JPH0610032A - Component input device for continuous heat treatment furnace - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a parts loading device configured to sequentially move a storage hopper containing a large number of parts to a loading port of a continuous heat treatment furnace to supply the components without interruption. [Structure] A rotary table 6 having a polygonal inclined plate made of stainless steel is arranged on an outer peripheral portion in the vicinity of the charging port 1b of the continuous heat treatment furnace 1, and each surface thereof has a charging port 1b of the continuous heat treatment furnace 1. It is configured to stop facing. In addition, an endless belt 8 extending along the inlet plate 1b and below the inclined plate 6a is disposed so as to circulate. A magnet plate 9 is attached to the endless belt 8 and is configured to move in a rising direction along the inclined plate 6a when moving above the endless belt 8. On the other hand, a storage hopper 10 made of stainless steel is arranged on each inclined surface of the rotary table 6, and the bottom surface of the storage hopper 10 has an inclined surface 10a extending along the inclined plate 6a of the rotary table 6. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention sequentially moves a plurality of storage hoppers storing a large amount of parts to a position facing an input port of a continuous heat treatment furnace so that the parts are continuously connected to the input port of the continuous heat treatment furnace. The present invention relates to a component loading device configured to be able to supply.

[0002]

2. Description of the Related Art Recently, when heat treating parts such as screws and washers, many continuous heat treating furnaces have been used which are fully automated so that the number of workers can be reduced. This continuous heat treatment furnace generally has a mesh belt that extends horizontally and circulates at a constant speed, and one end of this mesh belt is exposed to the outside to form a component inlet. In this continuous heat treatment furnace, when the parts are supplied to the charging port, it is necessary to keep the supply amount substantially constant in order to make the quality uniform. Therefore, the component charging device 3 shown in FIG. 3 is arranged in the continuous heat treatment furnace. The component loading device 3 has a machine frame 3a extending in an upright direction, and in the machine frame 3a, endless chains 3b that are circulated and moved by the rotation of a motor (not shown) are arranged on both sides thereof. . Moreover, a case holder 3d for holding a storage case 3c in which parts (not shown) are stored is connected to the two endless chains 3b, and the case holder 3d is moved along with the movement of the endless chain 3b. When the storage case 3c is raised and reaches the highest position, the storage case 3c is inverted and the components in the storage case 3c are discharged onto the supply hopper 3e. Further, below the supply hopper 3e, there is arranged a linear feeder 3f having a conveying chute that extends horizontally at a predetermined distance, and is configured to separate parts into fixed amounts and supply them in the horizontal direction. There is. Further, the conveying chute of the straight-moving feeder 3f extends to above the parts cleaning device 3g, a part of which is located at the charging port 1b of the continuous heat-treating furnace 1, and the parts supplied from the straight-moving feeder 3f in a constant amount are continuously heat-treated. It is configured to be supplied to the charging port 1b of the furnace 1.

[0003]

According to the component feeding device 3 of the continuous heat treatment furnace 1, the worker pushes the storage case 3c storing the components into the case holder 3d to move the endless chain 3b in a circulating manner. Or case holder 3
It is necessary to remove the empty storage case 3c from d, which requires an operator to perform this kind of simple work, which hinders the rationalization of the work. There is a demand for a component feeding device.

The present invention has been invented in view of the above demands, and is a component charging device for sequentially moving a plurality of storage hoppers storing a large number of components to a charging port of a continuous heat treatment furnace to supply the components without interruption. Is to provide.

[0005]

A rotary table which rotates close to an input port of a continuous heat treatment furnace and rotates at a predetermined rotation angle is arranged, and an outer peripheral portion of the rotary table is composed of a slant plate made of a non-magnetic material. ing. The sloping plate of the rotary table is inclined so as to rise toward the edge portion, and an endless belt extending along the sloping plate is arranged so as to circulate at a position below the sloping plate and facing the inlet. Has been done. Moreover, a magnetic material is attached to the endless belt, and the magnetic material is configured to move in the upward direction along the inclined plate when it is located above the endless belt.

On the other hand, a plurality of storage hoppers are arranged on the inclined plate of the rotary table. The storage hopper is made of a non-magnetic material, and the bottom surface of the storage hopper is an inclined surface extending along the inclined plate of the rotary table and a guide surface that is continuous with the inclined surface and has one end above the inlet of the continuous heat treatment furnace and inclines downward. It is configured so that the components in the storage hopper can move in the upward direction along the inclined surface.

[0007]

In the above component feeding apparatus, a plurality of storage hoppers storing a large amount of components are arranged on the inclined plate of the rotary table, and the rotary table is rotated by a predetermined rotation angle to continuously heat treat one of the storage hoppers. Position it facing the furnace inlet.
When the endless belt is circularly moved in this state, the magnetic body attached to the endless belt moves in the direction of rising along the inclined plate of the rotary table. Therefore, the component in the storage hopper, whose bottom surface is in contact with the inclined plate of the rotary table, rises along the inclined surface by the magnetic force of the magnetic body and reaches the guide surface of the storage hopper. After that, as the endless belt moves on the return path side, the magnetic material also separates from the bottom of the storage hopper,
The parts located on the guide surface naturally fall by their own weight and are supplied to the charging port of the continuous heat treatment furnace in a substantially constant amount.

When all the parts are discharged from the storage hopper to the input port of the continuous heat treatment furnace, the rotary table rotates by a predetermined rotation angle and the adjacent storage hopper is positioned facing the input port, and the parts stored in this are stored. Is similarly supplied to the inlet. By repeating the above operation, the components in the plurality of storage hoppers arranged on the rotary table are rapidly and uninterruptedly supplied to the continuous heat treatment furnace, so that the component loading operation can be completely unmanned.

[0009]

Embodiments Embodiments will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes a continuous heat treatment furnace for heat-treating steel parts such as screws, rivets, washers, etc., which has a transport mesh belt 1a extending horizontally in the furnace and circulatingly moving. ing. This transport mesh belt 1
One end of a is exposed to the outside, and a loading port 1b into which the component 2 is loaded is configured. Facing this inlet 1b,
A component loading device 3 that supplies the components 2 in fixed amounts is arranged. The component loading device 3 has a base 5 having a built-in pitch drive unit 4 having a rotary shaft 4a that rotates at a predetermined rotation angle. The rotary shaft 4a of the pitch drive unit 4 has a polygonal rotary table. 6 are connected so as to rotate integrally on a horizontal plane, and the hanger table 7 to be described later is sequentially stopped by facing the charging port 1b of the continuous heat treatment furnace 1 by the operation of the pitch driving unit 4. . The outer peripheral portion of the rotary table 6 is composed of an inclined plate 6a made of stainless steel, which is an example of a non-magnetic material, and the inclined plate 6a is configured to be inclined upward toward the edge. Also,
The thickness of the inclined plate 6a of the rotary table 6 is set to a dimension necessary for transmitting the magnetic force of the magnet plate 9 described later to the component 2 in the storage hopper 10 even if the bottom of the storage hopper 10 described later overlaps. .

Further, an endless belt 8 is arranged on the base 5 at a position close to the inlet 1b of the continuous heat treatment furnace 1 and below the inclined plate 6a of the rotary table 6 and extending along the inclined plate 6a. And is configured to circulate by receiving rotation of a motor (not shown). A magnet plate 9 as an example of a magnetic material is attached to the endless belt 8 so as to intersect the direction in which the endless belt 8 extends and at a predetermined interval. When the magnet plate 9 is above the endless belt 8. It is configured to move in a rising direction along the inclined plate 6a.

On the other hand, a hanger table 7 is attached to each of the inclined plates 6a forming the polygonal surface of the rotary table 6, and a storage hopper 10 made of stainless steel, which is an example of a non-magnetic material, is attached to each of the hanger tables 7. Is suspended. The storage hoppers 10 are open at the top, and the bottom surface thereof is composed of an inclined surface 10a extending along the inclined plate 6a of the rotary table 6 and a guide surface 10b continuous with the inclined surface 10a. The inclined surface 10a forms an angle that does not hinder the ascent of the component 2, and one end of the guide surface 10b extends above the charging port 1b of the continuous heat treatment furnace 1 and descends from the position toward the tip. Is configured to. Further, the storage hopper 10 has an inclined back surface 10c continuous with the inclined surface 10a, and is configured to store the component 2 in a space formed with the inclined surface 10a and having a substantially V-shaped vertical cross section. The inclined surface 10a
Is made thin enough so that the magnetic force of the magnet plate 9 has a sufficient force to pull the component 2 in the storage hopper 10, and the component 2 becomes a belt-like shape as the magnet plate 9 moves. And is configured to move along the inclined surface 10a.

In the above-mentioned component loading device, a plurality of storage hoppers 10 in each of which a large number of components 2 are stored are suspended on a hanger table 7 of a rotary table 6, and the rotary table 6 is rotated by a predetermined rotation angle to make one of them. Is positioned so as to face the input port 1b of the continuous heat treatment furnace 1. In this state, when the motor is rotated and the endless belt 8 is circularly moved, the magnet plate 9 located above the endless belt 8 moves in the upward direction along the inclined plate 6a of the rotary table 6. Therefore, due to the magnetic force of the magnet plate 9, the component 2 in the storage hopper 10 positioned with its bottom surface in contact with the inclined plate 6a of the rotary table 6 becomes a strip shape extending in the direction intersecting with the moving direction thereof along the inclined surface 10a. Rises,
Guide surface 1 located above the inlet 1b of the continuous heat treatment furnace 1.
It reaches 0b. Each magnet plate 9 reaches the highest position and moves on the return path side together with the rear endless belt 8, and the storage hopper 10
The part 2 pulled apart by the magnet plate 9 moves away from the bottom of the guide surface 10 and is inclined downward toward the tip.
Since it has reached b, it is naturally dropped along the guide surface 10b by its own weight and is supplied to the charging port 1b of the continuous heat treatment furnace 1 in a substantially constant amount.

When all the parts 2 are discharged from the storage hopper 10, a detection sensor (not shown) detects this,
The pitch drive unit 4 operates and the rotary table 6 rotates by a predetermined rotation angle. Therefore, the adjacent storage hopper 10 is positioned so as to face the input port 1b, and then the endless belt 8 circulates so that the parts 2 stored therein are similarly processed in the continuous heat treatment furnace 1
Is put into the charging port 1b. The storage hopper 1 attached to the rotary table 6 by repeating the discharging operation of the component 2
The components 2 in 0 are rapidly and continuously supplied to the continuous heat treatment furnace 1 in a substantially constant amount. Moreover, if a supply device (not shown) for supplying a predetermined amount of the component 2 is connected to any of the storage hoppers 10 from which the component 2 has been discharged,
No workers are required for the component loading work, and this kind of work can be completely unmanned.

Although the storage hopper 10 is suspended on the hanger table 7 of the rotary table 6 in the embodiment, the rotary table 6 is
A hopper section (not shown) may be integrally provided in the. Also,
The rotary table 6 is made of a non-magnetic material, but may be made of steel as long as a notch (not shown) is provided at the bottom of the storage hopper 10.

[0015]

As described above, according to the present invention, a plurality of storage hoppers storing a large number of stored components are sequentially moved to the inlet of the continuous heat treatment furnace so that the components can be supplied without interruption. Therefore, a worker is not required for the component loading work, and this type of work can be completely unmanned.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of essential parts showing a state in which a component loading device of the present invention is rotated 90 degrees.

FIG. 2 is a schematic plan view showing a state where the component loading device of the present invention is rotated 90 degrees.

FIG. 3 is a schematic explanatory view showing a state in which the conventional component insertion device is rotated 90 degrees.

[Explanation of symbols]

 1 Continuous Heat Treatment Furnaces 1a Conveying Mesh Belt 1b Input Port 2 Parts 3 Parts Input Device 3a Machine Frame 3b Endless Chain 3c Storage Case 3d Case Holder 3e Supply Hopper 3f Straight Feeder 3g Parts Cleaning Device 4 Pitch Drive Unit 4a 5 Rotating Shafts Table 6 Rotating table 6a Inclined plate 7 Hanger table 8 Endless belt 9 Magnet plate 10 Storage hopper 10a Inclined surface 10b Guide surface 10c Inclined rear surface

Claims (1)

[Claims] 1. A rotary table that rotates at a predetermined rotation angle is arranged close to the inlet of a continuous heat treatment furnace, and the outer peripheral portion of the rotary table is a non-magnetic slant plate, and the slant plate faces the edge. Inclining so as to rise, and arranged so as to circulate and move an endless belt extending along the inclined plate below the inclined plate and at a position facing the inlet.
A magnetic body is attached to the endless belt so that the magnetic body moves upward along the inclined plate when the magnetic body is located above the endless belt. A plurality of storage hoppers are arranged, the storage hopper is made of a non-magnetic material, and the bottom surface of the storage hopper extends along the inclined plate of the rotary table, and one end of the inclined surface extends continuously above the charging port of the continuous heat treatment furnace. And a guide surface that is inclined downwards.