阅读说明：本技术 一种具有碎屑清洁功能的环保型数控机床 (environment-friendly digit control machine tool with clean function of piece ) 是由 葛军 于 2019-10-29 设计创作，主要内容包括：本发明涉及一种具有碎屑清洁功能的环保型数控机床,包括底座、龙门架和打磨装置,还包括清洁机构和净化机构,所述清洁机构包括导轨、移动块、清洁块、驱动组件、清洁组件和两个排污槽,所述清洁组件包括气囊、输气管、吹气管、两个滑杆、两个移动板、两个推杆和两个弹簧,所述净化机构包括净化箱、抽气泵、两个滤芯、两个抽气管和两个吸气槽,所述驱动组件包括电机和丝杆,该具有碎屑清洁功能的环保型数控机床中,通过清洁机构可以对底座内部积累的碎屑进行清洁,提高了数控机床的实用性,通过净化机构可以净化数控机床产生的灰尘和有害气体,提高了数控机床的环保性能。(The invention relates to environment-friendly numerical control machine tools with a chip cleaning function, which comprise a base, a dragon frame, a polishing device, a cleaning mechanism and a purification mechanism, wherein the cleaning mechanism comprises a guide rail, a moving block, a cleaning block, a driving assembly, a cleaning assembly and two sewage discharge grooves, the cleaning assembly comprises an air bag, a gas pipe, a gas blowing pipe, two sliding rods, two moving plates, two push rods and two springs, the purification mechanism comprises a purification box, a gas suction pump, two filter cores, two gas suction pipes and two gas suction grooves, the driving assembly comprises a motor and a lead screw, and in the environment-friendly numerical control machine tool with the chip cleaning function, chips accumulated in the base can be cleaned through the cleaning mechanism, so that the practicability of the numerical control machine tool is improved, dust and harmful gas generated by the numerical control machine tool can be purified through the purification mechanism, and the environment-friendly.)

1, kind of environment-friendly digit control machine tool that has clean function of piece, including base (7), dragon frame (2) and grinding device (4), the top at base (7) is erect in dragon frame (2), grinding device (4) are installed on dragon frame (2), the inside of base (7) is equipped with the cavity, the top of base (7) is equipped with the workstation, the workstation communicates with the inside of base (7), characterized by, still include clean mechanism and purification mechanism, clean mechanism sets up the inside of base (7), purification mechanism sets up on dragon frame (2);

the cleaning mechanism comprises a guide rail (9), a moving block (21), a cleaning block (10), a driving assembly, a cleaning assembly and two sewage discharge grooves (22), the guide rail (9) is parallel to the workbench, the guide rail (9) is fixed inside the base (7), two mounting holes are formed in the moving block (21), the guide rail (9) penetrates through the moving block (21), the moving block (21) is connected with the guide rail (9) in a sliding mode, the driving assembly is arranged on the side of the guide rail (9), the driving assembly is connected with the moving block (21), a cavity is formed in the moving block (21), the cleaning assembly is arranged inside the moving block (21), the cleaning block (10) is arranged on the side, far away from the dragon frame (2), of the moving block (21) and is abutted and connected with the inner wall of the bottom of the base (7) in a sliding mode, the width of the cleaning block (10) is larger than that of the moving block (21), the two sewage discharge grooves (22) are respectively arranged on two sides of the bottom of the base (7), and the sewage discharge grooves (22) are matched with the cleaning block (10);

the cleaning assembly comprises an air bag (14), an air conveying pipe (18), an air blowing pipe (19), two sliding rods (16), two moving plates (17), two push rods (12) and two springs (15), wherein the sliding rods (16) are parallel to guide rails (9), two ends of each sliding rod (16) are fixedly connected with the inner wall of each moving block (21), the moving plates (17) are perpendicular to the sliding rods (16), two connecting holes are formed in the moving plates (17), the two guide rails (9) penetrate through the moving plates (17), the moving plates (17) are slidably connected with the guide rails (9), the two springs (15) are respectively sleeved on the two sliding rods (16), two ends of each spring (15) are respectively and fixedly connected with the two moving plates (17), the springs (15) are in a compressed state, the air bag (14) is arranged between the two moving plates (17), the air blowing pipe (19) is parallel to the guide rails (9), the air blowing pipe (19) is fixed to the end , close to the cleaning block (10), the middle of each air blowing pipe (19) is communicated with the two moving plates (12) of the air blowing pipe (19) through holes (18), the two moving plates (17), the air blowing pipe (19), the two moving plates (19) are respectively communicated with the moving plates (35), the moving plates (3617), the moving plates (21), the two moving plates (12), the two moving plates (21) are respectively, the moving plates (12), the two moving plates (12) and the air blowing pipe (19), the moving plates (3617), the air blowing pipe (19) are respectively, the air blowing pipe (19) and the two moving plates (3617), the two;

purification mechanism includes purifying box (3), aspiration pump (20), two filter cores (8), two aspiration channels (5) and two suction grooves (1), and two suction grooves (1) set up respectively in the both sides of dragon frame (2), and the side that is close to each other of two suction grooves (1) all is equipped with the notch, purifying box (3) set up the top at dragon frame (2), the both ends of purifying box (3) all communicate with two suction grooves (1) respectively through aspiration tube (5), and two filter cores (8) set up the inside at the both ends of purifying box (3) respectively, aspiration pump (20) set up the side that is close to grinding device (4) in purifying box (3), the air inlet and the inside intercommunication of purifying box (3) of aspiration pump (20), aspiration pump (20) set up between two filter cores (8), the gas outlet and grinding device (4) of aspiration pump (20) are just to setting up.

2. The environment-friendly numerically-controlled machine tool with debris cleaning function according to claim 1, wherein the base (7) is provided with a control box, the control box is internally provided with a PLC, the control box is provided with a display screen and at least two control keys, and the display screen and each control key are electrically connected with the PLC.

3. The environment-friendly numerically-controlled machine tool with the function of cleaning debris according to claim 1, wherein the driving assembly comprises a motor (6) and a lead screw (11), the lead screw (11) is parallel to the guide rail (9), both ends of the lead screw (11) are provided with mounting bearings, both ends of the lead screw (11) are connected with the inner wall of the base (7) through the mounting bearings, the lead screw (11) penetrates through the moving block (21), the lead screw (11) is in threaded connection with the moving block (21), the motor (6) is fixedly connected with the base (7), and the motor (6) is in transmission connection with the lead screw (11).

4. The environment-friendly numerical control machine tool with the debris cleaning function according to claim 1, wherein an anticorrosive coating is coated on the inner wall of the base (7).

5. The environmentally friendly numerically controlled machine tool with a debris cleaning function according to claim 1, wherein the slide bar (16) is coated with grease.

6. The environmentally friendly numerically controlled machine tool with debris cleaning function according to claim 1, wherein rubber pads (13) are disposed on both sides of the moving block (21), and the rubber pads (13) are hermetically connected with the screw rod (11), the push rod (12) and the guide rail (9).

7. The environmentally friendly numerically controlled machine tool with debris cleaning function according to claim 1, wherein the material of the purification box (3) is stainless steel.

8. The environmentally friendly numerically controlled machine tool with debris cleaning function according to claim 3, wherein the motor (6) is a servo motor.

9. The environmentally friendly numerically controlled machine tool with a debris cleaning function according to claim 1, wherein a tip of the moving block (21) is tapered in shape.

10. The environmentally friendly numerically controlled machine tool with a debris cleaning function according to claim 2, wherein the control button is a touch button.

Technical Field

The invention relates to the field of precise numerical control, in particular to an environment-friendly numerical control machine tool with a chip cleaning function.

Background

The numerical control machine tool is a numerical control machine tool which is widely used at present , is mainly used for cutting and processing inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces with any taper angles, complex rotary inner and outer curved surfaces, cylinders, conical threads and the like, and can perform grooving, drilling, reaming, boring and the like.

Digit control machine tool is at the in-process of processing, and the piece of production is along with the coolant liquid flow in the inside guiding gutter of base, and the piece of accumulation in the guiding gutter needs the manual work to clean usually, has reduced the practicality of digit control machine tool, moreover, prior art's digit control machine tool can produce harmful gas and dust at the in-process of production, not only can cause the influence to operating personnel's health, has still reduced the feature of environmental protection of digit control machine tool.

Disclosure of Invention

The invention aims to solve the technical problem of providing environment-friendly numerical control machines with a chip cleaning function in order to overcome the defects of the prior art.

The invention solves the technical problem by adopting the technical scheme that environment-friendly numerical control machine tools with a chip cleaning function comprise a base, a dragon frame and a polishing device, wherein the dragon frame is erected at the top of the base, the polishing device is arranged on the dragon frame, a cavity is arranged inside the base, a workbench is arranged at the top of the base and is communicated with the inside of the base, the environment-friendly numerical control machine tool also comprises a cleaning mechanism and a purifying mechanism, the cleaning mechanism is arranged inside the base, and the purifying mechanism is arranged on the dragon frame;

the cleaning mechanism comprises a guide rail, a moving block, a cleaning block, a driving assembly, a cleaning assembly and two sewage discharging grooves, the guide rail is parallel to the workbench, the guide rail is fixed inside the base, two mounting holes are formed in the moving block, the guide rail penetrates through the moving block, the moving block is slidably connected with the guide rail, the driving assembly is arranged on the side of the guide rail, the driving assembly is connected with the moving block, a cavity is formed in the moving block, the cleaning assembly is arranged inside the moving block, the cleaning block is arranged on the side, far away from the dragon frame, of the moving block, the cleaning block is abutted against and slidably connected with the inner wall of the bottom of the base, the width of the cleaning block is larger than that of the moving block, the two sewage discharging grooves are respectively arranged on two sides of the bottom of the base, and the sewage;

the cleaning assembly comprises an air bag, an air pipe, an air blowing pipe, two sliding rods, two moving plates, two push rods and two springs, the sliding rods are parallel to guide rails, two ends of the sliding rods are fixedly connected with the inner walls of the moving blocks, the moving plates are perpendicular to the sliding rods, two connecting holes are formed in the moving plates, the two guide rails penetrate through the moving plates, the moving plates are slidably connected with the guide rails, the two springs are sleeved on the two sliding rods respectively, two ends of each spring are fixedly connected with the two moving plates respectively, the springs are in a compressed state, the air bag is arranged between the two moving plates, the air blowing pipe is parallel to the guide rails, the air blowing pipe is fixed at the end, close to the cleaning blocks, of the moving blocks, the middle of the air blowing pipe is communicated with the air bag through the air pipe, the calibers of two ends of the air blowing pipe are smaller than the diameter of the middle of the air blowing pipe, the two push rods are parallel to the guide rails, the two push rods are arranged on the sides, far away from each other, the ends of the two push rods are fixedly connected with the two moving blocks, the two sides of the moving;

purification mechanism includes purifying box, aspiration pump, two filter cores, two exhaust tubes and two suction grooves, and two suction grooves set up respectively in the both sides of dragon frame, and the side that is close to each other of two suction grooves all is equipped with the notch, the purifying box sets up the top at dragon frame, the both ends of purifying box all communicate with two suction grooves respectively through the exhaust tube, and two filter cores set up the inside at the both ends of purifying box respectively, the aspiration pump sets up the side that is close to grinding device at the purifying box, the air inlet of aspiration pump and the inside intercommunication of purifying box, the aspiration pump sets up between two filter cores, the gas outlet and the grinding device of aspiration pump are just to setting up.

Preferably, in order to improve the degree of automation of digit control machine tool, be equipped with the control box on the base, the inside of control box is equipped with PLC, be equipped with display screen and two at least control button on the control box, display screen and each control button all are connected with PLC electricity.

Preferably, in order to provide power for the moving block, the driving assembly comprises a motor and a lead screw, the lead screw is parallel to the guide rail, mounting bearings are arranged at two ends of the lead screw, the two ends of the lead screw are connected with the inner wall of the base through the mounting bearings, the lead screw penetrates through the moving block, the lead screw is in threaded connection with the moving block, the motor is fixedly connected with the base, and the motor is in transmission connection with the lead screw.

Preferably, in order to prolong the service life of the base, the inner wall of the base is coated with an anti-corrosion coating.

Preferably, the sliding rod is coated with grease in order to improve the smoothness of movement of the moving plate.

Preferably, in order to clean the screw rod, the push rod and the guide rail, rubber pads are arranged on two sides of the moving block and are in sealing connection with the screw rod, the push rod and the guide rail.

Preferably, the material of the purification box is stainless steel in order to prolong the service life of the purification box.

Preferably, the motor is a servo motor in order to improve the accuracy of controlling the moving speed and distance of the moving block.

Preferably, the top end of the moving mass is tapered to reduce the chance of debris remaining on the top of the moving mass.

Preferably, in order to improve the sensitivity of the control key, the control key is a touch key.

The environment-friendly numerical control machine tool with the debris cleaning function has the advantages that the cleaning mechanism can clean the debris accumulated in the base, so that the practicability of the numerical control machine tool is improved.

Drawings

The invention is further illustrated in the following description with reference to the figures and examples.

FIG. 1 is a schematic view showing the construction of an environmentally friendly numerical control machine tool having a debris cleaning function according to the present invention;

FIG. 2 is a schematic view showing the internal structure of an environmentally friendly numerically controlled machine tool having a debris cleaning function according to the present invention;

FIG. 3 is a schematic structural view of a cleaning mechanism of an eco-friendly numerical control machine tool having a debris cleaning function according to the present invention;

FIG. 4 is a schematic structural view of a cleaning mechanism of an environmentally friendly numerically controlled machine tool having a debris cleaning function according to the present invention;

in the figure, 1, an air suction groove, 2, a dragon rack, 3, a purification box, 4, a polishing device, 5, an air suction pipe, 6, a motor, 7, a base, 8, a filter element, 9, a guide rail, 10, a cleaning block, 11, a screw rod, 12, a push rod, 13, a rubber pad, 14, an air bag, 15, a spring, 16, a slide rod, 17, a moving plate, 18, an air conveying pipe, 19, an air blowing pipe, 20, an air suction pump, 21, a moving block and 22, a sewage disposal groove are arranged.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings that illustrate only the basic structure of the invention and therefore show only the components that are relevant to the invention.

As shown in fig. 1, kinds of environment-friendly numerically-controlled machine tools with a debris cleaning function comprise a base 7, a dragon frame 2 and a grinding device 4, wherein the dragon frame 2 is erected on the top of the base 7, the grinding device 4 is installed on the dragon frame 2, a cavity is arranged inside the base 7, a workbench is arranged on the top of the base 7 and is communicated with the inside of the base 7, and the environment-friendly numerically-controlled machine tools further comprise a cleaning mechanism and a purifying mechanism, the cleaning mechanism is arranged inside the base 7, and the purifying mechanism is arranged on the dragon frame 2;

the cleaning mechanism can clean the debris accumulated in the base 7, so that the practicability of the numerical control machine tool is improved, the purification mechanism can purify dust and harmful gas generated by the numerical control machine tool, and the environmental protection performance of the numerical control machine tool is improved;

as shown in fig. 2-3, the cleaning mechanism includes a guide rail 9, a moving block 21, a cleaning block 10, a driving assembly, a cleaning assembly and two dirt discharging grooves 22, the guide rail 9 is parallel to the workbench, the guide rail 9 is fixed inside the base 7, two mounting holes are formed inside the moving block 21, the guide rail 9 passes through the moving block 21, the moving block 21 is connected with the guide rail 9 in a sliding manner, the driving assembly is arranged on the side of the guide rail 9, the driving assembly is connected with the moving block 21, a cavity is formed inside the moving block 21, the cleaning assembly is arranged inside the moving block 21, the cleaning block 10 is arranged on the side of the moving block 21 far away from the gantry frame 2, the cleaning block 10 abuts against and is connected with the inner wall of the bottom of the base 7 in a sliding manner, the width of the cleaning block 10 is greater than that of the moving block 21, the two dirt discharging grooves 22 are respectively arranged on two sides of the bottom of the base 7;

as shown in fig. 3, the cleaning assembly includes an air bag 14, an air pipe 18, an air blowing pipe 19, two sliding rods 16, two moving plates 17, two push rods 12 and two springs 15, the sliding rods 16 are parallel to the guide rails 9, both ends of the sliding rods 16 are fixedly connected with the inner walls of the moving blocks 21, the moving plates 17 are perpendicular to the sliding rods 16, two connecting holes are formed in the moving plates 17, the two guide rails 9 penetrate through the moving plates 17, the moving plates 17 are slidably connected with the guide rails 9, the two springs 15 are respectively sleeved on the two sliding rods 16, both ends of the springs 15 are respectively fixedly connected with the two moving plates 17, the springs 15 are in a compressed state, the air bag 14 is arranged between the two moving plates 17, the air blowing pipe 19 is parallel to the guide rails 9, the air blowing pipe 19 is fixed on the end, close to the cleaning block 10, of the moving blocks 21, the middle of the air blowing pipe 19 is communicated with the air bag 14 through the air pipe 18, the calibers of both ends of the air blowing pipe 19 are smaller than the diameter of the middle of the air blowing pipe 19, the two push rods 12 are parallel to the guide rails 9, the two push rods 12 are respectively arranged on the sides, the two moving plates 12, the moving plates are respectively far away from each other sides of the two moving plates, the moving plates are connected with the push rods 6312, the moving blocks, the moving plates;

the driving assembly provides power, the moving block 21 is driven to move along the guide rail 9, the cleaning block 10 is driven to move through the moving block 21, chips accumulated at the bottom of the base 7 are discharged from the sewage discharge port 22 through the cleaning block 10, automatic cleaning of the numerical control machine tool is achieved, the practicability of the numerical control machine tool is improved, sewage is discharged through the two sewage discharge ports 22, when the moving block 10 moves towards two sides, the chips can be discharged to the outside of the base 7, the probability that the chips are accumulated inside the base 7 is reduced, the cleaning effect of the numerical control machine tool is improved, when the moving block 21 moves to abut against the inner wall of the side of the base 7, the push rod 12 is pushed through the inner wall of the base 7, the push rod 12 drives the moving block 17 to move along the direction close to the air bag 14, the moving plate 17 extrudes the air bag 14 through the moving plate 17, air inside the air bag 14 is sent to the air blowing pipe 19 through the air blowing pipe 19, the air is blown to the top of the cleaning block 10 through the air blowing pipe 19, the air flow accumulated at the top of the cleaning block 10 is cleaned, the cleaning block 10, the probability that the air flow is reduced when the cleaning pipe 19 is far away from the air flow of the air blowing pipe 357 is reduced, the cleaning pipe 19, the cleaning effect of the air flow of the air blowing pipe 19 is reduced, the cleaning pipe 19, and the cleaning pipe 19, the cleaning pipe;

as shown in fig. 4, the purification mechanism includes a purification box 3, an air suction pump 20, two filter elements 8, two air suction pipes 5 and two air suction grooves 1, the two air suction grooves 1 are respectively arranged at two sides of a dragon frame 2, notches are respectively arranged at sides of the two air suction grooves 1 which are close to each other, the purification box 3 is arranged at the top of the dragon frame 2, two ends of the purification box 3 are respectively communicated with the two air suction grooves 1 through the air suction pipes 5, the two filter elements 8 are respectively arranged inside two ends of the purification box 3, the air suction pump 20 is arranged at side of the purification box 3 which is close to the polishing device 4, an air inlet of the air suction pump 20 is communicated with the inside of the purification box 3, the air suction pump 20 is arranged between the two filter elements 8, and an air outlet of the air suction pump 20 is arranged opposite to the polishing device 4;

provide power through aspiration pump 20, take the inside air of purifying box 3 out, make the inside atmospheric pressure of purifying box 3 reduce, then under the effect of atmospheric pressure, through aspiration tube 5 and the inside of groove 1 with air suction purifying box 3 of breathing in, purify the air through filter core 8, the quantity of harmful gas and dust in the air has been reduced, the environmental protection performance of digit control machine tool has been improved, on grinding device 4 is blown to through the gas with aspiration pump 20 combustion gas simultaneously, the heat dissipation to grinding device 4 has been realized, the stability of grinding device 4 work has been improved.

Preferably, in order to improve the automation degree of the numerical control machine tool, the base 7 is provided with a control box, the interior of the control box is provided with a PLC, the control box is provided with a display screen and at least two control keys, and the display screen and the control keys are electrically connected with the PLC;

the PLC is a programmable logic controller, it adopts kinds of programmable memories, it is used for its internal storage program, it can execute logical operation, sequence control, timing, counting and arithmetic operation and other user-oriented instructions, and utilizes digital or analog input/output to control various types of machines or production processes, its essence is computers specially used for industrial control, its hardware structure is basically the same as microcomputer, is used for processing data and receiving and outputting instruction, and is used for implementing central control, the operator can utilize control key to send control signal to PLC, then utilize PLC to control operation of numerically-controlled machine tool, at the same time can utilize display screen to display working state of numerically-controlled machine tool, and can raise the automation degree of numerically-controlled machine tool.

As shown in fig. 2, the driving assembly includes a motor 6 and a lead screw 11, the lead screw 11 is parallel to the guide rail 9, both ends of the lead screw 11 are provided with mounting bearings, both ends of the lead screw 11 are connected with the inner wall of the base 7 through the mounting bearings, the lead screw 11 passes through a moving block 21, the lead screw 11 is in threaded connection with the moving block 21, the motor 6 is fixedly connected with the base 7, and the motor 6 is in transmission connection with the lead screw 11;

the motor 6 drives the screw rod 11 to rotate, and the moving block 21 is driven by the screw rod 11 to move along the guide rail 9.

Preferably, in order to prolong the service life of the base 7, the inner wall of the base 7 is coated with an anticorrosive coating;

the corrosion speed of the base 7 is slowed down through the anti-corrosion coating, and the service life of the base 7 is prolonged.

Preferably, in order to improve the smoothness of the movement of the moving plate 17, the sliding rod 16 is coated with grease;

the friction force between the moving plate 17 and the slide bar 16 is reduced by the grease, and the smoothness of the movement of the moving plate 17 is improved.

Preferably, in order to clean the screw rod 11, the push rod 12 and the guide rail 9, rubber pads 13 are arranged on two sides of the moving block 21, and the rubber pads 13 are hermetically connected with the screw rod 11, the push rod 12 and the guide rail 9;

in the moving process of the moving block 21, the chips on the screw rod 11, the push rod 12 and the guide rail 9 can be scraped off through the rubber pad 13, so that the screw rod 11, the push rod 12 and the guide rail 9 can be cleaned, meanwhile, under the buffer action of the rubber pad 13, the impact force between the moving block 21 and the base 7 is reduced, and the probability of damage to the moving block 21 is reduced.

Preferably, in order to prolong the service life of the purification box 3, the purification box 3 is made of stainless steel;

because the stainless steel has better corrosion resistance, the corrosion speed of the purifying box 3 is slowed down, and the service life of the purifying box 3 is prolonged.

Preferably, the motor 6 is a servo motor in order to improve the accuracy of controlling the moving speed and distance of the moving block 21.

Preferably, in order to reduce the possibility of debris remaining on the top of the moving block 21, the top end of the moving block 21 is tapered;

when the top end of the moving block 21 is tapered in shape, debris falling onto the moving block 21 can fall along the moving block 21, reducing the chance of debris accumulating on the top of the moving block 21.

Preferably, in order to improve the sensitivity of the control key, the control key is a touch key.

Provide power through drive assembly, drive movable block 21 removes along guide rail 9, then remove through movable block 21 drive cleaning block 10, discharge the piece of accumulation in base 7 bottom from drain 22 through cleaning block 10, then realized the self-cleaning to digit control machine tool, the practicality of digit control machine tool has been improved, provide power through aspiration pump 20, take out the inside air of purifying box 3, make the inside atmospheric pressure of purifying box 3 reduce, then under the effect of atmospheric pressure, through aspiration tube 5 and suction slot 1 with the inside of air suction purifying box 3, purify the air through filter core 8, the quantity of harmful gas and dust in the air has been reduced, the environmental protection performance of digit control machine tool has been improved.

Compared with the prior art, in this environment-friendly digit control machine tool with clean function of piece, can clean the piece of the inside accumulation of base 7 through clean mechanism, the practicality of digit control machine tool has been improved, compare with current clean mechanism, this clean mechanism gets rid of the piece through two blowdown grooves 22, the in-process of clean 10 reciprocating motion of piece has been reduced, the piece is piled up at the inside probability of base 7, moreover, can purify dust and the harmful gas that the digit control machine tool produced through purifying mechanism, the environmental protection performance of digit control machine tool has been improved, compare with current purification mechanism, this purification mechanism can also dispel the heat to grinding device 4, the stability of digit control machine tool work has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.