JP2012180161A - Workpiece conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying device preventing mutual contact of workpieces requiring no adjustment of weights.SOLUTION: The conveying device 1 includes a conveyor stand 2 having a conveyance surface whose downstream side in a conveying direction is inclined downward, and a swinging element 5 supported on the conveyor stand 2 to be swingable on a swinging shaft 4 perpendicular to the conveyance surface and having an upstream side workpiece receive part 5a on the upstream side, and a downstream side workpiece receive part 5c on the downstream side. When the workpiece 10 which is in contact with the downstream side workpiece receive part 5c is separated from the swinging element 5, the upstream side workpiece receive part 5a of the swinging element 5 swings outward under the weight of another workpiece 10 which is in contact with the upstream side workpiece receive part 5a, and the other workpiece 10 moves to the downstream side under the weight.

Description

  The present invention relates to a workpiece transfer apparatus.

  Patent Document 1 discloses a transport device in which a guide claw that can swing in parallel to the side surface is attached to a side surface of an inclined transport rail. The guide claw has a fan-shaped wide portion on the upstream side, and a weight is attached to the wide portion.

  With this configuration, when the workpiece is placed on the downstream portion of the guide claw, the wide portion protrudes onto the conveyance surface, and the wide portion contacts the workpiece and another workpiece on the upstream side. Is blocked.

  When the work is carried out, the guide claw swings due to the weight of the weight, the wide portion is lowered and the above-mentioned protrusion is eliminated, and the downstream portion of the guide claw protrudes onto the conveyance surface. Then, another work on the upstream side moves to the downstream side while pushing down the downstream side portion of the guide claw by its own weight. After the other workpiece passes through the wide portion, the wide portion protrudes again on the conveying surface due to the weight of the weight, and contact between the other workpiece and another workpiece on the upstream side is prevented.

JP 2000-226117 A

  According to the configuration of the above-described prior art, the workpieces to be conveyed do not contact each other, and noise and workpiece damage due to the workpieces contacting each other are prevented.

  However, in order for another workpiece on the upstream side to move downstream by its own weight after the workpiece has been unloaded, it is necessary for the other workpiece to push down the downstream portion of the guide claw against the weight of the weight. For this purpose, adjustment of the weight balance between the workpiece and the weight and adjustment of the attachment position of the weight are necessary.

  That is, in the configuration of the conventional technique, it is necessary to adjust various portions of the transport device according to the weight of the work to be transported.

  If the workpiece cannot push down on the downstream side of the guide claw, the workpiece can be conveyed if the conveyance rail is steeply inclined. However, it is necessary to reconstruct the conveyance rail support base, and the workpiece is wide. This is not preferable because the impact when contacting the part increases.

  This invention is made | formed in view of such a technical subject, and is making the adjustment of the said weight unnecessary in the conveying apparatus which can prevent the contact of workpiece | work.

  According to an aspect of the present invention, there is provided a workpiece transfer device having a transfer table having a transfer surface inclined downward on the downstream side in the transfer direction, and swinging about a swing axis perpendicular to the transfer surface. A workpiece that is supported by the transfer table and has an upstream work receiving portion on the upstream side and a rocking body having a downstream work receiving portion on the downstream side, and is in contact with the downstream work receiving portion. When separated from the swinging body, the upstream work receiving part of the swinging body swings outward due to the weight of another work contacting the upstream work receiving part, and the other work is caused by its own weight. There is provided a workpiece transfer device that moves downstream.

  According to the above aspect, after the downstream work is unloaded, the upstream work receiving portion of the rocking body rocks outward and another upstream work moves downstream. The workpieces do not come into contact with each other, and noise and workpiece damage caused by the contact between the workpieces can be prevented. Adjustment of the weight balance between the workpiece and the weight and adjustment of the weight attachment position, which are necessary in the conventional apparatus, are unnecessary.

It is a front view of the workpiece conveyance apparatus which concerns on embodiment of this invention. It is a side view of the workpiece conveyance apparatus which concerns on embodiment of this invention. It is a figure for demonstrating operation | movement of the workpiece conveyance apparatus which concerns on embodiment of this invention.

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

  1A and 1B show a transfer device 1 for a workpiece 10 according to an embodiment of the present invention. In the present embodiment, the workpiece 10 has a cylindrical shape with a flat bottom surface.

  First, the configuration of the transport device 1 will be described. The transport apparatus 1 includes a transport base 2, a pair of transport rails 3, a plurality of swing shafts 4, a plurality of swing bodies 5, and a stopper 6.

  The transport table 2 has an upper surface 21 whose downstream side in the transport direction is inclined downward with respect to the horizontal.

  The pair of transport rails 3 are attached to the upper surface 21 of the transport table 2 and each have a plurality of rollers 31 arranged in the transport direction. The pair of transport rails 3 form a transport surface of the workpiece 10 whose downstream side in the transport direction is inclined downward with respect to the horizontal.

  The plurality of oscillating shafts 4 are pins erected on the transport table 2 outside the transport rail 3. Each swing shaft 4 is perpendicular to the transport surface of the workpiece 10.

  Each of the plurality of oscillating bodies 5 is a substantially rectangular flat plate member extending in the transport direction. Each oscillating body 5 is rotatably supported at the center by the oscillating shaft 4, and can oscillate around the oscillating shaft 4 in parallel to the upper surface 21 of the transport table 2.

  Each oscillating body 5 has a corrugated side surface on the conveying rail 3 side, and an upstream work receiving portion 5a, a central concave portion 5b, and a downstream work receiving portion 5c are formed on the side surface in this order from upstream. In the present embodiment, the upstream work receiving part 5a, the central recess 5b, and the downstream work receiving part 5c are all shapes along the side surface of the work 10, that is, a part of an arc.

  The distance between the adjacent oscillating bodies 5 is that the workpiece 10 disposed between them is in contact with the upstream work receiving portion 5a of one oscillating body 5 disposed on the downstream side thereof and at the same time on the upstream side. The distance is set so as to come into contact with the downstream workpiece receiving portion 5c of the other oscillator 5.

  As a result, in a state where the workpiece 10 is in contact with the downstream work receiving portion 5c of the swinging body 5, the swinging of the swinging body 5 to the outside of the upstream work receiving portion 5a is restricted, and the downstream of each work 10 Movement to the side is restricted.

  The stopper 6 is a rod-like member provided on the most downstream side of the transport table 2 and comes into contact with the workpiece 10 located at the most downstream position. The position of the stopper 6 is a position where the workpiece 10 contacts the stopper 6 and simultaneously contacts the downstream workpiece receiving portion 5c of the rocking body 5 arranged on the most downstream side.

  Next, the operation of the transport apparatus 1 will be described with reference to FIG.

  For convenience of explanation, the rocking body 5 arranged on the most downstream side is called a first rocking body 5-1, and the rocking body 5 arranged on the upstream side thereof is called a second rocking body 5-2. Moreover, the three workpiece | work 10 shown by Fig.2 (a) is called the 1st workpiece | work 10-1, the 2nd workpiece | work 10-2, and the 3rd workpiece | work 10-3 in order from the downstream.

  First, the first work 10-1 is unloaded, and when the first work 10-1 is separated from the downstream work receiving portion of the first rocking body 5-1 (FIG. 2A), the second work 10-2 is moved. The upstream work receiving portion of the first rocking body swings outward due to the weight, and the second work 10-2 moves downstream due to its own weight (FIG. 2B).

  Thereafter, the second workpiece 10-2 moves further downstream while being guided by the central recess of the first rocking body 5-1. When the second work 10-2 is separated from the downstream work receiving part of the second rocking body 5-2, the upstream work receiving part of the second rocking body 5-2 is also moved outward by the weight of the third work 10-3. The third workpiece 10-3 also moves to the downstream side by its own weight (FIGS. 2B to 2C).

  As the second work 10-2 and the third work 10-3 move downstream, the downstream work receiving portions of the first rocking body 5-1 and the second rocking body 5-2 are now swung outward. To allow further movement of the second workpiece 10-2 and the third workpiece 10-3 to the downstream side (FIG. 2D).

  Finally, the second workpiece 10-2 comes into contact with the stopper 6 and stops, and the downstream workpiece receiving portion of the first rocking body 5-1 contacts the second workpiece 10-2. Further, the third work 10-3 comes into contact with the upstream work receiving portion of the second rocking body 5-2 and stops (FIG. 2 (e)).

  The state in which the second workpiece 10-2 and the third workpiece 10-3 are stopped is the same as the state of FIG. Therefore, when the second workpiece 10-2 is carried out from this state, the operations of FIGS. 2B to 2E are performed again.

  Then, the effect of this embodiment is demonstrated.

  According to the present embodiment, when the workpiece 10 is carried out, the upstream workpiece 10 sequentially moves to the downstream side. During the conveyance, the workpieces 10 do not contact each other, and noise and scratches on the workpiece 10 caused by the workpieces 10 contacting each other are prevented. It is not necessary to adjust the weight balance between the workpiece and the weight and to adjust the position where the weight is attached, which is necessary in the conventional apparatus (operation and effect corresponding to claims 1 to 3).

  Further, as in the present embodiment, if a plurality of the oscillating bodies 5 are arranged side by side in the transport direction, the plurality of workpieces 10 can be continuously transported without contacting each other (operational effect corresponding to claim 2). .

  In addition, as in the present embodiment, the upstream work receiving portion 5a of the rocking body 5 is shaped along the side surface of the work 10, so that the weight of the work 10 disposed on the upstream side of the rocking body 5 is increased. The entire workpiece receiving portion 5a can be received, and the upstream workpiece receiving portion 5a of the swinging body 5 can be reliably swung outward (effect corresponding to claim 3).

  As mentioned above, although embodiment of this invention was described, the said embodiment showed only a part of application example of this invention, and is not the meaning which limits the technical scope of this invention concretely of the said embodiment. .

  For example, in the above-described embodiment, the workpiece 10 has been described as having a cylindrical shape. However, the shape of the workpiece 10 is not limited thereto, and may be a different shape, for example, a polygon, within a range in which the transport device 1 functions.

  Further, in the above embodiment, the oscillating body 5 is provided on both sides of the transport rail 3, but the same function can be achieved by providing the oscillating body 5 on only one side of the transport rail 3. That is, it is not an essential configuration of the present invention to provide the rocking bodies 5 on both sides of the transport rail 3.

  Moreover, the number of the rocking bodies 5 is not limited to the number shown in the present embodiment, and may be smaller or larger than this. Since the oscillating body 5 functions even if it is provided only on one side of the transport rail 3 as described above, the minimum number of oscillating bodies 5 is one.

  Further, the swing shaft 4 may be erected on the swing body 5 side instead of the transport base 2. In other words, the swing shaft 4 and the swing body 5 may swing integrally.

  In addition, according to the above embodiment, adjustment of the weight balance between the workpiece and the weight and adjustment of the attachment position of the weight as in the conventional device are unnecessary, but the present invention excludes attaching the weight to the oscillator. Instead, a weight may be attached to the oscillator as necessary.

DESCRIPTION OF SYMBOLS 1 Conveying device 2 Conveying stand 4 Oscillating shaft 5 Oscillating body 5a Upstream work receiving part 5b Central recessed part 5c Downstream side receiving part 10 Workpiece

Claims (3)

A workpiece transfer device,
A transport table having a transport surface inclined downward in the transport direction;
An oscillating body that is supported by the conveying table so as to be able to oscillate about an oscillating axis perpendicular to the conveying surface, and that has an upstream work receiving portion on the upstream side and a downstream work receiving portion on the downstream side ,
With
When the work contacting the downstream work receiving part is separated from the swinging body, the upstream work receiving part of the rocking body is moved by the weight of another work contacting the upstream work receiving part. Rocks outward, and the other workpiece moves downstream due to its own weight,
A workpiece transfer device characterized by that. The workpiece transfer device according to claim 1,
A plurality of the oscillators are provided side by side in the transport direction,
The distance between adjacent oscillating bodies is such that the workpiece located between them contacts the upstream work receiving portion of one oscillating body arranged on the downstream side and the other oscillating body arranged on the upstream side. It is a distance in contact with the downstream work receiving part,
A workpiece transfer device characterized by that. A workpiece transfer device according to claim 1 or 2,
The upstream work receiving portion has a shape along a side surface of the work.
A workpiece transfer device characterized by that.

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