CN109514094B

CN109514094B - Laser cutting machine

Info

Publication number: CN109514094B
Application number: CN201811312335.1A
Authority: CN
Inventors: 臧晨晨; 王浩
Original assignee: Shandong Prade Intelligent Equipment Co ltd
Current assignee: Shandong Prade Intelligent Equipment Co.,Ltd.
Priority date: 2018-11-06
Filing date: 2018-11-06
Publication date: 2021-05-25
Anticipated expiration: 2038-11-06
Also published as: CN109514094A

Abstract

The invention belongs to the technical field of laser cutting, and particularly relates to a laser cutting machine which comprises a base, a frame body and a controller, wherein the base is provided with a base seat; the surfaces of the pulleys are sleeved with a hemp rope; the hemp ropes are wound at the two ends of the two rotating shafts and on the surfaces of the rotating shafts of the motor; the surfaces of the rotating shafts are uniformly and fixedly sleeved with first springs, and the inner diameters of the first springs are gradually decreased from left to right; the inner wall of the top of the frame body is fixedly connected with a laser generator; a dry ice maker is arranged on the right side of the laser generator; the lower surface of the dry ice maker is provided with high-pressure spray heads which are uniformly distributed; extrusion plates are connected in the closed barrels in a sliding manner; the inner wall of the protective cover is uniformly provided with air ports; the surface of the spring wire of the first spring is uniformly provided with convex teeth; sand grains are attached to the surfaces of the convex teeth; the top of the frame body is fixedly connected with a gas collecting chamber; the gas collection chamber is communicated with a dry ice maker; the invention has the characteristics of simple operation, high product cutting efficiency, uniform and thorough cooling and long service life.

Description

Laser cutting machine

Technical Field

The invention belongs to the technical field of laser cutting, and particularly relates to a laser cutting machine.

Background

The laser cutting is to focus the laser emitted by the laser into a laser beam with high power density through an optical path system. The laser beam irradiates the surface of the workpiece to enable the workpiece to reach a melting point or a boiling point, simultaneously, the high-pressure gas coaxial with the beam blows away the melted or gasified metal, and the material finally forms a kerf along with the movement of the relative position of the beam and the workpiece, so that the purpose of cutting is achieved.

Some technical solutions of laser cutting machines have appeared in the prior art, and for example, a chinese patent with application number 2014103672566 discloses a laser cutting machine, which includes: the laser assembly, arrange the conveying platform that is used for transporting the product that waits to cut under the laser assembly in, the safety cover that fixes laser assembly and place in on the laser assembly, the dry ice cooling module who is fixed in the safety cover.

This technical scheme's a laser cutting machine, when the product transportation with conveying platform friction production heat, and the unable air of contact of product leads to the product heat can't scatter and disappear, is unfavorable for the later stage cooling, and frictional force too big leads to the product transportation slow simultaneously, and light source department heat dissipation is not abundant, leads to power supply temperature too high easily, produces the influence to laser, sprays the dry ice through single high pressure nozzle, can't make the dry ice evenly adhere to with the product surface, is unfavorable for the cooling of product.

Disclosure of Invention

The invention provides a laser cutting machine, which aims to make up for the defects of the prior art and solve the problems that the product cannot be effectively cooled during transportation, the product transportation speed is slow due to overlarge friction force, the light source cannot effectively dissipate heat, damage is easily caused due to long-time use, and when a single nozzle sprays dry ice, the dry ice cannot be uniformly sprayed on the surface of the product, so that the cooling is not uniform.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a laser cutting machine which comprises a base, a frame body and a controller, wherein the controller is used for controlling the cutting machine to work; the frame body is fixedly connected to the base; a feeding port is formed in the side face of the left side of the frame body; a discharge hole is formed in the right side surface of the frame body; the two ends of the upper surface of the base are fixedly connected with fixing plates; two rotating shafts are rotatably connected between the fixing plates and are positioned on the same horizontal line; the upper surface of the base is fixedly connected with a motor; pulleys are arranged at four corners of the frame body; the surfaces of the pulleys are sleeved with a hemp rope; the hemp rope has larger friction force and can enhance the transmission efficiency; the hemp ropes are wound at the two ends of the two rotating shafts and the surfaces of the rotating shafts of the motors, the winding directions of the two ends of the same rotating shaft are opposite, and the winding directions of the same ends of the two rotating shafts are opposite, so that the two rotating shafts rotate in opposite directions while the rotating shafts are driven to normally rotate when the motors rotate in the forward direction, and the products are prevented from sliding down to the rotating directions of the rotating shafts when the rotating shafts rotate in the same direction; the surface of the rotating shaft is uniformly and fixedly sleeved with a plurality of first springs, the inner diameter of each first spring is gradually reduced from left to right, and the springs with the same traditional inner diameter are easy to contact with a product incompletely when in use, so that the product is slipped and is not beneficial to transportation; meanwhile, the winding directions of the first springs on the surfaces of the two rotating shafts are opposite, so that when the rotating shafts rotate, a product is enabled to move rightwards at a constant speed through the first springs; the product is transported by the first spring and is in point contact with the product, so that the contact area of the product and air can be enlarged, and the surface of the product is effectively cooled in the transportation process; the inner wall of the top of the frame body is fixedly connected with a laser generator; the laser generator comprises a protective cover and a light source, and the light source is fixedly connected in the protective cover; a dry ice maker is arranged on the right side of the laser generator; the lower surface of the dry ice maker is provided with high-pressure spray heads which are uniformly distributed; the during operation, the motor rotates, it rotates to drive the pivot through the rope made of hemp, the pivot drives first spring rotation when rotating, through under two first spring at the uniform velocity pivoted cooperations, landing about can not when making the uniform velocity right motion of product, through the rotatory transportation of first spring, make the product through laser generator cutting back, the dry ice maker sprays dry ice to product surface through high pressure nozzle, to the effectual cooling of product surface, prevent that the high temperature that laser produced from producing the influence to the product, the setting of a plurality of high pressure nozzles, effectively prevent that the dry ice from spraying incomplete phenomenon.

Preferably, a gap between the light source and the protective cover in the laser generator is five centimeters, so that the light source contacts air to a greater extent and is cooled; openings are formed in the side walls of the two sides of the protective cover; the fan blades are arranged in the opening in a rotating mode; during operation, a large amount of heat is generated in the working process of the light source, gas in the protective cover is heated, the air pressure in the protective cover is enhanced, the gas flows through the opening, the fan blades are driven to rotate, the rotation of the fan blades can enhance the flow of the gas, and the heat of the light source can be effectively dissipated through the air flow.

Preferably, the upper surface of the base is provided with a groove; the grooves are uniformly provided with closed barrels; extrusion plates are connected in the closed barrels in a sliding manner; the extrusion plate is in a T-shaped design, the upper end of the extrusion plate penetrates through the closed barrel, the lower end of the extrusion plate is fixedly connected with the bottom of the closed barrel through a second spring, and the extrusion plate supports the first spring initially; the inner wall of the protective cover is uniformly provided with air ports; the inner cavity of the closed barrel is communicated with the air port; the during operation, the product is placed in first spring surface through the pan feeding mouth, because the both ends internal diameter of first spring varies, under the action of gravity of product, can extrude first spring downwards, and the stripper plate contacts first spring surface during the initial time, and first spring moves down, drives the stripper plate and moves down to extrude airtight bucket inner cavity, make the gaseous air current flow in the cavity through the gas port, accelerate the air current flow in the safety cover, thereby accelerate the flabellum to rotate, and then strengthen the cooling effect to the light source.

Preferably, convex teeth are uniformly arranged on the surface of the spring wire of the first spring; sand grains are attached to the surfaces of the convex teeth; during operation, can strengthen the frictional force between first spring and the product through dogtooth and sand grain, prevent to skid in the product transportation, the dogtooth can increase the area of contact of product and air simultaneously to accelerate the cooling rate of product.

Preferably, the top of the frame body is fixedly connected with a gas collecting chamber; a conduit is arranged at the opening; the guide pipe is communicated with the opening and the gas collection chamber, and the guide pipe is provided with a one-way valve to ensure that the gas collection chamber is continuously inflated when the fan blade in the opening rotates; the gas collection chamber is communicated with a dry ice maker; a pressure valve is arranged at the communication position, when the pressure reaches a certain value, the pressure valve is opened, and the gas enables the dry ice to be sprayed to the surface of the product through the high-pressure nozzle more quickly so as to cool the product; during operation, the fan blade rotates after the product is arranged in first spring surface, aerify the plenum chamber, when the distance between the rightmost end of product and the rightmost end high pressure nozzle is the shortest, plenum chamber atmospheric pressure reaches the maximum value, the atmospheric pressure valve is opened, the dry ice sprays in the product surface, the product continues to move to the right, when the region that the product surface sprayed the dry ice will leave the region that high pressure nozzle can spray, plenum chamber pressure reaches the maximum value once more, the pressure valve is opened, effectively prevent that product surface dry ice from spraying inhomogeneous phenomenon, it is more even to make product surface dry ice, the cooling is more thorough.

The invention has the following beneficial effects:

1. according to the laser cutting machine, the hemp rope, the rotating shaft and the first spring are arranged, the motor drives the hemp rope to rotate the rotating shaft, so that the first spring rotates, the rotating direction of the rotating shaft is opposite, products can be effectively prevented from slipping off in the transportation process, the surface of the spring wire of the first spring is provided with the convex teeth and the sand grains, the friction force between the first spring and the products can be enhanced, slipping of the products in the transportation process is prevented, meanwhile, the contact area of the products and the air can be enlarged through the convex teeth, and the cooling speed of the products is increased.

2. According to the laser cutting machine, the extrusion plate, the closed barrel and the fan blades are arranged, the first spring moves downwards to drive the extrusion plate to move downwards, so that the cavity in the closed barrel is extruded, gas in the cavity flows out through the air port, airflow flowing in the protective cover is accelerated, the gas flows through the opening by matching with the light source, the fan blades are driven to rotate, the flowing of the gas can be enhanced by the rotation of the fan blades, and the heat of the light source can be effectively dissipated through the airflow.

3. According to the laser cutting machine, the air collection chamber and the high-pressure spray head are arranged, the air collection chamber is inflated through rotation of the fan blade, when the distance between the rightmost end of a product and the rightmost end high-pressure spray head is shortest, the air pressure of the air collection chamber reaches the maximum value, the air pressure valve is opened, dry ice is sprayed on the surface of the product, the product continues to move to the right, when the area, sprayed with the dry ice, on the surface of the product is about to leave the area, sprayed by the high-pressure spray head, the pressure of the air collection chamber reaches the maximum value again, the pressure valve is opened, the phenomenon that the dry ice is sprayed on the surface of.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a front view of the present invention when not in operation;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a view of B of FIG. 1;

FIG. 4 is a cross-sectional view of C-C of FIG. 1;

FIG. 5 is a front view of the present invention in operation;

in the figure: the dry ice maker comprises a base 1, a motor 11, a pulley 12, a hemp rope 13, a groove 14, a closed barrel 15, an extrusion plate 16, a second spring 17, a frame 2, a feeding port 21, a discharging port 22, a fixing plate 23, a rotating shaft 24, a first spring 25, an air collection chamber 26, a laser generator 3, a protective cover 31, a light source 32, an opening 33, fan blades 34, an air port 35, a dry ice maker 4, a high-pressure spray nozzle 41 and a product 5.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, a laser cutting machine includes a base 1, a frame 2 and a controller, wherein the controller is used for controlling the operation of the cutting machine; the frame body 2 is fixedly connected to the base 1; a feeding opening 21 is formed in the side face of the left side of the frame body 2; a discharge hole 22 is formed in the right side surface of the frame body 2; the two ends of the upper surface of the base 1 are fixedly connected with fixing plates 23; two rotating shafts 24 are rotatably connected between the fixing plates 23, and the two rotating shafts 24 are positioned on the same horizontal line; the upper surface of the base 1 is fixedly connected with a motor 11; pulleys 12 are arranged at four corners of the frame body 2; the surfaces of the pulleys 12 are sleeved with a hemp rope 13; the hemp rope 13 has larger friction force, so that the transmission efficiency can be enhanced; the hemp ropes 13 are wound at the two ends of the two rotating shafts 24 and the surface of the rotating shaft 24 of the motor 11, the winding directions of the two ends of the same rotating shaft 24 are opposite, and the winding directions of the same ends of the two rotating shafts 24 are opposite, so that the rotating shaft 24 is driven to normally rotate when the motor 11 rotates positively, and the two rotating shafts 24 rotate in opposite directions, so that the product 5 is prevented from sliding down to the rotating direction of the rotating shaft 24 due to the rotation in the same direction; the surface of the rotating shaft 24 is uniformly and fixedly sleeved with a plurality of first springs 25, the inner diameter of each first spring 25 is gradually reduced from left to right, the springs with the same traditional inner diameter are easy to contact with the product 5 incompletely when in use, so that the product 5 slips and is not beneficial to transportation, the first springs 25 with different inner diameters are used, and under the action of gravity of the product 5, the first springs 25 can be ensured to be in complete contact with the product 5, the friction force is increased, and the product 5 is prevented from slipping in the transportation process; meanwhile, the winding directions of the first springs 25 on the surfaces of the two rotating shafts 24 are opposite, so that the product 5 is enabled to move rightwards at a constant speed through the first springs 25 when the rotating shafts 24 rotate; the product 5 is transported by the first spring 25 and is in point contact with the product 5, so that the contact area of the product 5 and air can be enlarged, and the surface of the product 5 is effectively cooled in the transportation process; the inner wall of the top of the frame body 2 is fixedly connected with a laser generator 3; the laser generator 3 comprises a protective cover 31 and a light source 32, and the light source 32 is fixedly connected in the protective cover 31; a dry ice maker 4 is arranged on the right side of the laser generator 3; the lower surface of the dry ice maker 4 is provided with high-pressure spray heads 41 which are uniformly distributed; in operation, motor 11 rotates, it rotates to drive pivot 24 through twine 13, pivot 24 drives first spring 25 when rotating and rotates, under the cooperation through two first springs 25 at the uniform velocity pivoted, landing about can not be controlled when making 5 at the uniform velocity right movements of product, through the rotatory transportation of first spring 25, make product 5 through laser generator 3 cutting back, dry ice maker 4 sprays dry ice to 5 surfaces of product through high pressure nozzle 41, to 5 surperficial effectual cooling of product, prevent that the high temperature that laser produced from producing the influence to 5 production of product, the setting of a plurality of high pressure nozzle 41, effectively prevent that the dry ice from spraying incomplete phenomenon.

As an embodiment of the present invention, a gap between the light source 32 and the protective cover 31 in the laser generator 3 is five centimeters, so that the light source 32 contacts air to a greater extent to cool the light source 32; openings 33 are formed in the side walls of the two sides of the protective cover 31; the opening 33 is internally and rotatably provided with fan blades 34; during operation, the light source 32 generates a large amount of heat in the operation process, heats the air in the protective cover 31, enhances the air pressure in the protective cover 31, enables the air to flow through the opening 33, drives the fan blades 34 to rotate, enhances the flow of the air through the rotation of the fan blades 34, and can effectively dissipate the heat of the light source 32 through the air flow.

As an embodiment of the present invention, the upper surface of the base 1 is provided with a groove 14; the grooves 14 are uniformly provided with closed barrels 15; extrusion plates 16 are connected in the closed barrel 15 in a sliding manner; the extrusion plate 16 is in a T-shaped design, the upper end of the extrusion plate penetrates through the closed barrel 15, the lower end of the extrusion plate is fixedly connected with the bottom of the closed barrel 15 through a second spring 17, and the extrusion plate 16 supports a first spring 25 at the beginning; the inner wall of the protective cover 31 is uniformly provided with air ports 35; the inner cavity of the closed barrel 15 is communicated with the air port 35; the during operation, product 5 is placed in first spring 25 surface through pan feeding mouth 21, because the both ends internal diameter of first spring 25 is unequal, under the action of gravity of product 5, can extrude first spring 25 downwards, initial time stripper plate 16 contacts first spring 25 surface, first spring 25 moves down, it moves down to drive stripper plate 16, thereby extrude 15 inner cavities of airtight bucket, make the interior gas of cavity flow through gas port 35, accelerate the air current flow in the safety cover 31, thereby accelerate flabellum 34 to rotate, and then strengthen the cooling effect to light source 32.

As an embodiment of the present invention, the spring wire surface of the first spring 25 is uniformly arranged with convex teeth; sand grains are attached to the surfaces of the convex teeth; during operation, can strengthen the frictional force between first spring 25 and the product 5 through dogtooth and sand grain, prevent to skid in the 5 transportation of product, the dogtooth can increase the area of contact of product 5 with the air simultaneously to accelerate the cooling rate of product 5.

As an embodiment of the invention, the top of the frame body 2 is fixedly connected with a gas collection chamber 26; a conduit is arranged at the opening 33; the conduit is communicated with the opening 33 and the gas collection chamber 26, and is provided with a one-way valve, so that the gas collection chamber 26 is continuously inflated when the fan blades 34 in the opening 33 rotate; the gas collection chamber 26 is communicated with the dry ice maker 4; a pressure valve is arranged at the communication position, when the pressure reaches a certain value, the pressure valve is opened, and the gas enables the dry ice to be sprayed to the surface of the product 5 through the high-pressure spray head 41 more quickly so as to cool the product 5; when the device works, the product 5 is placed on the surface of the first spring 25, the fan blades 34 rotate to inflate the air collection chamber 26, when the distance between the rightmost end of the product 5 and the rightmost end high-pressure spray nozzle 41 is shortest, the air pressure of the air collection chamber 26 reaches the maximum value, the air pressure valve is opened, the dry ice is sprayed on the surface of the product 5, the product 5 continues to move to the right, when the area, sprayed with the dry ice, on the surface of the product 5 leaves the area which can be sprayed by the high-pressure spray nozzle 41, the pressure of the air collection chamber 26 reaches the maximum value again, the pressure valve is opened, the phenomenon that the dry ice on the surface of the product.

When the device works, the motor 11 rotates, the rotating shaft 24 is driven to rotate through the hemp rope 13, the rotating shaft 24 drives the first spring 25 to rotate when rotating, the product 5 is placed on the surface of the first spring 25 through the feeding port 21, because the inner diameters of the two ends of the first spring 25 are different, the first spring 25 can be extruded downwards under the action of the gravity of the product 5, the first spring 25 moves downwards to drive the extrusion plate 16 to move downwards, so as to extrude the cavity in the closed barrel 15, the gas in the cavity flows out through the gas port 35, the flow of the gas in the protective cover 31 is accelerated, meanwhile, the light source 32 generates a large amount of heat in the working process, heats the gas in the protective cover 31, enhances the pressure in the protective cover 31, the gas flows through the opening 33 to drive the fan blades 34 to rotate, the gas collection chamber 26 is inflated, and the product 5 cannot slide left and right while moving at a constant speed under the cooperation of the, through the rotatory transportation of first spring 25, make product 5 through laser generator 3 cutting, when the distance between the rightmost end of product 5 and rightmost end high pressure nozzle 41 is the shortest, plenum chamber 26 atmospheric pressure reaches the maximum value, the atmospheric pressure valve is opened, the dry ice sprays in product 5 surface, product 5 continues to move to the right, when the region that sprays the dry ice on product 5 surface will leave the region that high pressure nozzle 41 can spray, plenum chamber 26 pressure reaches the maximum value once more, the pressure valve is opened, effectively prevent that product 5 surface dry ice from spraying inhomogeneous phenomenon, make product 5 surface dry ice more even, the cooling is more thorough.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A laser cutting machine is characterized in that: the cutting machine comprises a base (1), a frame body (2) and a controller, wherein the controller is used for controlling the cutting machine to work; the frame body (2) is fixedly connected to the base (1); a feeding opening (21) is formed in the side face of the left side of the frame body (2); a discharge hole (22) is formed in the right side surface of the frame body (2); both ends of the upper surface of the base (1) are fixedly connected with fixing plates (23); two rotating shafts (24) are rotatably connected between the fixing plates (23), and the two rotating shafts (24) are positioned on the same horizontal line; the upper surface of the base (1) is fixedly connected with a motor (11); pulleys (12) are arranged at four corners of the frame body (2); the surfaces of the pulleys (12) are sleeved with a hemp rope (13) together; the hemp rope (13) has larger friction force and can enhance the transmission efficiency; the hemp ropes (13) are wound at the two ends of the two rotating shafts (24) and the surface of the rotating shaft (24) of the motor (11), the winding directions of the two ends of the same rotating shaft (24) are opposite, and the winding directions of the same ends of the two rotating shafts (24) are opposite, so that when the motor (11) rotates forwards, the rotating shafts (24) are driven to rotate normally, the two rotating shafts (24) rotate towards opposite directions, and the product (5) is prevented from sliding down towards the rotating direction of the rotating shafts (24) due to the rotation in the same direction; the surface of the rotating shaft (24) is uniformly and fixedly sleeved with a plurality of first springs (25), the inner diameter of each first spring (25) is gradually reduced from left to right, the springs with the same traditional inner diameter are easy to contact with a product (5) incompletely when in use, so that the product (5) slips and is not beneficial to transportation, the first springs (25) with different inner diameters are used, and under the action of the gravity of the product (5), the first springs (25) can be ensured to be in complete contact with the product (5), the friction force is increased, and the product (5) is prevented from slipping in the transportation process; meanwhile, the winding directions of the first springs (25) on the surfaces of the two rotating shafts (24) are opposite, so that when the rotating shafts (24) rotate, the products (5) move rightwards at a constant speed through the first springs (25); the product (5) is transported by the first spring (25) and is in point contact with the product (5), so that the contact area of the product (5) and air can be enlarged, and the surface of the product (5) is effectively cooled in the transportation process; the inner wall of the top of the frame body (2) is fixedly connected with a laser generator (3); the laser generator (3) comprises a protective cover (31) and a light source (32), and the light source (32) is fixedly connected in the protective cover (31); a dry ice maker (4) is arranged on the right side of the laser generator (3); the lower surface of the dry ice maker (4) is provided with high-pressure spray heads (41) which are uniformly distributed; the motor (11) rotates, the rotating shaft (24) rotates through the hemp rope (13), the product (5) moves rightwards at a constant speed through the first spring (25), after being cut by the laser generator (3), the surface of the product (5) is effectively cooled through the dry ice maker (4), and the dry ice is sprayed more comprehensively and uniformly through the arrangement of the plurality of high-pressure spray heads (41);

a gap between the light source (32) and the protective cover (31) in the laser generator (3) is five centimeters, so that the light source (32) contacts air to a greater extent and the temperature of the light source (32) is reduced; openings (33) are formed in the side walls of the two sides of the protective cover (31); the opening (33) is internally and rotatably provided with fan blades (34); the light source (32) works to heat gas in the protective cover (31) to enhance the air pressure, the gas flows through the opening (33) to drive the fan blades (34) to rotate, and the fan blades (34) can enhance the flow of the gas to effectively dissipate heat of the light source (32);

a groove (14) is formed in the upper surface of the base (1); the grooves (14) are uniformly provided with closed barrels (15); extrusion plates (16) are connected in the closed barrel (15) in a sliding manner; the extrusion plate (16) is in a T-shaped design, the upper end of the extrusion plate penetrates through the closed barrel (15), the lower end of the extrusion plate is fixedly connected with the bottom of the closed barrel (15) through a second spring (17), and the extrusion plate (16) supports the first spring (25) at the beginning; the inner wall of the protective cover (31) is uniformly provided with air ports (35); the inner cavity of the closed barrel (15) is communicated with the air port (35); when the product (5) is placed on the surface of the first spring (25), the first spring (25) is extruded, so that the cavity in the closed barrel (15) is extruded, the air port (35) is vented, the airflow flow is accelerated, the rotation of the fan blades (34) is accelerated, and the cooling effect on the light source (32) is enhanced;

the surface of the spring wire of the first spring (25) is uniformly provided with convex teeth; sand grains are attached to the surfaces of the convex teeth; the friction force between the first spring (25) and the product (5) can be enhanced through the convex teeth and the sand grains, the product (5) is prevented from slipping in the transportation process, and meanwhile, the contact area between the product (5) and the air can be enlarged through the convex teeth, so that the cooling speed of the product (5) is accelerated;

the top of the frame body (2) is fixedly connected with a gas collecting chamber (26); a conduit is arranged at the opening (33); the conduit is communicated with the opening (33) and the gas collection chamber (26), and a one-way valve is arranged on the conduit to ensure that the gas collection chamber (26) is continuously inflated when the fan blade (34) in the opening (33) rotates; the gas collection chamber (26) is communicated with a dry ice maker (4); the pressure valve is arranged at the communication part, when the pressure reaches a certain value, the pressure valve is opened, the gas enables the dry ice to be sprayed to the surface of the product (5) through the high-pressure spray nozzle (41) more quickly, the product (5) is cooled, after the gas in the gas collection chamber (26) is sprayed out, when the area of the product (5) sprayed with the dry ice is about to leave the area which can be sprayed by the high-pressure spray nozzle (41), the pressure valve reaches the highest pressure value, and the gas is sprayed again, so that the condition that the dry ice on the surface of the product (5) is sprayed unevenly and the temperature is not;

when the device works, the motor (11) rotates, the rotating shaft (24) is driven to rotate through the hemp rope (13), the rotating shaft (24) drives the first spring (25) to rotate when rotating, the product (5) is placed on the surface of the first spring (25) through the feeding port (21), because the inner diameters of two ends of the first spring (25) are different, the first spring (25) can be extruded downwards under the action of the gravity of the product (5), the first spring (25) moves downwards to drive the extrusion plate (16) to move downwards, so that the cavity in the closed barrel (15) is extruded, the gas in the cavity flows out through the gas port (35), the airflow flowing in the protective cover (31) is accelerated, meanwhile, a large amount of heat is generated in the working process of the light source (32), the gas in the protective cover (31) is heated, the internal pressure of the protective cover (31) is enhanced, the gas flows through the opening (33), the fan blades (34) are driven to rotate, and the gas collection chamber (26), under the cooperation of the uniform-speed rotation of the two first springs (25), the product (5) can not slide left and right while moving rightwards at a uniform speed, the product (5) is cut by the laser generator (3) through the rotary transportation of the first springs (25), when the distance between the rightmost end and the rightmost end high-pressure spray nozzle (41) of the product (5) is shortest, the air pressure of the air collection chamber (26) reaches the maximum value, the air pressure valve is opened, the dry ice is sprayed on the surface of the product (5), the product (5) continues to move rightwards, when the area where the dry ice is sprayed on the surface of the product (5) is about to leave the area where the high-pressure spray nozzle (41) can spray, the pressure of the air collection chamber (26) reaches the maximum value again, the pressure valve is opened, the phenomenon that the dry ice on the surface of the product (5) is sprayed unevenly is.