate (15) is fixed with second pipeline (13), and the both ends tip of second pipeline (13) all runs through lower mould (1), the upper end of lower mould (1) is fixed with first temperature controller (8) and second temperature controller (9), and just first temperature controller (8) and second temperature controller (9) are located the left and right sides of cartridge heater (5) respectively, heater strip (11) are connected with first temperature controller (8) electricity, hot plate (15) are connected with second temperature controller (9) electricity.

2. The hot runner plastic mold for molding the notebook housing according to claim 1, wherein: go up the left and right sides both ends of mould (2) and all have hinge (16), it is a pair of the lower extreme of hinge (16) all is fixed with fastener (17), buckle groove (18) have been seted up to one end that fastener (17) are close to last mould (2), and is a pair of both ends all are fixed with matching piece (19) about lower mould (1), and just a pair of matching piece (19) are located a pair of fastener (17) positive downside respectively, and are a pair of jack (20) have all been seted up to the front end of matching piece (19), it has bolt (21) to peg graft in jack (20), the height and the width of buckle groove (18) all are greater than the height and the width of matching piece (19).

3. The hot runner plastic mold for molding the notebook housing according to claim 2, wherein: the inner wall of the jack (20) is adhered with a sponge cushion through a nylon adhesive tape.

4. The hot runner plastic mold for molding the notebook housing according to claim 1, wherein: the heating wire (11) is adhered to the surface of the hot runner (10) through high-temperature-resistant silicone adhesive, and the heating wire (11) is wound on the surface of the hot runner (10).

5. The hot runner plastic mold for molding the notebook housing according to claim 1, wherein: the hot runner (10) is in the shape of a continuous lightning marker.

6. The hot runner plastic mold for molding the notebook housing according to claim 1, wherein: the distance between the top of the cold and hot chamber (14) and the bottom end of the die cavity (12) is 3-4 cm.