CN211101521U - Special-shaped core pulling structure of mold - Google Patents

Abstract

The utility model discloses a special-shaped core-pulling structure for a mold, which comprises an oil cylinder, a limit rod, a fixing ring, a limit block, a fixed seat, a pressing plate, an insert, a connecting rod, a forming core and a screw. A limit rod is installed on the outer wall, a fixing seat is sleeved and fixed on the inner wall of the top end of the oil cylinder, a fixing ring is sleeved and fixed on the outer wall of one side of the fixing seat, and a screw is threaded on the outer wall of one side of the fixing ring. , the outer wall of the bottom end of the fixing ring is welded and fixed with a limit block. The special-shaped core-pulling structure of the mold first changes the core-pulling structure into a separate structure, and the special-shaped parts are cancelled on the insert sleeve, and the original integral core is improved and designed as The fixed seat, connecting rod, special-shaped insert and forming core, and the use of threaded connection, so that the mechanism is easy to replace, and the connection is not easy to damage, although the forming core is easy to damage, but its cost is cheap, in die casting, it can be reduced production costs and improve production efficiency.

Description

A special-shaped core-pulling structure for a mold

technical field

The utility model relates to the technical field of mold auxiliary equipment, in particular to a mold special-shaped core-pulling structure.

Background technique

Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping, etc. In short, molds are tools used to make molded articles , This tool is composed of various parts, and different molds are composed of different parts; it mainly realizes the processing of the shape of the object through the change of the physical state of the molded material; it is known as the "mother of industry", and pressure casting is also One of them is a kind of precision casting method in which molten alloy is filled into the mold cavity under high pressure and high speed, and the molten alloy is rapidly cooled and solidified under high pressure, so as to realize the molding. The mold used is called a die-casting mold; in a pair of molds, the mechanism that separates the molding part of the die-casting from the die-casting part before the mold-opening action is called a core-pulling mechanism; the hydraulic core-pulling mechanism uses pressure oil as the Core-pulling power, a special hydraulic cylinder is set on the mold, and the reciprocating motion of the piston is used to achieve core-pulling and reset. However, the existing mold special-shaped core-pulling is easy to damage and the cost is high. When using die-casting, the special-shaped core-pulling will be used repeatedly. The special-shaped core-pulling is easy to damage, which will lead to frequent replacement of the core-pulling structure of the mold, and the high cost of this structure and frequent replacement will not only affect the production efficiency, but also increase the cost of die-casting, which will lead to the price of the product after production. With the increase, and the number of products can not meet the requirements, is not conducive to the economic benefits of the factory.

Utility model content

The purpose of the present invention is to provide a special-shaped core-pulling structure of a mold to solve the problems raised in the above-mentioned background technology.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: a special-shaped core-pulling structure for a mold, including an oil cylinder, a limit rod, a fixed ring, a limit block, a fixed seat, a pressure plate, an insert, a connecting rod, and a forming core and screws, a limit rod is installed on one side outer wall of the oil cylinder, a fixing seat is sleeved and fixed on the inner wall of the top end of the oil cylinder, and a fixing ring is sleeved and fixed on the outer wall of one side of the fixing seat. A screw is threaded on the outer wall of one side of the fixing ring, a limit block is welded and fixed on the outer wall of the bottom end of the fixing ring, and one end of the limit rod penetrates through the interior of the limit block, and a top outer wall of the fixing seat is threadedly connected with a limit block. A pressure plate, a connecting rod is threaded on one inner wall of the fixing seat, an insert is threaded on the outer wall of the connecting rod on one side of the pressure plate, and a forming core is threaded on one inner wall of the connecting rod.

Further, the shape of the insert is T-shaped.

Further, the number of the screws is eight.

Further, the top end of the oil cylinder is inserted into the interior of the fixing ring.

Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: in this utility model, the core pulling is first changed into a split structure, the special-shaped parts are not designed on the insert sleeve, and the original integral core is improved and designed to be fixed. Seat, connecting rod, special-shaped insert and forming core, and the use of threaded connection, so that the mechanism is easy to replace, and the connection is not easy to damage, although the forming core is easy to damage, but its cost is cheap, so in die casting, it can be reduced production cost and improve production efficiency.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the overall three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the overall exploded structure schematic diagram of the present utility model;

In the figure: 1. Oil cylinder; 2. Limiting rod; 3. Fixing ring; 4. Limiting block; 5. Fixing seat; 6. Pressure plate; 7. Insert; 8. Connecting rod; 9. Forming core; 10 ,screw.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Figures 1-2, the present utility model provides a technical solution: a special-shaped core-pulling structure for a mold, comprising an oil cylinder 1, a limit rod 2, a fixed ring 3, a limit block 4, a fixed seat 5, a pressure plate 6, an insert Sleeve 7, connecting rod 8, forming core 9 and screw 10, a limit rod 2 is installed on the outer wall of one side of the oil cylinder 1, a fixed seat 5 is sleeved and fixed on the inner wall of the top end of the oil cylinder 1, and the outer wall of one side of the fixed seat 5 is fixed. A fixing ring 3 is fixed in the socket, a screw 10 is threaded on one side of the outer wall of the fixing ring 3, a limit block 4 is welded and fixed on the outer wall of the bottom end of the fixing ring 3, and one end of the limit rod 2 penetrates through the limit block 4 Inside, a pressure plate 6 is threadedly connected to the top outer wall of the fixed seat 5, a connecting rod 8 is threadedly connected to the inner wall of one side of the fixed seat 5, and the connecting rod 8 is located on the outer wall of the pressure plate 6. The inner wall of one side of the rod 8 is threadedly connected with a forming core 9; the shape of the insert 7 is T-shaped, which is convenient for the installation of the connecting rod 8; the number of screws 10 is eight, which is convenient for connection; The inside of the fixed ring 3 is easy to install and connect; the special-shaped core-pulling structure of the mold is connected to the limit block 4 on the fixed ring 3 because the limit rod 2 is connected, so as to ensure that the fixed ring 3 will not move in the oil cylinder 1, and then start the oil cylinder 1, The hydraulic oil is pushed outward through the fixed seat 5, and drives the connecting rod 8 and the forming core 9 to move up and down. Since the structure adopts a separate installation, the fixed seat 5, the connecting rod 8, and the insert 7 are fixed, connected, and matched. The parts are not easy to be damaged, and the insert sleeve 7 is designed to be matched with a round surface, which has a low failure rate and is not easy to grind to death. 9 When damaged, it can be easily removed and replaced, which can reduce costs, improve production efficiency, and improve the economic benefits of the factory.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Furthermore, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes no explicit Other elements listed, or those inherent to such a process, method, article or apparatus are also included.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. A mold special-shaped core-pulling structure, comprising an oil cylinder (1), a limit rod (2), a fixed ring (3), a limit block (4), a fixed seat (5), a pressure plate (6), an insert ( 7), connecting rod (8), forming core (9) and screw (10), characterized in that: a limit rod (2) is installed on one side outer wall of the oil cylinder (1), and the oil cylinder (1) A fixing seat (5) is sleeved and fixed on the inner wall of the top of the fixing seat (5), a fixing ring (3) is sleeved and fixed on one side of the outer wall of the fixing seat (5), and one side of the outer wall of the fixing ring (3) is threadedly connected There is a screw (10), a limit block (4) is welded and fixed on the outer wall of the bottom end of the fixing ring (3), and one end of the limit rod (2) penetrates through the inside of the limit block (4), the fixed A pressure plate (6) is threadedly connected to the outer wall of the top end of the seat (5), and a connecting rod (8) is threadedly connected to the inner wall of one side of the fixing seat (5), and the connecting rod (8) is located one side of the pressure plate (6). An insert (7) is threadedly connected to the outer wall of the side, and a forming core (9) is threadedly connected to the inner wall of one side of the connecting rod (8). 2 . The special-shaped core-pulling structure for a mold according to claim 1 , wherein the insert sleeve ( 7 ) is T-shaped. 3 . 3 . The special-shaped core-pulling structure for a mold according to claim 1 , wherein the number of the screws ( 10 ) is eight. 4 . 4 . The special-shaped core-pulling structure of a mold according to claim 1 , wherein the top end of the oil cylinder ( 1 ) is inserted into the interior of the fixing ring ( 3 ). 5 .

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