JP2009208869A - Filter peeling method and filter peeling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter peeling method and device capable of efficiently peeling a filter adhering to a feed sheet with no adhesive applied to the filter side and attaching the filter to a product. <P>SOLUTION: The feed sheet (b) with the filter (a) peelably adhering to the upper surface thereof is made to travel horizontally, and the feed sheet (b) is folded at an acute angle at the distal end of a slide base 4, where this action of acute-angled folding moves the filter (a) to a cradle 7 while peeling the adhering filter (a). The cradle 7 applies a negative pressure to the bottom face of the filter (a) from inside the cradle 7 so as to bring the filter (a) in close contact with a surface of the cradle 7, thereby holding the filter (a) resting at a fixed position on the upper surface 7a of the cradle 7. In this state, a vacuum head 16 of a robot arm 15 comes to move the filter (a) to a place for the next process. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  In the present invention, only the filter is peeled off from a plurality of filters that are adhered in a regular interval (pitch) in the vertical and horizontal directions to a supply sheet (mounting paper) having an adhesive upper surface that is adhesive. Thus, the present invention relates to a filter peeling method and a filter peeling apparatus for shifting to a fixed position.

For example, when a filter with air permeability is continuously attached to a product, the filter is attached to a supply sheet that has a sticky top surface, and the supply sheet is rolled up on a reel and carried into the assembly process. Often used. In the assembly process, after the reel is set in the peeling device, the supply sheet is fed out from the reel, the filter is peeled off from the supply sheet, and transferred to the product to be attached by a robot arm, etc. It is fixed using etc.
As such a method, an example of a label is introduced in Japanese Patent Laid-Open No. 2006-290412. The contents include a moving means for moving a mount having a label adhered to the upper surface in a predetermined direction, a peeling edge portion where the mount is bent, a peeling plate formed at a tip portion in the moving direction of the mount, and a peeling edge portion. A vacuum suction head that adsorbs the label and peels it from the mount when a part of the label is peeled off from the mount, and the label is located across the tip of the peeling edge portion. The mount slide surface near the tip of the release plate where the other side of the adhesive mount slidably contacts, and the mount slide contact surface near the tip of the release plate where the other side of the mount where the label is peeled contact, It is the structure which opened the several suction hole which attracts | sucks each other surface side.
JP 2006-290312 A

However, in the case of a filter, air permeability is necessary due to its function, and naturally it cannot be pasted on a mount using glue like a label.
However, the method similar to the known label peeling method can be applied to the filter, and as a result of extensive research, the present inventors have completed a practical method and apparatus in the case of the filter. It came to.
The first object of the present invention is to supply a filter by adhering the filter in multiple rows to a backing sheet (hereinafter referred to as “supply sheet”), peeling the filter from the supply sheet, and applying the peeled filter to a product to be attached. It is an object of the present invention to provide a filter peeling method and an apparatus for transferring it using an arm or the like.
Furthermore, the second object is to remove the filter that can be accurately attracted to the suction head of the robot arm and transferred to the target product side by accurately stopping the filter peeled off from the supply sheet at a predetermined position. A method and apparatus are provided.

  In order to achieve the above object, according to the first aspect of the present invention, there is provided a filter peeling method comprising: a. The supply sheet with the filter adhering to the upper surface is run in the horizontal direction, and the supply sheet is folded back at an acute angle, and the adhesive filter is peeled off by the action of the acute folding to move onto the cradle. Then, a negative pressure is applied to the lower surface of the filter on the cradle, and the filter is stationary at a fixed position on the upper surface of the cradle.

  Furthermore, in the invention described in claim 2, in the filter peeling method according to claim 1, the filter on the cradle is sucked and held by the suction head of the robot arm and transferred to the next section. It is characterized by.

Furthermore, in the invention according to claim 3, in the filter peeling apparatus,
a. A slide base formed by forming a top surface horizontally and forming an edge portion sharpened at an acute angle at the tip;
b. The slide base approaches the edge of the slide base, the top surface is formed smoothly, and the top surface is set to a level slightly lower than the level of the top surface of the slide base. A cradle formed by forming a suction hole between the decompression space and the top surface;
c. A belt-like supply sheet that is folded back from the top surface of the slide base via the edge portion and adheres a filter to the top surface so as to be peeled off,
d. It is characterized by comprising.

  Furthermore, in the invention according to claim 4, in the filter peeling apparatus according to claim 3, above the cradle, the cradle is opposed to the cradle and is movable up and down and laterally. And a suction head for lowering the filter that has been transferred from the supply sheet onto the cradle and sucking it from above and transferring it to the next section. is there.

  Furthermore, in the invention according to claim 5, in the filter peeling apparatus according to claim 3, the upper surface of the supply sheet is adhered to the filter at the same pitch vertically and horizontally. It is.

  Furthermore, in the invention according to claim 6, in the filter peeling apparatus according to claim 3, when the filter peeled on the cradle advances and reaches a predetermined position, this position is detected. A leading position detection sensor is provided, and the feed sheet is stopped upon receipt of a signal from the sensor.

Furthermore, in the invention according to claim 7, in the filter peeling apparatus according to claim 3, the slide base is used to correct the displacement in the left-right direction of the adhesion position of the filter adhered on the supply sheet. A correction device is provided above and a horizontal blur detection sensor is provided for detecting the positions of the left and right ends of the filter row adhered to the supply sheet. Based on the signal from the horizontal blur detection sensor, the filter is in a fixed position. The supply sheet is configured to be finely adjusted left and right so that the supply sheet is separated from the supply sheet and moved onto the cradle.
According to this invention, even when the filter is not accurately adhered to the supply sheet, the filter can be peeled by correcting it to a fixed position.

Furthermore, in the invention according to claim 8, in the filter peeling apparatus according to claim 3, a plurality of suction holes provided in the cradle are within a range of the filter diameter in the direction in which the filter is pushed out. It is characterized by being provided.
According to the present invention, the filter can be guided to a fixed position on the cradle and can be stopped.

Furthermore, in the invention according to claim 9, in the filter peeling apparatus according to claim 3, the suction force P sucked by the suction hole of the cradle is such that at least a part of the filter adheres to the supply sheet. P <P ₁ is set in relation to the adhesive strength P ₁ .
According to the present invention, the filter can be smoothly moved to a fixed position on the cradle while pushing out the filter from the supply sheet.

The effects of the present invention are as follows.
1. Adhesive strength is applied to the supply sheet side, and the filter is only adhered to the upper surface of the supply sheet with a weak adhesive force. Therefore, the filter is gradually peeled off from the supply sheet simply by folding the supply sheet at the tip of the slide base. Can be smoothly transferred onto the cradle.
2. Since no adhesive is applied to the filter side, air permeability as a filter is not hindered.
3. By providing multiple suction holes in a row on the cradle, the adhesion of the filter to the cradle can be changed according to the position of the filter. be able to.
4). When the filter moves to a fixed position on the cradle, all the suction holes are set so as to be closed with the filter. It can be positioned well.
5. Even if the adhesive position of the filter adhered to the supply sheet in multiple rows is misaligned from side to side, this sensor detects this misalignment, and a correction device that corrects the supply sheet by making fine adjustments to the left and right provides a filter. It is possible to shift to a fixed position on the cradle with high accuracy.
6). When the filter moves forward and stops on the cradle, the position of this filter is detected to stop the running (driving) of the supply sheet, thus reducing power consumption and saving energy.

In the present invention, the filter to be peeled is a dustproof filter, antibacterial filter, filtration filter, or the like, and it is necessary that air permeability and filterability are secured at least at a density that is adsorbed by negative pressure. The material is resin, paper, fiber, etc., but this material is not particularly limited.
The supply sheet may be a single sheet, but it is practical to use a supply sheet that is wound on a reel from a process of continuous mass production. The material used is a single layer or a composite layer of paper or plastic film (sheet).
The pressure-sensitive adhesive applied to the upper surface of the supply sheet is generally referred to as an easily peelable pressure-sensitive adhesive, and for example, SOMATAC (registered trademark) can be used.
The slide base and the cradle can be arbitrarily used such as resin, metal, and wood.

Examples of the present invention will now be described.
First, a peeling device for assembling a filter to a product will be described.
1A shows a state where the filter is attached to a holder for assembling the filter to the product, FIG. 1B is a cross-sectional view showing a state where the filter is attached to the holder by a robot arm, and FIG. 2 is a cross-sectional view showing a state in which the filter is caulked to the holder, FIG. 2 is an explanatory view of a supply sheet in which filters are adhered in multiple rows on the upper surface, FIG. 3 is an explanatory view of a filter peeling device, and FIG. 5 is an enlarged explanatory view, FIG. 5 is an explanatory view of the correction device with the filter on the supply sheet shifted to the left and right, FIG. 6 is an explanatory view of the supply sheet and the cradle, and FIG. 8 (a) is a plan view of the cradle, FIG. 8 (b) is a front view of the cradle, and FIG. 8 (c) is a cross-sectional view taken along the line AA ′ in FIG. 8 (a).

Hereinafter, the peeling apparatus will be described with reference to the drawings.
First, in FIG. 1, a is a filter, 100 is a filter holder, 101 is a flow path, 102 is a mounting screw for a product, 103 is a mounting step portion of the filter a, and 104 is a crimping portion.
The filter a transmits air and water vapor, but has a performance of preventing water droplets and invisible dust / dust from entering the inside, and a resin fiber is used as a material.
As shown in FIG. 2, the filter a is adhered to the surface of a strip-shaped supply sheet b coated with an easily peelable adhesive SOMATAC (registered trademark) c at the same pitch in the vertical and horizontal order. The supply sheet b is applied to the peeling device 1 to peel off the filter a, and the filter a peeled off by the robot arm is moved to the holder 100 or the filter attachment port of the product.
In addition, as said easily peelable adhesive, if it is the adhesive which has adhesiveness of the grade which the filter a does not peel naturally, and does not transfer to the filter a side after peeling, use of things other than the above illustration is possible.

This peeling apparatus 1 is shown in FIGS. The peeling device 1 has a machine base 2 in FIG. 3 and a reel 3 on which the filter sheet a sticking the filter a is scraped on the machine base 2, and the supply sheet b fed out from the reel 3 is: The tip edge portion 4a shown in FIG. 6 disposed at the center of the machine base 2 is formed at an acute angle, and the upper surface of the slide base 4 is smooth and is guided by a guide roller 5 to move forward. It is folded at the portion 4a, and is scraped off by the scraping reel 6 that scrapes off the supply sheet b after the filter a assembled under the machine base 2 is peeled off.
The edge portion 4a is slightly rounded so that the supply sheet b can be smoothly reversed.

Further, in the upper part of the machine base 2 and in front of the edge part 4a of the slide base 4, a cradle 7 for placing the filter a peeled off from the supply sheet b at a fixed position is shown in FIG. As shown, the upper surface 7a is arranged so as to be slightly lower than the edge portion 4a of the slide base 4.
As shown in FIGS. 8A to 8C, the cradle 7 has three suction holes 8a to 8c aligned on the upper surface thereof in the advancing direction of the supply sheet b at equal intervals. The suction holes 8a to 8c communicate with a negative pressure port 9 connected to a negative pressure device (vacuum device) (not shown) formed inside the cradle 7, and a distance from the suction holes 8a to 8c. L ₁ is set to a size that fits within the diameter L of the filter a shown in FIG. 7, and all the suction holes 8 a to 8 c are closed by the filter a that has finished moving on the cradle 7.

  In FIG. 5, 10 forms sleeve plates 11 and 11 a sandwiching both edges of the supply sheet b on the upper surface of the slide base 4 on the machine base 2, and the step motor 12 moves the supply sheet b in the traveling direction. This is a correction device for fine adjustment in the left-right direction. When the filter a is affixed to the supply sheet b, as shown in FIG. 5, an overall swell (exaggerated for easy understanding) may occur. In order to cope with the undulation, the position of the left and right ends of the filter a is detected by the sensors 13 and 13a, and the state of the undulation is grasped from the detected data and the position of the supply sheet b is finely adjusted to the left and right. To do. As a result, it is possible to adjust the position so that the correct position, that is, each filter a is transferred to the suction holes 8 a to 8 c of the cradle 7 in an orderly manner.

In FIG. 3, when 14 is detected from the supply sheet b to the end (leading) filter a transferred to the cradle 7, the rotation of the guide roller 5 and the scraping reel 6 is stopped, and then the robot arm 15. When the suction head 16 moves all the filters a at the head, the guide roller 5 and the take-up reel 6 are driven again to move the filters a on the supply sheet b onto the receiving base 7. .
In addition, since the suction force to the filter a can be adjusted by providing the suction hole 8b substantially in the middle between the suction hole 8a and the suction hole 8c, the filter a can smoothly slide on the cradle. .

  Further, as shown in FIG. 8C, each of the suction holes 8a to 8c is connected to the branch intake passage for each of the suction holes 8a to 8c with respect to the negative pressure port 9, and the branch intake passage has one negative pressure. Since all of the plurality of intake holes 8a to 8c are not blocked by the filter a because they are collected in the port 9 and connected to an external negative pressure (suction) device, the adhesive force to the supply sheet b Can be slid while being attracted to the cradle 7, so that when the suction holes 8a to 8c are all closed (final position of the filter a), the maximum suction force is obtained and the cradle The filter a is adsorbed and fixed to the upper surface of 7.

In Example 2, a peeling method for continuously peeling the filter a from the supply sheet b using the filter peeling apparatus 1 described in Example 1 will be described with reference to FIGS.
9 is an explanatory diagram in which a part of the front of the filter a is peeled off from the supply sheet b and starts to move to the cradle 7. FIG. 10 is an explanatory diagram in which the filter a has further advanced. FIG. FIG. 12 is an explanatory view in which all the suction holes 8a to 8c of the cradle 7 are closed by the filter a after moving onto the cradle 7, and FIG. 12 sucks the filter a by the suction head 16 of the robot arm 15 and moves to the next process. FIG. 13 is an explanatory diagram showing the state of the edge portion 4 a of the slide base 4 and the filter a on the cradle 7.
At the start of operation, the negative pressure port 9 of the cradle 7 is connected to an external suction device (not shown), and the suction holes 8a to 8c maintain a suction (negative pressure) state.

  First, as shown in FIG. 9, the supply sheet b drawn from the reel 3 by the rotation of the driving roller 18 driven by the motor 17 advances while being guided by the roller 5 on the slide base 4. Since the edge portion 4a of the slide base 4 is formed at an acute angle, the filter a is gradually peeled from the supply sheet b at this portion, and the filter a moves toward the cradle 7. On the other hand, the supply sheet b is taken up by the take-up reel 6 through the drive roller 18. In this operation, the filter a moves so as to be pushed out from the tip side to the top surface 7a of the cradle 7 as shown in FIGS. 9 to 10 due to its rigidity. In this transition process, as the suction force acting on the filter a, only the suction hole 8a out of the three suction holes 8a to 8c is first closed as shown in FIG. 9, and the suction force at this time becomes the maximum suction force. On the other hand, it is about 1/3. Therefore, the filter a can move while being moved onto the cradle 7.

Further, as shown in FIG. 10, the filter a is pushed by the supply sheet b and advances to close the suction hole 8 a and the suction hole 8 b, but the suction hole 8 c is opened, so that the filter a moves while being moved on the cradle 7. To do.
When the filter a finally reaches the suction hole 8c as shown in FIG. 11, all the suction holes 8a to 8c are closed, so that the suction force to the filter a is maximized. As a result, the filter a is completely brought into close contact with the predetermined position of the cradle 7 and the vertical sensor 14 detects that the filter a has reached the predetermined position, and stops the drive motor to stop the drive roller 18. Stops rotating.

In this state, as shown in FIG. 12, the suction head 16 of the robot arm 15 approaches and sucks the filter a at the end, and moves the filter a to the caulking device as the next step.
In this way, the filter a can be held stationary at a stable position even if the filter a has no adhesive force.
Even if the filter a is meandering (horizontal misalignment) and pasted, the lateral sensor 13 and 13a corrects the travel of the supply sheet b, so the filter a is accurately placed at the set position on the cradle 7. It is possible to guide.

  The present invention can be applied to a case where a product such as a filter or other mechanical component, which should not be coated with an adhesive, is peeled off from a supply sheet. Therefore, the present invention can be applied to an automatic peeling method and apparatus for parts other than a filter.

(A) is explanatory drawing of the state which crimped the filter to the filter holder, (b) is sectional drawing before crimping, (c) is explanatory drawing of the state which crimped the filter Explanatory drawing of filter attached to the supply sheet Illustration of peeling device Illustration of peeling device Explanatory drawing of slide base, cradle, supply sheet, filter, and lateral displacement correction device Illustration of slide base and cradle Explanatory drawing of the suction holes provided in the filter and cradle on the supply sheet (A) is a plan view of the cradle, (b) is a front view, and (c) is a cross-sectional view along the line AA ′. Explanatory drawing of a state in which a part of the filter is peeled off from the supply sheet and transferred to the cradle Illustration of the state where about 2/3 of the filter has moved onto the cradle Illustration of the entire filter moving on the cradle and stationary Explanatory drawing just before the filter is sucked by the suction nozzle of the robot arm Explanatory drawing showing the relationship between the edge of the slide base and the cradle

Explanation of symbols

a Filter b Supply sheet c Easy peelable adhesive 1 Peeling device 3 Reel 4 Slide base 4a Edge portion 7 Receiving bases 8a to 8c Suction hole 10 Correction device 16 Suction head

Claims (9)

  a. The supply sheet with the filter adhering to the upper surface is run in the horizontal direction, and the supply sheet is folded back at an acute angle, and the adhesive filter is peeled off by the action of the acute folding to move onto the cradle. A method of peeling a filter, wherein a negative pressure is applied to the lower surface of the filter on the cradle and the filter is stopped at a fixed position on the upper surface of the cradle.   2. The filter peeling method according to claim 1, wherein the filter on the cradle is sucked and held by a suction head of a robot arm and transferred to the next section. a. A slide base formed by forming a top surface horizontally and forming an edge portion sharpened at an acute angle at the tip;
b. The slide base approaches the edge of the slide base, the top surface is formed smoothly, and the top surface is set to a level slightly lower than the level of the top surface of the slide base. A cradle formed by forming a suction hole between the decompression space and the top surface;
c. A belt-like supply sheet that is folded back from the top surface of the slide base via the edge portion and adheres a filter to the top surface so as to be peeled off,
d. A filter peeling device comprising:   Above the cradle, facing the cradle, and is disposed so as to be vertically movable and laterally movable, and the filter that has moved from the supply sheet onto the cradle is lowered from above. 4. The apparatus for peeling a filter according to claim 3, further comprising a suction head that is sucked and sucked and transferred to the next section.   4. The filter peeling apparatus according to claim 3, wherein a filter is adhered to the upper surface of the supply sheet at the same pitch vertically and horizontally.   A leading position detection sensor is provided for detecting the position when the filter peeled on the cradle advances and reaches a predetermined position, and the traveling of the supply sheet is stopped by receiving a signal from the sensor. 4. The filter peeling apparatus according to claim 3, which is configured as described above.   A correction device is provided on the slide base to correct the lateral displacement of the adhesion position of the filter adhered on the supply sheet, and the positions of the left and right ends of the row of the filter adhered on the supply sheet are determined. Provide a horizontal shake detection sensor to detect, and finely adjust the supply sheet left and right so that the filter peels off from the supply sheet at a fixed position and moves on the cradle based on the signal from this horizontal shake detection sensor The filter peeling apparatus according to claim 3, which is configured.   4. The filter peeling apparatus according to claim 3, wherein a plurality of suction holes provided in the cradle are provided within a filter diameter range in a direction in which the filter is pushed out. The suction force P sucked by the suction hole of the cradle is set to P <P ₁ in relation to at least the adhesive force P ₁ where a part of the filter adheres on the supply sheet. The peeling apparatus of the filter of Claim 3.

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