An internal injection device for a die casting machine punch

Abstract

The utility model discloses a kind of inner spray injection devices for die casting machine punch, comprising: injection rod;Connecting head is screwed with one end of the compression rod;Punch is screwed with one end of the connecting head, and the inner cavity of the injection rod, connecting head and punch is sequentially communicated;Inner spray oil injection component is arranged between the injection rod and the connecting head.The inner spray injection device for die casting machine punch, by being provided with inner spray oil injection component, the injection rod can be oiled when carrying out injection work, so that lubricating oil sequentially passes through oil inlet hole, oil delivery hole and oil outlet hole, and is obliquely sprayed outward through oil injection hole, to lubricate punch, reduce the wear degree of punch and material cylinder inner wall when working, effectively prolong the service life of accessory, save cost, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of die casting machine technology, specifically to an internal spraying device for a die casting machine punch. Background Technology

[0002] Die casting machines are machines used for pressure casting, including both hot and cold chamber types, and are further divided into vertical and horizontal types. Under pressure, the die casting machine injects molten metal into a mold to cool and solidify. After the mold is opened, a solid metal casting can be obtained. It was initially used for die casting lead type. In the injection system of the die casting machine, the material cylinder (material barrel), punch (plunger head), connector, and injection rod are the core components. They work together to complete the process of metal molten metal intake, pressurization, and injection, which directly affects the quality of die casting products and production efficiency.

[0003] The punch is the direct executor of the injection force. Driven by the injection force, the punch moves forward at high speed. The punch is the most vulnerable part in the injection process, with a short service life and a high replacement frequency. Each replacement requires readjustment, which seriously reduces production efficiency and increases processing costs. Utility Model Content

[0004] The purpose of this invention is to provide an internal injection device for die-casting machine punches, in order to solve the problems of short service life, frequent replacement, and serious reduction in production efficiency and increase in processing costs of existing punches.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an internal injection device for a die-casting machine punch, comprising: an injection rod, a connector, a punch, and an internal oil injection assembly; the connector is screwed to one end of the injection rod; the punch is screwed to one end of the connector, and the inner cavities of the injection rod, the connector, and the punch are sequentially connected; the internal oil injection assembly is disposed between the injection rod and the connector.

[0006] Preferably, a first O-groove is provided on both the left and right sides of the connector, and a first O-ring is fitted into the inner cavity of the first O-groove. The first O-ring is pressed into the first O-groove by the inner wall of the injection rod and the punch, respectively.

[0007] Preferably, one end of the injection rod is provided with a second O-groove, the inner cavity of the second O-groove is inserted with a second O-ring, and one side of the connector presses the second O-ring tightly inside the second O-ring.

[0008] Preferably, the internal oil injection assembly includes: an oil inlet hole, which is provided on one side of the top of the outer wall of the injection rod; an oil delivery hole, which is provided on one side of the injection rod in a left-right direction and communicates with the inner cavity of the oil inlet hole; an oil storage tank, which is provided on one side of the connector and communicates with the inner cavity of the oil storage tank; an oil outlet hole, which is provided circumferentially on one side of the inner cavity of the oil storage tank; and an oil spray hole, which is provided circumferentially on the outer wall of the connector and communicates with the inner cavity of the oil outlet hole.

[0009] Preferably, one side of the inner cavity of the oil outlet is inclined outward from right to left.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the internal spraying injection device for the die-casting machine punch, by setting an internal spraying oil injection component, can inject oil into the injection rod during the injection operation, so that the lubricating oil passes through the oil inlet hole, oil delivery hole and oil outlet hole in sequence, and is sprayed out obliquely through the oil spray hole to lubricate the punch, reduce the wear between the punch and the inner wall of the material cylinder during operation, effectively extend the service life of the parts, save costs and improve work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0013] Figure 3 This is a front sectional view of the present invention;

[0014] Figure 4 This utility model Figure 1 Enlarged view of point A in the image.

[0015] In the diagram: 1. Injection rod; 2. Connector; 3. Punch; 4. Internal oil injection assembly; 41. Oil inlet; 42. Oil delivery hole; 43. Oil reservoir; 44. Oil outlet; 45. Injection hole; 5. First O-ring groove; 6. First O-ring; 7. Second O-ring groove; 8. Second O-ring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: an internal spraying device for a die-casting machine punch, comprising: a spraying rod 1, a connector 2, a punch 3, and an internal spraying oil injection assembly 4;

[0018] Connector 2 is screwed to one end of injection rod 1, and punch 3 is screwed to one end of connector 2. The inner cavities of injection rod 1, connector 2 and punch 3 are connected in sequence. The inner oil injection assembly 4 is located between injection rod 1 and connector 2.

[0019] As a preferred option, the connector 2 is further provided with a first O-groove 5 on both the left and right sides. A first O-ring 6 is fitted into the inner cavity of the first O-groove 5. The first O-ring 6 is pressed into the first O-groove 5 by the inner walls of the injection rod 1 and the punch 3 respectively. By providing the first O-ring 6, the connection between the connector 2 and the punch 3 and the injection rod 1 can be sealed.

[0020] As a preferred option, a second O-ring 7 is provided at one end of the injection rod 1. A second O-ring 8 is inserted into the inner cavity of the second O-ring 7, and one side of the connector 2 presses the second O-ring 8 into the second O-ring 8. By providing the second O-ring 8, the end faces of the connector 2 and the injection rod 1 can be sealed.

[0021] As a preferred embodiment, the internal oil injection assembly 4 further includes: an oil inlet 41, an oil delivery hole 42, an oil reservoir 43, an oil outlet 44, and an oil injection hole 45.

[0022] In order to lubricate the punch 3, an oil inlet 41 is provided on one side of the top of the outer wall of the injection rod 1, and an oil delivery hole 42 is provided on one side of the injection rod 1 in the left-right direction. The oil delivery hole 42 communicates with the inner cavity of the oil inlet 41. An oil storage tank 43 is provided on one side of the connector 2, and the oil delivery hole 42 communicates with the inner cavity of the oil storage tank 43. The lubricant injected by the injection rod 1 can be stored in the oil storage tank 43. Several oil outlet holes 44 are provided on one side of the inner cavity of the oil storage tank 43 in the circumferential direction. Several oil spray holes 45 are provided on the outer wall of the connector 2 in the circumferential direction, and the oil spray holes 45 communicate with the inner cavity of the oil outlet holes 44. By providing multiple oil outlet holes 44 and oil spray holes 45, the punch 3 can be lubricated more evenly.

[0023] As a preferred option, the inner cavity of the oil outlet 44 is further inclined from right to left outwards on one side, with an inclination angle of nearly 45 degrees. This helps the lubricating oil reach the punch 3 while preventing clogging caused by sludge, aluminum shavings, etc.

[0024] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0025] The punch 3, connector 2, and injection rod 1 are connected and installed inside the casting machine. During use, lubricating oil is injected into the oil inlet 41. The lubricating oil enters the oil storage tank 43 on one side of the connector 2 through the oil delivery hole 42, and then disperses into multiple oil outlet holes 44. Finally, it is sprayed out obliquely to the outside of the punch 3 through the oil spray hole 45 to lubricate the punch 3, reduce the wear between the punch 3 and the inner wall of the material cylinder during operation, effectively extend the service life of the parts, and save costs.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internal injection device for a die-casting machine punch, characterized in that, include: Injection rod (1); connector (2), screwed to one end of the injection rod (1); The punch (3) is screwed to one end of the connector (2), and the inner cavities of the injection rod (1), connector (2) and punch (3) are connected in sequence; the internal oil injection assembly (4) is disposed between the injection rod (1) and connector (2).

2. The internal injection device for a die-casting machine punch according to claim 1, characterized in that: The connector (2) has a first O-groove (5) on both the left and right sides. The inner cavity of the first O-groove (5) is fitted with a first O-ring (6). The first O-ring (6) is pressed into the first O-groove (5) by the inner wall of the injection rod (1) and the punch (3).

3. The internal injection device for a die-casting machine punch according to claim 2, characterized in that: One end of the injection rod (1) is provided with a second O-groove (7), and a second O-ring (8) is inserted into the inner cavity of the second O-groove (7). One side of the connector (2) presses the second O-ring (8) into the second O-ring (8).

4. The internal injection device for a die-casting machine punch according to claim 3, characterized in that: The internal oil injection assembly (4) includes: an oil inlet (41), which is provided on one side of the top of the outer wall of the injection rod (1); an oil delivery hole (42), which is provided on one side of the injection rod (1) in a left-right direction and is connected to the inner cavity of the oil inlet (41); an oil storage tank (43), which is provided on one side of the connector (2) and is connected to the inner cavity of the oil storage tank (43); an oil outlet (44), which is provided on one side of the inner cavity of the oil storage tank (43); and an oil spray hole (45), which is provided on the outer wall of the connector (2) in a circumferential direction and is connected to the inner cavity of the oil outlet (44).

5. The internal injection device for a die-casting machine punch according to claim 4, characterized in that: The inner cavity of the oil injection hole (45) is inclined outward from right to left on one side.

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