Online laser cutting device for packaging materials

Abstract

The invention relates to the technical field of laser cutting, and particularly discloses a packaging material online laser cutting device which comprises a laser cutting assembly, a nitrogen nozzle, a first transmission roller, a second transmission roller, a third transmission roller, a fourth transmission roller and a fifth transmission roller. The first conveying rollers and the second conveying rollers are used for conveying the front section of the strip-shaped packaging paper, the third conveying rollers are arranged singly and used for conveying the middle section of the strip-shaped packaging paper in a right-angle turning mode, and the fourth conveying rollers and the fifth conveying rollers are also arranged singly and used for conveying and winding the rear section of the strip-shaped packaging paper respectively. A disconnection piece output assembly matched with the strip-shaped packaging paper is arranged between the second conveying roller and the third conveying roller, and the disconnection piece output assembly intermittently outputs disconnection pieces. According to the device, the flatness of a cut section is guaranteed, the efficiency and coherence of cutting operation can be improved, and the purpose of rapidly collecting and storing small strip-shaped packaging paper can be achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting, and particularly relates to an on-line laser cutting device for packaging materials. Background Art

[0002] Laser cutting equipment belongs to a high-precision processing equipment in machine tools, and it completes the cutting task through the cooperation of various components.

[0003] Currently, the slitting of packaging materials cannot do without the participation of laser cutting equipment, especially suitable for cutting composite packaging materials of similar types such as aluminized films. However, composite packaging materials are generally thin and in the form of a roll tape, which are not easy to spread out on the cutting table. Even if spread out, there are many wrinkles, and the cutting effect is poor. If auxiliary opening is carried out by using conveying rollers, etc., the cut materials in sections are not convenient to collect, and there are great technical defects. Summary of the Invention

[0004] The purpose of the present invention is to provide an on-line laser cutting device for packaging materials to solve the problem of great difficulty in laser cutting of composite packaging materials of similar types such as aluminized films in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An on-line laser cutting device for packaging materials, used for laser slitting of strip-shaped packaging paper, includes:

[0007] A laser cutting assembly, the laser cutting assembly includes a laser generator, a laser transmission member and a cutting head. The laser transmission member is used to transmit the laser beam generated by the laser generator to the cutting head, and the cutting head focuses the laser beam on the surface of the strip-shaped packaging paper to complete the cutting operation;

[0008] A nitrogen nozzle, which is attached beside the cutting head, used to provide auxiliary gas to help blow away the molten material and prevent the incision from sticking;

[0009] It also includes a first transmission roller, a second transmission roller, a third transmission roller, a fourth transmission roller and a fifth transmission roller arranged in sequence. The first transmission roller and the second transmission roller are both provided in a pair, used for the front section conveying of the strip-shaped packaging paper. The third transmission roller is provided singly, used for the right-angle turning conveying of the middle section of the strip-shaped packaging paper. The fourth transmission roller and the fifth transmission roller are also provided singly, respectively used for the conveying and winding of the rear section of the strip-shaped packaging paper;

[0010] Among them, the strip-shaped wrapping paper is vertically placed between the second transmission roller and the third transmission roller, and horizontally placed between the third transmission roller and the fourth transmission roller; a disconnection part output component matching the strip-shaped wrapping paper is arranged between the second transmission roller and the third transmission roller, and the disconnection part output component intermittently outputs disconnection parts and attaches the disconnection parts to the back of all the places to be cut on the strip-shaped wrapping paper.

[0011] Preferably: the roller diameters of the first transmission roller, the second transmission roller, and the third transmission roller are the same, the roller diameters of the fourth transmission roller and the fifth transmission roller are the same, and are set to be larger than the roller diameters of the first transmission roller, the second transmission roller, and the third transmission roller.

[0012] Preferably: the disconnection part output component includes a mounting frame, a pressing plate is installed on one side of the mounting frame, the strip-shaped wrapping paper passes through the gap between the pressing plate and the mounting frame, an electric guide rail is embedded in the mounting frame, and a feeding part is slidably arranged in the electric guide rail; the feeding part includes a sliding socket and a mounting straight plate, and a plurality of strip-shaped embedding grooves for placing disconnection parts are spaced apart from top to bottom on the surface of the mounting straight plate.

[0013] Preferably: the disconnection part output component further includes a side plate installed on the side of the mounting frame facing away from the pressing plate, a telescopic cylinder is installed on the side surface of the side plate, and a pressing plate is installed at the output end of the telescopic cylinder for pushing and attaching the disconnection parts embedded in the strip-shaped embedding grooves to the back of the places to be cut on the strip-shaped wrapping paper.

[0014] Preferably: the feeding part can be gradually lifted in the electric guide rail to cooperate with the telescopic cylinder and the pressing plate to achieve the purpose of sequential and intermittent feeding of the disconnection parts.

[0015] Preferably: a dense array of vacuum suction holes can be arranged on the side of the pressing plate facing the pressing plate, a negative pressure vacuum generator is arranged on the side of the pressing plate facing away from the pressing plate, and the negative pressure vacuum generator is connected to the vacuum suction holes for improving the reliability when the pressing plate pushes the disconnection parts.

[0016] Preferably: screws are arranged at both ends of the pressing plate, and the pressing plate is fixed on the mounting frame through the screws; pins are arranged at both ends of the side plate, and the side plate is fixed on the mounting frame through the pins.

[0017] Preferably: a linear motor is configured in the electric guide rail to drive the feeding part, driving the feeding part to vertically translate from low to high in the mounting frame, and the feeding part can be replaced with a new one after the disconnection parts in it are used up.

[0018] Preferably: the disconnection part includes an adhesion part, a slotted seam equal in length to the adhesion part is centrally opened on the side of the adhesion part facing away from the pressing plate, and an auxiliary absorption layer is arranged in the slotted seam for absorbing the energy of the laser beam to prevent the laser beam from penetrating the adhesion part and causing the adhesion part to break.

[0019] Preferably, the disconnection member further includes a sheet-shaped metal isolation layer disposed at the inner bottom of the caulking and attached to the auxiliary absorption layer for blocking the laser beam that may penetrate the auxiliary absorption layer, further preventing the laser beam from penetrating the adhesion part and causing the adhesion part to break.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. In the present invention, the first transmission roller and the second transmission roller are used for preliminary conveying and shaping, and then the disconnection member output assembly is used to press and adhere the disconnection member to the back of all the places to be cut on the strip-shaped wrapping paper, which not only ensures the flatness of the cutting section, but also improves the efficiency and coherence of the cutting operation, and can also achieve the purpose of quickly collecting and summarizing small sections of strip-shaped wrapping paper.

[0022] 2. By increasing the roller diameters of the fourth transmission roller and the fifth transmission roller, the present invention can greatly reduce the probability of the disconnection member being torn off or broken, avoid the interruption and failure of the tension transmission mode, and ensure that small sections of strip-shaped wrapping paper after cutting can be efficiently wound around the outside of the fifth transmission roller.

[0023] 3. Through the structural subdivision of the disconnection member, the present invention can ensure the reliability of the disconnection member that connects the two cut sections of the strip-shaped wrapping paper, avoid the situation that the laser beam penetrates the disconnection member and causes the disconnection member to break, ensure the coherence of the tension transmission mode, improve the operation efficiency of laser cutting, and ensure the high winding efficiency of small sections of strip-shaped wrapping paper after slitting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram when the present invention is running;

[0025] Figure 2 is a front view of the disconnection member output assembly of the present invention;

[0026] Figure 3 is a three-dimensional view of the disconnection member output assembly of the present invention;

[0027] Figure 4 is a structural split view of the disconnection member output assembly of the present invention;

[0028] Figure 5 is a schematic structural diagram of the disconnection member in the strip-shaped caulking of the present invention;

[0029] Figure 6 is a structural split view of the disconnection member of the present invention.

[0030] In the figure:

[0031] 1. Banded wrapping paper; 2. Laser cutting assembly; 21. Laser generator; 22. Laser transmission member; 23. Cutting head; 3. Nitrogen nozzle; 4. Disconnection member; 41. Adhesion part; 411. Caulking joint; 42. Auxiliary absorption layer; 43. Sheet metal partition layer; 5. Disconnection member output assembly; 51. Installation bench; 511. Electric guide rail; 52. Pressure plate; 521. Screw; 53. Feeding member; 531. Sliding socket; 532. Installation straight plate; 533. Strip-shaped slot; 54. Side plate; 541. Pin; 55. Telescopic cylinder; 56. Pressing plate; 561. Vacuum suction hole; 6. First transmission roller; 7. Second transmission roller; 8. Third transmission roller; 9. Fourth transmission roller; 10. Fifth transmission roller. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Refer to Figure 1As shown in the figure, the present invention provides an online laser cutting device for packaging materials, which includes a laser cutting assembly 2, a nitrogen nozzle 3, a first transmission roller 6, a second transmission roller 7, a third transmission roller 8, a fourth transmission roller 9, and a fifth transmission roller 10. The laser cutting assembly 2 can achieve movement by cooperating with the mature X-Y-Z three-axis slide module in the prior art. The X-Y-Z three-axis slide module is generally supported by aluminum alloy profiles and is composed of a guide rail system, a transmission mechanism, a drive system, a control system, etc. The specific component composition and working principle will not be elaborated here; the laser cutting assembly 2 includes a laser generator 21, a laser transmission member 22, and a cutting head 23. The laser transmission member 22 is used to transmit the laser beam generated by the laser generator 21 to the cutting head 23, and the cutting head 23 focuses the laser beam on the surface of the strip-shaped packaging paper 1 to complete the cutting operation; the nitrogen nozzle 3 is attached beside the cutting head 23 and is used to provide auxiliary gas to help blow away the molten material and prevent the incision from sticking. The nitrogen nozzle 3 is connected to a nitrogen cylinder (not shown in the figure, which is a mature technology in the prior art) to achieve gas supply; there are a pair of first transmission rollers 6 and a pair of second transmission rollers 7, which are used for the front section conveying of the strip-shaped packaging paper 1. The arrangement of a pair of first transmission rollers 6 and a pair of second transmission rollers 7 is intended to facilitate the conveying and shaping of the thin strip-shaped packaging paper 1, improve the flatness of the strip-shaped packaging paper 1 during cutting, and thus ensure the flatness of the incision. The third transmission roller 8 is provided singly and is used for the right-angle conveying of the middle section of the strip-shaped packaging paper 1. The laser cutting assembly 2 and the nitrogen nozzle 3 are arranged between the third transmission roller 8 and the fourth transmission roller 9. Through the right-angle design, the operation sequence of the disconnection part output assembly 5 and the laser cutting assembly 2 and the nitrogen nozzle 3 is separated. That is, first, through the disconnection part output assembly 5, a disconnection part 4 is punched on the back of the strip-shaped packaging paper 1 at the place to be cut. At this time, the strip-shaped packaging paper 1 passing through the disconnection part output assembly 5 is vertically arranged, which is convenient for pressing and attaching the disconnection part 4. Then, through the right angle, the disconnection part 4 on the strip-shaped packaging paper 1 is moved to directly below the laser cutting assembly 2, so that after the laser cutting assembly 2 cuts the place to be cut on the strip-shaped packaging paper 1, the two cut sections can be continuously connected together by the disconnection part 4. The fourth transmission roller 9 and the fifth transmission roller 10 are also provided singly and are used for the conveying and winding of the rear section of the strip-shaped packaging paper 1 respectively. The fourth transmission roller 9 serves the purpose of conveying the multiple sections of strip-shaped packaging paper 1 connected together by the disconnection part 4. After cutting, the multiple sections of strip-shaped packaging paper 1 still connected together by the disconnection part 4 are wound around the outside of the fifth transmission roller 10 to achieve the purpose of convenient winding; among them, the strip-shaped packaging paper 1 is vertically placed between the second transmission roller 7 and the third transmission roller 8, and the strip-shaped packaging paper 1 is horizontally placed between the third transmission roller 8 and the fourth transmission roller 9; a disconnection part output assembly 5 matching the strip-shaped packaging paper 1 is arranged between the second transmission roller 7 and the third transmission roller 8. The disconnection part output assembly 5 intermittently outputs the disconnection part 4 and attaches the disconnection part 4 to the back of all places to be cut on the strip-shaped packaging paper 1.In this way, the preliminary conveying and shaping are carried out by the first conveying roller 6 and the second conveying roller 7. The conveying trajectory of the strip-shaped wrapping paper 1 is improved by turning a right angle through the third conveying roller 8. The disconnection part output assembly 5 is coordinated to press and stick the disconnection parts 4 on the back of all the places to be cut on the strip-shaped wrapping paper 1, which plays a role in connecting the small strip-shaped wrapping papers 1 after cutting. It is convenient for the small strip-shaped wrapping papers 1 after cutting to be wound outside the fifth conveying roller 10 after passing through the fourth conveying roller 9. This not only ensures the flatness of the cutting section, but also improves the efficiency and coherence of the cutting operation, and can also achieve the purpose of quickly collecting and summarizing the small strip-shaped wrapping papers 1 encountered in previous operations.

[0034] When the small strip-shaped wrapping papers 1 collected outside the fifth conveying roller 10 reach a certain quantity, the fifth conveying roller 10 can be removed and replaced with a new fifth conveying roller 10. In this way, when small strip-shaped wrapping papers 1 are needed, the small strip-shaped wrapping papers 1 connected by the disconnection parts 4 outside the removed fifth conveying roller 10 can be gradually pulled out. When a strip-shaped wrapping paper 1 is needed, just tear off the disconnection part 4 at the joint with the next strip-shaped wrapping paper 1. It is convenient and easy to use.

[0035] More specifically, the roller diameters of the first conveying roller 6, the second conveying roller 7, and the third conveying roller 8 are the same, and the roller diameters of the fourth conveying roller 9 and the fifth conveying roller 10 are the same and are set to be larger than the roller diameters of the first conveying roller 6, the second conveying roller 7, and the third conveying roller 8. Among them, the driving means and methods of the first conveying roller 6, the second conveying roller 7, the third conveying roller 8, the fourth conveying roller 9, and the fifth conveying roller 10 are not described. Since they are all conventional technical means and common knowledge in the prior art, they will not be elaborated here. The roller diameters of the fourth conveying roller 9 and the fifth conveying roller 10 are larger than the roller diameters of the first conveying roller 6, the second conveying roller 7, and the third conveying roller 8, about three to five times. This is considered due to the existence of the disconnection parts 4. By increasing the roller diameters of the fourth conveying roller 9 and the fifth conveying roller 10, the possibility that the disconnection parts 4 are broken free when the small strip-shaped wrapping papers 1 connected by the disconnection parts 4 after cutting pass through the fourth conveying roller 9 and the fifth conveying roller 10 is greatly reduced. The large-diameter setting of the fourth conveying roller 9 and the fifth conveying roller 10 makes the transition curve of the strip-shaped wrapping paper 1 during the conveying process smoother, thereby greatly reducing the probability that the disconnection parts 4 are torn off and ensuring that the small strip-shaped wrapping papers 1 after cutting can be smoothly wound outside the fifth conveying roller 10.

[0036] In a further embodiment, refer to Figures 2 - 4As shown in the figure, the disconnection part output assembly 5 includes a mounting bench 51. On one side of the mounting bench 51, a backing plate 52 is installed. At both ends of the backing plate 52, screws 521 are provided. The backing plate 52 is fixed to the mounting bench 51 through the screws 521. The strip-shaped wrapping paper 1 passes through the gap between the backing plate 52 and the mounting bench 51. During the transmission of the strip-shaped wrapping paper 1, it is arranged against the side surface of the backing plate 52. In this way, the disconnection part 4 in the feeding part 53 is pushed out by the pressing plate 56, and can cooperate with the backing plate 52 acting as a backing plate, so as to achieve the purpose of quickly pressing and sticking the disconnection part 4 to the cutting position of the strip-shaped wrapping paper 1. An electric guide rail 511 is embedded in the mounting bench 51, and a feeding part 53 is slidably arranged in the electric guide rail 511; the feeding part 53 includes a sliding socket 531 and a mounting straight plate 532. On the surface of the mounting straight plate 532, a plurality of strip-shaped grooves 533 for placing the disconnection part 4 are arranged at intervals from top to bottom. The disconnection part 4 can be installed in the strip-shaped grooves 533 in a detachable manner such as clamping. Details are not described here. It can achieve the two purposes of placing the disconnection part 4 in the strip-shaped grooves 533 and enabling it to be disengaged from the strip-shaped grooves 533 when the pressing plate 56 pushes the disconnection part 4.

[0037] The disconnection part output assembly 5 further includes a side plate 54 installed on the side of the mounting bench 51 opposite to the backing plate 52. At both ends of the side plate 54, pins 541 are provided. The side plate 54 is fixed to the mounting bench 51 through the pins 541. A telescopic cylinder 55 is installed on the side surface of the side plate 54, and a pressing plate 56 is installed at the output end of the telescopic cylinder 55, which is used to push and stick the disconnection part 4 embedded in the strip-shaped grooves 533 to the back of the cutting position of the strip-shaped wrapping paper 1; in an alternative embodiment, the telescopic cylinder 55 can also be set as an electric push rod.

[0038] In this embodiment, by the telescopic movement of the telescopic cylinder 55, the pressing plate 56 can be driven to perform a reciprocating translation motion. The feeding part 53 can be gradually lifted in the electric guide rail 511 to cooperate with the telescopic cylinder 55 and the pressing plate 56 to achieve the purpose of sequential and intermittent feeding of the disconnection part 4. Specifically, a linear motor is configured in the electric guide rail 511. The driving of the linear motor is a mature existing technology, so details are not described here. The feeding part 53 is driven to perform a vertical translation from low to high in the mounting bench 51. In this way, in cooperation with the reciprocating translation motion of the pressing plate 56, the intermittent output of the disconnection part 4 can be achieved. Moreover, the feeding part 53 can be replaced with a new one after the disconnection part 4 in it is used up. The feeding part 53 is a consumable part. After the disconnection part 4 in it is used up, a new feeding part 53 is replaced, and then the vertical translation conveying purpose from low to high is achieved in cooperation with the electric guide rail 511, which is similar to the action of loading a bullet, with high flexibility and smooth and reliable operation.

[0039] In a further embodiment, a side of the pressure plate 56 facing the abutment plate 52 may be provided with densely distributed vacuum suction holes 561, and a side of the pressure plate 56 facing away from the abutment plate 52 may be provided with a negative pressure vacuum generator (not shown in the figure). The negative pressure vacuum generator is a device that uses a positive pressure gas source to generate negative pressure. Through the principle of gas dynamics, based on the Bernoulli principle and fluid mechanics, it converts compressed air into negative pressure, thereby realizing functions such as adsorption, transportation, and fixation. The negative pressure vacuum generator is connected to the vacuum suction holes 561, and is used to improve the reliability of the pressure plate 56 when pushing the disconnecting part 4. Among them, the side of the pressure plate 56 provided with the vacuum suction holes 561 can be set to an arc surface matching the arched surface of the adhesion part 41, so as to improve the fit of the pressure plate 56 when pushing the disconnecting part 4 and ensure its purpose of pressing and attaching the disconnecting part 4.

[0040] In this embodiment, when the pressure plate 56 is pushed by the telescopic cylinder 55 to push out the disconnecting piece 4 in the strip-shaped groove 533, the negative pressure vacuum generator can be started accordingly. When the pressure plate 56 pushes the disconnecting piece 4, the vacuum suction hole 561 plays an auxiliary role in the adsorption of the disconnecting piece 4, thereby reducing the probability of the disconnecting piece 4 falling off or being skewed due to pressure, and regularly pressing the disconnecting piece 4 to the place to be cut of the strip packaging paper 1.

[0041] In a further embodiment, referring to Figure 5 and Figure 6 As shown, the disconnecting member 4 includes an adhesive portion 41, which can be made of silicone, so that it has a certain supporting strength and a certain ability to maintain after deformation. One side of the adhesive portion 41 is set as a plane, and the other side is set as an arcuate surface. The plane can be coated with adhesive to improve its adhesion to the surface of the strip packaging paper 1. The arcuate surface can improve the reliability of the pressure plate 56 when it is depressed. A caulking 411 of the same length as the adhesive portion 41 is centrally opened on one side of the adhesive portion 41 facing away from the pressure plate 56. Considering that the intensity of the laser beam may be sufficient to penetrate the strip packaging paper 1 For the purpose of current cutting, roller tension transmission is adopted, and there is no work surface to be attached, so the following specific settings are made: an auxiliary absorption layer 42 is arranged in the caulking 411, and the auxiliary absorption layer 42 can be set to the same material as the strip packaging paper 1, and is intended to weaken the energy of the laser beam by adding a layer of thickness of the strip packaging paper 1, and is used to absorb the energy of the laser beam, so as to avoid the laser beam penetrating the adhesion part 41 and causing the adhesion part 41 to break, thereby ensuring the reliability of the disconnecting piece 4 that connects the two sections of the strip packaging paper 1 after cutting, and avoiding the interruption and failure of the tension transmission mode;

[0042] In addition, if the parameters of the laser beam are accidentally set too large, the laser beam has sufficient penetration ability to pass through the auxiliary absorption layer 42, which may cause the breakage of the adhesion part 41. Therefore, the following further settings are made: The disconnection part 4 further includes a sheet metal isolation layer 43, which is arranged at the inner bottom of the caulking 411 and abuts against the auxiliary absorption layer 42, and is used to block the laser beam that may penetrate the auxiliary absorption layer 42, further preventing the laser beam from penetrating the adhesion part 41 and causing the breakage of the adhesion part 41, thereby further ensuring the reliability of the disconnection part 4 of the two sections of the strip packaging paper 1 after connection and cutting.

[0043] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An online laser cutting device for packaging materials, which is used for laser slitting of strip-shaped packaging paper, and is characterized in that, Including: A laser cutting assembly, which includes a laser generator, a laser transmission member, and a cutting head; A nitrogen nozzle, which is attached beside the cutting head and is used to provide auxiliary gas to help blow away the molten material and prevent the incision from sticking; It further includes a first transmission roller, a second transmission roller, a third transmission roller, a fourth transmission roller, and a fifth transmission roller arranged in sequence. A pair of the first transmission roller and the second transmission roller are provided and are used for the front section conveying of the strip packaging paper. The third transmission roller is provided singly and is used for the right-angle conveying of the middle section of the strip packaging paper. The fourth transmission roller and the fifth transmission roller are also provided singly and are respectively used for the conveying and winding of the rear section of the strip packaging paper; Among them, the strip packaging paper is placed vertically between the second transmission roller and the third transmission roller, and the strip packaging paper is placed horizontally between the third transmission roller and the fourth transmission roller. A disconnection member output assembly matching the strip packaging paper is arranged between the second transmission roller and the third transmission roller. The disconnection member output assembly intermittently outputs disconnection members and attaches the disconnection members to the back of all the cutting positions of the strip packaging paper.

2. The online laser cutting device for packaging materials according to claim 1, wherein: The roller diameters of the first transmission roller, the second transmission roller, and the third transmission roller are the same. The roller diameters of the fourth transmission roller and the fifth transmission roller are the same and are set to be larger than the roller diameters of the first transmission roller, the second transmission roller, and the third transmission roller.

3. The on-line laser cutting device for packaging materials according to claim 1, characterized in that: The disconnection member output assembly includes a mounting frame. One side of the mounting frame is provided with a pressing plate. The strip packaging paper passes through the gap between the pressing plate and the mounting frame. An electric guide rail is embedded in the mounting frame, and a feeding member is slidably arranged in the electric guide rail. The feeding member includes a sliding socket and a mounting straight plate. A plurality of strip-shaped slots for placing disconnection members are spaced apart from top to bottom on the surface of the mounting straight plate.

4. The online laser cutting device for the packaging material according to claim 3, wherein: The disconnection member output assembly further includes a side plate mounted on the side of the mounting frame facing away from the pressing plate. A telescopic cylinder is mounted on the side surface of the side plate, and a pressing plate is mounted at the output end of the telescopic cylinder and is used to push and attach the disconnection members embedded in the strip-shaped slots to the back of the cutting positions of the strip packaging paper.

5. The on-line laser cutting device for the packaging material according to claim 4, characterized in that: The feeding member can be gradually lifted in the electric guide rail to cooperate with the telescopic cylinder and the pressing plate to achieve the purpose of sequential and intermittent feeding of disconnection members.

6. The online laser cutting device for the packaging material according to claim 4, wherein: A dense array of vacuum suction holes can be arranged on the side of the pressing plate facing the pressing plate, and a negative pressure vacuum generator is arranged on the side of the pressing plate facing away from the pressing plate. The negative pressure vacuum generator is connected to the vacuum suction holes and is used to improve the reliability when the pressing plate pushes the disconnection members.

7. The on-line laser cutting device for packaging materials according to claim 4, characterized in that: Screws are arranged at both ends of the pressing plate, and the pressing plate is fixed to the mounting frame through the screws. Pins are arranged at both ends of the side plate, and the side plate is fixed to the mounting frame through the pins.

8. The online laser cutting device for packaging materials according to claim 5, characterized in that: A linear motor is configured in the electric guide rail to drive the feeding member, driving the feeding member to vertically translate from low to high in the mounting frame, and the feeding member can be replaced with a new one after the disconnection members in it are used up.

9. The online laser cutting device for packaging materials according to claim 4, characterized in that: The disconnection member includes an adhesion part. A slot equal in length to the adhesion part is centrally opened on the side of the adhesion part facing away from the pressing plate. An auxiliary absorption layer is arranged in the slot and is used to absorb the energy of the laser beam to prevent the laser beam from penetrating the adhesion part and causing the adhesion part to break.

10. The on-line laser cutting device for the packaging material according to claim 9, characterized in that: The disconnection member further includes a sheet-shaped metal isolation layer, which is arranged at the inner bottom of the caulking and is arranged against the auxiliary absorption layer, and is used to block the laser beam that may penetrate the auxiliary absorption layer, further preventing the laser beam from penetrating the adhesion part and causing the adhesion part to break.

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