Molding surface type chilling block capable of preventing internal shrinkage cavity of casting shell from loosening

Abstract

The utility model relates to the technical field of chilling blocks, in particular to a molding surface type chilling block capable of preventing a shrinkage cavity in a casting shell from loosening, which comprises a molding surface type chilling block body, an inner cooling iron ring is mounted in the molding surface type chilling block body, and a fastening ring is mounted on the left side of the inner cooling iron ring. An attaching ring is installed on the inner side wall of the forming face type chilling block body, and an inserting groove is formed in the right side surface of the attaching ring. And the inserting column is installed on the surface of the left side of the fastening ring, the inserting column is matched with the inserting groove, and a friction block is installed on one side of the surface of the attaching ring. The inner cooling iron ring is installed on the outer surface of the boss to cool the boss, when the inner cooling iron ring in the forming face type chilling block body needs to be replaced subsequently, only the forming face type chilling block body needs to be pulled out of the inner cooling iron ring, and operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cold iron, specifically to a forming surface type cold iron for preventing internal shrinkage porosity of casting shell. BACKGROUND

[0002] The turbine shell casting of the turbocharger matched with the engine is an important energy conversion accessory, most of the shell is thin-walled, generally not more than 4mm, and many bosses are arranged on the outer surface due to the need of installing other accessories, the wall thickness of the bosses is much greater than that of the shell, the shell is cooled and solidified first, so that the bosses cannot be compensated from the shell during the subsequent cooling and solidification shrinkage, resulting in shrinkage porosity or porosity, and the casting is scrapped.

[0003] To this end, the Chinese application publication No. CN107537995A discloses a forming surface type cold iron capable of preventing shrinkage porosity of the boss on the outer surface of the casting. The cold iron is made of two pieces of split type, the inner cavity is shaped in the same shape as the boss, and is placed at the boss position of the casting in the outer mold during molding. Most of the cold iron is in contact with the casting, the chilling effect is greatly improved compared with the flat type, the cooling and solidification time of the boss and the surrounding thin-walled casting is the same, and the defects of shrinkage porosity of the boss are avoided.

[0004] However, in actual use, the forming surface type cold iron is directly installed on the outer surface of the boss to cool the boss. However, in actual use, the internal part of the forming surface type cold iron will be worn out when the use frequency is high, so it needs to be replaced and used, which is troublesome in overall use. In addition, the forming surface type cold iron needs to be cooled quickly during use, so it is necessary to improve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a forming surface type cold iron for preventing internal shrinkage porosity of casting shell, to solve the problem that the forming surface type cold iron is directly installed on the outer surface of the boss to cool the boss in use, but in actual use, the internal part of the forming surface type cold iron will be worn out when the use frequency is high, so it needs to be replaced and used, which is troublesome in overall use, and the forming surface type cold iron needs to be cooled quickly during use.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a forming surface type cold iron for preventing internal shrinkage porosity of casting shell, comprising a forming surface type cold iron body, an inner cold iron ring is installed in the inside of the forming surface type cold iron body, a fastening ring is installed on the left side of the inner cold iron ring, a fitting ring is installed on the inner side wall of the forming surface type cold iron body, and a slot is formed in the right side surface of the fitting ring.

[0007] The plug column is installed on the left side surface of the fastening ring, and is matched with the plug slot.

[0008] Preferably, the surface of the profiled surface chill body is provided with a mounting ring, and the front surface of the mounting ring is provided with a first side block.

[0009] Preferably, the surface of the profiled surface chill body is provided with a mounting ring, and the front surface of the mounting ring is provided with a first side block.

[0010] Preferably, the left side of the profiled surface chill body is provided with a mounting rod, and the outer surface of the mounting rod is provided with an auxiliary ring.

[0011] Preferably, the profiled surface chill body is matched with the inner chill ring.

[0012] Preferably, the other side of the surface of the profiled surface chill body is provided with a stabilizing ring.

[0013] Compared with the prior art, the profiled surface chill has the advantages that:

[0014] 1. The profiled surface chill for preventing internal shrinkage cavity and porosity of a casting shell is provided with a profiled surface chill body, an inner chill ring, a fastening ring, a fitting ring, a plug slot, a plug column and a friction block, and the inner chill ring is integrally installed in the profiled surface chill body, the left side surface of the fastening ring is fitted on the right side surface of the fitting ring, the plug column is inserted into the plug slot, the friction block ensures the friction stability between the fitting ring and the fastening ring, the stability of the inner chill ring during installation in the profiled surface chill body is ensured, the inner chill ring is installed on the outer surface of the boss to cool the boss, and when the inner chill ring in the profiled surface chill body needs to be replaced, the profiled surface chill body can be pulled out from the inner chill ring, so that the operation is convenient and the design is practical.

[0015] 2、The forming surface type chill of preventing the shrinkage porosity inside the casting shell body is provided with the mounting ring, the first side block, the first contact block, the second side block, the second contact block, the mounting rod, the auxiliary ring and the stabilizing ring, when the forming surface type chill body and the inner chill ring are integrally installed, the surface of the forming surface type chill body can be cooled through the mounting ring, the first side block and the first contact block can be in contact with the external air, the second contact block and the second side block can also be in contact with the external air, the overall area is increased, the boss can be cooled without the shrinkage porosity inside the casting shell body, the overall cooling effect is good, the stabilizing ring can be attached to the scroll, the overall connection with the boss is stable, the forming surface type chill body can be easily installed and disassembled through the mounting rod and the auxiliary ring, and the functionality of the design is embodied. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic view of the utility model structure;

[0017] Figure 2 It is a split schematic view of the forming surface type chill body and the attaching ring structure of the utility model;

[0018] Figure 3 It is a three-dimensional schematic view of the mounting ring structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic view of the mounting rod and the auxiliary ring structure of the utility model.

[0020] In the drawing: 1, forming surface type chill body; 2, inner chill ring; 3, fastening ring; 4, attaching ring; 5, insertion slot; 6, insertion column; 7, friction block; 8, mounting ring; 9, first side block; 10, first contact block; 11, second side block; 12, second contact block; 13, mounting rod; 14, auxiliary ring; 15, stabilizing ring. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 An embodiment provided by the utility model:

[0023] The application discloses a forming surface type cold iron for preventing shrinkage porosity inside a casting shell, a forming surface type cold iron body 1 and an inner cold iron ring 2 used in the application are products that can be directly purchased on the market, the principles and connection modes thereof are prior art known by those skilled in the art, and thus will not be repeated here, including the forming surface type cold iron body 1, the inner cold iron ring 2 is installed inside the forming surface type cold iron body 1, the fastening ring 3 is installed on the left side of the inner cold iron ring 2, the fitting ring 4 is installed on the inner side wall of the forming surface type cold iron body 1, the insertion slot 5 is formed on the right side surface of the fitting ring 4, the mounting ring 8 is installed on the surface of the forming surface type cold iron body 1, the first side block 9 is installed on the front surface of the mounting ring 8, the first contact block 10 is installed on the upper and lower surfaces of the first side block 9, the second side block 11 is installed on the back surface of the mounting ring 8, the second contact block 12 is installed on the upper and lower surfaces of the second side block 11, the mounting rod 13 is installed on the left side of the forming surface type cold iron body 1, the auxiliary ring 14 is installed on the outer surface of the mounting rod 13, the forming surface type cold iron body 1 and the inner cold iron ring 2 are matched with each other, the stabilizing ring 15 is installed on the other side of the surface of the forming surface type cold iron body 1, when the forming surface type cold iron body 1 and the inner cold iron ring 2 are integrally installed, the surface of the forming surface type cold iron body 1 can also be cooled by the mounting ring 8, the first side block 9 and the first contact block 10 can be in contact with the external air, the second contact block 12 and the second side block 11 can also be in contact with the external air, the overall area is increased, so that the casting shell inside shrinkage porosity can be avoided when the boss is cooled as a whole, the overall cooling effect is better, and the stabilizing ring 15 can be attached to the volute, the boss is connected more stably as a whole, and the forming surface type cold iron body 1 can be easily installed and dismounted through the mounting rod 13 and the auxiliary ring 14.

[0024] The insertion column 6 is installed on the left side surface of the fastening ring 3, the insertion column 6 and the insertion slot 5 are matched with each other, the friction block 7 is installed on one side of the surface of the fitting ring 4, the friction block 7 is provided in two groups, firstly, the inner cold iron ring 2 is integrally installed inside the forming surface type cold iron body 1, and the left side surface of the fastening ring 3 is attached to the right side surface of the fitting ring 4, so that the overall fitting stability effect is better, and the insertion column 6 is inserted and installed inside the insertion slot 5, then the friction block 7 can ensure the friction stability effect between the fitting ring 4 and the fastening ring 3, and ensure the stability of the inner cold iron ring 2 when being installed inside the forming surface type cold iron body 1, then the inner cold iron ring 2 is installed on the outer surface of the boss to cool the boss, when the inner cold iron ring 2 inside the forming surface type cold iron body 1 needs to be replaced subsequently, the forming surface type cold iron body 1 can be pulled out from the inside of the inner cold iron ring 2, and the operation is more convenient.

[0025] Working principle: in use, first, the inner chill ring 2 is integrally installed in the inner part of the forming surface type chill body 1, and the left surface of the fastening ring 3 is attached to the right surface of the attaching ring 4, so that the overall attachment stability effect is good, and the inserting column 6 is inserted and installed in the inner part of the inserting groove 5, then the friction block 7 can ensure the friction stability effect between the attaching ring 4 and the fastening ring 3, and ensure the stability of the inner chill ring 2 when it is installed in the inner part of the forming surface type chill body 1, then the inner chill ring 2 is installed on the outer surface of the boss to cool the boss, when the inner chill ring 2 in the inner part of the forming surface type chill body 1 needs to be replaced, the forming surface type chill body 1 can be pulled out from the inner part of the inner chill ring 2, when the forming surface type chill body 1 and the inner chill ring 2 are integrally installed, the surface of the forming surface type chill body 1 can be cooled by the installing ring 8, and the first side block 9 and the first contact block 10 can contact with the outside air, and the second contact block 12 and the second side block 11 can also contact with the outside air, the overall area is increased, so that the inner part of the casting shell can be cooled without shrinkage porosity, the overall cooling effect is good, and the stability ring 15 can be attached to the volute, the overall connection with the boss is stable, and the installing rod 13 and the auxiliary ring 14 can easily install and disassemble the forming surface type chill body 1, the above is all the working principle of the utility model.

[0026] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form; any ordinary technical personnel in the industry can implement the utility model according to the above description and the drawings; however, any equivalent changes, modifications and evolution of the above disclosed technical content without departing from the technical scheme of the utility model are equivalent embodiments of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the utility model are still within the protection scope of the technical scheme of the utility model.

Claims

1. A shaped surface chill for preventing shrinkage cavities and porosity inside a casting shell, comprising a shaped surface chill body (1), wherein an inner chill ring (2) is installed inside the shaped surface chill body (1), characterized in that: A fastening ring (3) is installed on the left side of the inner cooling iron ring (2), and a fitting ring (4) is installed on the inner side wall of the shaped surface cooling iron body (1). A slot (5) is opened on the right side surface of the fitting ring (4). Insert (6), the insert (6) is installed on the left side surface of the fastening ring (3), the insert (6) and the slot (5) are adapted to each other, and a friction block (7) is installed on one side of the surface of the fitting ring (4), and two sets of friction blocks (7) are provided.

2. The forming surface chill for preventing shrinkage cavities and porosity inside the casting shell according to claim 1, characterized in that: The surface of the molded surface chill body (1) is fitted with an installation ring (8), and the front surface of the installation ring (8) is fitted with a first side block (9).

3. A shaped surface chill for preventing shrinkage cavities and porosity inside a casting shell according to claim 2, characterized in that: The first side block (9) is equipped with a first contact block (10) on both the upper and lower surfaces, and the second side block (11) is equipped with a second contact block (12) on both the upper and lower surfaces of the second side block (11).

4. A forming surface chill for preventing shrinkage cavities and porosity inside a casting shell according to claim 1, characterized in that: An installation rod (13) is installed on the left side of the shaped surface chill body (1), and an auxiliary ring (14) is installed on the outer surface of the installation rod (13).

5. A shaped surface chill for preventing shrinkage cavities and porosity inside a casting shell according to claim 1, characterized in that: The shaped surface chill body (1) and the inner chill ring (2) are mutually compatible.

6. A shaped surface chill for preventing shrinkage cavities and porosity inside a casting shell according to claim 1, characterized in that: A stabilizing ring (15) is installed on the other side of the surface of the shaped surface chill body (1).

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