CN215966170U

CN215966170U - Combined type adapter sand core

Info

Publication number: CN215966170U
Application number: CN202121235570.0U
Authority: CN
Inventors: 盛建春; 吴炎振
Original assignee: Changzhou Kasitelv Precision Casting Technology Co ltd
Current assignee: Changzhou Kasitelv Precision Casting Technology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-03-08
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a combined adapter sand core, which comprises a sand core body, wherein a V-shaped bulge and a rectangular bulge are respectively extended outwards from the lower part and the side surface of the sand core body, a plurality of inserting holes are formed in the upper surface of the sand core body, one ends of a first sand core pipe and a second sand core pipe are respectively inserted into the inserting holes in the rectangular bulge, the other ends of the first sand core pipe and the second sand core pipe are respectively inserted into two sides of the upper surface of the sand core body, one ends of a third sand core pipe and a fourth sand core pipe are mutually overlapped and fixed on the upper surface of the V-shaped bulge, and the other end of the third sand core pipe is connected with the other end of the fourth sand core pipe through a connecting bolt, and the combined adapter sand core has the beneficial effects that: this psammitolite is equipped with the connecting bolt in the position that the mould corresponds, is connected with the draw-in groove through connecting the bolt, improves the fixed stability of psammitolite to improve the quality of work piece, reduce the incomplete probability of work piece.

Description

Combined type adapter sand core

Technical Field

The utility model relates to a combined adapter sand core, and belongs to the technical field of sand core molds.

Background

The material for making the core in the casting production is generally formed by mixing casting sand, a molding sand binder, an auxiliary material and other molding materials according to a certain proportion. The core is mostly surrounded by the high temperature liquid metal in the mold, and the size of the supporting and positioning portion is generally small, so that the core sand should have high strength, air permeability, collapsibility, and collapsibility in addition to the performance of the general molding sand. The core sand is divided into clay core sand, water glass core sand, oil core sand, synthetic fat core sand, resin core sand and the like according to different binders. Cores of simple shape, typically made from clay core sand; the core with complicated shape, thin section, high dry strength and good collapsibility is made of oil core sand, synthetic resin core sand or resin core sand. The vegetable oil sand core can obtain a very smooth casting, but the used tung oil, linseed oil, modified rice bran oil and the like have scarce sources and high price. Therefore, since 1963, Chinese has widely adopted the residue (called synthetic fat for short) after preparing synthetic fatty acid by soap-making industry as binder. Such core sand has a dry strength, deformability and collapsibility similar to oil core sand. When the oil core sand and the combined grease core sand are used for manufacturing the sand core, the core before hardening has the problems of quite low strength, easy deformation, slow hardening speed, long production period, need of drying and the like, the size precision and the production efficiency of a casting are influenced, and the resin is used as the core sand of a binder, which comprises the following steps: self-hardening resin core sand, ester-hardened water glass core sand, precoated sand core sand, hot core box core sand and cold core box core sand. The production of small-batch castings can adopt self-hardening binder core sand, the production of large-batch castings can adopt hot core box core sand and cold core box core sand, and the castings can adopt precoated sand core sand according to special requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a combined type adapter sand core and aims to solve the problem that a combined type sand core is difficult to fix in a mold.

In order to achieve the above purpose, the utility model provides the following technical scheme: the sand core comprises a sand core body, wherein a V-shaped protruding part and a rectangular protruding part are respectively and outwards extended from the lower part and the side surface of the sand core body, a plurality of inserting holes are formed in the upper surface of the sand core body, one ends of a first sand core pipe and a second sand core pipe are respectively inserted into the inserting holes in the rectangular protruding part, the other ends of the first sand core pipe and the second sand core pipe are respectively inserted into two sides of the upper surface of the sand core body, one ends of a third sand core pipe and a fourth sand core pipe are mutually overlapped and fixed on the upper surface of the V-shaped protruding part, and the other end of the third sand core pipe is connected with the other end of the fourth sand core pipe through a connecting bolt.

Furthermore, the back side end face of the sand core body is provided with a clamping part protruding outwards.

Furthermore, a first fixing clamping groove is formed in the middle upper surface of the second sand core pipe, a second fixing groove is formed in the middle upper surface of the third sand core pipe, and a third fixing groove is formed in the middle upper surface of the fourth sand core pipe.

Further, the upper surfaces of the first sand core pipe, the second sand core pipe and the third sand core pipe are respectively provided with a circular groove near the end part.

Furthermore, threaded holes are formed in two side faces of the connecting bolt respectively, threads are formed in the outer surface of one end of the third sand core pipe and connected with the connecting bolt, and threads are formed in the outer surface of one end of the fourth sand core pipe and connected with the connecting bolt.

The utility model has the beneficial effects that:

(1) this psammitolite is equipped with the connecting bolt in the position that the mould corresponds, is connected with the draw-in groove through connecting the bolt, improves the fixed stability of psammitolite to improve the quality of work piece, reduce the incomplete probability of work piece.

(2) The upper surface has seted up first fixed slot in the middle of the second psammitolite pipe, and the second fixed slot has been seted up to the upper surface in the middle of the third psammitolite pipe, and the third fixed slot has been seted up to the upper surface in the middle of the fourth psammitolite pipe, and the upper surface of first psammitolite pipe, second psammitolite pipe and third psammitolite pipe is close to the end and is equipped with the circular recess respectively, is connected with fixed slot and circular recess through the connecting bolt in the mould, improves the stability of psammitolite in the mould.

(3) Threaded holes are respectively formed in two side faces of the connecting bolt, threads are arranged on the outer surface of one end of the third sand core pipe and connected with the connecting bolt, threads are arranged on the outer surface of one end of the fourth sand core pipe and connected with the connecting bolt, the connecting bolt is connected and fixed in a threaded mode, the connecting stability is improved, and the problem that workpieces are incomplete due to the fact that connecting parts are damaged in the process of casting the workpieces is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the present invention;

FIG. 3 is a partial schematic view of a balancing assembly of the present invention.

In the figure, 1 is a sand core body, 2 is a first sand core pipe, 3 is a second sand core pipe, 4 is a third sand core pipe, 5 is a fourth sand core pipe, and 6 is a connecting bolt;

1 a-V-shaped bulge, 1 b-rectangular bulge and 1 c-clamping part;

3 a-a first fixed card slot, 4 a-a second fixed slot, 5 a-a third fixed slot.

Detailed Description

The utility model will now be described in further detail with reference to specific embodiments and the accompanying drawings. The following examples are intended to provide those skilled in the art with a more complete understanding of the present invention, and are not intended to limit the scope of the present invention. Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Referring to fig. 1 to 3, the present invention provides a technical solution: the sand core comprises a sand core body 1, a V-shaped protruding portion 1a and a rectangular protruding portion 1b extend outwards from the lower portion and the side face of the sand core body 1 respectively, a plurality of inserting holes are formed in the upper surface of the sand core body 1, one ends of a first sand core tube 2 and a second sand core tube 3 are inserted into the inserting holes in the rectangular protruding portion 1b respectively, the other ends of the first sand core tube 2 and the second sand core tube 3 are inserted into two sides of the upper surface of the sand core body 1 respectively, one ends of a third sand core tube 4 and a fourth sand core tube 5 are fixed on the upper surface of the V-shaped protruding portion 1a in an overlapped mode, the other end of the third sand core tube 4 is connected with the other end of the fourth sand core tube 5 through a connecting bolt 6, a connecting bolt is arranged at a position corresponding to a die of the sand core, the fixing stability of the sand core is improved through the fixing bolt and a clamping groove, the quality of a workpiece is improved, and the probability of workpiece incomplete is reduced.

Please refer to fig. 2: the back side end face of the sand core body 1 is provided with a clamping part 1c protruding outwards, the bottom of the sand core body is stably clamped on one side of the die, and the sand core is prevented from being separated in the process of casting a workpiece.

Please refer to fig. 1: the middle upper surface of the second sand core pipe 3 is provided with a first fixing clamping groove 3a, the middle upper surface of the third sand core pipe 4 is provided with a second fixing groove 4a, the middle upper surface of the fourth sand core pipe 5 is provided with a third fixing groove 5a, the upper surfaces of the first sand core pipe 2, the second sand core pipe 3 and the third sand core pipe 4 are respectively provided with a circular groove near the end part, and the fixing bolts in the mold are connected with the fixing grooves and the circular grooves, so that the stability of the sand core in the mold is improved.

Threaded holes are respectively formed in two side faces of the connecting bolt 6, the outer surface of one end of the third sand core pipe 4 is provided with threads and is connected with the connecting bolt 6, the outer surface of one end of the fourth sand core pipe 5 is provided with threads and is connected with the connecting bolt 6, the connecting bolt is fixedly connected in a threaded mode, the connecting stability is improved, and the problem that workpieces are incomplete due to the fact that the connecting parts are damaged in the process of casting the workpieces is solved.

The working principle is as follows: referring to fig. 1 to 3, a sand core is placed in a mold, the bottom of a sand core body 1 is fixed in a groove corresponding to a main mold, an auxiliary mold is fastened on the upper portion of the main mold, a corresponding fixing bolt in the auxiliary mold is connected with a circular groove on the surface of the sand core, and the auxiliary mold is fastened with the main mold for casting.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A modular adapter psammitolite which characterized in that: the sand core comprises a sand core body (1), wherein a V-shaped protruding portion (1 a) and a rectangular protruding portion (1 b) extend outwards from the lower portion and the side face of the sand core body (1) respectively, a plurality of inserting holes are formed in the upper surface of the sand core body (1), one ends of a first sand core pipe (2) and a second sand core pipe (3) are inserted into the inserting holes in the rectangular protruding portion (1 b) respectively, the other ends of the first sand core pipe (2) and the second sand core pipe (3) are inserted into two sides of the upper surface of the sand core body (1) respectively, one ends of a third sand core pipe (4) and a fourth sand core pipe (5) are overlapped and fixed on the upper surface of the V-shaped protruding portion (1 a), and the other end of the third sand core pipe (4) is connected with the other end of the fourth sand core pipe (5) through a connecting bolt (6).

2. The modular adapter sand core of claim 1, wherein: the back side end face of the sand core body (1) is provided with a clamping part (1 c) protruding outwards.

3. The modular adapter sand core of claim 1, wherein: the middle upper surface of the second sand core pipe (3) is provided with a first fixing clamping groove (3 a), the middle upper surface of the third sand core pipe (4) is provided with a second fixing groove (4 a), and the middle upper surface of the fourth sand core pipe (5) is provided with a third fixing groove (5 a).

4. The modular adapter sand core of claim 1, wherein: and the upper surfaces of the first sand core pipe (2), the second sand core pipe (3) and the third sand core pipe (4) are respectively provided with a circular groove near the end part.

5. The modular adapter sand core of claim 1, wherein: threaded holes are formed in two side faces of the connecting bolt (6) respectively, threads are arranged on the outer surface of one end of the third sand core pipe (4) and connected with the connecting bolt (6), and threads are arranged on the outer surface of one end of the fourth sand core pipe (5) and connected with the connecting bolt (6).