CN203393450U

CN203393450U - Roll

Info

Publication number: CN203393450U
Application number: CN201320450356.6U
Authority: CN
Inventors: 侯贺刚
Original assignee: Hebei Xin Great Dong Textile Co Ltd
Current assignee: Hebei Xin Great Dong Textile Co Ltd
Priority date: 2013-07-26
Filing date: 2013-07-26
Publication date: 2014-01-15
Anticipated expiration: 2023-07-26

Abstract

The utility model discloses a roll which comprises a cylindrical roll body and a support shaft supporting the roll body. The support shaft and the roll body are coaxially arranged, the middle of the support shaft is provided with a cylindrical combining portion for fixing the middle of the inner wall of the roll body, two support portions extending to the outer side of the roll body are arranged on two sides of the combining portion respectively, the outermost end of each support portion is provided with a connecting end used for mounting a bearing, gaps are reserved between the support portions and the inner wall of the roll body, and the combining portion of the support shaft is fixedly connected with the middle of the inner wall of the roll body. When the support shaft is stressed by downward extrusion force, the extrusion force can be directly transmitted to the middle of the roll body, so that flexibility deformation of the roll body can be avoided, and uniform distribution of integral color of yarns is guaranteed.

Description

Pressure roller

Technical field

The utility model relates in a kind of textile industry, pressure roller used during to yarn dyeing.

Background technology

In textile industry, when yarn is dyeed, first make yarn pass through dye cell, yarn is dipped in dyestuff, and then by the pressure roller a pair of setting up and down on yarn process padding machine, pressure roller pushes yarn while rotating, and the excess dyestuff on yarn is squeezed out, and again flows back in dye cell.Existing pressure roller comprises roll body and supports the back shaft of this roll body, roll body is long cylindrical structure, two back shafts are separately fixed at Ta two ends, when the pressue device by padding machine is applied on these two back shafts by pressure, between upper and lower a pair of pressure roller, can produce huge extruding force.Because back shaft is fixed on the two ends of roll body, therefore,, if pressue device applied pressure is excessive, can there is flexible deformation in roll body, now back shaft will be bent downwardly, the middle part of roll body is because flexibly-acting is bent upwards, and the consequence causing is that the power that is squeezed of the yarn near back shaft is larger, and the squeezed output of dyestuff is larger, the paler colour of these yarns, and the extruding force being subject near the yarn in the middle part of roll body is less, color is darker, causes the integral color skewness of yarn.

Utility model content

For solving the deficiencies in the prior art, the utility model provides a kind of pressure roller, not yielding when being squeezed power, can guarantee that the integral color of yarn is evenly distributed.

For achieving the above object, pressure roller of the present utility model, the back shaft that comprises roll body and this roll body of support, described roll body is cylinder type, described back shaft and roll body are coaxially arranged, and the middle part of back shaft is provided with for being fixed on the both sides, ， joint portion, joint portion of the cylindricality of roll body internal face medium position and is provided with the Liang Ge support portion that extends to roll body outside, outermost end in support portion is provided with for bearings mounted link, between support portion and the internal face of roll body, has gap.

As to restriction of the present utility model, the diameter of described joint portion equates with roll body internal diameter.

As to restriction of the present utility model, described support portion is taper type.

As to restriction of the present utility model, the support portion of Yu Qi both sides, described joint portion can be separated from each other and be fixed with one.

As to restriction of the present utility model, the outer surface of described roll body is provided with rubber layer.

Adopt technique scheme, its beneficial effect is as follows: the joint portion of back shaft is fixedly connected with the medium position of roll body internal face, when back shaft is subject to downward extruding force, it can directly be delivered to extruding force the medium position of roll body, thereby can avoid the flexible deformation of roll body, guarantee that the integral color of yarn is evenly distributed; The diameter of joint portion equates with roll body internal diameter, can guarantee both combination effects, avoids both that radial displacement occurs; Support portion is taper type, and its cross section is gradually changed from the inside to the outside, has improved the intensity of support portion; Joint portion and support portion are separable structure, and both can manufacture respectively, can reduce the difficulty of manufacture; On the outer surface of roll body, rubber layer is set, can protects yarn, avoid its be extruded defeat disconnected.

Accompanying drawing explanation

Below in conjunction with the drawings and the specific embodiments, the utility model is done further to describe in detail:

Fig. 1 is structural representation of the present utility model.

In figure: 1, roll body; 2, back shaft; 21, joint portion; 22, support portion; 23, link; 3, rubber layer.

The specific embodiment

As shown in Figure 1, the present embodiment discloses a kind of pressure roller, it comprises roll body 1 and supports the back shaft 2 of this roll body 1, roll body 1 is cylinder type, back shaft 2 is coaxially arranged with roll body 1, is inserted in the inside of roll body 1, is provided with rubber layer 3 on the outer surface of roll body 1, it can increase the pliability on roll body 1 surface, avoids yarn to be pressed down.

Back shaft 2 integral body are spins taper, its middle part is provided with for being fixed on the cylindricality joint portion 21 of medium position of the internal face of roll body 1, these 21 places, joint portion are thicker, its diameter equates that with the internal diameter of roll body 1 ，Gai joint portion 21 can fix with known any method and roll bodies 1 such as welding or riveted joint.21 both sides, joint portion are that 22， support portion 22, support portion is extended to the outside of roll body 1 by the medium position of roll body 1, and the part of the outermost end that it exposes is set to for bearings mounted link 23.Support portion 22 is that the diameter at the position that joins, the structure ，Ta Yu joint portion 21 of taper type equates with joint portion 21, and the closer to link 23, diameter is less.Because it is taper type structure, therefore, between support portion 22 and the internal face of roll body 1, be that tool is gapped, that is to say, support portion 22 is not directly to roll body 1 application of force, and all application of force effects all must be delivered to roll body 1 by joint portion 21.

21Yu support portion, joint portion 22 can be integrally manufactured, if size is too large, also split manufacture as required, and then can be separated from each other and be connected to one, like this to its manufacture with safeguard all more convenient.

Claims

1. a pressure roller, the back shaft (2) that comprises roll body (1) and this roll body of support (1), it is characterized in that: described roll body (1) is cylinder type, described back shaft (2) is coaxially arranged with roll body (1), the middle part of back shaft (2) is provided with for being fixed on the joint portion (21) of the cylindricality of roll body (1) internal face medium position, in joint portion, (21) both sides are provided with the Liang Ge support portion (22) that extends to roll body (1) outside, in support portion, the outermost end of (22) is provided with for bearings mounted link (23), between the internal face of support portion (22) and roll body (1), there is gap.

2. pressure roller according to claim 1, is characterized in that: the diameter of described joint portion (21) equates with roll body (1) internal diameter.

3. pressure roller according to claim 2, is characterized in that: described support portion (22) are taper type.

4. pressure roller according to claim 1, is characterized in that: the support portion (22) of Yu Qi both sides, described joint portion (21) can be separated from each other and be fixed with one.

5. according to the pressure roller described in any one in claim 1 to 4, it is characterized in that: the outer surface of described roll body (1) is provided with rubber layer (3).