JPH06115699A - Device for separating and transferring piled non-gas-permeable sheet - Google Patents

Abstract

PURPOSE:To suck piled soft non-gas-permeable sheets one by one from the upper, and picking up one sheet so as to prevent the accompanying of the next sheet, and transferring it to a supplying position. CONSTITUTION:A suction pad 4 projected at a small dimension and a stem 13 projected at a large dimension are arranged on the flat surface of a suction board 8, and a suction hole h2 of the suction pad 14 and a suction hole h1 of the stem 13 are communicated with a sealed ventilation passage 81, and an air tube 12 connected to a vacuum generator is communicated with the ventilation passage 81 to form a suction body X, and this suction body X is moved upward, downward, forward and backward between a sheet placing base and a sheet supplying position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention adsorbs a flexible, non-breathable sheet or film having a large number of stacked layers one by one from the upper side, picks it up, and then transfers it to the next position. It is a device for doing so and is effectively used in the field of packaging of goods. The "non-breathable sheet" referred to here
Is, for example, paper that can effectively act on the air suction force,
It is also meant to include non-woven fabric and the like.

[0002]

2. Description of the Related Art A technique for adsorbing aluminum plates, which are placed in a laminated state, one by one from the upper side and taking them out and transferring them to the next place is already known from Japanese Patent Laid-Open No. 58-6830. In the prior art, as shown in FIGS. 5 and 6, as an adsorption transfer means, an arm 103, which hangs two adsorbers 104 downward at a distance, is arranged so as to move vertically and horizontally.

The aluminum plate material 101 is used for the carriage 1.
02 is placed in the plate material take-out position in a state of being stacked and placed on 02, and the arm 103 moves in the directions of arrows A, B, C, D, E, and F to move the plate material 101 in the mounting position to the next processing position T. Move to the top. N is a nozzle that blows out jet air J,
Reference numeral 105 denotes a contact rod for giving a warp to the plate material, which is fixed to the frame 106.

Therefore, the separation and transfer action by the transfer means is that the arm 103 descends in the direction of the arrow A, and the adsorber 10 is moved.
4 vacuum-adsorbs the uppermost aluminum plate 101, and then raises the arrow B, and as shown in FIG. 6, the contact rod 105 presses the rise of the aluminum plate 101 between the two suction cups.
01 is in a warped state. When the aluminum plate 101 is a smooth surface, when the uppermost one plate is lifted, the next plate material may be simultaneously lifted together in an attached state.

However, even if two aluminum plates 101 are lifted as shown in FIG. 6, the attached plate easily separates from the uppermost plate when the warp is given, and the jet air flow J from the nozzle N is deviated. Is applied, the adhering plate 101 drops as indicated by an arrow H, and by the action of the arrows C → D of the arm 103 and the suction force released by the adsorber 104, only the uppermost aluminum plate material 101 is mounted on the carriage 102. It is possible to separate and transfer from one position to the next processing position T.

[0006]

In the above-mentioned prior art, even if the plate material of the next layer adheres to the plate material of the uppermost layer and is lifted up, it is possible to separate and drop the sheets one by one in order to separate and drop them. Although possible, it is necessary for each plate to have flexural elasticity in order to separate the adhered plate by the warp imparted by the presser bar, and to prevent each plate from being blown by the action of the jet airflow J. Some weight is required.

Therefore, the above-described conventional technique cannot be applied to a thin film sheet material such as a plastic film or a cellophane film which has a small bending elasticity and is extremely light. The present invention provides a device which can be applied to a sheet such as a plastic film material having a small bending elasticity and a light weight.

[0008]

For example, as shown in FIG. 1, a suction pad 14 having a small projecting size and a stem 13 having a large projecting size are arranged on a flat lower surface of a suction plate 8 for suctioning. The suction hole h _{2 of the} pad 14 and the suction hole h _{1 of the} stem 13 are connected to one sealed ventilation passage 81, and the air tube 12 connected to the vacuum generator is connected to the ventilation passage 81 to form the adsorbent X. The suction member X can be vertically moved and moved back and forth between the sheet mounting table 63 and the sheet supply position.

Therefore, when the suction member X is brought into contact with the laminated sheet So and a vacuum pressure is applied to the ventilation passage 81, the suction pad 14 sucks up the uppermost sheet S by a difference in height with respect to the stem 13. At the working point of 14, a gap Z is generated between the uppermost sheet and the next layer sheet, the adhesion of the next layer sheet is broken, and the advancing of the adsorbent X under the action of vacuum pressure causes the uppermost sheet S1. Only one sheet can be reliably lifted, and even a flexible sheet can be reliably taken out and transferred to the next placement place.

A plurality of stems 13 are arranged on substantially the same circumference, and suction pads 14 are arranged between the stems 13 and on the substantially same circumference outside the circumference of the stems. Therefore, when the stem 13 is in contact with the uppermost layer of the laminated sheet So, the turning action by the suction force of the suction pad 14 acts from the outer peripheral portion, and the peeling action of the uppermost sheet from the next layer sheet is reliable and quick. Can be achieved.

Further, since the height of the stacking sheet mounting table 63 is controlled so that the sheet take-out position (the uppermost sheet position) is always constant, the valve switching of the air tube 12 for sucking the sheet is performed by the suction member. It can be easily controlled by program control at the stroke end of the suction cylinder that descends X.

[0012]

EXAMPLE The present invention is used as a side packing attached to the side surface of an adhesive tape, having an outer diameter of 60 to 100 mm and a central hole diameter of 35.
It was applied to a process for taking out from a laminate of a polyvinyl chloride film having a thickness of 30 mm and a thickness of 30 μm.

Structure: As shown in FIGS. 1 to 3, the adsorbent X
Is composed of a disk lid 7 and a suction disk 8 having the same planar shape, and the lid 7 has a circular hole H ₁ at the center, a pair of screw holes 74 on the upper surface of one side, and another side. Is provided with a communication hole 71 that communicates with the upper and lower sides, and a screw hole 73 is also provided on the lower surface.

Further, the suction plate 8 has a circular hole H ₂ at the center thereof.
A circular air passage 81 is provided in the upper part, and three stem through holes 82 are provided at 120 ° intervals from the air passage 81, and three suction pad passages are provided at three intermediate positions between the stem through holes. The holes 82 are opened downward, and the lower ends of the through holes serve as the stem 13 and the suction pad 14 mounting portion, respectively. Further, a screw hole 83 for a screw bolt corresponding to the screw hole 73 of the lid 7 is penetrated.

The outer diameter D of the lid 7 and the suction cup 8 is 6
It is a disk of 3 mm, the holes H ₁ and H ₂ have the same diameter, the width W of the ventilation passage 81 is 3 to 10 mm, and the diameter d passing through the center of the bottom of the U-shaped cross section is 50 mm. Each group of through holes 82 is drilled on the top.

The assembling of the adsorbent X is performed by the lower surface f of the lid 7.₁Suck
The upper surface f of the landing plate 8₂And stick it to the bottom of the suction cup 8
Both are tightly screwed together with the gut 9 and the suction hole h₁Has a sitting height l₁Of 3
Through the corresponding metal stems 13 at 120 ° intervals
Two screw holes are attached to the mounting portion of No. 2 and three through holes 82 in the middle thereof are provided.
Suction holes h on each mounting part of₂Has a sitting height l₂Of synthetic go
The suction pad 14 made of aluminum is press-fitted and fixed, and the communication hole 71 of the lid 7
The base 10 was screwed onto the upper part of the. And of the stem 13
Projection length l₁And the protrusion length l of the suction pad 14₂Difference (l₁
-L₂) Is 1.0 to 3.0 mm, h₁Pore size of 2.0
~ 4.0 mm, h ₂The outer diameter was 0.5 to 2.0 mm.

Then, the adsorbent X is screwed and fixed to the arm 6 of the separation and transfer device through the screw hole 74 on the upper surface of the lid 7, and the tip of the air tube 12 is connected to the mouthpiece 10, the base end of which is illustrated. Switchable connection to non-vacuum and compressed air sources. The arm 6 is fixed to the lower end of the cylinder rod 5 protruding and retracting from the suction cylinder 4 of the apparatus, and the suction cylinder 4 is fixed to the tip of the cylinder rod 3 protruding and retracting from the transfer cylinder 2 fixed to the mount 1. .

The air control in the sealed air passage 81 of the suction plate 8, that is, the control of suction and spraying of the suction holes h ₁ and h ₂ of the stem 13 and the suction pad 14 is performed by stacking on the mounting table 63. Acting the suction cylinder 4 above the sheet S ₀ ,
At the stroke end (lowermost position) of the cylinder rod 5, the stem 13 of the adsorbent X presses the uppermost surface of the laminated sheet S ₀ , and at the same time, the vacuum generator is operated to suck into the suction holes h ₁ and h ₂ . The force is applied and the suction cylinder 4 is actuated in the forward position so that the center holes H ₁ and H ₂ of the suction body X are fitted to the tip of the round bar 60 at the stroke end of the cylinder rod 5, and at the same time. The program was set to open the valve of the vacuum generator to switch to compressed air and blow the sheet towards the pedestal 61. Further, the laminated sheet mounting base 63 is fitted to the screw shaft 62 so that the uppermost surface of the laminated sheet S ₀ is always constant, and the motor M for driving the screw shaft 62 is controlled by the sensor 64.

Operation: As is clear from FIG. 4, when the adsorbent X is located above the laminated sheet S ₀ , the adsorption cylinder 4
When the cylinder rod 5 moves downward as indicated by arrow A ₁ and reaches the stroke end, each stem 13 presses the uppermost surface of the laminated sheet S ₀ , and at the same time, the vacuum generator acts to move the inside of the air passage 81. Is reduced to 1/10 to 1/20 atmospheric pressure, and the suction hole h _{1 of the} stem 13 and the suction hole h of the suction pad 14
_The suction force is generated in ₂ at once.

Since the protrusion length l ₂ of the suction pad 14 is smaller than the protrusion length l ₁ of the stem 13 by 1.5 mm,
With respect to the sheet S pressed by each stem 13, the suction holes h ₂ of each suction pad 14 partially suck up the sheet, and as if turning the pages of the book, as shown in FIG. At the start position, a gap Z into which air has flown is generated between the uppermost sheet S and the next layer sheet So, and the contact between both sheets is broken.

Therefore, when the arrow A ₂ is raised by the subsequent action of the suction cylinder 4 of the suction body X while the suction force is exerted on all the suction holes h ₁ and h _{2 of} the stem 13 and the suction pad 14, Air freely flows from the outside between the upper layer sheet and the next layer sheet, so that no negative pressure is generated between both sheets, and the accompanying rise of the next layer sheet So can be prevented.

At the time when the adsorbent X has risen until it has adsorbed the sheet S, the adsorbing cylinder 4 is moved forward by the action of the transfer cylinder 2 to the fixed position by the arrow A ₃ , and then the adsorbing cylinder 4 acts. Rod 5 is arrow A ₄
Of the adsorbent X and the central holes H ₁ and H _{2 of the} adsorbent X are fitted to the upper end of the round bar 60 on the pedestal 61, that is, at the stroke end (the lowest position) of the cylinder rod 5, Simultaneously with the stop, the valve of the vacuum generator is opened to switch to compressed air, and the sheet S of the adsorbent X is blown to the pedestal side by the flow of air blown out from the suction holes h ₁ and h ₂ .

Then, when the cylinder rod 5 of the suction cylinder 4 acts and the cylinder rod 5 moves upward as indicated by arrow A ₅ , the suction hole h is reached.
Stop the air blow from ₁ and h ₂ and transfer cylinder 2
By this action, the adsorbent X is returned to the upper position of the laminated sheet S ₀ by the retreat of the arrow A ₆ and one step is completed, and the separation and transfer of the laminated sheet are performed by repeating this step.

In this example, the sensor 64 detects a change in the position of the uppermost surface of the laminated sheet S ₀ , controls and rotates the motor M and the screw shaft 62, and raises the mounting table 63 to raise the laminated sheet S ₀ . Always keep the top surface constant. Therefore, the control inside the air passage 81 can be set at the stroke end of the cylinder rod 5. The vertical movement distance of the adsorbent X is 30.
Although it is mm, even if one up and down movement of the adsorbent X was operated at a speed of 0.2 seconds, it was possible to surely achieve the separation of each sheet from the laminated sheet.

It is impossible to separate and pick up the sheets one by one from the laminated sheet, which is the object of the present example, because it is completely impossible with the suction means provided with the suction pad group having no height difference, and only manual work is required. It was Since the stem 13 also has a function of defining the operating position of the vacuum generator, the stem 13 is made of metal so that it is less worn and can be used for a long period of time. Further, since the suction pad 14 sucks and captures the sheet portion jumped up by the suction force, since it is made of an elastic material, the soft sheet can be suitably captured.

[0026]

[Others] The number of the stems 13 and the suction pads 14 of the adsorbent, the arrangement form, and the dimensions of the respective suction holes h ₁ and h ₂ ,
The difference in the protruding lengths l ₁ and l ₂ between the stem 13 and the suction pad 14 is a matter that is experimentally found depending on the flexibility (drapeability) of the target processing sheet and the size and shape.
If the suction pad 14 is arranged near the outer edge of the laminated sheet,
It has been found to be more effective with any flexible sheet. That is, if the suction pad is arranged on the outer circumference of the circumference of the stem 13, the sheet turning action by sucking up the suction pad 14 while the stem 13 presses the sheet can be more effectively achieved. I understood it.

Although the present invention is applied to the processing of a circular sheet having a hole in the center in the embodiment, the present invention can be applied to a sheet having no hole in the center and a non-circular sheet even if the suction plate 8 is flat. Applicable if the shape is selected appropriately.

[0028]

As for the suction of the sheet, first, the stem 13 abuts and presses, and in that state, the suction pad 14 performs suction suction as if turning the pages of the book, so that the suction sheet of the uppermost layer and the sheet of the lower layer. At the same time that a gap Z is formed between the two sheets, air flows into the gap Z from the outside, the contact between the two sheets is broken, and the lower sheet does not accompany the lifting of the suction sheet. Therefore, it is possible to surely and swiftly pick up one by one even from a laminated body of flexible sheets.

Further, since the suction body X moves up and down and back and forth between the sheet mounting table 63 and the sheet feeding position, the suction force and the discharge force of the air to the stem and the suction pad are applied and released by moving the suction body up and down. The program can be set as a sequence control together with the motion and back-and-forth motion, and high-speed operation can be reasonably performed in combination with the function of the adsorbent.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an adsorbent of the present invention.

FIG. 2 is an exploded view of the adsorbent of the present invention, in which (A) is a perspective view of a lid and (B) is a perspective view of an adsorption plate.

FIG. 3 is an explanatory diagram showing the arrangement of stems and suction pads of the suction plate in the embodiment of the present invention.

FIG. 4 is an overall side view of the device of the present invention.

FIG. 5 is a side view of a conventional example.

FIG. 6 is a diagram for explaining the operation of the conventional example.

[Explanation of symbols]

1 ... Mounting base 2 ... Transfer cylinder 3,5 ... Cylinder rod 4 ... Suction cylinder 6 ... Arm 7 ... Lid 8 ... Suction plate 9 ... Screw bolt 10 ... Base 12 ... Air tube 13 ... Stem 14 ... Suction pad 60 ... Round bar 61 ... cradle 62 ... screw shaft 63 ... mounting table 71 ... contact hole 73, 74 ... screw hole 81 ... vent channel 82 ... hole 83 ... screw hole h _1, h ₂ ...吸孔

Front Page Continuation (72) Inventor Iku Miyai 1-24-2 Hiromachi, Shinagawa-ku, Tokyo Stock Association Inside the Teraoka Factory (72) Inventor Riki Hasegawa 1-4-22 Hiromachi, Shinagawa-ku, Tokyo Stock Association Inside the Shrines and Temples Factory

Claims (3)

[Claims] 1. A suction pad (14) having a small protruding size and a stem (1) having a large protruding size are provided on a flat lower surface of the suction plate (8).
3) is provided, and the suction hole (h ₂ ) of the suction pad (14) and the suction hole (h ₁ ) of the stem (13) are sealed in the air passage (81).
Air tube connected to the vacuum generator (1
Separation and transfer device for laminated non-air-permeable sheets, wherein the adsorbent (X) communicating with (2) in the ventilation path (81) is moved up and down and back and forth between the sheet placing table (63) and the sheet feeding position. . 2. A plurality of stems (13) are arranged substantially on the same circumference, and suction pads (14) are arranged between the respective stems and on the substantially same circumference outside the circumference of the stem arrangement. The apparatus according to claim 1, which is provided. 3. The sheet mounting table (6) so that the upper end position of the laminated non-air-permeable sheet to be separated and transferred is constant.
3. The device according to claim 1, wherein the level of 3) is controlled.