JPH082720A - Pneumatic separator for sheet shape article - Google Patents

Abstract

PURPOSE:To provide a pneumatic separator for sheet shape articles capable of sucking and taking out one by one exactly from the uppermost layer of the sheet shape articles piled by plural sheets without special process such as the sprinkle of a parting agent to the sheet shape article which is a work. CONSTITUTION:In a device for sucking the sheet shape articles 10 piled on a work receive pedestal 2 one by one by a vacuum suction pad 9 and taking them out of the work receive pedestal 2 and transferring them, a compressed air blow out nozzle 7 for blowing the compressed air from the environs of the sheet shape article 10 toward the sheet shape articles 10 sucked and lifted by the vacuum suction pads 9 is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic separator for preventing a plurality of sheet-like materials such as green sheets from being adsorbed and taken out when adsorbing them one by one and taking them out and transferring them.

[0002]

2. Description of the Related Art Conventionally, when forming, for example, a thin ceramic sheet as a sheet-like article, each green sheet is taken out from the powder molding machine every time it is molded by the powder molding machine, and before the green sheets are stacked, After applying a powder release agent on the back side and processing so that even if you stack green sheets, you can peel off one by one, stack a plurality of sheets, then adsorb one by one, and move to the next step. Was there.

Further, in the case of adsorbing and taking out one by one from a plurality of laminated green sheets, if two or more sheets are adsorbed, this is detected by a sensor, and the detection signal is used to bounce off the line. I was doing.

[0004]

By the way, among the above-mentioned conventional techniques, a release agent is sprinkled on the front and back surfaces of each green sheet so that the green sheets are peeled off one by one when adsorbed. In the conventional technology, a device for spraying the release agent and a device for removing the attached release agent in the subsequent step are required, which causes a problem that the equipment cost increases, and the release agent scatters, which causes deterioration of the working environment. There is also.

Further, in the prior art in which, when two or more sheets are adsorbed and taken out from the laminated green sheets, and this is detected and the sheets are repelled from the line, there is a problem that the yield of products is poor. If it is improved manually, the labor cost will increase and it will not necessarily be economically advantageous.

The object of the present invention is to precisely determine the sheet-shaped material, which is a work piece, one by one from the uppermost layer of the sheet-shaped material, without applying a special process such as spreading a release agent. The object is to provide a sheet-like pneumatic separator that can be adsorbed to and taken out of.

Another object of the present invention is to accurately adsorb and take out one by one from the uppermost sheet-like material stacked on the work receiving pedestal, and yet to obtain one sheet-like material. The purpose of the present invention is to provide a pneumatic separator of a sheet-like material which can immediately set the next sheet-like material in a predetermined position after being taken out.

Further, another object of the present invention is to eliminate the problem that when the number of sheet-like objects laminated on the work receiving pedestal is extremely small, the sheet-like object and the work receiving pedestal are sucked together. Another object of the present invention is to provide a pneumatic separator for a sheet-like material that can be solved and prevent the sheet-like material from bending and chipping.

[0009]

In order to achieve the above object, the present invention provides a compressed air blowing nozzle for blowing compressed air from the periphery of a sheet-like object sucked and lifted by a vacuum suction pad toward the sheet-like object. Is provided.

In order to achieve the above-mentioned object, the present invention installs a separator head around the position where the work receiving pedestal is arranged, and the separator head is directed toward the sheet-like object sucked and lifted by the vacuum suction pad. , A compressed air blowing nozzle that blows compressed air from the periphery of the sheet-like object, and a work position detecting sensor that detects the uppermost sheet-like object on the work receiving pedestal are provided. It is connected to the lifting drive.

Further, in order to achieve the above object, the present invention provides the workpiece pedestal with a hole for air communication.

[0012]

In the present invention, the vacuum suction pad approaches the uppermost sheet of the sheet stacked on the work receiving pedestal, and the uppermost sheet is sucked and lifted. At this time, compressed air is blown from the compressed air blowing nozzle toward the sheet-like material that has been sucked and lifted by the vacuum suction pad, from around the sheet-like material. As a result, even if there is a sheet-like object that is in close contact with the sheet-like object adsorbed by the vacuum adsorption pad and is lifted up, the action of the compressed air that has been blown allows it to adhere to the sheet-like object adsorbed by the vacuum adsorption pad. Then, the sheet-like material lifted up can be peeled off. Therefore, the sheet-shaped materials can be accurately adsorbed and taken out one by one without performing a special process such as spreading a release agent on the sheet-shaped materials.

Further, in the present invention, the separator head is installed around the arrangement position of the work receiving base. And
The separator head is provided with a compressed air blowing nozzle and a work position detection sensor, and the work position detection sensor is connected to a lifting drive unit of the work receiving base. Therefore, when the sheet-like material stacked on the work receiving pedestal is adsorbed by the vacuum adsorption pad and lifted, the compressed air blowing nozzle moves toward the adsorbed and lifted sheet-like material from the periphery of the sheet-like material. Blow compressed air. As a result, even if there is a sheet-like object that is in close contact with the sheet-like object adsorbed by the vacuum suction pad and is lifted up, the action of compressed air causes it to be in close contact with the sheet-like object adsorbed in the vacuum suction pad. Since the formed sheet-shaped materials can be peeled off, the sheet-shaped materials can be accurately taken out one by one. As described above, when the uppermost sheet material stacked on the work receiving pedestal is taken out,
The level of the stack of sheet-like materials on the work pedestal is lowered. This is detected by the work position detection sensor, and the detection signal is transmitted to the lifting drive unit of the work receiving base. Upon receipt of this detection signal, the elevating and lowering drive section operates to raise the work receiving pedestal by a height corresponding to the thickness of one sheet. With this, each time one sheet-shaped material is taken out from the work receiving pedestal, the next sheet-shaped material can be immediately set at a predetermined position, that is, a delivery position to the vacuum suction pad, and can be placed in a standby state. It is possible to improve.

Further, in the present invention, the work receiving pedestal is provided with a hole for air communication. With this, when the number of sheet-like materials stacked on the work receiving pedestal is extremely small, it is possible to eliminate the problem that the sheet-like material and the work receiving pedestal are sucked together by the vacuum suction pad. As a result, it is possible to prevent a problem that the sheet-like material is bent or chipped due to the sheet-like material and the work receiving pedestal being attracted together.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially vertical front view showing an embodiment of the present invention, and FIG. 2 is a partially vertical front view showing an operating state of FIG.

In the embodiments shown in these figures, the work insertion case 1, the work receiving pedestal 2 and the elevating and lowering drive section 4 thereof.
, A separator head 5, and a vacuum suction pad 9.

The work insertion case 1 is detachably attached to the base plate 11.

The work receiving base 2 is provided with a hole 3 for air communication. A plurality of holes 3 are preferably arranged. Further, a predetermined number of sheet-like objects 10 are stacked on the work receiving base 2 in advance. The work receiving pedestal 2 is housed in the work inserting case 1 so as to be vertically movable.

The lifting drive unit 4 of the work receiving base 2 is
In this embodiment, the air cylinder 4a attached to the base plate 11 and the piston rod 4 fitted in the air cylinder 4a.
b, and the work receiving base 2 is detachably connected to the tip of the piston rod 4b.

The separator head 5 is formed in a ring shape similar to the work insertion case 1. The separator head 5 is provided with a compressed air passage 6, a compressed air blowing nozzle 7, and a work position detection sensor 8. The compressed air passage 6 is formed in a ring shape inside the meat of the separator head 5 and is connected to a compressed air supply source (not shown). A plurality of the compressed air blowing nozzles 7 are provided at a predetermined interval from each other, and the compressed air is blown from the periphery of the sheet-shaped material 10 toward the sheet-shaped material 10 sucked and lifted by the vacuum suction pad 9. Can be sprayed. The work position detection sensor 8 is attached to the separator head 5.
Plural pieces are assembled at a predetermined interval from each other,
It is connected so as to detect the position of the uppermost sheet-shaped material 10 of the sheet-shaped materials 10 stacked on the work-receiving base 2 and transmit the detection signal to the lifting drive unit 4 of the work-receiving base 2. The separator head 5 is installed at a predetermined position above the work insertion case 1.

In this embodiment, the two vacuum suction pads 9 form one set. Each vacuum suction pad 9 is attached to the elevating frame 12. Each vacuum suction pad 9 is connected to a vacuum pump (not shown).

The elevating frame 12 includes a guide member 13
It is attached to the transverse frame 14 via. The transverse frame 14 is mounted on a fixed frame 16 via a guide member 15.

The pneumatic separator according to the above construction is operated and operates as follows.

First, in the initial state, a predetermined number of sheets 10 are stacked on the work receiving pedestal 2, and the work receiving pedestal 2 and the stacked body of the sheets 10 are accommodated in the work insertion case 1. Is set on the base plate 11 and the work receiving pedestal 2 is connected to the elevating and lowering drive unit 4. By the elevating and lowering drive unit 4, the uppermost sheet 10 on the work pedestal 2 is moved to a predetermined height. Set to the position. Further, the vacuum suction pad 9 attached to the elevating frame 12 is located above the stacked body of the sheet-like objects 10 stacked on the work receiving base 2. Further, compressed air is blown toward the inside of the separator head 5 through the compressed air passage 6 and each compressed air blowing nozzle 7 provided in the separator head 5.

From the initial state, each vacuum suction pad 9 is lowered to a predetermined position in the separator head 5 via the elevating frame 12. As a result, as shown in FIG.
Each vacuum suction pad 9 sucks the uppermost sheet-like material 10 on the work receiving base 2.

The sheet-like material 1 is formed by the vacuum suction pad 9.
When 0 is adsorbed, the elevating frame 12 is raised.
As a result, the sheet-shaped material 10 adsorbed on the vacuum adsorption pad 9 is lifted.

As described above, while the sheet-like material 10 is being lifted by the vacuum suction pad 9, a plurality of compressed air blowing nozzles 7 provided in the separator head 5 are used to remove the sheet-like material 10 from the periphery thereof. Compressed air is blown. Here, as shown in FIG. 2, when there is a sheet-like material 10a that is in close contact with the sheet-like material 10 adsorbed by the vacuum suction pad 9 and is lifted, the sheet-like material 10a is the compressed air blowing nozzle 7 It is peeled off by the compressed air blown from, dropped as shown by the phantom line in FIG. 2, and returned to the sheet-like material 10 laminated on the work receiving base 2. In this way, even if two or more sheet-like objects are lifted, the second and subsequent sheet-like objects 10a that are lifted in close contact with the adsorbed sheet-like material 10 are separated by compressed air. Since the sheet 10 is dropped, it can be adsorbed and taken out one by one accurately without performing a special process such as spreading a release agent on the sheet 10.

As described above, one sheet 10 is sucked by the vacuum suction pad 9 and lifted to a predetermined position,
The transverse frame 14 is moved rearward, and the sheet-shaped article 1 is moved through the elevating frame 12 and the vacuum suction pad 9.
0 is transferred to the delivery position to the next process such as the alignment process.
Then, the elevating frame 12 is lowered at this position, then the suction action of the vacuum suction pad 9 is temporarily stopped, the sheet-like material 10 is released, and the sheet is delivered to the next step.

Then, the elevating frame 12 is raised, the transverse frame 14 is moved forward, and the empty vacuum suction pad 9 is returned to the initial position.

By the way, when the uppermost sheet 10 among the sheets 10 stacked on the work receiving pedestal 2 is adsorbed and lifted, the level of the uppermost sheet 10 of the stack is raised. descend. This is detected by the work position detection sensor 8 provided on the separator head 5,
The detection signal is transmitted to the lifting drive unit 4 of the work receiving base 2. Therefore, the elevating / lowering drive unit 4 operates based on the detection signal, and raises the work receiving base 2 by a height corresponding to the thickness of one sheet-like object 10. As a result, after taking out one sheet-shaped material 10 from the work receiving pedestal 2, the next sheet-shaped material 10 can be immediately set at the delivery position to the vacuum suction pad 9 and made to stand by.

By repeating the above-mentioned operation, it becomes possible to accurately adsorb the sheet-like objects 10 stacked on the work receiving base 2 one by one, take them out and pass them to the next step.

In this embodiment, the work receiving base 2
A hole 3 for air communication is provided at a position corresponding to the vacuum suction pad 9 in FIG. As a result, the work receiving base 2
Even when the number of the sheet-like objects 10 laminated on the top becomes very small, for example, 1 or 2, the sheet-like object 10 and the work receiving pedestal 2 are sucked together by the vacuum suction pad 9. It can be resolved. As a result, it is possible to prevent the occurrence of troubles such as bending and chipping of the sheet-shaped material 10 due to the sheet-shaped material 10 and the work receiving base 2 being attracted together.

When all the sheet-like objects 10 stacked on the work receiving pedestal 2 are taken out and transferred, the empty work insertion case 1 and the work receiving pedestal 2 are removed, and a predetermined number of the sheet-like objects 10 are stacked in advance. Work pedestal 2
And replace it with the work insertion case 1 that contains it.
Set it in use.

In each of the above embodiments, the transverse frame 1
Instead of 4, the revolving frame may be adopted, the elevating frame 12 may be attached thereto, and the vacuum suction pad 9 may be attached to the elevating frame 12.

Further, in the present invention, as the sheet material 10, not only the green sheet but also any sheet material capable of vacuum adsorption can be handled.

Next, FIG. 3 is a plan view showing another embodiment of the present invention, and FIG. 4 is a front view showing a part of FIG. 3 in section.

In the embodiment shown in FIGS. 3 and 4, the work receiving pedestals 2 are accommodated in the single work insertion case 1 in the horizontal plane in the vertical direction in two rows and in the horizontal direction in four rows, for a total of eight units. Has been done.

A predetermined number of sheet-like objects 10 are laminated on each of the eight work receiving pedestals 2. Further, the eight workpiece receiving pedestals 2 are attached to the joint plate 17. The joint plate 17 is connected to the piston rod 4b of the single lifting drive unit.

Eight sets of two vacuum suction pads 9 are provided so as to correspond to the eight work receiving pedestals 2.

Therefore, according to this embodiment, it is possible to adsorb and take out the sheet-shaped material 10 by 8 strokes in one stroke and send it to the next step.

Other configurations and operations of the embodiment shown in FIGS. 3 and 4 are the same as those of the embodiment shown in FIGS.

[0043]

As described above, according to the first aspect of the present invention.
In the described invention, through the compressed air blowing nozzle, the compressed air is blown toward the sheet-like material that is adsorbed and lifted by the vacuum adsorption pad, and by this compressed air,
Since the lifted sheet-like material is closely attached to the sheet-like material sucked by the vacuum suction pad, the sheet-like material is not subjected to any special processing such as spreading a release agent on the work-piece. There is an effect that the uppermost sheet-shaped material among the sheet-shaped materials stacked on the pedestal can be accurately adsorbed and taken out one by one. Therefore, a device for spraying the release agent and a device for removing the release agent are not required, so that the equipment cost can be significantly reduced, the deterioration of the work environment due to the release agent can be eliminated, and two or more sheets are adhered to each other. There is also a secondary effect that it is possible to eliminate the deterioration of the yield of the product due to the sheet-like material taken out in the state being repelled.

According to the second aspect of the present invention,
A separator head is installed around the arrangement position of the work pedestal, and a plurality of compressed air blowing nozzles and a work position detection sensor are provided in this separator head, and the work position detection sensor is used as an elevating / lowering unit of the work pedestal. Connected, through the compressed air blowing nozzle, blows compressed air toward the sheet-like material that has been adsorbed and lifted by the vacuum adsorption pad, by this compressed air,
Since the sheet-like material that has been lifted up is closely attached to the sheet-like material that is adsorbed on the vacuum suction pad,
Among the sheet-like materials stacked on the work receiving pedestal, the uppermost sheet-like material can be accurately adsorbed and taken out one by one, and the work position detecting sensor is used to stack the sheets on the work receiving pedestal. Detect the level of the laminated body after taking out the uppermost sheet of the sheet,
Based on the detection signal, the lifting drive unit raises the work receiving pedestal by a height corresponding to one sheet-shaped object. Therefore, each time one sheet-shaped object is taken out from the work receiving pedestal, Since the next sheet-like material can be immediately set at the delivery position to the vacuum suction pad, there is an effect that the work efficiency can be improved.

Further, in the invention according to claim 3 of the present invention, since the work receiving pedestal is provided with the hole for air communication, the number of sheet-like objects laminated on the work receiving pedestal is extremely small. Sometimes, as a result of being able to eliminate the problem that the sheet-like material and the work receiving pedestal are sucked together by the vacuum suction pad, the sheet resulting from the sheet-like material and the work receiving pedestal being sucked together This has an effect of preventing a trouble such as bending or chipping of the object.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a partially longitudinal front view of a main part.

FIG. 2 is a partially longitudinal front view showing the operating state of FIG.

FIG. 3 is a plan view showing the outline of another embodiment of the present invention.

FIG. 4 is a front view showing a part of FIG. 3 as a cross section.

[Explanation of symbols]

 1 Work insertion case 2 Work receiving pedestal 3 Hole for air communication 4 Lifting drive unit 5 Separator head 6 Compressed air passage 7 Compressed air blowing nozzle 8 Work position detection sensor 9 Vacuum suction pad 10 Sheet material

Claims (3)

[Claims] 1. A device for adsorbing sheet-like materials laminated on a work receiving pedestal one by one with a vacuum suction pad, taking them out from the work receiving pedestal, and transferring them, is sucked and lifted by the vacuum suction pad. A pneumatic separator for a sheet-like material, comprising a compressed air blowing nozzle for blowing compressed air toward the sheet-like material from the periphery of the sheet-like material. 2. In a device for adsorbing sheet-like materials laminated on a work receiving pedestal one by one by a vacuum suction pad, taking them out from the work receiving pedestal, and transferring them, around the arrangement position of the work receiving pedestal. A separator head is installed, and a compressed air blowing nozzle that blows compressed air from around the sheet-like object toward the sheet-like object that is sucked up by the vacuum suction pad and lifted up to the top of the work-receiving pedestal. A pneumatic separator for a sheet-like object, comprising: a work-position detecting sensor for detecting an upper-layer sheet-like object; and connecting the work position-detecting sensor to an elevating / lowering drive part of a work receiving pedestal. 3. The pneumatic separator according to claim 1, wherein the workpiece receiving pedestal is provided with a hole for air communication.