JPH0632289Y2 - Hot dryer polishing equipment in the drying process of paper manufacturing - Google Patents

Description

[Detailed Description of Device] a. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus for a hot dryer such as a Yankee dryer having a large diameter drying cylinder and a multi-cylinder dryer in a heating state in a paper manufacturing drying process.

B. 2. Description of the Related Art Conventionally, a round grindstone is usually used for polishing the surface of a dryer in the drying process of paper manufacturing, and water or cutting oil has been used during polishing. For this reason, it is usual that the polishing work of the dryer is performed at room temperature.

However, since the dryer cylinder is for drying the paper web brought into contact with the dryer surface by blowing steam into the interior thereof by radiant heat from the cylinder surface, the dryer surface has room temperature and operating temperature. However, the state has changed due to temperature expansion, and therefore, even if complete surface processing is performed at room temperature, the surface is subtly distorted at the actual operating temperature and the polishing effect is not exhibited.

C. Problems to be Solved by the Invention The problems to be solved by the present invention are as follows: by polishing the surface of the dryer in the drying step of paper manufacturing at the heating temperature of the actual operating state, It is intended to obtain a hot dryer polishing device in a drying process of paper manufacturing with extremely high smoothness accuracy.

D. Means for Solving the Problems The present invention has been made in view of the above problems, and includes a drive wheel driven by a drive motor, a touch wheel having an elastic roll surface of rubber or the like having a required hardness,
An endless belt wound between the drive wheel and the touch wheel; a tension applying means for applying a required tension between the drive wheel and the touch wheel to apply a required tension to the endless belt; A spiral groove provided on the surface of the elastic roll is provided, and the endless belt surface on the touch wheel side is brought into contact with the dryer surface whose surface temperature has been raised to the operating temperature in operation. It is intended to provide a hot dryer polishing device in the process.

E. Operation and Example Hereinafter, the configuration of one embodiment of the present invention will be described together with the operation with reference to the drawings.

A drive wheel 2 mechanically connected to the drive motor 1 and driven by the drive motor 1, and a touch wheel 4 having an elastic roll surface 3 of rubber or the like having a required hardness are provided. An endless belt 5 is wound between the drive wheel 2 and the touch wheel 4, and a tension applying device 6 is provided between the drive wheel 2 and the touch wheel 4 to connect the wheels 2 and 4 to each other. A moderate repulsive force is applied to the endless belt 5, and the required tension is applied to the endless belt 5. Thereby, the drive motor 1
The endless belt 5 is continuously rotated in a predetermined direction by driving. A spiral groove 7 is formed on the elastic roll surface 3 of the touch wheel 4. The hot dryer polishing device A is configured as described above. The surface of the endless belt 5 on the touch wheel 4 side of the hot drier polishing apparatus A is brought into contact with the surface of the drier 8 whose surface temperature, which is the object to be polished, has been raised to the operating temperature in the operating state. The hardness of the elastic roll surface 3 and the roughness of the abrasive particles of the endless belt 5 are selected according to the model and material of the dryer 8 of the object to be polished.

The hot dryer polishing device A is installed on a bed 9 to which a reciprocating device is attached for traveling.
A crown bar 10 attached to the bed 9 and calculated and set in advance makes it possible to crown the surface of the dryer 8 which is the object to be polished.

F. Effect of the Invention As is apparent from the above description, the present invention provides a hot-dryer polishing apparatus in the drying process of paper manufacturing according to the present invention, in which the polishing is performed in a heating condition in an actual operating state, thereby making Since the smoothness of the surface of the dryer is the highest, the surface of the dryer cylinder or the like, which has started operation after the new adjustment, can be sufficiently repolished, and the same operation as during the new adjustment can be performed.

[Brief description of drawings]

FIG. 1 is a schematic side view showing the configuration of a hot dryer polishing apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic plan view showing an example in which the hot dryer polishing apparatus is installed on a bed attached to a reciprocating device. 3 is a front view showing an example of the elastic roll surface of the touch wheel, and FIG. 4 is a sectional view showing an example of the elastic roll surface of the touch wheel. 1 ... driving motor, 2 ... driving wheel, 3 ... elastic roll surface, 4 ... touch wheel, 5 ... endless belt, 6 ... tensioning device, 7 ... spiral groove, 8 ... dryer

Claims (1)

[Scope of utility model registration request] 1. A drive wheel (2) driven by a drive motor (1) and an elastic roll surface (3) of rubber or the like having a required hardness.
And a touch wheel (4) having an endless belt (5) wound between the drive wheel (2) and the touch wheel (4)
A tension applying means (6) for applying a required tension between the drive wheel (2) and the touch wheel (4) to impart a required tension to the endless belt (5), and the elastic roll. A spiral groove (7) provided on the surface (3) is provided, and the endless belt (5) surface on the touch wheel (4) side is a dryer (8) in which the surface temperature is raised to the operating temperature of the operating state. A hot dryer polishing device in the drying process of paper manufacturing, characterized in that it can be moved in contact with the surface.