CN201423740Y

CN201423740Y - Hot flow passage die

Info

Publication number: CN201423740Y
Application number: CN2009201600572U
Authority: CN
Inventors: 朱进麒
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-16
Filing date: 2009-06-16
Publication date: 2010-03-17
Anticipated expiration: 2019-06-16

Abstract

The utility model relates to a hot flow passage die, which comprises an upper and a lower formworks, a flow passage plate, an A plate for placing a heat resistance, a supporting board propping products out, a B plate carrying a rear die core, a thimble panel for placing a thimble, and a thimble bottom board, wherein a splitter plate is arranged in the flow passage plate, and electric heating devices are arranged in the flow passage plate and the splitter plate, and the electric heating device is connected with a temperature control box. The die can reduce original waste, and saves labor.

Description

Hot runner mould

Technical field

The utility model relates to the injection mold field, a kind of specifically hot runner mould.

Background technology

Existing injection mold from the injection machine jet expansion through runner to the process of cast gate, because the reduction of temperature can cause partly plastic to solidify.This not only wastes raw material, and hinders the unimpeded of runner, and after shutdown, need open runner and take out material with fixed attention, and this has expended man-hour again, has increased the amount of labour.

The utility model content

The purpose of this utility model is for providing the hot runner mould that can not solidify the process of a kind of molten plastic from the injection machine nozzle to cast gate.

The technical scheme that realizes the foregoing invention purpose is as follows:

Hot runner mould, comprise upper and lower template, with runner plate, be used to place the A plate that heat chews, the supporting plate that ejects product, carrying back core rod the B plate, place the thimble panel of thimble, and Ejector Retainer Plate, be provided with flow distribution plate in the described runner plate, be provided with electric heater unit at runner plate and shunting board, described electric heater unit connects temperature control box.

Top at cope match-plate pattern is provided with thermal insulation board.This thermal insulation board is used to isolate mould and injection machine, prevents that injection machine from contacting with mould, improves the heat-insulating property of mould.

Described electric heater unit is electrically heated rod or Electrothermal ring.

The utility model guarantees that by the way of heating the plastics of runner and cast gate keep molten condition.Near runner or the center be provided with heating rod or heating collar; whole runner from the injection machine jet expansion to cast gate all is in the condition of high temperature; make the plastics in the runner keep fusion, do not need to open runner after the shutdown and take out material with fixed attention, only need add hot flow path when starting shooting again to temperature required getting final product.Therefore, hot flow path technology is called runnerless mould again and moulds.Characteristics that it has and advantage can be created more added value for the client:

1, shortens molding cycle

Because of there not being the flow passage system restriction of cool time, just can in time eject behind the making forming and hardening.The thin-walled parts molding cycle that hot runner mould of the present utility model is produced is below 5 seconds.

2, save, reduce material cost

Because of there not being cold runner, so there is not production waste, this is especially great for the expensive application item meaning of plastics in hot runner mould.The hot flow path technology is to reduce the effective way that waste material reduces cost.

3, control, quality is better

In the hot runner mould forming process, the plastic melt temperature is accurately controlled at flow passage system.The plastics more state of uniformity flow into each die cavity, the part of uniform quality consequently, and the part cast gate quality of hot runner molding is good, and residual stress is low after the demoulding, and part deformation is little.

4, efficient, reduce cost of labor

Product is finished product after the hot runner mould moulding, production efficiency improves is not using manipulator, does not have under the situation of operation, need not to prune operations such as cast gate and recovery cold runner.Hot flow path and automation are combined to enhance productivity significantly.

5, can demonstrate,prove more than 1,000,000 times the service life of mould.

Environment protection standard:

1, because of the hot flow path heating belongs to inner heating, the industrial waste gas discharge rate is up to state standards fully.

2, no industrial waste is discharged, and need not to handle promptly to meet national environmental standard.

3, no waste recovery has only the aging recovery of cost spare, meets national environmental standard.

Description of drawings

Fig. 1 is a structural representation of the present utility model

The number in the figure explanation:

1, thermal insulation board; 2, cope match-plate pattern; 3, runner plate; 4, A plate; 5, supporting plate; 6, B plate; 7, thimble panel; 8, Ejector Retainer Plate; 9, lower bolster; 10, flange; 11, temperature control box; 12, flow distribution plate; 13, Re Zui.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

As shown in Figure 1, hot runner mould, comprise upper and

lower template

2,9, with runner plate 3, be used to place the thimble panel 7 that heat is chewed the B plate 6 of 13 A plate 4, the supporting plate 5 that ejects product, carrying back core rod, placed thimble, and Ejector Retainer Plate 8, be provided with flow distribution plate 12 in the described runner plate 3, be provided with electric heater unit at

runner plate

3 and 12 ones of flow distribution plates, described electric heater unit connects temperature control box 11.

Top at cope match-plate pattern 2 is provided with thermal insulation board.This thermal insulation board is used to isolate mould and injection machine, prevents that injection machine from contacting with mould, improves the heat-insulating property of mould.

Be clearer understanding the utility model, below each parts of the utility model be described in detail:

Thermal insulation board 1, effect and performance prevent contacting of mould and injection machine, shorten the formed product cycle, the heat-insulating property of raising mould;

Cope match-plate pattern 2, main effect be fixed mould with injection machine between be connected;

Runner plate 3, main effect is to place flow distribution plate, has electric heater unit, it is melt and dissolved that plastics are heated in runner plate;

A plate 4, major function are to place heat to chew, and by hot runner manifold, chew at purt under the connection of flange, and the guiding big gun is chewed injection, makes it moulding;

Supporting plate 5 have the equivalent effect of thimble, but the product that ejects than thimble is more attractive in appearance and beautiful, can't see the thimble seal;

B plate 6, carrying back core rod is finished the moulding of product;

Thimble panel 7, main effect are to place thimble, under the push rod of injection machine promotes, eject product smoothly;

Ejector Retainer Plate 8, main effect is fastening thimble, back stitching, spring.

Lower bolster 9, main effect be fixed mould with injection machine between be connected;

Flange 10, main effect are that guiding injection moulding machine gun is chewed and the mould sprue bushing function that has guiding and cooperate;

Temperature control box 11, main effect is the size by adjusting electric current and voltage, adjusts the watt level of shunting guidance tape heating wire, thereby reaches the forming temperature of control plastics; . flow distribution plate 12, main effect is to adjust the trend of materials flow in plate, is assigned to each heat and chews injection moulding is carried out smoothly;

Heat chews 13, main effect is to connect flow distribution plate and product, chews the heating circle of the inside by heat, remains the plastics of heat in chewing in the injection moulding of constant temperature compacted under, reduce the loss of heat and the loss of pressure, and the entry vestige that can also avoid the formed product rear surface to leave.

Claims

1. hot runner mould, comprise upper and lower template, with runner plate, be used to place the A plate that heat chews, the supporting plate that ejects product, carrying back core rod the B plate, place the thimble panel of thimble, and Ejector Retainer Plate, it is characterized by: be provided with flow distribution plate in the described runner plate, be provided with electric heater unit at runner plate and shunting board, described electric heater unit connects temperature control box.

2. hot runner mould according to claim 1 is characterized by: the top at cope match-plate pattern is provided with thermal insulation board.

3. hot runner mould according to claim 1 is characterized by: described electric heater unit is electrically heated rod or Electrothermal ring.