JPS60171Y2 - Removal device for long extruded materials - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for taking out a long extruded material, in which the long extruded material extruded from a hot extrusion press is deformed due to buckling etc. when taken out from the extrusion press. The present invention relates to providing a device that has a simple structure and aims to ensure smooth operation of an extrusion press and smooth transportation of extruded material to the next process.

Conventionally, for example, when extruding a long extruded material using a multi-hole die of a hot extrusion press and winding the extruded material sequentially using a winding machine, the distance from the die to the winding machine is usually the same as the installation of the winding machine. Due to its location, it is considered remote.

Therefore, when the extruded material is transported to the winder using only the extrusion force of the extrusion press, the problem is that the extruded material is likely to be deformed by buckling before reaching the winder. Smooth extrusion molding using a press was hindered, and transportation to the winding machine was also hindered.

In view of this problem, conventionally, a take-out conveyor for taking out a long extruded material at the canister guide pipe exit part of a hot extrusion press,
For example, some are equipped with conveyors such as rollers,
In particular, when the extruded material is a hot fine wire material, such as a wire material of 3.4 mm diameter or less, such as phosphor copper solder or silver solder, the buckling deformation problem frequently occurs, causing serious problems.

The present invention was devised in view of such conventional problems, and its feature is that a take-out conveyor for taking out the long extruded material is provided at the outlet of the semi-Yanister guide pipe of the hot extrusion press. The extrusion material conveyance surface of the take-out conveyor is formed in a U-shaped cross section with an upper opening, and a heat-resistant wheel that can freely rotate around a horizontal axis is provided above the conveyance surface, and the outer circumferential surface of the wheel and In order to sandwich and take out the extruded material between the bottom surface of the conveying surface having a U-shaped cross section, the flexible outer end of the wheel is fitted into the conveying surface, and the wheel engages with the conveying surface by frictional engagement. The point is that it can be rotated.

Hereinafter, embodiments of the present invention will be explained with reference to the drawings.
FIG. 2 shows the whole of the hot extrusion press 1. The hot extrusion press 1 includes a pair of fixed opposing frames 2 and 3 at the front and rear with respect to the extrusion direction, a die 4 attached to the front opposing frame 2, a center of the die, That is, it is mainly composed of a container 6 which has a billet 5 accommodation hole above the center of the press and is movable back and forth, and a stem 7 which pushes the billet 5 in the direction of the die 4, that is, in the extrusion direction.

In the illustrated example, the die 4 is a so-called 8-hole extrusion die having eight die holes, and in front of the die 4, a long extruded material 8 extruded from the die hole corresponds to each die hole. A canister guide pipe 9 is provided that guides the canisters in a horizontally juxtaposed manner.

A take-out conveyor 10 for taking out the long extruded material 8 is provided at the outlet of the canister guide pipe 9, and a chute 11 and a winder 12 for the extruded material are arranged in a row at each front end of the take-out conveyor 10. The extruded material 8 taken out and conveyed by the take-out conveyor 10 passes through the chute 11 and is taken out by the winding machine 1.
2.

The take-out conveyor 10 will be described in more detail with reference to FIGS. 3 and 4. The take-out conveyor 10 includes a driving rotating part 13 and a driven rotating part 14, which are a pair of front and back transversely of the axis. Eight chains corresponding to each extruded material 8, for example a roller chain 15 in the figure, are wound around both connecting parts 13 and 14, and the lower surface of the chain 15 on the forward side is placed on a base 16. It is slidably supported on the guide rail 17.

An attachment 18 having a U-shaped cross section and opening upward is attached to each link of the chain 15 at a position of the chain 15 on the forward movement side, and the inner surface of the attachment 18 having a U-shaped cross section is made of extruded material. 8.

On the other hand, above the conveying surface 19 is a support shaft 20 extending laterally to the axis.
It is mounted on a base 16 via bearings 21, 21 such as rolling pins, and a heat-resistant wheel 22 is attached to the support shaft 20 at a position corresponding to each conveyance surface 19.

In the illustrated example, the conveyance surfaces 19 are arranged side by side at equal intervals in the lateral direction, and the wheels 22 are also arranged at equal intervals on the support shaft 20 by means of nupacers 23 fitted onto the support shaft 20.

Each wheel 22 can rotate together with the support shaft 20 or can freely rotate independently around the horizontal axis of the support shaft 20, and the radial outer end 24 of the wheel 22 is connected to the support shaft 20.
It has flexibility at least in the circumferential direction over the entire circumference.

In order to sandwich and take out the extruded material 8 between the outer circumferential surface 25 of the wheel 22 and the bottom surface 26 of the conveying surface 19 having a U-shaped cross section, the outer end 24 of the wheel 22 is connected to the conveying surface 19.
The wheel 22 is fitted into the conveyor surface 19, and the wheel 22 is rotationally driven by frictional engagement with the conveying surface 19.

In the illustrated example, both side surfaces of the outer end portion 24 are in frictional engagement with or in contact with opposing inner surfaces 27, 27 of the conveyance surface 19, respectively.

In this case, the moving speed of the conveying surface 19 is 1.1 to 2.0 times the speed of the extruded material 8 being conveyed. O@ is preferred.

That is, since the wheel 22 is rotated by frictional engagement with the conveyance surface 19, this is to compensate for a decrease in speed due to slip.

5 and 6 show details of the wheel 22. The wheels 22 are made of short shelf-shaped flexible asbestos blocks arranged radially and bonded to each other with adhesive at their centers. Sheet 28, sheet metal boss members 29 and 29 fitted on both sides of the center of the sheet 28 group, and metal pieces and asbestos interposed between each adjacent sheet 28 at the center of the sheet 28 group. It is composed of a backup plate 30 consisting of a piece, etc.

Both boss members 29, 29 are provided with support holes 31, 31, respectively, in the center of which the support shaft 20 is fitted relatively rotatably, and the backup plate 30 is
At the outer end 24 of the wheel 22, adjacent sheets 28
are maintained at predetermined intervals in the circumferential direction, and a predetermined bending allowance is given to the end of the sheet 28.

In the illustrated example, the gap size (h) between the outer circumferential surface 25 of the wheel 22 and the bottom surface 26 of the conveying surface 19 changes from the state in which the outer end 24 is bent and presses the extruded material 8 and the bottom surface 26 to the extruded material 8. The height of the gap (h) is approximately the same as the height of the extruded material 8 - 1 For example, if the extruded material 8 is a wire rod, the height of the extruded material 8 is approximately the same as the diameter of the wire. It is preferable to prevent excessive tension from acting on the extruded material 8 between the extrusion press 1 and the wheel 22.

In the above case, the sheet 28 may be a sheet impregnated with silica or a sheet containing glass fiber, but both of them are heat resistant and flexible, and are particularly flexible. Flexibility is required in order to knock down the extruded material 8 onto the conveying surface 19 when the tip of the extruded material 8 extruded from the extrusion press 1 is introduced between the conveying surface 19 and the wheel 22.

According to the present invention, the extruded material 8 is connected to the wheel outer peripheral surface 25,
The long extruded material 8 is extruded from the hot extrusion press 1 to be taken out while being held between the bottom surface 26 of the conveying surface 19.
However, when it is taken out from the extrusion press 1, deformation in the lateral direction, that is, deformation due to buckling or the like, is prevented as much as possible.

Furthermore, since the wheel 22 that clamps the extruded material 8 is rotationally driven by frictional engagement with the conveyance surface 19, there is no need to provide a driving body for the wheel 22 itself, which is advantageous in that the structure is simple.

Therefore, since deformation of the extruded material 8 is prevented, excellent effects such as smooth operation of the extrusion press 1 and smooth transportation of the extruded material 8 to the next process can be achieved. be.

[BRIEF DESCRIPTION OF THE DRAWINGS] The figures show an embodiment of the present invention.
The figure is an overall side view, Figure 3 is a sectional view taken along the line ■-■ in Figure 2, Figure 4 is a sectional view taken along the IV-TV line in Figure 3, and Figure 5 is a partial enlargement of Figure 4. 6 is a sectional view taken along the line VI-VI in FIG. 5. 1... Extrusion press, 8... Extruded material, 9
...Canister guide pipe, 10...
・Take-out feed bearer, 19... Conveyance surface, 22...
...Wheel, 24...Outer end, 25...
...Outer surface, 26...Bottom surface.

Claims (1)

[Scope of utility model registration request] A take-out conveyor for taking out a long extruded material is provided at the canister guide pipe outlet of the hot extrusion press, and the extruded material conveyance surface of the take-out conveyor is formed in a U-shaped cross section with an upward opening. is provided with a heat-resistant wheel that can freely rotate around a horizontal axis, and in order to take out the extruded material by pinching it between the outer peripheral surface of the wheel and the bottom surface of the conveying surface that is U-shaped in cross section, the flexible outer surface of the wheel is A device for taking out a long extruded material, characterized in that an end portion of the wheel is fitted into a conveying surface, and the wheel is rotationally driven by frictional engagement with the conveying surface.