In-line laser cutting device for packaging material

Abstract

The present application relates to the technical fields of laser cutting, and discloses an online laser cutting device for packaging material, which comprises a laser cutting assembly, a nitrogen nozzle, first transmission rollers, second transmission rollers, third transmission rollers, fourth transmission rollers and fifth transmission rollers; the first transmission rollers and the second transmission rollers are both provided in pairs for front section conveying of the strip-shaped packaging paper, the third transmission rollers are provided individually for straight angle conveying of the middle section of the strip-shaped packaging paper, and the fourth transmission rollers and the fifth transmission rollers are also provided individually for conveying and winding of the rear section of the strip-shaped packaging paper; a disconnection piece output assembly matched with the strip-shaped packaging paper is arranged between the second transmission rollers and the third transmission rollers, and the disconnection piece output assembly intermittently outputs the disconnection pieces. The present application not only ensures the flatness of the cutting section, but also improves the efficiency and continuity of the cutting operation, and realizes the purpose of quickly collecting and summarizing the small strip-shaped packaging paper.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting, and in particular relates to an online laser cutting device for packaging materials. Background Art

[0002] Laser cutting equipment is a high-precision processing equipment among machine tools. It completes the cutting task through the cooperation of various components.

[0003] Currently, the slitting of packaging materials cannot be separated from the participation of laser cutting equipment, which is especially suitable for cutting composite packaging materials such as aluminized film. However, composite packaging materials are generally thin and in the form of rolls, which are not easy to spread out on the cutting table. Even if they are spread out, there are many wrinkles and the cutting effect is poor. If conveyor rollers are used to assist in spreading, the slitting sections of materials are inconvenient to collect, which presents a major technical defect. Summary of the Invention

[0004] The purpose of the present invention is to provide an online laser cutting device for packaging materials to solve the problem in the prior art that it is difficult to perform laser cutting on composite packaging materials of similar types as aluminum-coated films.

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

[0006] The online laser cutting device for packaging materials is used for laser cutting strip packaging paper, including:

[0007] A laser cutting assembly comprising a laser generator, a laser transmission element, and a cutting head. The laser transmission element is used to transmit the laser beam generated by the laser generator to the cutting head, which focuses the laser beam onto the surface of the strip packaging paper to complete the cutting operation.

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

[0009] The machine further comprises a first conveying roller, a second conveying roller, a third conveying roller, a fourth conveying roller and a fifth conveying roller, each of the first conveying roller and the second conveying roller being provided in a pair for conveying the front section of the strip packaging paper, the third conveying roller being provided alone for conveying the middle section of the strip packaging paper at a right angle, and the fourth conveying roller and the fifth conveying roller being provided alone for conveying and winding the rear section of the strip packaging paper, respectively;

[0010] Among them, the strip wrapping paper is placed vertically between the second conveying roller and the third conveying roller, and the strip wrapping paper is placed horizontally between the third conveying roller and the fourth conveying roller; a disconnecting piece output assembly matching the strip wrapping paper is provided between the second conveying roller and the third conveying roller, and the disconnecting piece output assembly intermittently outputs disconnecting pieces and attaches the disconnecting pieces to the back of all the places to be cut on the strip wrapping paper.

[0011] Preferably, the first, second and third transmission rollers have the same roller diameter, and the fourth and fifth transmission rollers have the same roller diameter and are larger than the first, second and third transmission rollers.

[0012] Preferably: the disconnect output assembly includes a mounting stand, a butt plate is installed on one side of the mounting stand, the strip packaging paper passes through the gap between the butt plate and the mounting stand, an electric guide rail is embedded on the mounting stand, and a feeding piece is slidingly arranged in the electric guide rail; the feeding piece includes a sliding socket and a mounting straight plate, and a plurality of strip-shaped grooves for placing the disconnect are spaced apart from top to bottom on the surface of the mounting straight plate.

[0013] Preferably: the disconnecting piece output assembly also includes a side plate installed on the side of the mounting stand facing away from the abutment plate, a telescopic cylinder is installed on the side of the side plate, and a pressure plate is installed on the output end of the telescopic cylinder for pushing the disconnecting piece embedded in the strip groove to the back of the strip packaging paper to be cut.

[0014] Preferably, the feeding member is gradually lifted in the electric guide rail to cooperate with the telescopic cylinder and the pressure plate to achieve the purpose of sequential and intermittent feeding of the disconnecting parts.

[0015] Preferably: the side of the pressure plate facing the abutment plate is provided with densely distributed vacuum suction holes, and the side of the pressure plate facing away from the abutment plate is provided with a negative pressure vacuum generator, which is connected to the vacuum suction holes to improve the reliability of the pressure plate when pushing the disconnecting parts.

[0016] Preferably, screws are provided at both ends of the abutment plate, and the abutment plate is fixed to the mounting frame by means of the screws; pins are provided at both ends of the side plates, and the side plates are fixed to the mounting frame by means of the pins.

[0017] Preferably, a linear motor is arranged in the electric guide rail to drive the feeding piece, driving the feeding piece to move vertically from low to high in the mounting stand, and the disconnecting pieces in the feeding piece are replaced with new ones after being used up.

[0018] Preferably: the disconnecting piece includes an adhesive portion, and a caulking slot of the same length as the adhesive portion is centrally provided on the side of the adhesive portion facing away from the pressure plate, and an auxiliary absorption layer is provided in the caulking slot to absorb the energy of the laser beam to prevent the laser beam from penetrating the adhesive portion and causing the adhesive portion to break.

[0019] Preferably, the disconnecting piece further comprises a sheet metal isolating layer, which is arranged at the inner bottom of the caulking and close to the auxiliary absorption layer, for isolating the laser beam from penetrating the auxiliary absorption layer, thereby further preventing the laser beam from penetrating the adhesion portion and causing the adhesion portion to break.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention uses the first and second conveyor rollers to perform preliminary conveying and shaping, and then cooperates with the disconnector output assembly to press and bond the disconnectors to the back sides of all the places to be cut on the strip packaging paper, which not only ensures the flatness of the cut section, but also improves the efficiency and continuity of the cutting operation, and can also achieve the purpose of quickly collecting and summarizing small sections of strip packaging paper.

[0022] 2. By increasing the roller diameters of the fourth and fifth conveyor rollers, the present invention can significantly reduce the probability of disconnected parts being broken or falling off, avoid interruptions and failures in the tensioning transmission mode, and ensure that the cut small strips of packaging paper can be efficiently rolled up outside the fifth conveyor roller.

[0023] 3. The present invention can ensure the reliability of the disconnecting parts that connect the two sections of strip packaging paper after cutting through the structural subdivision of the disconnecting parts, avoid the situation where the laser beam penetrates the disconnecting parts and causes the disconnecting parts to break, ensure the continuity of the tensioning transmission method, improve the operating efficiency of laser cutting, and ensure high winding efficiency of the small sections of strip packaging paper after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the present invention when it is running;

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

[0026] Figure 3 A three-dimensional view of the disconnect output assembly of the present invention;

[0027] Figure 4 This is a structural breakdown diagram of the disconnect output assembly of the present invention;

[0028] Figure 5 This is a schematic structural diagram of the strip-shaped embedded groove interrupter connector of the present invention;

[0029] Figure 6 This is a structural breakdown diagram of the disconnecting piece of the present invention.

[0030] In the picture:

[0031] 1, strip packaging paper; 2, laser cutting assembly; 21, laser generator; 22, laser transmission; 23, cutting head; 3, nitrogen nozzle; 4, disconnecting piece; 41, adhesion part; 411, embedded joint; 42, auxiliary absorption layer; 43, sheet metal partition layer; 5, disconnecting piece output assembly; 51, mounting rack; 511, electric guide rail; 52, resistance plate; 521, screw; 53, feeding piece; 531, sliding socket; 532, mounting straight plate; 533, strip-shaped embedded groove; 54, side plate; 541, pin; 55, telescopic air cylinder; 56, pressure 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 DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] REFERENCE Figure 1As shown, the present application provides an online laser cutting device of packaging material, comprising 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 realize movement by cooperating with a mature X-Y-Z three-axis sliding table module in the prior art. The X-Y-Z three-axis sliding table module is generally composed of aluminum alloy profiles as supporting members, cooperating with guide rail systems, transmission mechanisms, drive systems, control systems and the like. The specific component composition and working principle will not be described here. The laser cutting assembly 2 comprises 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. 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 to the side of the cutting head 23 and is used to provide auxiliary gas to help blow away molten material and prevent the cut 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 realize gas supply. The first transmission roller 6 and the second transmission roller 7 are both provided in pairs and are used for the front section conveying of the strip-shaped packaging paper 1. The first transmission roller 6 and the second transmission roller 7 are both provided in pairs, which is intended to facilitate the conveying and shaping of the light and thin strip-shaped packaging paper 1 and to improve the flatness of the strip-shaped packaging paper 1 during cutting, thereby ensuring the flatness of the cut. The third transmission roller 8 is provided singly and is used for the straight 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 design of the straight angle, the operation sequence of the disconnection piece output assembly 5 and the laser cutting assembly 2 and the nitrogen nozzle 3 is separated, that is, the disconnection piece 4 is first punched on the back of the strip-shaped packaging paper 1 to be cut through the disconnection piece output assembly 5. At this time, the strip-shaped packaging paper 1 that passes through the disconnection piece output assembly 5 is vertically arranged, which facilitates the pressing and attaching of the disconnection piece 4. Then, through the straight angle, the disconnection piece 4 on the strip-shaped packaging paper 1 is moved to the directly below the laser cutting assembly 2. After the laser cutting assembly 2 cuts the strip-shaped packaging paper 1 to be cut, the two cut sections are connected together by the disconnection piece 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 strip-shaped packaging paper 1 connected together by the disconnection piece 4. Then, the multiple sections of the strip-shaped packaging paper 1 still connected together after cutting pass through the disconnection piece 4 and are wound on the fifth transmission roller 10, realizing 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. The strip-shaped packaging paper 1 is horizontally placed between the third transmission roller 8 and the fourth transmission roller 9. A disconnection piece output assembly 5 matched with the strip-shaped packaging paper 1 is arranged between the second transmission roller 7 and the third transmission roller 8. The disconnection piece output assembly 5 outputs the disconnection piece 4 intermittently and attaches the disconnection piece 4 to the back of all the cutting sections of the strip-shaped packaging paper 1.In this way, the pre-conveying shaping is performed by the first conveying roller 6 and the second conveying roller 7, the conveying track of the strip packaging paper 1 is straightened by the third conveying roller 8, the back surface of all the to-be-cut parts of the strip packaging paper 1 is pressed and adhered with the disconnecting piece 4 by the disconnecting piece output assembly 5, the connecting effect of the small strip packaging paper 1 after cutting is achieved, the small strip packaging paper 1 after cutting is conveniently rolled outside the fifth conveying roller 10 after passing through the fourth conveying roller 9, the flatness of the cutting section is ensured, the efficiency and continuity of the cutting operation are improved, and the purpose of quickly collecting and summarizing the small strip packaging paper 1 encountered in the previous operation is achieved.

[0034] When the small strip packaging paper 1 collected outside the fifth conveying roller 10 reaches a certain amount, the fifth conveying roller 10 is removed and a new fifth conveying roller 10 is replaced, so that when the small strip packaging paper 1 is needed, the small strip packaging paper 1 connected by the disconnecting pieces 4 outside the removed fifth conveying roller 10 can be gradually pulled out, and when the strip packaging paper 1 is needed, the disconnecting piece 4 at the joint between the strip packaging paper 1 and the next strip packaging paper 1 can be torn off, which is convenient and easy to use.

[0035] More specifically, the roller body diameters of the first conveying roller 6, the second conveying roller 7 and the third conveying roller 8 are the same, the roller body diameters of the fourth conveying roller 9 and the fifth conveying roller 10 are the same and greater than the roller body diameters of the first conveying roller 6, the second conveying roller 7 and the third conveying roller 8. Among them, the driving means and mode 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, because they are conventional technical means and common knowledge in the prior art, so they will not be described here. The roller body diameters of the fourth conveying roller 9 and the fifth conveying roller 10 are about three to five times greater than the roller body diameters of the first conveying roller 6, the second conveying roller 7 and the third conveying roller 8, which is due to the existence of the disconnecting piece 4. By increasing the roller body diameters of the fourth conveying roller 9 and the fifth conveying roller 10, the possibility of the disconnecting piece 4 being detached when the small strip packaging paper 1 connected by the disconnecting piece 4 after cutting passes through the fourth conveying roller 9 and the fifth conveying roller 10 is greatly reduced. The large diameter of the fourth conveying roller 9 and the fifth conveying roller 10 makes the transition curve in the conveying process of the strip packaging paper 1 more gentle, thereby greatly reducing the probability of the disconnecting piece 4 being detached, and ensuring that the small strip packaging paper 1 after cutting can be smoothly rolled outside the fifth conveying roller 10.

[0036] In further embodiments, reference is made to Figure 2-Figure 4As shown, the disconnecting piece output assembly 5 includes a mounting stand 51, a butt plate 52 is installed on one side of the mounting stand 51, screws 521 are provided at both ends of the butt plate 52, and the butt plate 52 is fixed to the mounting stand 51 by the screws 521. The strip packaging paper 1 passes through the gap between the butt plate 52 and the mounting stand 51. During the transmission of the strip packaging paper 1, it is arranged against the side of the butt plate 52. In this way, the disconnecting piece 4 in the feeding piece 53 is pushed out by the pressure plate 56, and cooperates with the butt plate 52 acting as a pad to achieve the purpose of fast pressing and fast sticking of the disconnecting piece 4 to the strip packaging paper 1 to be cut. An electric guide rail 511 is embedded on the mounting stand 51, and a feeding piece 53 is slidingly arranged in the electric guide rail 511; the feeding piece 53 includes a sliding socket 531 and a mounting straight plate 532, and a plurality of strip-shaped embedding grooves 533 for the placement of the disconnecting piece 4 are spaced apart from top to bottom on the surface of the mounting straight plate 532. The embedding method of the disconnecting piece 4 in the strip-shaped embedding groove 533 can be achieved by a detachable method such as card installation, which will not be repeated here. It can achieve the two purposes of placing the disconnecting piece 4 in the strip-shaped embedding groove 533 and allowing the disconnecting piece 4 to be removed from the strip-shaped embedding groove 533 when the pressure plate 56 pushes the disconnecting piece 4.

[0037] The disconnecting piece output assembly 5 also includes a side panel 54 mounted on the side of the mounting frame 51 facing away from the abutment plate 52. Pins 541 are provided at both ends of the side panel 54. The side panel 54 is fixed to the mounting frame 51 through the pins 541. A telescopic cylinder 55 is installed on the side of the side panel 54. A pressure plate 56 is installed on the output end of the telescopic cylinder 55 for pushing the disconnecting piece 4 embedded in the strip-shaped groove 533 to the back of the strip packaging paper 1 to be cut. In an optional embodiment, the telescopic cylinder 55 can also be set as an electric push rod.

[0038] In this embodiment, the telescopic cylinder 55 is extended and retracted to drive the pressure plate 56 to achieve a translational reciprocating motion, and the feeding piece 53 is gradually lifted in the electric guide rail 511 to cooperate with the telescopic cylinder 55 and the pressure plate 56 to achieve the purpose of sequential and intermittent feeding of the disconnecting piece 4. Specifically, a linear motor is configured in the electric guide rail 511. The linear motor drive is an existing mature technology, so it will not be repeated here. The feeding piece 53 is driven to move vertically from low to high in the mounting stand 51. In this way, the translational reciprocating motion of the pressure plate 56 can achieve the purpose of intermittent output of the disconnecting piece 4, and the feeding piece 53 is replaced with a new one after the disconnecting piece 4 in it is used up. The feeding piece 53 is a wearable piece. After the disconnecting piece 4 in it is used up, a new feeding piece 53 is replaced, and then the electric guide rail 511 is cooperated to achieve the purpose of vertical translation conveying from low to high, which is similar to the action of loading a bullet, with high flexibility and smooth and reliable operation.

[0039] In a further embodiment, a dense distribution of vacuum suction holes 561 is provided on the side of the pressure plate 56 facing the abutment plate 52, and a negative pressure vacuum generator (not shown in the figure) is provided on the side of the pressure plate 56 facing away from the abutment plate 52. 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 to improve the reliability of the pressure plate 56 when pushing the disconnecting part 4. Among them, the side of the pressure plate 56 with the vacuum suction holes 561 can be set to an arc surface that matches the arched surface of the adhesion part 41, thereby improving the fit of the pressure plate 56 when pushing the disconnecting part 4 and ensuring its purpose of pressing and attaching the disconnecting part 4.

[0040] In this embodiment, when the pressure plate 56 is pushed out of the disconnecting part 4 in the strip-shaped groove 533 by the telescopic cylinder 55, the negative pressure vacuum generator is started accordingly. When the pressure plate 56 pushes the disconnecting part 4, the vacuum suction hole 561 plays an auxiliary role in adsorbing the disconnecting part 4, reducing the chance of the disconnecting part 4 falling or being skewed due to pressure, and pressing the disconnecting part 4 neatly onto the part 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 arched surface. The plane can be coated with adhesive to improve its adhesion to the surface of the strip packaging paper 1. The arched surface can improve the reliability of the pressure plate 56 when it is depressing. A caulking 411 of the same length as the adhesive portion 41 is opened in the center of the side of the adhesive portion 41 facing away from the pressure plate 56. Considering that the intensity of the laser beam is sufficient to penetrate the strip packaging paper 1 to achieve For cutting purposes, roller tensioning transmission is adopted, and there is no work surface to attach to. Therefore, the following specific settings are made: an auxiliary absorption layer 42 is provided in the caulking 411. The auxiliary absorption layer 42 can be set to the same material as the strip packaging paper 1. The purpose is to weaken the energy of the laser beam by adding a layer of thickness to the strip packaging paper 1, and to absorb the laser beam energy, thereby preventing the laser beam from penetrating the adhesion part 41 and causing the adhesion part 41 to break. This ensures the reliability of the disconnecting member 4 that connects the two sections of the strip packaging paper 1 after cutting, and avoids interruption and failure of the tensioning transmission method.

[0042] In addition, if the laser beam parameters are accidentally set too large, the laser beam penetration ability is sufficient to pass through the auxiliary absorption layer 42, causing the adhesion part 41 to break. Therefore, the following further settings are made: the disconnector 4 also includes a sheet metal partition layer 43, which is arranged at the inner bottom of the caulking 411 and is arranged close to the auxiliary absorption layer 42 to isolate the laser beam that may penetrate the auxiliary absorption layer 42, further avoiding the laser beam penetrating the adhesion part 41 and causing the adhesion part 41 to break, thereby further ensuring the reliability of the disconnector 4 of the two sections of strip packaging paper 1 after connection and cutting.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An online laser cutting device for packaging materials, used for laser cutting of strip packaging paper, characterized in that: include: A laser cutting assembly, comprising a laser generator, a laser transmission element, and a cutting head; The nitrogen nozzle is attached to the cutting head and is used to provide auxiliary gas to help blow away the molten material and prevent the incision from sticking; The machine further comprises a first conveying roller, a second conveying roller, a third conveying roller, a fourth conveying roller and a fifth conveying roller, each of the first conveying roller and the second conveying roller being provided in a pair for conveying the front section of the strip packaging paper, the third conveying roller being provided alone for conveying the middle section of the strip packaging paper at a right angle, and the fourth conveying roller and the fifth conveying roller being provided alone for conveying and winding the rear section of the strip packaging paper, respectively; The strip wrapping paper is placed vertically between the second and third conveying rollers, and the strip wrapping paper is placed horizontally between the third and fourth conveying rollers; a disconnecting piece output assembly matching the strip wrapping paper is provided between the second and third conveying rollers, and the disconnecting piece output assembly intermittently outputs disconnecting pieces and attaches the disconnecting pieces to the back of all the places to be cut of the strip wrapping paper; the roller bodies of the first, second and third conveying rollers have the same diameter, and the roller bodies of the fourth and fifth conveying rollers have the same diameter and are larger than the roller body diameters of the first, second and third conveying rollers; The disconnecting piece output assembly includes a mounting platform, a back plate is installed on one side of the mounting platform, the strip packaging paper passes through the gap between the back plate and the mounting platform, an electric guide rail is embedded on the mounting platform, and a feeding piece is slidably arranged in the electric guide rail; the feeding piece includes a sliding socket and a mounting straight plate, and a plurality of strip-shaped embedding grooves for the placement of the disconnecting pieces are spaced apart from each other from top to bottom on the surface of the mounting straight plate; the disconnecting piece output assembly also includes a side plate installed on the side of the mounting platform facing away from the back plate, a telescopic cylinder is installed on the side of the side plate, and a pressure plate is installed on the output end of the telescopic cylinder for pushing the disconnecting piece embedded in the strip embedding groove to the back side of the strip packaging paper to be cut; The disconnector includes an adhesive portion, and a caulking slot with the same length as the adhesive portion is provided in the center of the side of the adhesive portion facing away from the pressure plate. An auxiliary absorption layer is provided in the caulking slot to absorb the energy of the laser beam and prevent the laser beam from penetrating the adhesive portion and causing the adhesive portion to break; the disconnector also includes a sheet metal isolation layer, which is provided at the inner bottom of the caulking slot and is arranged close to the auxiliary absorption layer to isolate the laser beam that penetrates the auxiliary absorption layer, further preventing the laser beam from penetrating the adhesive portion and causing the adhesive portion to break.

2. The online laser cutting device for packaging materials according to claim 1, characterized in that: The feeding part is gradually lifted in the electric guide rail to cooperate with the telescopic cylinder and the pressure plate to achieve the purpose of sequential and intermittent feeding of the disconnecting parts.

3. The online laser cutting device for packaging materials according to claim 1, characterized in that: The side of the pressure plate facing the abutment plate is provided with densely distributed vacuum suction holes, and the side of the pressure plate facing away from the abutment plate is provided with a negative pressure vacuum generator, which is connected to the vacuum suction holes to improve the reliability of the pressure plate when pushing the disconnecting parts.

4. The online laser cutting device for packaging materials according to claim 1, characterized in that: Both ends of the abutment plate are provided with screws, and the abutment plate is fixed to the mounting frame by the screws; both ends of the side plate are provided with pins, and the side plate is fixed to the mounting frame by the pins.

5. The online laser cutting device for packaging materials according to claim 2, characterized in that: A linear motor is arranged in the electric guide rail to drive the feeding piece, driving the feeding piece to move vertically from low to high in the mounting platform, and the disconnecting pieces in the feeding piece are replaced with new ones after being used up.

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