Plastic film detection device
By introducing a film tearing component into the friction coefficient tester, the error problem caused by wrinkles and folds in film testing is solved, the film sample is laid flat, and the accuracy of the test results is improved.
Patent Information
- Application Number
- CN202422842426.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-21
AI Technical Summary
When an existing friction coefficient tester is used to test a plastic film, the slider and the film surface may come into contact with wrinkles or folds, resulting in large errors in the test results.
A plastic film testing device was designed, which included a film-tearing assembly and a test bench. The film-tearing assembly was used to pull the other end of the film sample so that it could be laid flat on the surface of the test bench, avoiding wrinkles and folds and ensuring smooth sliding of the slider.
The film sample is laid flat, the error of the test result is reduced, and the accuracy of the friction coefficient test is ensured.
Smart Images
Figure CN223449771U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of film detection, and in particular relates to a plastic film detection device. Background Art
[0002] The Plastic Film Friction Coefficient Tester is a device specifically used to measure the static and kinetic friction coefficients of plastic films and sheets. This instrument is widely used in the packaging industry, inspection agencies, and other departments. By measuring the friction coefficient of plastic films, it is possible to control and adjust production quality process indicators such as the opening of packaging bags and the packaging speed of packaging machines.
[0003] Problems with existing technologies:
[0004] When using a friction coefficient meter to test the friction coefficient of a film, the existing friction coefficient meter does not have a structure that can pull the flat film. Therefore, when the slider slides on the surface of the film, the slider is very likely to contact the wrinkled and folded part of the film, causing a momentary relative motion between the slider and the film. This process directly affects the test results of the friction coefficient of the film surface, resulting in a large error in the final test results. Utility Model Content
[0005] The utility model aims to provide a plastic film testing device, which can make the film sample flat and straight on the surface of the test table, and avoid the situation where the wrinkled part of the film directly affects the test result data.
[0006] The technical solutions adopted by this utility model are as follows:
[0007] A plastic film testing device includes a friction coefficient meter and a film sample. A test bench is embedded in the top surface of the friction coefficient meter. A pressure strip for fixing one end of the film sample is provided on the top of the friction coefficient meter and located at one end of the test bench. A film pulling assembly is provided on the top of the friction coefficient meter and located at the other end of the test bench. The film pulling assembly is used to lay the film sample flat by pulling the other end of the film sample.
[0008] One end of the test bench is provided with a tail fixed groove, and side sliding grooves are provided on both sides of the tail fixed groove at one end of the test bench, and oblique grooves are provided on the side walls of the two side sliding grooves close to the tail fixed groove, and the oblique grooves are composed of straight segments and arc segments;
[0009] The film pulling assembly consists of a driving shaft and a film outer pressure body. The driving shaft is rotatably assembled inside the tail fixed groove, and a film inner support body is integrally provided on one side of the driving shaft body. The ends of the driving shaft extending to the inside of the side sliding groove are fixedly installed with gears. The outer walls of both ends of the film inner support body are fixedly provided with vertical rods, and the vertical rods are perpendicular to the driving shaft.
[0010] The membrane inner support and the membrane outer pressure body form a sliding assembly relationship, both ends of the membrane outer pressure body are fixedly provided with guide frames, and the guide frames are slidingly sleeved on the outer surfaces of corresponding vertical rods, the outer surfaces of the vertical rods are slidingly sleeved with sliding frames, and the sliding frames are connected with the ends of the corresponding guide frames through springs, and the side walls of the sliding frames are fixedly provided with penetrating rods which are movably penetrated into the corresponding inclined pulling grooves.
[0011] The top of each of the two side sliding grooves is slidingly assembled with a push block, the bottom of the push block is slidingly assembled with a toothed rod, and the top side wall of the toothed rod is connected with the bottom inner wall of the push block through a spring, and the toothed rod is arranged in the corresponding side sliding groove and engaged with the corresponding gear.
[0012] The outer wall of the front face of the friction coefficient instrument is embeddedly installed with a touch operation panel and a printer, the outer wall of the front face of the friction coefficient instrument is installed with an emergency stop button, and the top of the friction coefficient instrument is hingedly assembled with a protective cover.
[0013] The top of the friction coefficient instrument is slidingly assembled with a transmission mechanism, and the side wall of the end of the transmission mechanism is detachably assembled with a sliding block.
[0014] The inner side of the surface of the test table and one end of the side sliding groove are fixedly provided with clamping blocks, the outer wall of one end of the push block is elastically hingedly connected with a clamping hook, and the clamping hook is hooked with the corresponding clamping block and used for temporarily fixing the push block.
[0015] The central through groove is arranged at the central axis of the membrane outer pressure body, and the rubber wheel rod is rotatably installed in the central through groove.
[0016] The outer wall of the membrane outer pressure body, away from the membrane inner support, is rotatably installed with a push rod through the support, and the two ends of the push rod are drivingly connected with the two ends of the rubber wheel rod through the sleeved belt.
[0017] When the penetrating rod slides along the straight line segment of the inclined pulling groove, the membrane outer pressure body is close to the membrane inner support and clamps one end of the thin film sample, and when the penetrating rod slides along the arc line segment of the inclined pulling groove, one end of the thin film sample is in a state of being pulled.
[0018] The utility model discloses the technical effect achieved is:
[0019] The utility model discloses, through the membrane subassembly makes the thin film sample finally even and straightly lay on the surface of test table, and the thin film sample with certain tension force can avoid appearing partial wrinkle, folding, guarantees the sliding block to slide on the surface of thin film sample smoothly, avoids the condition that the thin film wrinkle portion directly influences test result data.
[0020] The utility model discloses, through the rotation of the rubber wheel lever, the rubber wheel lever that is attached to the partial surface of the film sample, can assist the film to pass through the gap between the inside supporting body and the outside pressing body of the film quickly, and the operation of the film sample passing through the gap between the inside supporting body and the outside pressing body of the film is convenient. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is the main view structural drawing of the friction coefficient appearance provided by the embodiment of the utility model;
[0022] Figure 2 It is the assembly and disassembly drawing of the film tearing assembly provided by the embodiment of the utility model;
[0023] Figure 3 It is the structure disassembly drawing of the film tearing assembly provided by the embodiment of the utility model;
[0024] Figure 4 It is Figure 3 The partial close -up view of A in the middle;
[0025] Figure 5 It is the plane schematic drawing of the inclined pull groove provided by the embodiment of the utility model.
[0026] In the drawings, the component list represented by each sign is as follows:
[0027] 1, friction coefficient appearance;101, touch -control operation panel;102, emergency stop button;103, printer;104, test table;105, transmission mechanism;106, sliding block;107, pressing strip;108, protective cover;109, tail fixed groove;110, side sliding groove;111, inclined pull groove;112, clamping block;2, film tearing assembly;201, driving shaft;202, inside supporting body of film;203, gear;204, vertical rod;205, outside pressing body of film;206, guide frame;207, sliding frame;208, spring one;209, rod;210, dial block;211, gear rod;212, spring two;213, clamping hook;214, middle through groove;215, support;216, dial lever;217, belt;218, rubber wheel lever;3, film sample. DETAILED DESCRIPTION
[0028] In order to make the purpose and the advantage of the utility model more clear and obvious, the utility model is specifically explained below with examples. It should be understood that the following text is only used to describe the utility model with one or several specific implementation manners, and does not strictly limit the protection scope requested by the utility model.
[0029] As Figures 1-5As shown, a plastic film detection device, including a friction coefficient instrument 1 and a film sample 3, a test table 104 is embedded on the top surface of the friction coefficient instrument 1, a pressing strip 107 for fixing one end of the film sample 3 is arranged on one end of the test table 104 on the top of the friction coefficient instrument 1, a film pulling assembly 2 is arranged on the other end of the test table 104 on the top of the friction coefficient instrument 1, and the film pulling assembly 2 is used for laying the film sample 3 by pulling the other end of the film sample 3.
[0030] Referring to the drawings Figure 1 The outer wall of the front of the friction coefficient instrument 1 is embedded with a touch operation panel 101 and a printer 103, the outer wall of the front of the friction coefficient instrument 1 is provided with an emergency stop button 102, the top of the friction coefficient instrument 1 is hingedly assembled with a cover 108, the top of the friction coefficient instrument 1 is slidingly assembled with a transmission mechanism 105, and the side wall of the end of the transmission mechanism 105 is detachably assembled with a sliding block 106.
[0031] According to the above structure, first, the film sample 3 is laid on the surface of the test table 104, the sample is fixed by using the film pulling assembly 2 and the pressing strip 107, then the sliding block 106 is placed on the surface of the film sample 3, the sliding block 106 is connected with the transmission mechanism 105, the force value and displacement changes in the test process are collected through the force value sensor on the transmission mechanism 105 and the displacement sensor inside the friction coefficient instrument 1, so as to calculate various friction mechanical performance indexes of the sample, and the printer 103 is used for printing test results. The above process is prior art and will not be described in detail here.
[0032] Referring to the drawings Figures 1-2 , Figure 5 One end of the test table 104 is provided with a tail groove 109, and both sides of the tail groove 109 at one end of the test table 104 are provided with side sliding grooves 110, and the side walls of the two side sliding grooves 110 close to the tail groove 109 are provided with inclined pull grooves 111, and the inclined pull grooves 111 are composed of a straight line segment and an arc line segment.
[0033] Referring to the drawings Figures 3-4 The film pulling assembly 2 is composed of a driving shaft 201 and a film outer pressing body 205, one side of the rod body of the driving shaft 201 is integrally provided with a film inner supporting body 202, the film inner supporting body 202 and the film outer pressing body 205 are in slidingly assembled relationship, a middle through groove 214 is throughly provided at the middle axis of the film outer pressing body 205, a rubber wheel rod 218 is rotatably installed in the middle through groove 214, a support 215 is arranged on the outer wall of the film outer pressing body 205 away from the film inner supporting body 202, a pulling rod 216 is rotatably installed on the support 215, and the two ends of the pulling rod 216 and the two ends of the rubber wheel rod 218 are drivingly connected through a belt 217.
[0034] According to the above structure, the process of using the film pulling assembly 2 to pull the other end of the film sample 3 is as follows: after one end of the film sample 3 is fixed by the pressure strip 107, the other end is passed through the gap between the inner support body 202 of the film and the outer pressure body 205 of the film, wherein the staff can rotate the lever 216 accordingly, and the lever 216 drives the rubber wheel rod 218 to rotate through the belt 217. The rubber wheel rod 218, which is in contact with part of the surface of the film sample 3, can assist the film to quickly pass through the gap between the inner support body 202 of the film and the outer pressure body 205 of the film, thereby facilitating the operation of the film sample 3 passing through the gap between the inner support body 202 of the film and the outer pressure body 205.
[0035] Refer to the attached Figures 2-4 The driving shaft 201 is rotatably assembled in the tail fixed groove 109, and the end of the driving shaft 201 extending to the inside of the side slide groove 110 is fixedly installed with a gear 203. The outer walls of the two ends of the membrane support body 202 are fixedly provided with a vertical rod 204, and the vertical rod 204 is perpendicular to the driving shaft 201. The top of the two side slide grooves 110 is slidably assembled with a shift block 210, and the bottom of the shift block 210 is slidably assembled with a gear rod 211, and a spring 212 is connected between the top side wall of the gear rod 211 and the bottom inner wall of the shift block 210. The gear rod 211 is placed inside the corresponding side slide groove 110 and meshes with the corresponding gear 203.
[0036] Refer to the attached Figures 2-4 , guide frames 206 are fixedly provided at both ends of the outer pressure body 205 of the membrane, and the end of the guide frame 206 is slidably sleeved on the outer surface of the corresponding vertical rod 204, and the outer surface of the vertical rod 204 is also slidably sleeved with a slide 207, and a spring 208 is connected between the slide 207 and the end of the corresponding guide frame 206, and a through rod 209 is fixedly provided on the side wall of the slide 207, and the through rod 209 is movable through the inside of the corresponding oblique groove 111; when the through rod 209 slides along the straight section of the oblique groove 111, the outer pressure body 205 of the membrane approaches the inner support body 202 of the membrane and clamps one end of the film sample 3, and when the through rod 209 slides along the arc section of the oblique groove 111, one end of the film sample 3 is in a pulled state.
[0037] Refer to the attached Figure 2 A card block 112 is fixedly provided on the surface of the test bench 104 and on the inner side of one end of the side slide groove 110. A hook 213 is elastically hinged on the outer wall of one end of the shift block 210. The hook 213 is hooked with the corresponding card block 112 and is used to temporarily fix the shift block 210.
[0038] According to the above structure, hold the two sides of the dial block 210 and slide to the end of the clamping block 112, the rack bar 211 moves under the connection of the spring two 212, then drives the driving shaft 201 to rotate through the meshing of the rack bar 211 and the gear 203, at this time, the film inner support 202 and the film outer pressure body 205 will rotate together, but because the through rod 209 penetrates the inclined slot 111, the relative movement between the film inner support 202 and the film outer pressure body 205 occurs during rotation, the sliding frame 207 moves along the vertical rod 204 and moves the film outer pressure body 205 by the way of extruding the spring one 208, when the through rod 209 slides along the straight line segment of the inclined slot 111, the film outer pressure body 205 is close to the film inner support 202 and clamps one end of the film sample 3, when the through rod 209 slides along the arc segment of the inclined slot 111, one end of the film sample 3 is in a state of being pulled, through the above process, the film sample 3 is finally laid flat and straight on the surface of the test table 104, and the film sample 3 with a certain tension can avoid partial wrinkles and folding, so that the sliding block 106 can smoothly slide on the surface of the film sample 3, and the wrinkled part of the film does not directly affect the test result data.
[0039] The working principle of the utility model is as follows: hold the two sides of the dial block 210 and slide to the end of the clamping block 112, the rack bar 211 moves under the connection of the spring two 212, then drives the driving shaft 201 to rotate through the meshing of the rack bar 211 and the gear 203, at this time, the film inner support 202 and the film outer pressure body 205 will rotate together, but because the through rod 209 penetrates the inclined slot 111, the relative movement between the film inner support 202 and the film outer pressure body 205 occurs during rotation, the sliding frame 207 moves along the vertical rod 204 and moves the film outer pressure body 205 by the way of extruding the spring one 208, when the through rod 209 slides along the straight line segment of the inclined slot 111, the film outer pressure body 205 is close to the film inner support 202 and clamps one end of the film sample 3, when the through rod 209 slides along the arc segment of the inclined slot 111, one end of the film sample 3 is in a state of being pulled, through the above process, the film sample 3 is finally laid flat and straight on the surface of the test table 104, and the film sample 3 with a certain tension can avoid partial wrinkles and folding, so that the sliding block 106 can smoothly slide on the surface of the film sample 3, and the wrinkled part of the film does not directly affect the test result data.
[0040] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application. Structures, devices and operation methods not specifically described and explained in the present application are implemented according to conventional means in the art, unless otherwise specified and limited.
Claims
1. A plastic film testing device, comprising a friction coefficient meter (1) and a film sample (3), characterized in that: A test bench (104) is embedded in the surface of the top of the friction coefficient meter (1), a pressure strip (107) for fixing one end of the film sample (3) is provided on the top of the friction coefficient meter (1) and located at one end of the test bench (104), a film pulling assembly (2) is provided on the top of the friction coefficient meter (1) and located at the other end of the test bench (104), and the film pulling assembly (2) is used to lay the film sample (3) flat by pulling the other end of the film sample (3); One end of the test bench (104) is provided with a tail fixed groove (109), and one end of the test bench (104) and on both sides of the tail fixed groove (109) are provided with side sliding grooves (110), and the side walls of the two side sliding grooves (110) close to the tail fixed groove (109) are provided with oblique grooves (111), and the oblique grooves (111) are composed of straight line segments and arc segments; The film pulling assembly (2) is composed of a driving shaft (201) and a film outer pressure body (205), the driving shaft (201) is rotatably assembled inside the tail fixed groove (109), and a film inner support body (202) is integrally provided on one side of the driving shaft (201) rod body, and the end of the driving shaft (201) extending to the inside of the side sliding groove (110) is fixedly installed with a gear (203), and the outer walls of both ends of the film inner support body (202) are fixedly provided with a vertical rod (204), and the vertical rod (204) is perpendicular to the driving shaft (201); The membrane inner support body (202) and the membrane outer pressure body (205) form a sliding assembly relationship, and the two ends of the membrane outer pressure body (205) are fixedly provided with guide frames (206), and the ends of the guide frames (206) are slidingly sleeved on the outer surface of the corresponding vertical rod (204), and the outer surface of the vertical rod (204) is also slidingly sleeved with a slide (207), and a spring (208) is connected between the slide (207) and the end of the corresponding guide frame (206), and the side wall of the slide (207) is fixedly provided with a through rod (209), and the through rod (209) is movable through the inside of the corresponding inclined groove (111); The tops of the two side slide grooves (110) are both slidably assembled with shift blocks (210), the bottoms of the shift blocks (210) are slidably assembled with gear rods (211), and a second spring (212) is connected between the top side wall of the gear rod (211) and the bottom inner wall of the shift block (210), and the gear rods (211) are placed inside the corresponding side slide grooves (110) and mesh with the corresponding gears (203).
2. A plastic film detection device according to claim 1, characterized in that: A touch operation panel (101) and a printer (103) are embedded on the outer wall of the front face of the friction coefficient meter (1), an emergency stop button (102) is installed on the outer wall of the front face of the friction coefficient meter (1), and a protective cover (108) is hingedly assembled on the top of the friction coefficient meter (1).
3. The plastic film detection device according to claim 2, characterized in that: The top of the friction coefficient meter (1) is slidably assembled with a transmission mechanism (105), and the side wall at the end of the transmission mechanism (105) is detachably assembled with a slider (106).
4. The plastic film detection device according to claim 1, characterized in that: A clamping block (112) is fixedly provided on the surface of the test bench (104) and on the inner side of one end of the side slide groove (110), and a clamping hook (213) is elastically hinged on the outer wall of one end of the shifting block (210). The clamping hook (213) is hooked with the corresponding clamping block (112) and is used to temporarily fix the shifting block (210).
5. The plastic film detection device according to claim 1, characterized in that: A central groove (214) is provided through the central axis of the outer membrane pressure body (205), and a rubber wheel rod (218) is rotatably installed inside the central groove (214).
6. The plastic film detection device according to claim 5, characterized in that: The outer wall of the membrane outer pressure body (205) facing away from the membrane inner support body (202) is rotatably mounted with a shifting rod (216) via a support (215), and the two ends of the shifting rod (216) are connected to the two ends of the rubber wheel rod (218) through a sleeved belt (217).
7. The plastic film detection device according to claim 1, characterized in that: When the penetration rod (209) slides along the straight section of the inclined groove (111), the outer pressure body (205) of the membrane approaches and clamps one end of the film sample (3) toward the inner support body (202) of the membrane. When the penetration rod (209) slides along the arc section of the inclined groove (111), one end of the film sample (3) is in a pulled state.