阅读说明：本技术 一种红外探测器冷屏自动发黑装置、发黑方法 (Automatic blackening device and blackening method for cold screen of infrared detector ) 是由 方志浩 张磊 付志凯 于 2020-05-08 设计创作，主要内容包括：本发明公开了一种红外探测器冷屏自动发黑装置及发黑方法,本发明通过固定支架来固定转动器,并通过转动器的转动带动悬挂架上的产品进行发黑处理,可以有效改善现有人工发黑工艺的不稳定性,且参数定量化生产工艺的实现可以极大降低产品质量的离散性,并可将冷屏发黑效率提高10倍以上,从而满足日益增长的市场需求,进而有助于提高红外探测器制造工艺水平和产品控制能力,降低红外探测器制造成本。(The invention discloses an automatic blackening device and a blackening method for a cold screen of an infrared detector, wherein a rotator is fixed through a fixed support, and a product on a suspension bracket is driven to carry out blackening treatment through the rotation of the rotator, so that the instability of the conventional manual blackening process can be effectively improved, the discreteness of the product quality can be greatly reduced by realizing the quantitative parameter production process, the blackening efficiency of the cold screen can be improved by more than 10 times, the ever-increasing market demand can be met, the improvement of the manufacturing process level and the product control capability of the infrared detector is facilitated, and the manufacturing cost of the infrared detector is reduced.)

1. The utility model provides an automatic device that blackens of infrared detector cold shield which characterized in that includes: the device comprises a fixed support, a rotator and a suspension bracket;

the fixed bracket is used for fixing the rotator;

a plurality of suspension brackets are arranged on the rotator,

one end of the suspension bracket is connected with the rotator, and the other end of the suspension bracket is connected with the cold shield;

and the suspension bracket is driven to rotate by the reciprocating motion of the rotator so as to blacken the cold screen on the electrophoresis equipment.

2. The apparatus of claim 1, wherein the fixed bracket further comprises: a base, a column and a beam;

the first end of each upright post is connected with the base, and the second end of each upright post is connected through the cross beam;

and a fixer is arranged on the cross beam, and the rotator is fixed through the fixer.

3. The device of claim 2, further comprising a driver;

the beam is provided with a mounting plate, the driver is fixed on the mounting plate, and the rotator is driven by the driver to perform reciprocating motion.

4. The apparatus of claim 3,

the driver is a motor.

5. The apparatus according to any one of claims 1 to 4,

the rotator is a crankshaft.

6. The apparatus of claim 5,

the suspension bracket is a steel wire, one end of the steel wire is fixed on the crankshaft, and the other end of the steel wire is bound on the cold shield.

7. The apparatus according to any one of claims 1 to 4,

the electrophoresis equipment is an electrophoresis beaker.

8. A method for blackening a cold screen by using the automatic cold screen blackening device of the infrared detector as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:

binding the pretreated cold screen on a suspension bracket;

and driving the rotator to reciprocate according to a preset speed so as to drive the cold screen on the suspension bracket to rotate, and finishing blackening treatment of the cold screen.

9. The method of claim 8, wherein said driving said rotator in a reciprocating motion at a predetermined speed comprises:

and driving the rotator to reciprocate according to a preset speed through a driver.

10. The method according to claim 8 or 9,

the preset speed is 8-10 r/min.

Technical Field

The invention relates to the technical field of infrared detection, in particular to an automatic blackening device and a blackening method for a cold screen of an infrared detector.

Background

The infrared focal plane detector is a core component of the current infrared imaging technology, and the performance of the infrared focal plane detector directly determines the imaging quality. In an infrared imaging system, a cold screen is arranged near a detector chip and used as a field square diaphragm to limit the field angle, so that the signal-to-noise ratio of the detector chip can be improved, and the effects of reducing background noise and reducing background luminous flux are achieved. The process requires that the inner surface of the cold shield is blackened, so that the diffuse reflection of the inner surface is increased, and the absorption capacity of stray light is improved.

In recent years, with the continuous maturation and development of infrared detection technology and the continuous expansion of infrared detector users and markets, the requirements on the capacity and quality stability of infrared detector manufacturers are higher and higher. Meanwhile, the market competition is intensified by the entrance of a plurality of civil infrared enterprises, and the cost control becomes an extremely important ring. The conventional process for blackening the cold screen is cathode electrophoresis blackening, and qualified blackening of a complex cold screen part with a light blocking ring can be realized. However, the process is mainly manually completed by technicians with experience and skilled skills in many years of work, and the quality stability of the artificial blackening product needs to be further improved.

Disclosure of Invention

The invention provides an automatic blackening device and a blackening method for a cold screen of an infrared detector, and aims to solve the problem of poor quality stability of products caused by artificial blackening in the prior art.

In a first aspect, the present invention provides an automatic black device for a cold screen of an infrared detector, comprising: the device comprises a fixed support, a rotator and a suspension bracket;

the fixed bracket is used for fixing the rotator;

a plurality of suspension brackets are arranged on the rotator,

one end of the suspension bracket is connected with the rotator, and the other end of the suspension bracket is connected with the cold shield;

and the suspension bracket is driven to rotate by the reciprocating motion of the rotator so as to blacken the cold screen on the electrophoresis equipment.

Optionally, the fixing bracket further comprises: a base, a column and a beam;

the first end of each upright post is connected with the base, and the second end of each upright post is connected through the cross beam;

and a fixer is arranged on the cross beam, and the rotator is fixed through the fixer.

Optionally, the apparatus further comprises a driver;

the beam is provided with a mounting plate, the driver is fixed on the mounting plate, and the rotator is driven by the driver to perform reciprocating motion.

Optionally, the drive is a motor.

Optionally, the rotator is a crankshaft.

Optionally, the suspension bracket is a steel wire, one end of the steel wire is fixed to the crankshaft, and the other end of the steel wire is bound to the cold shield.

Optionally, the electrophoresis apparatus is an electrophoresis beaker.

In a second aspect, the present invention provides a method for performing black processing on a cold screen by using any one of the above infrared detector cold screen automatic black devices, including:

binding the pretreated cold screen on a suspension bracket;

and driving the rotator to reciprocate according to a preset speed so as to drive the cold screen on the suspension bracket to rotate, and finishing blackening treatment of the cold screen.

Optionally, the driving the rotator to reciprocate at a preset speed includes:

and driving the rotator to reciprocate according to a preset speed through a driver.

Optionally, the preset speed is 8-10 rpm.

The invention has the following beneficial effects:

according to the invention, the rotator is fixed through the fixed support, and the product on the suspension bracket is driven to carry out blackening treatment through the rotation of the rotator, so that the instability of the existing manual blackening process can be effectively improved, the discreteness of the product quality can be greatly reduced by realizing the quantitative parameter production process, and the cold screen blackening efficiency can be improved by more than 10 times, so that the ever-increasing market demand is met, the improvement of the manufacturing process level and the product control capability of the infrared detector is facilitated, and the manufacturing cost of the infrared detector is reduced.

Drawings

FIG. 1 is a flow chart of a cold shield blackening process according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an automatic black device of a cold shield according to an embodiment of the present invention;

FIG. 3 is a schematic illustration of a crankshaft configuration according to an embodiment of the present invention;

the attached drawings are as follows: the electrophoresis device comprises a base 1, a stand column 2, a cross beam 3, a motor mounting plate 4, a servo motor 5, a rigid coupling 6, a bearing 7, a bearing seat 8, a crankshaft 9, a bearing seat mounting plate 10 and an electrophoresis beaker 11.

Detailed Description

According to the embodiment of the invention, the rotator is fixed through the fixed support, and the product on the suspension bracket is driven to carry out blackening treatment through the rotation of the rotator, so that the instability of the conventional manual blackening process can be effectively improved, and the discreteness of the product quality can be greatly reduced through the realization of the parameter quantification production process. The present invention will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

The embodiment of the invention provides an automatic black device for a cold screen of an infrared detector, as shown in figure 1, comprising: the device comprises a fixed support, a rotator and a suspension bracket;

the fixed bracket is used for fixing the rotator;

a plurality of suspension brackets are arranged on the rotator,

one end of the suspension bracket is connected with the rotator, and the other end of the suspension bracket is connected with the cold shield;

and the suspension bracket is driven to rotate by the reciprocating motion of the rotator so as to blacken the cold screen on the electrophoresis equipment.

That is to say, the embodiment of the invention fixes the rotator through the fixed bracket and drives the product on the suspension bracket to carry out blackening treatment through the rotation of the rotator, so that the instability of the existing artificial blackening process can be effectively improved, and the discreteness of the product quality can be greatly reduced through the realization of the parameter quantification production process