CN215315597U

CN215315597U - Punch lubricating device

Info

Publication number: CN215315597U
Application number: CN202120921083.3U
Authority: CN
Inventors: 黄志团; 程文浩
Original assignee: Guangzhou Dezhi Metal Products Co ltd
Current assignee: Guangzhou Dezhi Metal Products Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-28
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to a punch lubricating device. The punch lubricating device comprises an injection chamber and a feed opening, wherein the injection chamber is provided with two ends, one end of the injection chamber is a punch inlet end, the other end of the injection chamber is a metal discharge hole, an inner cavity of the injection chamber is formed by the inner wall of the injection chamber, the feed opening is arranged at the top of the injection chamber close to the punch inlet end, the feed opening is communicated with the inner cavity of the injection chamber, a lubricating oil hole channel is further arranged at the top of the injection chamber between the punch inlet end and the feed opening, a lubricating oil groove is formed in the inner cavity of the injection chamber, and the lubricating oil groove is communicated with the inner cavity of the injection chamber and the lubricating oil hole channel. The utility model leads the whole punch to be wrapped with the oil film, prolongs the service life of the punch, thereby avoiding the use of redundant parts while finishing metal injection by the punch lubricating device, and greatly saving production materials and cost.

Description

Punch lubricating device

Technical Field

The utility model relates to the technical field of die casting equipment, in particular to a punch lubricating device.

Background

At present, the punch is lubricated mainly by placing a lubricating oil pipe at the edge of the end of the injection chamber, which is in contact with the punch, and when the punch is located at the end of the injection chamber (the initial point of injection), the lubricating oil flows to the punch from the edge of the end of the injection chamber, which is in contact with the punch, through the lubricating oil pipe, so that the lubricating oil can be firmly attached to the punch when the punch is pushed to the front end of the injection chamber, an oil film is formed on the punch, and friction generated when the punch is in contact with the inner wall of the injection chamber when the punch is pushed at a high speed is reduced. However, when the punch enters the inner cavity of the injection chamber from the tail end of the injection chamber, the punch is 20-30mm long and is arranged in the inner cavity of the injection chamber, so that lubricating oil flows from the tail end of the injection chamber and is firstly attached to the tail end of the punch, and the oil film cannot be quickly formed at the front end of the punch, so that the front end of the punch is always roughened when the punch is pushed to advance at a high speed, and the service life of the punch is greatly shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems and provides a punch lubricating device which is characterized in that a lubricating structure is adopted, namely a lubricating oil pore channel is arranged at the front end of a metal blanking opening, and a lubricating oil groove communicated with the pore channel is arranged in an injection chamber, so that lubricating oil can be better attached to the front end of a punch when the punch is pushed, the friction influence generated when the punch is pushed at a high speed in the injection chamber is reduced, the service life of the punch is better prolonged, the front end of the punch is prevented from being protected by using an additional part, and the production material and the cost are greatly saved.

The utility model adopts the following technical scheme:

the utility model provides a drift lubricating arrangement, includes and presses the chamber and metal feed opening, press the chamber to be equipped with both ends, one end is the drift inlet end, and the other end is the metal discharge gate, just press the chamber to be cylindrical barrel structure, its inner wall forms and presses the chamber inner chamber, presses the chamber inner chamber to be with pressing the cylindrical structure of penetrating the same axis of chamber, the metal feed opening sets up and is being close to press the chamber top of penetrating of drift inlet end, metal feed opening intercommunication press the chamber inner chamber still be equipped with the lubricating oil pore at the press the chamber top between the drift inlet end with the metal feed opening press the chamber inner chamber, seted up the lubricating oil groove on pressing the chamber inner chamber, and the lubricating oil groove intercommunication press the chamber inner chamber with the lubricating oil pore.

Preferably, the blanking angle of the metal blanking opening is 90 °.

Preferably, the lubricating oil duct is threaded.

Preferably, the diameter of the lubricating oil pore canal is phi 8 drilled hole size.

Preferably, the distance between the lubricating oil duct and the entry end of the punch is not more than 15 mm.

Preferably, a pump, a control valve and a meter are provided outside the lubricating oil passage.

Preferably, the lubricating oil groove (7) is an annular groove which is concavely arranged on the inner wall of the injection chamber inner cavity (5).

Compared with the prior art, the utility model has the beneficial effects that:

by adopting the scheme, the front end of the punch can be ensured to be attached by enough lubricating oil, and when the punch advances and pushes, the flowing lubricating oil can be splashed to the whole punch, so that the whole punch is wrapped with an oil film, the service life of the punch is prolonged, the punch lubricating device can be used for completing metal injection and avoiding redundant parts, and the production material and cost are greatly saved.

Drawings

FIG. 1 is a front view of a punch lubricating apparatus;

FIG. 2 is a top view of the punch lubricating apparatus;

FIG. 3 is a cross-sectional view A-A of the shot chamber of the punch lubricating apparatus; and

fig. 4 is a B-B sectional view of a lubricating structure in the punch lubricating device.

Reference numerals:

1-an injection chamber; 2-a metal feed opening; 3-a punch entry end; 4-metal discharge port; 5-pressing the inner cavity of the injection chamber; 6-lubricating oil pore channel; 7-lubricating oil groove.

Detailed Description

In order to facilitate understanding of the utility model, the utility model will be described in detail below with reference to the accompanying drawings. The drawings are only for purposes of illustrating the preferred embodiments of the utility model and are not to be construed as limiting the scope of the utility model. This application is capable of embodiments in many different forms and it is capable of modifications, improvements and adaptations of the utility model using its teachings that may be apparent to those skilled in the art.

As shown in fig. 1-4, a punch lubricating device comprises an injection chamber 1 and a metal feed opening 2, wherein the injection chamber 1 is provided with two ends, one end of the injection chamber is a punch inlet end 3, the other end of the injection chamber is a metal outlet end 4, the injection chamber 1 is of a cylindrical barrel structure, an inner wall of the injection chamber forms an injection chamber inner cavity 5, the injection chamber inner cavity 5 is of a cylindrical structure with the same central axis as the injection chamber 1, the metal feed opening 2 is arranged at the top of the injection chamber 1 close to the punch inlet end 3, the metal feed opening 2 is communicated with the injection chamber inner cavity 5, a lubricating oil duct 6 is further arranged at the top of the injection chamber 1 between the punch inlet end 3 and the metal feed opening 2, the length of the lubricating oil duct 6 from the punch inlet end 3 is not more than that of the whole punch, a lubricating oil groove 7 is arranged on the injection chamber inner cavity 5, and the lubricating oil groove 7 is communicated with the injection chamber inner cavity 5 and the lubricating oil duct 6, and the length of the lubricating oil groove 7 is not more than that of the punch.

In a preferred embodiment, the metal feed opening 2 has a feed angle of 90 ° as shown in fig. 3.

In a preferred embodiment, the lubricating oil duct 6 is threaded to prevent splashing caused by lubricating oil filling the lubricating oil duct when the punch is pushed forward at a high speed.

In a preferred embodiment, the diameter of the lubricating oil gallery 6 is phi 8 drill hole size.

In a preferred embodiment, the distance between the lubricating oil gallery 6 and the punch entry end 3 is 15 mm. Because the length of the punch is 20-30mm in the prior art, the lubricating oil pore canal is arranged at the position which is close to the front end of the punch just after the whole punch enters the inner cavity of the injection chamber, so that the effect that lubricating oil is attached to the front end of the punch after the lubricating punch enters the inner cavity of the injection chamber can be improved to the maximum extent.

In a preferred embodiment, a pump (not shown), a control valve (not shown) and a meter (not shown) are arranged outside the oil duct 6, which together are used to control the amount of oil added, avoiding that the amount of oil added exceeds the maximum oil reserve of the oil sump.

In a preferred embodiment, based on the above technical solution, the oil groove 7 is an annular groove concavely arranged on the inner wall of the injection chamber inner cavity 5, see fig. 4.

The working principle is as follows: in the working process of a die casting machine, a punch enters an inner cavity of a shot chamber from an inlet end of the punch, lubricating oil flows into a lubricating oil groove to the wall of the inner cavity of the shot chamber and the front end of the punch through an oil pipe along a lubricating oil duct, the punch advances through injection and pushes molten metal entering from a metal feed opening, the lubricating oil attached to the punch can adhere to the inner cavity of the shot chamber on an impact movement track along with the advance of the punch, so that the lubricating oil is attached to the inner wall of the shot chamber contacted with the punch, the friction between the punch and the punch is greatly reduced due to the lubricating oil, galling caused by the fact that the lubricating oil cannot be obtained at the front end of the punch when the punch advances at a high speed is reduced, the punch finishes the advancing injection and retreating and back to a primary injection site, the lubricating oil is added again to prepare for the advancing of the next injection, the front end of the punch is fully protected by the lubricating oil, and the phenomenon of galling of the punch after multiple times of die casting is avoided, the service life of the punch is prolonged.

Various technical features of the above embodiments may be combined arbitrarily, and for brevity, all possible combinations of the various technical features of the above embodiments are not described. However, as long as there is no contradiction between combinations of these technical features, they should be considered to be within the scope of the present specification.

Claims

1. The punch lubricating device comprises an injection chamber (1) and a metal discharging opening (2), wherein the injection chamber (1) is provided with two ends, one end of the injection chamber is a punch inlet end (3), the other end of the injection chamber is a metal discharging opening (4), an injection chamber inner cavity (5) is formed in the inner wall of the injection chamber (1), the metal discharging opening (2) is arranged at the top of the injection chamber (1) close to the punch inlet end (3), the metal discharging opening (2) is communicated with the injection chamber inner cavity (5), and the punch lubricating device is characterized in that a lubricating oil hole channel (6) is further arranged at the top of the injection chamber (1) between the punch inlet end (3) and the metal discharging opening (2), a lubricating oil groove (7) is formed in the injection chamber inner cavity (5), and the lubricating oil hole channel (6) is communicated with the injection chamber inner cavity (5).

2. Punch lubrication device according to claim 1, characterised in that the blanking angle of the metal blanking opening (2) is 90 °.

3. Punch lubrication device according to claim 1, characterised in that the lubricating oil duct (6) is threaded.

4. Punch lubrication device according to claim 3, characterised in that the diameter of the lubricating oil gallery (6) is Φ 8 drill size.

5. Punch lubrication device according to claim 1, characterised in that the distance between the lubricating oil duct (6) and the punch entry end (3) is not more than 15 mm.

6. Punch lubrication device according to claim 1, characterised in that a pump, a control valve and a meter are arranged outside the lubricating oil duct (6).

7. Punch lubrication device according to claim 1, characterised in that the oil groove (7) is an annular groove recessed on the inner wall of the shot chamber cavity (5).