Edge cutting device for plastic film processing

Abstract

The utility model discloses an edge cutting device for plastic film processing, which is characterized in that an edge cutting knife is arranged on a support rod through a quick assembly mechanism, a plurality of groups of conveying rollers are rotatably arranged on the top surface of a support frame, a plurality of groups of mounting frames are distributed at the two ends of the support frame, and an unwinding roller and a winding roller are respectively arranged on the plurality of groups of mounting frames; the motor is fixed to the mounting frame, the output end of the motor is connected with the winding roller, the quick-assembly mechanism comprises a quick-assembly sleeve, an insertion hole, an insertion rod, elastic pieces, a clamping groove and a quick-disassembly mechanism, the quick-assembly sleeve is fixed to the supporting rod, the insertion hole is formed in the trimming cutter and the supporting rod, the insertion rod is inserted into the insertion hole and the quick-assembly sleeve, and the elastic pieces are distributed on the inner wall of the quick-assembly sleeve and connected with the clamping groove. Due to the design that the clamping groove is provided with a plurality of groups of quick mounting mechanisms distributed on the outer wall of the inserting rod, the mounting efficiency is remarkably improved, the time required for replacing the cutter is shortened, the operation complexity is reduced, the downtime is shortened in the production process, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic film processing technology, and more specifically, it relates to a plastic film processing edge trimming device. Background Technology

[0002] In modern production processes, the processing of plastic film has become an indispensable part of many industries, especially in packaging, construction, and agriculture. With the continuous expansion of production scale, the requirements for the edge cutting process of plastic film are becoming increasingly stringent. In order to ensure the neatness and precision of the edge cutting, the edge cutting blade in the edge cutting device must be able to work efficiently and stably. However, in the existing technology, the process of installing, disassembling, and replacing the edge cutting blade in the edge cutting device is relatively complicated, requiring a large number of tools and a lot of time, resulting in low operating efficiency. This situation not only increases production downtime but also leads to an increase in production costs, affecting the normal operation of the production line. Therefore, how to design a convenient and efficient method for installing and disassembling the edge cutting blade has become an important issue for improving production efficiency and reducing costs.

[0003] On the other hand, in some high-frequency or multi-batch production environments, frequent replacement of the cutting blade is particularly important. After prolonged use, the cutting blade will wear down, resulting in a decrease in cutting effect. It must be replaced or maintained regularly. In the current design of the cutting device, the operation of replacing the cutting blade usually requires a complicated disassembly process. Moreover, when installing a new blade, it is often difficult to ensure that its position is accurately aligned. This not only affects the cutting quality but also increases the difficulty of manual operation. In some special production scenarios, the working environment of the production line is complex and the operating space is limited. It is necessary to optimize the installation, disassembly, and replacement process of the cutting blade to make it simpler, safer, and faster. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a plastic film processing edge cutting device to solve the technical problem mentioned in the background art that the process of installing, disassembling and replacing the edge cutting knife is relatively complicated.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a plastic film processing edge trimming device, comprising a support frame, on which an edge trimming mechanism is provided. The edge trimming mechanism includes a support rod, an edge trimming blade, a conveying roller, a mounting frame, an unwinding roller, a winding roller, and a motor. The support rod is mounted on the top of the support frame. The edge trimming blade is mounted on the support rod via a quick-release mechanism. Multiple sets of conveying rollers are rotatably mounted on the top surface of the support frame. Multiple sets of mounting frames are distributed at both ends of the support frame. The unwinding roller and the winding roller are respectively mounted on multiple sets of mounting frames. The motor is fixed on the mounting frame and its output end is connected to the winding roller. The quick-release mechanism includes a quick-release sleeve, an insertion hole, an insertion rod, an elastic sheet, a slot, and a quick-release mechanism. The quick-release sleeve is fixed on the support rod. The insertion hole is provided on the edge trimming blade and the support rod. The insertion rod is inserted into the insertion hole and the quick-release sleeve. Multiple sets of elastic sheets are distributed on the inner wall of the quick-release sleeve. Multiple sets of slots are distributed on the outer wall of the insertion rod.

[0008] This invention further comprises a quick-release mechanism including a sliding groove, a sliding sleeve, an unlocking plate, and a tension spring. Multiple sets of sliding grooves are distributed on the outer wall of the quick-release sleeve, and the sliding sleeve slides within these grooves. Multiple unlocking plates are installed on the inner wall of the sliding sleeve. The tension spring connects at both ends to the bottom surface of the sliding sleeve and the outer wall of the quick-release sleeve, allowing the sliding sleeve to slide along the grooves and drive the unlocking plates to perform the unlocking operation. Simultaneously, the tension spring provides a restoring force, ensuring that the sleeve returns to its original position after unlocking, thus improving the convenience and stability of disassembly.

[0009] This invention is further configured such that the quick-release sleeve contains a positioning plate, and multiple sets of positioning plates are provided. The top end of the insertion rod has a positioning groove, and multiple sets of positioning grooves are provided and slidably connected to multiple sets of positioning plates. This allows the insertion rod to slide along the positioning plates and be precisely positioned, ensuring the installation stability of the cutting blade and facilitating quick blade replacement, thus improving the practicality of the device.

[0010] This invention is further configured such that a compression spring is provided at the top of the insertion rod, and an abutment plate is provided inside the quick-release sleeve. This allows the compression spring to provide elastic pressure during installation, ensuring the insertion rod is securely fastened within the quick-release sleeve. Simultaneously, the abutment plate provides support, keeping the insertion rod stable during operation and improving the reliability of the trimming mechanism.

[0011] This invention is further configured such that the tops of all sets of unlocking plates are arc-shaped, allowing the unlocking plates to more smoothly push open the elastic sheet during the pushing process, reducing frictional resistance, and improving the sensitivity and service life of the unlocking mechanism.

[0012] This utility model is further configured such that the mounting frame is provided with a fixing mechanism, which includes a mounting base, a screw, a throttle, a transmission block, a support base, and a connecting sleeve. The mounting base is fixed on the mounting frame, the screw rotates within the mounting base, the throttle is fixed to the top of the screw, the transmission block is threaded to the outer wall of the screw, the support base is fixed to the top surface of the transmission block, and the connecting sleeve is fixed to the support base. This allows the screw to rotate by rotating the throttle, thereby adjusting the position of the transmission block and achieving the fixing and adjustment of the take-up roller or unwind roller, ensuring stable delivery of the plastic film.

[0013] The present invention is further configured such that each of the take-up roller and the unwind roller is provided with a rotating rod at one end, and multiple sets of the rotating rods are respectively movably connected in the connecting sleeve, so that the take-up roller and the unwind roller can rotate freely in the connecting sleeve, ensuring that the plastic film can be smoothly wound and unwound, and improving the smoothness of equipment operation.

[0014] The present invention is further configured such that guide rods are installed in each of the multiple sets of mounting bases, and the guide rods are slidably connected to the transmission block, so that the transmission block can slide stably along the guide rod when the screw rotates, ensuring more precise adjustment of the fixing mechanism, reducing shaking, and improving the stability of the device.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a plastic film processing edge trimming device, which has the following beneficial effects:

[0017] 1. First, the cutting blade mounted on the support rod is installed via a quick-connect mechanism, enabling it to connect to the support rod quickly and accurately. This ensures stable operation of the cutting blade and provides efficient cutting operations. Simultaneously, the configuration of the conveyor roller and take-up roller allows the plastic film to pass smoothly through the cutting blade and be automatically wound up by the take-up roller, improving production efficiency, reducing operator intervention, and optimizing the overall production line workflow. Furthermore, the motor design, through its connection with the take-up roller, drives the entire cutting system to operate automatically, enhancing the device's operational stability and automation level.

[0018] 2. The quick-installation mechanism greatly simplifies the installation process of the cutting blade through the cooperation of components such as the quick-installation sleeve, insertion hole, and insertion rod. The precise fit between the insertion rod and the insertion hole, and the sliding connection between the positioning plate and the positioning groove, ensure the precise positioning and fixation of the cutting blade during installation. The locking design of multiple sets of elastic plates and slots can firmly fix the insertion rod during installation, ensuring the stability of the cutting blade. The configuration of the compression spring provides the necessary pressure during installation, further ensuring that the cutting blade is firmly secured and does not loosen. This quick-installation mechanism design significantly improves installation efficiency, reduces the time and operational complexity required when changing tools, thereby reducing downtime in production and improving work efficiency.

[0019] 3. The linkage design of the sliding sleeve, unlocking plate, and tension spring makes the disassembly process more convenient. Pushing the sliding sleeve causes the unlocking plate to slide along the positioning groove. The arc-shaped top of the unlocking plate pushes open the elastic piece, causing it to disengage from the slot, thereby releasing the fixed position of the cutting blade. Meanwhile, the compression spring ensures that the insertion rod can quickly pop out through the reverse thrust, completing the disassembly of the cutting blade. This design greatly simplifies the disassembly operation, not only improving safety but also avoiding the trouble of requiring a large number of tools and complex operations in traditional disassembly methods. It reduces labor intensity and operation time, and improves the convenience and efficiency of equipment maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a plastic film processing and trimming device according to the present invention;

[0021] Figure 2 This is a schematic diagram showing the disassembled structure of the cutting blade in this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the quick-assembly mechanism in this utility model;

[0023] Figure 4 This is a cross-sectional view of the insertion rod in this utility model;

[0024] Figure 5 This is a schematic diagram of the fixing mechanism in this utility model.

[0025] In the diagram: 1. Support frame; 2. Support rod; 3. Trimming blade; 4. Conveyor roller; 5. Mounting frame; 6. Unwinding roller; 7. Rewinding roller; 8. Motor; 9. Quick-release sleeve; 10. Insertion hole; 11. Insertion rod; 12. Elastic sheet; 13. Slot; 14. Slide groove; 15. Slide sleeve; 16. Unlocking plate; 17. Tension spring; 18. Positioning plate; 19. Positioning groove; 20. Compression spring; 21. Abutment plate; 22. Mounting base; 23. Screw; 24. Throttle; 25. Transmission block; 26. Support base; 27. Connecting sleeve; 28. Rotating rod; 29. ​​Guide rod. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A plastic film processing edge trimming device includes a support frame 1, on which an edge trimming mechanism is mounted. The edge trimming mechanism includes a support rod 2, an edge trimming blade 3, a conveying roller 4, a mounting frame 5, an unwinding roller 6, a winding roller 7, and a motor 8. The support rod 2 is mounted on the top of the support frame 1. The edge trimming blade 3 is mounted on the support rod 2 via a quick-release mechanism. Multiple sets of conveying rollers 4 are rotatably mounted on the top surface of the support frame 1. Multiple sets of mounting frames 5 are distributed at both ends of the support frame 1. The unwinding roller 6 and the winding roller 7 are... The motor 8 is fixed on the mounting frame 5 and its output end is connected to the take-up roller 7. The quick-release mechanism includes a quick-release sleeve 9, a socket 10, a rod 11, an elastic sheet 12, a slot 13 and a quick-release mechanism. The quick-release sleeve 9 is fixed on the support rod 2. The socket 10 is set on the cutting blade 3 and the support rod 2. The rod 11 is inserted into the socket 10 and the quick-release sleeve 9. Multiple sets of elastic sheets 12 are distributed on the inner wall of the quick-release sleeve 9. Multiple sets of slots 13 are distributed on the outer wall of the rod 11.

[0030] The quick-release mechanism includes a slide groove 14, a slide sleeve 15, an unlocking plate 16, and a tension spring 17. Multiple sets of slide grooves 14 are distributed on the outer wall of the quick-release sleeve 9. The slide sleeve 15 slides within multiple sets of slide grooves 14. Multiple sets of unlocking plates 16 are installed on the inner wall of the slide sleeve 15. The two ends of the tension spring 17 are respectively connected to the bottom surface of the slide sleeve 15 and the outer wall of the quick-release sleeve 9. The sliding cooperation between the slide groove 14 and the slide sleeve 15 facilitates disassembly. The unlocking plate 16 achieves the unlocking function through its connection with the slide sleeve 15. The tension spring 17 provides a restoring force to ensure that the quick-release sleeve 9 can return to its original position after disassembly, thereby improving the efficiency of disassembly and installation.

[0031] The quick-release sleeve 9 is equipped with a positioning plate 18, which has multiple sets. The top of the insertion rod 11 is provided with a positioning groove 19, which has multiple sets and is slidably connected to multiple sets of positioning plates 18. The positioning plates 18 cooperate with the positioning grooves 19 on the insertion rod 11 to enable the insertion rod 11 to be accurately positioned and ensure stable connection, so as to avoid affecting the stability of the overall structure due to inaccurate positioning and improve the stability and accuracy of the device.

[0032] The top of the insertion rod 11 is provided with a compression spring 20, and the quick-release sleeve 9 is provided with an abutment plate 21. The compression spring 20 provides the insertion rod 11 with a rebound force to ensure that the insertion rod can effectively return to its original position during operation. The abutment plate 21 plays a supporting role, making the insertion rod 11 more stable and reliable during installation.

[0033] The tops of multiple unlocking plates 16 are all curved. The curved design of the tops of the unlocking plates 16 reduces friction when in contact with other parts, ensuring smoother unlocking action and improving the sensitivity and comfort of operation.

[0034] The mounting bracket 5 is equipped with a fixing mechanism, which includes a mounting base 22, a screw 23, a throttle 24, a transmission block 25, a support base 26, and a connecting sleeve 27. The mounting base 22 is fixed on the mounting bracket 5, the screw 23 rotates inside the mounting base 22, the throttle 24 is fixed to the top of the screw 23, the transmission block 25 is threaded to the outer wall of the screw 23, the support base 26 is fixed to the top surface of the transmission block 25, and the connecting sleeve 27 is fixed on the support base 26.

[0035] Both the take-up roller 7 and the unwind roller 6 are equipped with a rotating rod 28 at one end. Multiple sets of rotating rods 28 are movably connected in the connecting sleeve 27. The design of the rotating rods 28 allows the take-up roller 7 and the unwind roller 6 to rotate flexibly in the connecting sleeve 27, ensuring that the plastic film can be smoothly and efficiently wound and unwound during use, thus improving the smoothness of the equipment's operation.

[0036] Guide rods 29 are installed in multiple mounting bases 22. The guide rods 29 are slidably connected to the transmission block 25. The guide rods 29 guide the transmission block 25 to maintain stable sliding during the rotation of the screw 23, preventing the transmission block 25 from shaking or shifting, and ensuring the precise adjustment of the fixing mechanism and the stable operation of the system.

[0037] In this embodiment, when the cutting blade 3 needs to be installed, the insertion rod 11 is inserted into the insertion hole 10 and then into the quick-release sleeve 9. Multiple positioning plates 18 are slidably inserted into the positioning groove 19. The insertion rod 11 abuts against the inner side of multiple elastic pieces 12 and pushes them outward. Then, the multiple elastic pieces 12 are engaged in the slot 13 to fix the insertion rod 11, thus completing the installation of the cutting blade 3. At the same time, the abutment plate 21 presses the compression spring 20. When the cutting blade 3 needs to be disassembled, the sliding sleeve 15 is pushed to stretch the tension spring 17. The sliding sleeve 15 drives multiple unlocking plates 16 to slide along the positioning groove 19, so that the top of the multiple unlocking plates 16 pushes the elastic pieces 12 outward and disengages them from the slot 13. The elastic reset of the compression spring 20 applies a reverse thrust to the insertion rod 11, thereby causing the insertion rod 11 to pop out of the quick-release sleeve 9 and the insertion hole 10, thus completing the disassembly of the cutting blade 3.

[0038] More specifically, the unwinding roller 6, which is wrapped with plastic film, is movably inserted into a set of mounting brackets 5. Then, the throttle 24 is turned to drive the screw 23 to rotate and engage with the transmission block 25. The screw 23 drives the transmission block 25 and the support base 26 to move, so that the support base 26 drives the connecting sleeve 27 to movably insert with the rotating rod 28 at the top of the take-up roller 7. Then, the plastic film is laid on the outer wall of multiple sets of conveying rollers 4 and then wound onto the take-up roller 7. One end of the take-up roller 7 is fixedly connected to the output end of the motor 8 through a coupling. The motor 8 is started to drive the take-up roller 7 to rotate and wind up the plastic film. At the same time, the edge trimmer 3 trims the plastic film.

[0039] In summary, during the use or operation of the overall equipment: when it is necessary to install the cutting blade 3, insert the rod 11 into the insertion hole 10 and then into the quick-release sleeve 9. Multiple positioning plates 18 slide into the positioning groove 19. The rod 11 abuts against the inner side of multiple elastic plates 12 and pushes it outward. Then, the multiple elastic plates 12 are engaged in the slot 13 to fix the rod 11, thus completing the installation of the cutting blade 3. At the same time, the abutment plate 21 presses the compression spring 20. When it is necessary to disassemble the cutting blade 3, push the sliding sleeve 15 to stretch the tension spring 17. The sliding sleeve 15 drives multiple unlocking plates 16 to slide along the positioning groove 19, so that the top of the multiple unlocking plates 16 pushes the elastic plates 12 outward and disengages them from the slot 13. The elastic reset of the compression spring 20 applies a reverse thrust to the rod 11, thereby causing the rod 11 to pop out of the quick-release sleeve 9 and the insertion hole 10, thus completing the disassembly of the cutting blade 3.

[0040] The unwinding roller 6, which is wrapped with plastic film, is movably inserted into a set of mounting brackets 5. Then, the throttle 24 is turned to drive the screw 23 to rotate and engage with the transmission block 25. The screw 23 drives the transmission block 25 and the support base 26 to move, so that the support base 26 drives the connecting sleeve 27 to movably insert into the rotating rod 28 at the top of the take-up roller 7. Then, the plastic film is laid on the outer wall of multiple sets of conveying rollers 4 and then wound onto the take-up roller 7. One end of the take-up roller 7 is fixedly connected to the output end of the motor 8 through a coupling. The motor 8 is started to drive the take-up roller 7 to rotate and wind up the plastic film. At the same time, the edge trimmer 3 trims the plastic film.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic film processing and trimming device, comprising a support frame (1), characterized in that: The support frame (1) is equipped with a trimming mechanism, which includes a support rod (2), a trimming knife (3), a conveying roller (4), a mounting frame (5), an unwinding roller (6), a winding roller (7), and a motor (8). The support rod (2) is installed on the top of the support frame (1), and the trimming knife (3) is installed on the support rod (2) through a quick-mounting mechanism. The conveying roller (4) is provided with multiple sets of rotatable mountings on the top surface of the support frame (1). The mounting frame (5) is provided with multiple sets distributed at both ends of the support frame (1). The unwinding roller (6) and the winding roller (7) are respectively mounted on multiple sets of mounting frames (5). On the mounting bracket (5), the motor (8) is fixed on the mounting frame (5) and its output end is connected to the take-up roller (7). The quick-release mechanism includes a quick-release sleeve (9), a socket (10), a rod (11), an elastic sheet (12), a slot (13) and a quick-release mechanism. The quick-release sleeve (9) is fixed on the support rod (2). The socket (10) is set on the cutting blade (3) and the support rod (2). The rod (11) is inserted into the socket (10) and the quick-release sleeve (9). The elastic sheet (12) is provided in multiple sets distributed on the inner wall of the quick-release sleeve (9). The slot (13) is provided in multiple sets distributed on the outer wall of the rod (11).

2. The plastic film processing and trimming device according to claim 1, characterized in that: The quick-release mechanism includes a slide groove (14), a slide sleeve (15), an unlocking plate (16), and a tension spring (17). The slide groove (14) is provided in multiple sets distributed on the outer wall of the quick-release sleeve (9). The slide sleeve (15) slides in multiple sets of slide grooves (14). The unlocking plate (16) is provided in multiple sets installed on the inner wall of the slide sleeve (15). The two ends of the tension spring (17) are respectively connected to the bottom surface of the slide sleeve (15) and the outer wall of the quick-release sleeve (9).

3. The plastic film processing edge trimming device according to claim 2, characterized in that: The quick-release sleeve (9) is provided with a positioning plate (18), and there are multiple sets of positioning plates (18). The top of the insertion rod (11) is provided with a positioning groove (19), and there are multiple sets of positioning grooves (19) that are slidably connected to multiple sets of positioning plates (18).

4. The plastic film processing edge trimming device according to claim 3, characterized in that: The top of the insertion rod (11) is provided with a compression spring (20), and the quick-release sleeve (9) is provided with an abutment plate (21).

5. The plastic film processing edge trimming device according to claim 4, characterized in that: The top of each of the unlocking plates (16) is set to be arc-shaped.

6. The plastic film processing edge trimming device according to claim 5, characterized in that: The mounting frame (5) is provided with a fixing mechanism, which includes a mounting base (22), a screw (23), a throttle (24), a transmission block (25), a support base (26), and a connecting sleeve (27). The mounting base (22) is fixed on the mounting frame (5), the screw (23) rotates inside the mounting base (22), the throttle (24) is fixed on the top of the screw (23), the transmission block (25) is threaded to the outer wall of the screw (23), the support base (26) is fixed on the top surface of the transmission block (25), and the connecting sleeve (27) is fixed on the support base (26).

7. The plastic film processing edge trimming device according to claim 6, characterized in that: Both the take-up roller (7) and the unwind roller (6) are provided with a rotating rod (28) at one end, and multiple sets of the rotating rods (28) are movably connected in the connecting sleeve (27).

8. The plastic film processing edge trimming device according to claim 7, characterized in that: Each of the multiple mounting bases (22) is equipped with a guide rod (29), which is slidably connected to the transmission block (25).

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