JPH10309686A - Transferring article holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably hold a transferring article by decreasing load to be applied to the upper surface part of the transferring article when the transferring article is adsorbed. SOLUTION: A pair of clamp bodies 11a, 11b capable of pinching a transferring article A are provided on a base body 1. Adsorptive means 21 for adsorbing parts near the edges of the upper surface of the transferring article A are integrally provided on the clamp bodies 11a, 11b. The adsorptive means 21 adsorb the parts near the edges on the upper surface of the transferring article A, namely the edges near the side surfaces of the transferring article A to be pinched by the clamp bodies 11a, 11b regardless of the size of the transferring article A. Therefore, load to be applied to the upper surface part of the transferring article A can be decreased in comparison with a case the upper surface central part of the transferring article A is adsorbed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transferred article holding device used for, for example, a loading device and an unloading device.

[0002]

2. Description of the Related Art Conventionally, as this type of transferred article holding device, for example, as described in Japanese Patent Application Laid-Open No. 2-135192, a freely movable transfer arm such as a loading device or an unloading device is used. Having a base body attached to the tip of the
A pair of clamp plates is provided on the lower surface of the base body so as to be able to hold both sides of the transferred article, and a hook lever is provided on the lower surface of the transferred article so as to be engageable. 2. Description of the Related Art There is known a structure in which an adsorbent that can be adsorbed is provided on an upper surface so as to be able to move up and down.

[0003] Both sides of the transferred article are sandwiched by a pair of clamp plates, the lower surface of the transferred article is supported by a hook lever, and the upper surface of the transferred article is sucked by an adsorbent.
The transfer article is moved by the movement of the transfer arm and transferred to a predetermined transfer location.

[0004] The adsorber is disposed near the center of the base with respect to the base, and adsorbs near the center of the transferred article regardless of the width of the transferred article. .

[0005]

However, in the conventional transfer article holding device, the adsorbent is disposed near the center of the base body with respect to the base body, and the adsorbent is disposed in the width direction of the transfer article. Irrespective of the size, in order to adsorb the vicinity of the center of the transferred article, for example, the transferred article is a cardboard box, and the opening and closing portion (flap section) is aligned at the center of the upper surface of the cardboard box and the joint is made. In this case, the tip of the opening / closing section is adsorbed by the adsorbent and the load of the transferred article is received, and a large load is applied to the opening / closing section and the adhesive tape, and the adhesive tape may come off. There is a risk of tearing. In particular, when the width of the cardboard box is large and the opening / closing portion is long, the load on the opening / closing portion and the adhesive tape is greater, and the adhesive tape is easily peeled or broken.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and a transfer article holding apparatus capable of reducing a load applied to a suction surface portion of a transfer article when sucking the transfer article and securely holding the transfer article. The purpose is to provide.

[0007]

According to a first aspect of the present invention, there is provided a transfer article holding apparatus, comprising: a base body; and a pair of clamps provided on the base body so as to be openable and closable so as to be able to hold the transfer article. And a suction means integrally provided on at least one of the clamp bodies and capable of sucking the vicinity of the edge of the surface of the transfer article facing the base body.

[0008] Since at least one of a pair of clamp bodies which can be opened and closed and sandwiches the transferred article is provided integrally with at least one of the pair of clamp bodies, this sucking means is provided regardless of the size of the transferred article. In the vicinity of the edge of the surface facing the base body, that is, the edge near the holding surface of the transferred article held by the clamp body is sucked. Therefore, the load on the suction surface portion of the transfer article is reduced as compared with the case where the suction portion at the center of the suction surface of the transfer article is suctioned.

According to a second aspect of the present invention, there is provided a transfer article holding apparatus, wherein the suction means has an adsorbent and an advancing / retreating means for moving the adsorbent back and forth. In this case, the adsorbent is pressed against the transfer article held by the clamp and adsorbed.

According to a third aspect of the present invention, there is provided the transferred article holding device according to the first or second aspect, wherein the clamp body has a clamping surface capable of adsorbing a surface of the transferred article facing the clamp body. It has a suction means, and holds the transferred article more reliably.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a transferred article holding device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of the transferred article holding apparatus, FIG. 2 is a plan view of the transferred article holding apparatus, FIG. 3 is a left side view of the transferred article holding apparatus, and FIG. 4 is a right side of the transferred article holding apparatus. FIG.

In FIG. 1, reference numeral 1 denotes a base body. The base body 1 has a pair of frames 2 and a connecting frame 3 for connecting both ends of the frames 2, and is formed horizontally long in the left-right direction. At the center of the upper surface of the base 1, a support plate 5 having a support shaft 4 is attached. And the base body 1
Is mounted via the support shaft 4 to the tip of a freely movable transfer arm (not shown) such as a loading device or an unloading device.

A pair of guide rails 6 are respectively attached along the lower surfaces of the pair of frames 2, and a pair of moving frames 7 disposed below the base body 1 with respect to the pair of guide rails 6. It is slidably mounted.

Each of the moving frames 7 is formed in a substantially L-shaped cross section having an upper surface portion 8 and a side surface portion 9 and has a base body 1.
Are formed to have a lateral width longer than the width of the pair of frames 2. A pair of slide portions 10 slidably engaged with the respective guide rails 6 are attached to the upper surface of the upper surface portion 8.

Further, the side surface 9 of each of the pair of moving frames 7 has
A pair of clamp bodies 11a and 11b are respectively attached.

One clamp body 11a has a clamp plate 12a attached to the side surface 9 of the moving frame 7, and a plurality of clamp plates (8 in this embodiment) are provided below the clamp surface 13a on the inner surface side of the clamp plate 12a. ) Are formed, and an adsorbent 15 as a clamping surface adsorbing means is arranged in each of the openings 14. Each adsorber 15 has an adsorbing pad 16 disposed so as to protrude from the opening 14, and is attached to a mounting plate 17 disposed on the outer surface side of the clamp plate 12a.

The other clamp body 11b has a pair of clamp plates 12b formed in a vertically long rectangular plate shape, and the lower end of the clamp surface 13b on the inner surface side of these clamp plates 12b has one clamp body 11a. It is slightly inclined toward the side.

On the upper surface 8 of each of the pair of moving frames 7,
Suction means 21 are respectively attached. Each of the suction means 21 has a pair of air cylinders 22 as advancing and retreating means attached to both ends of the lower surface of the upper surface portion 8. A lifting plate 24 is connected to a lower end of a rod 23 of the air cylinder 22. A pair of adsorbents 25 are attached to 24. Each suction body 25 has a suction pad 26 directed downward, and is attached via a mounting means 27 so as to be slidable, that is, position-adjustable, along the elevating plate 24.

Further, timing pulleys 31 are rotatably supported on the connection frame 3 of the base body 1, respectively, and a timing belt 32 is engaged with these timing pulleys 31 and stretched. A connecting member 33 attached to the upper surface 8 of each moving frame 7 is connected to the timing belt 32. Air cylinders 34 as clamp body driving means are attached to the inner surface of each frame 2 via support pieces 35, respectively, and the tips of the rods 36 of the air cylinders 34 are connected to one moving frame 7 via a connecting member 37. Are linked.

The operation of the air cylinder 34 causes one of the moving frames 7 to move along the guide rails 6 of the base 1, and the other moving frame 7 moves to the guide rails of the base 1 via the timing belt 32. 6, the pair of moving frames 7 are opened and closed with each other in synchronization.

A negative pressure is introduced to each of the adsorbers 15 and 25 under the control of a suction control device (not shown), and a compressed gas or negative pressure is supplied to each of the air cylinders 22 and 34 under the control of an air cylinder control device (not shown). Pressure is guided.

Next, the operation of the present embodiment will be described.

When the transfer article A is to be transferred, the pair of clamp bodies 11a and 11b are moved away from each other, and the pair of clamp bodies 11a and 11b are moved by moving a transfer arm such as a loading device or an unloading device. After advancing 11a and 11b from above the transferred article A into both side areas of the transferred article A, a pair of clamp bodies 11a and 11b are inserted.
a and 11b are moved closer to each other, and a pair of clamp bodies 11a and 11b are moved.
The transferred article A is held between the clamp plates 12a and 12b.

The side surface of the transferred article A is suctioned by a plurality of suction members 15 located on the clamp surface 13a of one clamp body 11a. In addition, the adsorbents 25 are lowered by the operation of the air cylinders 22 of both the moving frames 7 to be joined to the upper surface of the transferred article A, and the upper surface of the transferred article A is sucked by the adsorbent 25.

After holding the transfer article A in this way, the transfer article A is moved to the transfer location by moving the transfer arm.

At this time, the transferred article A is transferred to a pair of clamp bodies.
Since it is sandwiched between 11a and 11b and adsorbed by each of the adsorbents 15 and 25, the transferred article A is reliably held, and the displacement and drop of the transferred article A due to the movement of the transfer arm can be prevented.

Moreover, regardless of the size of the transferred article A, the edge portion near the upper surface of the transferred article A by the adsorbent 25, that is, the edge near the side face of the transferred article A sandwiched between the clamp bodies 11a and 11b. Can be absorbed, and the load on the upper surface portion of the transferred article A can be reduced as compared with the case where the central part of the upper surface of the transferred article A is sucked, and the transferred article A can be securely held.

For example, the transferred article A is a cardboard box, and an opening / closing section (flap section) is provided at the center of the upper surface of the cardboard box.
Even if the joints are fastened together and the joints are stopped with adhesive tape, the base side of the opening / closing section (side close to the side of the cardboard box) is adsorbed by the adsorbent 25,
As in the related art, by adsorbing the front end side of the opening / closing section, a large load is not applied to the opening / closing section and the adhesive tape due to the load of the cardboard box, and the adhesive tape can be prevented from being peeled or broken. In particular, even when the width of the cardboard box is large and the opening / closing part is long, the load on the opening / closing part and the adhesive tape can be reduced as compared with the conventional case.

Then, after the transfer article A is moved to the transfer place, the suction of the adsorbent 25 is released, and the adsorbent 25 is raised by the operation of the air cylinder 22 to be separated from the upper surface of the transfer article A. . The suction of the suction body 15 is released, and the pair of clamp bodies 11 are released.
a and 11b are moved away from each other, and the holding of the transferred article A is released.

As described above, since at least one of the pair of clamp bodies 11a and 11b which can be opened and closed to sandwich the transferred article A is integrally provided with the suction means 21, the size of the transferred article A can be reduced. Regardless, the suction means 21 can suck the vicinity of the edge of the upper surface of the transfer article A facing the base body 1, that is, the edge near the side face of the transfer article A sandwiched between the clamp bodies 11a and 11b. The load on the upper surface portion of the transfer article A can be reduced, and the transfer article A can be securely held, as compared with the case where the upper surface center portion of the transfer article A is sucked.

Since the adsorbing means 21 has the adsorbing body 25 and the air cylinder 22 for moving the adsorbing body 25 forward and backward, the adsorbing body 25 is pressed against the transfer article A held between the clamp bodies 11a and 11b. Can be adsorbed.

Since the clamp bodies 11a and 11b have the adsorbers 15 that can adsorb the surfaces of the transferred articles A facing the clamp bodies 11a and 11b, the transferred articles A can be held more reliably.

[0034]

According to the transferred article holding device of the first aspect, at least one of the pair of clamp bodies which can be opened and closed and clamps the transferred article is provided integrally with the suction means. Irrespective of the size of the loaded article, the suction means can suck the vicinity of the edge of the face of the transferred article facing the base body, that is, the edge near the holding surface of the transferred article held by the clamp body, and As compared with the case where the central portion of the suction surface is sucked, the load on the suction surface portion of the transferred article can be reduced, and the transferred article can be securely held.

According to the transferred article holding device of the second aspect, in addition to the effect of the transferred article holding device of the first aspect,
Since the suction means has the adsorbent and the reciprocating means for moving the adsorbent forward and backward, the adsorbent can be pressed against the transfer article sandwiched by the clamps and adsorbed.

According to the transferred article holding device of the third aspect, in addition to the effect of the transferred article holding device of the first or second aspect, the clamp body has a surface facing the clamp body of the transferred article. Because of the holding surface suction means that enables suction, the transferred article can be held more reliably.

[Brief description of the drawings]

FIG. 1 is a front view of a transferred article holding device according to an embodiment of the present invention.

FIG. 2 is a plan view of the transferred article holding device.

FIG. 3 is a left side view of the transferred article holding device.

FIG. 4 is a right side view of the transferred article holding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base body 11a, 11b Clamp body 15 Suction body as clamping means suction means 21 Suction means 22 Air cylinder as advancing and retreating means 25 Suction body A Transferred article

Claims (3)

[Claims] 1. A base body, a pair of clamp bodies provided on the base body so as to be openable and closable to face each other, and capable of holding a transferred article, and provided integrally with at least one of the clamp bodies. And a suction means for adsorbing the vicinity of the edge of the surface of the transferred article facing the base body. 2. The transfer article holding apparatus according to claim 1, wherein the suction means has an adsorbent and an advancing / retreating means for moving the adsorbent back and forth. 3. The transferred article holding device according to claim 1, wherein the clamp body has a holding surface suction means for sucking a surface of the transferred article facing the clamp body. .