JPH0919617A - Method for sticking resin separator to filter medium and filter with resin separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for sticking resin separators to a filter medium by which the loss of the filter medium due to the reduction of the commodity value is not caused because the appearance is not deteriorated and to obtain a filter with the resin separators. SOLUTION: A filter medium 11 is marked as a marking 12 in correspondence with positions at which resin separators 13 are stuck, the markings 12 are detected with a sensor and the resin separators 13 are stuck at intervals. In this sticking method, the marking 12 is carried out with a fluorescent agent.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for attaching a resin separator to a filter medium, and a filter with a resin separator. More specifically, the present invention relates to a method for attaching a resin separator to a filter material that does not impair the appearance and does not cause a loss of the filter material due to a decrease in commercial value, and a filter with a resin separator.

[0002]

2. Description of the Related Art Generally, separators that maintain the intervals between folds are linearly and intermittently attached to the surface of a filter medium that constitutes a folded filter. Most of these separators are made of resin such as hot-melt resin, and these are attached to the portions of the filter medium that are to be the folds and then folded to manufacture the filter.

In this filter with a resin separator, when the resin separator cannot be accurately attached to a portion of the filter medium that should be a fold, and the position is displaced, when the filter is then folded. In addition, the distance between the folds could not be reliably maintained, and the folds of the folds would stick together,
As a result, there is a risk that the dust collection efficiency will decrease.

[0004] Therefore, conventionally, in order to accurately attach the resin separator to the portion where the filter material should be folded, marking is performed with the magic ink corresponding to the position where the resin separator is attached, and this marking is detected by the sensor. The method of intermittently adhering the resin separator linearly has been adopted.

However, according to this attachment method, since marking marks remain on the obtained filter, the appearance is poor and the commercial value is lowered. Further, in the conventional marking with the magic ink, the marking may be mistaken for the dirt on the filter.

For this reason, an adhering method has been adopted in which the marking position is set to the edge of the filter medium as much as possible, the resin separator is adhered, and then the marked portion is removed.

However, in this attaching method, the amount of the marked edge portion is removed, resulting in a loss and a decrease in the yield of the filter medium.

The present invention has been made in view of the above circumstances, and a method for attaching a resin separator to a filter medium that does not impair the appearance and does not cause a loss of the filter medium due to a decrease in commercial value, and a resin. An object of the present invention is to provide a filter with a separator.

[0009]

In order to achieve the above-mentioned object, the invention according to claim 1 makes a marking corresponding to the attachment position of the resin separator of the filter medium, and this marking is detected by a sensor to make the resin. In the method of intermittently attaching the separator, the marking is performed with a fluorescent agent, and a method of attaching the resin separator to the filter medium is the gist thereof.

A second aspect of the present invention is a method of attaching a resin separator to a filter medium, characterized in that the filter medium marked with a fluorescent agent is irradiated with black light and the light emission is detected by an optical sensor. And

According to the third aspect of the present invention, a marking is made by a fluorescent agent corresponding to the position of attachment of the resin separator of the filter medium, and the resin separator is intermittently adhered according to the marking, and the resin separator is folded. The gist thereof is a filter with a separator made of resin, which is characterized in that it is folded so as to be located in a mountain portion.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

(Operation) In the method of attaching the resin separator to the filter medium according to claim 1, the sensor detects light emitted from the marking made of the fluorescent agent corresponding to the attachment position of the resin separator of the filter medium. The position of the marking can be grasped as a position where the resin separator is attached or a position where the resin separator is not attached, and according to this, the resin separator is attached or the attachment is stopped.

In the method of attaching the resin separator to the filter medium according to the second aspect, by irradiating the filter medium marked with the fluorescent agent with black light, the amount of light emitted from the marking by the fluorescent agent is increased. An optical sensor captures and detects the increased light emission.

In the filter with the resin separator according to the third aspect, the marking is made with the fluorescent agent in correspondence with the attachment position of the resin separator of the filter medium. Many of the filter materials that make up the filter are white or light-colored (in order to make it easier to understand the service life of the filter), whereas the fluorescent agent is colorless or light-colored.
By marking with this fluorescent agent, the portion becomes white or light color and emits fluorescence.

This filter is marked by the above-mentioned fluorescent agent in correspondence with the attachment position of the resin separator of the filter medium, which is the attachment position of the resin separator,
Alternatively, it indicates a position where no adhesion occurs. Then, in this filter, the resin separator is adhered in accordance with the marking made of the fluorescent agent, or the adhesion is stopped, and the resin separator is intermittently adhered accurately to the place where the fold of the filter medium is to be formed, The distance between the folds is ensured.

A method for attaching a resin separator to a filter medium and a filter with a resin separator according to the present invention will be described below in detail with reference to an embodiment shown in the drawings. First, Figure 1
Taking the filter with a resin separator shown in FIG. 3 as an example,
A method of attaching the resin separator to the filter medium according to claims 1 and 2 will be described.

As shown in FIGS. 1 to 3, prior to the resin separator 13 being attached to the filter medium 11, the marking 12 is made by a fluorescent agent corresponding to the position where the resin separator 13 of the filter medium 11 is attached. Are doing The filter medium 11 is not particularly limited, and may be a conventionally used one such as non-woven fabric, paper, woven fabric, knitted fabric, net, or a composite thereof. When the filter medium 11 is folded, the resin separator 13 is attached to a portion forming the fold crest 11a so that the fold crests 11a can be reliably held at a certain distance from each other, as shown in FIG. Has become. The marking 12 made of a fluorescent agent is for displaying the adhesion information so that the resin separator 13 can be accurately attached to the portion of the filter medium 11 that constitutes the fold crest 11a.

The marking 12 shown in FIGS. 1 and 2 corresponds to the position where the resin separator 13 is attached, and the marking medium 1
It is formed by linearly intermittently at the same interval as the resin spacer 13 is attached to the edge portion of No. 1. The marking shown in FIG. 4 is linearly intermittently formed at the same interval as the resin separator 13 does not adhere to the edge of the filter medium 11 at a position where the resin separator 13 does not adhere.

Other marking modes include, for example, a position where the resin separator is attached, a position where the resin separator is attached and a position where the resin separator is attached, and a position where the resin separator is attached. It is regarded as the adhesion start position, and the adhesion is stopped after a certain period of time has passed or after a certain distance has passed, and the position where the resin separator is adhered is regarded as the adhesion stop position. Examples thereof include those in which the adhesion is started after a lapse of a certain time or after passing a certain distance.

In the adhesion method shown in FIGS. 5 and 6, the marking 12 made of the fluorescent agent is provided only at the adhesion start position corresponding to the position where the resin separator 13 is adhered, and the adhesion is stopped after a certain distance has passed. In the example I tried to do,
When the sensor 14 detects the marking 12 provided on the mountain fold line, the hot melt resin coating device 15 provided in front
From this point, the attachment of the hot-melt resin separator 13 is started, and the attachment is finished when the length reaches a predetermined length. As shown in FIG. 5, the attachment of the resin separator 13 is set so as to start from a position before the mountain fold line and end at a position beyond the mountain fold line, and each time the sensor 14 senses the marking 12. The adhesion is repeated, and the resin separator adheres in a broken line shape. FIG.
In the above example, the hot melt resin separator is supplied from two hot melt resin coating devices arranged in parallel by a signal from one marking. Further, in this example, a sensor in which a black light and an optical sensor are incorporated is used, and fluorescence is generated in the marking by the black light, which is read by the optical sensor and used as the adhesion start signal of the hot melt resin separator. .

The marking may be linear as shown in FIGS. 1 and 2 or 4, or dotted as shown in FIGS. 5 to 7, or a plurality of circles as shown in FIG. The shape such as a mark is arbitrary, and as shown in FIG. 1, FIG. 2, FIG. 4, FIG. 5 and FIG. 7, one marking corresponds to the attachment position of one or more resin separators. Alternatively, as shown in FIG. 8, one or a plurality of markings can be performed corresponding to the attachment position of one resin separator.

Furthermore, as shown in FIG. 9, the filter material or product can be identified by changing the marking shape or arrangement according to the filter material or product, such as changing the thickness or number of marking lines for each filter material or product. You can also allow it.

As the fluorescent agent used for this marking, other than stilbene dyes such as the blankophores, benzimidazole-based, benzidine-based, benzoxazole-based and distyrylbiphenyl-based ones are often used as they are or as an aqueous dispersion. Alternatively, the marking is made by applying it to the surface of the filter medium by including it in a synthetic resin. Most of the filter materials that make up the filter are white or light-colored so that the service life of the filter can be easily grasped, whereas the fluorescent agent is colorless or light-colored, and the fluorescent agent is marked. By that, the part shows white or light color,
Moreover, it comes to emit fluorescence.

Next, this marking is detected by a sensor and a resin separator is attached. As described above, the marking made of the fluorescent agent is made in correspondence with the attachment position of the resin separator, and by detecting this marking, the position where the resin separator is attached or the position where the resin separator is not attached can be grasped.

As shown in FIG. 10, the marking 12 of the filter medium 11 is detected by a sensor. Since the marking 12 is made of a fluorescent agent, the sensor captures a slight light emission from the fluorescent agent with high sensitivity. What is possible is, for example, an optical sensor 14, and if the marking 12 on the filter medium 11 is illuminated with a black light 16 to increase the amount of light reflected from the fluorescent agent, more accurate and reliable detection is possible. Become.

Marking 1 made of a fluorescent agent on the filter medium 11
When the black light 15 is irradiated on the second light and the reflected light is detected by the optical sensor 14, the distance between the marking 12 and the black light 16 is preferably 100 mm or less. This is because when the distance is farther than this, a sufficient effect of increasing the amount of reflected light from the fluorescent agent cannot be obtained. Further, the optical sensor 14 is preferably around 90 ° with respect to the filter medium marked with the fluorescent agent. The light sensor 14 and the black light 16 are preferably incorporated into the same device and can be operated at substantially the same angle with respect to the filter media.

In this way, the sensor 14 detects the marking 12 made of the fluorescent agent, and the position where the resin separator is attached or the position where the resin separator is not attached is grasped, and the resin separator 13 is attached based on this. For example, in the filter 10 shown in FIG. 2, the resin separator 1 is attached to the edge portion of the filter medium 11 corresponding to the attachment position of the resin separator 13.
Marking linearly and intermittently at the same interval as the adhesion interval of 3 12
Has been made. In this case, when the marking 12 is detected by the sensor 14 as shown in FIG. 10, the position is grasped as the attachment position of the resin separator 13, and the resin separator 13 is attached here. On the other hand, a portion where the marking 12 is not formed is recognized as a position where the resin separator 13 is not attached, and here, the attachment of the resin separator 13 is temporarily stopped. Corresponding to the position where the resin separator 13 is attached, the resin separator 13 is repeatedly attached and stopped according to the intermittent markings 12 so that the resin separator 13 is intermittently attached on the filter medium 11. Has become.

The resin separator is for maintaining the distance between the folds of the folded filter medium, and the kind of the resin is not particularly limited, but hot-melt resin,
Or, the foamed hot-melt resin, which is made by mixing gas into hot-melt resin to expand it 2 to 4 times, has good workability and is highly adhesive, and it can be easily separated by pressing and can be easily separated. It is preferable in that the interval can be reliably maintained. The manner of adhering the resin separator is not particularly limited, but it is preferable that the resin separator is adhered linearly and intermittently in a direction orthogonal to the mountain fold line shown by the dotted lines in FIGS.

The size and amount of the resin separator may be arbitrary. However, as shown in FIG. 3, the distance between the folds 11a is such that the separators 13 of the folds 11a adjacent to each other are held in contact with each other. If is increased, the distance between the folds 11a increases, and on the contrary, the size,
If the adhesion amount is reduced, the distance between the folds 11a becomes narrower. Therefore, the size of the resin separator and the adhesion amount are
It is desirable to appropriately determine in consideration of the shape, size, number of folds and height of the filter.

Next, the resin separator-equipped filter of the present invention will be described. The filter material and the resin separator have already been explained in the section of the above-mentioned attaching method,
I will omit the explanation here.

In this filter with a resin separator, a marking is made with a fluorescent agent corresponding to the position where the resin separator of the filter material is attached. The marking with the fluorescent agent is for displaying the adhesion information so that the resin separator is accurately attached to the portion forming the fold crest of the filter medium.

For example, the marking 12 shown in FIGS. 1 and 2.
Corresponds to the position where the resin separator 13 is attached,
The filter material 11 is linearly intermittently formed at the same interval as the resin separator 13 is attached to the edge of the filter material 11. The marking shown in FIG. 4 is linearly intermittently formed at the same interval as the resin separator 13 does not adhere to the edge of the filter medium 11 at a position where the resin separator 13 does not adhere.

Other marking modes include, for example, a position where the resin separator is attached, a position where the resin separator is attached and a position where the resin separator is attached, and a position where the resin separator is attached. It is regarded as the adhesion start position, and the adhesion is stopped after a certain period of time has passed or after a certain distance has passed, and the position where the resin separator is adhered is regarded as the adhesion stop position. Examples thereof include those in which the adhesion is started after a lapse of a certain time or after passing a certain distance.

The marking may be linear as shown in FIG. 1 and FIG. 2 or FIG. 4, dot-shaped as shown in FIGS. 5 to 7, or a plurality of circles as shown in FIG. The shape such as a mark is arbitrary, and as shown in FIG. 1, FIG. 2, FIG. 4, FIG. 5 and FIG. 7, one marking corresponds to the attachment position of one or more resin separators. Alternatively, as shown in FIG. 8, one or a plurality of markings can be performed corresponding to the attachment position of one resin separator.

Further, as shown in FIG. 9, the filter material or product can be identified by changing the marking shape or arrangement according to the filter material or product, such as changing the thickness or number of marking lines for each filter material or product. You can also allow it.

As the fluorescent agent used for this marking, stilbene dyes such as the blankophores, benzimidazole-based, benzidine-based, benzoxazole-based and distyrylbiphenyl-based fluorescent agents are often used as they are or as an aqueous dispersion. Alternatively, the marking is made by applying it to the surface of the filter medium by including it in a synthetic resin. These fluorescent agents are colorless or light-colored, and when this is marked on a filter material that is white or light-colored, in order to easily understand the service life of the filter, the part shows white or light-colored. , And emits fluorescence.

According to this marking, a resin separator is attached. As described above, the marking with the fluorescent agent is made corresponding to the position where the resin separator is attached, and the light emission from the marking with the fluorescent agent indicates the position where the resin separator is attached or the position where the resin separator is not attached. . According to the marking, the resin separator is attached, and the position where the resin separator is attached or the position where the resin separator is not attached is grasped by catching the light emission from the marking, and accordingly the resin separator is attached or the attachment is stopped. That is, the resin separator is intermittently attached.

The filter medium with the resin separator intermittently attached thereto is folded so that the resin separator 13 is located at the fold 11a of the filter medium 11 as shown in FIG. As a result, the resin separators 13 of the adjacent fold ridges 11a come into contact with each other, and the distance between the fold ridges 11a is maintained at a predetermined distance.

[0039]

According to the method of adhering the resin separator to the filter medium according to the first aspect of the invention, by grasping the fluorescence from the marking made of the fluorescent agent, the adhering position or the non-adhering position of the resin separator can be grasped. According to this, the resin separator is attached or the attachment is stopped. Therefore, unlike the conventional marking made of magic ink, the marking marks do not impair the appearance, reduce the commercial value, and do not mistake the marking for a filter stain.

Since the marking does not impair the appearance, it is not necessary to remove the part.

In the method of attaching the resin separator to the filter medium according to the second aspect, by irradiating the filter medium marked with the fluorescent agent with black light, the amount of light emitted from the marking by the fluorescent agent is increased. Since the optical sensor captures and detects the increased light emission, it is possible to capture the marking more accurately and reliably,
The resin separator can be more accurately attached to the place where the filter material should be folded.

In the filter with the resin separator according to the third aspect of the present invention, a marking is made with a fluorescent agent corresponding to the position where the resin separator of the filter material is attached, and the resin separator is attached according to the marking. For this reason, like a filter with a resin separator attached according to the conventional marking with a magic ink, the marking marks may impair the appearance, reduce the commercial value, or mistake the marking as a filter stain. Absent. Further, since the marking does not spoil the appearance, it is not necessary to remove the part.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a filter with a resin separator according to the present invention.

FIG. 2 is a plan view of a filter with a resin separator according to the present invention before folding.

FIG. 3 shows the filter with a resin separator shown in FIG.
The expanded sectional view which shows the state cut | disconnected by the B line.

FIG. 4 is a plan view before folding, showing another mode of marking in the filter with a resin separator according to the present invention.

FIG. 5 is a plan view of a filter before folding processing showing still another mode of marking.

FIG. 6 is an explanatory diagram showing an example of a step of attaching a resin separator.

FIG. 7 is a plan view of a filter before folding showing another mode of marking.

FIG. 8 is a plan view of a filter before folding showing another mode of marking.

FIG. 9 is a plan view of a filter before folding showing another mode of marking.

FIG. 10 is a schematic diagram showing a state in which marking with a fluorescent agent is detected by a sensor.

[Explanation of symbols]

 11 ... Filter material 12 ... Marking 13 ... Resin separator 14 ... Sensor

Claims (3)

[Claims] 1. In a method of marking a resin separator of a filter medium at a position corresponding to the adhered position, detecting the marking with a sensor, and intermittently adhering the resin separator, the marking is performed with a fluorescent agent. A method for attaching a resin separator to a filter medium as defined below. 2. The method for adhering a resin separator to a filter medium according to claim 1, wherein the filter medium marked with a fluorescent agent is irradiated with black light and the light emission is detected by an optical sensor. 3. A marking is made by a fluorescent agent corresponding to the position of attachment of the resin separator of the filter medium, and the resin separator is intermittently adhered according to this marking so that the resin separator is located at the fold crest portion. A filter with a separator made of resin that is folded.