CN2169640Y

CN2169640Y - Curved bar expander

Info

Publication number: CN2169640Y
Application number: CN 93231568
Authority: CN
Inventors: 李宏娟; 孙继刚; 于明鉴
Original assignee: Weifang No1 Textile Machinery Factory
Current assignee: Weifang No1 Textile Machinery Factory
Priority date: 1993-08-04
Filing date: 1993-08-04
Publication date: 1994-06-22
Anticipated expiration: 2003-08-04

Abstract

The utility model discloses a curved bar expander. The utility model is characterized in that an expanding sleeve which is supported by a bearing is sheathed on a core shaft, and can freely rotated around the core shaft. Accordingly, the utility model has the advantages of good using effect and long service life, and can be used in the industries of textiles, papermaking, printing and the manufacture of plastic thin films.

Description

Curved bar expander

The utility model belongs to textile finishing, the used device technique field of expanding, is applicable to the industries such as manufacturing of weaving, papermaking, printing, plastic sheeting.

Existing roller expander is suit one gum cover on the mandrel of a bending, be interference fit between mandrel and the gum cover, do not produce relative motion in the course of the work, be organized, be sliding friction between the article of expanding and the gum cover, thereby result of use is poor, and service life is short.

The purpose of this utility model is that a kind of result of use of design is good, the roller expander of long service life.

A kind of embodiment of the present utility model comprises mandrel, it is characterized in that being equipped with on the mandrel bearing and is set with the expanding cover, and this expanding cover comprises the helical form body, is fixed with gum cover on the body.

Another embodiment of the present utility model is to have a mandrel, it is characterized in that being equipped with on the mandrel some groups of bearings, inner sleeve all is installed on the mandrel between the two adjacent groups bearing, the outside of inner sleeve is set with the expanding cover, this expanding cover comprises and the corresponding outer sleeve of inner sleeve, some joint outer sleeves form the nodular structure, are set with gum cover on it.

Expanding cover of the present utility model can arbitrarily rotate around mandrel, in the use, be organized, be rolling friction between the article of expanding and the expanding cover, thereby result of use is good, and can prolong its service life, when being used for textile industry, can improve fabric arrangement, go to wrinkle, the quality of expanding, except that textile industry, also can be applicable to the industries such as manufacturing of papermaking, printing, plastic sheeting.

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the A-A cutaway view Amplified image of Fig. 1;

Fig. 3 is the structural representation of embodiment 2;

Fig. 4 is the B-B cutaway view Amplified image of Fig. 3.

Embodiment 1, present embodiment comprise mandrel (1), some groups of bearings (4) are installed on it, said bearing (4) is a rolling bearing, and bearing fixing circle (3) is fixed on the mandrel (1) by jackscrew (12), and bearing holder (housing, cover) (5) is installed on the bearing (4).Mandrel is set with the expanding cover on (1), and this expanding cover comprises helical form and the body (6) that links to each other with bearing holder (housing, cover) (5), is fixed with gum cover (9) on the body (6), and described gum cover (9) can select for use Nitrile Rubber to make.Be connected with an impervious barrier (8) between body (6) and the gum cover (9), can select for use canvas to make, its effect is the anti-pressure-bearing that blends.The two ends envelope of expanding cover has stifle (2), and it is inboard with sealing ring (7).The expanding cover is supported by bearing (4), because body (6) is a helical form, thereby can rotate around mandrel (1).

Embodiment 2, present embodiment comprise mandrel (1), by bearing fixing circle (3) some groups of bearings (4) are installed on it, described bearing (4) is a rolling bearing, bearing holder (housing, cover) (5) is installed on the bearing (4), on the mandrel (1) between the two adjacent groups bearing (4) inner sleeve (11) is installed all, inner sleeve is set with the expanding cover on (11), this expanding cover comprises outer sleeve (10) corresponding with inner sleeve (11) and that follow bearing holder (housing, cover) (5) to link to each other, some joint outer sleeves (10) form the nodular structure, are set with gum cover (9) on outer sleeve (10).The two ends envelope of expanding cover has stifle (2), and the inboard of stifle (2) is with sealing ring (7).Described expanding cover is supported by bearing (4), because outer sleeve (10) is designed to some joints, thereby the expanding cover can rotate around mandrel (1).

Claims

1, a kind of roller expander comprises mandrel (1), it is characterized in that bearing (4) being installed on the mandrel (1) and being set with the expanding cover, and this expanding cover comprises helical form body (6), is fixed with gum cover (9) on the body (6).

2, the described roller expander of claim 1 is characterized in that being connected with impervious barrier (8) between body (6) and the gum cover (9).

3, claim 1 or 2 described roller expanders is characterized in that the two ends envelope of expanding cover has stifle (2), and the inboard of stifle (2) is with sealing ring (7).

4, claim 1 or 2 described roller expanders is characterized in that said bearing (4) is a rolling bearing.

5, a kind of roller expander, comprise mandrel (1), it is characterized in that being equipped with on the mandrel (1) some groups of bearings (4), on the mandrel (1) between the two adjacent groups bearing (4) inner sleeve (11) is installed all, the outside of inner sleeve (11) is set with the expanding cover, this expanding cover comprises and the corresponding outer sleeve of inner sleeve (11) (10) that some joint outer sleeves (10) form the nodular structure, are set with gum cover (9) on it.

6, the described roller expander of claim 5 is characterized in that said bearing (4) is a rolling bearing.

7, claim 5 or 6 described roller expanders is characterized in that expanding cover two ends envelope has stifle (2), and stifle (2) is inboard with sealing ring (7).