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Grinding Device Of Parting Line Of Resin Molding And Grinding Method

A resin forming and grinding device technology, which is applied in the direction of grinding machines, abrasive belt grinding machines, grinding/polishing equipment, etc., can solve the problems of parting line grinding and achieve the effect of rapid grinding

Active Publication Date: 2012-03-14
KAKIHARA KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is ground without tilting, there is a problem that parts other than the parting line 52 are ground unnecessarily

Method used

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  • Grinding Device Of Parting Line Of Resin Molding And Grinding Method
  • Grinding Device Of Parting Line Of Resin Molding And Grinding Method
  • Grinding Device Of Parting Line Of Resin Molding And Grinding Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

[0070] figure 1 It is a schematic perspective view showing the parting line polishing apparatus of the resin molded product of Example 1. figure 2 It is a schematic plan view showing the parting line polishing apparatus of the resin molded product of Example 1. image 3 It is a schematic side view showing the parting line polishing apparatus of the resin molded product of Example 1.

[0071] The parting line polishing apparatus of the present invention of Example 1 is provided with an endless belt-shaped polishing belt 1 that grinds the parting line 52 of the resin molded product W and travels in a substantially vertical direction, and adjacent to the polishing belt 1, a pair The polishing plate 2 on which the parting line 52 of the resin molded product W is subjected to finish polishing. The resin molded product W is carried using the workpiece holding tool 3 so...

Embodiment 2

[0102] Figure 8 Is an enlarged side view showing the belt pushing pulley of Example 2, Figure 8 (a) is the state of grinding the parting line of the upper corner, Figure 8 (b) is the state where the parting line of the lower corner is polished.

[0103] The belt pressing pulley 21 of the second embodiment replaces the structure in which the above-mentioned two pressing pulleys 22 advance and retreat, and is a structure by a seesaw method. The belt pressing pulley 21 is configured by attaching two pressing pulleys 22 freely advancing and retreating toward the back of the polishing belt 1 at both ends, and the intermediate position 32 of the connecting member 31 is rotated in a seesaw shape with an adjustment handle 33, which can be changed The inclination angle of the inclined surface of the polishing belt 1.

[0104] The parting line 52 formed on the upper corner of the resin molded product W is as Figure 8 As shown in (a), the belt pressing pulley 21 is inclined to grind the r...

Embodiment 3

[0108] Picture 9 It is a cross-sectional view showing the rotating plate of Example 3 provided with injection holes for removing the polishing slag of the polishing plate.

[0109] In the third embodiment, the rotating plate 10 is provided with injection holes 41 for removing the polishing slag adhering to the polishing plate 2. If the polishing plate 2 is used for a long period of time, the abrasive grains on the polishing surface of the resin molded product W will be clogged, and the polishing ability will decrease. Therefore, in the rotating plate 10 holding the polishing plate 2, a plurality of injection holes 41 are opened along the axial direction of the rotating shaft 9. By injecting compressed air from the injection hole 41, the polishing slag adhering to the polishing plate 2 can be removed in the state where the polishing plate 2 is mounted on the rotating plate 10. In the example shown in the figure, the supply of air to the injection hole 41 is a structure in which ...

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Abstract

The invention provides a grinding device of a parting line of a resin molding and can grinding resin moldings having different shapes quickly. The grinding device of the parting line of the resin molding is composed of an annular grinding belt (1) rotating along a generally perpendicular direction and grinding burrs or jumps of the parting line (52) of the resin molding (W); a push and press pulley (21) capable of moving freely and provided with the grinding belt (1) on the back for pushing and pressing a part of the grinding belt and forming an inclining angle of an incline face of the grinding belt (1); a grinding plate (2) used for fine grinding and having a smaller thickness a low rigidity than the grinding belt (1); and a work piece holding tool (3) carrying the resin molding (W) in a dismountable manner to make the parting line (52) in a generally horizontal direction.

Description

Technical field [0001] The present invention relates to a polishing technique for polishing the parting line, that is, burrs, of a resin molded product before a resin plating process, and particularly relates to a parting line formed around a resin molded product having irregularities, corners, or curved surfaces Parting line polishing device and polishing method for polished resin molded products. Background technique [0002] For resin-plated resin molded products, cracks (cracks) are likely to occur when resin-plated, so the parting line of the outer peripheral portion formed during resin molding is polished. In addition, it is necessary to grind the parting line for resin molded products that are in direct contact with human hands. For example, such as Picture 11 As shown, for a resin molded product W such as a synthetic resin handle 51, the parting line 52 formed on the joint portion during mold molding is polished. [0003] In the past, in the parting line of such resin mol...

Claims

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Application Information

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IPC IPC(8): B24B21/16B24B21/18
Inventor 柿原邦博野田义则王路贵史东山匡史
Owner KAKIHARA KOGYO CO LTD
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