A plastic packaging film fixed-length taking device
By designing a centering guide mechanism and a length-fixing mechanism, the problem of packaging film shifting during high-speed movement was solved, enabling precise length-fixing cutting of the film material and multiple automatic length-fixing applications, thus improving the quality consistency of the packaging film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGLING SHANGMEI NEW MATERIAL PACKAGING CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-07
AI Technical Summary
In the existing technology, the packaging film cannot restrain the lateral displacement of the film material during high-speed movement, resulting in unqualified dimensions or local stretching of the cut film material, which affects the quality of fixed-length use.
The packaging film is centered and guided by a centering and guiding mechanism and a length-fixing mechanism. The packaging film is centered and guided by components such as guide rollers and electric push rods. The film material is cut to length and automatically picked up multiple times using pneumatic fingers and motor-driven threaded rods.
The system effectively aligns the centerline of the packaging film with the centerline of the equipment, preventing film stretching and enabling precise length cutting and multiple automatic length-based retrievals, thus improving the consistency of packaging film quality.
Smart Images
Figure CN224466253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic packaging film processing technology, and in particular to a plastic packaging film fixed-length dispensing device. Background Technology
[0002] Plastic packaging film is a widely used material for packaging food, daily necessities, and industrial products. With its lightweight, durability, and moisture-proof properties, it has become an indispensable part of the modern packaging industry. During the processing of plastic packaging film, it is necessary to cut the film to a fixed length.
[0003] For example, CN217756174U discloses a plastic packaging film fixed-length dispensing device, which includes a base plate. From one side to the other side of the base plate, a film holder, a limiting frame, a fixed cutting frame and a movable cutting frame are arranged in sequence. The fixed cutting frame includes a first cutting blade. A first cutting groove is opened below the first cutting blade on the upper surface of the base plate. A groove is opened on the upper surface of the base plate near the movable cutting frame. Slides are opened on both sides of the groove on the upper surface of the base plate, and the slides are connected to the groove.
[0004] In the existing technology, the packaging film will deviate from the center line due to inertia during high-speed movement, which cannot restrain the lateral displacement of the film material. The displacement leads to the unqualified size of the cut film material or local stretching, resulting in the fixed length value not matching the actual cut length. At the same time, it will cause large fluctuations in length each time it is used, affecting the quality of fixed-length use of packaging film. Utility Model Content
[0005] The purpose of this invention is to solve the problem in the prior art that the lateral displacement of the film material cannot be restrained during high-speed movement, which leads to unqualified dimensions or local stretching of the cut film material, affecting the quality of fixed-length taking of packaging film. Therefore, a fixed-length taking device for plastic packaging film is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a plastic packaging film fixed-length dispensing device, comprising a fixed base, a cutting mechanism installed on one side of the fixed base, a fixed-length mechanism provided on one side of the cutting mechanism, and a centering guide mechanism provided on the other side of the cutting mechanism. The centering guide mechanism includes guide rollers and a fixed plate. Both outer ends of the two guide rollers are slidably sleeved with sleeve plates. A conveying roller is rotatably connected between the two sleeve plates. A movable plate is fixedly connected to the top of the two upper sleeve plates. A first guide groove is opened on one side of the fixed plate. The end of the movable plate is slidably connected to the inside of the first guide groove. A first electric push rod is fixedly connected to one side of one of the movable plates. A mounting plate is fixedly connected to one side of the first electric push rod. One side of the mounting plate is fixedly connected to one side of the fixed plate. One end of the two guide rollers is rotatably connected to one side of the mounting plate. The mounting plate is fixedly connected to the top of the fixed base. A conveying roller is rotatably connected to one side of the mounting plate.
[0007] Preferably, a second guide groove is provided on one side of the fixed plate, and two sliding blocks are slidably connected inside the second guide groove. The ends of the two sliding blocks are rotatably connected to a steering rod, and one end of the steering rod is rotatably connected to one end of the moving plate.
[0008] Preferably, a conveyor roller is rotatably connected to one side of the mounting plate.
[0009] Preferably, the cutting mechanism includes a support frame, a second electric push rod is fixedly connected to one side of the support frame, a sliding plate is fixedly connected to one end of the second electric push rod, a cutting assembly is fixedly connected to one end of the sliding plate, a first guide rail is slidably connected to one side of the sliding plate, and one side of the first guide rail is fixedly connected to the top side of the support frame.
[0010] Preferably, a processing table is fixedly connected to the top of the fixed base.
[0011] Preferably, the length-fixing mechanism includes a second pneumatic finger and a first pneumatic finger. One side of the second pneumatic finger is fixedly connected to one side of the support frame, and a movable sleeve is fixedly connected to one side of the first pneumatic finger. A second guide rail is slidably connected to the bottom end of the movable sleeve, and one side of the second guide rail is fixedly connected to the top side of the fixed base.
[0012] Preferably, the movable sleeve is threadedly connected to a threaded rod in the middle, one end of which is rotatably connected to one side of the fixed seat, and the other end of which is fixedly connected to a drive motor, one side of which is fixedly connected to the top side of the fixed seat.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, the packaging film passes between two guide rollers. The first electric push rod works to push the moving plate connected to it to move. The steering rod rotates, and the sliding block slides inside the second guide groove, thereby driving the other moving plate to move. The two connecting plates move, which drives the distance between the two conveying rollers to change, so as to adapt to packaging films of different widths. The two ends of the packaging film are centered and guided, and the edges of the packaging film are constrained to move along the set path, so that the center line of the packaging film is consistent with the center line of the equipment operation, and the packaging film is prevented from being overstretched on one side.
[0015] 2. In this utility model, a first pneumatic finger clamps one end of the packaging film, a drive motor drives the threaded rod to rotate, and a moving sleeve moves. The movement of the first pneumatic finger moves the clamped packaging film to the fixed-length cutting point. At this time, a second pneumatic finger clamps the packaging film at the other cutting point to prevent the packaging film from moving during the cutting process. After cutting, the drive motor drives the first pneumatic finger to move to the second pneumatic finger to clamp the cut end of the packaging film. The packaging film can be moved again for fixed-length retrieval, thereby realizing multiple automatic fixed-length retrievals of the packaging film. Attached Figure Description
[0016] Figure 1 This utility model provides a first three-dimensional structural schematic diagram of a plastic packaging film fixed-length dispensing device;
[0017] Figure 2 This utility model provides a second three-dimensional structural diagram of a plastic packaging film fixed-length dispensing device;
[0018] Figure 3 This utility model provides a disassembly diagram of the centering guide mechanism of a plastic packaging film fixed-length dispensing device;
[0019] Figure 4 This utility model provides a schematic diagram of the disassembly structure of the cutting mechanism and the length fixing mechanism of a plastic packaging film fixed-length dispensing device.
[0020] Legend: 1. Fixed base; 2. Conveying roller; 3. Centering guide mechanism; 31. Guide roller; 32. Sleeve plate; 33. Conveying roller; 34. Moving plate; 35. First electric push rod; 36. Fixed plate; 37. First guide groove; 38. Second guide groove; 39. Steering rod; 310. Sliding block; 4. Cutting mechanism; 41. Support frame; 42. Cutting assembly; 43. Sliding plate; 44. Second electric push rod; 45. First guide rail; 5. Processing table; 6. Length fixing mechanism; 61. Drive motor; 62. Threaded rod; 63. Moving sleeve; 64. First pneumatic finger; 65. Second guide rail; 66. Second pneumatic finger; 7. Mounting plate. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1: As Figures 1-4As shown, this utility model provides a plastic packaging film fixed-length dispensing device, including a fixed base 1. A cutting mechanism 4 is installed on one side of the fixed base 1, a fixed-length mechanism 6 is provided on one side of the cutting mechanism 4, and a centering guide mechanism 3 is provided on the other side of the cutting mechanism 4. The centering guide mechanism 3 includes guide rollers 31 and fixed plates 36. Both outer ends of the two guide rollers 31 are slidably sleeved with sleeve plates 32. A conveying roller 33 is rotatably connected between the two sleeve plates 32. A movable plate 34 is fixedly connected to the top of the two upper sleeve plates 32. A first guide groove 37 is opened on one side of the fixed plate 36, and the end of the movable plate 34 is slidably connected to the inside of the first guide groove 37. A first electric push rod 35 is fixedly connected to one side of the moving plate 34. A mounting plate 7 is fixedly connected to one side of the first electric push rod 35. One side of the mounting plate 7 is fixedly connected to one side of the fixed plate 36. One end of each of the two guide rollers 31 is rotatably connected to one side of the mounting plate 7. The mounting plate 7 is fixedly connected to the top of the fixed base 1. A conveying roller 2 is rotatably connected to one side of the mounting plate 7. A second guide groove 38 is provided on one side of the fixed plate 36. Two sliding blocks 310 are slidably connected inside the second guide groove 38. A steering rod 39 is rotatably connected to the end of each of the two sliding blocks 310. One end of the steering rod 39 is rotatably connected to one end of the moving plate 34. A conveying roller 2 is rotatably connected to one side of the mounting plate 7.
[0024] The packaging film is conveyed by the conveyor roller 2. The packaging film passes between two guide rollers 31. The two sides of the packaging film are centered and conveyed by two rotating conveyor rollers 33. The first electric push rod 35 drives the moving plate 34 connected to it to move. The end of the moving plate 34 slides inside the first guide groove 37. The steering rod 39 rotates, driving the sliding block 310 to slide inside the second guide groove 38, thereby driving the other moving plate 34 to move. The sleeve plate 32 connected to the bottom side of the two moving plates 34 moves, causing the distance between the two conveyor rollers 33 to change, so as to adapt to packaging films of different widths and center guide the two ends of the packaging film. Through the limiting effect of the two conveyor rollers 33, the edge of the packaging film is constrained to move along the set path, so that the center line of the packaging film is consistent with the running center line of the equipment, preventing the packaging film from being overstretched on one side.
[0025] Example 2: Figure 1 , Figure 2 and Figure 4As shown, the cutting mechanism 4 includes a support frame 41, a second electric push rod 44 fixedly connected to one side of the support frame 41, a sliding plate 43 fixedly connected to one end of the second electric push rod 44, a cutting assembly 42 fixedly connected to one end of the sliding plate 43, a first guide rail 45 slidably connected to one side of the sliding plate 43, and one side of the first guide rail 45 fixedly connected to the top side of the support frame 41; a processing table 5 is fixedly connected to the top of the fixed base 1; the length-fixing mechanism 6 includes a second pneumatic finger 66 and a first pneumatic finger 64, the second pneumatic finger... One side of finger 66 is fixedly connected to one side of support frame 41. One side of the first pneumatic finger 64 is fixedly connected to a movable sleeve 63. The bottom end of the movable sleeve 63 is slidably connected to a second guide rail 65. One side of the second guide rail 65 is fixedly connected to the top side of the fixed seat 1. The middle part of the movable sleeve 63 is threadedly connected to a threaded rod 62. One end of the threaded rod 62 is rotatably connected to one side of the fixed seat 1. The other end of the threaded rod 62 is fixedly connected to a drive motor 61. One side of the drive motor 61 is fixedly connected to the top side of the fixed seat 1.
[0026] The overall effect of this embodiment is as follows: The first pneumatic finger 64 clamps one end of the packaging film; the drive motor 61 rotates the threaded rod 62, causing the threaded movable sleeve 63 to move. The movable sleeve 63 slides on the second guide rail 65, and the fixed movable sleeve 63 moves linearly, driving the first pneumatic finger 64 to move. The movement of the first pneumatic finger 64 moves the clamped packaging film. The processing table 5 has graduations; the first pneumatic finger 64 can move one end of the packaging film to the cutting length. At this time, the second pneumatic finger 66 works to clamp the packaging film at the other cutting point, preventing the packaging film from moving during the cutting process. The cutting assembly 42 includes a cylinder and a cutting blade. The cylinder pushes the cutting blade to change its height. The second electric push rod... The operation of motor 44 drives the sliding plate 43 to move. The sliding plate 43 slides outside the first guide rail 45. The fixed sliding plate 43 moves linearly. The movement of the sliding plate 43 drives the cutting component 42 to move, which can cut the packaging film and realize the fixed length of the packaging film. The cutting component 42 and the second pneumatic finger 66 are reserved with a certain distance for movement, so that the other end of the packaging film after cutting is reserved with the second pneumatic finger 66 for clamping. This can be used for the first pneumatic finger 64 to clamp again. After cutting, the drive motor 61 drives the first pneumatic finger 64 to move to the second pneumatic finger 66 to clamp the cut end of the packaging film. The packaging film can be moved again for fixed length picking, thereby realizing multiple automatic fixed length picking of the packaging film.
[0027] The device is used as follows: The packaging film is conveyed by the conveying roller 2. The first electric push rod 35 drives the connected moving plate 34 to move. The steering rod 39 rotates, causing the sliding block 310 to slide inside the second guide groove 38, thereby driving the other moving plate 34 to move. The two sleeve plates 32 move, causing the distance between the two conveying rollers 33 to change, so as to adapt to packaging films of different widths and center and guide the two ends of the packaging film. The first pneumatic finger 64 clamps one end of the packaging film. The drive motor 61 drives the threaded rod 62 to rotate, and the moving sleeve 63 moves, driving the first pneumatic finger 64 to move, so that one end of the clamped packaging film moves to a fixed cutting length. The second pneumatic finger 66 clamps the packaging film on the other side of the cut. The second electric push rod 44 drives the sliding plate 43 to move, and the cutting component 42 moves to pick up the packaging film at a fixed length.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A device for dispensing plastic packaging film at a fixed length, comprising a fixing base (1), characterized in that: A cutting mechanism (4) is installed on one side of the fixed base (1), a length-fixing mechanism (6) is provided on one side of the cutting mechanism (4), and a centering guide mechanism (3) is provided on the other side of the cutting mechanism (4). The centering guide mechanism (3) includes guide rollers (31) and fixed plates (36). Both outer ends of the two guide rollers (31) are slidably sleeved with sleeve plates (32). A conveying roller (33) is rotatably connected between the two sleeve plates (32). A moving plate (34) is fixedly connected to the top of the two upper sleeve plates (32). A first guide groove (37) is provided on one side of the plate (36). The end of the movable plate (34) is slidably connected to the inside of the first guide groove (37). A first electric push rod (35) is fixedly connected to one side of one of the movable plates (34). A mounting plate (7) is fixedly connected to one side of the first electric push rod (35). One side of the mounting plate (7) is fixedly connected to one side of the fixed plate (36). One end of the two guide rollers (31) is rotatably connected to one side of the mounting plate (7). The mounting plate (7) is fixedly connected to the top of the fixed seat (1).
2. The plastic packaging film fixed-length dispensing device according to claim 1, characterized in that: A second guide groove (38) is provided on one side of the fixed plate (36). Two sliding blocks (310) are slidably connected inside the second guide groove (38). A steering rod (39) is rotatably connected to the end of each of the two sliding blocks (310). One end of the steering rod (39) is rotatably connected to one end of the moving plate (34).
3. The plastic packaging film fixed-length dispensing device according to claim 1, characterized in that: A conveyor roller (2) is rotatably connected to one side of the mounting plate (7).
4. The plastic packaging film fixed-length dispensing device according to claim 1, characterized in that: The cutting mechanism (4) includes a support frame (41), a second electric push rod (44) is fixedly connected to one side of the support frame (41), a sliding plate (43) is fixedly connected to one end of the second electric push rod (44), a cutting assembly (42) is fixedly connected to one end of the sliding plate (43), a first guide rail (45) is slidably connected to one side of the sliding plate (43), and one side of the first guide rail (45) is fixedly connected to the top side of the support frame (41).
5. The plastic packaging film fixed-length dispensing device according to claim 1, characterized in that: The top of the fixed base (1) is fixedly connected to the processing table (5).
6. The plastic packaging film fixed-length dispensing device according to claim 1, characterized in that: The length-fixing mechanism (6) includes a second pneumatic finger (66) and a first pneumatic finger (64). One side of the second pneumatic finger (66) is fixedly connected to one side of the support frame (41). One side of the first pneumatic finger (64) is fixedly connected to a movable sleeve (63). The bottom end of the movable sleeve (63) is slidably connected to a second guide rail (65). One side of the second guide rail (65) is fixedly connected to the top side of the fixed seat (1).
7. A plastic packaging film fixed-length dispensing device according to claim 6, characterized in that: The movable sleeve (63) is threadedly connected to a threaded rod (62) in the middle. One end of the threaded rod (62) is rotatably connected to one side of the fixed seat (1), and the other end of the threaded rod (62) is fixedly connected to a drive motor (61). One side of the drive motor (61) is fixedly connected to the top side of the fixed seat (1).