CN212611669U

CN212611669U - Blind hole grooved papermaking press roll

Info

Publication number: CN212611669U
Application number: CN202021212981.3U
Authority: CN
Inventors: 陈欢欢; 李彩鹏; 李文宾
Original assignee: Zhejiang Jinli Environmental Paper Co ltd
Current assignee: Zhejiang Jinli Environmental Paper Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-02-26
Anticipated expiration: 2030-06-28

Abstract

The technical scheme of the utility model is realized like this: a blind hole grooved papermaking press roll comprises a roll shell, wherein an inner cavity is formed in the roll shell, the roll shell comprises a roll surface layer and a reinforcing layer arranged in the roll surface layer, a plurality of blind holes are uniformly formed in the outer surface of the roll surface layer, a plurality of grooves which are arranged in parallel are formed in the outer surface of the roll surface layer, the grooves are intersected with the blind holes, a water storage pipe is arranged in the inner cavity, the water storage pipe is spirally arranged on the inner side wall of the reinforcing layer, a plurality of through holes are formed in the roll surface layer, and each through hole is communicated with the water storage pipe; a rubber ring is also arranged in the blind hole; the utility model discloses non-deformable and fracture in the course of the work, structural strength is higher, and dewaters effectually, dewaters efficiently.

Description

Blind hole grooved papermaking press roll

Technical Field

The utility model belongs to the technical field of papermaking equipment technique and specifically relates to a blind hole adds papermaking squeeze roll of furrow.

Background

The demand of paper in daily life is increasing, and in the process of papermaking, the steps are mainly divided into forming, pressing and drying, and a press roll is a main component of a press part of a papermaking machine; the press roll mainly has the function of dewatering, and the water content of a wet paper web in a paper machine is reduced by a pressing method; the existing blind hole grooving press roll mainly forms grooves on the roll surface to provide a drainage channel for extruded water so as to achieve the dewatering effect; however, the existing blind hole and groove pressing roll is often deformed and easily broken in the dehydration process, and the dehydration efficiency is not high.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a blind hole that structural strength is high, non-deformable and dehydration efficiency is high presses roller with papermaking of furrow in the use.

The technical scheme of the utility model is realized like this: the utility model provides a papermaking press roll of blind hole adds flute which characterized in that: the roller shell comprises a roller shell body, wherein an inner cavity is formed in the roller shell body, the roller shell body comprises a roller surface layer and a reinforcing layer which is arranged in the roller surface layer and is in contact with the roller surface layer, the reinforcing layer is fixedly connected with the roller surface layer, a plurality of blind holes which are uniformly formed in the outer surface of the roller surface layer are formed in the outer surface of the roller surface layer, a plurality of grooves which are arranged in parallel to each other are formed in the outer surface of the roller surface layer, the grooves are intersected with the blind holes, water storage pipes are arranged in the inner cavity, the water storage pipes are spirally arranged on the inner side wall of the reinforcing layer, a plurality of through holes are formed in the roller surface layer, the through holes are formed between the blind holes; and a rubber ring for preventing water from flowing backwards is further arranged in the blind hole.

Preferably: and a water pumping device for pumping water in the water storage pipe is further arranged on one side of the roller shell and is communicated with one end of the water storage pipe.

Preferably: and a spring is further installed on the inner side wall of the reinforcing layer, and one end of the spring is fixedly connected with the reinforcing layer.

Preferably: the rubber ring is fixed on the inner side wall of the blind hole, and the rubber ring is obliquely arranged towards the direction of the inner cavity.

Preferably: the reinforcing layer is of a net structure.

Preferably: the reinforcing layer and the water storage pipe are both made of aluminum profiles.

The utility model has the advantages that:

(1) the utility model discloses a setting up of back up coat and retaining pipe strengthens the overall structure intensity of squeezing the roller, avoids when using, squeezes the roller and appears warping or cracked phenomenon and influence dehydration effect, leads to product quality to reduce, has increased substantially the intensity of squeezing the roller.

(2) The utility model discloses a dewatering efficiency has been strengthened in the setting of through-hole and retaining pipe, presses the roller at the in-process of dehydration, and water enters into the drain pipe from the through-hole, has strengthened the dehydration effect, and partial water reflux is avoided in the setting of rubber ring, and the setting of spring reduces the vibrations of pressing when the roller rolls, guarantees the dehydration effect, improves stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic partial cross-sectional view of an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of the present invention;

the examples in the figure are: 1. inner chamber, 2, roller surface layer, 3, back up coat, 4, blind hole, 5, slot, 6, water storage pipe, 7, through-hole, 8, rubber ring, 9, pumping device, 10, spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

First embodiment

As shown in figures 1-4, the utility model discloses a blind hole 4 grooved papermaking press roll, which comprises a roll shell, wherein an inner cavity 1 is arranged in the roll shell, the roll shell comprises a roll surface layer 2 and a reinforcing layer 3 which is arranged in the roll surface layer 2 and is contacted with the roll surface layer 2, the reinforcing layer 3 is fixedly connected with the roll surface layer 2, a plurality of blind holes 4 which are uniformly arranged are arranged on the outer surface of the roll surface layer 2, the aperture of each blind hole 4 is 3mm, the depth of each blind hole is 9mm, a plurality of grooves 5 which are arranged in parallel with each other are also arranged on the outer surface of the roll surface layer 2, the width of each groove 5 is 0.4mm, the depth of each groove is 3mm, the grooves 5 are intersected with the blind holes 4, water storage pipes 6 are arranged in the inner cavity 1 of each groove 5, the water storage pipes 6 are fixed on the inner side wall of the reinforcing layer 3 in a spiral shape, a plurality of through holes 7 are, the through holes 7 are formed between the blind holes 4 and are intersected with the grooves 5, and each through hole 7 is communicated with the water storage pipe 6; and a rubber ring 8 for preventing water from flowing backwards is also arranged in the blind hole 4.

Through above-mentioned technical scheme, through adding one deck back up coat 3 in roll surface course 2, guarantee to squeeze the structural strength on roll surface, avoid squeezing the roll and warp at the during operation atress, lead to the phenomenon that dehydration effect descends, product quality reduces, improved the overall structure intensity who squeezes the roll, through-hole 7 and water storage pipe 6, during operation water enters into the drain pipe from through-hole 7, have strengthened the dewatering effect, have improved dewatering efficiency.

In addition, when the press roll works, water enters the through holes 7 to extrude air in the through holes 7, and simultaneously, the water in the grooves 5 flows along the grooves 5 to prevent the water from returning to the paper surface again.

In this embodiment, a water pumping device 9 for pumping water in the water storage pipe 6 is further arranged on the right side of the roller shell, and a water pumping input end of the water pumping device 9 is communicated with a right port of the water storage pipe 6.

Through above-mentioned technical scheme, the setting of pumping device 9, the water that enters into in water storage pipe 6 at the squeeze roll course of work extracts, forms the negative pressure in water storage pipe 6 to a certain extent, makes water get into through-hole 7 discharge more easily, has strengthened the dehydration effect, and dehydration efficiency improves.

In this embodiment, the rubber ring 8 is fixed on the inner side wall of the blind hole 4, and the rubber ring 8 is obliquely arranged towards the inner cavity 1.

Through the technical scheme, rubber ring 8 sets up to 1 slope of inner chamber, when water gets into in blind hole 4, reduce the hindrance that receives when water gets into blind hole 4, make water get into in blind hole 4 smoothly, and simultaneously, water is after getting into blind hole 4, water in blind hole 4 receives the hindrance of rubber ring 8 when outer blind hole 4 moves, rubber ring 8 has elasticity, when the water-washed in blind hole 4 strikes the rubber ring 8 of slope, water can receive a reverse thrust and restrict most water in blind hole 4, avoid getting into the water in blind hole 4 and flow out again, the dehydration effect has been guaranteed.

In this embodiment, the reinforcing layer 3 is a net structure.

Through above-mentioned technical scheme, the material has been saved to the network structure of back up coat 3, has alleviateed the weight of squeezing the roller, gives more spaces of moisture, makes things convenient for water to enter into water storage pipe 6 from through-hole 7, has guaranteed the stability of dehydration in-process.

In this embodiment, the reinforcing layer 3 and the water storage pipe 6 are both made of aluminum profiles.

Through above-mentioned technical scheme, the corrosion resistance of aluminium alloy is stronger, and intensity is high, and the plasticity chamber has prolonged the life who squeezes the roller, and after squeezing the roller and damaging, aluminium alloy recycle, economical and practical.

Second embodiment

As shown in fig. 4, unlike the above embodiment, in this embodiment, springs 10 are further installed on the inner side wall of the reinforcing layer 3, one end of each spring 10 is fixedly connected to the reinforcing layer 3, the number of the springs 10 is four, the four springs 10 are evenly spaced on the inner side wall of the reinforcing layer 3, and the springs 10 are damping springs 10.

Through the technical scheme, the spring 10 is arranged, when the squeezing roller is used for dewatering, the generated vibration is transmitted to the spring 10, the vibration of the squeezing roller is reduced, the service life of the squeezing roller is prolonged, the stability of work dewatering is guaranteed, the work precision of the squeezing roller is improved, and the dewatering effect and the product quality are improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a papermaking press roll of blind hole adds flute which characterized in that: the roller shell comprises a roller shell body, wherein an inner cavity is formed in the roller shell body, the roller shell body comprises a roller surface layer and a reinforcing layer arranged in the roller surface layer, a plurality of blind holes which are uniformly formed are formed in the outer surface of the roller surface layer, a plurality of grooves which are arranged in parallel are formed in the outer surface of the roller surface layer, the grooves are intersected with the blind holes, a water storage pipe is arranged in the inner cavity, the water storage pipe is spirally arranged on the inner side wall of the reinforcing layer, a plurality of through holes are formed in the roller surface layer, and each through hole is communicated with the water storage pipe; and a rubber ring for preventing water from flowing backwards is further arranged in the blind hole.

2. A blind grooved papermaking press roll according to claim 1, characterized in that: and a water pumping device for pumping water in the water storage pipe is further arranged on one side of the roller shell and is communicated with one end of the water storage pipe.

3. A blind grooved papermaking press roll according to claim 1, characterized in that: and a spring is further installed on the inner side wall of the reinforcing layer, and one end of the spring is fixedly connected with the reinforcing layer.

4. A blind grooved papermaking press roll according to claim 1, characterized in that: the rubber ring is fixed on the inner side wall of the blind hole, and the rubber ring is obliquely arranged towards the direction of the inner cavity.

5. A blind grooved papermaking press roll according to claim 1, characterized in that: the reinforcing layer is of a net structure.

6. A blind grooved papermaking press roll according to claim 1, characterized in that: the reinforcing layer and the water storage pipe are both made of aluminum profiles.