JPH028115A - Material conveyor - Google Patents

Abstract

PURPOSE:To aim at simplification in a conveyor system in structure by setting up a pair of set rollers, which rotate in reverse to each other in making a conveying direction of its axial direction, and setting a roller space down to such a size that added a specified space to a diameter of work, on a feed-in conveyor, and discharging any of different attitude works. CONSTITUTION:A set roller 6 consists of a pair of rollers parallelly installed so as to accord the axial direction with the conveying direction of a feed-in conveyor 5, and this paired set rollers are rotated in reverse to each other, while the clearance is made into a state of being slightly spaced with the diameter of a cylindrical work 1. The set roller 6 is installed in an upper part as far as the specified distance than the feed-in conveyor 5. When various attitude works 1 are fed to this set roller 6 from a B direction, each work 1 comes to a position in parallel with the roller or a rectangular position by rotation of the paired rollers in reverse to each other and it is dropped on the feed-in conveyor 5 for conveyance. In this case, such one as in a rectangular position is rejected by a rejecting device 8 and recirculated, while such one as in a parallel position passes through a lower part of the rejecting device 8 and conveyed to a work part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a material conveying device for conveying a workpiece material in an induction heating device for forging or the like.

[Conventional technology]

FIG. 9 is a side view showing a schematic configuration of a conventional material conveying device used in this type of induction heating device, which is described in, for example, Japanese Patent Publication No. 61-22435. In the figure, (1)
is a workpiece as a cylindrical workpiece material having a predetermined length, (2) is a coil as a processing part that continuously induction heats the workpiece (1), and (3) is a coil (2) that converts the workpiece (1) into a coil (2).
The pinch roller (4) that feeds the
3) is an electric motor that rotationally drives the rollers, and (5) is a feeding conveyor that conveys the supplied workpiece (1) to the pinch roller (3).

Next, the operation will be explained. The workpiece (1) supplied to the feed conveyor (5) is conveyed on the feed conveyor (5) to the entrance of the pinch roller (3), and the pinch roller (3) is rotated by an electric motor (4). , the transported workpiece (1) is fed into the coil (2) at a predetermined speed. The workpiece (1) heated to a predetermined temperature comes out of the coil (2) and is sent to the next forging process.

[Problem to be solved by the invention]

Since the conventional material conveying device is configured as described above, the workpiece (1) supplied to the feed conveyor (5) is conveyed to the pinch roller (3) in the same posture.

Naturally, the workpiece (1) to be fed into the heater (2) needs to be in a normal posture such that its axial direction always coincides with the feeding direction. Therefore, in the conventional material conveying device, a mechanism for aligning the workpiece (1) to the above-mentioned fixed posture is always required in the previous step, such as an orientation device of the type that vibrates a drum called a parts feeder. However, there was a problem in that the entire equipment was large and expensive.

This invention was made in order to solve the following problems, and it is a material conveying device that uses the feed conveyor of a conventional material conveying device as it is and adds a function to align the posture of the workpiece to the conveying device itself. The purpose is to provide.

[Means to solve the problem]

The material conveying device according to the present invention includes an infeed conveyor that is driven to run in the conveyance direction, an alignment roller disposed at a predetermined position above the infeed conveyor, and a material conveyor that is fed out from the infeed conveyor through the alignment roller. The machine is equipped with a discharging mechanism that determines the orientation of the workpiece material and discharges the material that is not in the correct orientation to the side from the above-mentioned feeding conveyor. The alignment rollers are composed of a pair of rollers that are driven to rotate in opposite directions with the transport direction as the axial direction, and the distance between the two rollers is set to be the diameter of the workpiece material plus a predetermined gap. It's straining.

[Effect]

The workpieces are fed in various positions to alignment rollers on an infeed conveyor. Since the pair of rollers constituting the alignment rollers rotate in opposite directions, the workpiece material supplied during this period falls onto the feeding conveyor from between the two rollers. The fallen workpiece material is conveyed in the direction of the coil by the feeding conveyor, and its posture can be either normal or almost perpendicular to this.

The workpieces sent out from the feeding conveyor in either of these postures are discharged sideways by the payout mechanism, while those in the right angle posture are fed into the coil.

〔Example〕

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

In FIG. 1, (1) to 5) are the same as the conventional one.

Reference numeral (6) denotes an alignment roller, the details of which will be explained with reference to FIG. 2, which is a sectional view taken along line 1-1. In the figure, (7a
) (7b) is a pair of rollers installed in parallel so that their axial directions coincide with the conveying direction of the feed conveyor (5), and as shown by arrow A, they are driven by a motor (not shown) in opposite directions. Rotationally driven. Then, both rollers (7a
) and (7b) is such that there is a slight gap relative to the diameter of the workpiece (1). Furthermore, both rollers (7a) (7b) are located slightly above the infeed conveyor (5). (8) is a dispensing mechanism that is applied when the length of the workpiece (1) is larger than its diameter, and FIG. 3 is a plan view of the main part thereof as seen from above. In the figure, the dispensing mechanism (8) is the feed conveyor (5).
) is made up of plates installed at an angle of about 45° with the conveyor direction, and the distance from the lower end of the plate to the top of the feed conveyor (5) is set to a value slightly larger than the diameter of the workpiece (1). There is. (9) is a bypass shooter that comes into contact with the dispensing mechanism (8) and receives the workpiece (1) that is discharged to the side.

Next, the operation will be explained. Workpieces (1) in various postures from the direction shown by arrow B in Fig. 1 are placed on the aligning roller (6).
When supplied to the workpiece (1), rotational force is applied to the workpiece (1) by the rollers (7a) (7b) +c. Since both rollers (7a) and (7b) are rotating in opposite directions as shown by arrow A, the rotational force acts to correct the posture of the workpiece (1) to a constant position. That is, the roller (7
a) The workpiece (1) is fed from between the rollers (7a) and (7b) in a normal posture parallel to (7b), that is, the axial direction of the workpiece (1) matches the conveyance direction of the feeding conveyor (5). Both rollers (7a) and (7
b) falls onto the feed conveyor (5). The workpiece (1) that has fallen onto the feeding conveyor (5) is conveyed by the same conveyor (5) and reaches the dispensing mechanism (8). Here, the workpiece (1) in the normal posture (this position) has a height equal to its diameter, so it passes under the dispensing mechanism (8) as it is and is sent out from the pinch roller (3) to the coil (2). .On the other hand, in the case of workpiece (1) in a right-angled posture,
Since its height is the length in the axial direction and is larger than the diameter, the workpiece (1) comes into contact with the plate of the dispensing mechanism (8) and moves diagonally to the side on the feed conveyor (5). and is discharged to the bypass chute (9). Therefore, only the workpiece (1) in the normal posture and direction is fed to the pinch roller (3). Note that the workpiece (1) discharged to the bypass chute (9) is separately conveyed by a conveyor or the like and is again supplied to the alignment roller (6).

Here, if a large amount of workpieces (1) are supplied to the alignment roller (6) all at once and there is a possibility that complete processing may not be possible,
Or, if the feed conveyor (5) is located at a considerably high position from the floor, workpieces (1
) may be dropped onto the alignment rollers (6) using a lift conveyor. Also, if a hopper is provided at the bottom of this lift conveyor, the workpieces (1) can be fed to this hopper in batches, and then the lift conveyor will align the workpieces (1) one after another and transfer them to the rollers (6). Automatic operation for a certain period of time is also possible.

In addition, in the above embodiment, the rollers (7a) (7b) are
Although it is rotated in the direction shown by arrow A in the figure, it may be rotated in the opposite direction as shown by arrow C. Essentially both rollers (7a)
and (7b) may rotate in opposite directions. However, if the direction is indicated by arrow C, care must be taken as there is a risk of the work (1) being bitten depending on the dimensional relationship between the work (1) and the rollers (7a) (7b).

Furthermore, when a spiral wire is wound around the surface of the rollers (7a) (7b), this wire becomes a protrusion that increases the friction between the workpiece (1) and corrects the posture of the workpiece (1). Increased efficiency. Furthermore, by tilting part or all of the feeding conveyor (5) with respect to the conveyance direction, the probability that the workpiece (1), which is in a perpendicular posture, will fall over and assume the normal posture is improved. Good too.

FIG. 4 is a plan view showing in particular the dispensing mechanism of another embodiment of the present invention, which can also be applied when the length of the workpiece (1) is shorter than its diameter. In the figure, (10a) and (10b) are light transmission type material detection devices that confirm the presence of the workpiece (1). αυ is a material attitude determination device that irradiates the workpiece (1) with a straight beam of light such as infrared rays or X-rays and receives the reflected wave to determine the attitude of the workpiece (1). As shown in Fig. 5, the light emitted from this device αυ is below the height of the workpiece (1),
Set it at a position away from the center height. 04 is a button, and (2) is an air cylinder that drives the q buttons, which is operated by an output signal from the material orientation device αυ. The material detecting device (na) (ub), the material posture determining device (b), the button c14, and the air cylinder (g) constitute a dispensing mechanism 0. In addition,
The material detection device may use a proximity switch.

Next, the operation of this dispensing mechanism α will be explained.

First, when the material detection devices (10a) (10b) detect the approach of the workpiece (1), they send a signal to the material posture determination device αυ. Upon receiving this signal, the material posture determination device q
υ A light beam is emitted toward the workpiece (1) on the feeding conveyor (5) for a predetermined period of time. At this time, if the workpiece (1) is in the normal posture, the workpiece (1)
The reflected light is diverged downward or upward, and the light receiving section placed near the emitting section does not receive the reflected light. When the workpiece (1) is in a perpendicular posture with its axis being vertical, the projected light passes through the center position of the workpiece (1), and at this time the reflected light is detected by the light receiving section. Furthermore, if the length of the workpiece (1) is shorter than its diameter, the axial direction of the workpiece (1) is horizontal and perpendicular to the conveyance direction of the feed conveyor (5). is assumed. In this case, the emitted light is reflected by the flat surfaces at both ends of the workpiece (1), and the reflected light is also detected by the light receiving section.

As described above, the material orientation determining device 0υ determines whether the orientation of the workpiece (1) is a normal orientation or a right-angled orientation based on the presence or absence of an output from its light receiving section. When it is determined that the workpiece (1) is in a right-angled posture, a drive signal is sent from the material posture determination device (11) to the air cylinder (6), and when the workpiece (1) reaches a predetermined position, the button ( 6) to push out the workpiece (1) to the bypass chute (9).

FIG. 6 is a plan view showing a dispensing mechanism in still another embodiment, in which the dispensing mechanism (T) has a tapered portion (15
a ) and a straight part (15b), and the width m of the feeding conveyor (5) left in the straight part (15b) is set to be approximately the same as the radius of the workpiece (1). .

With the above configuration, as shown in FIGS. 7 and 8, which are views of FIG. 6 from the conveyance direction, the workpiece (1) is inserted (FIG. 7) in a right-angled posture. In case,
The workpiece (1) cannot pass through path F'a, is pushed out by the attachment (g), and falls to the side (
Figure 8). However, this dispensing mechanism (c) is a workpiece (1)
This applies when the length of the diameter is longer than the diameter.

Although each of the embodiments described above is applied to an induction heating device for forging, the material conveying device according to the present invention conveys a cylindrical workpiece material of a predetermined length to a processing section while aligning its posture. [Effects of the Invention] As described above, the present invention includes a feeding conveyor and a device provided above the feeding conveyor, which allows the fed workpiece material to be held in a normal posture or in a normal posture. Since it is equipped with an alignment roller that aligns the workpiece in a nearly right-angled attitude, and a discharging mechanism that distinguishes between the two above-mentioned positions and discharges the workpiece in the right-angle attitude from above the feeding conveyor to the side, the material conveying device itself is equipped with A function for aligning the posture of the material can be provided, and the need for a direction alignment device, etc., which conventionally required a separate installation in the preceding stage, is eliminated, reducing the space and cost of the entire facility.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a schematic configuration of a material conveying device in an embodiment of the present invention used in an induction heating device, FIG. 2 is a sectional view taken along line 1-1 in FIG. 1, and FIG. 1 is a plan view of the dispensing mechanism, FIG. 4 is a plan view showing a dispensing mechanism according to another embodiment of the present invention, FIG. 5 is an explanatory diagram showing the operation of the material posture determination device of FIG. 4, and FIG. FIG. 7 is a plan view showing a dispensing mechanism in still another embodiment of the present invention.
Figure 8 is an explanatory diagram showing the operation of the dispensing mechanism in Figure 6;
FIG. 9 is a side view showing a schematic configuration of a conventional material conveying device used in an induction heating device. In the figure, (1) is the workpiece as the material to be processed, (2
) is the coil as a processing section, (5) is the feeding conveyor, (
6) is an alignment roller, (7a) and (7b) are a pair of rollers, and (8)04) αG is a payout mechanism. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] A predetermined length of cylindrical workpiece material is fed in various postures.
In a material transport device that transports materials to the processing section in a regular posture with the axial direction as the transport direction, the feed conveyor is driven to run in the transport direction and rotates in opposite directions with the transport direction as the axial direction. A pair of driven rollers are arranged parallel to each other at a predetermined position above the feed conveyor so that the distance between them is equal to the diameter of the workpiece material plus a predetermined gap, and the rollers are fed from above. an alignment roller that sends the workpiece material onto the feed conveyor in either the normal attitude or an attitude substantially perpendicular thereto;
and a discharging mechanism that determines which of the two postures the workpiece material sent out from the feed conveyor is in, and discharges the workpiece material in the perpendicular posture from above the feed conveyor to the side. A material conveying device characterized by: