CN203046151U

CN203046151U - Piston type injection die

Info

Publication number: CN203046151U
Application number: CN 201320064767
Authority: CN
Inventors: 励娟青
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-01
Filing date: 2013-02-01
Publication date: 2013-07-10
Anticipated expiration: 2023-02-01

Abstract

The utility model relates to a piston type injection die which comprises a top cover (1) at the upper end, a fixed die (2) and a moving die (3) at the lower end of the top cover (1), and a base structure at the bottom. The fixed die (2) and the moving die (3) longitudinally correspond to each other; a groove is formed inside the lower end of the fixed die (2); a die pressing groove (7) is formed in the groove; a die pressing plate (8) is arranged inside the upper end of the moving die (3); the die pressing groove (7) and the die pressing plate (8) are arranged opposite to each other; a plurality of inclined ejector pins (9) are connected with the lower end of the die pressing plate (8) and are connected with a surface ejector plate (10) through sliding wheels (12); a piston (13) is arranged at the upper end of the die pressing groove (7), and comprises a hydraulic cylinder and a push rod. By being provided with the piston, the piston type injection die performs pushing in a mode of piston motion, and can perform injection die pressing conveniently.

Description

The piston type injection mold

Technical field

The utility model relates to a kind of injection mold, relates in particular to a kind of piston type injection mold, belongs to processing and manufactures and designs the field.

Background technology

Along with the development of industrial technology, high-end industrial production is come into people's life gradually, and the production of the product of various designs and design all need through drawing design, mould shape and manufacturing several steps.Injection mold is one of most widely used mould in the current industrial production, is a kind of processing method of using when producing some complex-shaped parts in batches.Specifically the finger material that melts that will be heated is injected die cavity by high pressure, behind cooling curing, obtains formed products.Injection mold is made up of dynamic model and cover half two parts, and dynamic model is installed on the moving die plate of injection (mo(u)lding) machine, and cover half is installed on the fixed form of injection (mo(u)lding) machine.Dynamic model and cover half closed formation running gate system and die cavity when injection moulding, dynamic model separates in order to take out plastic products with cover half during die sinking.

Though the structure of injection mold may be ever-changing because plastics variety is different with the shape of performance, plastic products and the type of structure and injector etc., basic structure is consistent.Mould mainly is made up of running gate system, thermoregulating system, forming part and constitutional detail.Wherein running gate system and forming part are and the direct contact portion of plastics, and change with plastics and goods, are the most complicated in the mold, change maximum, require processing fineness and the highest part of precision.Running gate system refers to that plastics enter runner section before the die cavity from nozzle, comprise sprue, cold slug well, runner and cast gate etc.Forming part refers to constitute the various parts of article shape, comprises dynamic model, cover half and die cavity, core, curved lever and exhaust outlet etc.

Injection mold is divided into two kinds on thermosetting plastic mould, thermoplastic plastic's mould according to shaping characteristic; Divide into biography mold, blow molding die, draw mould, thermoforming mould, hot-die (compression mould), injection mould etc. according to moulding process, wherein hot-die can be divided into excessive formula, half overflow formula, overflow three kinds of formulas again in the flash mode, and injection mould can be divided into two kinds of cold flowing mould channel, hot runner moulds again with running gate system; Can be divided into movable type, fixed two kinds by handling mode.But injection mold of the prior art all exists some problems and limitation, such as product when producing because the thimble skewness, be subjected to force unbalance, make the injection moulding failure; The demoulding is difficulty comparatively; Waste time and energy when whole die sinking and delivery, can't satisfy requirements of mass production; Security is not high etc.

Along with the progress of technology, up-to-date scientific and technological achievement has the 3D printer technology, belongs to a kind of of RP technique, but it is to use jointing materials such as powdery metal or plastics, by the multilayer printing type of layer upon layer, and the structure null object.Mould is made, industrial design is used for building model, is now just developing into the product manufacturing, forms " Direct Digital manufacturing ".Make three-dimensional object by the jointing material of printing from level to level.Present stage, three-dimensional printer was used to the perparation of specimen, and this technology can be used for jewelry, footwear, industrial design, building, engineering and construction (AEC), automobile, Aero-Space, dentistry and medical industries, education, GIS-Geographic Information System, civil engineering and many other fields.But there is comparatively obvious defects at present in this technology, and is also pitiably little such as price product quantity extremely expensive and that can print.

The utility model content

In order to overcome the deficiencies in the prior art, resolve prior art problems, remedy the existing deficiency of existing product in the market.

The utility model provides a kind of piston type injection mold, the understructure of the top cover of upper end, cover half, dynamic model and the bottom of top cover lower end constitutes, wherein, cover half and dynamic model corresponding setting up and down, the inside, lower end of cover half is provided with a groove, be provided with embossing grooves in the groove, the inside, upper end of dynamic model is provided with moulded board, embossing grooves is relative with moulded board and establish, the moulded board lower end is connected with a plurality of oblique top pins, the oblique top pin is connected on the face needle plate by movable pulley, is provided with piston in the upper end of embossing grooves, and described piston is made of hydraulic cylinder and catch bar.

Preferably, be provided with a plurality of mould posts between above-mentioned dynamic model and the understructure.

Preferably, base and outer base in above-mentioned understructure comprises.

Preferably, above-mentioned needle plate is fixed on the interior base by shank of a plurality of ends.

Preferably, the two ends of above-mentioned needle plate are provided with the locating piece that limits movable pulley limit of sports record position.

Preferably, the space that has relative motion between above-mentioned dynamic model and the oblique top pin.

The piston type injection mold that the utility model provides is compared with traditional injection mold, and the piston type injection mold that the utility model provides utilizes the mode of piston motion to promote by piston is set, and carries out the injection moulding mold pressing more expediently.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 uses schematic diagram for the utility model.

Mark among the figure: 1-top cover; The 2-cover half; The 3-dynamic model; 4-mould post; Base in the 5-; The 6-outer base; The 7-embossing grooves; The 8-moulded board; 9-oblique top pin; 10-face needle plate; Shank at the bottom of the 11-; The 12-movable pulley; The 13-piston.

The specific embodiment

Understand and enforcement the utility model for the ease of those of ordinary skills, below in conjunction with the drawings and the specific embodiments the utility model is described in further detail.

Be illustrated in figure 1 as piston type injection mold structure schematic diagram of the present utility model, main body comprises the top cover 1 of upper end, the cover half 2 of top cover 1 lower end, the understructure of dynamic model 3 and bottom constitutes, wherein, cover half 2 and dynamic model corresponding setting about in the of 3, the inside, lower end of cover half 2 is provided with a groove, be provided with embossing grooves 7 in the groove, the inside, upper end of dynamic model 3 is provided with moulded board 8, embossing grooves 7 and moulded board 8 are relative and establish, moulded board 8 lower ends are connected with a plurality of oblique top pins 9, oblique top pin 9 is connected on the face needle plate 10 by movable pulley 12, is provided with a plurality of mould posts 4 between dynamic model 3 and the understructure.Base 5 and outer base 6 in understructure comprises.Face needle plate 10 is fixed on the interior base 5 by shank of a plurality of ends 11.The two ends of face needle plate 10 are provided with the locating piece that limits movable pulley 12 limit of sports record positions.The space that has relative motion between dynamic model 3 and the oblique top pin 9.

As shown in Figure 2, for the utility model uses schematic diagram, at this moment, cover half 2 separates up and down with dynamic model 3, and moulded board 8 also breaks away from embossing grooves 7.Oblique top pin 9 moves to both sides in dynamic model 3.

Innovative point of the present utility model and inventive point are: be provided with piston 13 in the upper end of embossing grooves 7, described piston 13 is made of hydraulic cylinder and catch bar.

The specific embodiment of the above is preferred embodiments of the present utility model; be not to limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this specific embodiment that the equivalence that all shapes according to the utility model, structure are done changes all in protection domain of the present utility model.

Claims

1. piston type injection mold, the top cover (1) that comprises the upper end, the cover half (2) of top cover (1) lower end, the understructure of dynamic model (3) and bottom constitutes, wherein, cover half (2) and dynamic model (3) corresponding setting up and down, the inside, lower end of cover half (2) is provided with a groove, be provided with embossing grooves (7) in the groove, the inside, upper end of dynamic model (3) is provided with moulded board (8), embossing grooves (7) is relative with moulded board (8) and establish, moulded board (8) lower end is connected with a plurality of oblique top pins (9), oblique top pin (9) is connected on the face needle plate (10) by movable pulley (12), it is characterized in that: be provided with piston (13) in the upper end of embossing grooves (7), described piston (13) is made of hydraulic cylinder and catch bar.

2. piston type injection mold according to claim 1 is characterized in that: be provided with a plurality of mould posts (4) between described dynamic model (3) and the understructure.

3. piston type injection mold according to claim 1, it is characterized in that: described understructure comprises interior base (5) and outer base (6).

4. piston type injection mold according to claim 3, it is characterized in that: described needle plate (10) is fixed on the interior base (5) by shanks of a plurality of ends (11).

5. piston type injection mold according to claim 1 is characterized in that: the two ends of described needle plate (10) are provided with the locating piece that limits movable pulley (12) limit of sports record position.

6. according to the described piston type injection mold of one of claim 1-5, it is characterized in that: the space that has relative motion between described dynamic model (3) and the oblique top pin (9).