JPH0729091Y2 - Sheet material sorting device in sheet material conveying line - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] This invention relates to a plate material sorting device in a plate material conveying line, and more specifically, in an unloading line for a plate material piece cut by a plate material cutting machine tool such as a shearing machine or a saw. Mainly relates to a sorting device for small-area cut pieces.

[Conventional technology]

The cut pieces cut by a plate material cutting machine tool such as a shearing machine or a saw machine are carried out by a belt conveyor,
Various sorts can be made according to the difference in shape and size by an appropriate sorter.

As a conventional sorting device used in the plate material unloading line, a plurality of stopper devices provided along the traveling path of the conveyor line and a plate material piece on the conveyor stopped by the stopper device are pushed out in a direction orthogonal to the conveyor traveling direction. It is known that one comprising a feeding device, and one comprising a plurality of upward flip-up type conveyors provided along the traveling direction of the conveyor line and a plate material receiving device provided directly below the flip-up type conveyor, However, each of them has a drawback that the number of sorts of plate materials to be sorted is the same as that of sorts and the equipment is large.

That is, the above-mentioned conventional sorting apparatus is for selecting the cut pieces by branching the cut pieces from the different points of the conveyor line to the side or the lower side in the conveying direction while transferring the cut pieces in the traveling direction on the conveyor line. Therefore, as the number of types of plate materials to be sorted increases, the length of the conveyor line becomes longer, and the equipment tends to be large in scale.

Further, particularly when sorting small-area cut pieces, in the sorting device in which the flip-up type conveyor is provided in series, the small cut pieces may fall into a slight void portion at the connecting point between the conveyor and the conveyor. Occurs.

[Problems to be solved by the invention]

This invention is intended to provide a novel plate material sorting apparatus which does not have the above-mentioned drawbacks in a plate material conveying line.

[Means for solving problems]

The plate material sorting apparatus according to the present invention, which does not have the above-mentioned drawbacks, is a sorting apparatus provided at the connecting portion of two consecutive conveyors before and after a conveyor at the rear stage becomes a movable conveyor that can move upward or sideways. A device, a plate material receiver provided immediately below the end of the conveyor on the upstream side, and another plate material receiver that is in a direction orthogonal to the conveyor running direction with respect to the plate material receiver and is provided on the side of the conveyor. A chute plate that is movable along the conveyor traveling direction between a retracted position below the end of the preceding conveyor and overlapping the end of the preceding conveyor and an advanced position that partially protrudes from the end of the preceding conveyor The chute plate has an inclination in a direction orthogonal to the traveling direction of the conveyor, and the lower end thereof, that is, the plate material piece discharge end faces the other plate material receiver in the advanced position. Yes it has been made, furthermore, a device that guides are provided for guiding the movement between the retracted position and the advanced position of the chute plate.

〔Example〕

 Embodiments will be described below with reference to the drawings.

That is, FIGS. 1 and 2 relate to the first embodiment, FIG. 2 is a plan layout view of a sheet metal processing line equipped with the plate material sorting apparatus (1) according to the present invention, and FIGS. 1a and 1b are sorting apparatus respectively. It is a front view (a line AA arrow view of FIG. 2) and a side view of (1), but the sheet metal working line of this embodiment has a pair of upper and lower blades (2) bent in a plane L shape. A known shearing machine (3) (for example, a shearing device disclosed in Japanese Patent Application Laid-Open No. 46-7944) and a work holder () for feeding the sheet metal (W) to the shearing machine (3) while moving according to a predetermined program. Sheet metal supply table with 4) (5)
And three belt conveyors (6), (7) and (8) that carry out the cut pieces (Wa) (Wb) (Wc) cut into a predetermined shape by the shearing machine (3). The cut piece (Wa) of the area is conveyed to the end of the conveyor line by the belt conveyors (6), (7) and (8) and the belt conveyor (8).
It is designed to be carried out of the line from above by an unloader (not shown).

The front and rear conveyors (6) and (8) of the belt conveyors (6), (7) and (8) are fixed, but the intermediate belt conveyor (7) is centered on the rear belt suspension roll. The front side can be flipped up upward (Fig. 1b, one-dot chain line, two-dot chain line), and the present invention is provided at the connection point between the intermediate belt conveyor (7) and the fixed belt conveyor (6) of the previous stage. The sorting device (1) according to the above is provided.

Reference numeral (9) is a hydraulic cylinder provided between the gate-shaped frame (11) installed above the belt conveyor (7) and the support frame (12) of the belt conveyor (7) itself, and the cylinder (9) By expanding and contracting, the intermediate belt conveyor (7) swings up and down between the one-dot chain line and two-dot chain line in FIG. 1b. (13) is a motor for driving the belt conveyor (6), and (14) is a frame.

In addition to the belt conveyor (7) that can be flipped upward as described above, various types such as one that moves up and down while keeping the whole in a horizontal state, one that retreats sideways, etc. Embodiments are possible.

Next, the plate material sorting apparatus (1) will be described in detail with reference to FIGS. 1a and 1b. The sorting apparatus (1) of this embodiment is placed on the floor just below the end of the fixed belt conveyor (6). A large plate material receiver (15) and a relatively small plate material receiver (16) placed on the side of this receiver (15), that is, on the side orthogonal to the traveling direction of the conveyor (6). , Is movable below and below the end of the fixed belt conveyer (6) and between the retracted position where its chute plate surface overlaps the conveyor end in plan view and the advance position partially overhanging from the conveyor end (Fig. 1b). It consists of a moving chute plate (17) which is a solid line and a dash-dotted line). The chute plate (17) has an inclination in a direction orthogonal to the traveling direction of the conveyor (6), and an advance position (chain line in FIG. 1b). Then the discharge end (17a) below it is the other plate receiver (16) It is designed to face up.

Reference numeral (18) denotes a support frame fixed to the side wall (17b) of the chute plate (17), and a bracket (18a) protruding from the lower surface of the support frame (18) and a support frame (14) for the fixed belt conveyor (6). ), The chute plate (17) moves forward and backward over the stroke by expanding and contracting a hydraulic cylinder (19) horizontally provided between the chute plate (17) and the hydraulic cylinder (19). (19a) is the cylinder (1
The rod (21) of (9) is a guide bar horizontally installed on the support frame (14), and the slide member (22) on the lower surface of the support frame (18) is inserted into and supported by the guide bar (21). The chute plate (17) is guided by the so as to move horizontally.

(18b) is a reinforcing rib of the support frame (18), and (23) is a number of idle balls provided on the surface of the chute plate (17), which drop from the fixed belt conveyor (6) onto the chute plate (17). The cut pieces (Wc) that have come are slid on the chute plate (17) very smoothly by the rolling action of the idle balls (23) and are discharged into the plate material receiver (16).

Since the sorting apparatus (1) of the above embodiment is configured as described above, for example, if a relatively large area product cut piece (Wa) is cut out in the sheet metal processing line, the intermediate movable belt conveyor is used. The shearing machine conveys the product cut pieces (Wa) to the final belt conveyor (8) by driving together three belt conveyors (6), (7) and (8) without flipping up (7). In (3), for example, if scrap pieces (Wb) that are scraps and cut pieces (We) that are relatively small areas but are products are cut out, sort them as follows, It discharges to the plate material receiver (15) and the plate material receiver (16) for small articles.

That is, when the scrap cutting pieces (Wb) are carried out on the conveyor (6), the chute plate (17) is not advanced, that is, the hydraulic cylinder (19) is not extended, and the first b
In the retracted state shown by the solid line in the figure, the intermediate belt conveyor (7) is swung up by contracting the hydraulic cylinder (9). Then, the cut pieces (Wb) transferred to the end of the belt conveyor (6) fall into the receiver (15) immediately below the end and are accumulated.

When a small product cutting piece (Wc) is carried out on the conveyor (6), the chute plate (17) is advanced to the state shown by the chain line in Fig. 1b, and then the intermediate belt conveyor (7) )
Bounce up. Then, the cut piece (We) drops from the end of the conveyor (6), is once received by the upper surface of the chute plate (17) and slides down on the chute plate (17), and is a plate material receiver (16) for small products. ).

The cutting piece (Wc) sliding on the chute plate (17) is
As described above, the free-running ball (23) slides very smoothly so that the surface is not scratched or the like.

Chute plate (17) when the above sort operation is completed
Is returned to the retracted position shown by the solid line in FIG. 1b, and the belt conveyor (7) is returned to the horizontal state (shown by the alternate long and short dash line in FIG. 1b).

Next, a second embodiment of the sorting apparatus (1) will be described with reference to FIG.

That is, in this second embodiment device, the conveyor (6)
One plate material receiver (24) (25) is placed on each side of the plate material receiver (15) immediately below the terminal end, and the same hydraulic cylinder (19) mechanism as in the first embodiment is used. The chute plate (17) moving forward and backward along the stroke and the traveling direction of the conveyor (6) is provided with a swivel function in a vertical plane, and the inclination direction of the chute plate (17) is shown in FIG. The chute plate (17) has a support frame (18) supported by a support shaft (26) projecting horizontally from the side wall (17b) of the chute plate (17). Is pivotally supported with respect to the support shaft (26), the end of the support shaft (26) is directly connected to the rotary actuator (27) on the support frame (18), and the chute plate (17) is rotated by the rotation of the rotary actuator (27). It is designed to turn like a seesaw around the support shaft (26). Reference numeral (28) is a positioning stopper protruding from the support frame (18).

Also in the second embodiment, the cut pieces (Wb) (Wc) conveyed to the end of the conveyor (6) by advancing and retracting the chute plate (17) are transferred to the conveyor in the same manner as in the first embodiment. (6)
Plate receivers (15) directly below the edges and plate receivers on both sides (24)
Although it is sorted into (25) and discharged, the inclination direction when the chute plate (17) is in the advanced state is switched by rotating the rotary reactor (27) in an appropriate direction, and the cut piece (Wc ), Depending on the difference in shape or size, right or left plate receptor (24) (25)
It can be sorted and discharged. Therefore, in the case of the second embodiment, the chute plate (17) is a plate material discharge end with both ends (17a) open.

In each of the first and second embodiments, the sorting device (1) is arranged at the end of the conveyor (6) immediately after the plate material cutting machine (shearing machine (3)). By the time it reaches (1), there are no conveyor connecting points,
It is possible to completely prevent the trouble that a small-area cut piece gets stuck in the gap at the conveyor connecting place or falls.

Furthermore, the plate material receivers (15) (16) in the above embodiment
Instead of (24) and (25), a suitable conveyor (not shown) whose plate receiving end extends to a position corresponding to the opening of the receiver (15) (16) (24) (25) may be used. Of course good things.

[Effect of device]

As is clear from the above description, in the plate material sorting device according to the present invention, at least two kinds of cut pieces can be sorted at the same point on the conveyor, so that the conveyor line does not become longer than necessary, Therefore, it is possible to avoid the situation where small-area cut pieces fall into the conveyor connecting place and become stagnant and cannot be sorted.

Moreover, the structure is simple, and the equipment can be installed compactly below the conveyor line. Further, the other plate material receiver is provided on the side of the conveyor, and since there is a large space on the receiver, it is easy to take out the plate material (cut piece).
Thereby, for example, not only the cut pieces can be easily confirmed, but also the cut pieces received by the other plate material receivers can be taken out quickly.

Further, since the guide for guiding the movement of the chute plate between the retracted position and the advanced position is provided, the movement is stabilized.

[Brief description of drawings]

1a and 1b are a front view and a side view, respectively, of a plate material sorting apparatus according to the present invention (FIG. 1a is a view taken along the line AA of FIG. 2), and FIG. 2 is a sheet metal having a plate material sorting apparatus. FIG. 3 is a plan view of the processing line of FIG. 3, and FIG. 3 is a front view of a plate material sorting apparatus in another embodiment. (1) ... plate material sorting device, (6) ... fixed belt conveyor (previous stage conveyor), (7) ... movable belt conveyor (posterior side conveyor), (15) ... plate material receiver, (16)
(24) (25) ... Other plate material receptor, (17) ... Chute plate,
(17a) ... Discharge end (lower end), (19) ... Hydraulic cylinder,
(21)… Guide bar, (Wb)… Scrap cutting piece, (W
c)… Product cut pieces.

Claims (1)

[Scope of utility model registration request] 1. A plate material sorting device provided at a connecting portion of two consecutive conveyors before and after a conveyor at least at a rear stage is a movable conveyor that can move upward or sideways, and a conveyor at a front stage side. A plate material receiver provided immediately below the terminal end, another plate material receiver provided in a direction orthogonal to the traveling direction of the conveyor with respect to the plate material receiver, and below the terminal end of the preceding conveyor. And the chute plate is movable along the conveyor running direction between the retreat position overlapping the end of the preceding conveyor and the advancing position partially protruding from the end of the preceding conveyor, and the chute plate is a conveyor. Has a slope in a direction perpendicular to the traveling direction of the chute plate, and its lower end faces the other plate receiver at the advanced position. The moving guide to guide the provided sorting apparatus of the plate material in sheet transport line, wherein between the position.