CN213497510U

CN213497510U - Cooling structure for roll extrusion processing

Info

Publication number: CN213497510U
Application number: CN202021922210.3U
Authority: CN
Inventors: 苏可人
Original assignee: Hunan Bangren Precision Manufacturing Co ltd
Current assignee: Hunan Bangren Precision Manufacturing Co ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-06-22
Anticipated expiration: 2030-09-07

Abstract

The utility model provides a cooling structure of roll extrusion processing, includes rolls extrusion head and rolls extrusion seat, rolls extrusion head setting in the top of rolling extrusion seat, rolls extrusion head and includes casing, hydro-cylinder and last smart roller, and the casing lower extreme is provided with the opening, goes up smart roller setting and is in opening part, hydro-cylinder setting are in the casing, and the hydro-cylinder setting is in the top of last smart roller. The periphery of the oil cylinder is provided with an annular hole, the annular hole is communicated with an opening at the lower end of the shell, the shell is provided with a mounting hole penetrating through the shell, and the mounting hole is communicated with the annular hole, so that the mounting hole, the annular hole and the opening are connected into a cooling channel inside the roll extrusion head. After the cooling liquid is injected from the mounting hole, the cooling liquid can flow through the oil cylinder, the upper fine rolling roller and flow out from an opening at the lower end of the rolling extrusion head, then flows into a groove between the two wallboards of the rolling extrusion seat through a piston rod of a processed product, and cools the two lower fine rolling rollers, the two needle roller supporting assemblies and other components, thereby prolonging the service life of the rolling extrusion head and the rolling extrusion seat.

Description

Cooling structure for roll extrusion processing

Technical Field

The utility model relates to a cooling structure, concretely relates to cooling structure that piston rod cold roll crowded lathe was used.

Background

The cold rolling and extruding process is one surface cold hard finishing process, which includes rolling and extruding high hardness and smooth roller and the surface of workpiece to make the surface material of the workpiece produce plastic flow and form new surface roughness. The metallographic structure of the surface layer of the workpiece processed by cold rolling extrusion is refined and residual compressive stress is generated, so that the surface hardness, the bearing capacity, the wear resistance, the fatigue strength and the corrosion resistance of the workpiece are improved, and a working mirror surface with excellent surface performance can be obtained.

However, in the process of performing cold roll extrusion processing on the piston rod through the upper fine rolling roller and the lower fine rolling roller, the heating values of all parts in the roll extrusion head and the roll extrusion seat are large, the abrasion loss of all parts in the roll extrusion head and the roll extrusion seat can be increased in the long-time processing process, and the service lives of the roll extrusion head and the roll extrusion seat are shortened.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: how to cool each part in the roll extrusion head and the roll extrusion seat so as to reduce the wear loss of each part in the roll extrusion head and the roll extrusion seat and prolong the service life of the roll extrusion head and the roll extrusion seat.

The needle is with above-mentioned problem, the utility model provides a technical scheme is: the utility model provides a cooling structure of roll extrusion processing, includes rolls extrusion head and rolls extrusion seat, rolls extrusion head setting in the top of rolling extrusion seat, rolls extrusion head and includes casing, hydro-cylinder and last smart roller, and the casing lower extreme is provided with the opening, goes up smart roller setting and is in opening part, hydro-cylinder setting are in the casing, and the hydro-cylinder setting is in the top of last smart roller. The periphery of the oil cylinder is provided with an annular hole, the annular hole is communicated with an opening at the lower end of the shell, the shell is provided with a mounting hole penetrating through the shell, and the mounting hole is communicated with the annular hole, so that the mounting hole, the annular hole and the opening are connected into a cooling channel inside the roll extrusion head.

Preferably, the cooling structure further comprises a liquid injection joint, the liquid injection joint comprises an outer interface, a connector and an inner interface, the outer interface and the inner interface are respectively integrally formed on two sides of the connector, and a joint through hole which sequentially penetrates through the outer interface, the connector and the inner interface is formed in the liquid injection joint.

Preferably, the inner port of the liquid injection joint is arranged in the mounting hole of the shell in an interference fit mode, and the joint through hole is communicated with the annular hole.

Preferably, the outer interface and the connector are both in a circular tube shape, the outer diameter of the connector is larger than that of the outer interface, and when the liquid injection connector is installed in the installation hole of the shell, the connector is propped against the outer side of the shell.

Preferably, the outer surface of the outer joint is provided with an annular thread.

Preferably, the rolling and extruding seat comprises wall plates, roller pin supporting assemblies and lower fine rolling rollers, a groove is formed between the two wall plates, a group of lower fine rolling rollers are arranged in the groove, the roller pin supporting assemblies are respectively arranged on two sides of each lower fine rolling roller, and a gap is formed between each roller pin supporting assembly and each lower fine rolling roller.

The utility model has the beneficial technical effects that: the annular hole and the mounting hole are formed in the rolling extrusion head, so that the mounting hole, the annular hole and the opening in the rolling extrusion head are connected into a cooling channel inside the rolling extrusion head. After the cooling liquid is injected from the mounting hole, the cooling liquid can flow through the oil cylinder, the upper fine rolling roller and flow out from an opening at the lower end of the rolling extrusion head, then flows into a groove between the two wallboards of the rolling extrusion seat through a piston rod of a processed product, and cools the two lower fine rolling rollers, the two needle roller supporting assemblies and other components, thereby prolonging the service life of the rolling extrusion head and the rolling extrusion seat.

Drawings

FIG. 1 is a schematic overall structure diagram according to a first embodiment;

FIG. 2 is a schematic cross-sectional view of the roll extrusion head;

FIG. 3 is a schematic perspective view of a roll extrusion base;

in the figure: the device comprises a rolling extrusion head 1, a shell 11, a liquid injection joint 12, an external interface 121, a connector 122, an internal interface 123, a joint through hole 124, an upper fine rolling roller 13, an oil cylinder 14, an annular hole 15, a piston rod 2, a rolling extrusion seat 3, a wallboard 31, a needle roller support assembly 32 and a lower fine rolling roller 33.

Detailed Description

The invention is further described below with reference to the following examples and figures:

example one

As shown in fig. 1, 2 and 3, the roll extrusion head 1 includes a housing 11, an oil cylinder 14 and an upper finish rolling roller 13, the oil cylinder 14 is disposed in the housing 11, and the oil cylinder 14 is disposed above the upper finish rolling roller 13. The lower end of the shell 11 is provided with an opening, the upper fine rolling roller 13 is arranged at the opening, and the size of the upper fine rolling roller 13 is smaller than that of the lower end of the shell 11, so that a gap is reserved between the upper fine rolling roller 13 and the shell 11. The rolling and extruding seat 3 comprises wall plates 31, a needle roller supporting assembly 32 and lower fine rolling rollers 33, a groove is formed between the two wall plates 31, a group of lower fine rolling rollers 33 are arranged in the groove, and the group of lower fine rolling rollers 33 are two lower fine rolling rollers 33 arranged in the groove side by side. Two sides of the lower fine rolling roller 33 are respectively provided with a needle roller supporting assembly 32, and a gap exists between the needle roller supporting assembly 32 and the lower fine rolling roller 33.

In order to cool the individual components of the roller press head 1 and the roller press shoe 3, the present exemplary embodiment provides a cooling channel in the roller press head 1, which channel runs through the housing 11. The cooling passage includes a mounting hole, which is a through hole penetrating the housing 11, an annular hole 15, and an opening at the lower end of the housing 11. The annular hole 15 is a sealed hole surrounding the periphery of the oil cylinder 14, and the annular hole 15 is respectively communicated with the mounting hole and the opening at the lower end of the shell 11.

In order to facilitate the connection of the coolant line to the mounting hole of the roll extrusion head 1, a filling nipple 12 is provided in the mounting hole of the housing 11. The liquid injection joint 12 comprises an outer interface 121, a connector 122 and an inner interface 123, the outer interface 121 and the inner interface 123 are respectively and integrally formed on two sides of the connector 122, and a joint through hole 124 sequentially penetrating through the outer interface 121, the connector 122 and the inner interface 123 is formed in the liquid injection joint 12. The inner port 123 of the liquid injection joint 12 is arranged in the mounting hole of the shell 11 in an interference fit mode, and the joint through hole 124 is communicated with the annular hole 15. The external interface 121 and the connector 122 are both in a circular tube shape, the outer diameter of the connector 122 is larger than that of the external interface 121, the liquid injection connector 12 is installed in the installation hole of the shell 11, and the connector 122 is abutted to the outer side of the shell 11. The outer surface of external connection 121 is provided with annular screw thread, overlaps the coolant pipe on the annular screw thread of external connection 121, can be with the coolant pipe with the cooling channel intercommunication of rolling extrusion head 1.

The coolant pipe is a flexible pipe made of elastic material, and is sleeved on the external connector 121 of the liquid injection connector 12, and is not shown in the figure. The cooling liquid in the cooling liquid pipe is injected into the liquid injection joint 12, and the cooling liquid flows through the mounting hole and the annular hole 15 from the liquid injection joint 12 in sequence and flows out from the opening at the lower end of the shell 11. The cooling liquid which is continuously cut off from the source of the cooling liquid pipe can cool the shell 11, the oil cylinder 14, the upper fine rolling roller 13 and other parts in the rolling and extruding head 1. The cooling liquid flows out from the opening at the lower end of the shell 11, then flows through the piston rod 2 and then flows into the groove between the two wall plates 31 of the rolling and extruding seat 3.

Gaps exist among the needle roller supporting assembly 32, the lower fine roller 33 and other parts in the rolling and extruding seat 3, and cooling liquid can pass through the gaps. The lower end of the rolling and extruding seat 3 originally has a plurality of through small holes, so that the cooling liquid flowing into the groove can flow out of the rolling and extruding seat 3 from the small holes. When the cooling liquid flows into the groove between the two wall plates 31, a part of the cooling liquid flows through each part in the rolling seat 3 and then flows out of the rolling seat 3 from the small hole. The coolant which does not flow out from the small hole can overflow from the groove between the two wall plates 31, the coolant can flow to the outside of the rolling seat 3 along the outer sides of the two wall plates 31, and the coolant which flows to the outside of the rolling seat 3 without cutting off the source can be discharged from a liquid discharge channel below the cold rolling machine tool.

It will be apparent that modifications and variations are possible without departing from the principles of the invention.

Claims

1. A cooling structure for roll extrusion processing comprises a roll extrusion head and a roll extrusion seat, wherein the roll extrusion head is arranged above the roll extrusion seat and comprises a shell, an oil cylinder and an upper fine rolling roller; the oil cylinder is characterized in that an annular hole is formed in the periphery of the oil cylinder and communicated with an opening in the lower end of the shell; the shell is provided with a mounting hole penetrating through the shell, and the mounting hole is communicated with the annular hole, so that the mounting hole, the annular hole and the opening are connected into a cooling channel inside the rolling extrusion head.

2. The cooling structure of claim 1, further comprising a liquid injection joint, wherein the liquid injection joint comprises an outer connector, a connector and an inner connector, the outer connector and the inner connector are integrally formed on two sides of the connector, and a joint through hole is formed in the liquid injection joint and sequentially penetrates through the outer connector, the connector and the inner connector.

3. A cooling structure by roll extrusion as claimed in claim 2, wherein the inner port of the liquid injection joint is fitted in the mounting hole of the housing in an interference fit manner, and the joint through hole communicates with the annular hole.

4. The cooling structure of claim 3, wherein the outer connector and the connector are both in a shape of a circular tube, and the outer diameter of the connector is larger than that of the outer connector, and when the liquid injection connector is mounted in the mounting hole of the housing, the connector abuts against the outside of the housing.

5. A cooling structure in a roll extrusion process according to any one of claims 2 to 4, wherein the outer surface of the external joint is provided with a ring thread.

6. The cooling structure for roll extrusion processing according to claim 1, wherein the roll extrusion seat comprises wall plates, a needle roller support assembly and a lower fine roller, a groove is arranged between the two wall plates, a group of lower fine rollers are arranged in the groove, two needle roller support assemblies are respectively arranged on two sides of the lower fine roller, and a gap exists between the needle roller support assemblies and the lower fine rollers.