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A spark plug sealing washer locking molding method and the sealing washer

A technology of sealing gasket and forming method, applied in spark plugs, spark plug manufacturing, engine sealing, etc., can solve problems such as difficult to control boss shape, inner ring deformation, damage to spark plug components, etc. easy to achieve effect

Active Publication Date: 2018-09-07
ZHUZHOU TORCH SPARK PLUG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The existing solid gasket anti-loosening and falling-off technical schemes all adopt the stamping technical scheme to produce some boss blocks by pressing around the inner ring of the solid gasket, which requires a lot of pressure to deform the inner ring, which is easy Cause damage to other parts of the spark plug;
[0004] 2. Since the boss is formed by pressing deformation to prevent the gasket from falling out, the pressing mold of the gasket needs to be made thicker, otherwise it is easy to be crushed, and this will cause the volume of the overall pressing mold to become large, which is not conducive to the spark plug. In-line assembly of gaskets;
[0005] 3. It is difficult to control the shape of the pressed boss by pressing the boss, and it may even cause the gasket to be stuck, which is not conducive to the sealing of the gasket
[0011] Although the above-mentioned patents all involve the sealing gasket of the spark plug, and put forward some improved technical solutions, it can be found that these patents do not really solve the problems that the sealing gasket of the spark plug is prone to occur during the compression molding process, so the above mentioned Some of the problems mentioned above still exist and need to be further improved

Method used

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  • A spark plug sealing washer locking molding method and the sealing washer
  • A spark plug sealing washer locking molding method and the sealing washer
  • A spark plug sealing washer locking molding method and the sealing washer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] as attached figure 1 , 2 As shown in 3 and 4, a spark plug gasket locking molding method, using a single-layer flat gasket, the inner ring hole of the single-layer flat gasket 1 is penetrated from the ignition end 2 of the spark plug, and passed through the thread to the relief groove 3, and make the solid washer 1 close to the outer circular support surface 4 of the spark plug housing; then put the spark plug with the solid washer 1 into the stamping equipment 5, and place the spark plug on the spark plug by using the pair of splitting dies 6 installed in the stamping equipment The inner ring of the solid washer on the outer support surface of the shell is cut. Under the action of the splitting die 6, the surface of the solid washer 1 that is cut by the die at the inner hole of the solid gasket 1 will undergo material deformation, thereby moving from the inner hole to the relief groove. between them to form a lock that prevents the gasket from falling off the spark pl...

Embodiment 2

[0047] The basic principle of embodiment two is the same as that of embodiment one, but the structure is different, as attached image 3 and 4 As shown, it is a method of locking and forming the sealing gasket of spark plug. The sealing gasket is a solid gasket. The inner ring of the solid gasket is penetrated from the ignition end of the spark plug, and passed through the thread to the relief groove, and the solid gasket is tightly attached to the spark plug shell. on the external circular support surface; then put the spark plug with the solid washer into the stamping equipment, use the splitting die installed in the stamping equipment to split the inner ring of the solid washer placed on the outer circular support surface of the spark plug shell, and then Under the cutting effect of the mold, the surface of the inner hole of the gasket that is cut by the mold will deform, so that it will fall between the inner hole and the relief groove, forming a lock to prevent the gasket...

Embodiment 3

[0053] The basic principle of embodiment three is the same as that of embodiment one, but the structure is different, as attached Figure 5 and 6 As shown, it is a method of locking and forming the sealing gasket of a spark plug. The sealing gasket is a solid gasket 201. The inner ring of the solid gasket 201 is penetrated from the ignition end of the spark plug, and passed through the thread to the relief groove, and the solid gasket is tightly attached to the The outer support surface of the spark plug housing; then put the spark plug with the solid washer into the stamping equipment, and use the splitting die installed in the stamping equipment to split the inner ring of the solid washer placed on the outer support surface of the spark plug housing , under the cutting action of the splitting die, the surface of the inner hole of the gasket cut by the die will undergo material deformation, so that it will fall between the inner hole and the relief groove, forming a lock to p...

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PUM

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Abstract

The invention discloses a locking and forming method for a sparking plug sealing washer, and the sealing washer. The sealing washer is a solid washer; the inner ring of the solid washer penetrates from the igniting end of the sparking plug, and then passes through screw threads to a tool withdrawn groove; the solid washer is tightly attached to the outer circular supporting surface of the sparking plug shell; next, the sparking plug with the solid washer is put into stamping equipment; the locking and forming method is characterized in that the inner ring of the solid washer which is placed on the outer circular supporting surface of the sparking plug shell is split and cut through a splitting-cutting die in the stamping equipment; the surface which is split and cut by the die on the inner hole of the washer is subjected to material deformation under the splitting and cutting effect of the die so as to be tilted from the inner hole to the tool withdrawn groove to form a locking opening, so that the falling off of the washer from the sparking plug is prevented.

Description

technical field [0001] The invention relates to a manufacturing method and product of spark plug parts, in particular to a method for locking and forming a spark plug sealing ring and the sealing ring, which are mainly used to clamp the spark plug sealing ring on the spark plug to prevent the sealing ring from falling out; The technical field of manufacturing spark plug parts. Background technique: [0002] Spark plugs are generally screw-mounted on the top of the cylinder block. Between the metal shell of the spark plug and the cylinder block, in order to prevent the high temperature and high pressure gas in the cylinder from leaking out, a flat seat spark plug will be installed with a gasket; After the spark plug is ignited, the temperature of the ignited mixture is extremely high after burning, so the sealing gasket can only be metal instead of ordinary rubber sealing gasket. Now there are generally two types of spark plug gaskets, one is a laminated gasket, and the othe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T13/08H01T21/02F16J15/06
CPCF16J15/06H01T13/08H01T21/02
Inventor 张建军杨辉睦
Owner ZHUZHOU TORCH SPARK PLUG CO LTD