System for analyzing impact and puncture resistance

Patent metadata

Field	Value
Publication number	US-11441985-B2
Application number	US-201816630740-A
Country	US
Kind code	B2
Filing date	Apr 30, 2018
Priority date	Jul 31, 2017
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

A method and a system for analyzing a physical characteristic of a film sample are described herein. The system includes a material holder system configured to hold the film sample; a dart testing system configured to test a physical characteristic of the film sample; and a moving system configured to move the held film sample to be analyzed or tested between stations. The moving system is configured to move the held film sample in the material holder system to the dart testing system.

First claim

The invention claimed is:

1. A system for analyzing a physical characteristic of a film sample, the system comprising:
a material holder system configured to hold the film sample;
a dart testing system configured to test a physical characteristic of the film sample; and
a moving system configured to move the held film sample to be analyzed or tested between stations,
wherein the moving system is configured to move the held film sample in the material holder system to the dart testing system from a different station.

2. The system according to claim 1 , wherein the moving system comprises an articulating-arm robotic system.

3. The system according to claim 1 , wherein the material holder system includes a vacuum suction system configured to hold the film through vacuum suction, wherein the film sample has a quadrilateral shape with four corners and the vacuum suction system comprises a first pair of suction cups and a second pair of suction cups configured to hold the film sample substantially on each corner of the film sample.

4. The system according to claim 3 , wherein the vacuum suction system comprises a first pair of suction cups and a second pair of suction cups configured to hold and place the film sample to be tested, and a third pair of suction cups configured to pick up a previously tested film sample.

5. The system according to claim 1 , further comprising a material thickness measurement system configured to measure a thickness of the film sample.

6. The system according to claim 5 , wherein the material thickness measurement system comprises a probe configured to measure a thickness of the film sample over a spread area to avoid puncturing the film sample during the measurement.

7. The system according to claim 1 , wherein the dart testing system comprises a clamping system having an upper jaw and a lower jaw, wherein the upper jaw and the lower jaw each comprise grooves and ridges, and ridges in one of the upper and lower jaw are configured to fit into grooves of the other of the upper and lower jaw.

8. The system according to claim 7 , wherein one of the upper jaw and the lower jaw comprises a holding mechanism configured to hold the film sample in place while the clamping system is open.

9. The system according to claim 1 , wherein the dart testing system comprises a dart probe mechanism configured to test a physical characteristic of the film sample.

10. The system according to claim 9 , wherein the dart probe mechanism comprises a dart probe and a propulsion system configured to move the dart probe.

11. The system according to claim 10 , wherein the propulsion system comprises a linear motor.

12. The system according to claim 9 , wherein the dart probe mechanism comprises a piezoelectric force sensor connected to the dart probe, the piezoelectric force sensor being configured to measure a force signal during a dart test of the film sample.

13. The system according to claim 1 , further comprising a computer system in communication with the dart testing system, the computer system being configured to acquire force data from the dart testing system.

14. The system according to claim 1 , further comprising a material image analyzer system configured to detect a defect in the film sample.

15. A method for analyzing a physical characteristic of a film sample, the method comprising:
holding the film sample by a material holder system connected to a moving system;
moving the film sample by the moving system to a dart testing system from a different station; and
testing a physical characteristic of the film of the material using the dart testing system.

16. The method according to claim 15 , wherein testing the physical characteristic of the film sample comprises holding the film sample taut and unstressed during the testing using a clamping system of the dart testing system.

17. The method according to claim 15 , wherein testing the physical characteristic of the film sample comprises puncturing the film sample with a dart probe of the dart testing system and measuring a force during testing of the film sample.

18. The method according to claim 15 , further comprising:
moving the film sample by the moving system from the dart testing system to a material thickness measurement system; and
measuring a thickness of the film sample using the material thickness measurement system.

19. The method according to claim 15 , further comprising:
moving the film sample by the moving system from the dart testing system to a material image analyzer system; and
detecting a defect in the film sample using the material image analyzer system.

20. A method for analyzing a physical characteristic of a film sample, the method comprising:
picking up the film sample by a robotic system connected to a moving system;
moving the film sample by the moving system to a dart testing system;
placing the film sample by the robotic system in a clamp of the dart testing system;
testing a physical characteristic of the film of the material using the dart testing system;
picking up the film sample by the robotic system from the clamp of the dart testing system; and
moving the film sample by the moving system from the dart testing system to another station.

Assignees

• Dow Global Technologies Llc
• Rohm & Haas

Inventors

• Mccarty Ii Donald L
• Sutanto Erick
• Lund John
• Glad Brayden E
• Singh Hitendra

Classifications

• G01N35/0099

  comprising robots or similar manipulators (robots per se B25J) · CPC title

• G01N2203/0447

  Holders for quick insertion/removal of test pieces · CPC title

• G01N3/42 Primary

  by performing impressions under a steady load by indentors, e.g. sphere, pyramid (G01N3/54 takes precedence) · CPC title

• G01N2203/0067

  Fracture or rupture · CPC title

• G01N2203/0282

  Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes · CPC title