CN2825257Y

CN2825257Y - Vertical molding die

Info

Publication number: CN2825257Y
Application number: CN 200520038000
Authority: CN
Inventors: 张建中; 周莉; 臧树良
Original assignee: Fushun Vocationl Technical College
Current assignee: Fushun Vocationl Technical College
Priority date: 2005-01-11
Filing date: 2005-12-27
Publication date: 2006-10-11
Anticipated expiration: 2015-12-27

Abstract

The utility model discloses a vertical type molding die used for processing a test sample of an impact test method of a rigid plastic simply supported beam which conforms to national standard (GB/T1043-93) plastics. The utility model is composed of a base, a main body of a die, and a clamping device, wherein the main body of the die comprises a vertical type die casing, a side baffle plate and an isolating belt which divides an inner cavity enclosed by the vertical type die casing and the side blocking plate into a plurality of die cavities; the lower part of each isolating belt is provided with a ditch groove which is communicated with each die cavity; the outer side walls of the die cavities at both ends are provided with air exhausting holes which are communicated with the die cavities; a convex body of the same width with the rear side wall of the die cavity is horizontally installed on the vertical middle position of the rear side wall in the die cavity; the upper part of the main body of the die is provided with a material storing groove, and the bottom of the groove is provided with a material feeding opening which is communicated with every die cavity; the clamping device which fixes the side baffle plate on a shell body of the die is installed at the outer side of the main body of the die. The utility model which adopts the structure effectively eliminates the deficiency caused by the gas in the die cavities to the test sample. The utility model which fundamentally improves the quality of a product reduces the disability rate of the test sample and reduces the processing cost.

Description

Vertical-forming die

One, technical field

The utility model belongs to the Machining Technology field, is specifically related to a kind of mould that processing meets the sample of national standard (GB/T1043-93) plastics rigid plastics charpy impact test method that is used for.

Two, background technology

The plastics rigid plastics charpy impact test method of national standard (GB/T1043-93) need provide five samples to be tested with identical standard size.Tradition is used for the sample of this type of Mechanics Performance Testing, is to adopt the method for machine cut to prepare.Because the required precision of test sample is higher, guarantee that error is in the accuracy rating of ± 0.2mm.And to reach above-mentioned required precision, its process is very difficult, and wastes time and energy.At present, prepare this type of sample to be tested and adopt the higher die methods of machining accuracy more.But because some mould structures are reasonable inadequately, make raw materials such as adopting plastics, monomer cast nylon and rubber when in-mold molding, in the die cavity or the air in the goods can not drain, cause the sample of processing defectives such as gas, folder water wave, misrun, burr and pore to occur being stranded.The mould of horizontal type structure particularly, product also defectives such as contraction, bubble can occur in forming process.Can't be used for the mensuration of this test method at all, cause sample to be scrapped in a large number, processing cost also increases thereupon.

Three, summary of the invention

The purpose of this utility model provides a kind of vertical-forming die with degassing function, and it can eliminate the defective of product, the yield rate of raising sample effectively, cuts down finished cost.

For achieving the above object, the technical solution adopted in the utility model is: die main body and anchor clamps by pedestal, pedestal top are formed; Die main body comprises: the isolation strip that is vertically fixed on the vertical die housing on pedestal top, dismountable active side baffle plate and installs perpendicular to pedestal in the chamber that both surround, inner chamber is separated into a plurality of die cavitys; Have the groove that leads to each die cavity in the bottom of each isolation strip, on the lateral wall of two ends die cavity, have the steam vent that communicates with this die cavity, in die cavity on the vertical centre position of rear wall, be horizontally installed with length and the identical convex body of die cavity rear wall width, be provided with stock chest on die main body top, bottom land has the charging aperture that leads to each die cavity; Side shield is fixed on anchor clamps on the mould housing, is installed in the outside of die main body.

Owing to adopted on the isolation strip of die cavity and had groove, at the lateral wall of the die cavity at two ends steam vent is arranged, just make each die cavity communicate with the external world.Like this, raw material in the forming process, just will be present in the gas that reaches in the die cavity in the raw material at an easy rate and directly get rid of from the working face of die cavity in the die cavity of die main body.Eliminated the defective that gas causes sample effectively.Simultaneously, because the die main body after the combination is a vertical structure, so also eliminated the horizontal die defective that product occurs in forming process.Fundamentally improved the quality of product, reduced the scrappage of sample, processing cost reduces greatly.

Four, description of drawings

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

Fig. 2 is the structural representation of the wedge shape convex body of the utility model employing;

Fig. 3 is the structural representation of the cuboid convex body of the utility model employing;

Fig. 4 is a vertical view of the present utility model.

Five, the specific embodiment

By Fig. 1, Fig. 4 as seen, the utility model is made up of the pedestal 9 of stainless steel, the metal die main body on pedestal 9 tops and the anchor clamps 11 in the die main body outside; Die main body comprises: be vertically welded in the vertical die housing 3 on pedestal 9 tops, dismountable active

side baffle plate

10 and 4 isolation strip 79 that install perpendicular to pedestal in the chamber that both surround, that inner chamber is separated into 5 die cavitys 5; The size of die cavity 5, identical with the standard size of sample in national standard (GB/T1043-93) the plastics rigid plastics charpy impact test method, its length (being the lateral length of die cavity) is 10mm, and width (being vertical width of die cavity) is 4mm, and highly (being the vertical height of die cavity) is 80mm; Have the groove 8 that leads to each die cavity in the bottom of each isolation strip 7, on the lateral wall of two ends die cavity 5, have the steam vent 4 that communicates with this die cavity; In order on sample, to form the breach that meets requirement of experiment, in die cavity 5, on the vertical centre position of rear wall, be horizontally installed with length and the identical convex body 6 of die cavity 5 rear wall width.For realizing being applicable to respectively the moulding of A, B, C type notched specimen, convex body 6 can adopt following shape and specification: the A type: employing bottom surface 13 is fixed on the wedge shape convex body on die cavity 5 rear walls, drift angle angle θ is 45 °, drift angle is that arc radius is the fillet of 0.25mm, and high is that 1/5 of die cavity width is 0.8mm.Type B: employing bottom surface 13 is fixed on the wedge shape convex body on die cavity 5 rear walls, and drift angle angle θ is 45 °, and drift angle is that arc radius is the fillet of 1mm, and high is that 1/5 of die cavity width is 0.8mm.The C type: employing bottom surface 14 is fixed on the cuboid convex body on die cavity 5 rear walls, and wide is 2mm, and high is that 1/3 of die cavity width is 1.33mm; Also being provided with stock chest 2 on die main body top, is to be constituted by the inclined plane that is located at mould housing 3 and side shield 10 upper ends, and bottom land has the charging aperture 1 that leads to each die cavity, and raw material from then on charging aperture 1 enters in the die cavity; The die main body outside is equipped with side shield 10 is fixed on anchor clamps 11 on the mould housing 3.Side shield 10 is the rectangle riser, is to dock with housing 3 at mould housing 3 front openings places.Anchor clamps 11 are groove shape structures of being made by metal material, and its side is provided with fastening screw 12.During processing sample, side shield 10 is fitted in mould housing 3 opening parts, the groove of 4 metal fixtures 11 is buckled in the upper and lower end of die main body both sides respectively, screw screw rod 12, two parts are tightened together, at this moment, pour raw material into stock chest 2, enter die cavity by charging aperture 1 and carry out processing and forming, behind the cooling forming, unclamp screw rod 12, open metal fixture 11, take off side shield 10, the sample taking-up of moulding is standby.

Claims

1, a kind of vertical-forming die is characterized in that being made up of the die main body and the anchor clamps (11) on pedestal (9), pedestal (9) top; Die main body comprises: the isolation strip (7) that is vertically fixed on the vertical die housing (3), dismountable active side baffle plate (10) on pedestal (9) top and installs perpendicular to pedestal (9) in the chamber that both surround, inner chamber is separated into a plurality of die cavitys (5); Have the groove (8) that leads to each die cavity (5) in the bottom of each isolation strip (7), on the lateral wall of two ends die cavity (5), have the steam vent (4) that communicates with this die cavity, in die cavity (5) on the vertical centre position of rear wall, be horizontally installed with the length convex body (6) identical with die cavity rear wall width, be provided with stock chest (2) on die main body top, bottom land has the charging aperture (1) that leads to each die cavity; Side shield (10) is fixed on anchor clamps (11) on the mould housing (3), is installed in the outside of die main body.

2, vertical-forming die according to claim 1 is characterized in that described anchor clamps (11) are the groove shape structures of being made by metal material, and its side is provided with fastening screw (12).

3, vertical-forming die according to claim 1 is characterized in that described stock chest (2) is to be constituted by the inclined plane that is located at mould housing (3) and side shield (10) upper end.

4, vertical-forming die according to claim 1 is characterized in that described convex body (6) employing bottom surface (13) is fixed on the wedge shape convex body on die cavity (5) rear wall.

5, vertical-forming die according to claim 1 is characterized in that described convex body (6) employing bottom surface (14) is fixed on the cuboid convex body on die cavity (5) rear wall.