CN101670428A

CN101670428A - Casting method of grinding rod

Info

Publication number: CN101670428A
Application number: CN200910197141A
Authority: CN
Inventors: 蒋春生
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-14
Filing date: 2009-10-14
Publication date: 2010-03-17
Anticipated expiration: 2029-10-14
Also published as: CN101670428B

Abstract

The invention relates to a casting method of a grinding rod, which comprises the following steps: one or more first mould assemblies are connected in series to obtain a first mould assembly of the length of the grinding rod to be casted, the first mould assembly is provided with a work surface, and a first casting slot is formed along the axial direction of the work surface; one or more second mould assemblies are connected in series to obtain a second mould assembly of the length of the grinding rod to be casted, the second mould assembly is provided with a work surface, and a second castingslot is formed along the axial direction of the work surface; the first mould assembly and the second mould assembly which are assembled and connected in series enable work surfaces to be in mutual split joint, and the first casting slot and the second casting slot form a casting space; liquid steel is poured into the casting space from an opening of the casting space; and the grinding rod is manufactured after the liquid steel is cooled and formed. The method uses the series connection of a plurality of mould assemblies for casting, reduces the proportion of the length and the width of the mould in the casting process, and can overcome the breakage problem caused by heat expansion and cold contraction.

Description

Casting method of grinding rod

Technical field

The present invention relates to a kind of casting method, refer to a kind of casting method of grinding rod especially.

Background technology

As shown in Figure 1, be the grinding rod of using in the general grinder, this kind grinding rod is placed in the grinder, and grinder rotates with certain speed and drives many grinding rods rollings that are placed in wherein, thus the bulky grain material that will enter grinder is smashed; Mostly present grinding rod is to make by Forging Technology, but the manufacturing cost of forging is very high, and Forging Technology labour intensity is big, poor working environment, and workpiece is long heat time heating time; And by comparison, with society is scientific and technological must be progressive, foundry engieering develops very soon, now a lot of casting techniques must change traditional casting method greatly, not only labour intensity is low, and is simple to operate, working environment also has very big must the variation than in the past; Cast out workpiece also than on performance, being greatly improved in the past, processing capacity is than forging also little and various complicated shapes can cast out.

For grinding rod, adopt foundry engieering can reach its requirement on intensity fully, can save cost greatly again; Only by existing casting method, it so produced corresponding strip casting die, reaches three meter grinding rod if desire to cast out length in order to cast out longilineal grinding rod, and its die length promptly can be above three meters; Reach six meters grinding rod if desire to cast out length, its die length promptly can be above six meters, though this type of mould is no problem on production technology, also can be when casting according to the grinding rod that requires to cast out suitable length, but find to exist following problem when reality is used: the first, the length of casting die is long, the production cost height transports, moves and store all existence inconvenience; The second, when needs are produced the grinding rod of multiple different length specification, need to prepare the casting die of multiple different length, cause the burden on the equipment cost; Three, because mould originally also must bear the variations in temperature of expanding with heat and contract with cold when casting, thereby the casting die of this type of strip promptly can rupture in use for some time, investigating its reason is the Aspect Ratio that is its overlength, cause its distortion when expanding with heat and contract with cold inhomogeneous, thereby promptly rupture in use for some time, this badly influences the service life of casting die, and the safety that might jeopardize operating personnel, therefore, need to provide a kind of suitable casting method to solve the problem that exists in the existing casting method really.

Summary of the invention

Therefore the technical problem to be solved in the present invention is for providing a kind of casting method of grinding rod, and it can overcome when using and to cause the problem that ruptures because of expanding with heat and contract with cold.

For solving the problems of the technologies described above, the invention provides a kind of casting method of grinding rod, may further comprise the steps: be connected in series more than one first die assembly, to obtain first die assembly of required casting grinding rod length, described first die assembly has a working face, and forms one first casting groove on described working face vertically; Be connected in series more than one second die assembly, to obtain second die assembly of required casting grinding rod length, described second die assembly has a working face, and forms one second casting groove on described working face vertically; Assemble first die assembly and second die assembly that described serial connection finishes described working face is spliced mutually, thereby make the described first casting groove and the second casting groove composition casting space; Seal an opening of described casting space, steel juice is injected casting space from another opening of described casting space; After treating steel juice cooling forming, make described grinding rod.

By said method, cast by a plurality of die assemblies serial connection, reduced the Aspect Ratio of mould in the casting cycle, can overcome when using and to cause the problem that ruptures because of expanding with heat and contract with cold.

Further improvement of the present invention is, the corresponding plural groups lock slots of offering of working face side that splices mutually at described first die assembly and second die assembly, thus be locked in the assembling of finishing in the described lock slots described first die assembly and second die assembly respectively by a plurality of bolts.

Further improvement of the present invention is, at described first die assembly of assembling during with second mould, positions by locating convex block and the locating hole that is arranged at respectively on the working face separately earlier.

Description of drawings

Fig. 1 is the shape schematic diagram of the grinding rod mentioned among the present invention;

Fig. 2 is the schematic perspective view of the mould used in the casting method of the present invention;

Fig. 3 is the schematic perspective view of first die assembly serial connection of the mould used in the casting method of the present invention;

Schematic perspective view when Fig. 4 splits for the mould of using in the casting method of the present invention.

The specific embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments.

Consult shown in Figure 2, casting die of the present invention can be composed in series (being to show two schematic perspective views that die unit combines shown in the figure) mutually by more than one die unit, wherein each die unit is assembled by first die assembly 10 and second die assembly 20 respectively, wherein first die assembly 10 is identical with second die assembly, 20 shape and structures and for being symmetrical arranged, and introduces its architectural feature so sentence first die assembly 10 in detail for example.

As having shown two first die assemblies 10 of serial connection mutually among Fig. 3, first die assembly 10 comprises a component body 11, this component body 11 comprises that one is used for and the working face 111 of second die assembly, 20 splicings and the faying face 100 that is positioned at two ends, on this working face 111, offer the first casting groove 112 vertically, be formed with the groove 113 of some symmetries on end face that component body 11 and working face 111 are adjacent and the bottom surface at interval, each groove 113 includes a groove floor 1131 and four sidewalls 1132, wherein is positioned on the sidewall 1132 of working face 111 sides to offer several lock slots 1133; On the sidewall 1132 that is positioned at faying face 100 places, be formed with an engagement groove 1001 in addition;

Second die assembly, 20 relative first die assemblies 10 are arranged with the identical working face of structure, faying face, the second casting groove and lock slots, engagement groove;

As preferred embodiment of the present invention, as shown in Figure 3, the working face 111 of first die assembly 10 is provided with a plurality of locating convex blocks 114, relative corresponding locating convex block 114 positions on the working face of second die assembly 20 offer locating hole 115, make the easier location of die assembly by locating convex block 114 and cooperating of locating hole 115 when assembly unit.

Cooperate shown in Figure 4ly again, the schematic perspective view when the two molds unit that wherein is depicted as the utility model casting die separates wherein promptly demonstrates casting die of the present utility model and can be combined by a plurality of die units and form the casting die of a Len req; The carrying of mould is convenient in this kind design, and can be according to the grinding rod of different needs splicing casting random lengths; And, on each subassembly, be respectively equipped with suspension ring 12 to make things convenient for the carrying of mould.

In the time of need building, at first carry out the assembly unit of mould: be connected in series more than one first die assembly 10 and second die assembly 20, finish the assembly location by locating convex block 114 and locating hole 11, described working face and lock slots align, utilize the bolt (not shown) to be locked in the lock slots of first die assembly 10 and second die assembly 20, this moment first, the casting groove 112 and the second casting groove were promptly formed the casting space of casting die; The knockdown mould of this kind has effectively shortened its length-width ratio, and can significantly reduce the breakage problem that causes because of expanding with heat and contract with cold; Seal an opening of described casting space then, steel juice is injected casting space from another opening of described casting space;

After treating steel juice cooling forming, make described grinding rod.

Claims

1. casting method of grinding rod is characterized in that may further comprise the steps:

Be connected in series more than one first die assembly, to obtain first die assembly of required casting grinding rod length, described first die assembly has a working face, and forms one first casting groove on described working face vertically;

Be connected in series more than one second die assembly, to obtain second die assembly of required casting grinding rod length, described second die assembly has a working face, and forms one second casting groove on described working face vertically;

Assemble first die assembly and second die assembly that described serial connection finishes described working face is spliced mutually, thereby make the described first casting groove and the second casting groove composition casting space;

Seal an opening of described casting space, steel juice is injected casting space from another opening of described casting space;

After treating steel juice cooling forming, make described grinding rod.

2. the method for claim 1, it is characterized in that further comprising the steps of: on each faying face of first die assembly of described mutual serial connection and second die assembly, offer engagement groove respectively, be locked in the described engagement groove with removable shape by a plurality of bolts.

3. the method for claim 1 is characterized in that further comprising the steps of:

The corresponding plural groups lock slots of offering of working face side that splices mutually at described first die assembly and second die assembly, thus be locked in the assembling of finishing in the described lock slots described first die assembly and second die assembly respectively by a plurality of bolts.

4. method as claimed in claim 1 or 2 is characterized in that further comprising the steps of:

When assembling described first die assembly and second mould, position earlier by locating convex block and the locating hole that is arranged at respectively on the working face separately.