CN113858013A

CN113858013A - Cutting machine convenient to fly-cutting

Info

Publication number: CN113858013A
Application number: CN202111111396.3A
Authority: CN
Inventors: 曹丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of metal processing equipment, and discloses a cutting machine convenient for quick cutting. Through the supporting shoe, the kicking block, the setting of electro-magnet, if the break bar is in cutting process by the firm part and when card dies suddenly, speed sensor detects the break bar and is in quiescent condition, speed is zero promptly, the control electro-magnet is electrified, the electro-magnet circular telegram can make its own produce stronger magnetism, can produce great repulsion force to bar magnet, make the kicking block overcome its own and the centrifugal force of supporting shoe ejecting the supporting shoe, make the supporting shoe break away from the installation cavity, the motor still can drive the transmission shaft idle rotation this moment, thereby reach when the unexpected card die condition of break bar during operation, the effect that the loss was avoided to the timely idle rotation protection equipment of motor.

Description

Cutting machine convenient to fly-cutting

Technical Field

The invention relates to the technical field of metal processing equipment, in particular to a cutting machine convenient for rapid cutting.

Background

The cutting machine, also called abrasive wheel saw, is suitable for building, hardware, petrochemical, mechanical metallurgy and hydroelectric installation, and is a common device capable of cutting metal square flat tube, square flat steel, I-steel, channel steel, carbon steel, element tube and other materials.

However, the existing metal cutting machine has the following defects in the actual working process: firstly, because the hardness of each metal material in the metal material is different in size and the shape, thickness and the like are greatly different, when a large metal material is cut in the process of processing some metals with higher hardness, the cutting speed of the cutter wheel is easy to be higher due to larger volume, higher quality and high hardness of the large metal material, or the cutter wheel is easy to be blocked, when the cutting machine is blocked, the motor is suddenly stopped due to butt joint connection, and the whole cutting equipment is in failure and particularly damages the motor due to the condition, so that the cutting machine has the function of quickly separating the input power and the output power of the cutting machine when the equipment is blocked; secondly, because the break bar needs to be in the rotatory cutting state for a long time to lead to the blade to generate heat and extremely overheated, and reached the heat conductivility of woolen cloth itself poor, overheated can make the blade produce very big internal stress, impel the blade too big thermal stress when the cutting, very big probably lead to the blade to take place wearing and tearing, produce the phenomenon that crackle even burst, thereby the life of greatly reduced blade.

Disclosure of Invention

In view of the defects of the background technology, the invention provides the cutting machine convenient for quick cutting, which has the advantages of quickly separating the input power from the output power when the cutting machine is stuck and continuously cooling the cutter wheel at the middle temperature during cutting, and solves the problems in the background technology.

The invention provides the following technical scheme: a cutting machine convenient for fast cutting comprises a machine base, wherein a transmission shaft is movably sleeved in the middle of the machine base, a protective shell fixedly connected with the machine base is movably sleeved on the side face of the other end of the transmission shaft, a cutter wheel is movably sleeved in the middle of the protective shell, a fixed disc is clamped at the end part, extending into one end of the protective shell, of the transmission shaft, four groups of supporting springs which are arranged in an equal circumference mode are fixedly installed inside the fixed disc, supporting blocks which are movably sleeved with the fixed disc are fixedly connected at the other end of each supporting spring, a connecting piece is fixedly connected at the middle part, close to one end of the fixed disc, of the cutter wheel, four groups of installation cavities which are arranged in an equal circumference mode are arranged inside the connecting piece, an electromagnet is fixedly installed at one end, far away from the fixed disc, of each electromagnet, a reset spring is fixedly connected at one end of each electromagnet, and an ejector block is fixedly connected at the other end of each reset spring, the inside fixed mounting of kicking block has bar magnet, one side fixed mounting of protective housing inner wall has speedtransmitter.

Preferably, the inside that protective housing is close to transmission shaft one side top sets up the cavity that three equidistance of group were arranged, the inside fixed mounting of cavity has the bellows, the bellows is towards the one end fixedly connected with armature of transmission shaft, the other end fixedly connected with of bellows is installed and is close to the inside pipeline of a transmission shaft lateral wall at protective housing, the other end intercommunication of pipeline has the arc chamber of seting up in the inside of protective housing side inner wall, the through-hole that a plurality of equidistance of group were arranged is seted up towards one side of break bar to the arc chamber.

Preferably, the electromagnet is electrically connected with a speed sensor, and the speed sensor is electrified to work after the cutter wheel works normally.

Preferably, the armature and the bar magnet are in the same vertical plane, and the bellows is made of elastic rubber.

Preferably, the end face of the supporting block, which is far away from one end of the fixed disk, is arc-shaped, and the end, which faces the supporting block, of the top block is provided with an arc matched with the circular groove at one end of the connecting piece.

The invention has the following beneficial effects:

1. through the supporting shoe, the kicking block, the setting of electro-magnet, if the break bar is in cutting process by the firm part and when card dies suddenly, speed sensor detects the break bar and is in quiescent condition, speed is zero promptly, the control electro-magnet is electrified, the electro-magnet circular telegram can make its own produce stronger magnetism, can produce great repulsion force to bar magnet, make the kicking block overcome its own and the centrifugal force of supporting shoe ejecting the supporting shoe, make the supporting shoe break away from the installation cavity, the motor still can drive the transmission shaft idle rotation this moment, thereby reach when the unexpected card die condition of break bar during operation, the effect that the loss was avoided to the timely idle rotation protection equipment of motor.

2. Through bar magnet, armature, the bellows, the setting in arc chamber, drive the in-process of connecting piece synchronous revolution at the supporting shoe, because bar magnet also can be along with rotatory, rotate at bar magnet to just in time be in same straight line with armature, bar magnet can attract this armature, make relative bellows stretched, aerify, after this bar magnet continues rotatory skew, armature can be compressed under the bellows rebound effect, make the inside air of bellows can get into arc chamber along the pipeline, and discharge from the through-hole of seting up on the protective housing inner wall, the air that can accelerate break bar upper portion flows, cool off the break bar, go round and round, blow to the break bar constantly, realize whole cooling to the break bar, improve cutting blade's life.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of a structural containment shell of the present invention;

FIG. 3 is an enlarged view of the structure A of the present invention;

FIG. 4 is a schematic cross-sectional view of structure B-B of the present invention.

In the figure: 1. a machine base; 2. a drive shaft; 3. a protective housing; 4. a cutter wheel; 5. fixing the disc; 6. a support spring; 7. a support block; 8. a connecting member; 9. a mounting cavity; 10. an electromagnet; 11. a return spring; 12. a top block; 13. a bar magnet; 14. a speed sensor; 15. a cavity; 16. a bellows; 17. an armature; 18. a pipeline; 19. an arcuate chamber.

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.

Referring to fig. 2-3, a cutting machine convenient for fast cutting comprises a base 1, a transmission shaft 2 is movably sleeved in the middle of the base 1, a protective shell 3 fixedly connected with the base 1 is movably sleeved on the side surface of the other end of the transmission shaft 2, a cutter wheel 4 is movably sleeved in the middle of the protective shell 3, a fixed disk 5 is clamped at the end part of one end of the transmission shaft 2 extending into the protective shell 3, the section of the joint part of the end part of the transmission shaft 2 and the fixed disk 5 is an equilateral rectangle with round corners, so as to prevent the fixed disk 5 from rotating relatively due to large rotating force, four groups of support springs 6 arranged in equal circumference are fixedly arranged in the fixed disk 5, the other end of each support spring 6 is fixedly connected with a support block 7 movably sleeved with the fixed disk 5, a connecting piece 8 is fixedly connected in the middle of one end of the cutter wheel 4 close to the fixed disk 5, and the end surface of the support block 7 far away from the fixed disk 5 is arc-shaped, so as to reduce the friction between the supporting block 7 and the connecting piece 8 when rotating and prolong the service life of the supporting block 7, four groups of mounting cavities 9 which are arranged in an equal circumference way are arranged in the connecting piece 8, one end of the mounting cavity 9 far away from the fixed disc 5 is fixedly provided with an electromagnet 10, one end of the electromagnet 10 is fixedly connected with a reset spring 11, the other end of the reset spring 11 is fixedly connected with a top block 12, one end of the top block 12 facing the supporting block 7 is provided with an arc which is matched with a circular groove at one end of the connecting piece 8, so that when the top block 12 is in an extending state, the supporting block 7 and the top block 12 are mutually clamped to influence the normal work of the supporting block, a bar magnet 13 is fixedly arranged in the top block 12, a speed sensor 14 is fixedly arranged on one side of the inner wall of the protective shell 3, the speed sensor 14 faces the cutter wheel 4, and the speed sensor 14 is used for detecting whether the cutter wheel 4 keeps rotating or not; as shown in fig. 1 and 4, the inside of the protection housing 3 close to the top of one side of the transmission shaft 2 is provided with three groups of cavities 15 arranged at equal intervals, the inside fixed mounting of the cavity 15 is provided with a corrugated pipe 16, the corrugated pipe 16 faces to an armature 17 of one end of the transmission shaft 2, the other end of the corrugated pipe 16 is fixedly connected with a pipeline 18 arranged inside one side wall of the protection housing 3 close to the transmission shaft 2, the other end of the pipeline 18 is communicated with an arc-shaped cavity 19 arranged inside the side inner wall of the protection housing 3, and the arc-shaped cavity 19 faces to one side of the cutter wheel 4 and is provided with a plurality of groups of through holes arranged at equal intervals.

Wherein, electro-magnet 10 is connected with speed sensor 14 electricity, speed sensor 14 carries out the circular telegram work again after the normal work of break bar 4, electro-magnet 10 is when the circular telegram, the one end magnetic pole relative with the inside bar magnet 13 of corresponding kicking block 12 is the same distribution, under initial condition, bar magnet 13 can produce the appeal to electro-magnet 10 iron core from taking magnetism, make each kicking block 12 all be in under initial condition and be close to corresponding electro-magnet 10 one side, thereby can give out the opening part of installation cavity 9, be convenient for during supporting shoe 7 is received the installation cavity 9 under the centrifugal force effect, make things convenient for break bar 4 fast work.

Wherein, armature 17 is in same vertical plane with bar magnet 13, and bellows 16 is made by elastic rubber, in the in-process of supporting shoe 7 drive connecting piece 8 synchronous revolution, bar magnet 13 can attract armature 17, make bellows 16 stretched, aerify, after bar magnet 13 continues rotatory skew, armature 17 can be compressed under the effect of bellows 16 resilience, make the inside air of bellows 16 can get into arc chamber 19 along pipeline 18, and discharge from the through-hole of seting up on the protective housing 3 inner wall, can accelerate the air flow on break bar 4 upper portion, cool off break bar 4.

According to the working principle, when metal cutting is carried out, a motor is started firstly, the motor is not shown in the drawing, so that the transmission shaft 2 rotates, the support block 7 which rotates synchronously due to the rotation of the transmission shaft 2 extends outwards under the action of centrifugal force until the outer end of the support block 7 extends into the installation cavity 9, at the moment, the support block 7 can drive the connecting piece 8 and the cutter wheel 4 to rotate synchronously, and after normal cutting is carried out, the speed sensor 14 is electrified to work;

if the cutter wheel 4 is suddenly clamped by a firm part in the cutting process, the speed sensor 14 detects that the cutter wheel 4 is in a static state, namely the speed is zero, the electromagnet 10 is controlled to be electrified, the electromagnet 10 can generate strong magnetism by being electrified and can generate large repulsive force to the bar magnet 13, so that the top block 12 overcomes the centrifugal force of the top block and the supporting block 7 to eject the supporting block 7, the supporting block 7 is separated from the mounting cavity 9, and the motor can drive the transmission shaft 2 to idle at the moment, so that the effect of timely idling of the motor to protect equipment from loss is achieved when the cutter wheel is suddenly clamped during working;

in addition, in the process that the supporting block 7 drives the connecting piece 8 to synchronously rotate, as the bar magnets 13 rotate, when a certain bar magnet 13 rotates to be exactly in the same straight line with the armature 17, the armature 17 is attracted by the bar magnets 13, so that the corrugated pipe 16 is stretched and inflated, after the bar magnets 13 continuously rotate and deflect, the armature 17 is compressed under the resilience effect of the corrugated pipe 16, so that air in the corrugated pipe 16 can enter the arc-shaped cavity 19 along the pipeline 18 and is discharged from the through hole formed in the inner wall of the protective shell 3, the air flow at the upper part of the cutter wheel 4 can be accelerated, the cutter wheel 4 is cooled, and the operation is repeated, the cutter wheel 4 is continuously inflated, the cutter wheel 4 is cooled in the whole process, and the service life of the cutting blade is prolonged;

after cutting work, the motor is closed, speed reduction rotary motion is done to transmission shaft 2, thereby the centrifugal force that supporting shoe 7 received reduces gradually, withdraw from installation cavity 9 until supporting shoe 7, make

transmission shaft

2 and 8 disconnect couplings of connecting piece, ensure the security when break bar 4 stops, and simultaneously, because bar magnet 13 has magnetic attraction to armature 17 all the time, can produce the resistance to break bar 4, prevent break bar 4 to take place the idle running under self inertial action, make break bar 4 idle running reduce by a wide margin, can make break bar 4 at the motor shut down after quick static, prevent that break bar 4 from lasting idle running and taking place the accident, can improve the security of this cutting machine.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cutting machine convenient to fly-cutting, includes frame (1), transmission shaft (2) have been cup jointed in the middle part activity of frame (1), the side activity of the transmission shaft (2) other end has cup jointed protective housing (3) with frame (1) fixed connection, flywheel (4), its characterized in that have been cup jointed in the middle part activity of protective housing (3): the end part joint that transmission shaft (2) stretched into protective housing (3) one end has fixed disk (5), the inside fixed mounting of fixed disk (5) has supporting spring (6) that circumference such as four groups were arranged, the supporting shoe (7) that the other end fixedly connected with and fixed disk (5) activity cup jointed of supporting spring (6), middle part fixedly connected with connecting piece (8) that cutting wheel (4) are close to fixed disk (5) one end, install chamber (9) that circumference such as four groups were arranged are seted up to the inside of connecting piece (8), the one end fixed mounting that fixed disk (5) was kept away from in install chamber (9) has electro-magnet (10), the one end fixedly connected with reset spring (11) of electro-magnet (10), the other end fixedly connected with kicking block (12) of reset spring (11), the inside fixed mounting of kicking block (12) has bar magnet (13), and a speed sensor (14) is fixedly mounted on one side of the inner wall of the protective shell (3).

2. The cutting machine facilitating quick cutting according to claim 1, wherein: protection casing (3) are close to inside of transmission shaft (2) one side top and offer cavity (15) that three equidistance of group were arranged, the inside fixed mounting of cavity (15) has bellows (16), bellows (16) are towards one end fixedly connected with armature (17) of transmission shaft (2), the other end fixedly connected with of bellows (16) is installed and is being close to inside pipeline (18) of transmission shaft (2) a lateral wall in protection casing (3), the other end intercommunication of pipeline (18) has and sets up in the inside arc chamber (19) of protection casing (3) side inner wall, the through-hole that the equidistance of a plurality of groups was arranged is seted up towards one side of break bar (4) in arc chamber (19).

3. The cutting machine facilitating quick cutting according to claim 1, wherein: the electromagnet (10) is electrically connected with a speed sensor (14), and the speed sensor (14) is electrified to work after the cutter wheel (4) works normally.

4. A cutting machine facilitating rapid cutting according to claim 2, wherein: the armature (17) and the bar magnet (13) are in the same vertical plane, and the corrugated pipe (16) is made of elastic rubber.

5. The cutting machine facilitating quick cutting according to claim 1, wherein: the end face, away from one end of the fixed disc (5), of the supporting block (7) is arc-shaped, and an arc matched with a circular groove at one end of the connecting piece (8) is arranged at one end, facing the supporting block (7), of the ejecting block (12).