Laser cutting device for easy-to-tear lines of film products

Abstract

The utility model discloses a film product easy-to-tear line laser cutting device, which comprises a fixed seat, a film releasing roller, a film feeding assembly and a laser cutting assembly are arranged on the fixed seat, the film releasing roller is rotatably connected with the fixed seat and is used for placing a roll material film material, and the laser cutting assembly is used for cutting the roll material film material. The roll material film material can be laid on the film feeding assembly and the laser cutting assembly, and the film feeding assembly is used for conveying the film material to the laser cutting assembly. The laser cutting assembly comprises a laser mounting frame, the laser mounting frame is connected with the fixing base, an adjusting assembly is arranged on the laser mounting frame, a laser head is arranged on the adjusting assembly, and the film feeding assembly can convey a film to the position below the laser head. The adjusting assembly can adjust the position of the laser head on the laser mounting frame. The easy-to-tear line is processed through laser, a laser head does not need to be driven to move, the action of equipment is simplified, the processing efficiency is improved, consumables do not need to be replaced, and the processing cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of membrane processing equipment, specifically to a laser cutting device for easy-tear lines on membrane products. Background Technology

[0002] Easy-tear lines are a type of perforation that makes it easy to tear open. They are often found on paper or plastic products. Products with easy-tear lines do not require scissors or force to tear them open; you can simply pull them open with your hands.

[0003] When processing easy-tear lines on membrane products, existing technologies typically employ either hot-press cutting with a thermoforming device or cutting with a dotted-line cutting roller. Regardless of the method, during processing, when the membrane material passes the cutting position, the cutting device needs to be controlled to descend and contact the membrane material to create the easy-tear line; after cutting, the cutting device must be driven back to its original position. Therefore, both methods require controlling the movement of the cutting device, increasing the equipment's operational time and resulting in low processing efficiency. Furthermore, hot-press cutting necessitates periodic replacement of heating consumables, increasing production costs. Utility Model Content

[0004] To address some or all of the problems existing in the prior art, this utility model provides a laser cutting device for easy-tear lines of film products, including a fixed base. The fixed base is equipped with a film feeding roller, a film feeding assembly, and a laser cutting assembly. The film feeding roller is rotatably connected to the fixed base. The film feeding roller is used to place roll film material, and the roll film material can be laid onto the film feeding assembly and the laser cutting assembly. The film feeding assembly is used to feed the film material onto the laser cutting assembly. The laser cutting assembly includes a laser mounting frame, which is connected to the fixed base. The laser mounting frame is equipped with an adjustment assembly, and the adjustment assembly is equipped with a laser head. The film feeding assembly can transport the film material below the laser head, and the adjustment assembly can adjust the position of the laser head on the laser mounting frame.

[0005] As a further improvement of this utility model, the adjustment component includes an adjustment fixing seat, a transverse guide rail on the laser mounting bracket, a transverse slider on the adjustment fixing seat, the transverse slider being slidably engaged with the transverse guide rail, a locking limit block on the adjustment fixing seat, and an adjustment knob on the locking limit block for adjusting the locking limit block to engage or disengage with the transverse guide rail.

[0006] As a further improvement of this utility model, the adjusting fixed base is provided with a lifting adjusting block, the lifting adjusting block is provided with an adjusting handwheel, the laser head is provided with a lifting screw, the lifting screw is slidably connected to the lifting adjusting block, and the adjusting handwheel can drive the lifting screw to slide on the lifting adjusting block.

[0007] As a further improvement of this utility model, the laser head is provided with multiple guide rods, and the adjusting fixing seat is provided with guide sleeves at corresponding positions of the guide rods. One end of the guide rod passes through the corresponding guide sleeve and slides in cooperation with the guide sleeve.

[0008] As a further improvement of this utility model, the number of laser heads is two.

[0009] As a further improvement of this utility model, the film feeding assembly includes a film feeding roller, which is rotatably connected to the fixed base. Roll film can be laid on the film feeding roller. The fixed base is equipped with a film feeding motor, and the output end of the film feeding motor is connected to the film feeding roller.

[0010] As a further improvement of this utility model, the fixed base is provided with a pressing cylinder, the output end of the pressing cylinder is provided with a pressing mounting frame, the pressing mounting frame is slidably connected to the fixed base, the pressing mounting frame is rotatably provided with a pressing roller, and the pressing cylinder can drive the pressing roller to move closer to or away from the film feeding roller.

[0011] As a further improvement of this utility model, the fixed base is provided with a plurality of tensioning rollers, and the tensioning rollers are rotatably connected to the fixed base.

[0012] As a further improvement of this utility model, the fixing base is provided with a photoelectric sensor mounting bracket, and the photoelectric sensor mounting bracket is provided with a detection sensor, which is used to detect the roll film material fed by the film feeding assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a laser head to process easy-tear lines on the film material, eliminating the need to drive the laser head to move, thus simplifying the equipment's operation and improving processing efficiency. Furthermore, using a laser to cut the easy-tear lines on the film material eliminates the need to replace consumables, thereby reducing processing costs. On the other hand, the installation position of the laser head can be adjusted by adjusting the components, making it suitable for different similar products and improving the equipment's versatility. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the laser cutting component in an embodiment of this utility model. Detailed Implementation

[0018] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0019] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] like Figure 1-2As shown, a laser cutting device for easy-tear lines of film products includes a fixed base 1, a film feeding roller 2, a film feeding assembly 3 and a laser cutting assembly 4 on the fixed base 1. The film feeding roller 2 is rotatably connected to the fixed base 1. The film feeding roller 2 is used to place the roll film to be processed, and the roll film can be laid sequentially onto the film feeding assembly 3 and the laser cutting assembly 4. The film feeding assembly 3 is used to feed the film onto the laser cutting assembly 4. Before processing, the easy-tear line laser cutting device for this type of film product is installed on the packaging equipment, connecting the film pulling device of the packaging equipment to the laser cutting component 4. During processing, the roll of film to be processed is placed on the film feeding roller 2 and then sequentially laid onto the film feeding component 3 and the laser cutting component 4. Controlling the operation of the film feeding component 3 drives the roll of film to move, thereby conveying the roll of film to the laser cutting component 4. When the position on the roll of film where the easy-tear line needs to be cut is aligned with the laser cutting component 4, the laser cutting component 4 is controlled to perform laser cutting on the roll of film, cutting the easy-tear line on the roll of film. The film with the easy-tear line processed is pulled away by the film pulling device of the packaging equipment, thus completing the processing of the easy-tear line on the film.

[0022] This laser cutting device for easy-tear lines on membrane products uses a laser to process easy-tear lines on the membrane material. It does not require contact with the membrane material, and therefore does not require a device to drive the laser cutting component 4. This simplifies the operation process of the equipment, thereby shortening the processing time for easy-tear lines and improving processing efficiency. In addition, laser processing eliminates the need to replace consumables, avoiding the hassle of replacing consumables and reducing processing costs.

[0023] The laser cutting assembly 4 includes a laser mounting frame 41, which is connected to the fixed base 1. The laser mounting frame 41 is equipped with an adjustment component, on which a laser head 42 is mounted. The laser head 42 emits a high-energy laser. The film feeding assembly 3 transports the roll film material below the laser head 42. The adjustment component adjusts the position of the laser head 42 on the laser mounting frame 41. During processing, the film feeding assembly 3 transports the roll film material below the laser head 42 and controls the laser head 42 to emit a high-energy laser. When the laser irradiates the roll film material, it melts and cuts the film, thus creating an easy-tear line. The adjustment component allows for timely adjustment of the laser head 42's position on the laser mounting frame 41, making it suitable for processing different types of products and improving the equipment's versatility.

[0024] Specifically, the adjustment assembly includes an adjustment base 43, a transverse guide rail 44 on the laser mounting bracket 41, a transverse slider 45 on the adjustment base 43, the transverse slider 45 slidingly engaging with the transverse guide rail 44, a locking limit block 46 on the adjustment base 43, and an adjustment knob 47 on the locking limit block 46. The adjustment knob 47 is used to adjust the engagement or disengagement of the locking limit block 46 with the transverse guide rail 44. Normally, when the adjustment knob 47 is tightened, the locking limit block 46 is locked and fixed with the transverse guide rail 44, thereby limiting and fixing the adjustment base 43 and the transverse guide rail 44. When it is necessary to adjust the transverse position of the laser head 42, the adjustment base 43 can be pushed by loosening the adjustment knob 47, allowing the transverse slider 45 and the locking limit block 46 to slide on the transverse guide rail 44 respectively. After adjusting to the appropriate position, the adjustment knob 47 can be tightened again.

[0025] In this embodiment, there are two laser heads 42 and two adjusting bases 43, and they are arranged in a one-to-one correspondence. By releasing the adjusting knob 47 and pushing the adjusting base 43 to move on the transverse guide rail 44, the gap between the two laser heads 42 can also be adjusted, thereby meeting the processing requirements of different types of products. Two laser heads 42 can also further improve processing efficiency; in other embodiments, the number of laser heads 42 can also be any other number.

[0026] The adjusting base 43 is equipped with a lifting adjusting block 48, which in turn is equipped with an adjusting handwheel 49. The laser head 42 is equipped with a lifting screw 410, which is slidably connected to the lifting adjusting block 48. Before processing, rotating the adjusting handwheel 49 drives the lifting screw 410 to slide on the lifting adjusting block 48, thereby adjusting the installation height of the laser head 42 on the laser mounting bracket 41. This allows the laser emitted by the laser head 42 to be focused on the film material fed by the film feeding assembly 3, enabling the cutting of easy-tear lines on the film material. Therefore, rotating the adjusting handwheel 49 allows the laser emitted by the laser head 42 to be focused on the roll film material, improving processing stability and ensuring a high yield rate.

[0027] To limit and guide the lifting and lowering movement of the laser head 42, multiple guide rods 411 are provided on the laser head 42. Guide sleeves 412 are respectively provided at corresponding positions on the adjusting base 43. One end of the guide rod 411 passes through the corresponding guide sleeve 412 and slides in cooperation with it. When the adjusting handwheel 49 is rotated, the guide rod 411 slides within the guide sleeve 412. The cooperation between the guide rod 411 and the guide sleeve 412 limits and guides the lifting and lowering direction of the laser head 42, thereby improving the accuracy of adjustment and ensuring the stability of processing.

[0028] The film feeding assembly 3 includes a film feeding roller 31, which is rotatably connected to the fixed base 1. The roll film can be laid onto the film feeding roller 31. A film feeding motor 32 is installed on the fixed base 1, and the output end of the film feeding motor 32 is connected to the film feeding roller 31. During operation, the roll film on the unloading roller 2 is stretched and laid onto the film feeding roller 31. By controlling the operation of the film feeding motor 32, the film feeding roller 31 is driven to rotate, which drives the roll film to move and transports the roll film to the area below the laser head 42 for easy-tear wire cutting processing.

[0029] To improve processing stability, a pressing cylinder 33 is installed on the fixed base 1. A pressing mounting frame 34 is provided on the output end of the pressing cylinder 33. The pressing mounting frame 34 is slidably connected to the fixed base 1. A rotatable pressing roller 35 is provided on the pressing mounting frame 34. The pressing cylinder 33 can drive the pressing roller 35 to move closer to or away from the film feeding roller 31. Before processing, the roll film on the film feeding roller 2 is stretched through the pressing roller 35 and the film feeding roller 31. Then, by controlling the pressing cylinder 33, the pressing mounting frame 34 can be driven to move the pressing roller 35 closer to the film feeding roller 31 until the pressing roller 35 abuts against the roll film, thereby clamping both sides of the roll film by the pressing roller 35 and the film feeding roller 31. The roll film is gripped by the pressure roller 35 so that when the film feeding motor 32 drives the film feeding roller 31 to rotate, the roll film can be stably pulled and thus transported to the processing position of the laser head 42.

[0030] To tighten the roll material module, multiple tension rollers 5 are installed on the fixed base 1, and the tension rollers 5 are rotatably connected to the fixed base 1. During processing, the roll material is stretched and laid onto each tension roller 5 in sequence. The tension rollers 5 can tighten the roll material on the fixed base 1, thereby ensuring the stability of the transmission and improving the yield of processed products.

[0031] A photoelectric sensor mounting bracket 6 is provided on the fixed base 1, and a detection sensor 7 is provided on the photoelectric sensor mounting bracket 6. The detection sensor 7 is used to detect the roll film fed by the film feeding assembly 3. Before processing, the roll film is pulled out from the unloading roller 2 and laid onto the feeding roller 31. It then passes under the detection sensor 7 and is laid under the laser head 42. During processing, the film feeding motor 32 drives the feeding roller 31 to pull the roll film. The detection sensor 7 detects the sensing position on the roll film. When the sensing position is detected, it means that a new roll film has been fed under the laser head 42. The detection sensor 7 then sends a feedback signal to control the laser head 42 to start emitting laser to process the roll film. By setting the detection sensor 7, the control accuracy can be improved, ensuring that the laser head 42 can process the tear line on each film.

[0032] Working principle:

[0033] First, the laser cutting device for the easy-tear line of the film product is installed on the packaging equipment, which is equipped with a film stretching device. Before processing, the roll of film is placed on the feeding roller 2, and then one end of the roll of film is stretched through the gap between the feeding roller 31 and the pressing roller 35, and then stretched and laid sequentially onto each tension roller 5, and simultaneously laid under the laser head 42, until it is stretched onto the film stretching device of the packaging equipment. Then, the pressing cylinder 33 is controlled to work, driving the pressing roller 35 to move closer to the feeding roller 31 until the pressing roller 35 abuts against the roll of film, thereby clamping both sides of the roll of film by the pressing roller 35 and the feeding roller 31.

[0034] During processing, the film-pulling device and film-feeding motor 32 of the packaging equipment are activated. The film-feeding motor 32 drives the film-feeding roller 31 to rotate, thereby pulling the roll material module towards the laser head 42. When the sensing position of the next roll of film passes the detection sensor 7, the detection sensor 7 will send a feedback signal, which will then activate the laser head 42 to cut the roll material module, creating an easy-tear line on the roll of film. The processed film is then pulled away by the film-pulling device of the packaging equipment. This process is repeated to achieve continuous processing.

[0035] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A laser cutting device for easy-tear lines on membrane products, characterized in that: The device includes a fixed base, on which a film feeding roller, a film feeding assembly, and a laser cutting assembly are provided. The film feeding roller is rotatably connected to the fixed base. The film feeding roller is used to place roll film material, and the roll film material can be laid onto the film feeding assembly and the laser cutting assembly. The film feeding assembly is used to feed film material onto the laser cutting assembly. The laser cutting assembly includes a laser mounting frame connected to the fixed base. The laser mounting frame is equipped with an adjustment component and a laser head. The film feeding assembly can transport the film material below the laser head, and the adjustment component can adjust the position of the laser head on the laser mounting frame.

2. The laser cutting device for easy-tear lines of membrane products according to claim 1, characterized in that: The adjustment assembly includes an adjustment fixing seat, a transverse guide rail on the laser mounting bracket, a transverse slider on the adjustment fixing seat, the transverse slider being slidably engaged with the transverse guide rail, a engagement limiting block on the adjustment fixing seat, and an adjustment knob on the engagement limiting block for adjusting the engagement or disengagement of the engagement limiting block with the transverse guide rail.

3. The laser cutting device for easy-tear lines of membrane products according to claim 2, characterized in that: The adjusting base is provided with a lifting adjustment block, the lifting adjustment block is provided with an adjustment handwheel, and the laser head is provided with a lifting screw. The lifting screw is slidably connected to the lifting adjustment block, and the adjustment handwheel can drive the lifting screw to slide on the lifting adjustment block.

4. The laser cutting device for easy-tear lines of film products according to claim 3, characterized in that: The laser head is provided with multiple guide rods, and the adjustment and fixing base is provided with guide sleeves at corresponding positions of the guide rods. One end of the guide rod passes through the corresponding guide sleeve and slides in cooperation with the guide sleeve.

5. The laser cutting device for easy-tear lines of membrane products according to claim 1, characterized in that: There are two laser heads.

6. The laser cutting device for easy-tear lines of film products according to any one of claims 1-5, characterized in that: The film feeding assembly includes a film feeding roller, which is rotatably connected to the fixed base. Roll film can be laid onto the film feeding roller. The fixed base is equipped with a film feeding motor, and the output end of the film feeding motor is connected to the film feeding roller.

7. The laser cutting device for easy-tear lines of membrane products according to claim 6, characterized in that: The fixed base is equipped with a pressing cylinder, and the output end of the pressing cylinder is equipped with a pressing mounting frame. The pressing mounting frame is slidably connected to the fixed base. The pressing mounting frame is rotatably equipped with a pressing roller. The pressing cylinder can drive the pressing roller to move closer to or further away from the film feeding roller.

8. The laser cutting device for easy-tear lines of film products according to claim 6, characterized in that: The fixed base is provided with multiple tension rollers, and the tension rollers are rotatably connected to the fixed base.

9. The laser cutting device for easy-tear lines of membrane products according to claim 8, characterized in that: The mounting base is equipped with a photoelectric sensor mounting bracket, and the photoelectric sensor mounting bracket is equipped with a detection sensor, which is used to detect the roll film material fed by the film feeding assembly.

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