Manufacturing method for compounding table tennis bat base board and rubber sheet

Abstract

The invention discloses a manufacturing method for compounding a base board and a rubber sheet of a table tennis bat, and relates to the technical field of table tennis bat processing. The manufacturing method comprises the following steps: firstly setting the temperature of a manufacturing environment to be 22-28 DEG C, then uniformly smearing an adhesive on the board surface of the base board and the back surface of the rubber sheet, covering the base plate with the rubber sheet when the water content of the adhesive is reduced to be 20% to 30%, and pressing for 2 to 3 min under the pressureof 0.8 to 1.2 Mpa so as to complete compounding of the base board and the rubber sheet. The drying rate of the adhesive is controlled by setting a constant-temperature processing environment, the rubber sheet is completely adhered onto the base board by smearing the adhesive on the board surface of the base board and the back surface of the rubber sheet simultaneously, and then bubbles existing between the rubber sheet and the base board are completely eliminated through pressing treatment, so that the phenomenon that the rubber sheet is bubbled or even fall off in the using process of the table tennis bat is prevented.

Description

Technical field: [0001] The invention relates to the technical field of table tennis racket processing, in particular to a composite manufacturing method of a table tennis racket bottom plate and rubber. Background technique: [0002] A table tennis racket generally includes a handle and a bottom plate. The front and back sides of the bottom plate are pasted with rubber. The rubber skin includes a grained rubber skin layer and a sponge layer that are glued together from top to bottom, and the grained rubber skin layer is a rubber skin with rubber particles on one side and smooth on the other side. The bottom plate is usually made of wood with appropriate thickness, and at least 88% of the board surface is from natural wood. The rubber is glued to the bottom plate by glue. According to regulations, the glue layer must penetrate and have a uniform thickness. [0003] At present, most of the glue for rubber paste is solvent-based glue, which contains a large amount of volatile organ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the glues used for pasting rubber are solvent-based glues, which contain a large amount of volatile organic solvents, which pollute the processing environment greatly; and some solvents will damage the rubber, and even penetrate into the sponge layer, destroying the structure of the sponge layer, so that the use effect cannot be guaranteed.

In addition, the glue used not only needs to have excellent bonding properties so that the glue can be completely attached to the bottom plate, but also must ensure that the rubber can be completely torn off when replacing the rubber, so as to prevent the rubber from remaining on the bottom plate and affecting the adhesion of the new rubber

However, the glue currently used is difficult to meet these two properties at the same time, partly due to the strong bonding performance, it is difficult to completely tear off the bottom plate, and partly due to the weak bonding performance, it is difficult to make the rubber completely fit on the bottom plate, thus affecting normal use.