CN210023290U

CN210023290U - Pinch roll device of continuous extrusion production straight line aluminium alloy system

Info

Publication number: CN210023290U
Application number: CN201822259654.2U
Authority: CN
Inventors: 关政; 杨中伦; 孙家麟
Original assignee: Zhenjiang Tiantong New Mstar Technology Ltd
Current assignee: Zhenjiang Tiantong New Mstar Technology Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2020-02-07
Anticipated expiration: 2028-12-30

Abstract

A pinch roll device of a system for producing linear aluminum profiles by continuous extrusion is characterized in that vertical pinch rolls are provided with two groups of vertically-arranged pinch rolls, namely, the axes of the two groups of pinch rolls are mutually vertical, and each group of pinch rolls comprises one to three pairs of parallel-arranged pinch rolls; the axes of each pair of clamping rollers are parallel to each other, the clamping rollers are made of rubber or U-shaped elastomer materials with the diameter of 5-25 cm and wrapped on steel shafts, the steel shafts are arranged on shaft seats, one of the clamping rollers is fixed, the shaft seat of the other clamping roller is arranged on a track and can be driven by a pneumatic rod driven by an air cylinder or a hydraulic rod driven by an oil cylinder or an electric push rod to drive the shaft seats to translate, and the translation rollers have two positions for clamping and releasing with the fixed rollers.

Description

Pinch roll device of continuous extrusion production straight line aluminium alloy system

Technical Field

The utility model relates to a continuous extrusion direct production straight line aluminium alloy system, especially the supporting or unit equipment of continuous extrusion direct production aluminum pipe production line.

Background

The continuous extrusion method was proposed in 1971 by Green of Springfield laboratories of the England atomic energy management Bureau, and is called the Conform continuous extrusion method. In normal forward extrusion, a significant amount of friction is generated between the moving billet and the stationary container, which consumes a significant portion of the extrusion energy. The Conform continuous extrusion method, however, uses a grooved wheel and a fixed shoe fitted with it as the support for the plug and the die, and when using a bar as the blank, the force of the grooved wheel biting into the blank is generated by the interference of the blank with respect to the grooved wheel, and the blank moves forward with the rotation of the wheel under the clamping action of the friction until it hits the plug. In the area near the front of the plug, the blank is yielded to fill the wheel groove, so that the friction between the groove wall and the blank is increased, the pressure in the deformation area is further increased, and finally the pressure required for extruding the blank from the die hole is reached, and the extrusion process is continuously carried out.

The Conform continuous extrusion technique has many advantages:

1. the extrusion process can be carried out continuously, in theory, profiles of infinite length can be extruded.

2. The total investment is less, the occupied area is small, the working procedure is simple, and the utilization rate of raw materials is high.

3. The blank does not need to be heated, so that the energy consumption required in the production is lower.

4. Either rod-shaped or granular materials may be used.

5. Can extrude various metals, and is particularly suitable for extruding copper and aluminum alloy.

The Conform continuous extrusion method has many advantages, and is generally used for producing wire rods, thin-wall pipes, circular pipes or micro-pipe coated pipes, and the produced products are coiled products.

When the tubular product of continuous extrusion production straight line aluminum profile system produced into the finished product of little siphunculus or cladding tubular product, needed pinch roll device to carry out alignment and processing to tubular product, because current Conform continuous extrusion equipment is mostly imported equipment, adopts the alignment of hydraulic pressure complementary unit in the current continuous production equipment, the utility model discloses need more high and low priced pinch roll device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a continuous extrusion production straight line aluminium alloy system's pinch roll device, especially perpendicular pinch roll-set up two sets of pinch rolls of installing perpendicularly, play and support the weight and the alignment of exporting here goods from the extruder mould, have certain alignment function simultaneously and install the encoder and be used for the length of meter at the axle head of roller.

The technical scheme of the utility model is that, the pinch roll device of the continuous extrusion production straight line aluminum section bar system is provided with two groups of vertically installed pinch rolls, namely, the axes of the two groups of pinch rolls are mutually vertical, and each group of pinch rolls comprises one to three pairs of parallel installed pinch rolls; the axes of each pair of clamping rollers are parallel to each other, the clamping rollers are made of rubber or U-shaped elastomer materials with the diameter of 5-25 cm and wrapped on a steel shaft, the steel shaft is arranged on a shaft seat, one roller of each pair of clamping rollers is fixed, the shaft seat of the other roller is arranged on a track and can be driven by a pneumatic rod driven by an air cylinder or a hydraulic rod driven by an oil cylinder or an electric push rod to drive the shaft seat to translate, and the translation roller has two positions for clamping and releasing with the fixed roller; the roll shaft of one roll in each pair of nip rolls is driven by a motor.

Has the advantages that: the utility model provides a pinch roll device of continuous extrusion production straight line aluminium alloy system has the pinch roll of two sets of perpendicular installations, plays to support from the weight of extruder mould export here goods, has certain alignment function simultaneously, and the alignment can be followed to the two-dimensional degree to perpendicular installation, has certain guard action to finished product tubular product, is used for the meter length at the axle head installation encoder of roller (according to pivoted circle data).

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view perpendicular to fig. 1 of the present invention.

Detailed Description

As shown in the figure, the warp the utility model discloses perpendicular pinch roll: two groups of pinch rolls which are vertically arranged are arranged, namely the axes of the two groups of pinch rolls are mutually vertical, and each group of pinch rolls comprises three pairs of parallel arranged pinch rolls; the axes of each pair of clamping rollers are parallel, the rubber 1 with the diameter of 10 cm is wrapped on a steel shaft 2, the steel shaft is arranged on a shaft seat 6, one roller in each pair of clamping rollers is fixed, the shaft seat of the other roller is arranged on a track 3 and can be driven by a pneumatic rod 4 to translate, the translation roller has two positions of clamping and unclamping with the fixed roller, the aluminum pipe is acted by the roller during clamping, the powerful straightening function is realized, and the roller shaft of one roller in each pair of clamping rollers is driven by a motor 5. In order to facilitate the passing of products through the rollers and adapt to products with different diameters, the pinch roller is provided with a group of movable rollers driven by an air cylinder, and meanwhile, an encoder for length counting is installed at the lower part of the roller, and the length can be counted according to rotating circle data, for example, a Hall device is adopted for counting. The pressure of the cylinder needs to be properly provided for the pneumatic rod, so that the product can be pressed to drive the length metering roller to rotate, and the product cannot be pressed to deform. The length counting roller can be a roller which can rotate actively, a roller shaft is driven by a motor to rotate, so that the aluminum pipe is convenient to output, and the actual aluminum pipe is pulled out by the traction equipment of the Conform continuous extrusion equipment.

The water cooling device for the rectangular-section aluminum pipe product extruded by the extruder adopts immersion cooling, and cooling water adopts circulating water supply. The product just extruded is high in temperature and easy to shake and deform when being subjected to a rear tractor and sawing, the strength of the product is improved after the product is cooled by water, and air blowing cooling is performed, namely the rectangular section aluminum pipe product is cooled by air nozzles arranged up and down, so that the cooling effect is achieved, water on the surface of the product is dried, and the water is not led out of a cooling water tank. The two groups of pinch rollers with mutually vertical installation axes play a supporting role and simultaneously play a role in isolating the vibration of rear equipment at the position, the vibration is not transmitted to the front part any more to influence a product which just comes out of a die and has a soft opening, and the geometric dimension of the product is ensured to meet the requirement. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pinch roll device of a system for producing linear aluminum profiles by continuous extrusion is characterized in that two groups of pinch rolls which are vertically arranged are arranged, namely the axes of the two groups of pinch rolls are mutually vertical, and each group of pinch rolls comprises one to three pairs of parallel clamping rolls; the axes of each pair of pinch rolls are parallel to each other, the pinch rolls are made of rubber or U-shaped elastomer materials with the diameter of 5-25 cm and wrapped on steel shafts, the steel shafts are arranged on shaft seats, one of the pinch rolls is fixed, the shaft seat of the other pinch roll is arranged on a track and can be driven by a pneumatic rod driven by an air cylinder or a hydraulic rod driven by an oil cylinder or an electric push rod to translate, and the translatable pinch rolls have two positions for clamping and releasing with the fixed pinch rolls.

2. The pinch roll unit of a system for continuous extrusion production of linear aluminum sections as claimed in claim 1, wherein the axis of one roll of each pair of pinch rolls is driven by a motor.