CN201406215Y - A soft rubber surface groove flattening roller - Google Patents

Abstract

The utility model belongs to a flattening roller, in particular to a soft rubber surface groove flattening roller suitable for coating, coating, compounding, printing and other industries for flattening flexible substrates. It includes a mandrel, the mandrel is covered with a soft rubber surface, and there are annular rectangular grooves on the soft rubber surface. The annular rectangular grooves are arranged at equal intervals on the soft rubber surface, and the inclination angle of the annular rectangular grooves is The angle is between 70° and 85°. The utility model has the advantages of good flattening effect, wide wrapping angle range, suitable for flattening various flexible substrates, and especially suitable for use under vacuum conditions.

Description

A soft rubber surface groove flattening roller

technical field

The utility model belongs to a flattening roller, in particular to a soft rubber surface groove flattening roller suitable for coating, coating, compounding, printing and other industries for flattening flexible substrates.

Background technique

At present, in the textile, printing and dyeing, film, coating, coating, compounding, papermaking, printing and other industries, there is a problem of wrinkling of flexible substrates. There are many reasons for wrinkles. Such as the reason of the substrate itself, the reason of the equipment, and the influence of many aspects such as process conditions and external environment. Defects in the substrate itself, such as uneven thickness of the substrate. When tension is applied to the base material, wrinkles are likely to occur at places where the thickness of the base material is thin. Wrinkling is also prone to occur when the substrate has elastic edges in the width direction. During the installation and manufacturing process of the equipment, due to the non-parallel or deformation of each guide roller, it is easy to cause wrinkles on the substrate. Due to the requirement of process conditions, the base material is divided into different tension ranges during operation, which also easily leads to wrinkles of the base material. Variations in temperature or humidity in the working environment throughout the process flow of the substrate can also cause the substrate to wrinkle.

Due to the above reasons, in order to avoid wrinkles on the substrate and improve product quality and production efficiency, it is necessary to flatten the substrate before creases and surface defects appear. A variety of flattening rollers have appeared so far, such as arc-shaped flattening rollers, drum-shaped flattening rollers, threaded flattening rollers, etc. However, the existing various flattening rollers have disadvantages such as complex structure, unsatisfactory flattening effect, and narrow application range.

Contents of the invention

The object of the present invention is to provide a grooved flattening roller with a soft rubber surface, which is simple in structure, good in flattening effect, wide in angle range, suitable for flattening various substrates, and especially suitable for use under vacuum conditions.

The present invention is achieved in this way, a flattening roller with grooves on a soft rubber surface, which includes a mandrel, the mandrel is covered with a soft rubber surface, and an annular rectangular groove is opened on the soft rubber surface.

The annular rectangular grooves are arranged at equal intervals on the soft rubber surface.

The inclination angle of the annular rectangular groove is between 70° and 85°.

The material of the mandrel is stainless steel.

The material of the soft rubber surface is nitrile rubber or silicon rubber.

The utility model has the advantages of good flattening effect, wide wrapping angle range, suitable for flattening various flexible substrates, and especially suitable for use under vacuum conditions.

Description of drawings

Fig. 1 is a schematic diagram of a flattening roller with soft rubber surface grooves provided by the utility model.

FIG. 2 is a partially enlarged view of FIG. 1 .

In the figure, 1 mandrel, 2 soft rubber surfaces, 3 annular platforms, 4 annular grooves.

Detailed ways

Below in conjunction with accompanying drawing and embodiment some information of this book is described in detail:

As shown in Figure 1 and Figure 2, a flattening roll with soft rubber surface grooves, it includes a mandrel 1, the mandrel is covered with a soft rubber surface 2, and an annular rectangular groove is opened on the soft rubber surface 2 4. The annular rectangular grooves 4 are arranged at equal intervals along the axial direction of the soft rubber surface 2 . The inclination angle of the annular rectangular groove 4 is between 70° and 85°. The material of the mandrel 1 is stainless steel. The material of the soft rubber surface 2 is nitrile rubber or silicon rubber.

A flattening roller with soft rubber surface grooves, the structure is that many equidistant annular rectangular grooves are processed on the entire roller surface, the annular rectangular grooves have a certain inclination angle, and the depth of the annular grooves is sequentially from the center of the flattening roller surface to both ends Deepen, and at the same time, the flattening rollers are symmetrical in size from the middle to both sides. On the roller surface, equidistant annular surfaces contacting the base material are formed. The pressure exerted by the tension of the flexible substrate on the annular surface causes the deformation of the annular platform, and the deformation of the annular platform increases from the center to both sides, driving the contacted flexible substrate to extend in the width direction. Use nitrile rubber with soft rubber surface, and design the hardness of nitrile rubber so that it will not cause damage to the substrate.

As shown in Figure 1, the mandrel 1 is covered with a soft rubber surface 2 with low hardness. In order to improve the bearing capacity of the mandrel 1, the material can be medium carbon steel or alloy steel, or stainless steel according to needs. The soft rubber surface 2 is made of nitrile rubber or silicone rubber to improve the service life and increase its conductivity, which can effectively reduce the static electricity generated by friction with the plastic substrate and meet the needs of various flexible substrates. flatten without causing damage. In order to improve the adhesion of the soft rubber surface 2, the surface of the mandrel 1 requires a high roughness at the lagging place to achieve a good bonding effect.

Many equidistant annular rectangular grooves 4 are processed on the whole soft rubber surface 2 roll surfaces. The annular rectangular groove 4 has a certain inclination angle, ranging from 70° to 85°, and the depth of the annular groove gradually deepens from the center of the flattening roller surface to both ends. The depth difference between the center and the end of the annular rectangular groove 4 is determined by the length of the roll surface. The shorter the roll surface, the smaller the depth difference of the annular groove 4 is. The larger the roll surface length is, the greater the depth difference of the annular groove 4 is. The size of the flat roller is symmetrical from the middle to both sides. An annular table 3 is formed on the roller surface to contact the base material. The pressure exerted by the tension of the flexible base material on the ring table 3 causes the deformation of the ring table 3. Since the ring table 3 has an outward angle, and the size of the ring table 3 gradually increases outwards, the outward deformation of the ring table 3 becomes larger. As the size increases, it drives the contacted flexible substrate to extend in the width direction. The ideal flattening effect can be achieved by rationally designing the dimensions of the ring platform 3 and the ring groove 4 . Due to its flattening characteristics, the substrate wrap angle range can be greater than 180°.

Mandrel 1 is made of solid material, which eliminates the dead space for pumping. During the process of wrapping, it ensures that the wrapping layer of 2 is dense, eliminates air bubble entrainment, and reduces the pumping time of vacuum equipment.

Install a high-precision bearing on the first connecting end of the mandrel, which can be replaced with any idler roller with wrap angle in the equipment. High linear speed, no noise, stable transmission, easy installation.

The utility model avoids and reduces the existence of unfavorable spaces for vacuum pumping in structure, is suitable for use under vacuum conditions, and reduces the pumping time of vacuum equipment.

Claims (5)

1. A soft rubber surface groove flattening roller, which comprises a mandrel (1), and the mandrel is covered with a soft rubber surface (2), characterized in that: a ring is formed on the soft rubber surface (2) shaped rectangular slot (4). 2. A flattening roller with soft rubber surface grooves according to claim 1, characterized in that: said annular rectangular grooves (4) are arranged at equal intervals along the axial direction of the soft rubber surface (2). 3. A soft rubber surface grooved flattening roller according to claim 1 or 2, characterized in that: the inclination angle of the annular rectangular groove (4) is between 70° and 85°. 4. A groove flattening roll with soft rubber surface as claimed in claim 1, characterized in that: the material of the mandrel (1) is stainless steel. 5. A grooved flattening roll with a soft rubber surface as claimed in claim 1, characterized in that: the material of the soft rubber surface (2) is NBR or silicone rubber.

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