阅读说明：本技术 一种卧式连续螺杆挤出型捏合机尾部密封结构 (Tail sealing structure of horizontal continuous screw extrusion type kneading machine ) 是由 朱宏亮 夏进 马正光 于 2019-10-25 设计创作，主要内容包括：本发明涉及捏合机技术领域,具体为一种卧式连续螺杆挤出型捏合机尾部密封结构,其能够有效防止物料泄漏至轴承处,提高密封可靠性,其包括螺杆,所述螺杆尾部连接安装于支撑筒体的轴承,所述轴承前端设置有密封装置,其特征在于,所述密封装置包括前密封圈、后密封圈,所述前密封圈与所述后密封圈之间形成排泄腔,所述支撑筒体底部开有连通所述排泄腔的排泄口。(The invention relates to the technical field of kneading machines, in particular to a tail sealing structure of a horizontal continuous screw extrusion type kneading machine, which can effectively prevent materials from leaking to a bearing and improve the sealing reliability.)

1. The utility model provides a horizontal continuous screw rod extrusion type kneader afterbody seal structure, its includes the screw rod, the screw rod end connection is installed in the bearing of support barrel, the bearing front end is provided with sealing device, its characterized in that, sealing device includes preceding sealing washer, back sealing washer, preceding sealing washer with form the escape cavity between the back sealing washer, it has the intercommunication to support barrel bottom the escape orifice in escape cavity.

2. The horizontal continuous screw extrusion kneader tail seal structure according to claim 1, characterized in that the front seal ring front end is further provided with a labyrinth seal structure.

Technical Field

The invention relates to the technical field of kneading machines, in particular to a tail sealing structure of a horizontal continuous screw extrusion type kneading machine.

Background

In the production process of lithium cell, can use the kneader, the present commonly used has horizontal continuous screw to extrude type kneader, and its screw rod front end bearing and motor, tail end are supported by the bearing, can set up the one deck sealing washer in bearing the place ahead and prevent that the material from getting into the bearing, can leak out from the sealing washer when having a small amount of materials behind the material pressure increase of carrying, can influence the result of use of bearing after getting into the bearing, need artifical clearance, influenced normal production.

Disclosure of Invention

In order to solve the problem that the existing tail part is easy to leak, the invention provides a tail part sealing structure of a horizontal continuous screw extrusion type kneader, which can effectively prevent materials from leaking to a bearing and improve the sealing reliability.

The technical scheme is as follows: the utility model provides a horizontal continuous screw rod extrusion type kneader afterbody seal structure, its includes the screw rod, the screw rod end connection is installed in the bearing of support barrel, the bearing front end is provided with sealing device, its characterized in that, sealing device includes preceding sealing washer, back sealing washer, preceding sealing washer with form the escape cavity between the back sealing washer, it has the intercommunication to support barrel bottom the escape orifice in escape cavity.

The front sealing ring is further characterized in that a labyrinth sealing structure is further arranged at the front end of the front sealing ring.

After the sealing device is adopted, when materials pass through the front sealing ring, the materials are discharged through the discharge port, the rear sealing ring is basically not extruded by the materials, the materials are not leaked to the bearing, and the sealing reliability is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of a point a in fig. 1.

Detailed Description

Referring to fig. 1 and 2, the tail sealing structure of the horizontal continuous screw extrusion type kneader comprises a screw 1, the tail of the screw 1 is connected with a bearing arranged on a support cylinder 2, the front end of the bearing is provided with a sealing device, the sealing device comprises a front sealing ring 4 and a rear sealing ring 5, a discharge cavity 6 is formed between the front sealing ring 4 and the rear sealing ring 5, and the bottom of the support cylinder 2 is provided with a discharge port 7 communicated with the discharge cavity 6.

In order to better ensure the sealing shape, the front end of the front sealing ring 4 is also provided with a labyrinth sealing structure 3, the labyrinth sealing structure 3 can reduce the material flowing to the front sealing ring 4, and the leakage amount is reduced, so that the leaked material can be discharged from the discharge opening 7 in time.

The double-screw structure is adopted in the embodiment, the two discharge cavities 6 are communicated, and share one discharge opening 7 at the bottom, so that the structure is simple.