0397 Track laying
In addition to the obvious increase in efficiency, Xu Yi was also pleased to find that when the band saw was running, there was basically no dust. Most of the sawdust is brought to the bottom of the saw table by the sawtooth during the sawing process, and the sawdust flow outlet on the back of the machine falls to the ground behind the saw table, and a small amount of wood chips are also connected to the small hole of the dust collection pipe interface on the saw table and is sucked away by the dust collection pipe, and there is no such dusty phenomenon as imagined.
Then I put on another saw blade and took a small piece of oak wood, and it was no different except that the sawing speed was not as fast as sawing pine. After all, this hard wood is much harder than pine, and even when Xu Yi pushes too fast, not only the sound from the motor becomes muffled, but even the wood at the saw edge will smoke due to the high-speed friction of the saw blade.
Xu Yi was very satisfied with the results of the test, and then got busy with enthusiasm.
The band saw installation is now in place, and now only the sports car is installed, which is much easier to install than the band saw.
Xu Yi This is a second-hand band saw, so the sports car tracks have been connected by the original owner with channel steel and welded into a zigzag frame.
Having said that, it is not so easy to install this sports car well, after all, if it is not installed well in the sports car or the track, it will also cause various problems for wood cutting. For example, if there is a certain angle between the track and the band saw, it will deflect the saw blade, and even cause the saw teeth on one side to wear out too quickly. For example, if the height or track installation distance is not suitable, it may also lead to problems such as the base of the sports car hitting the band saw table, or because of the relationship between entering the car, the band saw blade is cut to the stuck wooden stake, and the hook used to fix the wood is used.
Therefore, it also requires a lot of patience and meticulousness to install this sports car and track - fortunately, Xu Yi does not lack such qualities.
If these things are replaced by an impatient person. I'm afraid I won't even think about doing it. It's even a little bit of a brain-dead middle school. It's more likely that the logs will be sent straight out to the processing plant for processing. Xu Yi is different, he has to find a way to solve the problem himself, so that he can really keep his secret.
Also in order to avoid the problem of pressure guidance, Xu Yi spread the remaining boards along the ground on the side of the band saw near the saw blade, and then took a ruler and pasted it on the board to inspect it piece by piece.
After confirming that the boards themselves were not deformed, and that there was no error in the thickness of the zĂ i between them, Xu Yi took the work to carry out the necessary repairs before the installation of several sections of tracks.
The tracks are generally in good condition and do not need to be overhauled. But these things were installed in the past. The underside of these rails and the steel sheets welded to the rails used to fix the anchor bolts are glued with a lot of cement mortar, and even rust in some places due to dampness and other reasons. Even a few pieces of steel were a little distorted and deformed because of welding problems or brutal operations during disassembly.
Xu Yi first moved the rails so that they were all buckled to the ground with the bottom side up, and then moved the anvil to pad under the twisted steel sheets, carefully hitting the steel sheets with a hammer to avoid smashing the welds with excessive force. Xu Yi doesn't have an electric welding machine that can weld this thing, and if it is about to break, it may lead him to install the rail not so reliably.
Fortunately, he was patient and careful enough, and nothing unusual happened until all the steel pieces were smashed flat. The underside of these rails is polished with a grinder, and then all the debris on them is wiped off with a rag, and a swarthy light is reflected on the cleaned tracks.
Of course. Just cleaning the stains could not ensure that they fit tightly with the ground below, so Xu Yi took them over and put them on the ground of these rails to check the flatness.
Make sure that several rails are perfectly straight. After there were no obvious flaws on it, Xu Yi turned his attention to the channels and the places where the steel sheets were connected to the rails. I took the ruler and put it vertically on the two rails, checked the relationship between these things and the bottom of the rail, and then carefully polished and smoothed the places that were cushioned to the ruler with a grinding wheel, until the ruler stuck to the bottom of the rail and slid without any obstacles, and then the rail was carefully turned over.
The wheels on both sides of the lower side of the band saw sports car are not the same, and the side near the band saw machine has to support the weight of the components and wood, so the bottom wheels of the sports car in this direction are flat wheels to provide better support for the sports car. However, the side away from the band saw machine is mainly responsible for controlling the running direction of the sports car to prevent the sports car from sliding off the track, so it uses sheaves that are low in the middle and high on both sides like pulleys. Because of this, the shape of the two rails is also different, the rail under the flat wheel is a flat rail, but the bottom of the sheave is a trapezoidal steel rail.
Xu Yi checked that there were no major defects on the surface of the rail except for some rust, so he took a piece of sandpaper and wrapped it on a wooden board and pressed it flat on the rail, polishing it smooth. After polishing the top of the two rails, Xu Yi turned his attention to the left and right sides of the rail used to erect the sheaves, and their flatness also has a crucial impact on the direction of the band saw, and they must be cleaned out.
After cleaning all the sections of rails, Xu Yi moved them to the edge of the band saw and carefully placed them on the board in the right direction. Xu Yi shook the rails on the board with his hand, and after making sure that the rails did not have any obvious shaking and warping, he was ready to officially start connecting a few rails.
The connection of these tracks is very simple, just connect them with a connecting plate.
Xu Yi went to the bag and brought the connecting plates with bolts on both sides, loosened the nuts on them, passed the screws through the screw holes at the head of the rail, and then tightened the bolts with another splint and nut.
The rails fit perfectly with the slabs underneath, so the height is not an issue, but more importantly, whether they are perfectly straight in the left and right directions.
Xu Yi first twisted a few bolts on the connecting plate a few times by hand, and then dealt with the other rail, and then took the ruler with one hand and put it on the joint of the two rails, and moved a rail with the other hand. Align the left and right sides of the two rails of the two sections of rails perfectly. The gap between the two sections of steel rails is narrowed as much as possible. It wasn't until there was only a hair-thin gap between the rails on both sides that the bolts were completely tightened.
Originally, this bolt also has matching pins, after installation, these pins have to be inserted into the hole above the bolt to prevent the vibration guide nut from loosening. However, Xu Yi just put away these pins and did not install them.
These rails are only used temporarily, plus to determine the position and height difference between the rails and the sawing machine, and when all the wood is sawed, these have to be disassembled, otherwise Xu Yi will not have the ability to move such two long rails. If I carry it in its entirety. It may also be bent because of the bump, so it is better to disassemble and reassemble it more conveniently.
This band saw machine was originally equipped with a set of electric sports cars, and Xu Yi was also tempted to take it down, but as soon as he inquired, the price of that sports car was more expensive than this whole set of things, so he gave up. This sports car and band saw are not a set, so in addition to the basic installation principles can be applied, Xu Yi also has to detect how the sports car and track should be installed.
Xu Yi cleaned up and down the sports car, especially after there were no debris and rust stains on several sets of wheels, and used a tape measure to measure the distance between the two wheels at the bottom of the sports car. Make sure this is the same distance as the two tracks below and will work.
After the measurement. Xu Yi took the oil pot and also added lubricating oil to some bearings and transmission shafts at the bottom of the sports car. Ready to start the formal tuning assembly.
Xu Yi loaded the sports car on the farthest side from the sawing machine, let the sports car cling to the rear baffle post, and then took a ruler to measure the distance between the lower base and the front baffle of the track. Xu Yi was very satisfied with the results obtained, and he could run about eight and a half meters.
This distance is the maximum distance that a sports car can travel on the track, which also means that if the installation is reasonable, then the longest wood that Xu Yi can break with this sports car is about this length.
Of course, Xu Yi has already installed the position of the band saw, and all the wood has been loaded, so there is no need to adjust it now. However, he only needs to be able to process the wood he needs, which is just a reference for the next official installation to determine the proper location of the band saw and sports car installation.
Before the final test, Xu Yi first checked the position of the next few stuck wooden piles, and then adjusted the fine-tuning device so that the plane in front of them was on the same plane, after all, the trunks of these trees in the space were completely straight, and there was no curved wood at all.
After Xu Yi confirmed that the straight line formed by the front edge of the wooden stakes was completely parallel to the track on the ground, he put the level up and took it to the top of the band saw blade and several stuck wooden stakes for inspection.
After making sure that they were all completely perpendicular to the ground, Xu Yi breathed a sigh of relief and prepared to carry out the installation inspection of the next one. After all, if the stakes are not vertical enough, you have to find a way to keep them horizontal, so as not to make the upper and lower sides of the sawn wood inconsistent in thickness.
Xu Yi took the plumb and hung it on the front edge of the sports car ram, put the nylon rope on the tip of the plumb and almost stuck to the ground before stopping, and when the plumb was still, Xu Yi made a mark there with a nail, and then went to the next ram to repeat the process.
After measuring the leading edge of several rams, Xu Yi picked a ram with the farthest distance from the track, and measured the distance between this point and the center point of a nearby track, as long as this plus a little bit of error of the workpiece system and the vibration guide of the saw blade, it can be regarded as the distance between the track and the saw blade, and now as long as the distance between the saw blade and the auxiliary line determined before, he can get the appropriate position of the band saw track installation......!
PS: I'm sorry, I don't have so much time to write today, and I have to find more information. In other words, it is estimated that except for people who are bored writing books like me, no one will download a copy of "Timber Repair and Sawing Technology" to read through it in order to write a chapter on how to repair saws, right? There is still a little tail left, but I am too lazy to write, I will rest first, and strive to write a little more in the evening, and strive to pass this bridge tomorrow.