JPH0716657Y2 - Stock equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a stocking device for temporarily stocking a work in the middle thereof when the work is conveyed from a pre-process to a post-process in a work processing line.

[Conventional technology]

When the work processed in the previous process is conveyed to the subsequent process, the stock device that temporarily stocks this work is the third
It was configured as shown.

That is, the work 2 processed by the mechanical device 1 in the previous step is temporarily lifted to near the ceiling by the elevating device 3 such as an elevator or a conveyor. Then, it rolls on the linear chute 4 that is formed to be inclined, and a stopper (not shown) is opened and closed to supply the works 2 one by one to the mechanical device 5 in the subsequent process. Further, the straight chute 4 may be a spiral chute.

[Problems to be solved by the device]

However, according to the above-described conventional stock device, when the work 2 is a heavy ring gear, for example, when the work 2 rolls on the linear chute 4, the work 2 collides with each other and a dent is generated. There was a problem of degrading quality.

Further, at this time, there is a defect that noise is generated due to the collision of the work 2 and that conveyance is performed by rolling of the work 2 due to its own weight, and defective conveyance occurs because it is not forced conveyance. Further, since the straight chute 4 is used, there is a problem that the space occupied by the stock device becomes large.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a stock device that occupies a small space and can reliably discharge a work without generating dents or noise.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention has a stocker for temporarily stocking the work in a work processing line, and has a pusher 20 for positioning the work on a transport path at a predetermined position with respect to a lifter. A structure is provided in which work pieces are sequentially stacked and stocked by a pushing-up means 11 capable of pushing up the positioned work pieces to the uppermost position and a first fluid drive stopper 22 for temporarily supporting the pushed work pieces. And a second fluid drive stopper 31 for temporarily supporting the uppermost one of the works stacked by the pushing-up means 11 and the first stopper 22. A fluid-driven puller 36 for discharging the uppermost work supported by 31 to a subsequent step is provided.

[Action]

According to the above configuration, the work positioned at the predetermined position on the transport path is pushed up by the pushing means by the predetermined stroke, and then temporarily supported by the first fluid drive stopper 22. Next, when the lifting means is returned to the original position, the next work is positioned at this position, and the support of the preceding work by the first fluid drive stopper 22 is released, the preceding work is pushed onto the next work. Can be raised. By repeating this operation, a predetermined number of works are stocked. Next, the uppermost one piece is supported by the second fluid drive stopper 31 regardless of the amount of the pushed-up work, and then the workpiece is discharged to the subsequent process by the discharge fluid drive stopper 31. By forcibly moving the work in this way, it is possible to reliably convey and discharge the work without generating dents or noise.

〔Example〕

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

1 and 2 show an embodiment of the present invention. In the figure, a lifter 11 as a work pushing-up means is provided at a predetermined position of the conveyor 10 provided on the work processing line so that it can project from the upper surface of the conveyor 10.
The lifter 11 is fixed to a sliding member 13 via an arm 12, and the sliding member 13 is provided with a guide bar 15 standing on a floor surface 14.
Is vertically slidably guided. A first fluid cylinder 16 is provided on the floor surface 14 parallel to the guide bar 15, and the sliding member 13 is connected to a rod 18 of the first fluid cylinder 16 via a bracket 17.

The lifter 11 is moved up and down by a certain stroke from the upper surface of the conveyor 10 by the operation of the first fluid cylinder 16. Further, the work 19 is placed on the conveyor 10.
A pusher 20 for pressing and positioning the lifter 11 concentrically with respect to the lifter 11 is provided.

The workpiece 19 in this embodiment has a diameter of about 200 mm and a weight of 7 kg.
It is a ring gear of.

On the other hand, at the position where the lifter 11 of the conveyor 10 is provided, brackets 21 are attached to both sides in the width direction, and a first stopper 22 that is a first supporting means is provided on each of the brackets 21. The conveyor 10 is slidably guided and mounted in the width direction.

The bracket 21 has a second fluid cylinder 23 and a second fluid cylinder 23, respectively.
Are provided, and the rods 24 of these second fluid cylinders 23 are adapted to move in the vertical direction. Further, one end of a pair of links 25, 26 is rotatably attached to the tip of the rod 24, and the other ends of the links 25, 26 are rotatably connected to the bracket 21 and the stopper 22, respectively. Then, the operation of the second fluid cylinder 23 causes the first stopper 22 to move back and forth with respect to the work piece 19,
The outer circumference of 19 is locked or released. At this time, the work 19 lifted by the upper surface of the work 19 on the conveyor 10 and the lifter 11 and locked and supported by the first stopper 22.
The distance between the lower surface of 19 and the lower surface is set to be small.

A cylinder 27 having an inner diameter slightly larger than the outer diameter of the work 19 is erected on the bracket 21 concentrically with the lifter 11. The work lifted by the lifter 11 is placed in the cylinder 27.
19 are stacked and stored. In addition, the workpiece 19 is attached to the upper end surface of the cylinder 27.
Is attached to the next step, and brackets 29 are attached to both sides of the cylinder 27 of the ejection plate 28, respectively.

A guide plate 30 is provided on each of these brackets 29 at right angles to the longitudinal direction of the discharge plate 28, and a second stopper 31 as a second supporting means is slidably mounted on each of the guide plates 30. Guided and worn.

Also, the bracket 29 has a third fluid cylinder 32, respectively.
Are provided, and the rods 33 of these cylinders 32 move in parallel with the guide plate 30. The tip of the rod 33 is connected to the second stopper 31, and the third stopper
Operation of the fluid cylinder 32 causes the second stopper 31 to become a cylinder.
The work 19 is supported by being inserted into the outermost lower surface of the uppermost one of the works 19 housed in the 27.

Further, the upper surface of the bracket 29 has a fourth fluid cylinder 34
Is provided in parallel to the discharge direction of the discharge plate 28, and a puller 36 as a discharge means is attached to the tip of the rod 35 of the fourth fluid cylinder 34. 19 is discharged to the discharge plate 28.

Reference numeral 37 is a proximity switch that is attached to the bracket 29 and detects the upper limit position of the stacked works 19.

Next, the operation of this embodiment will be described. The work 19 processed in the previous step is conveyed on the conveyor 10 and pushed by the pusher 20 onto the lifter 11 to be positioned substantially concentrically. When the completion of this positioning is confirmed by a proximity switch (not shown) or the like, the second fluid cylinder 23 is actuated and the rod 24 is pulled in, the first stopper 22 which is the first supporting means is moved outward and opened, The work 19 already stored in the cylinder 27 is placed on the work 19 newly loaded onto the lifter 11. At the same time when the first stopper 22 is opened, the first fluid cylinder 16 is actuated, the rod 18 is raised, the lifter 11 is raised, and when the stacked uppermost work 19 is confirmed by the proximity switch 37, the second The fluid cylinder 23 operates and the first stopper 22 holds the outer circumference of the work piece 19 at the lowermost stage. Then the first
And the fluid cylinder 16 operates to lower the lifter 11 to its original position.

By repeating the above operation, the Min.0
The workpieces 19 from the individual pieces to the Max. Stock number are stacked. If the proximity switch 37 detects the workpiece 19 at the uppermost stage when the lifter 11 is in the original position, a new workpiece is displayed in this state.
The 19 is not loaded onto the lifter 11.

Then, when a payout signal is issued from the subsequent process, the lifter 11 rises regardless of the presence or absence of a new work 19. If there is no new work 19, the lifter 11 rises, and when the proximity switch 37 confirms the stacked uppermost work 19, the third fluid cylinder 32 operates and pushes out the rod 33, The stopper 31, which is a supporting means, is inserted into the outer peripheral lower surface of the work piece 19 at the uppermost stage, and the lifter 11 is lowered when the insertion end of the stopper 31 is confirmed. When the lowering end of the lifter 11 is confirmed, the fourth fluid cylinder 34 is actuated to pull the rod 35, and the puller 36 discharges the uppermost work 19 through the discharge plate 28 to a post process (not shown).

By repeating the above operation, the workpiece 19 to the cylinder 27
Discharge.

If the proximity switch 37 is not confirmed even if the lifter 11 moves up by a predetermined stroke, it means that there are 0 stocks, the lifter 11 moves down, and a new work 19 is inserted.
Stand by in position.

According to the present embodiment, the movement of the work 19 is performed by the fluid cylinders 16,3.
Since the work 19 is forcibly performed, the work 19 can be reliably discharged, and dents and noise are not generated. Further, since the stocks of the works 19 are stacked vertically in the cylinder 27, space saving can be achieved.

Needless to say, the work 19 in the present invention is not limited to the ring gear.

[Effect of device]

As described above, according to the present invention, since the work pieces are stacked and stocked in order from bottom to top, and the first-in first-out operation is performed regardless of the quantity of the stock work pieces, it is possible to reliably discharge the work pieces. No dents or noises are generated, and space saving can be achieved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a stock device according to the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a front view of a conventional stock device. 10 ... Conveyor (conveying path), 11 ... Lifter (pushing means), 19 ... Work, 20 ... Pusher (positioning means), 22 ... First stopper (first supporting means), 31 ...
… Second stopper (second support means), 36 …… Puller (discharging means).

Claims (1)

[Scope of utility model registration request] 1. A stocking device for temporarily stocking workpieces in a workpiece processing line, having a pusher for positioning the workpieces on a transport path at a predetermined position with respect to a lifter, and positioning the workpieces at the maximum position. Workpieces are configured to be sequentially stacked and stocked by a lifting means that can be lifted up to an upper level and a first fluid drive stopper that temporarily supports the lifted work, and the stocked work It has a second fluid drive stopper for temporarily supporting one of the uppermost ones of the works stacked by the pushing-up means and the first stopper, irrespective of the amount, and is supported by the second fluid drive stopper. A stock device comprising a fluid-driven puller for discharging the above-mentioned uppermost workpiece to a subsequent process.