CN2428233Y

CN2428233Y - Hollow-section extrusion mould

Info

Publication number: CN2428233Y
Application number: CN 99256790
Authority: CN
Inventors: 孙利涵
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-30
Filing date: 1999-12-30
Publication date: 2001-05-02
Anticipated expiration: 2009-12-30

Abstract

The utility model discloses a novel structure of a non-ferrous metal hollow sectional material extrusion die, which is characterized in that a functional structure of a traditional hollow sectional material extrusion die is decomposed, and a changeable die plate and an improved core head structure can be added between the flute at a welding chamber bottom and an upper plane of a die pad. The utility model has the advantages of safe production and use, strong practicability, convenient exchange, simple processing, high precision and die steel saving. The utility model can greatly reduce die cost of hollow sectional material and increase the production efficiency of hollow sectional material, and meanwhile, the utility model can adopt novel material with high quality and high strength.

Description

The hollow die tool

The utility model relates to a kind of hot-extrusion mold of non-ferrous metal hollow profile.

Non-ferrous metal hollow die tool requires very high in the intensity and the wearability of hot operation.Not only production process is various, technical difficulty is high for traditional hollow die tool, the mould steel consumption is big, service time is short etc. has caused the die cost height of hollow profile extruding, and owing to structural reason has limited various application of novel material and performance always.In a large amount of production practices of nearly aluminium alloy extrusions about ten years, hollow die has had bigger change, has also adopted inserted matrix compound mode, but still has structural defective.As inlay matrix and die-cushion touching position the processing of die-cushion plane planarization, repair than difficulty etc., influenced the force-bearing situation of matrix, so that the superiority of this structure of influence; Moreover the core print that matches with die cavity in the hollow die tool has all limited its economy, the performance of practicality and the application of various new materials to a certain extent still for traditional core print structure or still with the parent identical material of mould etc.

The purpose of this utility model is to provide a kind of rational in infrastructure, easy to process and economy and the very strong hollow die tool of practicality.

The purpose of this utility model is to realize like this, above-mentioned hollow die tool is after having decomposed each functional structure of upper and lower mould of traditional hollow die tool, by patrix, removable pattern sheet, die-cushion or by patrix, seam mould, removable pattern sheet, die-cushion with by the core print of the formula of replacing assembly structure or the non-ferrous metal hollow die tool of being made up of the core print that surface intensified technique is handled.It is characterized in that A: the counterdie of traditional hollow die tool is changed over pure die-cushion function, and the function with former counterdie seam chamber designs below the tap hole of patrix simultaneously, combines with tap hole.The die cavity of former counterdie becomes removable pattern sheet separately, and installs in the groove that is positioned at below, seam chamber, matches with the core print of patrix, becomes by patrix, removable pattern sheet, die-cushion to be assembled into complete hollow profile mould.B: when being that counterdie with traditional hollow die tool changes over pure die-cushion function, the seam chamber function and the moulding function of former counterdie are resolved into independently seam mould and removable pattern sheet respectively, the pattern sheet is installed in the groove of the below that is positioned the seam mould, match with the core print of patrix, become by patrix, seam mould, exchangeable matrix, die-cushion etc. and be assembled into complete hollow die.

The main feature of its structure is: opening the groove that a shape, size, thickness and pattern sheet are complementary below patrix (seam chamber) below or (the seam chamber) at the seam mould with on the contacted end face of die-cushion; the bottom surface that is built in the pattern sheet in the groove reaches and the patrix that joins around the pattern sheet or the bottom surface of seam mould, all closely contacts with the last plane of die-cushion.The pattern sheet is positioned in the groove.With the patrix core print that the die cavity of pattern sheet matches, its place, work zone adopts replacing formula assembly structure or adopts surface Hardening Treatment technology at the place, work zone, as: the core print that technologies such as surfacing, built-up welding new material are made.

The die-cushion upper surface of described hollow die tool is smooth raised head face; The pattern sheet of mould is in the groove that is positioned to be complementary with it below patrix (seam chamber) below or the seam mould (seam chamber) by alignment pin; The pattern sheet of mould can be the easily shape of processing such as circular, square according to the analogous shape of section bar; The core print structure of mould, cone and the round bolt that links to each other are processed in its place, work zone, the removable internal taper hole core print that adopts high-temperature wearable, high-intensity material to make assembles with the core print cone and fastening and form with the pad of pin key and the making of high-strength mould steel and nut mutually in the mode of tapering; For being difficult to use above-mentioned core print structure of hollow section bar, can select the core print of surface Hardening Treatment technology for use, promptly in the position of core print work zone, adopt the material of high temperature resistant, high strength, high abrasion to carry out surface intensified techniques such as surfacing, built-up welding and handle, the core print after the processing adopts machined or waits the reconditionings cooperation by hand.The defective core print in back is used in also available this method reparation.

The utility model structure has had smooth die-cushion to support in the course of the work, and is stressed even, can design the pattern sheet very thinly.Can change immediately after the service failure.The core print that matches with the pattern sheet simultaneously also owing to the core print of the replacing formula assembly structure that has adopted new material or the core print that has adopted surface intensified technique to handle, also can reach the effect that longer-term uses.Change traditional moulds in use, even the phenomenon that the little defective in the die cavity also wants a whole set of mould to scrap.Thereby can improve mould (durable 's) life cycle significantly, thus when saving mould steel in large quantities, also reduced the machining workload significantly, improve the machining accuracy of pattern sheet effectively and improve hollow profile extruding production efficiency.Owing to adopt the utility model structure, the boss plane of die-cushion is after bearing the extruding force of certain hour, if distortion grinding equalizing on surface grinding machine is easily arranged.The application of adopting the utility model structure also to can be new material provides condition very easily, especially to the application of high strong new material under the hot conditions because of have smooth reliable die-cushion to support to have used safely into may, thereby can reduce the expense of hollow die tool more significantly.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1, Fig. 2 are the generalized section of two kinds of structures of the utility model hollow die tool.

Fig. 3, Fig. 4 are the structural representation of the core print 6 among the utility model hollow die tool Fig. 1, Fig. 2.

Fig. 5 is traditional hollow die structure generalized section of signing an undertaking.

The utility model hollow die tool is the structure at the core print 6 of the partial function structure of the counterdie 2 that has decomposed traditional hollow die tool Fig. 5 and improvement die drawing 5.Hollow die tool Fig. 1 that forms by patrix 1, die-cushion 2, pattern sheet 3, core print 6 (being Fig. 3 or Fig. 4 core print) respectively; The hollow die tool of Fig. 2 then is made up of patrix 1, die-cushion 2, pattern sheet 3, seam mould 4, core print 6 (being Fig. 3 or Fig. 4 core print).

Because hollow profile is numerous, section configuration is different, and above-mentioned utility model mould can be selected Fig. 1 structure or Fig. 2 structure according to the concrete section of hollow profile; And select corresponding core print Fig. 3 or Fig. 4 to match to form.

No matter Fig. 1 or Fig. 2 structure, the pattern sheet of separating from the counterdie 2 of traditional moulds Fig. 53 are all installed in the groove of 5 belows, seam chamber that are positioned at Fig. 1 or Fig. 2, the size of groove, shape, thickness and pattern sheet 3 are complementary.Be built in the bottom surface of the pattern sheet 3 in Fig. 1 or Fig. 2 seam chamber 5 lower grooves and the bottom surface of Fig. 1 patrix that the pattern sheet joins or the bottom surface of Fig. 2 seam mould 4 on every side and be a big concave station burnishing surface, closely contact with the burnishing surface of die-cushion 2 convex platform end faces, at the medium-sized matrix 3 of extrusion process smooth supporting surface has been arranged like this, can work safely and reliably.The shape of pattern sheet can be selected corresponding circular pattern sheet or pattern sheet such as square according to the similar shape of hollow profile section.It above the die-cushion 2 of Fig. 1, Fig. 2 a boss plane.Extruding force when it is effectively supporting 3 work such as grade of pattern sheet.The utility model hollow die tool Fig. 1, the pattern sheet 3 of Fig. 2 is a Replacement Part, can dismantle die-cushion 2 backs easily when influencing the quality of section bar and takes out pattern sheets 3 when pattern sheet 3 is impaired.Structure of the present utility model also provides possibility for the application of high-quality new material safely and reliably.The dimensional tolerance of the groove that the pattern sheet 3 of new material matches with it can be selected a suitable amount according to its corresponding thermal coefficient of expansion, raps into getting final product when making pattern sheet 3 in installation is positioned at groove.Core print 6 for the utility model Fig. 1, Fig. 2 also adopts replacing formula assembly structure such as Fig. 3 or adopts high-strength alloy to carry out surface intensified techniques processing such as surfacing, built-up welding as Fig. 4.The internal cone type core print of the high alloy material of Fig. 3 is changed part 1 and is positioned on the core print conical surface by pin key 2, and is fastening with pad 4 and nut 3 that high-intensity mould steel is made, changes also very convenient.The place, work zone 1 of core print Fig. 4 that surface intensified technique is handled, process by reconditioning after the PROCESS FOR TREATMENT such as the material spray of high temperature, high strength, high-wearing feature, built-up welding, its work zone locates 1 when impaired, also uses above-mentioned surface treatment mode reparation, to guarantee its long-term work.Core print Fig. 3, Fig. 4 can select to use according to the concrete condition of different hollow profile sections.

Claims

1, a kind of design respectively seam chamber (5) is arranged and have the replacing formula or strengthen formula core print (6) patrix (1), be built in match location fastening and patrix (1), free-standing seam mould (4), removable pattern sheet (3), die-cushion (2) that form and have the replacing formula or strengthen core print (6) of removable pattern sheet (3), die-cushion (2) in the lower grooves of patrix (1) seam chamber (5) and wait the hollow die tools of the non-ferrous metals of locating fastening compositions of matching.

2, hollow die tool according to claim 1 is characterized in that seam chamber (5) design fuses with tap hole in patrix (1).

3, hollow die tool according to claim 1 is characterized in that seam chamber (5) is designed to independently seam mould (4), forms two kinds of different structures with claim 2.

4, hollow die tool according to claim 1, its feature is that also design has removable pattern sheet (3) to be built in the groove of seam chamber (5) below of claim 2 or the described two kinds of structures of claim 3, the size of groove, size, shape and exchangeable matrix (3) are complementary, and the location are installed therebetween by alignment pin.

5, hollow die tool according to claim 1, its feature are that also die-cushion (2) upper surface is smooth boss plane and closely contacts with exchangeable matrix (3) in installation is positioned at seam chamber (5) the lower grooves plane of forming of matching.

6, hollow die tool according to claim 1, its feature are that also the core print of design on patrix (1) is changeable type core print (6) or strengthens formula core print (6) and match with the described exchangeable matrix of claim 4 (3) and form the hollow die cavity of extrudate.