A testing mechanism for the surface properties of metallized polypropylene films

Abstract

This utility model relates to the field of testing technology, specifically to a surface performance testing mechanism for metallized polypropylene film. It includes a conveyor belt for transporting the metallized polypropylene film, a support frame in the middle of the conveyor belt, and an imager at the end of the conveyor belt's transport path. The middle of the conveyor belt is a hollow protrusion. The testing mechanism also includes a lifting and lowering extrusion frame housed within the support frame. The extrusion frame corresponds to the metallized polypropylene film to be tested below. In use, a drive unit is activated to drive the extrusion frame to lift and lower. When the extrusion frame descends to its lowest position, a vertical impact simulation is performed on the metallized polypropylene film to be tested. Simultaneously, driven by a transmission unit, an air jet head reciprocates to simulate stress impacts in multiple directions on the metallized polypropylene film to be tested, ensuring the authenticity of the test structure.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a testing mechanism for the surface properties of metallized polypropylene films. Background Technology

[0002] To ensure the quality of metallized polypropylene films and their applicability in different fields, a series of rigorous surface performance tests are usually required, including impact resistance tests. Existing technologies typically use a contact ball method for extrusion to simulate real impact scenarios. In particular, when the ball impacts the film at a certain speed, it can generate instantaneous high-energy impact, which is more reflective of the material's performance in actual applications than static extrusion.

[0003] For example, Chinese patent application number CN 202510295642.7 discloses a polypropylene film strength testing device that performs testing by extruding the film, making the performance testing of the polypropylene film more accurate. The device has an internal extrusion mechanism that compresses the upper surface of the polypropylene film during stretching, enabling testing of the film's impact resistance and strength. However, it can only apply force in one direction, simulating only a single-directional impact scenario. Real impacts often involve multi-directional stress distribution, thus the accuracy of the test results needs improvement. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a surface performance testing mechanism for metallized polypropylene films, so as to solve the technical problem that the existing technology can only apply force in one direction and can only simulate impact scenarios in a single direction, while real impacts often involve multi-directional stress distribution, resulting in poor authenticity of test results.

[0005] To achieve the above objectives, this utility model provides a surface performance testing mechanism for metallized polypropylene films, comprising a conveyor belt for transporting metallized polypropylene films, a support in the middle of the conveyor belt, an imager at the end of the conveyor belt's transport path, and a hollow protrusion in the middle of the conveyor belt. The testing mechanism further includes:

[0006] An extrusion frame that can be lifted and lowered within the bracket, the extrusion frame corresponding to the metallized polypropylene film to be inspected below;

[0007] A swingable jet head is disposed within the bracket, and the jet head is positioned in front of the extrusion frame on the conveying path of the conveyor belt;

[0008] A drive unit for driving the extrusion frame to perform lifting and lowering actions;

[0009] A transmission unit used to drive the jet head to perform a reciprocating oscillating motion.

[0010] Furthermore, the bracket is provided with a limiting frame, and the metallized polypropylene film to be inspected is placed between the conveyor belt and the limiting frame.

[0011] Furthermore, the drive unit includes:

[0012] Mounting plate and guide frame disposed within the bracket;

[0013] A drive motor mounted on the mounting plate;

[0014] A sliding ring is provided on the guide frame;

[0015] A rocker arm is provided on the output end of the drive motor, and the other end of the rocker arm is slidably disposed within the slip ring;

[0016] The extrusion frame is installed at the lower end of the slip ring.

[0017] Furthermore, there are two extrusion frames, and extrusion balls are installed at the lower ends of both extrusion frames.

[0018] Furthermore, the extrusion ball is detachably mounted on the extrusion frame, and the two extrusion balls are at the same horizontal height.

[0019] Furthermore, the transmission unit includes:

[0020] Rotate the shaft mounted on the guide frame;

[0021] A guide groove is fixedly provided on the rotating shaft, and the end of the rocker arm is slidably provided in the guide groove;

[0022] The jet head is mounted on the rotating shaft.

[0023] Furthermore, the jet head is mounted on the rotating shaft via a fixing plate, and the jet head is adjustablely mounted on the fixing plate.

[0024] Furthermore, the limiting frame has a partitioned structure, with the extrusion frame and the jet head respectively placed in different partitions of the limiting frame.

[0025] The beneficial effects of this utility model are as follows: When in use, the drive unit is activated to drive the extrusion frame to perform lifting and lowering actions. When the extrusion frame descends to the lowest point, it simulates the vertical impact of the metallized polypropylene film to be tested. At the same time, under the drive of the transmission unit, the jet head will also perform reciprocating swinging actions to simulate stress impact in multiple directions on the metallized polypropylene film to be tested, ensuring the authenticity of the test structure. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0029] Figure 3 This is a schematic diagram of the assembly of the conveyor belt and the limiting frame in this utility model;

[0030] Figure 4 This is a schematic diagram of the assembly of the drive unit and the transmission unit in this utility model.

[0031] The diagram is marked as follows:

[0032] 1. Conveyor belt; 2. Support frame; 3. Imager; 4. Extrusion frame; 5. Jet nozzle; 6. Limiting frame; 7. Mounting plate; 8. Guide frame; 9. Drive motor; 10. Slip ring; 11. Rocker arm; 12. Extrusion ball; 14. Rotating shaft; 16. Guide groove; 17. Fixing plate. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The first aspect of this invention provides a surface performance testing mechanism for metallized polypropylene films, such as... Figure 1-4As shown, the device includes a conveyor belt 1 for conveying metallized polypropylene film, a support 2 in the middle of the conveyor belt 1, an imager 3 at the end of the conveying path of the conveyor belt 1, and a hollow protrusion in the middle of the conveyor belt 1. The detection mechanism also includes:

[0036] An extrusion frame 4, which can be lifted and lowered within the bracket 2, corresponds to the metallized polypropylene film to be inspected below.

[0037] The jet head 5 is swayable and is located in the bracket 2. The jet head 5 is positioned in front of the extrusion frame 4 on the conveying path of the conveyor belt 1.

[0038] Drive unit for driving the extrusion frame 4 to perform lifting and lowering actions;

[0039] A transmission unit used to drive the jet head 5 to perform reciprocating oscillating motion.

[0040] In this embodiment, during use, the metallized polypropylene film to be tested is first continuously conveyed by the conveyor belt 1. When the metallized polypropylene film to be tested is placed in the testing position, the drive unit is activated to drive the extrusion frame 4 to perform a lifting and lowering action. When the extrusion frame 4 descends to the lowest point, the metallized polypropylene film to be tested undergoes a vertical impact simulation. At the same time, under the drive of the transmission unit, the jet head 5 also performs a reciprocating swing action to simulate stress impact on the metallized polypropylene film to be tested in multiple directions, ensuring the authenticity of the test structure. Furthermore, since the middle part of the conveyor belt 1 is hollow and protruding, the metallized polypropylene film to be tested can be subjected to impact stress and undergo corresponding deformation, avoiding the direct support of the conveyor belt 1 on the metallized polypropylene film from affecting the test effect. That is, the impact stress is directly applied to the surface of the metallized polypropylene film to be tested, further ensuring the authenticity of the test structure.

[0041] In this embodiment, as Figure 3 As shown, the bracket 2 is equipped with a limiting frame 6. The metallized polypropylene film to be inspected is placed between the conveyor belt 1 and the limiting frame 6. Under the limiting action of the limiting frame 6, the extrusion frame 4 can avoid excessive impact on the metallized polypropylene film to be inspected and pull it up, thereby avoiding continuous tearing of the metallized polypropylene film during the inspection process.

[0042] In this embodiment, as Figure 4 As shown, the drive unit includes:

[0043] Mounting plate 7 and guide frame 8 are located inside bracket 2;

[0044] The drive motor 9 is mounted on the mounting plate 7;

[0045] Sliding ring 10 is mounted on guide frame 8;

[0046] A rocker arm 11 is provided on the output end of the drive motor 9, and the other end of the rocker arm 11 is slidably disposed in the slip ring 10;

[0047] The extrusion frame 4 is installed at the lower end of the slip ring 10;

[0048] Specifically, the output end of the drive motor 9 drives the rocker arm 11 to rotate. During the continuous rotation of the rocker arm 11, the end of the rocker arm 11 will drive the slip ring 10 to slide up and down in the guide frame 8, thereby causing the extrusion frame 4 located at the lower end of the slip ring 10 to perform synchronous lifting and lowering actions.

[0049] In this embodiment, as Figure 4 As shown, there are two extrusion frames 4, and extrusion balls 12 are installed at the lower end of both extrusion frames 4. The extrusion balls 12 can simulate real impact events. In particular, when the extrusion balls 12 hit the film at a certain speed, they can generate instantaneous high-energy impacts, which can better reflect the performance of metallized polypropylene films in practical applications than static extrusion.

[0050] In this embodiment, as Figure 4 As shown, the extrusion ball 12 is detachably installed on the extrusion frame 4. The horizontal height of the two extrusion balls 12 is consistent. The matching specifications of the extrusion ball 12 are determined according to the specific model parameters of the metallized polypropylene film to be tested, so that the testing mechanism has a certain degree of adaptability.

[0051] In this embodiment, as Figure 4 As shown, the transmission unit includes:

[0052] Rotate the rotating shaft 14 mounted on the guide frame 8;

[0053] A guide groove 16 is fixedly mounted on the rotating shaft 14, and the end of the rocker arm 11 is slidably mounted in the guide groove 16;

[0054] The jet head 5 is mounted on the rotating shaft 14;

[0055] Specifically, the end of the rocker arm 11 slides back and forth in the guide groove 16, which drives the rotating shaft 14 to rotate, thereby driving the jet head 5 to perform a reciprocating swinging motion.

[0056] In this embodiment, as Figure 4 As shown, the jet head 5 is mounted on the rotating shaft 14 via the fixing plate 17. The jet head 5 is adjustable on the fixing plate 17. By adjusting the different installation positions of the jet head 5 on the fixing plate 17, the detection mechanism has greater adaptability.

[0057] In this embodiment, the limiting frame 6 is a partitioned structure, with the extrusion frame 4 and the jet head 5 placed in different partitions of the limiting frame 6, so that the extrusion frame 4 and the jet head 5 can be tested together or separately, avoiding mutual interference with the test results.

[0058] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0059] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A kind of surface performance detection mechanism of metallized polypropylene film, including the conveying belt (1) for conveying metallized polypropylene film, the middle part of the conveying belt (1) is equipped with support (2), the imaging instrument (3) is equipped in the conveying path end of the conveying belt (1) of support (2), it is characterized in that, The conveyor belt (1) has a hollow protrusion in the middle, and the detection mechanism also includes: An extrusion frame (4) is liftable and positioned within the bracket (2), the extrusion frame (4) corresponding to the metallized polypropylene film to be inspected below; A swingable jet head (5) is provided in the bracket (2), and the jet head (5) is positioned in front of the extrusion frame (4) on the conveying path of the conveyor belt (1); A drive unit for driving the extrusion frame (4) to perform lifting and lowering operations; A transmission unit for driving the jet head (5) to perform a reciprocating oscillating motion.

2. The mechanism for detecting surface properties of a metalized polypropylene film according to claim 1, wherein The bracket (2) is provided with a limiting frame (6), and the metallized polypropylene film to be inspected is placed between the conveyor belt (1) and the limiting frame (6).

3. The surface performance testing mechanism for metallized polypropylene films according to claim 1, characterized in that, The drive unit includes: Mounting plate (7) and guide frame (8) are provided in the bracket (2); A drive motor (9) is mounted on the mounting plate (7); Sliding ring (10) is provided on the guide frame (8); A rocker arm (11) is provided on the output end of the drive motor (9), and the other end of the rocker arm (11) is slidably disposed in the slip ring (10); The extrusion frame (4) is installed at the lower end of the slip ring (10).

4. The surface performance testing mechanism for metallized polypropylene films according to claim 3, characterized in that, There are two extrusion frames (4), and extrusion balls (12) are installed at the lower ends of both extrusion frames (4).

5. The surface performance testing mechanism for metallized polypropylene films according to claim 4, characterized in that, The extrusion ball (12) is detachably mounted on the extrusion frame (4), and the two extrusion balls (12) are at the same horizontal height.

6. The surface performance testing mechanism for metallized polypropylene films according to claim 3, characterized in that, The transmission unit includes: Rotate the shaft (14) mounted on the guide frame (8); A guide groove (16) is fixedly provided on the rotating shaft (14), and the end of the rocker arm (11) is slidably provided in the guide groove (16); The jet head (5) is mounted on the rotating shaft (14).

7. The surface performance testing mechanism for metallized polypropylene films according to claim 6, characterized in that, The jet head (5) is mounted on the rotating shaft (14) via a fixing plate (17), and the jet head (5) is adjustablely mounted on the fixing plate (17).

8. The surface performance testing mechanism for metallized polypropylene films according to claim 2, characterized in that, The limiting frame (6) has a partitioned structure, and the extrusion frame (4) and the jet head (5) are respectively placed in different partitions of the limiting frame (6).

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