FOSHAN L&L PRECISION MACHINERY MANUFACTURING CO,LTD 

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PRODUCTS

It is widely used in wood processing, aluminum plant, steel plant and furniture factory. Due to the market by the majority of new and old customers praise.

CNC double side grinding machine

CNC double side grinding machine

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L&L-02 Full automatic before and after the angle grinding machine

L&L-02 Full automatic before and after the angle grinding machine

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L&L-06 CNC carbide band saw blade / box Angle gear grinding machine in front of the saw blade

L&L-06 CNC carbide band saw blade / box Angle gear grinding machine in front of the saw blade

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L&L-04 Fully digital with the hard alloy saw frame saw double side grinding machine grinding head

L&L-04 Fully digital with the hard alloy saw frame saw double side grinding machine grinding head

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L&L-07 CNC carbide band saw blade/frame saw blade (after) the Angle gear grinding machine

L&L-07 CNC carbide band saw blade/frame saw blade (after) the Angle gear grinding machine

This machine is mainly abrasive objects: alloy band saw blade, double metal band saw blade, saw blade width of box,27mm-150mm can be used. The CNC machine tool can be grinded such as 3/4,4/6 variable tooth and so on,are equipped with automatic feeding cutting fluid cooling water, can effectively prevent the alloy tooth tip to generate high temperature drop tooth phenomenon in the grinding process, also has anti rust and cleaning at the end of the function, improve the tooth tip alloy front sharpness, prolong the service life of the grinding wheel, can keep the tooth tip of the same size, so that the timber cutting always no scratches, the number of material processing, machinery processing, steel processing, alloy saw blaze grinding and so on an indispensable tool equipment. This machine operation is simple and convenient, suitable for large, medium, small machinery factory, wood processing, steel sawing processing factory, alloy band saw blade, double metal band saw blade, saw tooth shaped grinding indispensable equipment. To use to reach the old alloy saw blade, reduce the waste of resources. The man-machine interface operation of human nature, for operator to understand, more convenient to use. Precision imported cross rail control up and down, to make the blade accuracy is more accurate. Hydraulic saw blade tenson automatic system, ensure the blade is always in the best state of tension, prolong the service life of the saw blade.
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L&L-05 With the hard alloy saw frame saw before and after the angle grinding machine

L&L-05 With the hard alloy saw frame saw before and after the angle grinding machine

Grinding object: alloy saw blade, double metal band saw blade, saw blade width of box, 27mm-150mm can use. Grinding various teethShape, such as 3-4, 4/6, variable tooth tooth tooth and tooth and so on, this machine has simple and convenient operation, suitable for large, medium, small machinery factory,Wood processing, steel sawing equipment grinding indispensable cutting processing factory, alloy saw blade, double metal band saw blade, saw tooth shaped.
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L&L-05 With the hard alloy saw frame saw before and after the angle grinding machine

L&L-05 With the hard alloy saw frame saw before and after the angle grinding machine

Grinding object: alloy saw blade, double metal band saw blade, saw blade width of box, 27mm-150mm can use. Grinding various teethShape, such as 3-4, 4/6, variable tooth tooth tooth and tooth and so on, this machine has simple and convenient operation, suitable for large, medium, small machinery factory,Wood processing, steel sawing equipment grinding indispensable cutting processing factory, alloy saw blade, double metal band saw blade, saw tooth shaped.
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Servo swing angle full CNC circular saw blade front and rear angle grinding machine (500-1500)

Servo swing angle full CNC circular saw blade front and rear angle grinding machine (500-1500)

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A set of design, production, sales in one professional woodworking grinding equipment manufacturers

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All imported components of servo system ensure stable operation

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High quality linear guideway to improve service life

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Adhere to the service concept of "your satisfaction is profit and profit is the biggest gain"

ABOUT US

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Foshan lierli Precision Machinery Manufacturing Co., Ltd. is a professional design, manufacture and sales of alloy saw blade, alloy saw blade grinding equipment and supporting equipment.
Main products:
CNC circular saw blade front and rear angle grinding machine
CNC double grinding head side angle grinding machine for circular saw blade
CNC circular saw blade polishing machine
Automatic circular saw blade front and rear angle grinding machine
Automatic carbide band saw blade / frame saw blade front angle gear grinding machine
CNC carbide band saw blade / frame saw blade double grinding head side angle gear grinding machine
CNC carbide band saw blade / frame saw blade reverse (back) angle grinding machine and other equipment.
The machine products manufactured by the company are widely used in wood processing plant, aluminum profile factory, steel production plant and furniture factory and other enterprises. Machine precision and efficient characteristics of the market recognition
 

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New type of fully enclosed isolation cover

Is a set of design, manufacturing, sales of alloy cutting tools grinding special equipment manufacturers, mainly to R & D production of woodworking machinery and equipment.

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20% increase in base stability

Stable product performance, reliable parts quality, a variety of models to meet different needs, worthy of your reliance on strategic partners;

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All imported components of servo system

Lierli has a number of high-quality employees, constantly introduce advanced technology at home and abroad, and keep pace with international standards. Products are constantly updated;

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High quality linear guideway to improve service life

The machines sold have been widely used in wood processing, aluminum factory, steel plant and furniture factory and other processing industries;

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After sales service extended for 1 year, 2 years without worry

Adhere to the service concept of "your satisfaction is benefit and profit is the biggest harvest"; abide by the working principle of "training seriation, service institutionalization".

NEWS CENTER

When do cemented carbide saw blades need to be sharpened, precautions and methods of sharpening

When do cemented carbide saw blades need to be sharpened, precautions and methods of sharpening

1. In the following situations, the carbide saw blade needs to be sharpened in time a) When the cutting quality no longer meets the requirements. b) When the energy consumption of the sawing machine increases significantly. c) When the edge of the cutting material has obvious burst. d) It is very important to grind the saw blade in time when the edge wear of the sawtooth alloy reaches 0.2mm, because the saw blade with a passivated edge is likely to cause the jitter of the saw blade due to the increase in resistance when working, and increase the load of the motor. Both the saw blade and the machine can cause damage. In passivation 1. When there are the following conditions, the carbide saw blade needs to be sharpened in time a) When the cutting quality no longer meets the requirements. b) When the energy consumption of the sawing machine increases significantly. c) When the edge of the cutting material has obvious burst. d) It is very important to grind the saw blade in time when the edge wear of the sawtooth alloy reaches 0.2mm, because the saw blade with a passivated edge is likely to cause the jitter of the saw blade due to the increase in resistance when working, and increase the load of the motor. Both the saw blade and the machine can cause damage. Passivation
202009-06

How to correctly choose the series parameters of carbide circular saw blades

How to choose the series parameters of carbide circular saw blades? To 　　 Carbide saw blade is composed of saw board and carbide saw teeth. To 　　 Hard alloy saw teeth are basically imported at present, our company uses Luxembourg DERMETBL hard alloy. To The alloy particles used in high-quality saw blades are thicker and larger, because such alloy saw teeth can be sharpened repeatedly and have a long service life. The welding quality of cemented carbide is also very important. The weld seam should be thin and well-proportioned so that the teeth can withstand Greater cutting force. To 　　 The quality of the saw blade is very important. Because the saw blade adjusts its rotation, it has to transmit cutting force and maintain working stability. A good saw blade not only has static geometric dimensions and accuracy, but more importantly, its dynamic characteristics. To When the saw blade is continuously cut, the heat generated by the alloy saw tooth cutting will be transmitted to the saw board, which will increase the temperature of the saw board. In this case, the high-quality saw board can maintain the precision of the statement, while the poor-quality saw The saw blade will warp and affect the precision of sawing. To 　　The dynamic stability of the saw board is particularly important for the precise condition of several saw blades used in groups. To 　　 How can the quality of longitudinal cutting be guaranteed when a set of unstable saw blades are used for multi-blade saw equipment? To 　　The saw board and the cutter head are an integral part of the high-quality saw blade. To 　　 Carbide saw blade manufacturing generally does not make so many specifications of saw blades. According to the optimization rules and according to the current wood processing enterprises' equipment, materials and other specific factors, it is composed of the current common carbide saw blade specifications. This is not only conducive to our choice of carbide saw blades, but also conducive to the large-scale production of alloy saw blade manufacturers. To 　　 Under normal circumstances, the right and left teeth should be selected for sawing particleboard and medium-density boards, flat ladder teeth (flat teeth, trapezoidal teeth combination) should be selected for sawing veneer panels and fireproof boards. The outer diameter of the saw blade is mostly Ф300-350mm according to different circular saw models, and the thickness of the saw blade is related to the diameter. Ф250-300mm thickness 3.2mm, Ф350mm above 3.5mm. To Due to the large cutting rate of the computer cutting saw, the diameter and thickness of the carbide saw blade used are relatively large, the diameter is about 350-450mm, and the thickness is between 4.0-4.8mm. Most of them use flat stepped teeth to reduce edge chipping. , Saw marks. To 　　Alloy saw blades for sawing real wood usually use a left and right tooth shape combined with cymbals. Because this combination has a large rake angle, it can sharply cut the wood fiber structure and make the cut smooth. For slotting that needs to keep the bottom of the slot flat, use a flat tooth profile or a combination of left and right flat teeth.
202009-06

Selection of Grinding Wheels for Hard Alloy Woodworking Tools

Reasonable selection of sharpening wheels is one of the key factors to ensure the quality of tool sharpening. Hard alloy saw blades with welded teeth should be sharpened with diamond grinding wheels. The performance indicators of diamond grinding wheels include abrasive grain size, binder type, grinding wheel hardness, grinding wheel structure, grinding wheel shape, grinding wheel size, diamond concentration, diamond layer thickness and material layer Width etc. The abrasive of the diamond (JR) grinding wheel is a synthetic diamond synthesized under high pressure and high temperature with graphite as raw material under the action of a catalyst. Its main component is carbon (C), which is colorless and transparent, light yellow, yellow-green and black. Wait for several colors. Synthetic diamond abrasives have extremely high hardness and are currently commonly used abrasives for sharpening carbide tools. Compared with silicon carbide, the sharpening productivity is 5 times higher, the roughness is 1 to 3 higher, and the tool durability is 1 to 3 times higher. Diamond grinding wheels are expensive and have poor toughness, especially strong affinity for iron group elements, and poor thermal stability. They will graphitize when the temperature reaches 700-800℃ in air medium, so they cannot be used to sharpen steel tools. Diamond grinding wheel is expensive, so only the working part of the grinding wheel is composed of diamond and bond abrasive layer. The thickness of the material layer is usually only 1.5mm, 2mm, 3mm and 5mm. The particle size standard of diamond grinding wheels is the same as that of ordinary grinding wheels. Generally, the particle size is 80～120# when sharpening carbide teeth, and the hardness of the grinding wheel is intermediate. The concentration of diamond grinding wheel refers to the mass of diamond contained per unit volume in the material layer. The standard is 0.879g (4.39 carats)/cm3, and the concentration is 100%. The concentration of 50% or 100% is generally used when sharpening carbide serrations. Table 1 shows the shape and code of commonly used diamond grinding wheels. There are four types of bonding agents for diamond grinding wheels: bronze (Q), resin (S), ceramic (A) and electroplating (D). The resin bond diamond wheel is generally used for dry grinding, and the bronze bond diamond wheel for wet grinding with coolant. The marking sequence of diamond grinding wheel is: abrasive-particle size-hardness-bond-concentration-shape-size. The size injection method is: outer diameter×thickness×aperture×diamond material ring width×material layer thickness×angle. For example, the abrasive is a diamond grinding wheel with synthetic diamond, particle size 100#, medium hardness, resin bond, concentration 50%, disc-shaped grinding wheel, outer diameter 80mm, thickness 13mm, aperture 20mm, material ring width 3mm, material layer thickness 3mm The mark is: JR100#Z50D180×13×20×3×3. Before using the grinding wheel, check whether the grinding wheel has no gaps, concentricity, vibration, etc. and whether the surface is clean. When using a diamond grinding wheel to sharpen a carbide saw blade, it should not be in contact with the saw blade body of tool steel material, otherwise the grinding wheel will be blocked. The saw blade body of tool steel material should be ground with corundum or silicon carbide abrasive wheels. Because of the high hardness of cemented carbide, greater grinding pressure is required during sharpening, and because of its low thermal conductivity, it is not allowed to generate excessive heat. Therefore, it is required to have good cooling and heat dissipation conditions during sharpening, which is usually required. Coolant to reduce the occurrence of grinding cracks. When using a diamond grinding wheel to sharpen cemented carbide saw teeth, the total grinding amount should be controlled below 0.1mm. If the grinding amount is too large, the diamond consumption of the grinding wheel is too high and the cost is too high. For sharpening YG6 and YG8 cemented carbide serrations, when the coolant supply is within the range of 3~4L/min, the grinding wheel with bronze bond, particle size 100~120# and concentration 100% can be used.
202009-06

[Saw blade/saw blade and sawing technology] Let you know how to choose a multi-blade saw

As the name implies, multi-blade saw blades are saw blades that are installed and used together, generally alloy saw blades are the main ones. Multi-blade saw blades are generally used for wood processing, such as: fir, poplar, pine, eucalyptus, imported wood and miscellaneous wood, etc., widely used in round wood processing, square wood processing, edge cleaning machines, furniture making and other industries , Simple multi-blade saws can generally be installed with 4-6 blades, and the upper and lower axis multi-blade saws can be installed with 8 saw blades, or even more than 40 blades, which greatly improves the work efficiency of workers. Multi-blade saw blades are generally equipped with a certain number of cooling holes and thermal expansion grooves, or multiple scrapers are designed to achieve better heat dissipation effect and make chip removal more smooth. Outer diameter of multi-blade saw blade It mainly depends on the installation limit of the machine and the thickness of the cutting material. The small diameter is 110MM, and the large diameter can reach 450 or larger. According to the requirements of the machine, some saw blades need to be installed up and down at the same time, or installed at the same time, so as not to increase The diameter of the saw blade can achieve a greater cutting thickness while reducing the cost of the saw blade. Number of teeth of multi-blade saw blade In order to reduce the resistance of the machine, increase the durability of the saw blade, and reduce the noise, multi-blade saw blades are generally designed with fewer teeth. The outer diameter of 110-180 is about 12-30 teeth. About 30-40 teeth, there are more powerful machines, or manufacturers that emphasize the cutting effect, a small amount of about 50 teeth is designed. Multi-blade saw blade thickness The thickness of the saw blade theoretically we hope that the thinner the saw blade is, the better, the sawing is actually a consumption. The material of the alloy saw blade base and the process of manufacturing the saw blade determine the thickness of the saw blade. If the thickness is too thin, the saw blade is easy to shake when working, which affects the cutting effect. The thickness of the outer diameter of 110-150MM can be 1.2-1.4MM, and the thickness of the saw blade with the outer diameter of 205-230MM is about 1.6-1.8MM, which is only suitable for cutting soft wood with low density. When choosing the thickness of the saw blade, the stability of the saw blade and the material to be cut should be considered. At present, in order to reduce consumption, some companies have begun to produce single-sided convex plate or double-sided convex plate multi-blade saw blades, that is, the two sides of the middle hole are thicker, and the inner side of the alloy is thinner, and then the teeth are welded to ensure the cutting thickness At the same time, the effect of saving materials is achieved. Aperture of multi-blade saw blade Of course, the aperture of the multi-blade saw blade depends on the requirements of the machine first, because multiple blades are installed together. In order to ensure stability, the aperture is generally designed to be larger than that of the conventional saw blade. Most of the apertures are increased while additional special methods are installed. The blue plate and the keyway are designed to facilitate the addition of coolant for cooling and increase stability. Generally, the hole diameter of the 110-200MM outer diameter saw blade is between 35-40, the 230-300MM outer diameter saw blade is between 40-70, and the saw blade above 300MM is generally less than 50MM. Tooth shape of multi-blade saw blade The tooth profile of multi-blade saw blades is generally based on alternating left and right teeth, and a few small-diameter saw blades are also designed with flat teeth. Multi-blade saw blade coating After the welding and grinding of multi-blade saw blades are completed, coating treatment is generally carried out, which is said to extend the service life. In fact, it is mainly for the appearance of the saw blade, especially the multi-blade saw blade with a scraper. The current welding level, the scraper There are very obvious welding traces, so coating treatment is carried out to maintain the appearance. Multi-blade saw blade with scraper Multi-blade saw blades are welded with cemented carbide on the saw blade base, collectively called scrapers. Scrapers are generally divided into inner scrapers, outer scrapers and tooth scrapers. The inner scrapers are generally used for hardwood cutting, the outer scrapers are generally used for wet wood cutting, and the tooth scrapers are mostly used for trimming or edge banding saw blades, but they cannot be generalized. Take the Kobayashi multi-blade saw blade as an example. Generally, the number of scrapers under 10 inches is 2-4. In order to maximize the effect of the scrapers, most of them are designed as external scrapers. The number of scrapers for 12
202009-06

What is a table saw? What are the main structural characteristics of the table saw?

The table saw is one of the most dangerous tools on the job site! ! The table saw is one of the most dangerous tools on the job site! ! The table saw is one of the most dangerous tools on the job site! ! Say the important thing three times! ! ! What is a table saw? A table saw or other cutting machine includes a conveying member substantially close to a flanged edge on the bottom surface of a worktable and a reversible extension support device. The supporting device includes a supporting member that can extend toward and away from the workbench in a horizontal direction. The dust turning skirt plate extends into the dust receiving cavity from the lower surface of the workbench. The anti-reverse spacer is a sealed-end rivet, which is installed at the middle position of the anti-reverse pawl to keep the reverse-reverse pawl and the split plate in a substantially parallel relationship. The hardened part of the throat plate can keep the throat plate from being damaged by the serrated edge of the anti-reversal pawl, and prevent sticking when the saw blade falls. What are the main structural characteristics of the table saw? The main structural feature of the table saw is the use of two saw blades, the main saw blade and the scoring saw blade. When cutting, the scoring saw is used for cutting in advance, and the bottom surface of the processed plate is first sawed to scribe the depth of the bottom surface. The depth is 1-2mm and the width is 0.1-0.2mm thicker than the main saw blade. Groove to ensure that the edge of the saw edge will not tear when the main saw blade is cutting, so as to obtain a good sawing quality. Table saw is also an indispensable tool for furniture production. According to the size of the table, it can be divided into two types: Portable Table Saw and Cabinet Table Saw. Because home woodworkers pursue small size and light weight, they generally choose portable table saws. The following are also explained with the goal of portable table saws. Table saw purchase points guide size Few people pay attention to the size of the guide rail. I am the first one to talk about the guide rail size, because some portable table saw manufacturers use small-size T-rails. When purchasing, you must try to "'Avoid buying a table saw with such a small size T-rail"', because it is difficult to find accessories of this size in the market, such as feather boards, tenon openers, push handles, etc. Can't buy. That is to say, once you buy a table saw with this small size T-rail, you cannot buy any accessories. Standard size rail: 3/4 inch wide, 3/8 inch deep, such as DeWalt DW745 Small size T-rail: 5/8 inches wide and 1/4 inches high, such as Makita MLT100 Saw blade size If the size of the saw blade required by the table saw is different from what is commonly used, it may be difficult to match the saw blade. The specifications of the saw blade used by the table saw are generally: Diameter: 10 inches Arbor: 5/8 inch Saw road width Kerf: 0.058 inches (1.5mm) ~ .118 inches (3mm) DADO The portable table saw does not need DADO at all for the following reasons: The table saw is small in size, and it is difficult to slot large wood with the table saw It is troublesome to replace the DADO saw blade, and it is more troublesome to adjust the thickness of DADO, but it is not meaningful for mass production. Small size wood can be slotted multiple times with ordinary saw blades, and large size wood can be slotted with electric milling Backing system The most basic and important requirement of the backing system is to keep parallel with the saw blade. If the parallelism cannot be guaranteed, the loss of accuracy is still a small matter, and what is worse may be that the feed cannot be pushed, burned or even the wood bounces. Among the portable table saws, ``The best backer is the DEWALT table saw'', because it uses a special gear system. The front and back of the ruler must move in parallel under the drive of the gear.

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FOSHAN L&L PRECISION MACHINERY MANUFACTURING CO,LTD 


Add: No.3, road 3, block a, Qixing T Industry District, Luocun Town, Nanhai District, Foshan City
Tel: +(86)13531320218
Tel: +(86)0757-85850175
Fax: +(86)0757-85850176
QQ: 1638093745
E-mail: lerl@fslierli.com / 1638093745@qq.com
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