CN201087231Y

CN201087231Y - Middle bottom roller with close-tooth reticulate pattern

Info

Publication number: CN201087231Y
Application number: CNU2007201274536U
Authority: CN
Inventors: 张新民; 徐美
Original assignee: Jingwei Textile Machinery Co Ltd
Current assignee: Jingwei Textile Machinery Co Ltd
Priority date: 2007-08-15
Filing date: 2007-08-15
Publication date: 2008-07-16
Anticipated expiration: 2017-08-15

Abstract

The utility model relates to a dense tooth reticulate pattern middle bottom roller, which belongs to the spinning frame field. The utility model solves the technical problems during the processing process, the bending deformation and the roundness have greater influence to the conformity of a tooth shape, the tooth-shaped burr, the tooth top width and the diagonal line are inconsistent, a spiral deflection angle is caused, the bottom apron is easy to be caught and is easy to fall off during the operation process, and the service life of the bottom apron, and the formed yarn quality are affected. The working surface tooth profile pitch t of the dense tooth reticulate pattern middle bottom roller is 1.20 to 1.22 mm, the tooth profile angle beta is 100 to 120 degrees, the tooth top width is 0.29 to 0.31 mm, and the reticulate pattern prismatic angle alpha is 30 degrees. Through adopting the dense tooth with small pitch and the small prismatic reticulate pattern working surface tooth profile, the tooth bottom and the tooth flank are smooth and are matched with the bottom apron, to obtain even frictional force, therefore, the utility model is meshed with the top and the bottom aprons to obtain steady excessive drafting, the phenomenon that the bottom apron falls off can be thoroughly eliminated, the service life of the bottom apron can be prolonged, the formed yarn quality can be improved, and the utility model is widely used for the middle bottom roller working surfaces in the drafting systems of a roving frame and a spinning frame.

Description

Close tooth reticulate pattern middle bottom roller

Technical field

The utility model belongs to fine spining machine, is specifically related to a kind of close tooth reticulate pattern middle bottom roller.

Background technology

Middle bottom roller working face profile of tooth in the fine spining machine is a coarse pitch bastard reticulate pattern profile of tooth at present, see Fig. 1, part is in process, flexural deformation and circularity are bigger to the uniformity influence of profile of tooth, the profile of tooth burr, the tooth top width diagonal is inconsistent, produces the spiral drift angle, apron down easy to hang and decortication circle in the use, following apron service life of influence and yarn quality.The technical parameter of existing close tooth reticulate pattern middle bottom roller is: pitch t=1.89mm, profile angle β are 120 °, tooth top width h=0.5mm, reticulate pattern prismatic angle α=30 °.

Summary of the invention

Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of close tooth reticulate pattern middle bottom roller is provided.Can solve middle bottom roller reticulate pattern profile of tooth burr, the tooth top width diagonal is inconsistent and the spiral drift angle that produces prolongs cutter life, improves profile of tooth luminosity, improves down apron service life, improves yarn quality.

The technical solution of the utility model: close tooth reticulate pattern middle bottom roller, the pitch t=1.20～1.22mm of described close tooth reticulate pattern middle bottom roller working face profile of tooth, profile angle β is 100 °～120 °, tooth top width h=0.29～0.31mm, reticulate pattern prismatic angle α=30 °.

The utility model compared with prior art has following beneficial effect:

Close tooth reticulate pattern middle bottom roller, adopt close tooth fine pith, little prismatic reticulate pattern working face profile of tooth, at the bottom of the tooth, flank is smooth with the supporting frictional force of following apron even, steady in guaranteeing to use with upper and lower apron engagement transition drawing-off, can thoroughly eliminate down apron knocking over phenomenon, prolong down apron service life, improve yarn quality, be widely used in the middle bottom roller working face in the drafting system of rove, fine spining machine.

Description of drawings

Fig. 1 is existing bastard reticulate pattern middle bottom roller reticulate pattern profile of tooth figure;

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

Fig. 3 is the close tooth reticulate pattern of the utility model middle bottom roller reticulate pattern profile of tooth figure;

Fig. 4 is the A-A cutaway view of Fig. 3.

The specific embodiment

The utility model is described in further detail by embodiment in conjunction with the accompanying drawings:

As shown in Figure 1 and Figure 2, be coarse pitch bastard reticulate pattern profile of tooth for the middle bottom roller working face profile of tooth in the fine spining machine of prior art.

As shown in Figure 3, Figure 4, close tooth reticulate pattern middle bottom roller, the pitch t=1.21mm of its described close tooth reticulate pattern middle bottom roller working face profile of tooth, profile angle β is 120 °, tooth top width h=0.3mm, reticulate pattern prismatic angle α=30 °.

Claims

1. close tooth reticulate pattern middle bottom roller is characterized in that: the pitch t=1.20～1.22mm of described close tooth reticulate pattern middle bottom roller working face profile of tooth, profile angle β is 100 °～120 °, tooth top width h=0.29～0.31mm, reticulate pattern prismatic angle α=30 °.