Aluminum-plastic film shell-punching residual stress on-line detection method
A technology of residual stress and detection method, which is applied in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve problems such as bad batches, bad curls, and failure to detect them in time, and achieve the effect of avoiding bad batches
Pending Publication Date: 2020-11-24
LIYANG EXCELLENCE NEW MATERIAL TECH CO LTD
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Problems solved by technology
[0003] The existing residual stress detection method is offline detection and evaluation, which is evaluated by measuring the angles of side seals and top seals. However, when curling occurs, the residual stress after punching the aluminum-plastic film cannot be accurately evaluated; Batteries are all highly automated continuous production, there is no personnel inspection process in the middle, and when there is a curl defect, it cannot be found in time, resulting in the production of batch defective products
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[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the indicated position or element must have a specific orientation or be constructed in a specific orientation. and operation, and therefore should not be construed as limiting the invention.
[0022] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or e...
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The invention provides an aluminum-plastic film shell-punching residual stress on-line detection method, wherein the method comprises the following steps: step 1, punching a shell by an aluminum-plastic film, so as to complete the shell punching of the aluminum-plastic film by a shell punching mechanism; step 2, carrying out CCD photographing, and completing photographing of pictures of a side sealing edge and a top sealing edge of the aluminum-plastic film after shell punching by a camera; step 3, calculating the curling area, and obtaining the curling area S1 of the side sealing edge and thecurling area S2 of the top sealing edge through integral calculation according to the shot pictures of the side sealing edge and the top sealing edge; and step 4, calculating the curling degree, andaccording to the formula R=K1S1+K2S2+b, calculating to obtain the aluminum-plastic film punched shell crimp degree R, wherein K1 is a coefficient related to S1, K2 is a coefficient related to S2, b isa formula correction number, and values of K1, K2 and b are obtained through normalization of a data simulation graph before the crimp degree R is calculated. According to the method, on-line detection can be achieved, the residual stress after shell punching of the aluminum-plastic film can be accurately evaluated, poor curling can be found in time, and batch defective products are avoided.
Description
technical field [0001] The invention relates to the technical field of aluminum-plastic film production equipment, in particular to an on-line detection method for aluminum-plastic film shell punching residual stress. Background technique [0002] The aluminum-plastic film is mainly composed of nylon layer, aluminum foil layer and CPP layer. Due to the different stress of the raw material nylon layer and CPP layer, and the effect of tension on the equipment during the composite process of nylon layer, aluminum foil layer and CPP layer, it will affect the The aluminum-plastic film causes a certain tensile deformation to produce residual stress, which will be released when the aluminum-plastic film is punched, resulting in different degrees of curling. The residual stress is proportional to the degree of curling, that is, the greater the residual stress, the greater the degree of curling. bigger. [0003] The existing residual stress detection method is offline detection and ...
Claims
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IPC IPC(8): G01L5/00G01B11/24G01B11/28
CPCG01B11/24G01B11/285G01L5/0047
Inventor 柯余霖刘剑光张武林
Owner LIYANG EXCELLENCE NEW MATERIAL TECH CO LTD