Paper meal box film coating processing and cutting device

Abstract

The utility model relates to the technical field of paper lunch box processing, in particular to a paper lunch box film coating processing and cutting device. According to the technical scheme, a table plate is installed on a supporting frame, longitudinal guide rails are installed on the two sides of the table plate, first sliding blocks are installed on the longitudinal guide rails in a sliding mode, fixing rods are installed on the table plate through the longitudinal guide rails and the first sliding blocks in a sliding mode, and clamping jaws are installed on the fixing rods; a fixing frame is erected and installed above the side, located on the clamping jaw, of the supporting frame, a guide rod is installed on the side, away from the clamping jaw, of the supporting frame, and cutting heads are installed on the fixing frame and the guide rod. The cutting head can freely move in a two-dimensional plane through an orthogonal movement system formed by the transverse guide rail and the longitudinal guide rail, so that films with different sizes and shapes can be flexibly cut; meanwhile, through the combined design of the rotating ring and the air cylinder connecting rod mechanism, the cutting-in angle and pressure of the blade can be accurately controlled, and the film laminating machine is suitable for film laminating of various materials.

Description

A paper lunch box lamination and cutting device Technical Field

[0001] This utility model relates to the field of paper lunch box processing technology, specifically to a paper lunch box lamination and cutting device. Background Technology

[0002] Currently, in the production and processing of paper and plastic lunch boxes, after thermoforming, most of the cutting is done manually on cutting equipment. This process is labor-intensive and has low production efficiency.

[0003] A search revealed that patent application CN202020868993.5 discloses a fully automatic cutting device for paper-plastic lunch boxes. While this device achieves fully automatic material handling, cutting, and output through a bottom mold, upper die, and feeding mechanism, it can only cut lunch boxes of a single size and cannot flexibly adjust the cutting size to meet different specifications. Furthermore, its cutting device uses a fixed die structure, making it difficult to handle the cutting needs of different laminated materials, and the die-changing process is cumbersome, resulting in long downtime. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a paper lunch box laminating and cutting device, which solves the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] A paper lunch box lamination and cutting device includes a support frame;

[0007] A table is mounted on the support frame, and longitudinal guide rails are mounted on both sides of the table. A first slider is slidably mounted on the longitudinal guide rails. A fixing rod is slidably mounted on the table via the longitudinal guide rails and the first slider. A gripper is mounted on the fixing rod. A fixing frame is mounted on the support frame above one side of the gripper. A guide rod is mounted on the side of the support frame away from the gripper. A cutting head is mounted on both the fixing frame and the guide rod.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the cutting head on the guide rod makes longitudinal cuts to the film, and the cutting head on the fixing frame makes transverse cuts to the film.

[0010] The beneficial effects of adopting the above-mentioned further solutions are:

[0011] The dual-cutting-head design, which allows for collaborative cutting, enables simultaneous or step-by-step cutting of the coated material in both longitudinal and transverse directions, eliminating the need for manual adjustment of the cutting direction and significantly improving processing efficiency. Simultaneously, the independently controlled cutting head can precisely adjust the cutting depth according to the coated material and thickness, avoiding the accumulation of errors caused by multiple adjustments with a traditional single cutting head and ensuring the accuracy of the cut dimensions.

[0012] Furthermore, a first motor is installed on the support frame, and the first motor is connected to the transmission rod via a synchronous belt. A belt is installed on the longitudinal guide rail, and both ends of the transmission rod are connected to the belt of the longitudinal guide rail. The first slider is fixedly installed on the belt.

[0013] The beneficial effects of adopting the above-mentioned further solutions are:

[0014] The first motor drives the transmission rod via a synchronous belt, enabling synchronized operation of the belts on the dual longitudinal guide rails and ensuring uniform force on the grippers during movement. Compared to traditional single-motor, single-belt drives, this design effectively avoids gripper shift caused by uneven driving forces on both sides, improving stability during the lamination stretching process and reducing wrinkles and uneven tension issues.

[0015] Furthermore, after the gripper clamps and fixes the film, the film is pulled by sliding on the table through the cooperation of the first slider, belt and longitudinal guide rail.

[0016] The beneficial effects of adopting the above-mentioned further solutions are:

[0017] The linear motion of the grippers on the longitudinal guide rail, combined with precise control of the belt drive, applies stable and adjustable tension to the coating. This mechanical stretching method effectively eliminates wrinkles on the coating surface, ensuring the coating is flat and taut before cutting, significantly improving the straightness and edge quality of subsequent cuts. It is especially suitable for precision coating processes where high flatness is required.

[0018] Furthermore, a transverse guide rail is also installed on the support frame, and a belt is also provided on the transverse guide rail. A first slider is provided on the back of the fixing frame, and the fixing frame slides on the transverse guide rail through the first slider and the belt.

[0019] The beneficial effects of adopting the above-mentioned further solutions are:

[0020] The horizontal and vertical guide rails form an orthogonal motion system, allowing the cutting head on the fixed frame to move freely in a two-dimensional plane. This design enables the device to cut laminated products of different sizes and shapes. By adjusting the horizontal cutting position, it can adapt to the needs of various specifications of paper lunch boxes, achieving multi-purpose functionality and reducing equipment procurement costs for enterprises.

[0021] Furthermore, a second motor is installed at one end of the transverse guide rail, and the belt of the transverse guide rail is driven by the second motor.

[0022] The beneficial effects of adopting the above-mentioned further solutions are:

[0023] An independent second motor drive ensures more precise motion control of the transverse guide rail, enabling stepless speed regulation and accurate positioning. Compared to a single-motor-driven design with multiple mechanisms, this solution avoids power transmission losses and interference, resulting in faster response and more accurate positioning of the mounting bracket during transverse movement. It is particularly suitable for small-batch, multi-specification production scenarios that require frequent adjustments to the cutting position.

[0024] Furthermore, the cutting head includes a mounting frame, on which a rotating ring is rotatably mounted. A cylinder is mounted on one side of the mounting frame, and the cylinder is connected to a connecting frame via a connecting rod. The connecting frame is located on the rotating ring, and a cutting head is mounted on the connecting frame. A blade is clamped and fixed between the cutting head and the connecting frame.

[0025] The beneficial effects of adopting the above-mentioned further solutions are:

[0026] The combined design of the rotating ring and cylinder linkage mechanism enables the blade to achieve multi-angle cutting and depth adjustment. The linear motion of the cylinder is converted into the circular motion of the rotating ring through the linkage, which can precisely control the cutting angle and pressure of the blade to adapt to the cutting needs of different coated materials. In addition, the clamping structure between the blade head and the connecting frame facilitates quick blade replacement and maintenance, reducing equipment downtime.

[0027] This utility model provides a paper lunch box laminating and cutting device. It has the following beneficial effects:

[0028] By coordinating components such as the longitudinal guide rail, the first slider, the belt, and the timing belt, precise sliding of the fixing rod and the gripper can be achieved, thereby accurately pulling and positioning the film, ensuring the positional accuracy of the film during processing, and improving cutting accuracy. For example, the first motor is connected to the transmission rod via the timing belt, and the transmission rod is in turn connected to the belt on the longitudinal guide rail, allowing the first slider to slide stably on the longitudinal guide rail, ensuring precise control of the gripper's pulling force and position on the film.

[0029] The device is equipped with multiple cutting heads, mounted on a fixed frame and guide rod, respectively, enabling simultaneous longitudinal and transverse cutting of the film, thus improving cutting efficiency. Furthermore, the cutting head's structural design is rational; through the coordinated action of components such as cylinders, connecting rods, and connecting frames, the movement of the cutter head and blades can be flexibly controlled, achieving fast and accurate cutting. For example, the cylinder pushes the connecting frame on a rotating ring via the connecting rod, thereby driving the cutter head and blades to cut the film. This design allows for adjustment of the cutting depth and force as needed.

[0030] The design of the transverse guide rail, the second motor, and the fixing frame allows the fixing frame to slide on the transverse guide rail. This enables the lateral position of the cutting head to be adjusted according to the different sizes of paper food boxes being laminated, increasing the versatility and flexibility of the device. Operators can use the second motor to drive the belt, moving the fixing frame to the appropriate position on the transverse guide rail to meet the cutting requirements of different laminated specifications, based on actual production needs. Attached Figure Description

[0031] The accompanying drawings, which are provided to further illustrate the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0032] In the attached diagram:

[0033] Figure 1 is a schematic diagram of the front view of this utility model;

[0034] Figure 2 is a rear view of the present invention.

[0035] Figure 3 is a schematic diagram of the main appearance of the fixing frame of this utility model;

[0036] Figure 4 is a bottom view of the mounting bracket of this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. First motor; 10. Support frame; 11. Table; 12. Gripper; 13. Transmission rod; 14. Synchronous belt; 2. Fixing frame; 3. Cutting head; 301. Mounting frame; 302. Rotating ring; 303. Connecting frame; 304. Cutting head; 305. Connecting rod; 306. Cylinder; 307. Blade; 4. Guide rod; 5. Second motor; 6. Fixing rod; 7. First slider; 8. Belt; 9. Longitudinal guide rail. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Please refer to Figures 1 to 4 for the embodiments provided by this utility model:

[0041] Example 1

[0042] A paper lunch box laminating and cutting device includes a support frame 10, a table 11 mounted on the support frame 10, longitudinal guide rails 9 mounted on both sides of the table 11, a first slider 7 slidably mounted on the longitudinal guide rails 9, a fixed rod 6 slidably mounted on the table 11 via the longitudinal guide rails 9 and the first slider 7, a first motor 1 mounted on the support frame 10, the first motor 1 being connected to a transmission rod 13 via a synchronous belt 14, a belt 8 mounted on the longitudinal guide rails 9, both ends of the transmission rod 13 being connected to the belt 8 of the longitudinal guide rails 9, the first slider 7 being fixedly mounted on the belt 8, and the first motor 1 driving the transmission rod 13 via the synchronous belt 14 to achieve synchronous operation of the belt 8 on the two longitudinal guide rails 9, ensuring that the gripper 12 is subjected to uniform force during movement. Compared to the traditional single-motor single-belt drive, this design can effectively avoid the deviation of the gripper 12 caused by uneven driving force on both sides, improve the stability during the film stretching process, and reduce wrinkles and uneven tension problems. The gripper 12 is installed on the fixing rod 6. After the gripper 12 clamps and fixes the film, it slides on the table 11 through the cooperation of the first slider 7, belt 8 and longitudinal guide rail 9 to stretch the film. The linear movement of the gripper 12 on the longitudinal guide rail 9, combined with the precise control of the belt 8 drive, can apply a stable and adjustable tension to the film. This mechanical stretching method effectively eliminates wrinkles on the coating surface, ensuring the coating is flat and taut before cutting. This significantly improves the straightness and edge quality of subsequent cuts, making it particularly suitable for precision coating processes requiring high flatness. A support frame 10 is mounted above one side of the gripper 12, with a fixed frame 2 installed on it. A guide rod 4 is mounted on the side of the support frame 10 opposite to the gripper 12. Both the fixed frame 2 and the guide rod 4 are equipped with cutting heads 3. The cutting head 3 on the guide rod 4 cuts the coating longitudinally, while the cutting head 3 on the fixed frame 2 cuts the coating transversely. This collaborative dual-cutting head 3 design allows for simultaneous or step-by-step cutting of the coating material in both longitudinal and transverse directions, eliminating the need for manual adjustment of the cutting direction and significantly improving processing efficiency. Simultaneously, the independently controlled cutting head 3 can precisely adjust the cutting depth according to the coating material and thickness, avoiding the error accumulation caused by multiple adjustments with a traditional single cutting head 3, thus ensuring the accuracy of the cutting dimensions.

[0043] Example 2

[0044] To enhance the adaptability of the device to different sizes of paper lunch boxes and meet multi-functional cutting needs, as exemplarily shown in Figures 1 to 4, this utility model further includes: a transverse guide rail installed on the support frame 10, and a belt 8 also provided on the transverse guide rail; a first slider 7 is provided on the back of the fixing frame 2; the fixing frame 2 slides on the transverse guide rail via the first slider 7 and the belt 8; the transverse guide rail and the longitudinal guide rail 9 form an orthogonal motion system, allowing the cutting head 3 on the fixing frame 2 to move freely in a two-dimensional plane. This design gives the device the ability to cut different sizes and shapes of film-coated paper lunch boxes. By adjusting the transverse cutting position, it can adapt to the needs of various sizes of paper lunch boxes, achieving multi-purpose functionality and reducing equipment procurement costs for enterprises. A second motor 5 is installed at one end of the transverse guide rail, and the belt 8 of the transverse guide rail is driven by the second motor 5. The independent drive of the second motor 5 ensures more precise motion control of the transverse guide rail, enabling stepless speed regulation and precise positioning. Compared to a design that uses a single motor to drive multiple mechanisms, this solution avoids losses and interference during power transmission, making the fixed frame 2 respond faster and position more accurately when moving laterally. It is particularly suitable for small-batch, multi-specification production scenarios that require frequent adjustments to the cutting position.

[0045] Example 3

[0046] To improve the cutting head's ability to process films of different materials and reduce equipment maintenance costs, as exemplarily shown in Figures 1 to 4, this utility model further includes: a cutting head 3 comprising a mounting frame 301, on which a rotating ring 302 is rotatably mounted; a cylinder 306 is mounted on one side of the mounting frame 301; the cylinder 306 is connected to a connecting frame 303 via a connecting rod 305; the connecting frame 303 is located on the rotating ring 302; a cutting head 304 is mounted on the connecting frame 303; and a blade 307 is clamped and fixed between the cutting head 304 and the connecting frame 303. The combined design of the rotating ring 302 and the cylinder 306 and connecting rod 305 mechanism enables the blade 307 to achieve multi-angle cutting and depth adjustment. The linear motion of the cylinder 306 is converted into the circular motion of the rotating ring 302 through the connecting rod 305, which can precisely control the cutting angle and pressure of the blade 307 to adapt to the cutting needs of films of different materials. In addition, the clamping structure of the cutter head 304 and the connecting frame 303 facilitates the quick replacement and maintenance of the blade 307, reducing equipment downtime.

[0047] Working principle:

[0048] The coating material is placed on the tabletop 11, and the grippers 12 clamp and fix the edges of the coating. At this time, the first motor 1 starts, driving the transmission rod 13 to rotate via the synchronous belt 14. The two ends of the transmission rod 13 are connected to the belt 8 on the longitudinal guide rail 9, driving the belt 8 to rotate. Since the first slider 7 is fixed on the belt 8, the grippers 12 slide along the longitudinal guide rail 9 with the first slider 7, pulling the coating horizontally to make it flat and taut.

[0049] After the film is tensioned, the cutting head 3 on the guide rod 4 begins to work. The cylinder 306 pushes the connecting rod 305, causing the connecting frame 303 to move on the rotating ring 302, pressing down the cutter head 304, and the blade 307 contacts the film to complete the longitudinal cut. The cutting head 3 can be adjusted along the guide rod 4 to adapt to different widths of film required.

[0050] After the longitudinal cutting is completed, the second motor 5 starts, driving the belt 8 on the transverse guide rail to rotate. The fixing frame 2 slides along the transverse guide rail to the designated position via the first slider 7 on the back. At this time, the cutting head 3 on the fixing frame 2 repeats the above-mentioned cylinder driving action, and the blade 307 performs transverse cutting on the film to form a food container film unit of the required size.

[0051] After each cut, the gripper 12 releases and returns to its initial position, and new coating material is conveyed to the processing area. This process is repeated to achieve continuous production. The coordinated movement of the transverse and longitudinal guide rails automatically adjusts the cutting position according to a preset program, adapting to the coating requirements of paper lunch boxes of different sizes.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A paper lunch box laminating and cutting device, comprising a support frame (10), characterized in that: A tabletop (11) is installed on the support frame (10). Longitudinal guide rails (9) are installed on both sides of the tabletop (11). A first slider (7) is slidably installed on the longitudinal guide rails (9). A fixing rod (6) is slidably installed on the tabletop (11) via the longitudinal guide rails (9) and the first slider (7). A gripper (12) is installed on the fixing rod (6). A fixing frame (2) is installed on the support frame (10) above one side of the gripper (12). A guide rod (4) is installed on the side of the support frame (10) away from the gripper (12). A cutting head (3) is installed on both the fixing frame (2) and the guide rod (4).

2. The paper lunch box laminating and cutting device according to claim 1, characterized in that: The cutting head (3) on the guide rod (4) makes longitudinal cuts on the film, and the cutting head (3) on the fixing frame (2) makes transverse cuts on the film.

3. The paper lunch box laminating and cutting device according to claim 1, characterized in that: The support frame (10) is equipped with a first motor (1), which is connected to the transmission rod (13) via a synchronous belt (14). A belt (8) is installed on the longitudinal guide rail (9), and both ends of the transmission rod (13) are connected to the belt (8) of the longitudinal guide rail (9). The first slider (7) is fixedly installed on the belt (8).

4. The paper lunch box laminating and cutting device according to claim 1, characterized in that: After the clamp (12) clamps and fixes the film, the film is pulled by sliding on the table (11) through the cooperation of the first slider (7), belt (8) and longitudinal guide rail (9).

5. The paper lunch box laminating and cutting device according to claim 1, characterized in that: The support frame (10) is also equipped with a transverse guide rail, and a belt (8) is also provided on the transverse guide rail. The back of the fixing frame (2) is provided with a first slider (7), and the fixing frame (2) slides on the transverse guide rail through the first slider (7) and the belt (8).

6. The paper lunch box laminating and cutting device according to claim 5, characterized in that: A second motor (5) is installed at one end of the transverse guide rail, and the belt (8) of the transverse guide rail is driven by the second motor (5).

7. The paper lunch box laminating and cutting device according to claim 1, characterized in that: The cutting head (3) includes a mounting bracket (301), on which a rotating ring (302) is rotatably mounted. A cylinder (306) is mounted on one side of the mounting bracket (301). The cylinder (306) is connected to a connecting bracket (303) via a connecting rod (305). The connecting bracket (303) is located on the rotating ring (302). A cutting head (304) is mounted on the connecting bracket (303). A blade (307) is clamped and fixed between the cutting head (304) and the connecting bracket (303).

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