SU1507514A1 - Mould for casting chains with spacers - Google Patents

Abstract

The invention relates to foundry, in particular to molds for casting chains with struts for fusible agents of all types, and can be used to cast any length of bows of chains of various calibers. The purpose of the invention is to improve the quality of the cast chains, simplify the design of the mold and create conditions for the mechanization of the assembly process. The form consists of three opening metal parts 1, 2, 3 with 6.7 insertable quick-change metal inserts with thermal protection lining, having cavities for forming part of the chain link 9. The opening metal parts have recesses for the sign parts of the whole intragranular sand bar 8. It has a chain link spreader 9 and has grooves for partially forming the surfaces of adjacent chain links. The assembled adjacent shapes are connected by an intersite flat sand core 12. The rod 12 is made with through cavities for partially forming the surfaces of two adjacent chain links. A part of the chain link is formed by a sand rod 13 of a triangular cross section, in which the main part of the feed profit is made 14. The casting system is made in the upper covering sand core 15. The use of this form will improve the quality of the cast chains, reduce labor intensity and cost. 6 Il.

Description

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VIY mechanization of the assembly process. The form consists of three opening metal parts 1, 2, 3 with insert quick-change metal inserts 6 and 7 with thermal protection lining, having cavities for forming part of the chain link 9. The opening metal parts have recesses for the sign parts of the whole inner sand core 8. The rod 8 forms the chain link strut 9 and has grooves for partially forming the surfaces of the adjacent chain links. Collected adjacent for-

we are connected by an inter-stratum flat sand core 12. The rod 12 is made with through cavities for partially shaping the surfaces of two adjacent chain links. A part of the chain link is formed by a sand rod 13 of a triangular cross section, in which the main part of the feed profit is made 14. The casting system is made in the upper covering sand core 15. The use of this form improves the quality of the cast chains, reduces labor intensity and cost. 5 il.

The invention relates to a foundry, in particular, to the design of a mold for casting core chains with spacers for floating equipment of all types, and can be used for starting any length of bows of chains of various gauges.

The purpose of the invention is to improve the quality of tsetse cast, simplify the design of the mold and create conditions for the mechanization of the assembly process. , Figure 1 shows the assembly form, the overall appearance; figure 2 - line assembled forms, the section; figure 3 - the form in the collection, the cross-section; figure 4 - intradermal rod, a General view; figure 5 is a form in the collection, top view.

The form consists of the base 1, the side metal parts 2 and 3, and the hinge joints on the base with the planes 4 and 5 of the connector. The form is equipped with metal liners 6 and 7 with a thermal insulation lining. The metal parts 2 and 3 have a recess for insertion of an intra ‑ sand sand core 8 that forms the inside of the cavity for the chain link with the side cavities 9 and the central hole for the chain link spacer. The upper side metal part 3 is moved in the direction of the arrows 10. On the base 1, there are stops 11 for mounting the interlinking rod 12 pressed against the rod 8 and to the upper sand rod 13 of the profit-making triangular section, which performs the main part of the feeding device 14.

The inter-link rod 12 partially etches the surfaces of two adjacent chain links and connects adjacent shapes. The upper covering sand core 15 has a trapezoidal section and forms a gating system fed through a funnel 16. When mating two assembled adjacent shapes, the end planes of the rods of two intra-sand rods 8, two upper sand rods 13 of a triangular cross-section, one inter-liner, join in translational motion sand core 12 and two upper sand covering rods 15 of trapezoidal section. The chain link when casting in a mold is located at an angle to the horizontal plane, which is 4 5-50, and are drawn into a line along arcs. In the sign groove there is a groove 17, which serves to accurately assemble the kit, to collect garbage and to remove gases. A quick-change metal insert 6 is inserted into the base 1, consisting of two halves, with a relatively thin thermal insulation lining 18.

The use of quick-change metal liners 6 and 7 with thermal insulating linings creates directional solidification of the metal from bottom to top, which increases the quality of the casting, saves molding materials and simplifies the process of assembling and disassembling the molds.

The form works as follows.

In the initial position, the metal parts 2 and 3 are retracted along the guides to the right and opened along the planes 4 and 5. During the assembly, the metal inserts 6 are installed, the lower side metal part 2 is closed. An intra-link sand core 8 is installed in the recess of the base 1 and the lower side metal part 2. The metal insert 7 is installed. The upper side metal part 3 is lowered onto the lower one in the direction of the arrows 10. Lower left, to the special stops 11 of the lower metal part 1 of the form the inter-nets, metal inserts 6 and, together with the side metal parts 2 and 3, are diverted laterally. The cast chain is removed from the mold upwards together with sand cores and it is fed to the embossing grid and further to the subsequent processing. The metal parts and 3 are cleaned, the metal liners, if the insulating lining is damaged, are replaced with new ones. The form is ready for the next cycle.

In the form, due to the sequential combination of the materials applied, the sand core 12, which is in- | 5 ° parts (sand, metal

and thermal barrier coatings) create favorable conditions for the successive solidification of the liquid metal. Conditions are created that reduce the resistance of the shape of the shrinkage of the link in comparison with the all-metal coca retherm with thermal protection cladding, which leads to the elimination of hot cracks and improved feeding of the casting. As a result of directional solidification and compact profits, the metal consumption is reduced. The molding material consumption is significantly reduced. The chain can be cast almost any length. The possibility of mechanization of labor-intensive operations increases. The number of link defects is significantly reduced. All mold sets are mounted on the carousel table or the casting conveyor, which allows you to assemble, cast the molds and knock out castings in certain places. This organizes the technological process and concentrates the materials in certain places.

pressing the frame with the supplied rod 8 and metal inserts 6 and 7. The upper sand rod 13 is installed. Down to the right of the stops 11, a second intersink sand rod 12 is pressed, which presses against the inside of the steep sand core 8, only on the right side, to The upper sand rod 13 is triangular in section and the metal liners 6 and 7. An upper covering rod 15 is installed on the upper sand rod 13. The assembled form is moved to the left along the guides and pressed against the frame of the assembled form. The assembled form is loaded to prevent the upper sand core 15 from being lifted by the liquid metal. The following form is assembled in the same way, except that there are no simple steps of the inter-link rods 12. These rods make up the link segments of the adjacent forms, connect them and place them on metal stops 11, located on both sides of the metal base 1, and for the accuracy of assembly and simplicity of construction, lugs are provided not with each mold, but through one. It is obtained that the inter-link rods 12 are installed through one set. In the same way, the assembly of the remaining forms. A sprue funnel 16 is installed through which the six molds are poured. The metal through the sprue funnel 16, one hundred k, the sprue run 19 is fed into profit 14 and only from profit into the cavity that forms the chain link, which drastically reduces the blockage marriage, prevents erosion and, therefore, improves the quality of the casting. After pouring and delaying the time required to harden the chain link, in the knockout position of the unloading kit

The metal inserts 6 and 7 together with the side metal parts 2 and 3 are diverted laterally. The cast chain is removed from the mold upwards along with the sand cores and it is fed to the embossing grid and further to the subsequent processing. The metal parts 2 and 3 are cleaned, the metal liners, if the thermal insulation lining is damaged, are replaced with new ones. The form is ready for the next cycle.

In the form due to the sequential combination of the materials used (parts of the sand, metal

and thermoprotective linings) favorable conditions are created for the subsequent solidification of the liquid metal. Conditions are created that reduce the resistance of the shape of the shrinkage of the link in comparison with all-metal paint with thermal protection cladding, which leads to the elimination of hot cracks and improved feeding of the casting. Due to directional hardening and compact profits, the metal consumption is reduced. The consumption of molding materials is significantly reduced. The chain can be cast almost any length. The possibility of mechanizing labor-intensive operations increases. The number of link defects is significantly reduced. All mold sets are mounted on the carousel table or the casting conveyor, which allows you to assemble, cast the molds and emboss the castings in certain places. This organizes the process and concentrates materials in certain places.

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The possibility of mechanization of the assembly process is provided by the design of the form, which includes the presence of metal inserts, simplifying the assembly of the form, and the minimum number of rods forming cavities under the chain link. For ease of assembly, all the forms have a reciprocating movement along the guides on the cone-weir or the carousel table. This improves the organization of work, eliminates the carrying of rods along the assembly line, and increases the possibility of mechanization of the manufacturing process of the chain. The location of the chain links and profits in the manufacture of the proposed fyrme makes it possible to mechanize the process of separation of the latter from the steels, since the profits are at the same level and are located along the links of the chain on one side.

The proposed form significantly reduces the labor intensity and cost of manufacturing casting chains.

Claims (1)

Formula invented Scientific research institute A form for casting chains with struts containing sandblasted blocks of sand cores that form cavities for chain links, profits and a gating system, and side metal walls, in order to improve the quality of the cast chains, simplify the design of the form and mechanization of the assembly process, the side metal walls are jointly closed; VU2, 1 The sand cores are replenished on the base, and the sand core block consists of an intra-spinal sand core with side cavities for forming the inner surfaces of the link and a hole for the spacer, an inter-link sand core for forming the outer cavity of the link connected to the intra-syllable core and the adjacent sand core block, a sand core for profit making, connected to the intra stem link, the inter-link rod and the inter-link stem of the adjacent block, a sand core for the decoration of the gating system, is located the top of the rod for the decoration of profits, as well as of metal liners with thermal insulation, connected to the base and the intra-link rod. / 6 (} needles Compiled by E. Budanov Editor M. Petrov Tehred I. Veres Proofreader V. Kabatsy Order 549A / 15 Circulation 711 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., D / 5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Subscription