JP2000061574A - Push out fixture for material to be heated - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge a billet material from a forging heating furnace when the billet material is stagnated in the forging heating furnace. SOLUTION: Plural connection bodies 1 linearly extending are linearly constituted by connecting them each other. Adjacent pairs of connecting bodies, at the state respective end part is slidable along the longitudinal direction, are turnably connected each other. Adjacent pairs of connection bodies, when linearly arranging each other, are slid in the direction approaching each other, thus, each connecting body is linearly fixed each other.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating furnace, such as a forging heating furnace, which heats a material to be heated such as a billet material which is continuously supplied and heated. The present invention relates to a heated material extruding tool used to pass through the inside of an object. 2. Description of the Related Art When manufacturing various machine parts by hot forging, a billet material to be heated is forged after being heated by a forging heating furnace. In the forging heating furnace, the billet material is usually fed into the inside by a pusher or sequentially by a feed roller such as a pinch roller, and is continuously conveyed in the forging heating furnace. Each billet material is heated while passing. [0003] In such a forging heating furnace, when the final billet material is fed into the heating furnace by a pusher or the like, all the billet materials inside the heating furnace are removed. It may not be conveyed, and all billet materials in the forging heating furnace may stay and be excessively heated. Since the overheated billet material may become defective even if forged, if the overheated billet material is likely to be generated in the forging heating furnace, the billet material is quickly forged. It must be discharged from the heating furnace. In addition, even when cooling water is not passed through the heating furnace, it is necessary to discharge the billet material immediately out of the furnace in order to prevent burnout of the electrical insulation material that constitutes the heating furnace. There is. [0004] The forging heating furnace is constructed over an appropriate length so that the billet material to be conveyed is heated to a predetermined temperature. In order to discharge the billet material inside such a long forging heating furnace, a long jig is required. However, when the jig becomes long, there is a problem that its handling is not easy. Also, each billet material is heavy,
If the long jig itself does not have sufficient rigidity, the jig itself may be damaged. The present invention has been made to solve such a problem, and an object thereof is to discharge a material to be heated in a heating furnace smoothly even when the material to be heated stays in the heating furnace. The object of the present invention is to provide a heated material extruding tool in a heating furnace capable of performing the above-mentioned. [0006] A material to be heated extruder in a heating furnace according to the present invention is used for passing a material to be heated continuously supplied into the heating furnace through the inside of the heating furnace. It is a heated material extruder that has a plurality of connected bodies having an appropriate length, the ends of a pair of adjacent connected bodies,
While being slidable along the longitudinal direction, they are rotatably connected to each other, and a pair of adjacent connected bodies are linearly arranged and slid in a direction approaching each other. It is characterized in that the connected bodies are fixed to each other linearly. Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a main part showing an example of an embodiment of a heated material extruding tool of the present invention. The heated material extruder is, for example, a billet material as a material to be heated is sequentially pushed into and conveyed by a pinch roller into a forging heating furnace, and the final billet material is carried into the forging heating furnace. Thus, when the billet material stays in the forging heating furnace, each billet material is used to forcibly pass through the inside of the forging heating furnace. As shown in FIG. 1, the heated material extruding tool of the present invention is configured by connecting a plurality of connected bodies 1 each having a similar shape to each other so as to be linear as a whole. FIG. 2A is a plan view of the connecting body 1 and FIG.
FIG. 2B is a side view of the connector 1, and FIG.
FIG. FIG. 3A is a front view of the connector 1, and FIG. 3B is a rear view of the connector 1. The connecting body 1 includes a long plate-shaped connecting body 10, an upper plate body 20 having a downwardly-curved “H” cross-section attached to the upper part of the connecting body 10 along the longitudinal direction, and a long lower part of the connecting body 10. And a lower plate member 30 that is attached along the direction and has an upwardly-facing “H” cross section. FIG. 4A is a plan view of a connecting body 10 constituting the connecting body 1, FIG. 4B is a side view of the connecting body 10, and FIG. It is a front view.
The connecting main body 10 has a long plate-shaped connecting main body 11 and a pair of support plates 12 attached to one end (base end) of the connecting main body 11. The connecting main body 11 has a constant width direction dimension except for the front end portion, and the front end portion of the connecting main body portion 11 extends outward by an equal size on each of the upper and lower sides to have a constant width. A guide portion 11a extending in the direction dimension and extending toward the distal end is provided. Guide part 11
The width of the distal end portion is gradually reduced toward the distal end, and the side edge of the distal end is connected to the connecting body 1.
1 is formed in a straight line so as to be parallel to the width direction.
A boss 11b is provided on the side edge on the distal end side of the guide portion 11a and has the same width dimension as the side edge and protrudes toward the distal end side. The side edge on the tip side of the boss 11b protrudes in an arc shape. At the center in the width direction of the guide portion 11a,
An elongated hole 11c parallel to the axial direction is provided. At the center of the base end of the connecting body 11 in the width direction, there is provided a recess 11d which is open at the side edge on the base end side. The recess 11d has a constant width dimension except for an end on the opening side, and a portion having the constant width direction has a boss 11b provided at the tip end of the coupling body 11. However, it can be fitted without swinging up and down. Each inner side surface at the opening-side end of the concave portion 11d is a guide surface 11e that is inclined so as to be sequentially located outward as approaching the opening side. The inner edge side of the recess 11d is connected to the connecting body 1
1 are linear along the width direction. At the base end of the connecting body 11, a recess 11d is provided.
And a pair of support plates 12 arranged so as to sandwich them. Each support plate 12 is in the form of a rectangular flat plate whose width dimension is slightly smaller than the width of the connection body 11, and one side portion covers almost the entire area of the recess 11d. In addition, they are respectively arranged along the respective surfaces of the connecting main body 11 and are attached to the respective surfaces of the connecting main body 11. The other side of each support plate 12
Each extends outward from the base end of the connecting body 11. At the center in the width direction at the tip of the extension side of each support plate 12, through holes 12a are provided in a state facing each other.
The book support pins 14 are inserted therethrough. [0013] Between a pair of support plates 12 provided at the base end of the connecting body 11, a connecting body 10 is provided at the distal end of the connecting body 11 of another connecting body 10 connected to the connecting body 10. The boss portion 11b and the guide portion 11a are fitted, and the through holes 12 provided in each support plate 12 are provided.
The support pin 14 inserted between the guide portions 1a
It is inserted into a long hole 11c provided in 1a. A pair of connecting bodies 10 connected to each other by the support pins 14 are
The support pin 14 can rotate with respect to each other, and
By sliding inside, they can slide with each other along the axial direction. The bosses 11b of the other connecting body 10 are fitted into the recesses 11d of the one connecting body 10, so that the connecting bodies 10 are fixed in a linearly arranged state. Conversely, after sliding the connecting bodies 10 together so that the boss 11b of one connecting body 10 comes out of the recess 11d of the other connecting body 10, each connecting body 1
When the 0s are rotated about the support pins 14, the connecting bodies 10 are bent to an angle of about 90 °. As shown in FIG. 2 and FIG.
The upper plate body 20 is attached to the upper part except for the zero guide part 11a. The upper plate body 20 is bent in a U-shaped cross section so that the left and right width direction central portions protrude upward, and each of the left and right side upper surfaces extends along the width direction. A plurality of ridges 21 are provided at regular intervals in the longitudinal direction. At the end of the upper plate body 20 located on each support plate 12 provided on the connecting body 10,
At the center in the left-right direction, a groove 22 along the connecting body 11
Is provided. A lower plate 30 is attached to a lower portion of the connecting body 10 except for the guide portion 11a. Lower plate 30
Is bent in the shape of a cross-section “H” so that the center in the left and right width directions protrudes downward, opposite to the upper plate body 20. The width dimension of the lower plate 30 is the upper plate 2
0 is larger than the dimension in the width direction. A plurality of protrusions 31 each extending along the width direction are provided on the lower surface of each of the left and right side portions of the lower plate body 30 at regular intervals in the longitudinal direction. At the end of the lower plate body 30 located below each support plate 12 provided on the connecting body 10, a groove 32 along the connecting body 11 is provided at the center in the left-right direction. The upper plate 20 and the lower plate 30 are sandwiched by pinch rollers for pushing the billet material into the forging heating furnace, and are carried into the forging heating furnace in the same manner as the billet material. . In the heated material extruding tool of the present invention, the connecting body 10 of the connecting body 1 has one end (the tip side) according to the length of the forging heating furnace into which the billet material to be heated is sequentially pushed. Of the connecting body 10 of the adjacent connecting body 1 in order from
Is fixed against. Each connection body 10
Has a length of, for example, 370 mm, and is usually used for discharging a billet material in a forging heating furnace.
８8 connectors are interconnected. In such a heated material extruding tool, usually, a pair of connecting bodies 10 connected by a support pin 14 are connected to each other.
In a state where the pin can be rotated around the support pin 14, the reel is wound up by a reel at an upstream side of a pinch roller for supplying a billet material into the forging heating furnace. When the billet material stays in the forging heating furnace, the connected bodies 10 are sequentially unreeled from the reel, and the connecting bodies 10 of the pair of connected bodies 1 connected by the support pins 14 are connected to each other. In order from the connecting body 10 located on the distal end side, the adjacent connecting bodies 1 are sequentially arranged so as to be linear with each other.
It is fixed in a straight line with respect to 0 and is carried into a forging heating furnace by a pinch roller. In this case, as shown in FIGS. 5 (a) to 5 (d), a pair of connected bodies 1 connected to each other by support pins 14 are provided.
The connecting bodies 10 in each connecting body 1 are mutually rotated so that they are aligned with each other. At this time, since the connecting main bodies 10 are rotated in a state where the support pins 14 are located in the ends on the distal end side of the elongated holes 11c,
Boss 11b provided at the tip of one connecting body 10
Is smoothly rotated without contacting the guide surface 11e of the concave portion 11d provided in the other connecting body 10. Thereafter, as shown in FIG. 5D, when the connecting bodies 10 of the connecting bodies 1 are aligned, the connecting bodies 1
The support pins 14 are slid in the elongated holes 11c by sliding the 0's closer to each other. As a result, the support pin 14 is positioned in the base end of the elongated hole 11c, and the boss 11b
Is fitted into the recess 11d of the other connecting body 10, and the boss 11b is positioned in the recess 11d so as not to swing vertically. In such a state, the pair of linked bodies 1 are fixed in a straight line without being bent mutually. In this way, when an appropriate number of connected bodies 1 are fixed to each other in a straight line, the upper plate 20 and the lower plate 30 of each connected body 1 fixed in a straight line.
Are successively supplied into a forging heating furnace while being sandwiched by pinch rollers. Then, the billet material staying in the forging heating furnace is forcibly discharged from the forging heating furnace by the respective linearly fixed connectors 1. The material to be extruded according to the present invention has a long forging furnace because the connected bodies 1 of an appropriate length are sequentially inserted into the forging heating furnace in a state of being fixed linearly. Even when the billet material stays at, the required number of connecting books 1 may be fixed to the adjacent connecting books 1 and handling is easy. The adjacent connecting books 1 are firmly fixed without swinging up and down by inserting the boss 11b of the connecting body 10 of the other connecting body 1 into the recess 11d of the one connecting body 10. Even if the heavy billet material stays in the entire forging heating furnace, the connected body 1 is reliably bent without discharging the billet material from the forging heating furnace. Can be done. When the billet material staying in the forging heating furnace is discharged from the forging heating furnace, each connected body 1 which has been fixed in a straight line is drawn out of the forging heating furnace, and each connected body 1
The fixed state between them is released, and the reels are wound on a reel arranged upstream of the pinch roller. As described above, in the heating material extruding tool in the heating furnace of the present invention, the pair of adjacent connected bodies are fixed so as to be linear with each other and bent mutually. It is easy to handle because it is rotated in the state where it is rotated, and even if heavy material stays in the longer heating furnace, the material to be heated can be reliably removed. Can be discharged from the heating furnace.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a main part showing an example of an embodiment of a material to be extruded in a heating furnace of the present invention. FIG. 2 (a) is a plan view of a connected body constituting the heated material extruding tool of the present invention, FIG. 2 (b) is a side view of the connected body,
(C) is a front view of the tip of the connector. FIG. 3A is a front view of the connector, and FIG. 3B is a rear view of the connector. FIG. 4A is a plan view of a connecting body constituting a connecting body, FIG. 4B is a side view of the connecting body, and FIG. 4C is a rear view of the connecting body. 5 (a) to 5 (d) are side views of main parts for explaining the operation of the heated material extruding tool of the present invention. DESCRIPTION OF SYMBOLS 1 Connecting body 10 Connecting body 11 Connecting body 11a Guide 11b Boss 11c Long hole 11d Depression 11e Guide surface 12 Support plate 12a Through hole 14 Support pin

Claims (1)

Claims: 1. A heated material extruding tool used to pass a material to be heated continuously supplied into a heating furnace through the inside of the heating furnace, the tool having an appropriate length. End portions of a pair of adjacent connected bodies are connected to each other in a rotatable manner along the longitudinal direction so as to be rotatable relative to each other. Are connected in a straight line,
A member to be heated extruded in a heating furnace, wherein the connected members are linearly fixed to each other by being slid in a direction approaching each other.