A nylon film biaxial stretching self-centering clamp
Patent Information
- Application Number
- CN202620088984.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2036-01-22
AI Technical Summary
首先，薄膜在平铺固定阶段易出现中心位置偏移问题，由于缺乏精准的实时监测与对中引导结构，操作人员难以快速察觉偏移偏差及具体偏移量，仅依靠人工目测调节不仅效率低下，还易因调节误差导致薄膜拉伸受力失衡，最终引发薄膜边缘起皱、厚度不均甚至断裂等缺陷；
（1）本实用新型尼龙薄膜双向拉伸自对中夹具中，加工座的顶板内端面安装有控制器，控制器的下端面安装有监测器，监测器对准加工座两组交叉轨道槽的中心交点，实时采集尼龙薄膜的实际中心位置信息，监测器将采集到的位置数据转化为电信号传输至控制器，当控制器发觉尼龙薄膜的位置出现偏差时，可以将信息同步到显示屏与箭头指示灯，显示屏可以直观显示偏移的具体数据，箭头指示灯指向偏差方向，为调节过程提供可视化参考；
Smart Images
Figure CN224906475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film production equipment technology, specifically to a biaxial stretching self-centering clamp for nylon films. Background Technology
[0002] Nylon films are increasingly widely used in packaging, electronics, building materials and other fields due to their excellent mechanical strength, barrier properties and heat resistance. Biaxial stretching is the core process to improve the overall performance of nylon films. By stretching the film simultaneously in the longitudinal and transverse directions, the tensile strength, transparency and dimensional stability of the film can be significantly improved to meet the needs of high-end application scenarios. However, existing biaxial stretching equipment for nylon films still has some shortcomings in actual production processes: First, the film is prone to center position shift during the flat laying and fixing stage. Due to the lack of precise real-time monitoring and centering guidance structure, it is difficult for operators to quickly detect the offset deviation and the specific offset amount. Relying solely on manual visual adjustment is not only inefficient, but also prone to causing the film to be stretched and unbalanced due to adjustment errors, ultimately leading to defects such as wrinkling at the film edges, uneven thickness, or even breakage. Secondly, the clamping structure of traditional stretching fixtures lacks effective constraints on its movement trajectory, which can lead to deviations from the predetermined path. This results in inconsistent deployment of the telescopic frame, uneven distribution of the tensile force applied to the film, and consequently affects the consistency of the film's mechanical properties. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the above-mentioned defects of the prior art and provide a biaxial stretching self-centering clamp for nylon film with a precise real-time monitoring and centering guidance structure, which can quickly indicate the offset deviation and specific offset amount and the situation of offset from the predetermined path during the movement of the clamping structure, and uniformly distribute the tensile force applied to the film to ensure the quality of the final nylon film product.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: A biaxial stretching self-centering fixture for nylon film, comprising: a processing base; The front end face of the processing base is rotatably connected to two door panels, the lower end face of the processing base is equipped with two support legs, and the bottom plate surface of the processing base is provided with two sets of cross-shaped track grooves. The placement plate is arranged in a ring with four plates. The placement plate is fixedly installed on the upper end face of the processing base, and the front end face of the placement plate is equipped with a first electric cylinder. The push-pull plate has four push-pull plates arranged in a ring structure. The push-pull plates are located on the upper end face of the processing base, and the outer end face of the push-pull plates is fixedly connected to the telescopic part of the first electric cylinder. The telescopic frame has a scissor structure as its main body, and both ends of the telescopic frame are rotatably connected to push-pull plates. The controller is fixedly installed on the inner end face of the top plate of the processing base, and a monitor is installed on the lower end face of the controller.
[0005] Preferably, a limiting block is fixedly installed on the lower end face of the push-pull plate, and the limiting block is slidably engaged in the track groove on the upper surface of the processing base.
[0006] Preferably, two upper baffles are installed above the inner end face of the telescopic frame, and two lower baffles are fixedly installed below the inner end face of the telescopic frame, with the upper baffles located directly above the lower baffles.
[0007] Preferably, a second electric cylinder is fixedly installed on the upper end face of the upper baffle, and a pressure plate with a circular plate structure is installed at the end of the telescopic part at the lower end of the second electric cylinder.
[0008] Preferably, the controller has four displays mounted on its outer surface, and arrow indicator lights are mounted on the outer surface of the displays. The displays, arrow indicator lights and the controller are electrically connected.
[0009] Preferably, the monitor is located directly above the intersection of the two track slots of the machining base, and the monitor is electrically connected to the controller.
[0010] The beneficial effects of this novel biaxial stretching self-centering clamp for nylon film are as follows: (1) In the biaxial stretching self-centering fixture for nylon film of this utility model, a controller is installed on the inner end face of the top plate of the processing seat, and a monitor is installed on the lower end face of the controller. The monitor is aligned with the center intersection of the two sets of cross track grooves of the processing seat and collects the actual center position information of the nylon film in real time. The monitor converts the collected position data into an electrical signal and transmits it to the controller. When the controller detects that the position of the nylon film is deviated, it can synchronize the information to the display screen and the arrow indicator. The display screen can intuitively display the specific data of the offset, and the arrow indicator points to the direction of the deviation, providing a visual reference for the adjustment process. (2) After adjustment, the second electric cylinder on the surface of the upper baffle is started. The extension and retraction part of the second electric cylinder drives the pressure plate to move downward to fix the nylon film. Then the first electric cylinder is started. The extension and retraction part of the first electric cylinder will drive the push-pull plate to move backward. When the four push-pull plates move backward at the same time, the telescopic frame will unfold synchronously to stretch the nylon film in both directions. (3) In the biaxial stretching self-centering fixture for nylon film of this utility model, the bottom plate of the processing seat is provided with two sets of cross-shaped track grooves. The limiting block at the lower end of the push-pull plate is slidably installed in the track groove, ensuring that the push-pull plate can only move in a straight line along the track groove, driving the telescopic frame to stretch and deform synchronously, thereby applying a uniform tensile force to the nylon film and ensuring the quality of the final nylon film product. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall device structure of an embodiment of the biaxial stretching self-centering clamp for nylon film of this utility model; Figure 2 This is a schematic diagram of the track groove structure on the surface of the processing seat in an embodiment of the nylon film biaxial stretching self-centering fixture of this utility model; Figure 3 This is a schematic diagram of the connection structure between the push-pull plate and the telescopic frame in an embodiment of the nylon film biaxial stretching self-centering clamp of this utility model; Figure 4 This is a schematic diagram of the connection structure between the telescopic frame, the second electric cylinder, and the pressure plate in an embodiment of the biaxial stretching self-centering clamp for nylon film of this utility model; Figure 5 This is a schematic diagram of the connection structure between the first electric cylinder and the push-pull plate in an embodiment of the biaxial stretching self-centering clamp for nylon film of this utility model; Figure 6 This is a schematic diagram of the connection structure between the controller and the display screen in an embodiment of the nylon film biaxial stretching self-centering clamp of this utility model; Figure 7 This is a schematic diagram of the connection structure between the push-pull plate and the limiting block in an embodiment of the nylon film biaxial stretching self-centering clamp of this utility model; List of reference numerals in the attached diagram: 1. Machining base; 101. Support leg; 102. Track groove; 2. Placement plate; 201. First electric cylinder; 3. Push-pull plate; 301. Limiting block; 4. Telescopic frame; 401. Upper baffle; 402. Lower baffle; 5. Second electric cylinder; 501. Pressure plate; 6. Controller; 601. Monitor; 7. Display screen; 701. Arrow indicator light. Detailed Implementation
[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0013] Example 1: Please refer to Figures 1-7 This utility model provides a biaxial stretching self-centering fixture for nylon film, comprising: a processing base 1; The front end face of the processing base 1 is rotatably connected to two door panels, and the lower end face of the processing base 1 is equipped with two support legs 101. The support legs 101 can improve the stability of the processing base 1. The bottom plate surface of the processing base 1 is provided with two sets of cross-shaped track grooves 102. Placement plate 2, four placement plates 2 are arranged in a ring, and the placement plates 2 are fixedly installed on the upper end face of the processing base 1. The first electric cylinder 201 is installed on the front end face of the placement plate 2. Push-pull plate 3, there are four push-pull plates 3, the four push-pull plates 3 are arranged in a ring structure, the push-pull plates 3 are located on the upper end face of the processing base 1, and the outer end face of the push-pull plates 3 is fixedly connected to the telescopic part of the first electric cylinder 201. Telescopic frame 4, the main body of telescopic frame 4 is a scissor structure, and both ends of telescopic frame 4 are rotatably connected to push-pull plate 3 respectively; The controller 6 is fixedly installed on the inner end face of the top plate of the processing base 1, and the monitor 601 is installed on the lower end face of the controller 6.
[0014] Among them, a limiting block 301 is fixedly installed on the lower end face of the push-pull plate 3, and the limiting block 301 is slidably engaged in the track groove 102 on the upper surface of the processing base 1. In use, two sets of intersecting track grooves 102 are opened on the bottom plate surface of the processing base 1. The limiting block 301 at the lower end of the push-pull plate 3 is slidably engaged in the track groove 102, ensuring that the push-pull plate 3 can only move in a straight line along the track groove 102, driving the telescopic frame 4 to stretch and deform synchronously, thereby applying a uniform tensile force to the nylon film and ensuring the quality of the final nylon film product.
[0015] The telescopic frame 4 has two upper baffles 401 installed above its inner end face and two lower baffles 402 fixedly installed below its inner end face. The upper baffles 401 are located directly above the lower baffles 402. A second electric cylinder 5 is fixedly installed on the upper end face of the upper baffle 401. A circular plate-shaped pressure plate 501 is installed at the end of the telescopic part of the lower end of the second electric cylinder 5. In use, after the second electric cylinder 5 on the surface of the upper baffle 401 is started, the telescopic part of the second electric cylinder 5 drives the pressure plate 501 to move downward to fix the nylon film.
[0016] The controller 6 has four displays 7 mounted on its outer end face, and arrow indicator lights 701 mounted on the outer end face of each display 7. The displays 7, arrow indicator lights 701, and controller 6 are electrically connected. The monitor 601 is located directly above the intersection of the two track grooves 102 of the processing base 1, and is electrically connected to controller 6. During use, the monitor 601 is mounted on the lower end face of controller 6. The monitor 601 is aligned with the center intersection of the two sets of intersecting track grooves 102 of the processing base 1 and collects the actual center position information of the nylon film in real time. The monitor 601 converts the collected position data into an electrical signal and transmits it to controller 6. When controller 6 detects a deviation in the position of the nylon film, it can synchronize the information to the displays 7 and arrow indicator lights 701. The displays 7 can intuitively display the specific data of the deviation, and the arrow indicator lights 701 point in the direction of the deviation, providing a visual reference for the adjustment process.
[0017] The working process and usage of this utility model's biaxial stretching self-centering clamp for nylon film are as follows: In use, the operator lays the nylon film to be biaxially stretched flat on the upper surface of the processing base 1. The four sides of the nylon film are positioned above the lower baffle 402. A controller 6 is installed on the inner surface of the top plate of the processing base 1, and a monitor 601 is installed on the lower surface of the controller 6. The monitor 601 is aligned with the center intersection of the two sets of intersecting track grooves 102 of the processing base 1, and collects the actual center position information of the nylon film in real time. The monitor 601 converts the collected position data into an electrical signal and transmits it to the controller 6. When the controller 6 detects a deviation in the position of the nylon film, it can synchronize the information to the display screen 7 and the arrow indicator 701. The display screen 7 can intuitively display the specific data of the deviation, and the arrow indicator 701 points to the direction of the deviation, providing a visual reference for the adjustment process. After adjustment, the second electric cylinder 5 on the surface of the upper baffle 401 is activated. The telescopic part of the second electric cylinder 5 drives the pressure plate 501 to move downward to fix the nylon film. Then the first electric cylinder 201 is activated. The telescopic part of the first electric cylinder 201 will drive the push-pull plate 3 to move backward. When the four push-pull plates 3 move backward at the same time, the telescopic frame 4 will unfold synchronously to stretch the nylon film in both directions. The bottom plate surface of the processing seat 1 is provided with two sets of cross-shaped track grooves 102. The limiting block 301 at the lower end of the push-pull plate 3 is slidably locked in the track groove 102 to ensure that the push-pull plate 3 can only move in a straight line along the track groove 102, driving the telescopic frame 4 to stretch and deform synchronously, thereby applying a uniform tensile force to the nylon film and ensuring the quality of the final nylon film product.
Claims
1. A biaxially stretched self-centering clamp for nylon film, characterized in that, include: Machining base (1); The front end face of the processing base (1) is rotatably connected to two door panels, and the lower end face of the processing base (1) is equipped with two support legs (101). The bottom plate surface of the processing base (1) is provided with two sets of cross-shaped track grooves (102). Placement plate (2), four placement plates (2) are arranged in a ring, and the placement plate (2) is fixedly installed on the upper end face of the processing seat (1). The first electric cylinder (201) is installed on the front end face of the placement plate (2). Push-pull plate (3), there are four push-pull plates (3), the four push-pull plates (3) are arranged in a ring structure, the push-pull plates (3) are located on the upper end face of the processing seat (1), and the outer end face of the push-pull plate (3) is fixedly connected to the telescopic part of the first electric cylinder (201); Telescopic frame (4), the main body of the telescopic frame (4) is a scissor structure, and the two ends of the telescopic frame (4) are rotatably connected to the push-pull plate (3); The controller (6) is fixedly installed on the inner end face of the top plate of the processing base (1), and a monitor (601) is installed on the lower end face of the controller (6).
2. The nylon film biaxial stretching self-centering clamp according to claim 1, characterized in that, The lower end face of the push-pull plate (3) is fixedly installed with a limiting block (301), and the limiting block (301) is slidably locked in the track groove (102) on the upper surface of the processing seat (1).
3. The nylon film biaxial stretching self-centering clamp according to claim 1 or 2, characterized in that, Two upper baffles (401) are installed above the inner end face of the telescopic frame (4), and two lower baffles (402) are fixedly installed below the inner end face of the telescopic frame (4). The upper baffles (401) are located directly above the lower baffles (402).
4. The nylon film biaxial stretching self-centering fixture according to claim 3, characterized in that, The upper end face of the upper baffle (401) is fixedly installed with a second electric cylinder (5), and the end of the telescopic part of the lower end of the second electric cylinder (5) is installed with a pressure plate (501) of a circular plate structure.
5. The nylon film biaxial stretching self-centering clamp according to claim 1 or 2, characterized in that, The controller (6) is equipped with four displays (7) on its outer end face. Arrow indicator lights (701) are installed on the outer end face of the displays (7). The displays (7), arrow indicator lights (701) and controller (6) are electrically connected.
6. The nylon film biaxial stretching self-centering clamp according to claim 1 or 2, characterized in that, The monitor (601) is located directly above the intersection of the two track slots (102) of the machining base (1), and the monitor (601) is electrically connected to the controller (6).