阅读说明：本技术 监视相机装置 (Monitoring camera device ) 是由 关谷宏 坂田人丸 村山皓士 于 2020-03-18 设计创作，主要内容包括：本发明提供一种能够对高温环境下的装置实现稳定的拍摄的监视相机装置。本发明是一种监视相机装置(A),用于对高温环境下的装置进行监视,其具备：监视相机(1)；外壳部(3),其中内置有监视相机(1)；以及冷却用空气管(8),其用于向外壳部(3)内导入空气。外壳部(3)具有圆筒状的主体部(31)和安装在该主体部(31)的后端的后盖部(7)。在后盖部(7)安装有冷却用空气管(8)。(The invention provides a monitoring camera device capable of stably shooting a device in a high-temperature environment. The present invention is a monitoring camera device (a) for monitoring a device in a high-temperature environment, comprising: a surveillance camera (1); a housing section (3) in which a monitoring camera (1) is built; and a cooling air pipe (8) for introducing air into the housing (3). The housing part (3) has a cylindrical body part (31) and a rear cover part (7) attached to the rear end of the body part (31). A cooling air pipe (8) is attached to the rear cover part (7).)

1. A monitoring camera device for monitoring a device in a high-temperature environment, comprising:

a surveillance camera;

a housing portion in which the monitoring camera is built; and

a cooling air pipe for introducing cooling air into the housing part,

the housing part has a cylindrical body part and a rear cover part attached to the rear end of the body part,

the cooling air pipe is attached to the rear cover portion.

2. The monitoring camera device of claim 1,

further comprises a front cover part mounted on the front end of the main body part,

the front cover part is provided with an opening part,

the cooling air is discharged from the opening.

3. The monitoring camera device according to claim 1 or 2,

further comprises an inner shell part which is arranged in the shell part,

the monitoring camera is built in the inside housing part.

4. The monitoring camera device of claim 3,

the rear cover portion supports the inner shell portion,

a gap portion is provided between the outer shell portion and the inner shell portion,

the cooling air flows through the gap portion.

5. The monitoring camera device according to claim 3 or 4,

a table portion is provided at the inner housing portion,

the monitoring camera is placed on the stage portion so as not to contact an inner wall of the inner side case portion.

6. The monitoring camera device according to any one of claims 1 to 5,

a heat insulating material is embedded in the main body portion along the circumferential direction.

7. The monitoring camera device according to any one of claims 1 to 6,

further comprises an air blowing section including a blowing air pipe attached to the rear cover section and a nozzle section attached to a tip end of the blowing air pipe,

the nozzle portion is capable of blowing air to at least the front of the monitoring camera.

8. The monitoring camera device according to any one of claims 1 to 7,

the paper machine is used in the dryer cover of the paper machine under the high temperature environment with the temperature above 45 ℃.

Technical Field

The present invention relates to a monitoring camera device, and more particularly, to a monitoring camera device capable of stably photographing a device even in a high-temperature environment.

Background

Devices used in various industrial fields may have problems in manufacturing due to continuous use.

For example, in a paper making process, an apparatus such as a paper machine is used.

The continuous paper making process causes a problem that resin (contaminants) derived from pulp raw materials (including old paper pulp) adheres to the structural members of the paper machine.

Then, the contaminants are transferred to adhere to the wet paper, causing contamination of the wet paper and even breaking of the paper.

In order to prevent such a phenomenon, a monitoring system for monitoring a generation site of wet paper contamination or paper breakage is known.

For example, there is known a paper quality monitoring apparatus including: a camera that extracts a moving sheet as a stationary two-dimensional image; an A/D converter which receives the output of the camera; a memory that accepts an output of the A/D converter; a first image signal processing device connected to the memory, which issues a call instruction to the memory and inputs information thereof, and performs texture analysis by frequency analysis and standard deviation processing; a second image signal processing device which receives the digital information from the memory according to the call instruction of the first image signal processing device and analyzes the defect of the paper; a third image signal processing device which receives the digital information from the memory and analyzes the paper article; a computing device for receiving the outputs of the first to third image signal processing devices and signals of the jet speed, the wire speed and the raw material concentration of the paper machine, and analyzing the correlation between the jet speed, the wire speed and the raw material concentration, the texture index and the stripe; and a display device connected to the arithmetic device and displaying an output thereof. (see, for example, patent document 1).

Documents of the prior art

Patent documents:

patent document 1: japanese patent publication No. Hei 07-122616

Disclosure of Invention

Problems to be solved by the invention

In the drying section of the papermaking process, the wet paper is dried inside a dryer cover covering a drying roll, a canvas roll or a canvas roll. In this case, since the wet paper is conveyed at a high speed, contaminants may be scattered and may adhere to not only the wet paper but also the structural members inside the dryer cover. Also, when contaminants adhere to the structural members inside the dryer cover, the contaminants may drop, transfer to the wet paper, etc., with the result that wet paper contamination is caused.

However, since the inside of the dryer cover is in a high temperature state, it is difficult to perform photographing using a general monitoring camera.

The quality monitoring device described in patent document 1 is not suitable for monitoring the inside of the dryer cover of a paper machine in a high-temperature environment, because it uses a camera to photograph a finished paper sheet.

If the camera is used to shoot the inside of the dryer cover of the paper machine, the camera may be mistaken due to high temperature, and shooting for monitoring cannot be continued.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a monitoring camera device capable of imaging a device in a high-temperature environment and capable of stably imaging.

Means for solving the problems

The present inventors have found that the above problems can be solved by adopting a configuration in which a monitoring camera is incorporated in a housing part and air for cooling is introduced into the housing part, and have completed the present invention.

A first aspect of the present invention is a monitoring camera device for monitoring a device in a high-temperature environment, including: a surveillance camera; a housing portion in which the monitoring camera is built; and a cooling air pipe for introducing cooling air into the casing part, wherein the casing part comprises a cylindrical body part and a rear cover part mounted on the rear end of the body part, and the cooling air pipe is mounted on the rear cover part.

A second aspect of the present invention provides the monitoring camera device according to the first aspect, further comprising a front cover portion attached to a front end of the main body portion, wherein the front cover portion is provided with an opening portion through which cooling air is discharged.

A third aspect of the present invention provides the monitoring camera device according to the first or second aspect, further comprising an inner case portion built in the case portion, wherein the monitoring camera is built in the inner case portion.

A fourth aspect of the present invention provides the monitoring camera device according to the third aspect, wherein the rear cover portion supports the inner case portion, a gap portion is provided between the outer case portion and the inner case portion, and air for cooling flows through the gap portion.

A fifth aspect of the present invention provides the monitoring camera device according to the third or fourth aspect, wherein a stage portion is provided on the inner housing portion, and the monitoring camera is placed on the stage portion so as not to contact an inner wall of the inner housing portion.

A sixth aspect of the present invention provides the monitoring camera device according to any one of the first to fifth aspects, wherein a heat insulating material is embedded in the main body portion along the circumferential direction.

A seventh aspect of the present invention provides the monitoring camera device according to any one of the first to sixth aspects, further comprising an air blowing section including a blowing air duct attached to the rear cover section and a nozzle section attached to a tip end of the blowing air duct, the nozzle section being capable of blowing air to at least a front side of the monitoring camera.

An eighth aspect of the present invention provides the monitoring camera device according to any one of the first to seventh aspects, wherein the monitoring camera device is used inside a dryer cover of a paper machine in a high temperature environment having a temperature of 45 ℃ or higher.

Effects of the invention

The monitoring camera device of the present invention is provided with a housing part having a built-in monitoring camera, thereby preventing as much as possible the adhesion of contaminants to the monitoring camera and the conduction of heat to the monitoring camera.

In this case, in the monitoring camera device according to the present invention, the cooling air is introduced into the case from the cooling air pipe attached to the rear cover portion, so that the inside of the case can be cooled.

Further, by the introduced air, entry of contaminants into the housing portion can be suppressed.

Accordingly, the monitoring camera device of the present invention can stably photograph the inside of the dryer cover of the paper machine even in a high-temperature environment.

In the monitoring camera device of the present invention, the opening portion is provided in the front cover portion, whereby cooling air flows in from the rear cover portion side and is discharged from the opening portion. That is, the cooling air does not circulate but flows in one direction.

Accordingly, the monitoring camera device can always cool the monitoring camera by using fresh air for cooling. Further, since the air for cooling is discharged to the front of the monitoring camera device, it is possible to more effectively prevent the entry of the dyeing material into the housing portion from the front of the housing portion. As a result, it is possible to prevent contaminants from adhering to a lens or the like located on the front side of the monitoring camera.

The monitoring camera device of the present invention further includes an inner case portion built in the case portion, and a dual structure of the case portion and the inner case portion exists outside the monitoring camera by building the monitoring camera in the inner case portion.

Accordingly, heat conduction to the monitoring camera can be more efficiently prevented.

Further, it is also possible to more efficiently prevent contaminants from adhering to the monitoring camera.

In this case, by providing the gap portion between the case portion and the inner case portion, an air layer having a low thermal conductivity is formed between the case portion and the inner case portion, and thus heat conduction from the outside of the case portion to the monitoring camera can be more efficiently prevented.

When the gap portion is not provided, heat conducted to the outer shell portion may be conducted to the inner outer shell portion.

In the monitoring camera device of the present invention, the contact area between the inner case portion and the monitoring camera can be reduced as much as possible by placing the monitoring camera on the table portion so as not to contact the inner wall of the inner case portion. Accordingly, even if heat has been conducted to the inner case portion, the heat is prevented from being conducted to the monitoring camera.

In the monitoring camera device of the present invention, the heat insulating material is embedded in the circumferential direction of the main body, thereby suppressing the heat of the outer shell itself. This makes it possible to prevent heat from the outside from being conducted to the monitoring camera built in the housing portion.

In the monitoring camera device of the present invention, since the air blowing section can blow air to at least the front of the monitoring camera, it is possible to more favorably prevent contaminants from adhering to a lens or the like located on the front side of the monitoring camera.

The monitoring camera device of the present invention is preferably used in a high temperature environment having a temperature of 45 ℃ or higher, such as the inside of a dryer cover of a paper machine.

Drawings

Fig. 1 is a perspective view showing a monitoring camera device of the present embodiment.

Fig. 2 is a perspective view showing the monitoring camera device of the present embodiment in an exploded manner.

Fig. 3 is a side sectional view showing the monitoring camera device of the present embodiment.

Fig. 4 is a front view showing the monitoring camera device of the present embodiment.

Fig. 5 is a schematic diagram for explaining the structure of a paper machine in which the monitoring camera device of the present embodiment is mounted in a monitoring camera system.

Fig. 6 is a perspective view showing a monitoring camera apparatus of another embodiment.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings as required.

In the drawings, the same elements are denoted by the same reference numerals, and redundant description thereof is omitted.

The positional relationships such as up, down, left, and right are based on the positional relationships shown in the drawings unless otherwise noted.

Further, the dimensional scale of the drawings is not limited to the illustrated scale.

The monitoring camera device a of the present invention is used for monitoring a device, and is installed inside a dryer cover of a paper machine, for example, and monitors the inside of the dryer cover. The structure of the interior of the dryer cover will be described later.

Here, the inside of the dryer cover of the paper machine is generally in an environment at a temperature of at least 45 ℃. Further, the typical monitoring camera has a withstand temperature of 45 ℃ or lower.

The monitoring camera device a can perform stable imaging in the above-described environment, and can monitor the occurrence of wet paper contamination or paper breakage.

It should be noted that the monitoring camera device a is preferably used even in an environment where the temperature is 60 ℃ or higher, or even 80 ℃ or higher. In addition, the monitoring camera device a is preferably used in a high-temperature environment, and in a humid environment having a dew point temperature of 45 ℃ or higher, or even 60 ℃ or higher.

Fig. 1 is a perspective view showing a monitoring camera apparatus a of the present embodiment.

As shown in fig. 1, the monitoring camera apparatus a includes: a monitoring camera, a housing 3 in which the monitoring camera is built, a cooling air pipe 8 for introducing cooling air into the housing 3, an air blowing unit 5 attached to the housing 3, a frame 91 for fixing the housing 3, and a seat 92 provided below the housing 3.

As described above, in the monitoring camera apparatus a, the monitoring camera 1 is incorporated in the housing portion 3, and cooling air can be introduced into the housing portion 3 through the cooling air duct 8. Accordingly, the monitoring camera device a can perform shooting in a high-temperature environment.

In the monitoring camera apparatus a, the air blowing unit 5 can blow air to at least the front side of the monitoring camera 1. Accordingly, it is possible to more effectively prevent contaminants from adhering to a lens or the like located on the front side of the monitoring camera 1.

In the present specification, the contaminants include resins, paper powder, and the like floating in the air.

Fig. 2 is a perspective view showing the monitoring camera apparatus a of the present embodiment in an exploded manner. Fig. 3 is a side sectional view showing a monitoring camera apparatus a of the present embodiment. In fig. 2, a single-dot chain line shows a connection relationship between the respective components. In the present specification, the imaging direction of the monitoring camera device a is defined as the front (left side of the paper surface in fig. 3), and the opposite direction is defined as the rear (right side of the paper surface in fig. 3).

As shown in fig. 2 and 3, in the monitoring camera apparatus a, an inner case portion 4 is incorporated in a case portion 3, and a monitoring camera 1 is incorporated in the inner case portion 4. That is, a double structure of the case portion 3 and the inner case portion 4 exists on the outer side of the monitoring camera 1.

In the monitoring camera apparatus a, the known monitoring camera may be suitably employed as the monitoring camera 1.

Further, a lens cover 1a for protecting the lens is mounted on the lens of the monitoring camera 1. The lens cap may have a zoom function, an anti-shake function, a schem's law function, and the like.

The monitoring camera 1 includes a communication unit, not shown, by which a captured image can be transmitted to an external computer. Accordingly, the condition of the structural member of the paper machine in the paper making process can be monitored by an external computer.

In the monitoring camera apparatus a, a monitoring camera 1 and an inner case 4 described later are incorporated in a case 3. That is, the housing portion 3 functions to protect the monitoring camera 1 from heat or contaminants.

The housing portion 3 has: a cylindrical body portion 31, a front cover portion 6 attached to the front end of the body portion 31, and a rear cover portion 7 attached to the rear end of the body portion 31 with a gasket interposed therebetween.

The body portion 31 is cylindrical and has an inner diameter sized to accommodate an inner housing portion 4 described later.

Here, the main body 31 is preferably made of a material having a thermal conductivity of 1.0 or less, preferably 0.3 or less. In this case, heat conduction from the outside into the case 3 can be suppressed.

The material constituting the body 31 is not particularly limited, and examples thereof include nickel, iron, stainless steel, and the like.

Among them, stainless steel is preferably used as the material.

The heat insulating material 32 is embedded in the body portion 31 along the circumferential direction thereof. This can suppress the body 31 itself from being heated. Further, it is also possible to better prevent heat from the outside from conducting to the inside case portion 4 and the monitoring camera 1 built therein.

The heat insulating material 32 is not particularly limited, and examples thereof include glass wool, polystyrene foam, polyurethane foam, and aerogel.

The front cover portion 6 has a disk shape conforming to the shape of the front end of the main body portion 31, and an opening 61 is provided substantially at the center thereof. That is, the front cover part 6 is formed in a doughnut shape.

The opening 61 is located at a position corresponding to the lens of the monitoring camera 1. Therefore, the monitoring camera 1 built in the housing portion 3 takes an image of the outside through the opening portion 61, and the cooling air introduced into the housing portion 3 from the cooling air duct 8 is discharged to the outside through the opening portion 61.

A transparent member such as glass or a film may be attached to the opening 61 as long as the transparent member does not obstruct the imaging and has a vent hole through which cooling air can be discharged.

The aperture of the opening 61 is preferably 5 to 50 mm. In this case, the flow velocity of the air flowing out of the opening 61 is high, and the entry of contaminants into the housing portion 3 can be prevented more effectively.

The front cover portion 6 may be made of the same material as that of the main body portion 31.

The material of the front cover 6 may be the same as or different from that of the main body 31.

The rear lid portion 7 has a disk shape conforming to the shape of the rear end of the main body portion 31, and has a rod-shaped support portion 71 extending and protruding forward.

The support portion 71 supports an inner rear cover portion 4c of the inner case portion 4, which will be described later.

Further, the rear cover 7 is provided with a through hole H.

The through hole H is inserted with an attachment portion C1 of a vortex cooler C described later. Accordingly, the vortex cooler C is attached to the rear surface of the rear cover portion 7.

The cooling air pipe 8 and the blowing air pipe 51 are attached to the vortex cooler C. That is, the cooling air pipe 8 and the blowing air pipe 51 are attached to the rear cover portion 7 via the vortex cooler C.

The material for the rear cover 7 may be the same as that for the main body 31.

The material of the rear cover 7 may be the same as or different from that of the main body 31 or the front cover 6.

In the monitoring camera apparatus a, the inside housing portion 4 is built in the housing portion 3, and the monitoring camera 1 is built in. That is, the inside housing portion 4 functions to protect the monitoring camera 1 from heat or contaminants passing through the housing portion 3.

The inner shell 4 has: an inner body portion 4a, an inner front lid portion 4b attached to the front end of the inner body portion 4a, and an inner rear lid portion 4c attached to the rear end of the inner body portion 4 a.

The inner body portion 4a is cylindrical and can house the monitoring camera 1 therein.

Here, the inner body portion 4a is preferably made of a material having a thermal conductivity of 0.3 or more, preferably 1.0 or more. In this case, the cooling by the cooling air introduced from the cooling air pipe 8 described later into the gap portion 2 is easily conducted into the inner body portion 4a (inner case portion 4), and the inside of the inner body portion 4a can be efficiently cooled.

The material is not particularly limited, and examples thereof include silver, copper, gold, and aluminum. Among them, aluminum is preferably used as the material.

The inner front lid portion 4b has a disk shape conforming to the shape of the front end of the inner main body portion 4a, and an inner opening portion 41b is provided at substantially the center thereof. That is, the inner front cover part 4b has a doughnut shape.

Although the inner front cover portion 4b is smaller than the front cover portion 6, the size of the inner opening portion 41b is substantially the same as the opening portion 61.

The inner opening 41b is located at a position corresponding to the lens of the monitoring camera 1 and the opening 61 of the front cover 6. Therefore, the monitoring camera 1 built in the inner case 4 can take an image of the outside through the inner opening 41b and the opening 61.

The inner opening 41b may be a hollow or may be provided with a transparent member such as glass or film, as long as the imaging is not obstructed.

Here, the lens cover 1a of the monitoring camera 1 is inserted into the inner opening portion 41b, whereby the inner bezel portion 4b supports the lens cover 1 a. Accordingly, even when the weight of the lens cover 1a of the monitoring camera 1 is large, the monitoring camera 1 can be reliably fixed.

The inner front cover portion 4b may be made of the same material as that of the inner body portion 4 a.

The material of the inner front cover portion 4b may be the same as or different from that of the inner main body portion 4 a.

The inner rear lid portion 4c has a disk shape conforming to the shape of the rear end of the inner main body portion 4a, and has a base portion 41 extending and protruding forward.

The monitor camera 1 is placed on the stage portion 41.

Therefore, the monitoring camera 1 is mounted on the inner case portion 4 by placing the monitoring camera 1 on the table portion 41 and supporting the lens cover 1a mounted on the monitoring camera 1 by the inner front cover portion 4 b.

At this time, the monitoring camera 1 is placed on the table portion 41 so as not to contact the inner main body portion 4a (inner wall of the inner case portion 4). That is, the monitoring camera 1 is in contact with only the table portion 41, and a space exists between the monitoring camera 1 and the inner main body portion 4 a.

Accordingly, the contact area between the surveillance camera 1 and the inner case 4 can be reduced as much as possible, and even if heat is conducted to the inner body 4a, the heat can be prevented from being conducted to the surveillance camera 1.

The inner rear lid section 4c may be made of the same material as that of the inner body section 4 a.

The material of the inner rear lid portion 4c may be the same as or different from that of the inner main body portion 4a or the inner front lid portion 4 b.

In the inner rear cover portion 4c, only the base portion 41 may be made of another material.

The mesa 41 is preferably made of a material having a thermal conductivity of 0.3 or more, preferably 1.0 or more, as in the inner body portion 4 a. In this case, the cooling air introduced from the cooling air duct 8 described later into the gap portion 2 can be conducted from the inner rear cover portion 4c to the monitor camera 1 via the base portion 41 to cool the monitor camera 1.

A support portion 71 of the rear cover portion 7 is attached to the rear side of the inner rear cover portion 4c, and the inner rear cover portion 4c is supported by the support portion 71. That is, the housing portion 3 supports the inner housing portion 4 via the support portion 71.

At this time, gap portions 2 as spaces are formed between the outer wall of the inner body portion 4a and the inner wall of the body portion 31, between the inner front cover portion 4b and the front cover portion 6, and between the inner rear cover portion 4c and the rear cover portion 7.

Since the above gap portion 2 is an air layer having a low thermal conductivity, even if heat is conducted to the case portion 3, the heat can be more efficiently prevented from being conducted to the inside case portion 4 and the monitoring camera 1 built therein.

In the monitoring camera device a, one end of the cooling air pipe 8 is connected to an air supply source, not shown, and the other end is attached to the rear cover 7 via the vortex cooler C.

The cooling air pipe 8 communicates with the gap 2 in the casing 3 through the inside of the vortex cooler C. Therefore, when the cooling air supplied from the air supply source is introduced into the case 3 from the cooling air pipe 8, the cooling air flows through the gap 2 in one direction and is discharged from the opening 61 of the front cover 6.

As described above, in the monitoring camera apparatus a, since fresh air for cooling is caused to flow through the inside of the case section 3, the inside of the case section 3 can be efficiently cooled, and by the discharged air, the adhesion of contaminants to the front of the monitoring camera 1 and the entry of contaminants into the case section 3 from the opening 61 can be suppressed.

In the monitoring camera apparatus a, the eddy current cooler C has a mounting portion C1, and is mounted to the rear cover portion 7 by inserting the mounting portion C1 into a through hole H provided in the rear cover portion 7.

The cooling air pipe 8 and the blowing air pipe 51 are attached to the vortex cooler C.

The vortex cooler C functions to separate the air flowing in into the cooled air and the air from which the cooled air rejects heat. Therefore, the vortex cooler C is provided with an inlet for introducing air, a cooling-side outlet for discharging cooled air, and a heat-removal-side outlet for removing air that has received heat removal.

The cooling-side outlet is formed in the mounting portion C1 of the vortex cooler C.

Therefore, the cooling-side outlet is disposed in the housing portion 3 by fitting the mounting portion C1 into the through hole H.

In the monitoring camera device a, cooling air supplied from the air supply source to the cooling air duct 8 flows into the vortex cooler C through the inlet port, is cooled, is discharged from the cooling side outlet port, and is introduced into the housing portion 3.

The air having received the exhaust heat is discharged from the exhaust heat side outlet and supplied to the air blowing unit 5.

As described above, in the monitoring camera apparatus a, the air supply source can be shared by the cooling air pipe 8 and the blowing air pipe 51 by using the vortex cooler C, and the cooling of the housing portion 3 and the blowing of the air by the air blowing portion 5 can be performed with high energy efficiency.

Further, the structure for attaching the cooling air pipe 8 and the blowing air pipe 51 to the rear cover 7 can be simplified.

In the monitoring camera device a, the air blowing unit 5 is composed of a blowing air duct 51 and a nozzle portion 52 attached to the tip end of the blowing air duct 51.

The rear end of the blowing air pipe 51 is attached to the side of the vortex cooler C from which the air having received the exhaust heat is discharged.

Therefore, the air blowing duct 51 is attached to the rear cover portion 7 via the vortex cooler C.

Fig. 4 is a front view showing a monitoring camera apparatus a of the present embodiment.

As shown in fig. 4, the blowing air pipe 51 has a structure in which: and extends forward from the rear cover portion 7 around the upper side of the housing portion 3.

Accordingly, the nozzle portion 52 at the tip end can blow air at least forward of the monitoring camera 1.

The nozzle portion 52 has a fan shape with a tip end expanded in a plan view, and can blow air for blowing over a wide range from a nozzle opening 52a provided at the tip end.

Further, the nozzle opening 52a is provided with ribs, and the air for blowing blown from the nozzle opening 52a can be guided forward without being dissipated in the lateral direction.

The air blowing section 5 blows the blowing air supplied from the blowing air duct 51 from the nozzle section 52 toward the front of the monitoring camera 1. When the air for blowing is blown to the front of the monitoring camera 1, a part of the air for blowing may be directly blown to the monitoring camera 1. Accordingly, the contamination can be prevented from adhering to the monitoring camera 1.

The monitoring camera apparatus a of the present embodiment is fixed by a belt-like frame 91 attached so as to traverse substantially the center of the main body portion 31 of the housing portion 3. Accordingly, even if mechanical vibration is transmitted to the monitoring camera device a in the paper making process, the monitoring camera device a can be prevented from dropping or the like.

A box-shaped seat 92 is provided below the housing 3 of the monitoring camera apparatus a. Accordingly, when the contaminants adhere to the outer wall of the monitoring camera apparatus a, even if the contaminants are accumulated and fall, they can be caught. As a result, contamination of the wet paper or the like due to the contamination falling from the monitoring camera device a can be prevented.

The monitoring camera apparatus a of the present embodiment can be used for a monitoring camera system of a paper machine.

That is, the monitoring camera system has: the paper machine, a monitoring camera device A for monitoring the structural member of the paper machine, and a control device connected with the monitoring camera device A through the internet.

According to the monitoring camera system, the occurrence of defects on the sheet can be prevented by monitoring the structural member.

Fig. 5 is a schematic diagram for explaining the components of a paper machine in which the monitoring camera system a of the present embodiment is mounted.

As shown in fig. 5, the paper machine includes: a papermaking wire section (not shown) for forming a wet paper web X by carrying a liquid, which is generally formed by dispersing pulp in water, on a wire (papermaking wire) (not shown) for papermaking and naturally dropping excess water; a press part P for transferring water in the wet paper X to a felt 11a by pressing the wet paper X with a press roll 11 through a pair of press rolls 11 with the felt 11a interposed therebetween, thereby dewatering the wet paper X; a drying section D for forming a sheet by bringing the wet paper X having passed through the press section P into contact with the heated drying roll 12 via the canvas 12a in the dryer cover DH and drying the wet paper; a calender unit (not shown) for adjusting the thickness and smoothness of the paper by a semi-dry calender roll and performing calender processing on the paper by the calender roll; and a winding section (not shown) that winds the paper around a bar called a "reel".

The dryer cover DH is a hollow housing, and houses the drying roller 12, the canvas 12a, and the canvas roller 12b for guiding the canvas 12a therein.

The monitoring camera device a monitors the inside of the dryer cover DH.

For example, the surface of the drying roller 12, the surface of the canvas 12a, and the surface of the canvas roller 12b are monitored. Since these structures come into direct or indirect contact with the wet paper, when contaminants adhere, the contaminants are transferred to the wet paper, thereby causing contamination of the wet paper.

The inside of the top of the dryer cover DH, the surface of the applicator 13, and the surface of a canvas cleaning device (not shown) are also monitored. If contaminants adhere to these structures, wet paper contamination may also result because the contaminants may fall onto the wet paper, the structures with which the wet paper directly or indirectly contacts.

Therefore, according to the monitoring camera device a, it is possible to detect the adhesion of contaminants at an early stage, prevent the wet paper contamination and the paper breakage, and take measures as early as possible even if the above phenomenon occurs.

It is needless to say that the surface of the wet paper itself can be monitored in the dryer cover DH.

In the monitoring camera system, an application device 13 for applying a chemical to a structure is mounted on the paper machine.

Examples of the chemical solution include a contamination inhibitor for preventing contaminants from adhering to the structural member.

The control device is provided with: a CPU (Central processing unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an external Memory, an input unit, and an output unit have the same configuration as a general computer.

In the monitoring camera system, a monitoring camera device a receives a captured image through a network, and detects the state of a paper machine and the occurrence of contaminants based on the received image. The detection can be performed either by manual visual observation through an image or by a program.

Moreover, when the pollution occurs or the sign is found, the operation of the paper machine is subjected to feedback control according to the type and the quantity of the pollution.

The feedback control may be performed manually or may be automatically controlled by a program.

Specifically, the control device performs control such as increasing or decreasing the amount of the contamination inhibitor applied by the applying device 13 located on the structure to be monitored or on the upstream side thereof, changing the type of the contamination inhibitor, and applying a new drug.

According to the monitoring camera system, the inside of the dryer cover DH of the paper machine which is processed in a high-temperature environment can be stably monitored by using the monitoring camera device a, and the occurrence of wet paper contamination or paper breakage can be monitored.

Further, the type, amount, and size of the contaminants can be monitored by the monitoring camera device a, and accordingly, the control device can adjust the type and amount of the contamination preventive agent applied by the application device 13. As a result, the quality can be maintained without stopping the operation of the paper machine.

Even if contaminants occur to the extent that maintenance is required to stop the operation of the paper machine, the occurrence of the above-described situation can be detected early, and countermeasures can be taken early.

The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments.

In the monitoring camera apparatus a of the present embodiment, 1 monitoring camera 1 is provided in the housing section 3, but a plurality of monitoring cameras 1 may be provided in the housing section 3 to ensure that imaging in a plurality of directions is possible. In this case, the positions and the number of the openings 61 and the air blowing units 5 can be adjusted according to the shooting direction of each monitoring camera 1.

In the monitoring camera apparatus a of the present embodiment, the shape of the housing portion 3 is a cylindrical shape, but is not limited thereto, and may be a hollow prismatic shape, for example.

In the monitoring camera apparatus a of the present embodiment, the monitoring camera 1 is placed on the table portion 41, but the present invention is not limited thereto, and for example, the monitoring camera may be supported by providing a support portion inside the inner case portion 4.

In the monitoring camera device a of the present embodiment, the cooling air pipe 8 and the blowing air pipe 51 are attached to the rear cover 7, but the present invention is not limited thereto, and may be attached to, for example, the upper side of the housing 3.

In the monitoring camera apparatus a of the present embodiment, the heat insulating material 32 is embedded in the main body portion 31 of the outer case portion 3, but this is not essential.

The heat insulating material may be embedded only in the inner body 4a of the inner case 4, or may be embedded in both the body 31 and the inner body 4 a.

In the monitoring camera device a of the present embodiment, the cooling air pipe 8 and the blowing air pipe 51 are attached to the rear cover portion 7 via the vortex cooler C, but the present invention is not limited thereto.

For example, the cooling air pipe 8 and the blowing air pipe 51 may be independently attached to the rear cover 7.

Fig. 6 is a perspective view showing a monitoring camera apparatus a of another embodiment.

As shown in fig. 6, the cooling air pipe 8 is attached to the rear cover 7, and the blowing air pipe 51 is attached to the rear cover 7 via an arm portion extending rearward from the rear cover 7.

At this time, the cooling air pipe 8 and the blowing air pipe 51 are connected to separate air supply sources, respectively.

By using separate air supply sources for the cooling air pipe 8 and the blowing air pipe 51, the temperature and pressure of the air supplied to each of them can be easily adjusted.

The monitoring camera apparatus a of the present embodiment has been described as a specific example of an apparatus using a paper machine as an example, but may be used for monitoring apparatuses in other industrial fields than paper machines.

The monitoring camera apparatus a according to the present embodiment monitors the inside of the dryer cover DH of the paper machine, but may be used for monitoring a paper web (not shown), a felt 11a, a semi-dry calender roll (not shown), a calender roll (not shown), and the like.

[ industrial applicability ]

The monitoring camera device a of the present invention is preferably used for photographing intended to monitor a structure in a paper machine.

According to the monitoring camera device a of the present invention, the monitoring camera 1 can be protected from heat and contaminants, and stable shooting can be performed in a high-temperature environment.

Description of the reference numerals

1: monitoring camera

1 a: lens cap

2: gap part

3: outer shell part

31: main body part

32: heat insulating material

4: inner side shell part

41: desk part

4 a: inner body portion

4 b: inner front cover part

41 b: inner opening part

4 c: inner rear cover part

5: air blowing part

51: blowing air pipe

52: nozzle part

6: front cover part

61: opening part

7: rear cover part

71: support part

8: air pipe for cooling

91: frame structure

92: seat part

11: press roll

11 a: felt blanket

12: drying roller

12 a: canvas

12 b: canvas roller

13: application device

A: monitoring camera device

C: vortex cooler

C1: mounting part

H: through hole

D: drying section

DH: drier cover

P: press section

X: and (3) wet paper.