CN111469485A

CN111469485A - Carton cutting device and cutting method

Info

Publication number: CN111469485A
Application number: CN202010309166.7A
Authority: CN
Inventors: 刘俊; 朱建平; 莫剑兴
Original assignee: Guangzhou Sanlongtai Paper Co ltd
Current assignee: Guangzhou Sanlongtai Paper Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-07-31
Anticipated expiration: 2040-04-20
Also published as: CN111469485B

Abstract

The invention relates to the technical field of cutting machines, aims to solve the problem that burrs are generated on a paperboard cutting surface during cutting, and provides a carton cutting device. By adopting a laser cutting mode, when the laser component is cut, the laser component with the function of the cutting knife is not in direct contact with the paperboard, so that burrs are not easy to appear on the cutting surface of the paperboard, and the cutting quality of the paperboard is improved; through filling inert gas in the sealed cowling, inert gas belongs to the difficult gas that takes place oxidation reaction to make the cardboard when the cutting, be difficult for taking place local burning in the cutting department, the difficult carbonization that takes place of cardboard, so that the cutting effect of cardboard is preferred.

Description

Carton cutting device and cutting method

Technical Field

The invention relates to the technical field of cutting machines, in particular to a carton cutting device and a carton cutting method.

Background

Currently, prior to making cartons, a full sheet of larger paperboard is cut to the desired pattern and size. The most primitive method is to use manual cutting, where the cardboard is manually fixed on a table and then cut with a cutting knife. The method has low cutting efficiency, the cutting quality can not be ensured, and the manual operation has certain potential safety hazard. One mode is to adopt a paper automatic cutting machine to cut, the paper automatic cutting machine comprises a cutting knife and a controller for controlling the cutting knife to cut paper, the paper automatic cutting machine places the paper on a workbench when cutting, and the controller controls the cutting knife to cut the paper on the workbench. But the cutting knife is at the in-process of lower sword, cutting and returning, because of there is the friction in the cutting plane of cutting knife and cardboard, the cutting knife can produce certain power of dragging to the cardboard for cutting edge department at the paper produces deckle edge, and then influences the quality of product, consequently, needs improve this.

Disclosure of Invention

One of the objects of the present invention is to provide a carton cutting device that reduces the occurrence of burrs when cutting a paperboard.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a carton cutting device, includes the mounting bracket and installs the workstation on the mounting bracket, be equipped with the seal box on the workstation, the one end opening of seal box, the open end of seal box with the workstation can open and shut sealing connection, install the drive seal box on the mounting bracket towards being close to the workstation or keeping away from the lifting unit of workstation, be equipped with laser assembly in the seal box, install the laser drive subassembly of drive laser assembly motion in the seal box, one side of mounting bracket is equipped with subassembly and the evacuation subassembly of ventilating, ventilate subassembly and evacuation subassembly all with the seal box intercommunication, the subassembly of ventilating is stored with inert gas.

By adopting the technical scheme, when the paperboard is cut, the paperboard is placed on the workbench, then the lifting assembly is started to place the seal box on the workbench, the seal box is matched with the workbench to enable the paperboard to be placed in a sealing manner, then the vacuumizing device is used for pumping air between the seal box and the workbench out of the seal box, then the ventilation assembly is used for introducing inert gas stored in the ventilation assembly into a cavity between the seal box and the workbench, at the moment, the space between the seal box and the workbench is filled with the inert gas, then the laser driving assembly is started to drive the laser driving assembly to cut the paperboard placed on the workbench, after the cutting is finished, the lifting assembly is started to enable the seal cover to be separated from the workbench, at the moment, the cut paperboard can be taken down from the workbench, a laser cutting mode is adopted, and when the machine is used for cutting, the laser assembly with the function of the cutting knife is not directly contacted with the paperboard, the cutting plane of cardboard is difficult for taking place to pull to make the difficult deckle edge that appears in cutting plane department of cardboard, improved the cutting quality of cardboard. According to the laser cutting principle, when the laser is used for cutting, local high temperature can be formed at the cutting position, inert gas is filled in the sealing cover, the inert gas belongs to gas which is not easy to generate oxidation reaction, so that when the paperboard is used for cutting, local combustion is not easy to generate at the cutting position, the paperboard is not easy to generate local carbonization, and the cutting effect of the paperboard is better. Before the inert gas is filled, the sealed box is vacuumized, so that the influence of the original gas on the concentration of the filled inert gas is reduced.

The present invention in a preferred example may be further configured to: laser assembly includes transverse drive spare and longitudinal drive spare, longitudinal drive spare include the threaded rod and with the coaxial fixed vertical motor of threaded rod, vertical motor and seal box fixed connection, transverse drive spare include the lead screw and with the coaxial fixed transverse motor of lead screw, the threaded rod with the lead screw is placed perpendicularly, the threaded rod with transverse motor threaded connection, the inner wall sliding connection of transverse motor and seal box, laser assembly with lead screw threaded connection, laser assembly is connected with the restriction laser assembly is around lead screw center pin pivoted restriction piece.

Through adopting above-mentioned technical scheme, move through horizontal motor drive lead screw, so that laser subassembly can cut the cardboard along the length direction of lead screw to the cardboard, start vertical driving motor and move along the direction of perpendicular lead screw with drive horizontal driving motor, so as to cut another direction of cardboard, when needs cut out the radian on the cardboard, start horizontal driving motor and vertical driving motor simultaneously, horizontal driving motor is responsible for driving laser subassembly and carries out lateral shifting, simultaneously, laser subassembly carries out the motion of vertical direction under vertical driving motor's drive, this moment alright in order to obtain curved line of cut on the cardboard, so that cut out required pattern on the cardboard as required. Threaded rod and lead screw all have the function of auto-lock, and after the motor stopped to drive, the laser unit just followed closely the motion of stopping, are favorable to improving laser cutting's precision. Carry out spacing effect through the restriction piece to laser assembly to make laser assembly be difficult for taking place to rotate under the drive of lead screw, reduced unnecessary trouble. Because of the inner wall sliding connection of horizontal motor and seal box to make under the drive of threaded rod, horizontal motor is difficult for taking place to rotate, and the drive of cooperation threaded rod carries out corresponding motion.

The present invention in a preferred example may be further configured to: the breather pipe includes breather pipe, aspiration pump and gas tank, nitrogen gas has been deposited to the gas tank, breather pipe and seal box intercommunication, the aspiration pump respectively with the breather pipe with the gas tank intercommunication.

Through adopting above-mentioned technical scheme, can know by the chemical property of helium, there is the place that helium exists, difficult oxidation reaction takes place, consequently, when using laser assembly to cut, is difficult for taking place the carbonization at the cutting position, and the cutting effect of laser cutting subassembly is preferred, and the cutting department is more smooth level and smooth, the quality of the cardboard after the cutting that obtains is preferred. Through with helium storage in the gas storage tank to when needs, in can directly carry the seal box through the aspiration pump, improved the convenience of carrying.

The present invention in a preferred example may be further configured to: the inner wall of the seal box is provided with a slide bar, and the transverse motor is connected with the slide bar in a sliding manner.

Through adopting above-mentioned technical scheme, through with transverse motor and draw runner sliding connection to improve transverse motor stability in the motion process, so that laser assembly is difficult for deviating former default position when the cutting, precision when having improved laser assembly cutting, and then has improved the quality of finished product cardboard.

The present invention in a preferred example may be further configured to: the lifting assembly comprises an air cylinder, the air cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly connected with the mounting frame, and the piston rod is fixedly connected with the seal box.

Through adopting above-mentioned technical scheme, the piston rod through the cylinder drives the seal box motion when moving, in order to realize the lift of seal box, and simultaneously, because the seal box fills into the helium in toward the seal box again after the evacuation, the inside and outside atmospheric pressure of seal box has taken place the change, the atmospheric pressure in the seal box exists and is less than the off-box condition, through cylinder driven effect, the cylinder is applyed to the seal box and is greater than the suction that produces because of the negative pressure, and then mentions the seal box, the convenience of operation has been improved, the convenient cardboard with in the seal box takes out.

The present invention in a preferred example may be further configured to: the opening edge of the seal box is fixedly connected with a seal ring around the circumference of the seal box.

Through adopting above-mentioned technical scheme, through the leakproofness of sealing washer in order to increase to be connected between seal box and the workstation to make at the in-process of cutting, the gaseous junction of difficult following seal box and workstation of seal box in the seal box runs out, has sufficient helium in the seal box, so that the cutting department of cardboard is difficult for taking place the carbonization because of local high temperature, so that laser assembly has the cutting effect of preferred.

The present invention in a preferred example may be further configured to: the utility model discloses a cardboard box, including workstation, locating piece, cardboard, the lateral wall sliding connection of locating piece, the workstation is last to be provided with two at least locating pieces on the workstation, is no less than two locating pieces and sets up respectively in the both sides of workstation, leaves the interval of placing the cardboard between the locating piece of workstation both sides, and the side of cardboard and the lateral wall sliding connection of locating piece, locating piece are located the seal box.

Through adopting above-mentioned technical scheme, carry on spacingly through the circumferential direction of locating piece to the cardboard to make because of the vibrations that cutting assembly arouses are difficult for making the cardboard skew in situ, laser assembly is to the cutting effect preferred of cardboard, and the trouble condition that needs readjustment cardboard position in the reduction cutting process appears.

The present invention in a preferred example may be further configured to: the sealed box comprises a glass box.

Through adopting above-mentioned technical scheme, through setting up the glass case to at the in-process of cutting, the convenient cutting condition of in-box cardboard of in time watching.

Another object of the present invention is to provide a method for cutting a carton, which reduces the generation of burrs during the cutting of the cardboard.

the method comprises the following steps:

s1: putting a paper board to be cut on a workbench, and starting an air cylinder to enable the paper board to be placed between a sealing box and the workbench in a sealing mode;

s2: starting a vacuumizing assembly to pump out original gas between the seal box and the workbench, and then sending gas in the gas storage box into a cavity between the seal box and the workbench through a gas pump;

s3: starting a laser assembly;

s4: and starting the air cylinder to drive the seal box to be separated from the workbench.

By adopting the technical scheme, when the paperboard is cut, the paperboard is placed on the workbench, then the lifting assembly is started to place the seal box on the workbench, the seal box is matched with the workbench to enable the paperboard to be placed in a sealing manner, then the vacuumizing device is used for pumping air between the seal box and the workbench out of the seal box, then the helium gas is introduced into a cavity between the iron box and the workbench through the ventilating assembly, at the moment, the helium gas is filled between the iron box and the workbench, then the laser driving assembly is started to drive the laser driving assembly to cut the paperboard placed on the workbench, after the cutting is finished, the lifting assembly is started to enable the seal cover to be separated from the workbench, at the moment, the cut paperboard can be taken down from the workbench, a laser cutting mode is adopted, and when the laser assembly is used for cutting, the laser assembly with the function of the cutting knife is not in direct contact with the paperboard, so that burrs are not easy to appear at the cutting surface of the paperboard, and the cutting quality of the paperboard is improved.

In conclusion, the beneficial technical effects of the invention are as follows:

1. by adopting a laser cutting mode, when the laser component is cut, the laser component with the function of the cutting knife is not in direct contact with the paperboard, so that burrs are not easy to appear on the cutting surface of the paperboard, and the cutting quality of the paperboard is improved; the sealing cover is filled with inert gas, and the inert gas belongs to gas which is not easy to generate oxidation reaction, so that the local combustion is not easy to generate at the cutting position when the paperboard is cut, the local carbonization is not easy to generate on the paperboard, and the cutting effect of the paperboard is better;

2. the transverse motor drives the screw rod to move, so that the laser assembly can cut the paperboard along the length direction of the screw rod, the longitudinal driving motor is started to drive the transverse driving motor to move along the direction vertical to the screw rod, so as to cut the paperboard in the other direction, when the radian needs to be cut on the paperboard, the transverse driving motor and the longitudinal driving motor are started simultaneously, the transverse driving motor is responsible for driving the laser assembly to move transversely, meanwhile, the laser assembly is driven by the longitudinal driving motor to move in the vertical direction, and at the moment, an arc-shaped cutting line can be obtained on the paperboard, so that the needed pattern can be cut on the paperboard according to the needs;

3. the piston rod through the cylinder drives the seal box motion when moving to realize the lift of seal box, simultaneously, because the seal box fills into the helium again toward the seal box after the evacuation, the inside and outside atmospheric pressure of seal box has taken place the change, the atmospheric pressure in the seal box exists and is less than the off-box condition, through cylinder driven effect, the cylinder is applyed to the seal box and is greater than the suction that produces because of the negative pressure, and then mentions the seal box, the convenience of operation has been improved, the convenient cardboard with in the seal box takes out.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view showing the internal structure of the seal box after the top of the seal box is cut;

fig. 3 is a schematic view of the seal box after one side of the seal box is hidden in the embodiment.

In the figure, 1, a mounting frame; 2. a sealing box; 3. a laser drive assembly; 31. a longitudinal drive member; 311. a longitudinal motor; 312. a threaded rod; 32. a transverse drive; 321. a transverse motor; 322. a screw rod; 4. a laser; 5. a slide bar; 6. an empty groove; 7. a sliding block; 8. a restraining bar; 9. a slide plate; 10. a slideway; 11. a slider; 12. a work table; 13. a vent assembly; 131. a breather pipe; 132. an air pump; 133. a gas storage tank; 14. a vacuum pumping assembly; 141. an air exhaust pipe; 142. an exhaust fan; 15. a cylinder; 151. a cylinder body; 152. a piston rod; 16. a support plate; 17. a paperboard; 18. positioning blocks; 19. a seal ring; 20. a convex strip; 21. and (4) a bump.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1, the carton cutting device disclosed by the invention comprises a mounting frame 1 and a workbench 12 mounted on the mounting frame 1, wherein a sealing box 2 is arranged on the workbench 12, one end of the sealing box 2 is open, the open end of the sealing box 2 faces the workbench 12, the open end of the sealing box 2 is in openable and closable sealing connection with the workbench 12, a ventilation assembly 13 is arranged on one side of the mounting frame 1, the ventilation assembly 13 is communicated with the sealing box 2, and inert gas is stored in the ventilation assembly 13.

The ventilation assembly 13 comprises a soft ventilation pipe 131, a suction pump 132 and a gas storage tank 133, the gas storage tank 133 and the suction pump 132 are both placed on the ground, one end of the ventilation pipe 131 is communicated with the suction pump 132, the other end of the ventilation pipe is communicated with the seal box 2, and the gas storage tank 133 is communicated with the suction pump 132. Specifically, the air outlet end of the air pump 132 communicates with the air pipe 131, and the air inlet end of the air pump 132 communicates with the air tank 133. In other embodiments, the gas in the gas storage tank 133 may be fed into the hermetic container 2 through the vent pipe 131 by a blower, a fan, or the like.

It will be appreciated that the length of the vent tube 131 is sufficient to allow the vent tube 131 to swing with the seal box 2 when the seal box 2 is in motion.

In this embodiment, the inert gas stored in the gas storage tank 133 is helium, and in other embodiments, the inert gas may also be nitrogen.

An evacuation assembly 14 is placed on the floor. The vacuum pumping assembly 14 comprises a soft suction pipe 141 and a suction fan 142 communicated with the suction pipe 141, the suction fan 142 is placed on the ground, one end of the suction pipe 141 is communicated with the sealing box 2, and the other end of the suction pipe 141 is communicated with the suction fan 142. In order to prevent the gas pumped from the pumping tube 141 from flowing backward, a check valve (not shown) is fixed at the connection between the pumping tube 141 and the sealing box 2, so that the external air is prevented from entering the sealing box 2 through the pumping tube 141.

It is understood that the suction pipe 141 is reserved with a sufficient length so that the suction pipe 141 does not easily affect the movement of the seal box 2.

To improve the sealing between the seal box 2 and the table 12, seal rings 19 are fixed to the open end of the seal box 2 and around the four sides of the seal box 2.

Referring to fig. 2, a laser assembly is mounted on the inner wall of the seal box 2 facing the workbench 12, and a laser driving assembly 3 for driving the laser assembly to move is mounted on the inner wall of the seal box 2 facing the workbench 12. The laser drive assembly 3 comprises a transverse drive 32 and a longitudinal drive 31. The longitudinal driving member 31 includes a longitudinal motor 311 and a threaded rod 312 coaxially fixed with the longitudinal motor 311, the longitudinal motor 311 is fixedly connected with the inner side wall of the sealing box 2, and the threaded rod 312 extends along the width direction of the sealing box 2. The transverse driving member 32 comprises a transverse motor 321 and a screw rod 322 coaxially fixed with the rotating shaft of the transverse motor 321, the threaded rod 312 is in threaded connection with the transverse motor 321, the screw rod 322 extends along the length direction of the seal box 2, the threaded rod 312 and the screw rod 322 are distributed on the inner wall of the seal box 2 in an X-Y axis coordinate mode, and the laser assembly is in threaded connection with the screw rod 322.

The seal box 2 is just to the smooth 5 of fixed connection on the inside wall of workstation 12, and draw runner 5 extends along the width direction of seal box 2 and sets up, and vertical motor 311 is fixed at one of them tip of draw runner 5, and draw runner 5 is along the length direction of draw runner 5 sunken have dead slot 6, and threaded rod 312 is placed in dead slot 6, and horizontal motor 321 is installed on draw runner 5 and along the extending direction of draw runner 5 and the cell wall sliding connection of dead slot 6.

In order to make the transverse motor 321 not easy to separate from the sliding strip 5, the outer periphery of the shell of the transverse motor 321 is wrapped and fixed with a sliding block 7, a convex strip 20 is convexly arranged on the side edge of the sliding block 7, a sliding groove (not shown in the figure) for the convex strip 20 to extend into is sunken in the groove wall of the empty groove 6, the sunken direction of the sliding groove is perpendicular to the moving direction of the transverse motor 321, the length direction of the sliding groove is consistent with the length direction of the sliding strip 5, and the convex strip 20 is inserted into the sliding groove and is in sliding connection with the sliding groove.

The other side face, opposite to the side face provided with the sliding strip 5, of the seal box 2 is fixed with a sliding plate 9, the sliding plate 9 is parallel to the sliding rail 5, the sliding plate 9 and the sliding rail 5 are located at the same horizontal height, a sliding way 10 is sunken along the length direction of the sliding plate 9 on the side face, far away from the ground, of the sliding plate 9, the sliding way 10 is connected with a sliding block 11 in a sliding mode, and one end, far away from the transverse motor 321, of the screw rod 322 is fixedly connected with the. The slider 11 and the lead screw 322 provide supporting force, so that the stability of the transverse motor 321 during movement is improved.

Two opposite groove walls of the slide way 10 are both outwards sunken, the side edges of the slide block 11 close to the groove walls of the slide way 10 are respectively provided with a convex block 21 in a convex mode, the convex blocks 21 on the two sides of the slide block 11 respectively extend into the sunken parts of the groove walls of the slide way 10 close to the convex blocks, and the slide block 11 is connected with the slide plate 9 in a sliding mode along the length direction of the slide plate 9. The slider 11 is not easily separated from the slide plate 9.

The laser assembly includes a laser 4 and an optical system (not shown) connected to the laser 4, both of which are digitally controlled and programmed to cut a pattern in the sheet 17.

The laser 4 is connected with the screw rod 322 in a threaded manner, and the laser 4 is connected with a limiting piece for limiting the rotation of the laser 4 around the central shaft of the screw rod 322. Specifically, in the present embodiment, the limiting member includes a limiting rod 8, one end of the limiting rod 8 is fixedly connected to the sliding block 7, the other end of the limiting rod 8 is fixedly connected to the sliding block 11, and the limiting rod 8 is arranged in parallel to the screw rod 322. In other embodiments, the restraining member may also be a restraining plate, a rope, a restraining strip, or the like.

Referring to fig. 3, the mounting frame 1 includes a support plate 16 mounted on the workbench 12, two ends of the support plate 16 are respectively fixed on two sides of the workbench 12, a middle portion of the support plate 16 spans over the seal box 2, and a lifting assembly for driving the seal box 2 to lift and lower in a direction close to or away from the workbench 12 is fixedly connected to the middle portion of the support plate 16.

Specifically, in this embodiment, the lifting assembly includes a cylinder 15, the cylinder 15 includes a cylinder body 151 and a piston rod 152 connected to the cylinder body 151, the cylinder body 151 is fixedly connected to the support plate 16, and the piston rod 152 is vertically disposed toward the seal box 2 and is fixedly connected to the outer sidewall of the seal box 2.

It will be appreciated that in order to provide sufficient lifting space for the seal box 2, a sufficient space should be left between the cylinder 151 and the seal box 2.

The workbench 12 is provided with at least two positioning blocks 18, specifically, in the embodiment, the positioning blocks 18 are two, the two positioning blocks 18 are respectively arranged on two opposite sides of the workbench 12, a gap for placing the paperboard 17 is reserved between the two positioning blocks 18, and the side edge of the paperboard 17 is connected with the outer side wall of the positioning block 18 in a sliding manner.

The ends of the two positioning blocks 18 far away from the workbench 12 are bent towards the middle of the workbench 12 so that the vertical section of the positioning blocks 18 is in the shape of an inverted L, and the paper board 17 is fixed between the bent ends of the positioning blocks 18 and the workbench 12.

In other implementations, the positioning block 18 may also be three, four, five, etc.

The two positioning blocks 18 are both positioned in the closed range of the seal box 2, the positioning blocks 18 are magnets, and the positioning blocks 18 and the workbench 12 are fixedly attracted. So as to adjust the distance between the two positioning blocks 18 according to the size of the paper board 17, so as to fix the paper board 17 on the working table 12.

In the present embodiment, the sealed box 2 includes a glass box for the sake of easy visibility of the inside of the sealed box 2. In other embodiments, the seal box 2 may also be an iron box, a stainless steel box, or the like.

The working conditions and the implementation principle of the embodiment are as follows:

when the paperboard 17 is cut, the pattern of the paperboard 17 to be cut is recorded into the laser 4 through numerical control programming, then the air cylinder 15 is started to enable the opening end of the sealing box 2 to be attached to the workbench 12, so that a sealed cavity is formed between the sealing box 2 and the workbench 12, the air exhauster 142 is started to exhaust air in the sealing box 2, so that the cavity between the sealing box 2 and the workbench 12 is vacuumized, further gas can be filled into the sealing box 2 better, and meanwhile, the purity of the further gas is kept. The suction pump 132 is actuated to fill the helium gas in the gas storage tank 133 into the hermetic container 2 so that the cavity between the hermetic container 2 and the work table 12 is filled with the helium gas. The laser 4 is then activated after the inflation has ceased so that the laser 4 cuts a pre-designed pattern into the sheet 17. Through the mode of laser cutting to make cutting body entity and by not having direct contact between the cutting body entity, the difficult deckle edge that produces of cutting plane of cardboard 17, the cutting plane of cardboard 17 is more level and smooth, and the finished product quality of cardboard 17 is preferred. And the cutting speed is higher through the laser, so that the cutting efficiency of the paperboard 17 is improved.

Because helium is inert gas, difficult oxidation reaction takes place, is full of helium in the seal box 2, and the cutting department of laser cutting cardboard 17 is surrounded by helium, and cardboard 17 is under the influence of laser high temperature, and the cutting department of cardboard 17 is difficult for taking place the carbonization because of local high temperature to make the cutting effect of cardboard 17 better.

By arranging the threaded rod 312 and the threaded rod 322, the laser 4 can be driven by the threaded rod 322 and the transverse motor 321 to move in the X-axis direction to cut in the X-axis direction, or driven by the threaded rod 312 and the longitudinal motor 311 to move in the Y-axis direction to cut in the Y-axis direction, or driven by the transverse motor 321 and the longitudinal motor 311 to move in the X-axis direction and the Y-axis direction simultaneously to cut arc edges on the paper board 17, and driven by the transverse motor 321 and the longitudinal motor 311 to drive the laser 4 to change positions in the sealed box 2 to cut different patterns of paper boards 17.

The cylinder 15, driven by the cylinder 15, overcomes the effect of the differential pressure of the sealed box 2 on lifting the sealed box 2, so that after the cutting of the sheets 17 is completed, the sealed box 2 is lifted to take out the sheet 17 and put in the next sheet 17 to be cut.

The air pump 132 can feed helium into the sealing box 2, or can pump the helium in the air pump 132 back into the gas storage box 133 after the cutting is finished, so as to recycle the helium, and reduce the waste of resources.

Example two:

referring to fig. 1, a carton cutting method disclosed by the present invention is implemented by using the cutting device of the first embodiment, and includes the following steps:

s1: placing the board 17 to be cut on the table 12 and activating the cylinder 15 so that the board 17 is placed hermetically between the sealing box 2 and the table 12;

s2: starting the exhaust fan 142 to exhaust the original gas between the seal box 2 and the workbench 12, and then sending the gas in the gas storage box 133 into the cavity between the seal box 2 and the workbench 12 through the exhaust pump 132;

s3: starting a laser assembly;

s4: the cylinder 15 is actuated to drive the seal box 2 away from the table 12.

The implementation principle of the embodiment is as follows:

through making cardboard 17 sealed place between seal box 2 and workstation 12, fill into the helium in going seal box 2 again after 2 evacuation with seal box, so that be full of the helium in seal box 2, because of the difficult characteristic that takes place oxidation reaction of helium, so that when laser 4 transmission laser is in order to cut cardboard 17, cardboard 17 is under the local high temperature condition because of laser formation, be difficult for taking place the carbonization, laser has the cutting effect of preferred to cardboard 17, the cutting plane of cardboard 17 is more level and smooth, and then make the finished product quality preferred of cardboard 17.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a carton cutting device, includes mounting bracket (1) and installs workstation (12) on mounting bracket (1), its characterized in that: be equipped with seal box (2) on workstation (12), the one end opening of seal box (2), the open end of seal box (2) with workstation (12) can open and shut ground sealing connection, install drive seal box (2) on mounting bracket (1) and be close to workstation (12) or keep away from the lifting unit of workstation (12), be equipped with laser subassembly in seal box (2), install laser drive subassembly (3) that drive laser subassembly moved in seal box (2), one side of mounting bracket (1) is equipped with subassembly (13) and the subassembly (14) of taking out a vacuum, subassembly (13) and the subassembly (14) of taking out a vacuum all with seal box (2) intercommunication ventilates, it has inert gas to store in subassembly (13) of taking out a vacuum.

2. The carton cutting apparatus of claim 1, wherein: laser assembly includes transverse drive spare (32) and longitudinal drive spare (31), longitudinal drive spare (31) include threaded rod (312) and with threaded rod (312) coaxial fixed vertical motor (311), vertical motor (311) and seal box (2) fixed connection, transverse drive spare (32) include lead screw (322) and with lead screw (322) coaxial fixed transverse motor (321), threaded rod (312) with lead screw (322) are placed perpendicularly, threaded rod (312) with transverse motor (321) threaded connection, the inner wall sliding connection of transverse motor (321) and seal box (2), laser assembly with lead screw (322) threaded connection, laser assembly is connected with the restriction laser assembly is around lead screw (322) center pin pivoted restriction piece.

3. The carton cutting apparatus of claim 1, wherein: the air vent pipe (131) comprises an air vent pipe (131), an air suction pump (132) and an air storage tank (133), nitrogen is stored in the air storage tank (133), the air vent pipe (131) is communicated with the sealing box (2), and the air suction pump (132) is respectively communicated with the air vent pipe (131) and the air storage tank (133).

4. The carton cutting apparatus of claim 2, wherein: the inner wall of seal box (2) is installed draw runner (5), horizontal motor (321) with draw runner (5) sliding connection.

5. A carton cutting apparatus according to claim 3, wherein: the lifting assembly comprises a cylinder (15), the cylinder (15) comprises a cylinder body (151) and a piston rod (152), the cylinder body (151) is fixedly connected with the mounting frame (1), and the piston rod (152) is fixedly connected with the seal box (2).

6. The carton cutting apparatus of claim 5, wherein: the opening edge of the seal box (2) is fixedly connected with a seal ring (19) around the circumference of the seal box (2).

7. The carton cutting apparatus of claim 5, wherein: the automatic paper cutting machine is characterized in that at least two positioning blocks (18) are arranged on the workbench (12), the at least two positioning blocks (18) are respectively arranged on two sides of the workbench (12), an interval for placing the paper boards (17) is reserved between the positioning blocks (18) on two sides of the workbench (12), the side edges of the paper boards (17) are in sliding connection with the outer side walls of the positioning blocks (18), and the positioning blocks (18) are located in the seal box (2).

8. The carton cutting apparatus of claim 5, wherein: the sealing box (2) comprises a glass box.

9. A method of cutting a carton cutting apparatus according to any one of claims 1 to 8, characterized by: the method comprises the following steps:

s1: putting the paper board (17) to be cut on the workbench (12), and starting the air cylinder (15) to enable the paper board (17) to be placed between the sealing box (2) and the workbench (12) in a sealing mode;

s2: starting a vacuumizing assembly (14) to pump out original gas between the seal box (2) and the workbench (12), and then sending gas in a gas storage box (133) into a cavity between the seal box (2) and the workbench (12) through a suction pump (132);

s3: starting a laser assembly;

s4: the cylinder (15) is actuated to drive the seal box (2) away from the table (12).