JP2665702B2 - Post-processing equipment for extruded material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a post-processing apparatus for an extruded material, and more particularly to a long extruded material extruded from an extrusion press, which can be conveyed to a stretcher while holding the extruded material without deforming. The present invention relates to a rear surface treatment apparatus.

[0002]

2. Description of the Related Art Conventionally, a long extruded material extruded from an extrusion press is pulled by a puller to a run-out table, placed on the run-out table, and conveyed laterally to the run-out table by a traverse conveying device. Cooling process. After cooling, the extruded material is stretched by gripping both ends of the extruded material by a stretcher to adjust the extruded material straight. The straightened and adjusted extruded material is cut into a predetermined product size and stocked as a product.

[0003] In such post-processing of the extruded material, the puller is pulled by a predetermined tension immediately after extrusion, but when the material is transferred to a run-out table, the puller is unclamped together with the cutting of the head of the extruded material, and the free puller is released. Placed on run-out table in state. The extruded material in a state where both ends are free is traversed from the run-out table by a belt-driven traversing table, which simultaneously functions as a cooling table.After being cooled during the conveyance by air cooling, both ends are stretched by a stretcher. It is to be clamped.

By the way, in the conventional post-surface treatment of extruded material,
As described above, since the extruded material is in a free state at both ends until it is clamped by the stretcher, there is a problem that heat shrinkage starts immediately after extrusion and deformation of the extruded material occurs. In particular, in the case of an extruded material having a long extrusion length and an irregular cross-section, the heat shrinkage is not uniform in the cross-sectional direction, so that warpage or torsion may occur, which may cause wrinkles as a product defect. For this reason, methods for suppressing warpage and twisting after extrusion have conventionally been proposed.

For example, Japanese Patent Publication No. 2-42564 discloses a configuration in which a sub-stretcher is provided at a boundary area between a run-out table and a cooling table, and a blower for pre-compulsively cooling an extruded material gripped by both ends by the sub-stretcher is provided. It is shown. In this method, the initial thermal contraction is performed in a sub-stretch state to reduce the amount of deformation. In addition, Japanese Patent Publication No. 55-18568 discloses a configuration in which holders for gripping both ends of an extruded material at fixed positions on a cooling table are provided to perform stationary cooling to suppress the occurrence of warpage or the like.

[0006]

However, in any of the conventional methods, the extruded material is transported in a free state long along the transport path from the run-out table to the stretcher. The deformation of the extruded material due to shrinkage could not be prevented. In particular, since the temperature drop is high at the time of the initial high temperature after being released from the puller, the thermal deformation is large. There is a possibility that it may not be able to be grasped accurately due to deviation, which has been a problem.

An object of the present invention is to pay attention to the above-mentioned conventional problems, and it is possible to reliably prevent deformation due to thermal shrinkage even during the transportation of an extruded material, and to carry out post-processing during straightening work by a stretcher. It is an object of the present invention to provide a post-surface treatment device for an extruded material capable of effectively preventing deformation of the extruded material.

[0008]

In order to achieve the above object, the present invention provides a post-processing apparatus for extruded material, comprising a head clamping means capable of gripping a head portion of the extruded material in cooperation with an extruded material puller. And a head traveling guide for guiding the head clamp means along the extrusion line and guiding the traverse to the side of the run-out table, and a tail clamp means for gripping a tail portion of the extruded material gripped by the puller. A tail travel guide is provided to guide the travel to the runout table side, and the head travel guide and tail travel guide are extended to the stretcher chucks installed at both ends of the cooling table on the runout table side, and Of the extruded material can be delivered.

[0009]

According to the above construction, the extruded material is gripped on its tail side by a puller and pulled by applying a predetermined tension, but the extruded material is gripped by the head clamp means immediately before shear cutting. After transporting the extruded material to the run-out table in cooperation with the puller, the tail clamp means grips the extruded material tail portion prior to opening the puller. With this, both ends of the extruded material are gripped by the clamp means, but both clamp means form a traverse guide runway to the side of the run-out table by the traveling guide, and can traverse while holding the extruded material, Since this is extended to the stretcher chuck, it can be delivered to the stretcher without releasing the gripping state.
The installation location of the stretcher is a cooling table,
Therefore, it is possible to perform the cooling process in a state of being gripped by the stretcher and to adjust the temperature. For this reason, the extruded material is continuously given a predetermined tension immediately after being separated from the extrusion press to prevent deformation, and while the extruded material is being cooled and straightened, the entire surface of the post-process is completed until the process is completed. During this period, the effect of preventing deformation due to heat shrinkage is extremely high.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an extruded material finishing apparatus according to the present invention.

FIG. 1 is a schematic plan view of a rear surface processing apparatus according to an embodiment. As shown in this figure, a run-out table 14 following the initial table 12 is disposed behind the end platen 10 of the extruder, and a long extruded material 16 discharged from the extruder is temporarily placed on the run-out table 14. To be placed on A puller 18 running along the table is provided to be placed on the run-out table 14, and the puller 18 holds the tail end of the extruded material and pulls and runs at a constant tension in accordance with the extrusion speed. I have. Immediately after the end platen 10, a shear 20 is provided, and when one extrusion is completed, the head end of the extruded material 16 is cut.

A cooling table 22 is provided on a side of the run-out table 14, and a stretcher 24 is provided at both ends of the cooling table 22 and includes a head chuck 24H and a tail chuck 24T. The extruded material 1 is
It is assumed that the rearrangement of 6 is made. Although not shown in FIG. 1, a traversing table 23 (see FIG. 2) that conveys the extruded material 16 on the run-out table 14 to the cooling table 22 is provided, and has a belt-driven table structure. . In the embodiment, the cooling table 22 is also used as a traversing table,
3 is set as the cooling table 22.

In such a configuration, a head clamp 26 which can be moved from the initial table 12 to the run-out table 14 and can grip the head of the extruded material 16 in cooperation with the extruded material puller 18.
Is provided. A first traveling guide 28 for guiding the head clamp 26 along the initial table 12
a, and a head travel guide 28 comprising a second travel guide 28b that continuously guides the runout table 14 to the side.

At the end of the run-out table 14, there is provided a tail clamp 30 which grips the tail portion of the extruded material 16 gripped by the puller 18 and forms a pair with the head clamp 26. A tail traveling guide 32 is provided to guide the tail clamp 30 to the side of the run-out table 14. This tail travel guide 32 is the second of the head travel guide 28.
It is installed in parallel with the travel guide 28b. Then, the second head travel guide 28b and the tail travel guide 32
Is extended to the head chuck 24H and the tail chuck 24T provided at both ends of the cooling table 22 on the side of the run-out table 14 so that the extruded material 16 gripped by the head clamp 26 and the tail clamp 30 is delivered to the stretcher 24. ing.

The specific structure of the above-described head clamp 26 and tail clamp 30 will be described with reference to FIGS.

FIGS. 2 and 3 show the structure of the head clamp 26. FIG. First, a first traveling guide 28a is provided directly above the initial table 12 along the extrusion line, and the run-out table 14 is continuously provided from this end.
From the top of the joint to the side, that is, the transverse table 2
A second traveling guide 28b extending in a direction along 3 is provided. As a result, the head traveling guide 28 has an L-shaped plane configuration. Such a head travel guide 28 is suspended and supported from a ceiling beam member 34, and forms a travel guide groove by making the C channel members face each other. Such a traveling guide 28
Is mounted with a slider 36, which supports the head clamp 26.

The head clamp 26 has a head plate 38 suspended directly from the slider 36, and a head cylinder 38 mounted on the slider 36.
Can be moved up and down. Therefore, the head plate 38 travels with the slider 36 and moves up and down with respect to the slider 36. A head body 42 is mounted on the head plate 38 so as to be slidable back and forth. This can be moved back and forth by a roller 44 attached to the side surface of the head plate 38.
A clamp body 46 is attached to the head body 42,
The clamp body 46 includes a pair of jaws 48 that open and close so as to be sunk into the lower surface of the extruded material 16, and the held extruded material 1.
6 from the upper surface.

The clamp body 46 is connected to the puller 1 described above.
The extruded material 16 is gripped and moved together with the extruded material 16 and the tail clamp 30. The head body 42 to which the clamp body 46 is attached is attached to the head plate 38 by a damper cylinder so as to apply a constant tension to the extruded material 16. 52
Are connected via That is, as shown in FIG. 3, a damper cylinder 52 is horizontally fixed to an end portion of the head plate 38, a rod 54 extending from the damper cylinder 52 is connected to the head body 42, and the clamp body 46 grips the extruded material 16. In this state, when the tension of the extruded material 16 fluctuates, the head body 42 is moved back and forth and absorbed by the damper cylinder 52. As shown in FIG. 4, an electromagnetic relief valve 58 is interposed in the hydraulic supply / discharge circuit 56 of the damper cylinder 52, and the relief pressure is controlled through an amplifier 60 based on a signal from a tension detecting means (not shown). , So that the supporting tension is constant.

Such a head clamp 26 travels along a head traveling guide 28, and after first moving along a first traveling guide 28a, switches the traveling path to a second traveling guide 28b. Therefore, as shown in FIG. 5, a first drive slider 62a is attached to the first travel guide 28a, and a second drive slider 6 is attached to the second travel guide 28b.
2b is attached. These are each prevented from coming off in the driving direction with respect to the head slider 36, and are connected / disconnected in the form of a dovetail and a dovetail groove so that they can be easily detached in a direction perpendicular to the driving direction. It is configured as follows. That is, the first drive slider 62a can be joined to the rear end face of the head slider 36, a T groove 64 is formed in the first slider 62a, and a T-section ridge 66 is formed on the head slider 36 side. The two can be fitted together. The second drive slider 62b can be joined to the side surface of the head slider 36. Similarly, a T groove 64 is formed in the second slider 62b, and a T-section ridge 66 is formed on the head slider 36 side. Thus, both can be fitted. Therefore, as shown in FIG.
When the head slider 36 reaches the corner of the head traveling guide 28, the head slider 36 is connected to the first driving slider 62a and the second driving slider 62b, and is detached from one of the driving sliders 62a and 62b according to the traveling direction. ing. The drive sliders 62a and 62b are connected to independent drive wires and the like, and are driven to travel, and move the head clamp 26 appropriately.

On the other hand, the structure of the tail clamp 30 will be described with reference to FIG. The tail clamp 30 is disposed at the end of the run-out table 14, and the traveling guide 32 is formed of a C-channel material installed in parallel with the traversing table 23.
8 is mounted so that it can run. A balance arm 70 is attached to the tail slider 68, and a clamp body 72 is connected to one end of the balance arm 70.
And the clamp body 72 can be driven up and down. A clamp body 76 is attached to the clamp body 72. The clamp body 72 has an L-shaped opening / closing jaw 78 attached thereto and a pressing plate 80 for pressing the pressing member 16 from above.
Is installed. As a result, the tail clamp 30
Can travel along the transport direction by the traversing table 23 while gripping the tail portion of the pressing member 16. The travel drive may be performed by a drive cylinder 82 (see FIG. 7) attached to the tail travel guide 32.

As described above, the head clamp 26 and the tail clamp 30 are guided by the traveling guides 28 and 32, respectively.
It reaches two. For this reason, the first on the head side
The travel guide 28 b and the tail travel guide 32 are provided with the stretchers 24 arranged at both ends of the cooling table 22.
, And the extruded material 16 can be directly delivered to the stretcher 24 from the head clamp 26 and the tail clamp 30. That is, as shown in FIG.
The H and the tail chuck 24T have U-shaped stock portions 84H and 84T, respectively, and their openings are opposed to each other. Clampers 86H and 86T are provided inside the stock portions 84H and 84T. Travel guide 2
8b and the tail running guide 32 can move the head clamp 26 and the tail clamp 30 to the entrances of the stock portions 84H and 84T. In FIG. 7, a cooling device 88 is provided between the stretchers 24, and the extruded material 16 is cooled while both ends are gripped by the head clamp 26 and the tail clamp 30.

The operation of the extruded material post-surface treatment apparatus according to the above configuration will be described with reference to FIG. The extruded material 16 extruded from the end platen 10 of the extruder has its tail portion gripped by the puller 18 immediately after extrusion, and is pulled up onto the run-out table 14 in accordance with the extrusion speed (FIG. 8).
(1)). When the extrusion is completed, the head portion is cut by the shear 20. Immediately before this cutting process, the head clamp 26 is lowered from the first travel guide 28a and the extruded material 1 is cut.
6 is grasped (FIG. 2 (2)). Then, in cooperation with the puller 18, the extruded material 16 is transported along the extrusion line until the extruded material 16 is completely transferred to the run-out table 14 (FIG. 3 (3)). Extruded material 16 is run-out table 14
After being transferred to the upper side, the puller 18 releases the gripping of the tail portion of the extruded material 16, but before the release, the tail clamp 30 is released.
, The extruded material 16 is gripped, and both ends of the extruded material 16 are held by the clamps 26 and 30. Thereafter, the grip by the puller 18 is released, and the puller 18 returns to a predetermined position.

The extruded material 16 gripped at both ends by the clamps 26 and 30 is traversed by the traversing table 23. At this time, the head clamp 26 is in the state shown in FIG. Guide 28b
It is possible to move along. Therefore, the extruded material 16 is traversed by moving the clamps 26 and 30 to the side of the run-out table 14 in synchronization with the movement of the traversing table 23 (FIG. 4D). The extruded material 16 is cooled by the cooling device 88 with the clamps 26 and 30 conveying the extruded material 16 on the line of the cooling table 22, and cooled to a predetermined temperature. Hand over.
In this case, naturally, the end of the extruded material 16 is gripped by the head chuck 24H and the tail chuck 24T, and then the grip by the clamps 26 and 30 is released.

When the extruded material 16 is gripped by the head clamp 26 and the tail clamp 30 described above, the tension is constantly adjusted by a damper cylinder 52 mounted on the head clamp 26 so that the tension is constant. That is, although the holding force of the extruded material 16 is set by the hydraulic supply / discharge circuit 56, the applied tension varies due to the thermal contraction of the extruded material 16. At this time, since the electromagnetic relief valve 58 is set at a relief pressure corresponding to the holding force, the tension on the extruded material 16 is kept constant, and abnormal deformation of the extruded material 16 during conveyance is reliably prevented. Will be.

According to this embodiment, the extruded material 16 is held at a constant tension immediately after extrusion by the cooperation of the puller 18 and the head clamp 26, and the head clamp 26 is traversed from the run-out table 14 to the cooling table 22. And the tail clamp 30 is also held at a constant tension. Then, it can be delivered to the stretcher 24 as the final tempering step while maintaining the tension. Therefore, since the extruded material 16 is always gripped at both ends and given a predetermined tension immediately after extrusion, occurrence of abnormal deformation due to heat shrinkage during conveyance can be prevented, and product yield can be greatly improved. In addition, the straightening operation by the stretcher 24 can be automated.

[0026]

As described above, according to the present invention,
A head traveling means which includes head clamp means capable of gripping a head portion of the extruded material in cooperation with the extruded material puller, and guides the head clamp means along the extrusion line and guides the traverse laterally to the run-out table. A guide is provided, and a tail clamp means for gripping a tail portion of the extruded material gripped by the puller is provided, and a tail travel guide for guiding the run to the side of the run-out table is provided, and a head travel guide and a tail travel guide are provided. Is extended to the stretcher chucks installed at both ends of the cooling table on the side of the run-out table, and the extruded material can be delivered to the stretcher, so that deformation due to thermal shrinkage is reliably prevented even during the transfer of the extruded material. Deformation during post-processing until straightening work by stretcher It can be effectively prevented, and,
An excellent effect that automation (humanization) can be achieved is obtained.

[Brief description of the drawings]

FIG. 1 is a plan configuration diagram of a post-surface treatment apparatus for an extruded material according to an embodiment.

FIG. 2 is a front sectional view of a head clamp portion.

FIG. 3 is a side view of a head clamp portion.

FIG. 4 is a hydraulic circuit configuration of a damper cylinder.

FIG. 5 is an explanatory diagram of a direction switching portion of a head travel guide.

FIG. 6 is a front view of the tail clamp.

FIG. 7 is a side view showing a relationship between a clamp and a stretcher.

FIG. 8 is an explanatory diagram of a rear surface processing step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 End platen 12 Initial table 14 Run-out table 16 Extruded material 18 Puller 20 Shear 22 Cooling table 23 Traversing table 24 Stretcher 24H Head chuck 24T Tail chuck 26 Head clamp 28 Head traveling guide 28a First traveling guide 28b Second traveling guide 30 Tail clamp 32 Tail Travel Guide 34 Ceiling Beam Member 36 Slider 38 Head Plate 40 Lifting Cylinder 42 Head Body 44 Roller 46 Clamp Body 48 Jaw 50 Holding Plate 52 Damper Cylinder 54 Rod 56 Hydraulic Supply / Discharge Circuit 58 Electromagnetic Relief Valve 60 Amplifier 62a First Drive Slider 62b Second drive slider 64 T groove 66 T section ridge 68 Tail slider 70 Balance arm 72 Clamp body 74 lifting cylinder 76 the clamp body 78 opening and closing the jaws 80 pressing plate 82 driven cylinder 84H, 84T stock section 86H, 86T clamper 88 cooling device

Claims (1)

(57) [Claims] An extruded material puller is provided in cooperation with a head clamp means capable of gripping a head portion of the extruded material, and the head clamp means is guided along an extrusion line and traverses laterally to a run-out table. A head travel guide is provided for guiding, a tail clamp means for gripping a tail portion of the extruded material gripped by the puller is provided, and a tail travel guide for guiding the run to the side of the run-out table is provided. A post-processing device for an extruded material, wherein a guide and a tail running guide are extended to stretcher chuck portions provided at both ends of a cooling table on a side of a run-out table so that the extruded material can be delivered to the stretcher.