阅读说明：本技术 真空吸水箱 (Vacuum suction box ) 是由 李庆祝 于 2020-06-18 设计创作，主要内容包括：本发明涉及造纸领域,具体说是一种真空吸水箱,主要由导入辊、导出辊、端面密封条、轴向密封装置、箱体组成,箱体与真空管路连通,轴向开孔的两侧安装轴向密封装置,箱体轴向开孔的两端装有端面密封条,轴向密封装置和端面密封条都安装于箱体开口侧的外表面上,轴向密封装置有密封槽、密封条和弹性装置组成,密封条在密封槽内位于弹性装置上部,两侧轴向密封装置的外侧分别安装导入辊和导出辊。本发明的密封条由弹性装置支撑,真空箱抽吸作业时,密封条可随网毯下移,网毯对吸水箱的压力由导入辊和导出辊支撑,在保证密封条和网毯之间密封性的同时大幅度减少网毯和密封条之间滑动摩擦,从而减少网毯的磨损、降低因网毯滑动摩擦而产生的功率消耗。(The invention relates to the field of papermaking, in particular to a vacuum suction box which mainly comprises a lead-in roller, a lead-out roller, end face sealing strips, an axial sealing device and a box body, wherein the box body is communicated with a vacuum pipeline, the axial sealing device is arranged on two sides of an axial opening, the end face sealing strips are arranged on two ends of the axial opening of the box body, the axial sealing device and the end face sealing strips are arranged on the outer surface of the opening side of the box body, the axial sealing device is provided with a sealing groove, the sealing strips and an elastic device, the sealing strips are positioned on the upper part of the elastic device in the sealing groove, and the lead-in roller and the lead-out roller are respectively arranged on the outer sides of the axial sealing devices on the two sides. The sealing strip is supported by the elastic device, when the vacuum box performs suction operation, the sealing strip can move downwards along with the net blanket, the pressure of the net blanket on the water suction box is supported by the guide-in roller and the guide-out roller, the sealing property between the sealing strip and the net blanket is ensured, and meanwhile, the sliding friction between the net blanket and the sealing strip is greatly reduced, so that the abrasion of the net blanket is reduced, and the power consumption caused by the sliding friction of the net blanket is reduced.)

1. The utility model provides a vacuum suction box mainly comprises leading-in roller, derivation roller, end face seal strip, axial seal device, box, and the box is installed in the paper machine frame, is the container of a top surface axial trompil, and with the vacuum line intercommunication, the end face seal strip is equipped with at the both ends of box axial trompil, and axial seal device and end face seal strip are all installed on the surface of box opening side, its characterized in that: axial sealing devices are arranged on two sides of the axial hole on the surface of the box body, and a guide-in roller and a guide-out roller are respectively arranged on the outer sides of the axial sealing devices on the two sides.

2. The suction box of claim 1, wherein: the axial sealing device mainly comprises a sealing groove, a sealing strip and an elastic device, wherein the sealing strip and the elastic device are arranged in the sealing groove, the elastic device is arranged at the bottom of the sealing groove, and the sealing strip is arranged on the upper part and two sides of the elastic device and in clearance fit with the inner wall of the sealing groove.

3. The suction box of claim 1, wherein: the leading-in roller and the leading-out roller mainly comprise roller bodies and bearing supporting devices, and the roller bodies can rotate around the axis under the support of the bearing supporting devices.

4. The suction box of claim 2, wherein: the elastic device in the sealing groove is a rubber pneumatic tire or a compression spring.

Technical Field

The invention relates to the field of papermaking, in particular to a vacuum suction box.

Background

Suction boxes are important equipment of paper machines, commonly used in the wire and press sections of paper machines, primarily for dewatering the paper sheet or cleaning the paper clothing. The main box body is a container with an axial hole on the top surface, and is fixed on a frame of a paper machine, the box body is communicated with a vacuum pipeline, the vacuum box panel made of wear-resistant materials is installed on the axial hole on the top surface of the box body, the surface of the vacuum box panel is contacted with a paper-making mesh blanket, and a vacuum suction channel is arranged in the panel and is used for sucking water vapor from paper pages or the mesh blanket so as to achieve the purpose of paper page dehydration or mesh blanket cleaning.

In normal production, the clothing of paper machine is in high-speed running state, and the papermaking clothing passes through the negative pressure adsorption of vacuum box and adsorbs on vacuum box panel surface, is in the slip friction state of face contact below the certain pressure all the time between vacuum box panel and the papermaking clothing, and this kind of face can lose clothing and sealing strip with the slip friction of face contact, reduces the life-span of clothing and sealing strip, leads to the power consumption of clothing operation great simultaneously.

Disclosure of Invention

In order to prolong the service life of the mesh blanket and reduce the power consumption of the mesh blanket operation, the invention provides a vacuum suction box, the friction between the suction box and the papermaking mesh blanket is small when a paper machine operates, the power consumption is low, and the service life of the papermaking mesh blanket can be prolonged.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention mainly comprises a guide-in roller, a guide-out roller, end face sealing strips, an axial sealing device and a box body, wherein the box body is arranged on a frame of a paper machine, is a container with an axial hole on the top surface and is communicated with a vacuum pipeline, the end face sealing strips are arranged at two ends of the axial hole of the box body, the axial sealing device and the end face sealing strips are arranged on the outer surface of the opening side of the box body, the axial sealing device is arranged at two sides of the axial hole on the surface of the box body, the guide-in roller and the guide-out roller are respectively arranged at the outer sides of the axial sealing devices at the two sides, the guide-in roller and the guide-out roller mainly comprise a roller body and a bearing supporting device, and the roller body can rotate around an axis under the support of the bearing supporting device. The axial sealing device mainly comprises a sealing groove, sealing strips and an elastic device, wherein the sealing strips and the elastic device are arranged in the sealing groove, the elastic device is arranged at the bottom of the sealing groove, the sealing strips are arranged at the upper part and two sides of the elastic device and are in clearance fit with the inner wall of the sealing groove, and the elastic device in the sealing groove is a rubber pneumatic tire or a compression spring.

The box body has the advantages that the position of the sealing strip can be lowered through the elastic device in the sealing groove, the guide-in roller and the guide-out roller are used for supporting the net blanket, and the sliding-friction between the net blanket and the sealing strip is greatly reduced, so that the abrasion of the net blanket is reduced, and the power consumption caused by the sliding friction of the net blanket is reduced. .

Drawings

The invention is further illustrated with reference to the following figures and examples.

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

In the figure, 1 is a leading-in roller, 2 is a leading-out roller, 3 is a sealing strip, 4 is a box body, 5 is a frame, 6 is an axial hole, 7 is a sealing groove, 8 is a rubber pneumatic tire, and 9 is a mesh blanket.

Detailed Description

In the embodiment shown in fig. 1, the device is horizontally installed on a paper machine and mainly comprises a lead-in roller 1, a lead-out roller 2, an end face sealing strip, an axial sealing device and a box body 4, wherein the top surface of the box body 4 is provided with an axial opening 6 and is communicated with a vacuum pipeline, the axial sealing device is installed on two sides of the axial opening 6 on the surface of the box body 4, the lead-in roller 1 and the lead-out roller 2 are respectively installed on the outer sides of the axial sealing devices on the two sides, and the lead-in roller 1 and the lead-out roller 2 are installed on a frame 5 of the paper machine. The axes of the leading-in roller 1 and the leading-out roller 2 are parallel to the axis of the axial opening, end face sealing strips are arranged at two ends of the axial opening 6 of the box body, the axial sealing device and the end face sealing strips are arranged on the upper surface of the box body 4, and two axial ends of the box body 4 are arranged on a frame 5 of the paper machine. The axial sealing device mainly comprises a sealing groove 7, a sealing strip 3 and a rubber pneumatic tire 8, wherein the sealing groove 7 is of a groove structure with a C-shaped section, the rubber pneumatic tire 8 is arranged at the bottom of the sealing groove 7, and the sealing strip 3 is arranged on the rubber pneumatic tire 8.

The axial sealing strip 3 of the embodiment is supported by the rubber pneumatic tire 8, compressed air with proper pressure is introduced into the rubber pneumatic tire 8, the rubber pneumatic tire 8 drives the sealing strip 3 to ascend, the sealing strip 3 is in contact with the papermaking clothing 9, a vacuum system of the vacuum box is started, the papermaking clothing 9 is adsorbed on the surface of the sealing strip 3 of the vacuum box, the clothing 9 is connected with the sealing strip 3 to fall, pressure generated by the vacuum box adsorbing the clothing 9 is transferred to the guide-in roller 1 and the guide-out roller 2, and on the premise that the sealing performance between the surface of the sealing strip 3 and the clothing 9 is guaranteed, sliding friction between the clothing 9 and the sealing strip 3 can be controlled through air pressure in the rubber pneumatic tire 8, so that abrasion of the sealing strip 3 to the clothing 9 is reduced, and running power consumption of the clothing 9 is reduced.