JPH03211222A - Receiving vessel for conveying forged product in self-heating annealing furnace - Google Patents

Abstract

PURPOSE:To execute smooth and safe self-heating annealing to a forged product in small setting space by fitting a conveying receiving vessel in which the forged product is put, slantingly upward to an endless conveying member which is intermittently moved to the vertical direction as oval-shape, in a vertical treating chamber. CONSTITUTION:The treating chamber 31 provided with heat insulating material 21 in a frame body 11 is formed as vertical shape to miniaturize the setting space for the self-heating annealing furnace, in which the forged product A is slowly cooled and annealed while utilizing the remaining heat. The above forged products A are contained into plural receiving vessels 71 for conveying fitted to an endless chain 61 engaged with between upper and lower sprockets 51, 53 and intermittently moved to the vertical direction as the oval-shape to convey in the treating chamber 31. Then, the upper side sprocket 51 is formed in smaller diameter and the lower side sprocket 53 is formed in larger diameter and the receiving vessel 71 for conveying is held slantingly upward. By this method, the forged product A is simply contained in the receiving vessel 71 and safely conveyed without falling, and the annealing can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a receiver for transporting forged products in a self-thermal annealing furnace.

BACKGROUND ART In order to impart machinability such as machinability in a subsequent process to a heated steel forged product, the forged product is annealed using a self-heating annealing furnace. The autothermal annealing furnace generally uses the residual heat of the forged product to slowly cool it at 675-b.

The present invention relates to a self-heating annealing furnace used for annealing heated steel forgings, and particularly to a transport receiver in the self-heating annealing furnace whose processing chamber is formed in a vertical shape.

<Prior Art> Conventionally, there are various types of self-heating annealing furnaces used when annealing heated steel forgings, such as a roller hearth type, walking beam type, cast link type, and mesh belt type. All of these systems have a horizontal processing chamber surrounded by heat insulating material and equipped with a heating source and a fan. The forged product is conveyed in a plane from the left to the right, for example, and the forged product is slowly cooled using its residual heat.

<Problems to be Solved by the Invention> However, in the conventional self-heating annealing furnaces as described above, all of them have a processing chamber that is horizontally formed, so that it is difficult to move the forged product, for example, from the left side. Since the device is transported flatly from the front to the right, there is a problem in that the installation space as a whole is large.

The present invention solves this problem.

Means for Solving the Problems> The present invention provides a means for solving the problems of forged products installed in a self-heating annealing furnace for annealing forged products in a vertical processing chamber by slowly cooling the forged products using the residual heat of the forged products. A plurality of transport receivers for storing the forged product are mounted diagonally upward on an endless transport member that is engaged between upper and lower sprockets and moves intermittently in an oval shape in the vertical direction. This product relates to a receiver for transporting forged products in a self-heating annealing furnace.

The transport receiver according to the present invention is applied to an incandescent annealing furnace in which a processing chamber is formed in a vertical shape. The autothermal annealing furnace is equipped with sprockets on the upper and lower sides, and an endless conveying member that moves intermittently in an ellipse in the vertical direction is engaged between the upper and lower sprockets, and the forgings are transferred to the conveying member. A plurality of transport containers for storing the containers are installed so that at least their bottom surfaces face diagonally upward.

Effects> In the present invention having the above configuration, when one of the upper and lower sprockets is intermittently driven, the plurality of transport receivers are intermittently moved via the transport member. Such intermittent movement of multiple transport receivers is as follows: ascent → turning along the upper sprocket; descending → turning along the lower sprocket → rising to the original state; one or more repetitions; Intermittent movement. Therefore, in the rising stage of the transport receiver.

When the forged product is stored in the transfer receiver while the sprocket is stopped, the forged product is formed into a vertical shape as the transfer receiver rises, rotates along the upper sprocket, and descends. In the processing chamber, the material is slowly cooled while gradually reducing its residual heat, and undergoes a prescribed annealing process. The forging is then removed, for example mechanically or by gravity, during the lowering of the transport receptacle or its pivoting along the lower sprocket.

According to the present invention, since the processing chamber is formed in a vertical shape, the transport receiver transports the forged product in an oval shape in the vertical direction, so that the overall installation space is reduced. be able to. When a forged product is stored in a transport receiver attached to a transport member, an oblique downward force is applied to the transport receiver due to the weight of the forged product. Therefore, if the transport receiver is mounted horizontally on the transport member, there is a great risk that the forged product will fall from the entrance/exit.However, in the present invention, the transport receiver is mounted on the transport member diagonally upward. In this case, the lower sprocket is made larger in diameter than the upper sprocket, and an endless conveying member that engages between the upper and lower sprockets and moves intermittently in the vertical direction is used. When a transfer receiver is attached to the transfer receiver, the transfer receiver can be oriented diagonally upward. In addition, if a plurality of transport receivers are attached to the transport member at approximately the center of each of them, the bending moment exerted on the transport receiver by the weight of the forged product against the mounting portion is reduced, so that the transport receiver itself Also, the transport receiver should have an approximately hexahedral outer shape and have numerous holes on the other four sides except for the bottom and one side that serves as the entrance and exit for the forged product. Then, the forged product can be smoothly moved in and out of the transport receiver while reducing the weight of the transport receiver and promoting self-thermal annealing with a stable angle of the forged product.

<Example> Fig. 1 is a side view (partial partial view) schematically illustrating an example of the present invention in relation to a natural annealing furnace in which a processing chamber is formed in a vertical shape.
FIG. 2 is a partially enlarged perspective view schematically showing this embodiment. A processing chamber 31 is formed in a vertical shape surrounded by a heat insulating material 21 supported by a frame 11, and a heat source 41, 42 and a buoy 43 are installed inside the processing chamber 31. Processing room 3
The lower part of the exterior of 1 is an open area 32, and the processing chamber 31 is equipped with an upper sprocket) 51. It is equipped with sprockets 53 and 54 (however, sprocket 54 is not shown, the same applies hereinafter), and in the case of the drawing, the upper sprocket) 51 and 52 are the driving sprockets.

Also, the lower sprockets (53 and 54) are floating sprockets. Between the upper and lower sprockets 51.53 supported on the frame 11, and between the upper and lower sprockets 52.
An endless chain 61 is connected between each of the chains 54 and 54 as a conveying member.
．． 62 are engaged with each other, and a plurality of transport receivers 71 are attached to the endless chains 61 and 62 at predetermined intervals. Endless chain 61, 62 and multiple transport receivers 71
extends between the processing chamber 31 and the open area 32 via an inlet 81 and an outlet 82 provided at the bottom of the heat insulating material 21 surrounding the processing chamber 31 .

In one embodiment shown schematically in FIGS. 1 and 2, the transport receiver 71 has an approximately hexahedral outer shape, with a front surface 71a that serves as an entrance and exit for the forged product open, and a front surface 71a and a bottom surface 71b. A large number of punch holes 71f are formed on the other four sides. The back surface 71c of the transport receiver 71 is an endless chain 761, 62 (7) bending link pieces 61a, 6
It is attached to 2a with bolts and nuts. The chain 61, 62 at the S end is engaged between the upper and lower sprockets 51, 53, and between the upper and lower sprockets 52, 54, respectively.

) 51.52, the lower sprocket 53.54 has a larger diameter, so the conveyance receiver 71 attached as above to the endless chain 61.62 meshed with these sprockets is , except when turning along the upper and lower sprockets 51 to 54, the result is that it is directed diagonally upward.

When the upper sprocket 51, 52 is driven intermittently, a plurality of transport receivers 71 are connected via an endless chain 61, 62.
moves intermittently. Such intermittent movement of the plurality of transport receivers 71 is as described above. During the rising stage of the transport receiver 71 in the open area 32, the sprockets 51 to 54
When the forgings A placed on the charging table 91 are pushed into the transport receiver 71 and stored while the transport receiver 71 is stopped, the forgings are sequentially processed. Product A
is charged into the processing chamber 31 from the inlet 81 together with the transport receiver 71, and is slowly cooled while gradually reducing its own residual heat during the rising, turning and descending stages of the transport receiver 71 in the processing chamber 31. undergoes annealing. The forged product A is loaded together with the transport receiver 71 from the outlet 82 into the open area 32, and falls into the packet 92 due to its own weight when the transport receiver 71 rotates in the open area 32.

3 is a partially enlarged perspective view schematically showing another embodiment of the present invention corresponding to FIG. 2. FIG. Endless chain 63, 64
, the transport receiver 72, its front surface 72a, bottom surface 72b, back surface 72c, punch hole 72f, etc., and other structures whose explanations are omitted are the same as in the case of FIG. 2, but in this embodiment, the transport receiver 72 is Approximately central portions of both sides 72d and 72e of the vessel 72 are extended link pieces 63a and 64 of an endless chain 63 and 64.
It is attached with bolts and nuts via reinforcing members (not shown).

The configuration of the present invention has been described above based on the illustrated embodiment, but in FIG. I can do it.

<Effects of the Invention> As is already clear, the present invention described above has the advantage that the installation space can be reduced and the autothermal annealing furnace can be operated smoothly and safely.

[Brief explanation of drawings]

Fig. 1 is a side view (partially sectional view) schematically showing an embodiment of the present invention in relation to an incandescent annealing furnace, Fig. 2 is a partially enlarged perspective view schematically showing the embodiment, and Fig. 3 2 is a partially enlarged perspective view schematically showing another embodiment of the present invention, corresponding to FIG. 2; FIG. 11...Frame body, 21...Insulating material 31...Processing chamber, 32...Open area 41.42...Heating source,
43...Fan 51.53...Sprocket 61-64...Endless chain 71.72...Transportation receiver

Claims (1)

[Scope of Claims] 1. A receiver for transporting a forged product, which is equipped in a self-heating annealing furnace that anneales the forged product by slowly cooling it using residual heat in a vertical processing chamber. , characterized in that a plurality of transport receivers for storing the forged product are attached diagonally upward to an endless transport member that is engaged between upper and lower sprockets and moves intermittently in an oval shape in the vertical direction. A receiver for transporting forged products in a self-heating annealing furnace. 2. A plurality of conveyors in which forged products are stored in an endless conveyor member that is engaged between an upper sprocket and a lower sprocket with a diameter larger than that of the upper sprocket and moves intermittently in an oval shape in the vertical direction. 2. A receiver for transporting a forged product in an autothermal annealing furnace according to claim 1, wherein the receiver is installed obliquely upward. 3. The transport receiver in a self-thermal annealing furnace for forged products according to claim 1 or 2, wherein substantially the center portions of each of the plurality of transport receivers are attached to the endless transport member. 4. The automatic forged product according to claim 1, 2 or 3, wherein the transport receiver has an approximately hexahedral outer shape and has a large number of holes on four sides other than the bottom surface and the front surface which serves as the entrance and exit portion of the forged product. Receiver for transport in thermal annealing furnace.