JPH10139112A - Work stock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a work stock device constituted by being provided with a stocker main body and cutting members an object and provide the work stock device which is capable of effectively utilizing capacity of the stocker main body. SOLUTION: In this work stock device 10, rocking partition bars 20, 20 and 20 as partition members which are provided to partition a plurality of stock areas A, B, C and NG in an inclined conveyor 11 as a stocker main body are installed to be moved by being pressed by pistons fed to each stock area A, B, C and NG so as to vary capacity of each stock area A, B, C and NG.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stocker body for transporting a work fed from one end side and accumulating it on the other end side, and a plurality of stock areas in a direction intersecting the work transfer direction in the stocker body. And a partition member provided to define the work stock device.

[0002]

2. Description of the Related Art A conventional automatic piston weighing and stamping machine M shown in FIG. 12 uses a pusher P1 to P4 which selectively operates a weighed piston W carried in by a conveyor C, based on the weighing result. Stock areas A1, A2, A for each weight rank in the work stock apparatus S
3 and A4.

[0003]

By the way, in the above-mentioned conventional work stock apparatus S, a partition member Sb1 and a partition member Sb are attached to a stocker body Sa composed of a conveyor or a shooter.
By fixedly installing b2 and Sb3, the stock areas A1 to A4 for each weight rank are partitioned, and the stock amount of the piston W in each of the stock areas A1 to A4 is limited. For this reason, for example, the piston W is concentratedly sent to the stock area A1,
If the stock area A1 becomes full, there is a disadvantage that the operation of the automatic piston metering and stamping machine M must be stopped even if the other stock areas A2 to A4 have a sufficient margin. Was. The present invention has been made in view of the above circumstances, and has as its object to provide a work stock apparatus that can effectively use the capacity of a stocker body.

[0004]

In order to achieve the above object, in a work stock apparatus according to the present invention, there is provided a stocker body for conveying a work fed from one end side and accumulating it on the other end side; A partition member provided to define a plurality of stock areas in a direction intersecting with the workpiece transfer direction, and the partition members entered each stock area in order to make the capacity of each stock area variable. It is installed so that it is moved by being biased by the work.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing one embodiment. 1 to FIG.
An example in which the present invention is applied to a work stock device in an automatic weighing and stamping machine for a piston for a four-cycle engine is shown.

Here, in the engine manufacturing process,
The outer diameter of the piston is ranked and the same rank piston is set in one cylinder.In order to further improve the vibration characteristics of the engine, the pistons are ranked by weight and the pistons of the same rank are ranked. It is set in one cylinder.

The automatic weighing and engraving machine 100 is for separating pistons by weight rank, and is shown in FIGS.
As shown in FIG. 1, the apparatus includes an air blow station St1, a weighing station St2, a marking station St3, a reversing station St4, a work dispensing apparatus 1, and a work stock apparatus 10 according to the present invention.

[0008] The piston as a work is a workpiece that has been processed or is near the completion of processing.
The automatic weighing and engraving machine 100 is installed between the end of the piston processing line and an apparatus for palletizing the engine assembly line, or between the end of the piston processing line and the engine assembly line.

As shown in FIGS. 3 to 5, the work dispensing apparatus 1 comprises a conveyor 2 for transferring a piston sent from a reversing station St4 and a piston W transferred on the conveyor 2 for a measuring station St.
And a pusher 3 for selectively feeding the stock area A, B, C, or NG of the work stock apparatus 10 to be described later based on the weighing result in Step 2.

The pusher 3 has four air cylinders 3s, 3s,..., And a pusher plate 3p is attached to an operating rod of each air cylinder 3s. The four air cylinders 3s, 3s... Are arranged side by side in the work transfer direction of the transfer conveyor 2 so as to correspond to stock areas A, B, C, and NG of the work stock device 10 described later. Each pusher plate 3 is used to pay out W from the conveyor 2 to the side (downward in FIG. 3).
p, 3p ... are operated.

Reference numeral 4 in the figure denotes a stopper for preventing the piston W from overrunning from the conveyor 2, reference numeral 5 denotes a motor for driving the conveyor 2, and reference numeral s in the figure denotes a conveyor. Reference numeral sl denotes a sensor for detecting whether or not the piston has been carried into the delivery position on 2, and reference numeral sl denotes a sensor for detecting that the piston W is full in the work stock apparatus 10.

On the other hand, the work stock apparatus 10 according to the present invention is provided with an inclined conveyor 11 as a stocker body as shown in FIGS.
1 is installed on the floor F with its upper end (one end side) facing the conveyor 2 of the work discharging device 1.

The inclined conveyor 11 has a large number of drive rollers 12d, 12d... And free rollers 12f, 12f.
Reference numerals 2f denote a plurality of the driving rollers 12d, 12d by the driving motor 13 collectively and alternately.
The piston W is transported from the upper end (one end) to the lower end (the other end) based on the rotation of d.

A pair of left and right work guides 1 is provided on a base frame 14 of the inclined conveyor 11 via portal frames 15A and 15B provided across the transfer area of the piston W.
6 and 16 are fixedly provided, and a work stopper 17 is fixedly provided at a lower end of the base frame 14.

Further, at the upper end of the inclined conveyor 11, a pair of left and right introduction-side work guides 18, 18 are provided.
The work guide 16, the work stopper 17, and the introduction-side work guide 18 are each formed of a resin material in order to prevent the piston W from being damaged.

On the other hand, the portal frames 15A and 15B are provided on the inclined conveyor 11 in a manner along the work transport direction.
Three fixed partition plates (partition members) 19, 19, 19 are fixedly arranged at intervals from each other, and
5B includes three swing partition bars (partition members) 20, 2
0 and 20 are spaced apart from each other.

By the three sets of the fixed partition plate 19 and the swing partition bar 20, the transfer area of the piston W on the inclined conveyor 11 is defined as a stock area A, a stock area B, and a stock area in a direction intersecting the work transfer direction. It is divided into four areas, area C and stock area NG.

As shown in FIGS. 8 to 10, a boss 21 provided at the base end of the swing partition bar 20 is attached to a bracket 22 fixed to the portal frame 15B by a shaft bolt 23.
, So that the swing partition bar 20 can swing freely around the shaft bolt 23 in the left-right direction with respect to the work transport direction of the inclined conveyor 11.

Here, the swing partition bars 20, 20, 20
Swinging left and right, the ranges (capacity) of the stock area A, the stock area B, the stock area C, and the stock area NG on the inclined conveyor 11 change.

Further, a U-shaped stopper block (stopper means) 24 is fixed to the bracket 22, and the base end of the swinging partition bar 20 is connected to the right and left ribs 24a, 24a of the stopper block 24 as shown by a chain line. By abutting on 24a, the swing range of swing partition bar 20 is regulated based on the reason described later.

The fixed partition plate 19, the swing partition bar 20 and the stopper block 24 located in the work transfer area of the inclined conveyor 11 are each made of a resin material in order to prevent the piston W from being damaged. Is formed.

In the automatic weighing and stamping machine 100 having the above-described structure, the piston W, which has been processed at the air blow station St1, the weighing station St2, and the marking station St3, is turned over at the reversing station St4 by a reversing chuck pawl St4a (FIGS. 1 and 2). See)
The workpiece is placed on the conveyor 2 of the work dispensing apparatus 1 in an inverted posture with the top of the piston turned downward. In addition,
Reversing the piston W is a measure for placing the piston W on the conveyor 2 in a stable state.

Here, the piston W (A) of weight rank A
Is sent to the conveyor 2, the air cylinder 3s at the right end in FIG. 3 is operated based on the measurement result at the measurement station St2, and the pusher plate 3p is occupied at the standby position of the chain line. Thereafter, the conveyor 2 is started, and the piston W (A) is transported leftward in FIG.

Next, when the piston W (A) is located in front of the rightmost air cylinder 3s, the air cylinder 3s
s, the piston W (A) is moved to the conveyor 2
Of the inclined conveyor 11 from the upper end (one end) to the lower end (the other end) of the inclined conveyor 11 by its own weight. ) And are stored.

Similarly, in the case of the piston W (B) of the weight rank B, the piston W (C) of the weight rank C, or the piston W (NG) of the NG out of the weight rank,
By selectively operating the air cylinders 3s, 3s... Of the pusher 3, the pistons W (B), W (C),
W (NG) is sent to stock areas B, C, and NG in the work stock apparatus 10, respectively, and is conveyed and stored on the inclined conveyor 11 by its own weight.

When the piston W accumulates in the stock area, the piston W positioned on the drive roller 12d of the inclined conveyor 11 is urged by the drive roller 12d, and the piston W urged by the drive roller 12d is moved. By urging the other pistons W, a force is exerted on each piston W to move toward the work stopper 17 of the inclined conveyor 11, whereby the pistons W in the stock area are staggered with each other. It will be stored in close contact.

Here, as shown in FIG. 10, when more pistons W (C) are fed into the stock area C of the work stock apparatus 10 than the other stock areas A, B, and NG, the stock area is increased. As described above, the swing partition bars 20, 20 defining C are pushed by the moving piston W (C) by the urging force of the drive roller 12d, and the adjacent stock area B and stock area NG, respectively.
By swinging toward, the substantial volume of the stock area C increases.

As described above, each of the stock areas A to N is moved by the swing partition bar 20 which is moved by being urged by the piston.
By making the volume of G variable, each of the stock areas A to N
Even if the supply amount of the piston to G fluctuates,
The entire capacity of the inclined conveyor 11 can be used effectively.

Further, since the pistons W in the stock area are stored in a staggered manner in close contact with each other by being urged by the drive rollers 12d of the inclined conveyor 11 as described above, the area occupied by the pistons W is increased. Is as small as possible, and the capacity of the stock area can be effectively used. In addition, in order to urge the piston W in the stock area, all the rollers in the inclined conveyor 11 may be configured by drive rollers.

By the way, as described above, the swing partition bar 20
The swing range is regulated. This prevents the capacity of each of the stock areas A to NG from being extremely unbalanced, and also prevents the swing partition bar 20 from swinging when the swing partition bar 20 swings. In order to prevent the piston W from deviating from between the bar 20 and the work stopper 17, measures are taken to prevent the size h of the gap from the work stopper 17 from becoming larger than the outer diameter of the piston W. It is.

As described above, the piston W stored in each of the stock areas A to C of the work stock apparatus 10 is taken out of each of the stock areas A to C by an operator's manual operation, palletized (boxed), and subsequently. It is sent to the work process or directly to the next work process.

Needless to say, the work of taking out the piston from each of the stock areas A to C can be performed by an automatically controlled work robot instead of the manual work of the operator.

The work stopper 17 of the inclined conveyor 11 is configured to be openable and closable.
By opening 7, it is also possible to pay out the piston from each of the stock areas A to C.

Further, the number of stock areas in the work stock apparatus is not limited to the above-described embodiment, but can be set arbitrarily according to the number of weight ranks of the piston.

Further, the work stock apparatus according to the present invention is extremely effective not only as a work stock apparatus for an automatic weighing and engraving machine for a piston for a four-cycle engine, but also as a work stock apparatus for working various kinds of works. It goes without saying that it can be applied.

[0036]

As described above in detail, the work stock apparatus according to the present invention comprises: a stocker main body that conveys a work fed from one end side and accumulates on the other end side; and a conveying direction of the work in the stocker main body. And a partition member provided to define a plurality of stock areas in a direction intersecting with each other, and biasing the partition member to a work entering each stock area so as to make the capacity of each stock area variable. It is installed so that it can be moved.

According to the above configuration, the capacity of each stock area is made variable by the partition member which is urged and moved by the work, so that even when the supply amount of the work to each stock area varies, The capacity of each stock area changes appropriately according to the supply amount of the work, and thus, according to the work stock apparatus according to the present invention, the capacity of the stocker body can be effectively used.

[Brief description of the drawings]

FIG. 1 is an overall plan view showing an automatic weighing and engraving machine for a piston for a four-cycle engine, which employs a work stock apparatus according to the present invention.

FIG. 2 is an overall side view showing an automatic weighing and engraving machine for a piston for a four-cycle engine, which employs a work stock apparatus according to the present invention.

FIG. 3 is a plan view showing a payout device.

FIG. 4 is a side view showing the dispensing device.

FIG. 5 is another side view showing the payout device.

FIG. 6 is a plan view showing a work stock apparatus according to the present invention.

FIG. 7 is a side view showing a work stock apparatus according to the present invention.

FIG. 8 is a sectional view of a main part of the work stock apparatus according to the present invention, which is cut away in a conveying direction of a piston.

FIG. 9 is a cross-sectional view of a main part of the work stock apparatus according to the present invention, which is cut away in a direction intersecting with the direction in which the piston is conveyed.

FIG. 10 is a sectional view taken along line XX in FIG. 9;

FIG. 11 is a conceptual plan view showing an operation state of a work stock apparatus according to the present invention.

FIG. 12 is a plan view conceptually showing a conventional work stock apparatus.

[Explanation of symbols]

 Reference Signs List 10: Work stock device, 11: Inclined conveyor (stocker body), 20: Swing partition bar (partition member), 24: Stopper block (stopper means), A, B, C, NG: Stock area, W: Piston ( work).

Claims (3)

[Claims] 1. A stocker main body for conveying a work fed from one end side and accumulating on the other end side, and providing a plurality of stock areas in a direction intersecting the work conveying direction in the stocker main body. A work stock apparatus comprising: a partition member provided with a partition member, wherein the partition member is moved by being urged by a work that has entered each stock area so as to make the capacity of each stock area variable. A work stock device characterized by the following. 2. The work stock apparatus according to claim 1, further comprising stopper means for regulating a moving range of the partition member. 3. The work stock apparatus according to claim 1, wherein the partition member is formed from a resin material.