Full-automatic chain saw sharpener and chain grinding method thereof

Abstract

The invention discloses a full-automatic chain saw sharpener. The full-automatic chain saw sharpener comprises a shell, a grinding device, an action device and a feeding device, wherein the feeding device comprises a chain suspending platform, a pushing device and a driving device, and the grinding device, the action device and the feeding device are supported in the shell. The full-automatic chain saw sharpener is characterized in that the pushing device comprises a pushing block seat, a hinged shaft, a pushing block and a torsional spring, the torsional spring comprises a body which sleeves the hinged shaft, a first torsion arm and a second torsion arm are arranged at tail ends of two sides of the body respectively, the first torsion arm is connected with the pushing block seat, the second torsion arm is connected with the pushing block, the pushing block is forced by the second torsion arm, and the pushing block comprises a pushing surface and a loosening surface. The full-automatic chain saw sharpener has the advantages that the structure is simple, the design is reasonable, pressure on a saw chain is large, the saw chain can be prevented from warping upwards, the pushing block is not prone to slide out from teeth cutting pieces, the pushing block and cutting edges of the teeth cutting pieces are not prone to be stuck during grinding of limiting teeth, the feeding accuracy is high, the grinding wheel radial run-out is small, the grinding accuracy is high, dust-proof effects are good, and the grinding device can be accurately controlled.

Description

technical field [0001] The invention relates to a fully automatic chain grinding machine, which is used for grinding saw chains and belongs to the field of grinding tools. Background technique [0002] The saw chain is an important working part on the chain saw, and it is a tool used to cut objects, especially for logging. After the saw chain is used for a long time, the cutting teeth on the cutting chain will become blunt, so it is necessary to grind the cutting teeth so that it can continue to work. In the prior art, manual or semi-automatic grinding is usually used. Manual grinding is to use manual tools to grind the cutting blades of the saw chain, while semi-automatic grinding is to manually grind the cutting blades of the saw chain through the grinding wheel. However, the above two methods all have problems such as low grinding precision, low work efficiency, and waste of manpower. [0003] Now there are also chain grinders to grind the saw chain. After using the c...

AI Technical Summary

Problems solved by technology

[0004] 1. During the feeding process of the chain feeding device, the push block presses on the limit tooth of the saw chain, and the pressure of the push block on the limit tooth is only its own gravity, and the push block itself is relatively light, so the push block has a positive impact on the saw chain. The pressure of the chain is small, so the saw chain may be lifted up during the chain feeding process, thus affecting the grinding accuracy;

[0005] 2. The push block in the prior art is provided with a push surface for pushing the cutting chain of the saw chain. , in the process of pushing the chain, it is easy to make the pushing surface slip out of the cutting gear of the cutting chain piece, resulting in the failure of the chain feeding;

[0006] 3. There is a front side and a rear side on the cutting gear, and the side close to the limit tooth is the front side, and the other side is the rear side. When the cutting gear is worn to a certain extent, the cutting gear may be lower than the limit tooth. , so it cannot be cut normally. At this time, it is necessary to grind the limit tooth to reduce its height to be lower than the height of the cutting tooth. When grinding the limit tooth, reverse the saw chain. At this time, push the block Push the cutting piece in reverse, and when the push block is withdrawing, the bottom of the push block will withdraw from the blade on the front side of the cutting piece, because the bottom of the push block in the prior art is a planar structure, and the blade is inclined relative to the pushing surface If it is set, the blade is relatively sharp, so the bottom of the push block is easy to get stuck at a certain point with the blade of the tooth cutter, causing the push block to fail to exit normally;

[0007] 4. In the grinding device in the prior art, the motor is first connected with the pinion, the large gear meshes with the small gear, the rotating shaft is fixed on the large gear, and the grinding wheel is fixedly connected with the rotating shaft. During the grinding process, since the grinding wheel is fixed through the rotating shaft , and there will be radial runout on the rotating shaft, which will affect the grinding accuracy;

[0008] 5. The existing grinding device has poor dust-proof effect. When the grinding wheel is grinding, metal powder and dust generated by the wear of the grinding wheel itself will be produced. If it is not controlled, it will affect the working environment inside the machine and reduce the use of the machine. life;

[0009] 6. The control of the grinding device by the existing chain grinding machine is unreasonable, and it is impossible to guarantee the consistency of the grinding device for grinding the saw chain cutter, which makes the depth of the cutter edge inconsistent

The feeding device of this kind of automatic chain grinding machine has an unreasonable structure. During the chain feeding process, the saw chain is easy to warp during the chain feeding process, which affects the accuracy of the chain feeding

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