A laser slotting structure and method for a cartridge sheet

Abstract

The application provides a laser slotting structure and method for a box sheet, relates to the technical field of laser slotting, and the structure comprises a bearing table for bearing the box sheet and a function frame arranged above the bearing table. The function frame is provided with a laser emitter. The bearing table comprises a movable plate and a weighter arranged on the movable plate and used for bearing the box sheet. The function frame is provided with a controller used for electrically connecting with the laser emitter. The weighter and the movable plate are electrically connected with the controller. When the laser emitter slots the box sheet, the controller acquires the displacement distance and the mass change value of the box sheet, so as to adjust the power value of the laser emitter. The application has the advantages of simple structure, adoption of the laser slotting technology, slotting on the back of the box sheet, slotting at a suitable depth according to different specifications of the box sheet, difficulty of bulging of the back of the box sheet when the box sheet is folded, good right-angle forming effect of the front of the box sheet, suitability for various large-thickness hard box sheets, and convenient popularization and application.

Description

Technical Field

[0001] This invention relates to the field of laser grooving technology, and in particular, to a laser grooving structure and method for wafer assemblies. Background Technology

[0002] The finished cigarettes usually need to be packaged in cigarette boxes for neat sale; traditional cigarette boxes are usually made by cutting cardboard (box pieces) according to the die lines of the cigarette box model, and then folding the cardboard (box pieces) with corresponding creases to form the cigarette box structure.

[0003] However, most existing cigarette boxes use 240g paper for packaging. Due to the thinness of the cardboard, the cigarette box has poor stiffness and texture after folding and is easily deformed. To avoid deformation, the common approach is to increase the thickness of the cardboard, using paper of 350g or more to enhance the overall strength and stiffness of the cigarette box. However, increasing the thickness of the cardboard makes the lid of the folded cigarette box prone to wrinkles and bulges, affecting the appearance of the cigarette box. Therefore, the design of thicker box sheets to prevent bulging is receiving increasing attention. For example, Chinese utility model patent CN218143385U provides a cigarette box that includes a box part and a lid. The box part includes a front wall, a bottom wall, a rear wall, a first box side wall, and a second box side wall connected in sequence. The lid includes a lid rear wall, a lid top wall, a lid front wall, a first lid side wall, and a second lid side wall connected in sequence. The side walls and front wall of the first box, the side walls and rear wall of the second box, the front wall, the bottom wall, and the rear wall are all connected by fold lines. Similarly, the side walls and rear wall of the first lid, the side walls and front wall of the second lid, the rear wall, the top wall, and the front wall are all connected by fold lines. This cigarette box application increases the stiffness of the formed cigarette box by increasing the thickness of the cardboard, making it less prone to deformation. Simultaneously, the double-layer structure on the front of the lid is eliminated, removing the inner lid piece from the double-layer structure. This effectively avoids problems such as wrinkles and bulges at the folding point when the inner lid piece is folded due to excessive cardboard thickness, which would negatively impact the cigarette box's appearance.

[0004] However, the above-mentioned cigarette box structure still has the following problems: the structure is complex. The stiffness of the cigarette box is improved by increasing the thickness of the cigarette box forming cardboard. The folding is still aided by creases. Due to the large thickness of the cigarette box sheet, the back (inner side) is still prone to bulging when the sheet is folded. The right angle of the front (outer side) is not easy to form and inevitably has a certain curvature, which prevents the widespread application of rigid sheet.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient laser grooving structure for wafers. Summary of the Invention

[0006] The purpose of this invention is to provide a laser grooving structure for box sheets. The structure is simple and uses laser grooving technology to groove the back of the box sheet. The groove depth can be adjusted according to different box sheet specifications, so that the back of the box sheet is not prone to bulging when folded, and the right angle forming effect on the front is good. It can be used for various thick rigid box sheets, which is convenient for large-scale promotion and application.

[0007] To achieve the above objectives, the present invention employs the following technical solution:

[0008] A laser grooving structure for cassette inserts includes a support platform for supporting the cassette inserts and a functional frame disposed above the support platform. A laser emitter is disposed on the functional frame. The support platform includes a movable plate and a weighing device disposed on the movable plate for supporting the cassette inserts. A controller for electrically connecting to the laser emitter is disposed within the functional frame. The weighing device and the movable plate are both electrically connected to the controller, so that when the laser emitter grooves the cassette inserts, the controller acquires the displacement distance and mass change value of the cassette inserts, thereby adjusting the power value of the laser emitter.

[0009] As a preferred embodiment of the present invention, the functional frame is provided with a camera for extending toward the direction of the cassette, and the camera is electrically connected to the controller.

[0010] As a preferred embodiment of the present invention, the upper surface layer of the weighing device is a fireproof and heat-insulating component.

[0011] As a preferred embodiment of the present invention, the camera is an isotope camera.

[0012] As a preferred embodiment of the present invention, the end of the functional frame is provided with an air vent extending obliquely toward the box plate and a gas storage cavity communicating with the air vent, wherein a non-combustible gas is provided in the gas storage cavity.

[0013] As a preferred embodiment of the present invention, the end of the functional frame away from the blower is provided with an air intake that extends obliquely toward the box plate.

[0014] As a preferred embodiment of the present invention, a lifting frame is provided below the movable plate.

[0015] As a preferred embodiment of the present invention, the upper end of the functional frame is provided with a drive shaft for driving the functional frame to rotate, and the laser emitter is coaxially arranged with the drive shaft.

[0016] The present invention also provides a method for laser-grooving structures for wafers, comprising the following steps:

[0017] S1: Place the weighing device containing the box pieces on the movable plate and adjust the laser emitter to align with the box pieces;

[0018] S2: Turn on the laser emitter and the movable plate, so that the movable plate moves the box piece, thereby performing laser grooving on the upper side of the box piece;

[0019] S3: At predetermined intervals, obtain the displacement distance of the movable plate and the mass change of the box piece, calculate the slot depth of the box piece, and adjust the power of the laser emitter;

[0020] S4: Once the box piece has been slotted, remove it from the box.

[0021] As a preferred embodiment of the present invention, when performing step S3, the material of the box sheet and the width of the slot are also obtained by the camera. Combined with the displacement distance and the mass change of the box sheet, the slot depth of the box sheet is calculated, and the power of the laser emitter is adjusted.

[0022] The beneficial effects of the laser grooving structure and method for box sheets of the present invention are as follows: the structure is simple, the laser grooving technology is used to groove the back of the box sheet, and the grooving depth can be appropriate according to the different specifications of the box sheet, so that the back of the box sheet is not prone to bulging when folded, and the right angle forming effect on the front is good. It can be used for various thick rigid box sheets, which is convenient for large-scale promotion and application. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of one embodiment of a laser grooving structure for a cassette assembly according to the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of another embodiment of the laser grooving structure for a cassette according to the present invention;

[0025] Figure 3 This is a schematic diagram of a cassette slotting structure according to an embodiment of the present invention.

[0026] In the diagram: 1. Support platform, 12. Movable plate, 11. Weighing device, 2. Functional frame, 21. Laser emitter, 22. Camera, 23. Air vent, 24. Air intake, 25. Drive shaft, 3. Sheet, 31. Sheet slot. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement and steps of the modules and steps set forth in these embodiments do not limit the scope of the invention.

[0029] At the same time, it should be understood that, for ease of description, the process shown in the attached diagram is not performed in isolation, but rather involves multiple steps that overlap.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and systems known to a person skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the license specification.

[0033] Example 1: As Figures 1 to 3 The image shown is merely one embodiment of the present invention. A laser grooving structure for a cassette sheet includes a support platform 1 for supporting the cassette sheet 3 and a functional frame 2 disposed above the support platform 1. A laser emitter 21 is disposed on the functional frame 2. The support platform 1 includes a movable plate 12 and a weighing device 11 disposed on the movable plate 12 for supporting the cassette sheet 3. A controller for electrically connecting to the laser emitter 21 is disposed within the functional frame 2. The weighing device 11 and the movable plate 12 are both electrically connected to the controller, so that when the laser emitter 21 grooves the cassette sheet 3, the controller acquires the displacement distance and mass change value of the cassette sheet 3, thereby adjusting the power value of the laser emitter 21.

[0034] In this invention, to improve the stiffness of the cigarette box forming process, it is necessary to increase the thickness of the cigarette box forming cardboard, replacing the commonly used 240g paper with box sheet paper of 350g or more. However, due to the excessive thickness of this type of box sheet paper, if conventional crease methods are used to help cover it, the inside of the cigarette box will still bulge after folding, and the outside of the cigarette box will have a certain arc angle when bent, rather than a right angle. Based on this, in order to reduce the inconvenience of bending thick box sheet paper, this invention is conceived to groove the bending point on the back of the box sheet paper, reducing the amount of material at the bending point, so that the inside of the box sheet at the bending point does not bulge, and the outside can also be formed at a right angle.

[0035] During the process of slotting the back of the box sheet, the slotting depth needs to be controlled. If the slotting is too shallow, there will still be small bulges at the bend of the box sheet, and the outer right angle will not be well formed. Conversely, if the slotting is too deep, the connection at the bend of the box sheet will be poor, and the box sheet will be easily damaged. Therefore, the slotting depth of the box sheet needs to be controlled within a predetermined range. After multiple verifications, the slotting depth of the box sheet should be between 32% and 47% of the overall thickness of the box sheet, and this ratio varies depending on the thickness of the box sheet.

[0036] Grooving is performed on the back of the cassette paper along the fold. There are contact grooving and non-contact grooving methods. Contact grooving is mainly cut with a cutting tool, while non-contact grooving is mainly laser grooving. Since the limit adjustment of contact grooving is too complicated, the height of the cutting tool needs to be adjusted every time the cassette paper is changed, which greatly reduces the grooving efficiency. Therefore, this application chooses to use laser grooving to groov the back of the cassette paper.

[0037] In this application, the cassette 3 is placed on the support platform 1, and the cassette 3 is slotted by the laser emitter 21 on the functional frame 2 above the support platform 1. This is the most basic laser slotting structure.

[0038] Based on this, since the slot 31 is made along the bend of the box piece 3, such as Figure 3 As shown, the laser emitter 21 needs to be displaced relative to the cassette 3 to create a long cassette slot 31. In this application, the laser emitter 21 itself has high precision, so it is best to keep the laser emitter 21 stationary and let the cassette 3 be displaced relative to the laser emitter 21 under the drive of the support platform 1.

[0039] Furthermore, during the process of the laser emitter 21 slotting the cassette 3, the slotted area of ​​the cassette 3 loses some mass due to laser burning, forming a cassette groove 31. In order to identify the depth of the slot, it is only necessary to obtain the mass loss of the cassette 3.

[0040] The support platform 1 includes a movable plate 12 and a weighing device 11 disposed on the movable plate 12 for supporting the box piece 3. The box piece 3 is disposed on the weighing device 11, and the weighing device 11 weighs the box piece 3. The weighing device 11 is disposed on the movable plate 12 and moves together with the box piece 3 under the drive of the movable plate 12, thereby opening a long strip box piece groove 31.

[0041] Finally, the functional frame 2 is equipped with a controller for electrical connection with the laser emitter 21. The controller controls the power of the laser emitter 21, thereby controlling the grooving depth on the box piece 3. The weighing device 11 and the movable plate 12 are both electrically connected to the controller. So, after the laser emitter 21 is turned on, when grooving the box piece 3, the movable plate 12 sends its own movement distance (i.e., the displacement distance of the box piece 3) to the controller. At the same time, the weighing device 11 sends the mass change value of the weighed box piece 3 to the controller. The controller calculates the mass loss of the box piece 3 per unit distance, and can calculate the grooving depth of the box piece 3. According to the required grooving depth, the power value of the laser emitter 21 is adjusted.

[0042] Here, calculating the groove depth requires certain prerequisites: the laser burning width (grooving width) of the laser emitter 21 must be known and the material of the box 3 must be known. Only then can the groove depth of the box 3 be calculated from the mass loss per unit distance of the box 3.

[0043] Based on this, the functional frame 2 is provided with a camera 22 for extending toward the box piece 3. The camera 22 is electrically connected to the controller. The number of cameras 22 can be one or more, one of which is an isotope camera. The slot width of the box piece 3 is obtained through one of the cameras 22, and the material of the box piece 3 is obtained through the isotope camera. Finally, the slot depth of the box piece 3 is calculated by combining the slot width, the material of the box piece, and the mass lost by the box piece 3 per unit distance.

[0044] Moreover, since the grooving is done by laser burning, the actual mass loss of the cassette 3 is not equal to the grooving volume multiplied by the density of the cassette 3. Some cassette material adheres to the edge of the grooving, resulting in a higher density at the edge of the grooving. This makes the actual mass loss during grooving slightly less than the grooving volume multiplied by the density of the cassette 3. It is necessary to conduct experiments in advance to obtain the corresponding relationship between the mass loss per unit distance of the cassette 3 and the grooving depth of the cassette 3, and then store it in the controller.

[0045] It should be noted that due to the different thicknesses and materials of different cassettes 3, the ratio of their slotting depth (to the thickness of the cassette itself) is also different. Therefore, it is necessary to send the type of cassette 3 that needs to be slotted to the controller in advance. The controller will then adjust the power value of the laser emitter 21 based on this type and the slotting measurement data.

[0046] Example 2, still as Figures 1 to 3 As shown, this is only one embodiment of the present invention. Based on the first embodiment, in the laser grooving structure for box sheet of the present invention, the upper surface layer of the weighing device 11 is a fireproof and heat-insulating component, and the area of ​​the upper surface layer of the weighing device 11 is larger than the area of ​​the box sheet 3, so that when the laser grooving reaches the edge of the box sheet 3, the weighing device 11 will not be burned or damaged.

[0047] In addition, since high temperatures are generated during the laser grooving process, and the box sheet is a flammable material, especially in a space where a large amount of box sheet is stored, the fire hazard is extremely high. In order to avoid fire when grooving the box sheet 3, an air vent 23 extending obliquely towards the box sheet 3 and a gas storage chamber communicating with the air vent 23 are provided at the end of the functional frame 2. The gas storage chamber is filled with non-flammable gas, such as nitrogen, carbon dioxide or helium, to reduce the risk of combustion at the grooving point.

[0048] Furthermore, the air vent 23 is electrically connected to the camera 22 via a controller. Among the multiple cameras 22, there is an infrared camera used to sense the temperature at the slot. If the temperature at the slot is higher than a certain threshold, the air vent 23 will blow out non-flammable gas to reduce the risk of combustion at the slot.

[0049] Correspondingly, the end of the functional frame 2 away from the air outlet 23 is provided with an air intake 24 that extends obliquely toward the box plate 3. In addition to sucking back and collecting the balloons inflated by the air outlet 23, the air intake 24 can also create airflow to suck out the ash of the box plate 3 after laser burning, preventing the ash from remaining on the box plate 3 and affecting the quality of the box plate.

[0050] Furthermore, it is important to note that there are requirements for the blowing direction of the blower 23 and the suction direction of the suction port 24. The slotted area of ​​the box sheet needs to be located between the blower 23 and the suction port 24, and the line connecting the blower 23 and the suction port 24 should preferably be parallel to the long strip of the slotted area of ​​the box sheet. This ensures that when the non-flammable gas is used to retard the slotted area of ​​the box sheet, it should ideally pass through the slotted area from the unslotted side and blow towards the side of the box sheet 31 where the slot has already been opened. The upper end of the functional frame 2 is provided with a drive shaft 25 for driving the functional frame 2 to rotate, thereby changing the position of the blower 23 and the suction port 24. The laser emitter 21 is coaxially arranged with the drive shaft 25 and is located in the middle of the blower 23 and the suction port 24. When the drive shaft 25 rotates, the entire blower 23 and the suction port 24 rotate around the laser emitter 21, thereby blowing air onto the box sheet 31 in different directions, and the laser emitter 21 does not shift.

[0051] Finally, a lifting frame is provided below the movable plate 12 for leveling the movable plate 12.

[0052] Example 3 is merely one embodiment of the present invention. Based on any of the above embodiments, the present invention also provides a method for laser-grooved structures for wafers, comprising the following steps:

[0053] S1: Place the weighing device containing the box pieces on the movable plate and adjust the laser emitter to align with the box pieces;

[0054] S2: Turn on the laser emitter and the movable plate, so that the movable plate moves the box piece, thereby performing laser grooving on the upper side of the box piece;

[0055] S3: At predetermined intervals, obtain the displacement distance of the movable plate and the mass change of the box piece, calculate the slot depth of the box piece, and adjust the power of the laser emitter;

[0056] S4: Once the box piece has been slotted, remove it from the box.

[0057] In this invention, during step S3, the material of the box sheet and the width of the slot are obtained by the camera. Combined with the displacement distance and the mass change of the box sheet, the slot depth of the box sheet is calculated, and the power of the laser emitter is adjusted.

[0058] This invention discloses a laser grooving structure and method for box panels. The structure is simple and uses laser grooving technology to groove the back of the box panel. The grooving depth can be adjusted according to different box panel specifications, making it less likely for the back of the box panel to bulge when folded, and ensuring good right-angle forming effect on the front. It can be used for various thick rigid box panels, facilitating its widespread application.

[0059] This invention is not limited to the specific embodiments described above, and various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made to the above embodiments based on the technical essence of this invention should be included within the scope of protection of this invention.

Claims

1. A laser grooving structure for wafer cassettes, characterized in that: The device includes a support platform (1) for carrying the box piece (3) and a functional frame (2) disposed above the support platform (1). A laser emitter (21) is disposed on the functional frame (2). The support platform (1) includes a movable plate (12) and a weighing device (11) disposed on the movable plate (12) for carrying the box piece (3). A controller for electrically connecting to the laser emitter (21) is disposed inside the functional frame (2). The weighing device (11) and the movable plate (12) are both electrically connected to the controller, so that when the laser emitter (21) slots the box piece (3), the controller obtains the displacement distance and mass change value of the box piece (3), thereby adjusting the power value of the laser emitter (21).

2. The laser grooving structure for a cassette as described in claim 1, characterized in that: The functional frame (2) is provided with a camera (22) that extends toward the box piece (3), and the camera (22) is electrically connected to the controller.

3. The laser grooving structure for a cassette as described in claim 1, characterized in that: The upper surface of the weighing device (11) is a fireproof and heat-insulating component.

4. The laser grooving structure for a cassette as described in claim 2, characterized in that: The camera (22) is an isotope camera.

5. The laser grooving structure for a cassette according to claim 1, characterized in that: The end of the functional frame (2) is provided with an air inlet (23) extending obliquely toward the box plate (3) and a gas storage chamber communicating with the air inlet (23), wherein a non-combustible gas is provided in the gas storage chamber.

6. The laser grooving structure for a cassette according to claim 5, characterized in that: The functional frame (2) has an air intake (24) that extends at an angle toward the box plate (3) at the end away from the blower (23).

7. The laser grooving structure for a wafer according to claim 1, characterized in that: A lifting frame is provided at the movable plate (12).

8. The laser grooving structure for a cassette according to claim 1, characterized in that: The upper end of the functional frame (2) is provided with a drive shaft (25) for driving the functional frame (2) to rotate, and the laser emitter (21) is coaxially arranged with the drive shaft (25).

9. A grooving method for a laser grooving structure for a cassette according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1: Place the weighing device containing the box pieces on the movable plate and adjust the laser emitter to align with the box pieces; S2: Turn on the laser emitter and the movable plate, so that the movable plate moves the box piece, thereby performing laser grooving on the upper side of the box piece; S3: At predetermined intervals, obtain the displacement distance of the movable plate and the mass change of the box piece, calculate the slot depth of the box piece, and adjust the power of the laser emitter; S4: Once the box piece has been slotted, remove it from the box.

10. A grooving method for a laser grooving structure for a cassette according to claim 9, characterized in that: During step S3, the material and slot width of the box sheet are also obtained through the camera. Combined with the displacement distance and the mass change of the box sheet, the slot depth of the box sheet is calculated, and the power of the laser emitter is adjusted.

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