Unlock instant, AI-driven research and patent intelligence for your innovation.

Constant tension system and method for preventing under-stretching of cold-pressed transition belt of diaphragm based on constant tension system

A technology of constant tension and diaphragm, which is applied in the directions of winding strips, thin material processing, transportation and packaging, etc. It can solve the problems of deviation of pre-slitting width, failure of correction device, and wrinkling of diaphragm, etc., to achieve optimal cathode The effect of improving the efficiency, avoiding wrinkling, and improving the anode efficiency

Active Publication Date: 2019-04-23
UNITED AUTO BATTERY CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] After the anode is rewound and spliced, the unextended blank area at the end of the roll shrinks and overlaps, which causes the correction device to fail and swing during pre-slitting, resulting in abnormal conditions such as diaphragm wrinkling, pre-slitting width deviation, and broken tape. , fixed loss 4EA / roll

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Constant tension system and method for preventing under-stretching of cold-pressed transition belt of diaphragm based on constant tension system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 Shown, a kind of constant tension system, it comprises unwinding part 1, front tension cut-off device 2, front tension stretching device 3, roll set 4, back tension stretching device 5, back tension cutoff device 6 and take-up arranged in sequence Rolling part 7, unwinding part 1 The unrolled film passes through the front tension cut-off device 2, the front tension stretching device 3, the roll group 4, the back tension stretching device 5 and the back tension cut-off device 6, and finally passes through the winding part 7 rewinding.

[0026] Such as figure 1 As shown, the front tension stretching device 3 and the rear tension stretching device 5 are both tension swing rollers. Specifically, the tension pendulum roller controls the magnitude of its tension through the thrust of the cylinder.

[0027] Such as figure 1 As shown, both the front tension breaking device 2 and the rear tension breaking device 6 include a set of nip rollers.

[0028] Such...

Embodiment 2

[0031] A method for avoiding underextension of a diaphragm cold pressure transition zone, based on a constant tension system, wherein,

[0032] After the production of the previous film roll is completed and before the production of the next film roll, the head of the next film roll is connected to the tail of the previous film roll with tape to form a joint;

[0033] When the splicing joint moves to the back of the front tension stretching device 3 and before the roll group 4, open the two rolls in the roll group 4, and the tension of the front tension stretching device 3 and the rear tension stretching device 5 will be automatically balanced to normal Production film tensile tension;

[0034] After the splicing joint passes through the roll group 4, the two rolls in the roll group 4 are closed, and the tension of the front tension stretching device 3 and the rear tension stretching device 5 is adjusted to the automatic balance before continuing normal production.

[0035] I...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a constant tension system and a method for preventing under-stretching of a cold-pressed transition belt of a diaphragm based on the constant tension system. The constant tension system comprises an unreeling part, a front tension partitioning device, a front tension stretching device, a roller set, a rear tension stretching device, a rear tension partitioning device and areeling part, all of which are sequentially arranged. The diaphragm unreeled by the unreeling part sequentially passes through the front tension partitioning device, the front tension stretching device, the roller set, the rear tension stretching device and the rear tension partitioning device and finally is reeled by the reeling part. According to the constant tension system, the stretching consistency of the diaphragm can be guaranteed, then losses are effectively reduced, and the yield is increased.

Description

technical field [0001] The invention relates to a constant tension system and a method for avoiding under-extension of a diaphragm cold pressure transition zone based on the constant tension system. Background technique [0002] The traditional cold-press tension system only has one tension stretching device. The cold-press changes rolls and connects the strips. Before the joints reach the rolls, in order to avoid loss of rolls at the joints and breakage of the film rolls, the rolls need to be opened. There is no tension cut-off for the rolls. Keep consistent with the unwinding tension, the system automatically weakens the tension of the tension stretching device to the unwinding tension. After the joint passes through the roll, there is a blank area of ​​the diaphragm that is equal to the distance from the transition belt and the cathode is easily broken. The belt and the anode are prone to shrinkage and overlapping of the rollers in the blank area, causing the correction d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B65H19/18B65H23/14B65H23/34
CPCB65H19/18B65H23/14B65H23/34
Inventor 王灏骆昌胜童杰张盛武
Owner UNITED AUTO BATTERY CO LTD