WO2016072266A1

WO2016072266A1 - Suction chucking head and affixing device provided with same

Info

Publication number: WO2016072266A1
Application number: PCT/JP2015/079721
Authority: WO
Inventors: 正敬近藤; 北島　功朗; 栄治菊地; 田中　利典
Original assignee: オムロン株式会社
Priority date: 2014-11-06
Filing date: 2015-10-21
Publication date: 2016-05-12
Also published as: JP2016088576A; CN106715276A

Abstract

A suction chucking head for suction chucking a sheet-shaped article, the suction chucking head being provided with a head part having a suction chucking face in which a plurality of suction holes are formed, a base part for supporting the head part, and a leaf spring provided between the head part and the base part.

Description

Adsorption head and sticking device provided with the same

The present invention relates to a suction head and a sticking device including the suction head.

Conventionally, a suction head that sucks a sheet-like article is known (for example, see Patent Document 1).

Patent Document 1 discloses a suction disk (suction head) that sucks a label piece (sheet-like article). This suction disk is provided with a plurality of holes, and is configured to suck and hold the label pieces with air.

JP 2007-331806 A

Here, as described above, in the suction head that sucks with air, when the sheet-like article is sucked, the suction surface needs to be in close contact with the sheet-like article. However, due to individual differences (variations) in the placement surface on which the sheet-like article is placed, the adhesion of the suction surface to the sheet-like article may be deteriorated when the placement surface is inclined. There is.

Normally, production lines and inspection lines in factories often have multiple mounting surfaces (mounting tables) (several to a dozen) for efficiency. Or, due to individual differences in installation, all the mounting surfaces may not be strictly horizontal but may be inclined. The direction and the degree of these inclinations also vary depending on the respective mounting surfaces. If the mounting surface is strictly level with the suction surface of the suction head, the adhesion is good, but if the mounting surface is not inclined and level, the adhesion will deteriorate. .

When the adhesiveness is deteriorated, there arises a problem that the sheet-like article falls in the middle or cannot be adsorbed at all.

The present invention has been made to solve the above problems, and an object of the present invention is to improve the adhesion of the suction surface to the sheet-like article when the sheet-like article is sucked. An object is to provide a suction head and a sticking device including the suction head.

An adsorption head according to the present invention is an adsorption head that adsorbs a sheet-like article, and includes a head portion having an adsorption surface in which a plurality of suction holes are formed, a base portion that supports the head portion, a head portion, and a base portion. And a leaf spring provided between the two.

With this configuration, when the sheet-like article is adsorbed, even when the sheet-like article mounting surface is inclined when the suction surface of the head unit is brought into contact with the sheet-like article, the leaf spring is By bending, the suction surface of the head portion is inclined so as to be along the placement surface, so that the suction surface can be brought into close contact with the sheet-like article.

In the suction head, in a state where the first spacer is disposed between the base portion and the leaf spring, the leaf spring is attached to the base portion by the first fastening member, and the second spacer is interposed between the head portion and the leaf spring. The head part may be attached to the leaf spring by the second fastening member.

In this case, two first fastening members may be provided and two second fastening members may be provided.

In the above suction head, the suction surface may be formed flat and may be formed in a rectangular shape when seen in a plan view.

The sticking device according to the present invention includes any one of the suction heads described above, and is configured to stick a sheet-like article sucked by the suction head to a workpiece.

According to the suction head of the present invention and the sticking device including the same, it is possible to improve the adhesion of the suction surface to the sheet-like article when the sheet-like article is sucked.

It is the block diagram which showed the structure of the sticking apparatus by one Embodiment of this invention. It is the perspective view which showed the adsorption | suction head of the sticking apparatus of FIG. FIG. 3 is a plan view of the suction head of FIG. 2. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. FIG. 4 is a sectional view taken along line BB in FIG. 3. FIG. 3 is an exploded perspective view of the suction head of FIG. 2. It is a figure for demonstrating operation | movement of the sticking apparatus by this embodiment, Comprising: It is the figure which showed typically the state by which the illumination body and the protection sheet were conveyed. It is a figure for demonstrating operation | movement of the sticking apparatus by this embodiment, Comprising: It is the figure which showed typically the state by which the adsorption | suction head contacted the protection sheet. It is a figure for demonstrating operation | movement of the sticking apparatus by this embodiment, Comprising: It is the figure which showed typically the state by which the adsorption | suction head which adsorb | sucked the protection sheet was moved above the illumination body. It is a figure for demonstrating operation | movement of the sticking apparatus by this embodiment, Comprising: It is the figure which showed typically the state by which the protective sheet was stuck on the lighting body by the adsorption head. It is a figure for demonstrating operation | movement of the sticking apparatus by this embodiment, Comprising: It is the figure which showed typically the state by which the adsorption | suction head was returned to the original position.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

-Constitution-
First, the configuration of the sticking device 100 according to an embodiment of the present invention will be described with reference to FIGS. This sticking device 100 is provided, for example, in an inspection device (not shown) for inspecting the illuminating body 200 (see FIG. 7), and the protective sheet 250 peeled off from the illuminating body 200 during the inspection (see FIG. 7). Is again pasted on the illuminating body 200. The illuminating body 200 is a planar illuminating body used for, for example, a liquid crystal display device. The lighting body 200 is an example of the “work” of the present invention, and the protective sheet 250 is an example of the “sheet-like article” of the present invention.

As shown in FIG. 1, the sticking device 100 includes a suction head 1 that sucks the protection sheet 250, a drive mechanism 2 that drives the suction head 1, and an air source 3 that sucks the protection sheet 250. It has.

As shown in FIGS. 2 to 6, the suction head 1 includes a head portion 11, a base portion 12 that supports the head portion 11, and a leaf spring 13 provided between the head portion 11 and the base portion 12. Contains.

The head part 11 is formed in a rectangular parallelepiped shape, and has a suction surface 11a in which a plurality of suction holes 11b are formed. The suction surface 11a is formed flat and is formed in a rectangular shape when seen in a plan view. The suction surface 11a is disposed on the side opposite to the base portion 12 and is disposed so as to face downward.

Some of the plurality of suction holes 11b are disposed at both ends in the short direction of the suction surface 11a with a gap in the longitudinal direction. That is, the suction holes 11b are arranged in the vicinity of the outer edge of the long side along the long side of the suction surface 11a. The suction hole 11b is also disposed near the center (inside) of the suction surface 11a. In addition, arrangement | positioning of the suction hole 11b shown in FIG. 3 etc. is an example, and can be changed suitably.

Further, an air passage 11c (see FIGS. 4 and 5) is formed inside the head portion 11, and each suction hole 11b communicates with the air passage 11c. A mounting bracket 11d for an air hose (not shown) is provided on the side surface of the head portion 11, and an air passage 11c communicates with the mounting bracket 11d. An air source 3 (see FIG. 1) is connected to the air hose, and air can be supplied to and discharged from the air source 3 to each suction hole 11b.

Further, the head portion 11 is provided with a mounting hole 11e (see FIG. 5) in which a screw 41b, which will be described later, is formed on the surface on the base portion 12 side, and for the relief in which the head of the screw 41a described later is disposed. The recess 11f (see FIG. 4) is formed.

The base portion 12 is formed in a rectangular parallelepiped shape (plate shape) and is attached to the drive mechanism 2 (see FIG. 1). The base portion 12 is formed so as to be approximately the same size as the head portion 11 in plan view.

The base portion 12 is provided with a mounting hole 12a (see FIG. 4) to which the screw 41a is attached on the surface on the head portion 11 side, and an escape through hole 12b in which the head of the screw 41b is disposed. (See FIG. 5).

As shown in FIG. 6, the plate spring 13 is formed in a flat plate shape and is provided so that the head portion 11 can be inclined with respect to the base portion 12. The plate spring 13 is formed in a rectangular shape as viewed in a plan view, and is formed so as to be smaller than the head portion 11 and the base portion 12. The leaf spring 13 is attached to the base portion 12 and to the head portion 11.

Specifically, the leaf spring 13 is formed with an insertion hole 13a into which the screw 41a is inserted and an insertion hole 13b into which the screw 41b is inserted. The insertion holes 13a are respectively provided at both ends of the leaf spring 13 in the longitudinal direction, and are arranged near the center in the lateral direction. The insertion holes 13b are provided at both ends of the leaf spring 13 in the short direction, and are arranged near the center in the longitudinal direction. That is, the

insertion holes

13a and 13b are disposed at the outer edge of the leaf spring 13, the insertion hole 13a is disposed near the center of the short side, and the insertion hole 13b is disposed near the center of the long side.

A spacer 42 a is inserted into the screw 41 a, and the spacer 42 a is disposed between the leaf spring 13 and the base portion 12. A spacer 42 b is inserted into the screw 41 b, and the spacer 42 b is disposed between the leaf spring 13 and the head portion 11. The

spacers

42a and 42b are formed in an annular shape and in a plate shape.

In addition, two screws 41a and two spacers 42a are provided, and two screws 41b and two spacers 42b are provided. The

screws

41a and 41b are examples of the “first fastening member” and the “second fastening member” of the present invention, respectively. The

spacers

42a and 42b are respectively the “first spacer” and the “first fastening member” of the present invention. It is an example of “two spacers”.

The screw 41a is attached to the attachment hole 12a of the base portion 12 in a state where the screw 41a is inserted into the insertion hole 13a and the spacer 42a. At this time, the spacer 42 a is disposed between the leaf spring 13 and the base portion 12, and a gap is formed between the leaf spring 13 and the base portion 12. Accordingly, the leaf spring 13 is supported at two points with respect to the base portion 12. Note that the head of the screw 41 a is disposed in the recess 11 f of the head portion 11.

Further, the screw 41b is attached to the attachment hole 11e of the head portion 11 in a state where the screw 41b is inserted into the insertion hole 13b and the spacer 42b. At this time, the spacer 42 b is disposed between the leaf spring 13 and the head portion 11, and a gap is formed between the leaf spring 13 and the head portion 11. Thereby, the head part 11 is supported at two points with respect to the leaf spring 13. The head of the screw 41b is disposed in the through hole 12b of the base portion 12.

The drive mechanism 2 (see FIG. 1) is provided to move the suction head 1. Specifically, the drive mechanism 2 moves the suction head 1 up and down with respect to the conveyor 300 (see FIG. 7) on which the illuminating body 200 and the protective sheet 250 are placed, and above the illuminating body 200 and the protective sheet 250. It is provided to move the suction head 1 in the horizontal direction so as to pass between them.

The air source 3 (see FIG. 1) generates a negative pressure to adsorb the protective sheet 250 to the adsorption surface 11a of the adsorption head 1 and releases the negative pressure to release the negative pressure from the protective sheet 250 on the adsorption surface 11a. It is comprised so that adsorption | suction may be cancelled | released.

-Operation-
Next, the operation of the sticking device 100 according to the present embodiment will be described with reference to FIGS. Hereinafter, a case where the illuminating body 200 and the protective sheet 250 are sequentially conveyed by the conveyor 300 to the sticking apparatus 100 will be described as an example. 7 to 11, only the suction head 1 of the sticking device 100 is shown in consideration of easy viewing.

For example, the illuminating body 200 has been inspected, and the protective sheet 250 is peeled off from the illuminating body 200 during the inspection and temporarily placed in the vicinity of the illuminating body 200. In addition, a rectangular frame-shaped double-sided tape 202 is provided on the surface 201 of the illuminating body 200. The illuminating body 200 and the protective sheet 250 are formed in a rectangular shape when viewed in plan, and are placed on the flat placement surface 301 of the conveyor 300.

First, as shown in FIG. 7, the illumination body 200 and the protective sheet 250 are conveyed by the conveyor 300. As a result, the protective sheet 250 is disposed below the suction head 1.

As shown in FIG. 8, the suction head 1 is lowered by the drive mechanism 2 (see FIG. 1), and the suction surface 11a (see FIG. 2) is brought into contact with the protective sheet 250. In this state, the air source 3 (see FIG. 1) generates a negative pressure, whereby the protective sheet 250 is adsorbed on the adsorption surface 11a.

Thereafter, as shown in FIG. 9, the suction head 1 is raised and moved in the horizontal direction by the drive mechanism 2. Accordingly, the suction head 1 that has sucked the protective sheet 250 is disposed above the illuminating body 200.

Then, as shown in FIG. 10, the suction head 1 is lowered by the drive mechanism 2. For this reason, the protective sheet 250 sucked by the suction head 1 is brought into contact with the surface 201 of the illuminating body 200. At this time, the protective sheet 250 is attached to the illuminating body 200 by the double-sided tape 202 of the illuminating body 200. Thereafter, the negative pressure is released by the air source 3 and the suction of the protective sheet 250 by the suction head 1 is released.

Then, as shown in FIG. 11, the suction head 1 is raised and moved in the horizontal direction by the drive mechanism 2. In addition, the illuminating body 200 with the protective sheet 250 attached is conveyed (discharged) by the conveyor 300, and the new illuminating body 200 and the protective sheet 250 are conveyed (supplied).

After that, the above operation is repeated.

-effect-
In the present embodiment, by providing the leaf spring 13 between the head portion 11 and the base portion 12 as described above, the suction surface 11a of the head portion 11 is attached to the protection sheet 250 when the protection sheet 250 is sucked. Even when the placement surface 301 on which the protective sheet 250 is placed is inclined when the contact is made, the leaf spring 13 bends so that the suction surface 11a of the head portion 11 follows the placement surface 301. Since it is inclined, the suction surface 11 a can be brought into close contact with the protective sheet 250. Therefore, it is possible to improve the adhesion of the suction surface 11a to the protection sheet 250 when the protection sheet 250 is sucked. As a result, the suction of the protective sheet 250 by the suction head 1 can be performed appropriately. In addition, as a cause of the inclination of the mounting surface 301, the individual difference (variation) of the mounting surface 301 is mentioned, for example.

In this embodiment, two screws 41 a and a spacer 42 a are provided, and the leaf spring 13 is supported at two points with respect to the base portion 12, thereby easily fixing the position of the leaf spring 13 with respect to the base portion 12. can do. Similarly, two screws 41b and a spacer 42b are provided, and the head portion 11 is supported at two points with respect to the leaf spring 13, whereby the position of the head portion 11 with respect to the leaf spring 13 can be easily fixed. .

Further, in the present embodiment, by forming the suction surface 11a in a rectangular shape, the suctioned protective sheet 250 can be pressed against the surface 201 of the illuminating body 200 with the entire suction surface 11a. Thereby, the rectangular protective sheet 250 can be appropriately affixed to the rectangular frame-shaped double-sided tape 202.

-Other embodiments-
In addition, embodiment disclosed this time is an illustration in all the points, Comprising: It does not become a basis of limited interpretation. Therefore, the technical scope of the present invention is not interpreted only by the above-described embodiments, but is defined based on the description of the scope of claims. Further, the technical scope of the present invention includes all modifications within the meaning and scope equivalent to the scope of the claims.

For example, in the present embodiment, an example in which the present invention is applied to the sticking device 100 provided in the inspection device of the illuminating body 200 has been described. However, the present invention is not limited thereto, and the present invention is not limited to this. The invention may be applied.

In the present embodiment, an example in which the attaching device 100 attaches the protective sheet 250 to the illuminating body 200 has been described. However, the present invention is not limited thereto, and the attaching device may attach a label to a container or the like.

In the present embodiment, an example in which the present invention is applied to the suction head 1 of the sticking device 100 has been described. However, the present invention is not limited thereto, and the present invention is applied to suction heads of other devices such as a transport device (not shown). May be.

In the present embodiment, the suction surface 11a is formed in a rectangular shape. However, the present invention is not limited to this, and the suction surface may be formed in another shape such as a circle. For example, the shape of the suction surface is set according to the shape of the sheet-like article to be sucked.

Further, in the present embodiment, an example in which two

screws

41a and 41b are provided is shown, but the present invention is not limited to this, and the number of screws may be any number. Further, the arrangement of the screws can be changed as appropriate.

The present invention can be used for a suction head that sucks a sheet-like article and a sticking device including the suction head.

DESCRIPTION OF SYMBOLS 1 Adsorption head 11 Head part

11a Adsorption surface

11b Suction hole 12 Base part 13 Leaf spring 41a Screw (1st fastening member)
41b Screw (second fastening member)
42a Spacer (first spacer)
42b Spacer (second spacer)
100 sticking device 200 lighting body (work)
250 Protection sheet (sheet-like article)

Claims

An adsorption head for adsorbing a sheet-like article,
A head portion having a suction surface formed with a plurality of suction holes;
A base portion for supporting the head portion;
A suction head comprising: a leaf spring provided between the head portion and the base portion.
The suction head according to claim 1,
With the first spacer disposed between the base portion and the leaf spring, the leaf spring is attached to the base portion by a first fastening member,
A suction head, wherein the head portion is attached to the leaf spring by a second fastening member in a state in which a second spacer is disposed between the head portion and the leaf spring.
The suction head according to claim 2,
A suction head comprising two first fastening members and two second fastening members.
The suction head according to any one of claims 1 to 3,
The suction head is formed flat and has a rectangular shape when seen in a plan view.
A suction head according to any one of claims 1 to 4,
A sticking apparatus configured to stick a sheet-like article sucked by the suction head to a work.