JPH0772017B2 - How to separate stacked parts - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a technique for separating a predetermined number of parts stacked in a magazine, and is particularly suitable for separating press-punched parts made of a thin plate. is there.

[Conventional technology]

In the conventional separation method, as described in Japanese Patent Publication No. 56-23292, the laminated plate 12 is gripped by the two pairs of claws 10 and 11, and the gripping force of 1:10 is strong and the gripping force of the other 1: 1. While maintaining the weakness, the pair of claws are relatively moved in the direction in which they are separated from each other from the initial position where they are in contact with each other by sandwiching the boundary surface, thereby forcibly separating the laminated plate of a predetermined laminated layer from the remaining laminated plate This is a method for measuring and separating a laminated plate characterized by

[Problems to be solved by the invention]

 The above-mentioned conventional technique has the following problems.

(1) Due to differences in warpage, burrs, etc. of punched products,
When they are stacked obliquely, as shown in FIG. 2, the chuck cannot be performed reliably and the separation reliability is low.

(2) In order to separate the stacked lower part, the force of the chuck claw needs to be set according to the maximum weight of the stacked amount. For this reason, the force is too strong, which may damage the product.

(3) Since the chuck uses a spring force, it may be difficult to separate due to a change in adhesion force due to an oil film or flash.

An object of the present invention is to solve the above-mentioned problems and to reliably separate stacked press parts.

[Means for solving problems]

The above object is to grasp the laminated material in the width direction with at least two pairs of claws, and to relatively move these two pairs of claws in a direction in which they are separated from each other from the initial position where the claws sandwich the boundary surface. This is achieved by forcibly separating the laminated material from the remaining laminated materials by grasping the laminated material with the pawl while applying a pressing force in the stacking direction to the laminated material.

[Action]

When the pressing force is applied, burrs and warps of the laminated member are corrected, and in this state, the two pairs of claws can accurately grasp the laminated member of a predetermined laminated amount.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG. First
As shown in the figure, a cylinder 4 and a cylinder 5 are arranged on a claw 1, and the claw 2 is operated left and right via a link portion 6 by using the cylinder 5 as a driving force. The cylinder 4 vertically moves the claw 2, the cylinder 5, and the link portion 6. Further, the separation 9 unit having the upper and lower configurations is connected to a drive mechanism (not shown) so as to operate in the vertical direction and also in the opposite direction (lateral direction of the paper surface).

Here, α is the distance between the step end surface 1a of the claw 1 and the tip 1b of the claw 1, and β is the distance between the tip 1b of the claw 1 and the tip 2b of the claw 2.

Next, the operation will be described. FIG. 1 is an initial state in which the separation unit 9 is lowered until it hits the stacking component 3. In this process, the stepped end surface 1a of the claw 1 exerts an appropriate pressure from above to make the stacking parts 3 parallel (correction is made even when the stacking parts are slanted and stacked by a spring or the like).

Next, as shown in FIG. 3, the feed component 7 (component to be separated) is chucked from both ends by translating the claw 1 in the opposite direction in the arrow direction. Subsequently, as shown in FIG. 4, the cylinder 5 is operated, and the subsequent separation component 8 following the supply component 7 is chucked by the pawl 2 via the link portion 6. At this time, the pawls 1 and 2 may simultaneously chuck the components 7 and 8, respectively. Thereafter, as shown in FIG. 5, the entire separation unit 9 is lifted up to the middle while the two parts 7 and 8 are chucked. Next, as shown in FIG. 6, the cylinder 4 is operated to separate the closely stacked stacking parts 7 and 8. Next, as shown in FIG. 7, the claw 2 is returned in the direction of the arrow and the separated component 8 is returned to the remaining stacked component 3. After that, the supply component 7 is supplied to a target position (not shown), and one stroke is completed.

In the above embodiment, as shown in FIG. 1, the supply parts are separated from above the stacked parts, and a step α which is approximately equal to or slightly larger than the thickness of the parts to be supplied to the claw 1 is provided and The pressure is applied to reduce the influence of burrs and the chuck position is ensured.
It suffices if it is between 2t <β <t, in order to further improve reliability. The rank is good.

As can be seen from this embodiment, the separation is not limited to one sheet at a time, but it is also possible to separate every predetermined number of sheets. In this case the first
The value of α shown in the figure is set large so that a predetermined number of sheets can be chucked by the claw 1.

Further, in the operation of shifting from FIG. 4 to FIG. 5, the component 7 may be lifted only by the pawl 1 without the component 8 being lifted by the pawl 2.

According to the present embodiment, it is possible to reliably separate a predetermined number of stacked parts that are difficult to separate due to warpage, burrs, oil adhesion, etc., such as pressed parts, and improve the supply reliability.

〔The invention's effect〕

According to the present invention, components stacked by thin plates such as stamped components can be reliably separated for each predetermined number of sheets, so that reliability of component supply can be improved.

[Brief description of drawings]

1 is an operation explanatory diagram of an initial state, FIG. 2 is an operation explanatory diagram of a lowered state, FIG. 3 is an operation explanatory diagram of a state where a supply component is chucked, and FIG. 4 is a separation component being chucked. 5 is an operation explanatory diagram in a raised state, FIG. 6 is an operation explanatory diagram in a raised state, FIG. 6 is an operation explanatory diagram in a separated state, and FIG.
FIG. 8 is an operation explanatory view in a state where the separated parts are returned, and FIG. 8 is a problem of the conventional example. 1-2: claw, 3: stacking member, 4/5: cylinder, 6: link part, 7: supply member, 8: separating member.

Claims (1)

[Claims] 1. A laminated material is grasped in the width direction by at least two pairs of claws, and these two pairs of claws are moved relative to each other in a direction in which they are separated from each other by interposing an interface between them.
When forcibly separating the laminated material of a predetermined laminated thickness from the rest of the laminated materials, the nail is used to grasp the laminated material while applying a pressing force in the stacking direction to the laminated material. A method for separating stacked members.