PET lining box cutting, pressing and pasting integrated machine

Abstract

The utility model relates to packaging processing equipment technical field, concretely, PET lining box cuts and presses and pastes integrated machine, including lower mould and setting upper mould in lower mould top, be provided with pressure pasting chamber in lower mould, the bottom surface of upper mould is fixedly installed with hot pressing male die, the top of hot pressing male die is provided with crossbeam board, fixedly installed with left and right two first air cylinders that are mutually symmetrical on crossbeam board, upper mould sets up on the telescopic axle of two first air cylinders, one side of lower mould is provided with lower cutter, fixedly installed with second air cylinder on crossbeam board, the telescopic axle end of second air cylinder detachably installs with upper cutter, upper cutter is located the right above of lower cutter, one side of lower mould is provided with multiple groups of conveying roller for conveying raw materials. The utility model can carry out continuous processing operation, save manual transfer link, and it is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of packaging processing equipment technology, specifically to a PET inner liner box cutting, pressing and pasting integrated machine. Background Technology

[0002] PET liners, with their transparent and attractive appearance, impact resistance, environmental friendliness, and recyclability, are widely used in packaging for food, cosmetics, and electronic components. Their production process involves key steps such as raw material conveying, edge cutting and forming, and hot pressing and laminating. The continuity and processing precision of these steps directly determine the production efficiency and product quality of PET liners. With the continuous growth in demand for PET liners in the packaging industry and the increasing requirements for production automation and integration, traditional decentralized processing equipment can no longer meet the needs of large-scale, high-precision production. As a result, PET liner cutting, pressing, and laminating integrated machines have emerged.

[0003] A high-quality PET inner liner box cutting, pressing and bonding machine needs to achieve seamless connection of the "conveying-edge cutting-pressing" process. It must ensure accurate feeding of PET raw materials through a stable raw material conveying structure, achieve accurate edge cutting with the help of efficient cutting blade components, and complete the bonding and shaping through a controllable hot pressing structure. This reduces the transfer time and manual intervention between processes. Such equipment can significantly improve the production efficiency of PET inner liners, reduce labor costs, and ensure product size consistency.

[0004] The existing processing method requires manual transfer of PET raw materials between the cutting and laminating equipment, which not only increases labor costs but also leads to excessively long waiting times between processes (the total processing time for a single box exceeds 30 seconds). Furthermore, the transfer process can easily cause scratches and deformation of the raw materials, affecting product quality. In view of this, we have proposed an integrated PET inner liner box cutting and laminating machine. Utility Model Content

[0005] The purpose of this invention is to provide a PET inner liner box cutting, pressing and pasting integrated machine to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A PET inner liner box cutting, pressing, and bonding machine includes a lower mold and an upper mold positioned above the lower mold. The lower mold has a bonding chamber. A hot pressing punch is fixedly mounted on the bottom surface of the upper mold. A crossbeam is positioned above the hot pressing punch. Two symmetrical first cylinders are fixedly mounted on the crossbeam. The upper mold is mounted on the telescopic shafts of the two first cylinders. A lower cutter is positioned on one side of the lower mold. A second cylinder is fixedly mounted on the crossbeam. An upper cutter is detachably mounted at the end of the telescopic shaft of the second cylinder. The upper cutter is located directly above the lower cutter. Multiple sets of conveyor rollers for conveying raw materials are positioned on one side of the lower mold.

[0008] Preferably, a pad is fixedly installed on the side of the lower mold, and the lower cutter is detachably installed on the top surface of the pad;

[0009] This setting enables the use of pad blocks to support the lower cutter, while also concentrating the lower cutter on one side of the lower die, which helps to ensure continuous cutting and pressing operations.

[0010] Preferably, the lower cutter is provided with multiple fixed frames on the side away from the lower die, and the two conveying rollers in each group are rotatably connected to the corresponding fixed frames via a rotating shaft, and the conveying rollers are driven to rotate by a stepper motor.

[0011] Preferably, a lifting platform is provided between the lower cutter and the fixed frame, and a support frame is fixedly installed at the bottom of the lifting platform;

[0012] This setting enables the lifting and supporting of raw materials, making the forward delivery of materials more precise and preventing deviation.

[0013] Preferably, a bolt plate is fixedly installed at the end of the telescopic shaft of the first cylinder, and the upper mold is detachably installed on the bottom surface of the two bolt plates.

[0014] Preferably, the hot pressing punch and the upper die are detachably connected by multiple fastening bolts, and a temperature-controlled electric heater is provided inside the hot pressing punch;

[0015] This feature allows the temperature-controlled electric heater to heat the hot-pressing die, ensuring smooth hot-pressing operations. In addition, the detachable connection makes it easier to maintain the temperature-controlled electric heater.

[0016] Preferably, a fixing plate is fixedly installed at the end of the telescopic shaft of the second cylinder, a support beam is detachably installed on the bottom surface of the fixing plate, a base plate is fixedly installed at the bottom end of the support beam, and the upper cutter is detachably installed on the bottom surface of the base plate;

[0017] This setting facilitates the loading and unloading of the upper cutter.

[0018] Preferably, a guide sleeve is fixedly installed on the upper surface of the base plate, and a guide post is fixedly installed on the bottom surface of the crossbeam plate. The guide sleeve is sleeved on the guide post and slidably connected to the guide post.

[0019] This setting guides the up-and-down movement of the upper cutter, making it more stable during the up-and-down movement.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model features an integrated structure with multiple sets of conveying rollers, cutting blade components, and hot pressing components. The multiple sets of conveying rollers can stably transport PET raw materials, allowing the raw materials to be delivered between the lower and upper cutting blades for edge trimming without manual transfer. The raw materials on the front side of the edge trimming are now between the upper and lower molds. The first cylinder drives the upper mold to drive the hot pressing punch for hot pressing and bonding, achieving seamless connection of the "conveying-edge trimming-pressing" process. This design eliminates the manual transfer link, significantly shortens the processing time per box, and avoids scratches and deformation of the raw materials during transfer, ensuring product quality and reducing labor costs.

[0022] 2. This utility model optimizes the positioning and driving structure of the cutter and hot press. The second cylinder drives the upper cutter to move stably downward along the guide post and guide sleeve, precisely aligning it with the lower cutter, reducing problems such as skewing and burrs. The temperature-controlled electric heater inside the hot press punch can precisely control the temperature, and the first cylinder symmetrically drives the upper die, ensuring uniform transmission of mold closing pressure and preventing air bubbles and wrinkles at the bonding area. In addition, the lifting platform supports the raw material during transportation, preventing material deviation, further improving the dimensional accuracy of the cut edges and the quality of hot press bonding, ensuring product dimensional consistency, and increasing the pass rate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a cross-sectional view of the hot pressing punch of this utility model;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Lower mold; 10. Pressing chamber; 11. Pad block; 12. Lower cutter; 13. Lifting platform; 131. Support frame; 14. Fixing frame; 141. Conveyor roller;

[0028] 2. Crossbeam plate; 20. First cylinder; 21. Bolt plate; 22. Upper mold; 23. Hot pressing punch; 231. Temperature-controlled electric heater; 24. Second cylinder; 241. Fixing plate; 25. Support beam; 251. Base plate; 26. Upper cutter; 27. Guide sleeve; 28. Guide post. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Please see Figures 1-3 This utility model provides a technical solution: a PET inner liner box cutting, pressing, and bonding integrated machine, including a lower mold 1 and an upper mold 22 disposed above the lower mold 1. The lower mold 1 has a bonding chamber 10. A hot pressing punch 23 is fixedly installed on the bottom surface of the upper mold 22. A crossbeam plate 2 is disposed above the hot pressing punch 23. Two symmetrical first cylinders 20 are fixedly installed on the crossbeam plate 2. The upper mold 22 is disposed on the telescopic shafts of the two first cylinders 20. A lower cutter 12 is disposed on one side of the lower mold 1. A second cylinder 24 is fixedly installed on plate 2. An upper cutter 26 is detachably installed at the end of the telescopic shaft of the second cylinder 24. The upper cutter 26 is located directly above the lower cutter 12. Multiple sets of conveying rollers 141 for conveying raw materials are provided on one side of the lower mold 1. The conveying rollers 141 are used to convey the raw materials, and then the lower cutter 12 and the upper cutter 26 are used to cut them. The raw materials on the cut side are now between the lower mold 1 and the upper mold 22. The hot pressing punch 23 is used to press down to achieve the pressing operation.

[0032] like Figure 1 As shown, a pad 11 is fixedly installed on the side of the lower mold 1, and the lower cutter 12 is detachably installed on the top surface of the pad 11. This provides stable support for the lower cutter 12, preventing it from shaking during operation, and also concentrates the lower cutter 12 on one side of the lower mold 1, allowing the cutter material to quickly enter the pressing chamber 10 of the lower mold 1, ensuring continuous connection of the "cutting-pressing" process and reducing processing interruption time.

[0033] In this embodiment, a plurality of fixed frames 14 are provided on the side of the lower cutter 12 away from the lower mold 1. The two conveying rollers 141 in each group are rotatably connected to the corresponding fixed frame 14 through a rotating shaft. The conveying rollers 141 are driven to rotate by a stepper motor. The stepper motor can precisely control the speed of the conveying rollers 141, so that the PET raw material is stably conveyed to the lower cutter 12 at a set speed, avoiding deviation of the cutting edge position caused by the raw material being conveyed too fast or too slow, and improving the raw material feeding accuracy.

[0034] like Figure 1 As shown, a lifting platform 13 is provided between the lower cutter 12 and the fixed frame 14. A support frame 131 is fixedly installed at the bottom of the lifting platform 13, which can lift the PET raw material being conveyed, prevent the raw material from sagging or shifting due to its own weight, ensure that the raw material is conveyed flat and accurately to the cutter assembly, and further ensure the cutting accuracy.

[0035] Specifically, a bolt plate 21 is fixedly installed at the end of the telescopic shaft of the first cylinder 20. The upper mold 22 is detachably installed on the bottom surface of the two bolt plates 21, making the upper mold 22 easy to disassemble and maintain. When it is necessary to replace the hot pressing punch 23 of different specifications, the upper mold 22 can be quickly removed for adjustment, improving the efficiency of equipment maintenance and mold replacement.

[0036] Furthermore, the hot pressing punch 23 and the upper die 22 are detachably connected by multiple fastening bolts. The hot pressing punch 23 is equipped with a temperature-controlled electric heater 231, which can accurately heat the hot pressing punch 23 to meet the bonding temperature requirements, and also facilitate the disassembly of the hot pressing punch 23 to inspect and repair the temperature-controlled electric heater 231.

[0037] In addition, a fixing plate 241 is fixedly installed at the end of the telescopic shaft of the second cylinder 24. A support beam 25 is detachably installed on the bottom surface of the fixing plate 241. A base plate 251 is fixedly installed at the bottom end of the support beam 25. The upper cutter 26 is detachably installed on the bottom surface of the base plate 251, so that the upper cutter 26 can be installed and removed without disassembling the cylinder, simplifying the tool replacement process and adapting to the cutting requirements of PET inner liner boxes of different specifications.

[0038] It is worth noting that a guide sleeve 27 is fixedly installed on the upper surface of the base plate 251, and a guide post 28 is fixedly installed on the bottom surface of the crossbeam plate 2. The guide sleeve 27 is fitted onto the guide post 28 and slidably connected to the guide post 28. When the second cylinder 24 drives the upper cutter 26 to move up and down, the guide sleeve 27 slides stably along the guide post 28 to prevent the upper cutter 26 from deviating, ensuring that the upper cutter 26 and the lower cutter 12 are precisely aligned, reducing the problems of burrs and skewing at the cut edges.

[0039] Finally, it should be noted that the first cylinder 20, the second cylinder 24, the temperature-controlled electric heater 231, the stepper motor, and the corresponding control system and external power supply of this utility model are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0040] When using the PET inner liner box cutting, pressing, and pasting integrated machine of this utility model, the stepper motor is started, driving the multiple sets of conveying rollers 141 on the fixed frame 14 to rotate, and the PET raw material is placed between the conveying rollers. The raw material moves forward stably under the support of the lifting platform 13, and is conveyed to the lower mold 1 and the upper mold 22 at a set speed. When the length of the raw material conveyed between the lower mold 1 and the upper mold 22 meets the requirements, the second cylinder 24 on the crossbeam plate 2 is started. Its telescopic shaft drives the fixed plate 241, the support beam 25, and the bottom plate 251 to move downward. The guide sleeve 27 on the bottom plate 251 slides along the guide post 28 of the crossbeam plate 2 to ensure that the guide sleeve 27 on the bottom plate 251 slides along the guide post 28 of the crossbeam plate 2. The upper cutter 26 is precisely aligned with the lower cutter 12. The upper and lower cutters work together to cut the raw material, which is now positioned above the pressing chamber 10 of the lower mold 1. The two first cylinders 20 on the crossbeam plate 2 are activated, and their telescopic shafts drive the upper mold 22 to move down through the bolt plate 21. The hot pressing punch 23 at the bottom of the upper mold 22 enters the pressing chamber 10. The built-in temperature-controlled electric heater 231 has been preheated to the set temperature to perform hot pressing and bonding on the cut raw material. After bonding is completed, the first cylinder and the second cylinder drive the upper mold and the upper cutter to reset respectively. The formed PET inner liner box is then removed and can proceed to the next round of processing.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PET inner liner box cutting, pressing and bonding integrated machine, comprising a lower mold (1) and an upper mold (22) disposed above the lower mold (1), characterized in that: The lower mold (1) is provided with a pressing chamber (10). A hot pressing punch (23) is fixedly installed on the bottom surface of the upper mold (22). A crossbeam plate (2) is provided above the hot pressing punch (23). Two symmetrical first cylinders (20) are fixedly installed on the crossbeam plate (2). The upper mold (22) is set on the telescopic shaft of the two first cylinders (20). A lower cutter (12) is provided on one side of the lower mold (1). A second cylinder (24) is fixedly installed on the crossbeam plate (2). An upper cutter (26) is detachably installed at the end of the telescopic shaft of the second cylinder (24). The upper cutter (26) is located directly above the lower cutter (12). A number of conveying rollers (141) for conveying raw materials are provided on one side of the lower mold (1).

2. The PET inner liner box cutting, pressing, and bonding integrated machine according to claim 1, characterized in that: A pad (11) is fixedly installed on the side of the lower mold (1), and the lower cutter (12) is detachably installed on the top surface of the pad (11).

3. The PET inner liner box cutting, pressing, and pasting integrated machine according to claim 1, characterized in that: The lower cutter (12) is provided with multiple fixed frames (14) on the side away from the lower die (1). The two conveying rollers (141) in each group are rotatably connected to the corresponding fixed frame (14) through a rotating shaft. The conveying rollers (141) are driven to rotate by a stepper motor.

4. The PET inner liner box cutting, pressing, and pasting integrated machine according to claim 3, characterized in that: A lifting platform (13) is provided between the lower cutter (12) and the fixed frame (14), and a support frame (131) is fixedly installed at the bottom of the lifting platform (13).

5. The PET inner liner box cutting, pressing, and bonding integrated machine according to claim 1, characterized in that: The first cylinder (20) has a bolt plate (21) fixedly installed at the end of its telescopic shaft, and the upper mold (22) is detachably installed on the bottom surface of the two bolt plates (21).

6. The PET inner liner box cutting, pressing, and bonding integrated machine according to claim 1, characterized in that: The hot pressing punch (23) and the upper die (22) are detachably connected by multiple fastening bolts, and a temperature-controlled electric heater (231) is provided inside the hot pressing punch (23).

7. The PET inner liner box cutting, pressing, and bonding machine according to claim 1, characterized in that: A fixing plate (241) is fixedly installed at the end of the telescopic shaft of the second cylinder (24). A support beam (25) is detachably installed on the bottom surface of the fixing plate (241). A base plate (251) is fixedly installed at the bottom end of the support beam (25). The upper cutter (26) is detachably installed on the bottom surface of the base plate (251).

8. The PET inner liner box cutting, pressing, and bonding integrated machine according to claim 7, characterized in that: A guide sleeve (27) is fixedly installed on the upper surface of the base plate (251), and a guide post (28) is fixedly installed on the bottom surface of the crossbeam plate (2). The guide sleeve (27) is sleeved on the guide post (28) and slidably connected to the guide post (28).

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