CN203712983U

CN203712983U - Mould with switching runner gate insert

Info

Publication number: CN203712983U
Application number: CN201320844605.XU
Authority: CN
Inventors: 杨静
Original assignee: Permanent Mould Co Ltd Is Held In Chongqing
Current assignee: Permanent Mould Co Ltd Is Held In Chongqing
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2014-07-16
Anticipated expiration: 2023-12-20

Abstract

The utility model aims to provide a set of mould applicable to multi-cavity pouring and single-cavity pouring, thereby meeting different production requirements. The mould with a switching runner gate insert comprises a top cover, a top mould, a bottom mould, a base and a mould core, wherein a circular hole for holding the insert is formed in the mould core; the insert comprises a hollow pipeline, a first branch pipe, a second branch pipe, a third branch pipe and a fourth branch pipe; the hollow pipeline is perpendicular to the upper surface of the mould core; the first branch pipe, the second branch pipe, the third branch pipe and the fourth branch pipe are parallel to the upper surface of the mould core; an upper end opening of the pipeline is communicated with a sprue passing through the top cover and the top mould; a lower end opening of the pipeline is communicated with the first branch pipe, the second branch pipe, the third branch pipe and the fourth branch pipe which are radially mounted at the bottom of the pipeline; an included angle between every two of the first branch pipe, the second branch pipe and the fourth branch pipe is 120 degrees; the third branch pipe is arranged between the second branch pipe and the fourth branch pipe.

Description

A kind of have a mould that turns mouth of a river mold insert

Technical field

The utility model relates to mould manufacturing field.

Background technology

Plastic injection mould is the most general a kind of mould of application in thermoplastic plastic parts production, the process equipment that plastic injection mould is corresponding is plastic-injection moulding machine, plastics are melted by heating in heating cylinder at the bottom of injector first, then under the screw rod or plunger promotion of injector, running gate system through nozzle of injector and mould enters mold cavity, plastics hardening by cooling moulding, the demoulding obtains goods.Its structure is partly comprised of profiled part, running gate system, guiding parts, ejecting mechanism, thermoregulating system, gas extraction system, support component etc. conventionally.Manufactured materials adopts plastic die steel module conventionally, and conventional material is mainly structural carbon steel, carbon tool steel, alloy tool steel, high-speed steel etc.Injection moulding processing mode is only applicable to the production of articles of thermoplastic item conventionally, the plastic products of producing with injection molding technique are very extensive, machinery from small stores to all kinds of complexity, electrical equipment, vehicle parts etc. are all to use injection molding moulding, and it is most widely used a kind of processing method during plastic products are produced.

When using injection molding, normally by sprue bushing, in die cavity, inject the plastics that melt.In existing mould, a mold is provided with a plurality of die cavities conventionally, to enhance productivity.But the product material of each batch is different, the self properties such as mobility that melt plastics are also different.Therefore be not, that each batch of material is all applicable to multi-cavity cast.At present, be necessary for multi-cavity cast and prepare different moulds with the cast of single chamber, greatly improved production cost.

Summary of the invention

The purpose of this utility model is to provide a set of mould that is applicable to multi-cavity cast and the cast of single chamber, to meet different Production requirements.

For realizing the technical scheme that the utility model object adopts, be such, a kind of have a mould that turns mouth of a river mold insert, comprises top cover, backform, bed die, base and die.Bed die is placed in described base top, and the upper surface of described bed die has the groove that holds die.Described backform is placed on the top of bed die, and the lower surface of described backform contacts with the upper surface of die.Described top cover is arranged on the top of backform.

In described die, there is the first die cavity, the second die cavity and the 3rd die cavity.The upper surface of described die has the first groove, the second groove, the 3rd groove and circular hole.Described circular hole, the first groove, the second groove and the 3rd groove upper end are uncovered.The notch of described the first groove, the second groove and the 3rd groove is evenly distributed on the circumference of circular hole.Described the first groove is communicated with circular hole and the first die cavity, and described the second groove is communicated with circular hole and the second die cavity, and described the 3rd groove is communicated with circular hole and the 3rd die cavity.

In described circular hole, hold mold insert.Described mold insert comprises the hollow pipeline perpendicular to die upper surface, and the first arm, the second arm, the 3rd arm and the 4th arm that are parallel to die upper surface.The upper end mouth of pipe of described pipeline is communicated with the sprue bushing through described top cover and backform, the lower end mouth of pipe is communicated with the first arm, the second arm, the 3rd arm and the 4th arm.The bottom that is arranged on radially pipeline of described the first arm, the second arm, the 3rd arm and the 4th arm.Described the first arm, the second arm and the 4th arm angle are between any two 120 °, and described the 3rd arm is between the second arm and the 4th arm.

Further, the mouth of pipe that the lower end mouth of pipe of not following pipeline of described the first arm, the second arm, the 3rd arm and the 4th arm is communicated with and the sidewall contact of circular hole.

As preferably, the angle between described the 3rd arm and the second arm is 60 °.

Technique effect of the present utility model is mathematical, when using injection molding, injects the plastics that melt by sprue bushing, and the plastics of thawing enter in pipeline again, by each arm, are injected in die cavity.Because this mould is provided with a plurality of die cavities, can three arms be docked with die cavity by rotation mold insert, realize multi-cavity and pour into a mould simultaneously; Also can, so that an arm docks with die cavity, carry out the cast of single chamber.So just can both can multi-cavity cast realize high efficiency so that this mould can adapt to the different materials of the product of different batches, single chamber cast under specific circumstances, needn't prepare many molds again, has reduced production cost.

Accompanying drawing explanation

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

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is L part partial enlarged drawing in Fig. 2, represents three direction cast;

Fig. 4 is L part partial enlarged drawing in Fig. 2, represents a direction cast;

Fig. 5 is L part partial enlarged drawing in Fig. 2, represents a direction cast;

Fig. 6 is L part partial enlarged drawing in Fig. 2, represents a direction cast.

In figure: 1-top cover, 2-backform, 3-bed die, 4-base, 5-die, 6-mold insert, 600-pipeline, 601-the first arm, 602-the second arm, 603-the 3rd arm, 604-the 4th arm, 701-the first die cavity, 702-the second die cavity, 703-the 3rd die cavity, 801-the first groove, 802-the second groove, 803-the 3rd groove, 9-circular hole, 10-screwed hole.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail, but should not be construed the above-mentioned subject area of the utility model, only limits to following embodiment.In the situation that not departing from the above-mentioned technological thought of the utility model, according to ordinary skill knowledge and customary means, make various replacements and change, all should be included in protection domain of the present utility model.

There is a mould that turns mouth of a river mold insert, comprise top cover 1, backform 2, bed die 3, base 4 and die 5.Bed die 3 is placed in described base 4 tops, and the upper surface of described bed die 3 has the groove that holds die 5.Described backform 2 is placed on the top of bed die 3, and the lower surface of described backform 2 contacts with the upper surface of die 5.Described top cover 1 is arranged on the top of backform 2.

In described die 5, there is the first die cavity 701, the second die cavity 702 and the 3rd die cavity 703.The upper surface of described die 5 has the first groove 801, the second groove 802, the 3rd groove 803 and circular hole 9.Described circular hole 9, the first groove 801, the second groove 802 and the 3rd groove 803 upper ends are uncovered.The notch of described the first groove 801, the second groove 802 and the 3rd groove 803 is evenly distributed on the circumference of circular hole 9.Described the first groove 801 is communicated with circular hole 9 and the first die cavity 701, and described the second groove 802 is communicated with circular hole 9 and the second die cavity 702, and described the 3rd groove 803 is communicated with circular hole 9 and the 3rd die cavity 703.

In described circular hole 9, hold mold insert 6.Described mold insert 6 comprises the hollow pipeline 600 perpendicular to die 5 upper surfaces, and the first arm 601, the second arm 602, the 3rd arm 603 and the 4th arm 604 that are parallel to die 5 upper surfaces.The upper end mouth of pipe of described pipeline 600 is communicated with the sprue bushing through described top cover 1 and backform 2, the lower end mouth of pipe is communicated with the first arm 601, the second arm 602, the 3rd arm 603 and the 4th arm 604.The bottom that is arranged on radially pipeline 600 of described the first arm 601, the second arm 602, the 3rd arm 603 and the 4th arm 604.Described the first arm 601, the second arm 602 and the 4th arm 604 angle are between any two 120 °, and described the 3rd arm 603 is between the second arm 602 and the 4th arm 604.

In embodiment, the mouth of pipe that the lower end mouth of pipe of not following pipeline 600 of described the first arm 601, the second arm 602, the 3rd arm 603 and the 4th arm 604 is communicated with and the sidewall contact of circular hole 9.

As preferably, the angle between described the 3rd arm 603 and the second arm 602 is 60 °.

Claims

1. there is a mould that turns mouth of a river mold insert, it is characterized in that: comprise top cover (1), backform (2), bed die (3), base (4) and die (5); Bed die (3) is placed in described base (4) top, and the upper surface of described bed die (3) has the groove that holds die (5); Described backform (2) is placed on the top of bed die (3), and the lower surface of described backform (2) contacts with the upper surface of die (5); Described top cover (1) is arranged on the top of backform (2);

In described die (5), there is the first die cavity (701), the second die cavity (702) and the 3rd die cavity (703); The upper surface of described die (5) has the first groove (801), the second groove (802), the 3rd groove (803) and circular hole (9); Described circular hole (9), the first groove (801), the second groove (802) and the 3rd groove (803) upper end are uncovered; The notch of described the first groove (801), the second groove (802) and the 3rd groove (803) is evenly distributed on the circumference of circular hole (9); Described the first groove (801) is communicated with circular hole (9) and the first die cavity (701), and described the second groove (802) is communicated with circular hole (9) and the second die cavity (702), and described the 3rd groove (803) is communicated with circular hole (9) and the 3rd die cavity (703);

In described circular hole (9), hold mold insert (6); Described mold insert (6) comprises the hollow pipeline (600) perpendicular to die (5) upper surface, and the first arm (601), the second arm (602), the 3rd arm (603) and the 4th arm (604) that are parallel to die (5) upper surface; The upper end mouth of pipe of described pipeline (600) is communicated with the sprue bushing through described top cover (1) and backform (2), the lower end mouth of pipe is communicated with the first arm (601), the second arm (602), the 3rd arm (603) and the 4th arm (604); The bottom that is arranged on radially pipeline (600) of described the first arm (601), the second arm (602), the 3rd arm (603) and the 4th arm (604); Described the first arm (601), the second arm (602) and the 4th arm (604) angle are between any two 120 °, and described the 3rd arm (603) is positioned between the second arm (602) and the 4th arm (604).

2. a kind of mould that turns mouth of a river mold insert that has according to claim 1, is characterized in that: the mouth of pipe that the lower end mouth of pipe of not following pipeline (600) of described the first arm (601), the second arm (602), the 3rd arm (603) and the 4th arm (604) is communicated with and the sidewall contact of circular hole (9).

3. a kind of mould that turns mouth of a river mold insert that has according to claim 1, is characterized in that: the angle between described the 3rd arm (603) and the second arm (602) is 60 °.