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Film pneumatic punching method and corresponding equipment

A film and punching technology, which is applied in the field of film air pressure punching and corresponding equipment, can solve the problems of complex process, electrolyte pollution, high cost, etc., and achieve the effect of no burr in the cut, low cost and smooth chip removal

Inactive Publication Date: 2011-04-27
ZHEJIANG CHANGYUDA PHOTOELECTRIC COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this method, the protective film made of corrosion-resistant material must be coated on the aluminum foil first, and micropores are formed on the protective film, then the holes are electrolytically etched, and the protective film is finally removed. The process is complicated, the cost is high, and it is easy to produce electrolysis liquid contamination

Method used

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  • Film pneumatic punching method and corresponding equipment
  • Film pneumatic punching method and corresponding equipment
  • Film pneumatic punching method and corresponding equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0036] Implementation mode one: if Figure 1-3 Shown, this thin film air pressure punching method comprises the following steps:

[0037] ①. Use the upper mold 1 to press the film 2 tightly on the lower mold 4 with multiple air cavity holes 3. On the lower surface of the upper mold 1, there are positions opposite to the air cavity holes 3, and the size and number are the same as the air cavity holes 3. The same through-holes 5, the above-mentioned through-holes 5 are all communicated with an air intake chamber 6, and the air intake chamber 6 is communicated with a high-pressure air source through an air valve, and the upper mold 1, the lower mold 4 and the film 2 are all air-tight; Seal the lower end of the air cavity hole 3 with a movable seal 7;

[0038] ②, and then pass high-pressure gas 8 into the air inlet cavity 6 of the upper mold 1, and the high-pressure gas 8 breaks through the film at each air cavity hole 3 and enters the air cavity hole 3 to realize punching;

[0...

Embodiment approach 2

[0041] Implementation mode two: if Figure 4-6 Shown: the film punching equipment of the present invention includes an air compressor (not shown in the figure), a lower die 4, an upper die 1 and a movable seal 7, wherein the lower die 4 and the upper die 1 are respectively arranged on the upper and lower sides of the film 2 , the lower mold 4 is provided with a plurality of air cavity holes 3, and the upper mold 1 is arranged on a lifting table 9, and the lower surface thereof is provided with a position opposite to the air cavity holes 3, the size and number of which are the same as those of the air cavity holes 3 The same through holes 5, above-mentioned through holes 5 communicate with an air intake cavity 6, the air intake cavity 6 communicates with the high-pressure gas outlet of the air compressor through an air valve, and the movable seal 7 is arranged on the lower mold 4 Below, and be equipped with driving cylinder, can block the air chamber hole 3 lower ends.

[0042...

Embodiment approach 3

[0046] Embodiment 3: The upper mold 1 is provided with an air inlet chamber 7 opposite to the area where the air cavity hole 3 is located. The air inlet chamber 7 communicates with a high-pressure air source through an air valve. The rest of the steps are similar to Embodiment 1, omitted.

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Abstract

The invention relates to a film pneumatic punching method and equipment, which is particularly suitable for punching on metal foils. In the traditional mechanical punching method, damages are easy to cause and notches are rough, and in a metal hole-corrosion method, a process is complex, has high cost and is easy to generate electrolyte pollution. Thus, the blasting film punching method provided by the invention comprises the following steps of: 1, tightly pressing films on a bottom die provided with a plurality of gas cavity holes by using a top die; 2, then introducing high-pressure gas into an intake cavity of the top die to break through the films at all gas cavity holes to enter the gas cavity holes so as to realize punching; 3, cutting off a high-pressure gas source; and 4, finally, moving away a movable sealing piece to exhaust the high-pressure gas and punchings. The invention also relates to corresponding film punching equipment. The blasting film punching method and the corresponding equipment have the advantages of no oil stain, low cost, even notch without burrs and smooth punchings exhausting and are suitable for punching on various films, particularly metal foils.

Description

technical field [0001] The invention relates to a film punching method and equipment, which is especially suitable for punching holes on metal foil. Background technique [0002] The Chinese utility model patent published on October 22, 2003 with the publication number CN 2582182Y discloses a "collector for a polymer lithium ion battery". The cathode collector is punched aluminum foil, and the anode collector is punched. Copper foil, this kind of battery has a larger capacity. [0003] Existing punching technologies on metal foil include: 1) mechanical punching method; 2) metal pitting method. [0004] The mechanical punching method relies on a needle bed densely covered with punching needles and a densely punched hole bed with punching, which is easy to damage, and the cut is rough, oily, chip removal is not smooth, and the film thickness is less than 5 filaments (ie 0.05mm). There is simply no way to punch holes mechanically. [0005] The metal pitting method disclosed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26F1/26
Inventor 袁秋生
Owner ZHEJIANG CHANGYUDA PHOTOELECTRIC COMM
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