JPH03219942A - Method for mounting filter to filter frame - Google Patents

Abstract

PURPOSE:To easily mount a filter to a filter frame without generating strain by applying ultrasonic vibration to the outer surface of the filter frame under pressure to almost simultaneously perform the temporary bonding of a filter base to the filter frame and the separation of this part from the other part of the filter base and subsequently performing final bonding. CONSTITUTION:Both ultrasonic processing devices 4 fall to press a filter frame 2 and a filter base 3 from above under pressure P and ultrasonic vibration is applied to both of them in this state. The leading ends of both cutting blades 8 become the state slightly penetrating in the filter frame 2 and the filter base 3 is cut at the positions of two cutting lines L and the filter base 3 between two cutting lines L is temporarily bonded to the ridges 9 of the filter frame 2. The temporarily bonded filter frame 2 and filter base 3 are fed to a final bonding position and the filter material is finally bonded to the filter frame by the ultrasonic processing devices. Thereafter, the aforementioned operation is repeated to successively mount the filter base to the filter frame 2.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method of attaching a filter to a filter frame, which is used for example in an air conditioner, and particularly a method of attaching a filter to a filter frame using ultrasonic waves or vibrations. Regarding the installation method.

[Prior Art] Generally, a removable filter device used in an air conditioner or the like is constructed by attaching a mesh filter to a flat filter frame.

Conventionally, the method for manufacturing this type of filter device is as follows:
A band-shaped filter material is cut to a certain length to form a filter, and this filter is placed in a mold for a filter frame formed by plastic molding, and when the filter frame is molded, the filter is A so-called mold filter forming method is used, in which the filter is attached at the same time.

However, with this molding method, there is no means for stably fixing the filter in a fixed position within the mold, so the filter tends to warp or wrinkle when filling with resin, and the filled resin also tends to cause damage to the filter. There is a problem in that it tends to protrude and cause paris. Furthermore, there is also the problem that the filter tends to float up on the surface of the resin frame, resulting in a significant loss of appearance.

Further, the part where the filter is set is usually the upper press-cut surface of the mold, but since the filter is inserted, a slight gap is created. If this gap is too wide, cracks are likely to occur, and if it is too narrow, the filter will break at the filter frame, creating a bottleneck in molding.

Furthermore, the mold-in filter forming method has a long molding cycle, resulting in poor efficiency and high costs.

Therefore, in some cases, a band-shaped filter material is cut to a certain length to form a filter, and this filter is superimposed on a pre-formed filter frame, and the filter is attached to the filter frame by ultrasonic vibration etc. A method is used in which the parts are temporarily attached to the paper and then sent to the process for final attachment.

[Problems to be Solved by the Invention] By the way, in the conventional mounting method using ultrasonic vibration, the filter is cut to a fixed size in advance and temporarily attached by superimposing it on the filter frame. There is a problem that attachment is not easy.

In other words, since the filter has a net shape as mentioned above, when the filter material is cut to size to form the filter, even if the filter has a regular shape, there may be slight If an external force is applied to the filter, it will deform, and when temporarily attaching the filter, the deformation of the filter must be corrected while overlapping it on the filter frame. For this reason, there is a problem that tacking is not easy, and if the correction is not sufficient, tacking cannot be done.

The present invention was made in view of the current situation, and an object of the present invention is to provide a method for attaching a filter to a filter frame, which allows the filter to be easily attached to the filter frame, and also allows the filter to be attached to the filter frame without distortion. shall be.

[Means for Solving the Problems] A first aspect of the present invention provides, as a means for achieving the above-mentioned object, feeding the tip of a band-shaped filter material to a position immediately above or below the filter frame, and then The filter frame and filter material are supported from the outer surface of the filter material by a support member having a cutting blade, and ultrasonic vibrations are applied under pressure from the outer surface of the filter frame to temporarily attach the filter material to the filter frame. This part is separated from other filter material parts at almost the same time, and then the tacked filter is attached to the filter frame.

It is characterized in that it is attached.

A second invention of the present invention provides, as a means for achieving the above object, a tip of a band-shaped filter material is fed into the immediate vicinity of either the top or bottom of the filter frame, and then a cutting blade is inserted from the outside of the filter material. The supporting member supports the filter frame and the filter material, and applies ultrasonic vibration under pressure from the outside of the filter frame to attach the filter material to the filter frame and remove this part from other filter material parts. It is characterized in that the separation and separation are performed almost simultaneously.

[Operation] In the method for attaching a filter to a filter frame according to the first aspect of the present invention, first, the tip of a band-shaped filter material is sent to a position immediately above or below the filter frame. Next, the filter frame and the filter material are supported from the outer surface of the filter material by a support member having a cutting blade, and ultrasonic vibrations are applied under pressure from the outer surface of the filter frame. As a result, the filter material is temporarily attached to the filter frame, and by pressing the cutting blade against the filter material, the temporarily attached portion is separated from the other filter material portions at the same time or after the temporary attachment. It is done as follows. Thereafter, the temporarily attached filter is permanently attached to the filter frame.

In the method for attaching a filter to a filter frame according to the second aspect of the present invention, first, the tip of the band-shaped filter material is sent to the nearest position above or below the filter frame. Next, the filter frame and the filter material are supported from the outer surface of the filter material by a support member having a cutting blade, and ultrasonic vibrations are applied under pressure from the outer surface of the filter frame. As a result, the filter material is attached to the filter frame, and by pressing the cutting blade against the filter material, the portion attached to the filter frame is separated from other filter material portions at the same time or after the attachment. It is done.

That is, in the first aspect of the present invention, the cutting and tacking of the filter material are performed almost simultaneously, and the condensation is performed, whereas in the second aspect of the present invention, the cutting and tacking of the filter material are performed almost simultaneously. The main installation is done almost simultaneously.

〔Example] An example of implementing the present invention will be described below with reference to the drawings.

1 to 3 show an example of an apparatus for carrying out the method of attaching a filter to a filter frame according to the present invention. There are a pair of mounting tables on which both ends of the filter frame 2 that has come and stopped are placed, and these mounting tables 1.1 are slidably driven in the distance direction as shown in FIG. 3 to hold the filter frame 2. It is now possible to release the .

At the upper position of both the mounting tables 1.1, there are
As shown in the figure, an ultrasonic processing device 4.4 for temporarily attaching a filter material 3 to a filter frame 2, which will be described later,
They are arranged so as to be movable up and down, and a pressing member 5 that presses the filter frame 2 from above is arranged between both of these ultrasonic processing devices 4.4.

As shown in FIG. 4, the filter frame 2 is formed by plastic molding into a rectangular flat frame shape having, for example, four windows 2a, and the filter material 3 has a first
As shown in FIGS. 1 and 4, it is formed of a long belt-like material, for example, a net material, and the tip thereof is conveyed from the left to the right in FIG. It is now being sent. Then, by cutting at the positions of the two cutting lines indicated by L in FIG. 4,
A filter corresponding to filter frame 2 is configured.

On the other hand, in the lower position of this filter, there are
As shown in the figure, a support stand 6 is disposed to support the filter frame 2 and the filter material 3 from below, which are pressed from above by the pressing member 5. Corresponding to the sonic processing device 4.4, the cutting blade 8
．． Support members 7.7 having 8 in each case are arranged. These support members 7.7 slide independently from each other in the left and right directions in FIG. It has become.

As shown in FIGS. 5 and 6, each support member 7 includes a support surface 7a that supports the filter frame 2 and the filter material 3 from below, and a cutting blade 8 attached to the support member 7. The vertical dimensional difference W between the tip of the support surface 7a and the support surface 7a is normally set to about 1 mm. Then, as will be described in detail later, the filter frame 2 is
By applying ultrasonic vibration with pressure P from the top side of
Cutting filter material 3 and filter frame 2 of filter material 3
Temporary attachment to the base is performed at the same time or one after the other.

In addition, in FIGS. 5 and 6, reference numeral 9 is a protrusion provided on the lower surface of the filter frame 2 for welding with the filter material 3, and this protrusion 9 is, for example, provided on the outer periphery of the window 2a. 2
Articles are provided. The filter frame 2 and the filter material 3 are welded together via the protrusions 9.

Next, a method of attaching the filter to the filter frame in the above embodiment will be explained.

When installing, first, as shown in FIG. 1, with the pair of mounting tables 1.1 moved in the approaching direction, the filter frame 2 is transported in the front and back directions of FIG. 1. While the filter frame 2 is being transported to the two support stands 1, 1, the horizontal dimension in FIG. 1 is measured by a sensor (not shown), and the support members 7 are
．． 7 is adjusted in the distance direction.

On the other hand, the tip of the filter material 3 is fed to a position directly below the filter frame 2 at the same time or in parallel with the placement of the filter frame 2 on the multi-layer stand 1.1, and its tip edge is placed on the first
As shown in the figure, it stops after passing the cutting blade 8 on the right side. The reason for this will be explained later.

Next, as shown in FIG. 2, the center portion of the filter frame 2 is pressed from above by the pressing member 5, and the filter frame 2 and the filter material 3 are pressed onto the support stand 6, and the filter frame 2 is pressed onto the support base 6, and the filter frame 2 is pressed from above by the pressing member 5. So, in this state, both numbers stand 1.1
is driven to slide away. As a result, both number stand 1. The holding of filter frame 2 by 1 is released.

FIGS. 3 and 5 show this state.

Next, both ultrasonic processing devices 4.4 are lowered, and the filter frame 2 and the filter material 3 are pressed from above with pressure P, and ultrasonic vibrations are applied in this state. Then, as shown in Section 6, the tips of both cutting blades 8 are bitten into the filter frame 2, and the filter material 3 is cut into two pieces fji! shown in FIG. The filter material is cut at the L and L positions, and the filter material between the two cutting lines and L is cut.3.
That is, the filter is temporarily attached to the protrusions 9 of the filter frame 2.

The temporarily attached filter frame 2 and the filter are then transported to a numbered position, and the filter is permanently attached to the filter frame 2 by an ultrasonic processing device (not shown).

Thereafter, the above operation is repeated, and the filters are sequentially attached to the filter frame 2.

Therefore, the separation of the filter from the filter material 3,
Since the tacking of the filter to the filter frame 2 is done almost simultaneously, even if the tacking is done before the separation, and even if the separation is done before the tacking, the filter No unnecessary external force is applied to the filter separated from the material 3, and once it is temporarily attached, the filter will not deform even if an external force is applied, so the filter, which was previously essential, will not be deformed. Deformation correction work becomes unnecessary. For this reason, the filter frame 2 of the filter
Installation can be done easily and with high precision.

Also, since the filter material 3 is cut not only on the left side in FIG. 1 but also on the right edge of the feeding tip in the figure, the filter can be temporarily attached to the filter frame 2 easily.
This can be done more reliably.

That is, cutting the filter material 3 on the leading end side in the feeding direction is not necessary if the amount of fall of the filter material 3 and the dimensions of the filter frame 2 are always constant.

However, in reality, the feed amount of the filter material 3 and the dimensions of the filter frame 2 are not necessarily constant, so if the feed amount of the filter material 3 deviates to the smaller side and the dimension of the filter frame 2 deviates to the larger side, Otherwise, tacking may become insufficient or impossible.

However, as in the example of the one-piece implementation, by feeding the tip of the filter material 3 a little extra and sometimes cutting off the excess part during tacking, even in the above-mentioned case, it is possible to reliably attach the filter material 3. Temporary attachment can be performed.

In addition, in the example of the embodiment, the cutting blade 8 has a vertical dimension difference W
Although a case has been described in which the support member 7 is fixed to the support member 7 in a state where only the support surface 7a protrudes from the support surface 7a, normally
The cutting blade 8, which is recessed below, is sometimes made to protrude above the support surface 7a during temporary attachment, or the disc-shaped rotary blade is sometimes moved in the front and back directions in FIG. 1 during temporary attachment. Alternatively, the separation may be performed.

Further, in the example of the embodiment described above, a case has been described in which the leading end of the filter material 3 is fed into a position directly below the filter frame 2, but it may be fed into a position directly above the filter frame 2.

Furthermore, in the example of the embodiment, a case is described in which the separation of the filter from the filter material 3 and the temporary attachment to the filter frame 2 are performed almost simultaneously, and then the temporarily attached filter is permanently attached to the filter frame 2. However, the separation of the filter from the filter material 3 and the attachment to the filter frame 2 may be performed almost simultaneously.

[Effects of the Invention] As explained above, the first aspect of the present invention is to feed the tip of a band-shaped filter material to the nearest position on either the upper or lower side of the filter frame, and then from the outer surface side of the filter material, The filter frame and filter material are supported by a support member having a cutting blade, and ultrasonic vibrations are applied under pressure from the outside of the filter frame to temporarily attach the filter material to the filter frame and remove other filter materials from this area. The filter is separated from the other parts at almost the same time, and then the temporarily attached filter is attached to the filter frame, so it is easy to attach the filter to the filter frame, and the filter can be attached to the filter frame without distortion. Can be installed on.

In addition, the second aspect of the present invention is to feed the distal end of the strip-shaped filter material to a position immediately above or below the filter frame, and then to cut the filter frame from the outer surface of the filter material using a support member having a cutting blade. and supports the filter material, and applies ultrasonic vibration under pressure from the outside of the filter frame to attach the filter material to the filter frame and separate this part from other filter material parts.
Since they are carried out almost simultaneously, there is no need for tacking, and work efficiency can be further improved.

[Brief explanation of drawings]

Figures 1 to 3 are explanatory diagrams sequentially showing an example of an apparatus for carrying out the method for attaching a filter to a filter frame according to the present invention according to the work procedure, and Figure 4 is a configuration showing an example of a filter frame. Fig. 5 is a detailed view of the main part of Fig. 3, and Fig. 6 shows the condition when the filter is temporarily attached to the filter frame.
It is a figure equivalent figure. Mounting table Filter material support member Cutting blade Cutting line pressure 2; Filter frame 4: Ultrasonic processing device 7a: Support surface 9/Protrusion W: Vertical dimension difference Figure 1 Utility model registration applicant Seidensha Electronics Industry Co., Ltd. Ono Sangyo Co., Ltd. Figure 3 Figure Figure Figure Figure

Claims (1)

[Claims] 1) Feed the tip of a band-shaped filter material into the immediate vicinity of either the top or bottom of the filter frame, and then cut the filter frame and filter material from the outside of the filter material using a support member having a cutting blade. While supporting the filter frame, ultrasonic vibrations are applied under pressure from the outside side of the filter frame to temporarily attach the filter material to the filter frame and separate this part from other filter material parts at almost the same time. A method for attaching a filter to a filter frame, which comprises permanently attaching the temporarily attached filter to the filter frame. 2) Feed the tip of the band-shaped filter material to the position closest to either the top or bottom of the filter frame, then support the filter frame and the filter material from the outside of the filter material with a support member having a cutting blade, and remove the filter from the outside. A filter frame for a filter characterized in that ultrasonic vibration is applied under pressure from the outer surface of the frame to attach a filter material to the filter frame and to separate this portion from other filter material portions almost simultaneously. How to attach to.