Punch oil injection device for die casting machine

Abstract

The utility model discloses a punch oil injection device for a die casting machine, which comprises an injection pipe body and a punch, a water jacket is arranged at the tail of the injection pipe body, a water inlet and a water outlet are arranged on the side wall of the water jacket, a water inlet groove is arranged at the bottom of the water inlet, a water outlet groove is arranged at the bottom of the water outlet, and a connecting groove is arranged between the water inlet groove and the water outlet groove. A cooling water pipeline and a cooling water pipe connector are arranged on the outer wall of the head of the injection pipe body, a melting cup and an oil groove are arranged at the tail end of the head of the injection pipe body, and an oil groove connector is arranged on the side of the oil groove which is close to the punch. According to the punch oil injection device for the die-casting machine, a complete lubricating film can be rapidly and efficiently formed on the surface of the punch, reasonable matching with injection is guaranteed, so that the punch is smoothly injected, contact pressure and friction force between the punch and the surface of a die are reduced, contact between the punch and the surface of the die is more stable, and the service life of the punch is prolonged. The cost is saved while abrasion and corrosion are reduced, and the influence on the yield of die-casting products can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a die casting tool, more exactly, a punch oil injection device for a die casting machine. BACKGROUND

[0002] The main role of die casting punch oil is to reduce the friction between the punch and the mold, prevent wear and corrosion. During the die casting process, when the punch and the mold surface contact, because the contact area between them is very small, high contact pressure and high temperature will be generated, which will accelerate the wear and corrosion of the punch and the barrel surface. After applying die casting punch oil, a lubricating film can be formed to reduce the contact pressure and friction of the punch and the mold surface, making the contact between them more stable, reducing wear and corrosion, and using die casting punch oil can prevent the punch from sticking, plug and other phenomena.

[0003] The existing punch oil adding method is to deliver the punch oil to the melting cup through the oil pump, which is easy to contact with high-temperature aluminum liquid, resulting in loss. When the punch advances, the contact between the punch and the barrel surface generates pressure and friction, causing serious wear of the punch, reducing the injection speed, increasing the cost and reducing the production efficiency. SUMMARY

[0004] Therefore, it is necessary to provide a punch oil injection device for a die casting machine aiming at the above technical problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A punch oil injection device for a die casting machine, characterized in that the punch oil injection device for a die casting machine comprises an injection pipe body and a punch,

[0007] The tail of the injection pipe body is provided with a water jacket, the side wall of the water jacket is provided with a water inlet and a water outlet, the bottom of the water inlet is provided with a water inlet groove, the bottom of the water outlet is provided with a water outlet groove, a connecting groove is arranged between the water inlet groove and the water outlet groove, the outer wall of the head of the injection pipe body is provided with a cooling water pipe and a cooling water pipe interface, the end of the head of the injection pipe body is provided with a melting cup and an oil groove, the side of the oil groove is provided with an oil groove interface, and the oil groove is close to the punch.

[0008] As a preferred embodiment of the utility model, the oil groove interface is connected with an oil pump.

[0009] As a preferred embodiment of the utility model, the oil groove is annular.

[0010] As a preferred embodiment of the utility model, the injection pipe body is tubular.

[0011] As a preferred embodiment of the utility model, the water jacket is matched with the outer circle of the injection chamber, and the punch is matched with the inner cavity of the injection chamber.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the punch oil injection device for the die casting machine can quickly and efficiently form a complete lubricating film on the surface of the punch, ensure reasonable cooperation during injection, so that the punch injection is smoothly carried out, reduce the contact pressure and friction force of the punch and the mold surface, make the contact between them more stable, reduce wear and corrosion while saving cost, and also avoid the influence on the yield of the die casting product. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to make the person in the art better understand the scheme of the utility model, the following will be a brief introduction to the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 It is a structure schematic view of the punch oil injection device for the die casting machine of the utility model,

[0015] Figure 2 It is a structure schematic view of the punch oil injection device for the die casting machine of the utility model, Figure 1

[0016] Figure 3 It is a sectional structure schematic view of the punch oil injection device in Figure 1

[0017] Marking in the drawing is as follows: 1, water jacket;10, melting cup;11, oil groove interface;12, connecting groove;2, water inlet groove;3, water inlet;4, water outlet groove;5, water outlet;6, cooling water pipeline;7, cooling water pipe interface;8, oil groove;9, punch;S, injection pipe body. DETAILED DESCRIPTION

[0018] In order to make the person in the art better understand the scheme of the utility model, the following will be a brief introduction to the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] As Figures 1 to 3 shown, the punch oil injection device for the die casting machine comprises an injection pipe body S and a punch 9,

[0020] ​​The tail of the injection pipe body S is provided with a water jacket 1, the side wall of the water jacket 1 is provided with a water inlet 3 and a water outlet 5, the bottom of the water inlet 3 is provided with a water inlet groove 2, the bottom of the water outlet 5 is provided with a water outlet groove 4, a connecting groove 12 is arranged between the water inlet groove 2 and the water outlet groove 4, the outer wall of the head of the injection pipe body S is provided with a cooling water pipe 6 and a cooling water pipe interface 7, the tail end of the head of the injection pipe body S is provided with a melting cup 10 and an oil groove 8, the side of the oil groove 8 is provided with an oil groove interface 11, and the oil groove interface 11 is connected with an oil injection pump.

[0021] It should be noted that the oil groove 8 is close to the punch 9.

[0022] In addition, the injection pipe body S is tubular.

[0023] It should be noted that the water jacket 1 cooperates with the outer circle of the injection chamber, the punch 9 cooperates with the inner cavity of the injection chamber, the melting cup 10 is arranged at the tail end of the injection chamber, and the oil groove 8 is arranged at the starting point of the punch and cooperates with the oil groove interface 11.

[0024] The use method of the punch oil injection device for the die casting machine will be introduced below, which comprises the following steps:

[0025] S1, when the punch 9 returns to the starting position, the oil injection pump is opened after the next cycle of mold closing, and oil is injected into the oil groove 8 through the oil groove interface 11;

[0026] S2, after the punch oil is injected, the oil groove 8 covers the punch for a circle;

[0027] S3, the punch oil is vaporized under the action of high temperature, and a circle of lubricating film is formed around the punch 9.

[0028] S4, the punch 9 starts the injection cycle.

[0029] The punch oil injection device for the die casting machine can quickly and efficiently form a complete lubricating film on the surface of the punch, ensure reasonable cooperation during injection, facilitate smooth injection of the punch, reduce the contact pressure and friction force of the punch and the mold surface, make the contact between them more stable, reduce wear and corrosion while saving cost, and also avoid affecting the yield of the die casting product.

[0030] Obviously, the above-described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application.

Claims

1. A punch oil injection device for a die casting machine, characterized by, The punch oil injection device for the die casting machine comprises an injection pipe body (S) and a punch (9), The tail of the injection pipe body (S) is provided with a water jacket (1), the side wall of the water jacket (1) is provided with a water inlet (3) and a water outlet (5), the bottom of the water inlet (3) is provided with a water inlet groove (2), the bottom of the water outlet (5) is provided with a water outlet groove (4), a connecting groove (12) is arranged between the water inlet groove (2) and the water outlet groove (4), the outer wall of the head of the injection pipe body (S) is provided with a cooling water pipe (6) and a cooling water pipe interface (7), the tail end of the head of the injection pipe body (S) is provided with a melting cup (10) and an oil groove (8), the side of the oil groove (8) is provided with an oil groove interface (11), and the oil groove (8) is close to the punch (9).

2. The punch oil injection device for a die casting machine according to claim 1, characterized by, The oil groove interface (11) is connected with an oil injection pump.

3. The punch oil injection device for a die casting machine according to claim 1, characterized by, The oil groove (8) is annular.

4. The punch oil injection device for a die casting machine according to claim 1, characterized by, The injection pipe body (S) is tubular.

5. The punch oil injection device for a die casting machine according to claim 1, characterized by, The water jacket (1) is matched with the outer circle of a shot chamber, and the punch (9) is matched with the inner cavity of the shot chamber.

Images