CN115780905A - Guide cooling device and method for circular saw blade - Google Patents

Abstract

The invention discloses a guide cooling device for a circular saw blade, wherein a protective cover linked with the circular saw blade is sleeved on the outer side of the circular saw blade of a circular saw machine, the guide cooling device comprises guide cooling components which are arranged on the inner side of the protective cover and symmetrically distributed on the two sides of the circular saw blade, each guide cooling component comprises a guide block, at least one nozzle and a water pipe communicated with the nozzle, one side of each guide block, which is close to the circular saw blade, is provided with a vibration reduction groove for mounting the nozzle, a vibration reduction space for controlling the transverse vibration of the circular saw blade is formed between the two vibration reduction grooves, fluid sprayed out from the nozzles enters the vibration reduction space and impacts the circular saw blade to form a fluid pressure film, the fluid flows from a large gap to a small gap of the vibration reduction space, and the generated fluid pressure film forms a fluid dynamic pressure effect to reduce the transverse vibration amplitude of the circular saw blade, so that the two sides of the circular saw blade are stressed evenly. The invention also discloses a guide cooling method for the circular saw blade, which is applied to the guide cooling device for the circular saw blade.

Description

Guide cooling device and method for circular saw blade

Technical Field

The invention belongs to the technical field of saw blade processing equipment, and particularly relates to a guide cooling device and a guide cooling method for a circular saw blade.

Background

Along with the proposal of resource saving strategy and precision manufacturing requirement, the improvement of the workpiece utilization rate and the surface precision facing the processing industry is another difficult problem in the progress of the manufacturing industry leading to saving type and green type industries. The cooling device of the traditional circular saw machine adopts a single-pipe nozzle cooling mode, and a large amount of heat generated by the circular saw blade in a high-speed rotating state is difficult to take away. When the circular saw blade is cooled, the single-pipe nozzle impacts the circular saw blade in a single direction, so that the stress on the two sides of the circular saw blade is unbalanced; the fluid flow sprayed out by the nozzle is large, the impact force is small, the cutting scraps which are sawed cannot be taken away in time, the deformation, the vibration and other adverse effects of the circular saw blade are easily caused, and the problems of large saw kerf, short service life, low yield, low workpiece processing efficiency and the like of the circular saw blade are further caused.

Disclosure of Invention

In view of the above disadvantages, the present invention provides a guiding and cooling device and method for a circular saw blade, which solves the problems of high surface heat generation of the circular saw blade and unbalanced stress of the circular saw blade when the circular saw blade is cooled, on the basis of ensuring the normal sawing operation of the circular saw blade. The guide cooling assemblies are arranged on the two sides of the circular saw blade, and the guide cooling assemblies spray fluid to the surface of the circular saw blade, so that a large amount of heat generated by the circular saw blade in a high-speed rotating state can be taken away; the stress on the two sides of the circular saw blade is balanced, the cutting scraps generated by sawing are taken away in time, the saw gap of the circular saw blade to a workpiece is reduced, the service life of the circular saw blade is prolonged, and the yield and the processing efficiency of the workpiece are improved.

The invention is realized by the following technical scheme:

the utility model provides a protection casing is in order to protect circular saw blade and operation workman that direction cooling device for circular saw blade, circular saw machine's circular saw blade outside cover is equipped with and links with the circular saw blade. The guide cooling device comprises guide cooling assemblies which are arranged on the inner side of the protective cover and symmetrically distributed on two sides of the circular saw blade, each guide cooling assembly comprises a guide block, at least one nozzle and a water pipe communicated with the nozzle, the nozzles are small nozzles with small flow and high pressure, the water pipes are used for providing liquid and jet power for the nozzles, the impact force of the nozzles on the circular saw blade is improved, and further the sprayed fluid can take away the cut chips cut by the saw in time; the plurality of nozzles simultaneously eject fluid toward the circular saw blade to remove a large amount of heat generated from the circular saw blade in a high-speed rotation state. The side of the guide block close to the circular saw blade is provided with a vibration reduction groove provided with a nozzle, a vibration reduction space for controlling the transverse vibration of the circular saw blade is formed between the two vibration reduction grooves, fluid sprayed out of the nozzle enters the vibration reduction space and impacts the circular saw blade to form a fluid pressure film, the fluid flows from a large gap to a small gap of the vibration reduction space, and the generated fluid pressure film forms a fluid dynamic pressure effect to reduce the transverse vibration amplitude of the circular saw blade. The stress on the two sides of the circular saw blade is balanced, so that the sawing seams of the circular saw blade on a workpiece are reduced, the service life of the circular saw blade is prolonged, and the yield and the processing efficiency of the workpiece are improved.

Furthermore, the vibration reduction groove is a stepped groove, and the correspondingly formed vibration reduction space is a stepped vibration reduction space. The adoption of the stepped groove is beneficial to realizing the vibration reduction effect on the circular saw blade.

Furthermore, the vibration reduction groove is a wedge-shaped groove, and the correspondingly formed vibration reduction space is a wedge-shaped vibration reduction space. The wedge-shaped groove is adopted to help realize the vibration damping effect on the circular saw blade.

Furthermore, the guide cooling device is fixedly connected with the protective cover through an adjustable bolt, and the adjustable bolt can adjust the transverse distance between the guide cooling assembly and the circular saw blade.

Further, the spray nozzle sprays fluid to the circular saw blade surface and forms the injection face, and the injection face is located inside the circular saw blade side surface, guarantees that the fluid can be used for cooling the circular saw blade, prevents that the fluid of circular saw blade both sides from appearing colliding and causing the waste.

Furthermore, the surface of each vibration reduction groove is provided with a hydrophilic layer positioned in the vibration reduction space. The fluid adhesive force on the surface of the vibration reduction groove is increased to reduce the flow velocity of the fluid attached to the surface of the vibration reduction groove, so that the shearing action of the fluid between the circular saw blade and the vibration reduction groove is increased, and the vibration reduction action of the fluid on the circular saw blade is improved.

Further, the inner diameter of the injection port of each nozzle is increased in order in the direction away from the rotation axis of the circular saw blade to maintain the temperature of the surface of the circular saw blade uniform.

Further, the guide cooling device also comprises a pressure controller for controlling the two water pipes, and the pressure controller can adjust the pressure of liquid in the water pipes. The nozzle comprises a shell and an adjustable spray head arranged at the top of the shell, and the adjustable spray head can adjust the shape of a water column sprayed by the nozzle. The guide cooling device also comprises a vibration detection device for detecting the transverse vibration amplitude of the circular saw blade, and the vibration detection device is in signal connection with the pressure controller so that the pressure controller can adjust the pressure of the water pipe according to the vibration condition of the circular saw blade.

Furthermore, each guide block is provided with 8 groups of nozzles pointing to the circular saw blade, and the nozzles on each guide block are divided into two rows in parallel.

The invention also provides a guide cooling method for the circular saw blade, which is applied to the guide cooling device and comprises the following steps:

s1, starting a circular saw machine to enable a circular saw blade to cut a workpiece, and synchronously opening a water pipe to enable a nozzle to spray fluid to the circular saw blade;

s2, the fluid flows downwards under the action of gravity, the flow speed is smaller than the linear velocity of the circular saw blade at the position where the fluid is abutted to the circular saw blade along the downward direction, the fluid between the circular saw blade and the vibration reduction groove is subjected to shearing action, and meanwhile the fluid flows to a small gap from a large gap of the vibration reduction space to generate a fluid pressure film and form a fluid dynamic pressure effect so as to reduce the transverse vibration amplitude of the circular saw blade;

and S3, closing the circular sawing machine and closing the water pipe at the same time to complete the sawing operation.

The invention has the following beneficial effects:

1. the plurality of nozzles are used for spraying the circular saw blade, so that a large amount of heat generated by the circular saw blade in a high-speed rotating state and cutting chips generated by sawing can be taken away.

2. The nozzles are symmetrically arranged on the two sides of the circular saw blade, so that the stress on the two sides of the circular saw blade is balanced, the saw cut of the circular saw blade to a workpiece is reduced, the service life of the circular saw blade is prolonged, and the yield and the processing efficiency of the workpiece are improved.

Drawings

FIG. 1 is a schematic illustration of an exemplary embodiment of an installation position of a guide cooling device for a circular saw blade according to the present invention;

FIG. 2 is a schematic connection diagram illustrating an exemplary embodiment of a guided cooling apparatus for a circular saw blade according to the present invention;

FIG. 3 is a front view of an exemplary embodiment of a guided cooling arrangement for a circular saw blade according to the present invention;

FIG. 4 is a side partial cross-sectional view of an exemplary embodiment of a guided cooling apparatus for a circular saw blade of the present invention;

FIG. 5 is a cross-sectional view illustrating an exemplary embodiment of a guided cooling apparatus for a circular saw blade according to the present invention;

FIG. 6 is a schematic view illustrating the structure of an exemplary embodiment of a guide cooling device for a circular saw blade according to the present invention;

FIG. 7 is a schematic illustration of the installation position of an exemplary embodiment of a nozzle for a guide cooling device for a circular saw blade according to the present invention;

FIG. 8 is a schematic diagram illustrating the structure of an exemplary embodiment of a nozzle in accordance with the present invention;

FIG. 9 is a schematic diagram illustrating the use of an exemplary embodiment of the stepped slot of the present invention;

FIG. 10 is a schematic diagram illustrating the use of an exemplary embodiment of a wedge-shaped groove in the present invention.

Reference numerals:

1. circular sawing machine, 2, circular saw blade, 3, protection casing, 4, direction cooling module, 41, guide block, 42, nozzle, 421, casing, 422, adjustable shower nozzle, 43, water pipe, 44, damping groove, 441, ladder-shaped groove, 442, wedge-shaped groove, 443, hydrophilic layer, 45, damping space, 451, ladder-shaped damping space, 452, wedge-shaped damping space, 46, fluid, 5, adjustable bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are referred to a normal use state of the product, i.e., a traveling direction of the product, and should not be considered as limiting.

In addition, the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention include not only a positional change but also a movement in which a state changes without a relative change in position such as rotation or rolling.

Finally, it is noted that when an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 to 10, in a guide cooling device for a circular saw blade, a guard 3 interlocked with the circular saw blade 2 is provided outside the circular saw blade 2 of a circular saw machine 1 to protect the circular saw blade 2 and an operator. The guide cooling device comprises guide cooling assemblies 4 which are arranged on the inner side of the protective cover 3 and symmetrically distributed on two sides of the circular saw blade 2, the guide cooling assemblies 4 respectively comprise a guide block 41, at least one nozzle 42 and a water pipe 43 communicated with the nozzle 42, the nozzle 42 adopts small-sized nozzles 42 with small flow and high pressure, the water pipe 43 is adopted to provide liquid and jet power for the nozzle 42, the impact force of the nozzle 42 on the circular saw blade 2 is improved, and then the jetted fluid timely takes away the cut chips after sawing; the plurality of nozzles 42 simultaneously spray the fluid 46 toward the circular saw blade 2 to remove a large amount of heat generated by the circular saw blade 2 in a high speed rotation state. The guide block 41 is provided with a damping groove 44 for mounting the nozzle 42 on one side close to the circular saw blade 2, a damping space 45 for controlling the transverse vibration of the circular saw blade 2 is formed between the two damping grooves 44, the fluid 46 sprayed out from the nozzle 42 enters the damping space 45 and impacts the circular saw blade 2 to form a fluid pressure film, the fluid 46 flows from a large gap of the damping space 45 to a small gap, and the generated fluid pressure film forms a fluid dynamic pressure effect to reduce the transverse vibration amplitude of the circular saw blade 2. Make 2 both sides of circular saw blade atress balanced, and then reduce the saw cut of circular saw blade 2 to the work piece, improve 2 life-spans of circular saw blade, improve work piece lumber recovery and machining efficiency.

In one embodiment, the circular saw machine 1 is turned on so that the circular saw blade 2 cuts the workpiece, and the high pressure water pump is synchronously turned on to supply water to the nozzles 42 through the water pipe 43. The water pipe 43 on the left side of the circular saw blade 2 supplies water to the nozzle 42 on the left side of the circular saw blade 2; the water pipe 43 on the right side of the circular saw blade 2 supplies water for the nozzle 42 on the right side of the circular saw blade 2, the water pressure of the water pipes 43 on the two sides of the circular saw blade 2 is the same, the plurality of nozzles 42 on the two sides of the circular saw blade 2 are synchronously opened to cool the circular saw blade 2 rotating at a high speed, the cooling efficiency is improved, meanwhile, the nozzles 42 in symmetrical distribution are compared with the nozzles 42 in one side to cool the circular saw blade 2, the nozzles 42 in symmetrical distribution are favorable for maintaining the stability of the circular saw blade 2, the vibration amplitude of the circular saw blade 2 on the transverse direction is weakened, and the processing quality of the circular saw blade 2 to a workpiece is improved.

Wherein, adjustable bolt 5 can adjust the relative circular saw blade 2 of direction cooling module 4 position on horizontal, and then adjusts the distance of nozzle 42 apart from circular saw blade 2, makes nozzle 42 can cool off high-speed rotatory circular saw blade 2 by the at utmost.

In an embodiment, the outer side of the circular saw blade 2 of the circular saw machine 1 is provided with a protective cover 3 linked with the circular saw blade 2, and the protective cover 3 can move along with the circular saw blade 2 to protect the saw blade and an operator. The guide cooling unit 4 is installed inside the guard cover 3, and when the guide cooling unit 4 performs a water spray cooling operation on the circular saw blade 2, the fluid 46 collides with the circular saw blade 2 to be splashed, and the guard cover 3 can prevent the splashed fluid 46 from falling on a worker, and at the same time, control the splashing range of the fluid 46, and maintain the working environment of the circular saw machine 1.

It should be noted that the guide cooling device in fig. 1 is substantially physically large, and in fig. 2-5, a relatively small circular saw blade 2 is illustrated for clarity of the relationship of the guide cooling device to the circular saw blade 2.

Preferably, the vibration damping groove 44 is a stepped groove 441, and the correspondingly formed vibration damping space 45 is a stepped vibration damping space 451. The stepped groove 441 is employed to contribute to the vibration damping action of the circular saw blade 2.

In one embodiment, the guide blocks 41 are fixed to both sides of the circular saw blade 2, and when the circular saw blade 2 is rotated at a high speed, the liquid is introduced through the water pipe 43 of the guide cooling unit 4 and finally sprayed through the spray nozzles 42 to form a pressure film of the fluid 46. As shown in fig. 9, after the liquid is sprayed through the nozzles 42 on both sides of the circular saw blade 2, the liquid impacts the outside of the circular saw blade 2 rotating at a high speed, and the fluid 46 is subjected to the stepped groove 441, so that the circular saw blade 2 is easily cooled rapidly during the machining process. In addition, since the water pipe 43 is used to supply water to the nozzle 42, the fluid 46 sprayed from the nozzle 42 has a large impact force, easily removes sawdust generated during the sawing process of the circular saw blade 2 and reduces adhesive wear of the saw teeth. In the present invention, the liquid in the water pipe 43 may be water, a coolant, a mixed liquid having a cooling function, or the like.

Preferably, the damping groove 44 is a wedge-shaped groove 442, and the correspondingly formed damping space 45 is a wedge-shaped damping space 452. The use of the wedge-shaped groove 442 contributes to achieving a damping effect for the circular saw blade 2.

As shown in fig. 9 to 10, the present invention includes two different damping grooves 44, a stepped groove 441 formed with a stepped damping space 451 and a wedge groove 442 formed with a wedge damping space 452. The vibration reduction groove 44 is formed on the side of the guide block 41 of the guide cooling unit 4 close to the circular saw blade 2, and the guide cooling unit is installed at the edge of the circular saw blade 2, so that when the circular saw blade 2 is rotated at a high speed, the downward flow velocity of the fluid 46 in the guide block 41 after flowing out along the nozzle 42 is much smaller than the downward flow velocity at a high rotation speed of the circular saw blade 2, and thus the flow action of the fluid 46 in the vertical direction is negligible, i.e., the fluid 46 does not slide on the surface of the guide block 41, i.e., the fluid 46 adhered to the surface of the guide block 41 is kept stationary, while the fluid 46 adhered to the surface of the circular saw blade 2 is moved at a high speed, which causes the fluid 46 film in the gap between the circular saw blade 2 and the surface of the vibration reduction groove 44 to be subjected to a continuous shear flow action, and since the circular saw blade 2 is moved in the vibration reduction space 45 at a high rotation speed, the fluid 46 is moved from the large gap of the vibration reduction space 45 to a small gap, and the dynamic pressure effect of the fluid pressure is formed in the vibration reduction space 45 between the two guide blocks 41, thereby reducing the amplitude of the circular saw blade 2 in the transverse direction.

In the analysis for controlling the lateral vibration of the circular saw blade 2, in which the guide blocks 41 are disposed on both sides of the circular saw blade 2 and the fluid 46 is injected into the damping space 45, the three-dimensional reynolds equation of the pressure distribution of the fluid 46 in the wedge-shaped damping space 452 or the stepped damping space 451 of the guide blocks 41 can be expressed as follows according to the fluid dynamic pressure principle:

in the formula: p1, p 2-the pressure (MPa) of the fluid film in the vibration reduction spaces at the two sides of the circular saw blade;

h1 H 2-the thickness (m) of the fluid film at any position in the vibration damping spaces on both sides of the circular saw blade;

η — the dynamic viscosity of the fluid (Pa · s);

t-time(s);

u is the linear velocity (m/s) of the circular saw blade at the vibration damping space.

The first term on the right side of the equal sign represents a dynamic pressure effect generated in the vibration reduction space 45 by the fluid 46 being driven by the rotation of the circular saw blade 2, and the second term represents a squeezing effect generated by the vibration of the circular saw blade 2 in the vibration reduction space 45. It can be seen that the pressure of the fluid 46 generated by the nozzle 42 of the present invention acts to guide the high speed circular saw blade 2 and to dampen the amplitude of the vibrations.

Further, the present application is also within the scope of the present application in consideration of the number and placement positions of the nozzles 42 from the viewpoint of suppressing the vibration of the circular saw blade 2.

It should be noted that, in practical tests, the present invention has better damping effect on the circular saw blade 2 by using the stepped groove 441 than by using the wedge-shaped groove 442. However, the circular saw blade 2 has the cemented carbide circular saw blade 2, the diamond circular saw blade 2, and the like, and the wedge groove 442 is required for some special circular saw blades 2, and therefore, it is within the scope of the present application that the vibration damping groove 44 is the stepped groove 441 and the wedge groove 442.

Preferably, the guide cooling device is fixedly connected with the protective cover 3 through an adjustable bolt, and the adjustable bolt can adjust the transverse distance between the guide cooling assembly 4 and the circular saw blade 2.

Preferably, the spray nozzles 42 spray the fluid 46 to the surface of the circular saw blade 2 to form a spray surface, and the spray surface is located inside the side surface of the circular saw blade 2, so that the fluid 46 can be used for cooling the circular saw blade 2, and the fluid 46 on the two sides of the circular saw blade 2 is prevented from colliding to cause water resource waste.

Preferably, the surface of each vibration damping groove 44 is provided with a hydrophilic layer 443 located in the vibration damping space 45. The adhesion force of the fluid 46 to the surface of the damping groove 44 is increased to reduce the flow rate of the fluid 46 adhering to the surface of the damping groove 44, thereby increasing the shearing action of the fluid 46 between the circular saw blade 2 and the damping groove 44 and improving the damping action of the fluid 46 on the circular saw blade 2.

In one embodiment, the surface of each damping slot 44 is provided with a hydrophilic layer 443 positioned in the damping space 45, and after the fluid 46 is sprayed from the nozzle 42, a portion of the fluid 46 near the damping slot 44 adheres to the surface of the damping slot 44 to reduce the downward movement speed of the fluid 46 under the action of gravity. The hydrophilic layer 443 is disposed on the surface of the vibration damping groove 44 to further increase the adhesion between the fluid 46 and the surface of the vibration damping groove 44, and reduce the downward moving speed of the fluid 46 on the surface of the vibration damping groove 44, thereby increasing the shear flow effect on the fluid 46 film in the gap between the circular saw blade 2 and the surface of the vibration damping groove 44, and improving the vibration damping effect on the circular saw blade 2 rotating at high speed. It should be noted that the adhesion expressed above is not meant to be blocking, but means affinity of the fluid 46 with the surface of the damping groove 44, and the falling speed of the fluid 46 along the surface of the damping groove 44 is slower than that of the fluid 46 subjected to only gravity.

Preferably, the inner diameter of the injection port of each nozzle 42 is sequentially increased in a direction away from the rotation axis of the circular saw blade 2 to maintain the temperature of the surface of the circular saw blade 2 uniform.

In one embodiment, when the circular saw blade 2 is rotated at a high speed, the linear velocity of the circular saw blade 2 becomes high in a direction away from the rotation axis of the circular saw blade 2, and the amount of heat generated when the circular saw blade 2 cuts a workpiece becomes high. Therefore, the portion of the circular saw blade 2 farther from the rotational axis thereof needs to be cooled. The inner diameter of the injection port of the nozzle 42 is increased in the direction away from the rotation axis of the circular saw blade 2 in order to contribute to cooling down the circular saw blade 2 and to prevent uneven heating of the surface of the circular saw blade 2.

Preferably, the pilot cooling device further comprises a pressure controller controlling the two water pipes 43, the pressure controller being able to regulate the pressure of the liquid in the water pipes 43. The nozzle 42 includes a housing 421 and an adjustable spray head 422 mounted to the top of the housing 421, the adjustable spray head 422 being capable of adjusting the shape of the water column sprayed by the nozzle. The guiding cooling device further comprises a vibration detecting device for detecting the transverse vibration amplitude of the circular saw blade 2, and the vibration detecting device is in signal connection with the pressure controller, so that the pressure controller can adjust the pressure of the water pipe 43 according to the vibration condition of the circular saw blade 2.

In an embodiment, the pressure controller can adjust the pressure in the water pipe 43, so as to adjust the flow rate of the fluid 46 sprayed from the nozzle 42, and by changing the pressure in the water pipe 43, the cooling and vibration damping effects of different pressures on the circular saw blade 2 can be tested, so that the optimal pressure value can be found out, the transverse vibration amplitude of the circular saw blade 2 can be reduced, the stability of the circular saw blade 2 during cutting can be improved, and the saw gap can be reduced to improve the processing quality of workpieces. The adjustable nozzle 422 can adjust the shape of the water column sprayed from the nozzle 42, such as adjusting the nozzle 42 to spray the water column-like fluid 46, the radial fluid 46, and the mist-like fluid 46. The shape of the water column sprayed out from the nozzle 42 is adjusted by the adjustable spray head 422, the shape of the water column with better cooling and vibration damping effects on the circular saw blade 2 is tested, and the stability of the circular saw blade 2 during rotation is further improved.

In an embodiment, the vibration detection device is a detection device in the prior art, and is mainly used for detecting the transverse vibration amplitude when the circular saw blade 2 runs, and the internal structure of the vibration detection device is not described in detail. Vibration detection device and pressure controller signal connection, through the pressure of pressure controller adjusting water pipe 43, through vibration detection device reading circular saw blade 2 lateral vibration range when rotating at a high speed, help pressure controller with the pressure regulation to suitable state in the water pipe 43 to improve the stability of circular saw blade 2, reduce the lateral vibration range of circular saw blade 2.

In one embodiment, the guided cooling device further comprises a cooling chamber, and the water pipe 43 penetrates through the cooling chamber so that the cooling chamber cools the liquid in the water pipe 43 and helps to remove heat from the surface of the circular saw blade 2. The water pipe 43 in the cooling chamber adopts a spiral pipe distribution mode, so that the cooling efficiency of the cooling chamber on the liquid in the water pipe 43 is increased. The outlet of the cooling chamber is provided with a temperature detection controller which is in signal connection with the pressure controller so as to adjust the water pressure in the water pipe 43. The water pipe 43 penetrates the cooling chamber, and the cooling chamber can cool the liquid in the water pipe 43, thereby reducing the temperature of the fluid 46 sprayed from the nozzle 42 and improving the cooling capacity of the guide cooling device for the circular saw blade 2. The water pipes 43 in the cooling chamber adopt a spiral pipe distribution mode, the pipe distribution mode can enable liquid in the water pipes 43 to be uniformly cooled, and the regional requirement of the cooling chamber is met by adjusting the pipe spacing of the water pipes 43. Because of the spiral pipe arrangement mode, the bending stress on the water pipe 43 pipeline is small, and the flow of the liquid in the water pipe 43 is basically not influenced. It should be noted that the pressure of the liquid in the water pipe 43 is only slightly greater than the pressure in a common water pipe, and compared with a high-pressure water pipe for fire fighting and the like, the pressure of the water pipe 43 in the present invention is relatively small, so that the water pipe 43 in the present invention has a higher water pressure bearing capacity than a common water pipe, and does not reach the pressure of a high-pressure water gun used for special equipment. The water pipe 43 in the invention is adopted to improve the flow velocity of the fluid 46 sprayed by the micro spray head, so that the cooling efficiency of the circular saw blade 2 is improved, and the circular saw blade 2 cannot be damaged due to the over-high flow velocity of the fluid 46.

Preferably, each guide block 41 is provided with 8 sets of nozzles 42 directed toward the circular saw blade 2, and the nozzles 42 of each guide block 41 are arranged in two rows.

In an embodiment, after a plurality of times of cutting experiments of the circular saw machine 1, when 8 nozzles 42 are installed on each guide block 41, and the nozzles 42 are distributed on the guide block 41 in two rows, each row has 4 nozzles 42, the guiding cooling device has better cooling and vibration damping effects on the circular saw blade 2, and the cost performance is higher. It should be noted that each guide block 41 is provided with 8 nozzles 42, the total number of the nozzles 42 on the guide cooling device is 16, and the plane where the circular saw blade 2 is located is taken as a symmetry plane, and the nozzles 42 on both sides of the circular saw blade 2 are symmetrical to each other, so as to ensure that the both sides of the circular saw blade 2 are uniformly stressed.

The invention also provides a guide cooling method for the circular saw blade, which is applied to the guide cooling device and comprises the following steps:

s1, starting the circular saw machine 1 to enable the circular saw blade 2 to cut a workpiece, and synchronously starting the water pipe 43 to enable the nozzle 42 to spray fluid 46 to the circular saw blade 2; preferably, the fluid 46 ejected by the nozzle 42 is a cooling fluid.

S2, the fluid 46 flows downwards under the action of gravity, the flow speed is smaller than the linear speed of the circular saw blade 2 at the position where the fluid 46 is abutted with the circular saw blade 2 along the downward direction, the fluid 46 between the circular saw blade 2 and the vibration reduction groove 44 is subjected to shearing action, and meanwhile the fluid 46 flows from the large gap to the small gap of the vibration reduction space 45, a fluid 46 pressure film is generated, and a fluid dynamic pressure effect is formed to reduce the transverse vibration amplitude of the circular saw blade 2; the preferred vibration damping space 45 employs a stepped vibration damping space 451.

And S3, closing the circular sawing machine 1 and closing the water pipe 43 at the same time to finish the sawing operation.

When the above-described guide cooling device for a circular saw blade is employed, the guide cooling device can take away a large amount of heat generated when the circular saw blade 2 is rotated at a high speed; the stress on the two sides of the circular saw blade 2 is balanced, the cutting scraps generated by sawing are taken away in time, the saw kerf of the circular saw blade 2 to a workpiece is reduced, the service life of the circular saw blade 2 is prolonged, and the yield and the processing efficiency of the workpiece are improved.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. The utility model provides a direction cooling device for circular saw blade, circular saw blade outside cover of circular sawing machine be equipped with the protection casing of circular saw blade linkage, a serial communication port, direction cooling device including install extremely protection casing inboard and symmetric distribution in the direction cooling module of circular saw blade both sides, direction cooling module all includes guide block, at least one nozzle and intercommunication the water pipe of nozzle, the guide block is close to the installation has been seted up to one side of circular saw blade the damping groove of nozzle, two form the control between the damping groove circular saw blade transverse vibration's damping space, nozzle spun fluid gets into damping space and striking the circular saw blade forms fluid pressure membrane, the fluid is followed the large gap department in damping space flows to small gap department, and the fluid pressure membrane that produces forms fluid dynamic pressure effect in order to reduce the transverse vibration range of circular saw blade.

2. A guide cooling device for a circular saw blade as claimed in claim 1, wherein said vibration damping groove is a stepped groove, and said vibration damping space is correspondingly formed as a stepped vibration damping space.

3. A guide cooling device for a circular saw blade as claimed in claim 1, wherein said damping groove is a wedge-shaped groove and said correspondingly formed damping space is a wedge-shaped damping space.

4. A guide cooling arrangement for a circular saw blade as claimed in claim 1, characterized in that the guide cooling arrangement is fixedly connected to the protective hood by means of an adjustable screw, which can adjust the distance between the guide cooling assembly and the circular saw blade.

5. The guide cooling device for a circular saw blade as claimed in claim 1, wherein said nozzle sprays said fluid onto said circular saw blade surface to form a spray face, said spray face being located inside said circular saw blade side surface.

6. A guide cooling device for a circular saw blade as claimed in claim 1, wherein the surface of each damping groove is provided with a hydrophilic layer in the damping space.

7. The guide cooling device for a circular saw blade as claimed in claim 1, wherein an inner diameter of the injection port of each of said nozzles is increased in order in a direction away from the rotational axis of said circular saw blade.

8. A directional cooling device for a circular saw blade as claimed in claim 1, further comprising a pressure controller for controlling two of said water pipes, said nozzle comprising a housing and an adjustable nozzle mounted to the top of said housing, said adjustable nozzle being capable of adjusting the shape of the water column ejected from said nozzle, said directional cooling device further comprising vibration detecting means for detecting the amplitude of the lateral vibration of said circular saw blade, said vibration detecting means being in signal connection with said pressure controller.

9. A guide cooling device for a circular saw blade as claimed in claim 1, wherein each of said guide blocks is provided with 8 sets of said nozzles directed toward said circular saw blade, said nozzles of each of said guide blocks being arranged in two juxtaposed rows.

10. A guide cooling method for a circular saw blade, applied to the guide cooling apparatus as recited in any one of claims 1 to 9, wherein the guide cooling method comprises:

s1, starting the circular saw machine to enable the circular saw blade to cut a workpiece, and synchronously starting the water pipe to enable the nozzle to spray fluid to the circular saw blade;

s2, the fluid flows downwards under the action of gravity, the flow speed of the fluid is smaller than the linear speed of the circular saw blade at the position where the fluid is abutted to the circular saw blade along the downward direction, the fluid between the circular saw blade and the vibration reduction groove is subjected to shearing action, and meanwhile the fluid flows from a large gap to a small gap of the vibration reduction space, a fluid pressure film is generated, and a fluid dynamic pressure effect is formed to reduce the transverse vibration amplitude of the circular saw blade;

and S3, closing the circular sawing machine and closing the water pipe at the same time to finish the sawing operation.

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