JPH057929A - Aluminum profile extrusion rear surface equipment and rear surface treatment method - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the idle time of the extruder in the aluminum profile extrusion rear equipment that drives the runout table. [Structure] The head side stock 24 of the cooling stretcher grips the head side of the profile transferred to the cooling table 4 and makes it movable until the tail side of the profile reaches the position of the tail 23 side of the cooling stretcher. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aluminum extruded profile (hereinafter referred to as a profile) rear surface treatment equipment and method, and more specifically, it relates to a runout table after extrusion of a profile. The present invention relates to a rear surface equipment and a rear surface treatment method for moving and cooling on a cooling table.

More specifically, the present invention is provided on an initial table attached to an extruder, a cooling table juxtaposed to a runout table, an initial shear, a puller, and a cooling table. And a cooling stretcher for improving the rear surface treatment equipment of a profile comprising the cooling stretcher and the rear surface treatment method.

[0003]

2. Description of the Related Art FIG. 9 is a perspective view showing an example of a type having two cooling tables in the above-mentioned system for treating the rear surface of a profile, and FIG. 10 is a plan view. In the figure, 1 is an extruder, 2 is a puller, 3 is a runout table, 4 is a first cooling table, 5 is a second cooling table, 6 is a stretcher headstock for stretching, and 7 is according to the length of the profile. Tail stock that moves and holds the end of the profile, 8 is the first transfer table between the second cooling table 5 and the storage table 9, 9 is a storage table for storing the stretched profile, and 10 is from the storage table 9. A second transfer table for transferring the shape members to the saw table 11, a cutting machine for cutting the shape members to a fixed length, a sizing machine 13, a saw gauge table 14, a third transfer table 15, Is an inspection table, and 18 is an initial shear (also referred to as a platen shear or a platen saw).

When the profile is cooled by the equipment shown in FIGS. 9 and 10, depending on the shape of the profile, both ends of the profile may rise from the surface of the second cooling table 5 when the cooling of the profile is completed. As both ends of the profile were twisted, it was difficult to catch the profile with the stock of the stretcher headstock 6 or the tailstock 7 as it was. In order to improve this, a cooling stretcher that holds the both ends so that the profile does not twist or fall during the process of cooling the profile and cools the profile while straightening it with a constant tension is installed on the first cooling table 4. Was prepared (see Japanese Patent Publication No. 55-18568).

Further, in the conventional rear surface treatment method in which the runout table 3 is driven, the profile is pulled by the puller 2 and after the profile is cut by the initial shear, the puller 2 releases the profile and at the same time the runout table is opened. Drive 3
The shape material is evacuated by several meters, which is equivalent to the length of the initial table 20. After the profile is transferred by the runout table 3 to a position where it can be transferred to the first cooling table 4,
The profile is transferred to the first cooling table 4. The rear surface treatment time from the above cutting to the transfer to the first cooling table is, for example, about 22 seconds, and the extrusion of the next profile cannot be performed during that time, which is the idle time of the extruder.

In another conventional rear surface treatment method, a process is carried out in which the profile material separated by the initial shear 18 is carried away by the puller 2 for the length of the initial table 20.
Compared with the method of driving the runout table, the stop positions at both ends of the profile will be stopped with extremely high precision, and the unmanned stretcher (6, 7) or cooling stretcher (not shown) stock will surely retain the profile. However, since the total time until the pulling out of the profile of the puller 2 and the completion of retreat is later than the idle time of the extruder, the idle time becomes long.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to an improvement in a backside treatment facility having a drive runout table. During the idle time of the extruder, it is effective to increase the speed of the runout table to, for example, about 80 m / sec in order to cut it by the initial shear, carry it away by the runout table, and transfer it to the cooling table. is there. However, when the speed of the runout table is increased, the accuracy of the stop position of the profile is deteriorated, and an error of ± 500 mm with respect to the target occurs. If the profile is transferred from the runout table to the cooling table with the error thus generated, the cooling stretcher cannot hold the profile and cannot perform the cooling stretch.

Therefore, the conventional method of providing the drive device on the runout table has a drawback that it is a carry-out method in which the stop position accuracy of the profile is poor, or the idle time of the extruder becomes long.

Therefore, according to the present invention, in the rear surface treatment equipment using the runout table as a drive system, the idle time for which the extruder is on standby is shortened when the profile is held for a length corresponding to the initial table, and the stopping accuracy of the profile is kept high. An object of the present invention is to provide a rear surface equipment and a rear surface treatment method capable of performing the rear surface treatment.

[0010]

A rear surface treatment facility according to the present invention includes an initial table attached to an extruder, a drive type run-out table, an initial shear, a cooling table provided in parallel with the run-out table, and a cooling table. In the rear equipment of a profile (aluminum extruded profile) including a cooling stretcher provided in the area of the table and a hanging type cooling stretcher provided on the cooling table, the head of the cooling stretcher. The side stock grips the head side of the profile transferred to the cooling table and is movable until the tail side of the profile reaches the position of the tail side of the hanging type cooling stretcher.

The feature of the rear surface treatment equipment of the present invention is the mechanism on the head side of the cooling stretcher, that is, the head side stock grips the profile material while the profile material is transferred to the cooling table to form the cooling table. The mechanism for pulling the profile has a length (for example, 1 m or more) corresponding to the variation value of the stop position (the value at which the position when the profile stops on the runout table deviates from the target value). This traction mechanism is provided on the head side of the cooling stretcher because the profile is moved as fast as possible on the runout table (the maximum speed at which the profile is not flawed, for example, 40%).
Since the profile is overrun, the head side is always sent before the normal position on the head side of the cooling stretcher, so it is necessary to return the profile to the normal position on the head side. Because there is. It is also conceivable to provide a stopper on the runout table to stop the profile forcibly, but this may not be possible because of the risk of defects such as the occurrence of defects due to the forced stop. The stop position of the material varies considerably due to the difference in its weight and the above mechanism is required.

In order to realize the above-mentioned traction mechanism, the stroke of movement of the cooling stretcher on the head side must be made significantly longer than the stroke for conventional stretching, and for example, a stroke of 1 to 1.5 m is required. Is. For this purpose, it is preferable to perform the movement of the head side stock of the cooling stretcher and the application of tension to the aluminum extruded profile during the cooling stretch by using the dual-purpose cylinder. A dedicated conveyor pulling mechanism may be provided on the headstock to pull the jaws and claws, but providing a dedicated device increases the cost.

Further, the head stock on the head side of the cooling stretcher must detect and hold the head side of the profile. As a method of this detection, there are a manual detection method and an unmanned detection method. As the latter, there are a method of attaching a detection means to the headstock and a method of providing a mechanical or electrical detection means on or under the cooling table. It is possible. In addition, in the method of attaching the detection means to the headstock, a long rod that interferes with the profile is attached to the stock via a spring, and when the tip of the rod hung from the headstock hits the profile, the spring is Allow the switch to work loose. Alternatively, the hydraulic cylinder may be attached to the stock so that the piston of the hydraulic cylinder hits the shape member to operate the switch by oil.

Next, in the system in which mechanical or electrical detection means is provided above or below the cooling table, a non-contact system such as ultrasonic wave, light, eddy current, etc. is formed in the expected region where the head side of the profile stops. It is possible to provide a material edge sensor or to provide a limit switch that contacts the profile.

In the rear surface treatment equipment of the profile of the present invention, the head side stock of the cooling stretcher that grips and moves the profile can be of a suspension type in which it is located above the cooling table. Further, claws that can move over a length of 1 to 1.5 m, which is the moving distance of the head-side stock, are provided above and below the cooling table, respectively, and the pair of claws grips the profile. You may do it.

On the other hand, the tail stock moves a lot, for example, a few ten meters due to the change of the extrusion length of the profile, so that the tail stock runs under the cooling table and is held on the table when gripping the profile. In the case of a system that puts the head in the position, it is difficult to pull the profile because the stock on the tail side interferes with the rollers of the cooling table and the cooling fan. Therefore, according to the present invention, the tail side of the cooling stretcher needs to be a so-called hanging system, that is, the movable part (jaw, claws, etc.) of the cooling stretcher is located above the cooling table for traveling.

After the head-side stock of the cooling stretcher of the present invention is returned to the normal position, the head-side stock and the tail-side stock are gripped to perform the cooling stretch.

A preferred method for unmanning the rear surface treatment equipment of the present invention is to generate a command to start driving the runout table after cutting the profile by the initial shear, and a command to return the puller to the extruder after this command. And a means for generating a command to transfer the profile from the runout table to the cooling table after confirming that the puller has started to return.

Further, the method for treating the rear surface of a profile according to the present invention is
After cutting the profile on the initial table and runout table with the initial shear, drive the runout table to let the profile run for more than the length of the initial table, and then transfer the profile to the cooling table for cooling. The head side stock of the stretcher is moved close to the head side of the profile, and the head side stock of the cooling stretcher grips the head side of the profile, and the tail side of the profile is suspended by the head side stock. The feature is that the profile is pulled until it reaches the position on the tail side of the letcher, and then the profile is stretched by a cooling stretcher.

Immediately after the completion of cutting with the initial shear,
That is, it is preferable to start the return of the puller toward the vicinity of the extruder within 1 second. In this case, the puller returns to the waiting position in the shortest time, so that the idle time is greatly shortened.

When the profile is being pulled by the puller, the runout table causes the rollers to rotate with the movement of the profile or in synchronization with the extrusion speed, and at the maximum speed allowed after the pulling of the puller is completed. Drive the runout table. The stop will ensure that both ends of the profile match the ends of the cooling stretcher as much as possible, but due to the inertia of the profile and the rollers, the profile will be significantly advanced.
In this state, the profile is transferred from the runout table to the cooling table.

After that, the profile is pulled by the head side stock of the cooling stretcher which is a feature of the present invention. At this time, since the shape material moves on the free roller table, the roller is preferably made of soft felt, heat-resistant glass or the like. When the profile returns to a position where it can be cooled and stretched, substretching and forced cooling are performed as usual. After the cooling stretch is completed, the stock on the head side and the stock on the tail side are released, and then the stock on the head side is advanced by the full stroke and waits.

[0023]

In the conventional rear surface treatment equipment, the cooling stretcher has only a sub-stretching function, but in the present invention, the head side stock has a function of pulling the profile toward the extruder side on the cooling table. . The runout table has a high-speed carry-out function. These will remove the runaway feature from the puller,
Moreover, the profile can be delivered to the cooling stretcher with high accuracy.

[0024]

Embodiments of the present invention will be described in detail below with respect to equipment having two cooling tables, and then one cooling table as disclosed, for example, in Japanese Patent Publication No. 2-42564 of the present applicant will be described. An example of a certain equipment will be described.

FIG. 1 is a plan view showing the overall layout of the rear surface treatment equipment of the present invention. A new cooling stretcher for the rear surface treatment equipment of FIG. 9 and FIG. It is equivalent to one with a function. Two
Reference numerals 3 and 24 are a tailstock and a headstock of the cooling stretcher 22, respectively. FIG. 2 is a drawing of the rear surface treatment equipment seen from the extruder side, and particularly shows a hanging type cooling stretcher and its peripheral devices.

First, regarding the puller 6 and its accessory device,
Reference numeral 25 is a puller arm, 26 is a puller rail for moving the puller arm 25 through bearings, and 27 is a puller arm 2.
5 is a storage unit fixed to 5, 5 is a blade (also referred to as a claw) housed in the storage unit 27 so that an arbitrary number of blades can be moved back and forth according to the shape of the shape member, and 31 is a support frame for supporting the whole. It is a structure. Reference numeral 32 is a fan for forcibly cooling the profile on the runout table 3. The runout table 3 is configured by a large number of drive rollers, or by alternately arranging free rollers and drive rollers or by appropriately arranging each group of rollers. In the following description, it is assumed that the driving roller 35 is entirely used.

Drive roller 35 of runout table 3
The belt conveyor 36 of the first cooling table 5 is provided at the position. The wheel 37 around which the belt conveyor 36 is wound at one end is used for the runout table 3
Is in a sunk position as shown in the drawing during operation, and when the profile is transferred to the first cooling table 4, the belt conveyor 36 is lifted to a horizontal position (see a thin line) to receive the profile from the drive roller 35, Wheels 37, 39
The profile is moved to the outside of the runout table 3 by the rotation of.

A large number of belt conveyors 36 are arranged from the head side to the tail side of the rear surface treatment facility. Reference numeral 40 is an air cylinder, 41 is a piston rod connected via a joint, and 42 is an elevating rod. By these, the position of the belt conveyor 36 is elevated before and after the transfer of the profile. A free roller table 30 made of a fixed heat-resistant felt is provided in the middle of each belt conveyor 36 so as to be able to move up and down, and is fixed to a cylinder 37 that moves up and down. The cylinder 37 operates so that the free roller table 30 is higher than the first cooling table 4 when the profile is towed, and is lower than the first cooling table 4 at other times.

Next, the cooling stretcher will be described. Reference numeral 45 is a beam that suspends the entire cooling stretcher, and 46 is an upper cooling fan that cools the profile.
47 is a blade (also called a claw), 48 is a blade 4
7 is a storage part, 49 is a rail that suspends 47 and 48 on a beam 45, and 50 is a lower cooling fan that cools the profile.

The profile is an initial shear 18 (see FIG. 1).
When the blade is cut by, the blade 28 of the plastic-2 releases the profile, and then the driving roller 35 is driven to carry the profile away at a high speed. Further, after the cutting is completed, the belt conveyor 36 rotates upward around the wheel 39 to the horizontal position. The profile that has stopped traveling on the drive roller 35 is transported by the belt conveyor 36 to below the cooling stretcher as shown in FIG.

Subsequently, the cylinder (FIG. 3) of the headstock 24 (FIG. 1) is operated to grip the head side of the profile. In FIG. 3 and FIG. 4, the tailstock 23 suspended on the rail 49 is a blade 47 suspended from a drive wheel 62 connected to a motor 60 via a transmission 61 and a support base 64 carrying a wheel 63. And storage 48
The profile 70 can be gripped by the. 6
Reference numeral 4 denotes a lock cylinder that locks the drive wheel 62 after the tailstock 23 has moved to the end of the profile 70.
On the other hand, the head stock 24 holds the end portion of the profile 70 on the head side by the cylinder 66, pulls the profile 70 on the cooling table, and then further tail stock 2
It is configured so that tension can be applied to the profile 70 between the 3 and 3.

The headstock 24 is the head side of the profile,
As shown in the figure, the blade 47 is gripped and moved to the extruder side by, for example, about 1 m, and the profile is dragged on the heat-resistant felt roller table. During this time, the blade on the tail side 23 (FIG. 1) of the cooling stretcher is in a state where the entire blade is housed in the storage portion, so that the shape member moves without interfering with the tail stock. After moving to the cooling stretch start position, stretching can be performed by applying tension to the profile. The method of applying the tension is not particularly limited, and a method of applying a constant tension (see Japanese Patent Publication No. 2-42564),
It is possible to adopt a method of keeping the strain constant or a method of keeping the length of the shape member constant.

FIG. 11 shows an embodiment in which the head side stock of the cooling stretcher is made to run on the floor 50 of the building. In the figure, 51 is a base fixed to the floor,
Reference numeral 52 is a cylinder fixed to the base, and reference numeral 54 is the drive of the cylinder 52 to rotate the wheels 53 to cause the base 51
A dolly traveling above, 55 is a U-shaped headstock main body fixed to the dolly 54, 56a and 56b are claws, 57 is a fixed part which is fixed to the claw 56a and is lifted and lowered by a piston rod 58, and 9 is a cylinder. is there.

In the range L in which the head stock 24 pulls the profile 70, for example, 1 m, there is no cooling table 6 or rollers 72 for lifting the profile. Therefore, the headstock 24 travels in this range L and lifts and holds the profile 70 above the cooling table.

Subsequently, the flowchart of FIG. 5 and FIG.
The back surface treatment method of the present invention will be described in detail with reference to the time chart of FIG. 1. Extruder Extrusion is performed from ◆ to ◆ in FIG. Idle time of the extruder is as follows: 1) From the end of extrusion until the billet loader descends 1
7 seconds 2) From the end of extrusion to the completion of the barf cycle ..... 22
Seconds.

2. Immediately after the initial shear extrusion is completed, the initial shear cuts the profile. The required operation time is as follows (see FIG. 6). 1) Standby by the advance of the initial shear just before the end of extrusion 2) Lowering of the cutting blade 3 seconds 3) Ascent of the cutting blade 3 seconds 4) Retreating outside the interference of the initial shear and puller ...・ ・
6 seconds

3. The puller pulls the profile by wire pulling during extrusion and advances. When the cutting of the initial shear starts at the end of extrusion, pulling by the puller is no longer necessary, so jaws (holding part that bundles the claws) and claws are opened (2
Seconds). After the jaw opening and the claw opening are completed, the puller starts retreating. After the retreat is completed, the jaw and claw are closed. Up to 20 series of movements from puller retraction to jaw jaw closing
Must be done in seconds. In FIG. 6, a series of these operations is performed in 20 seconds.

4. Runout table Run the runout table at high speed after completion of cutting at the initial shear, and carry away the profile (9 seconds)
Then, the profile stops overrunning over the fixed position. The runout table rotates synchronously with extrusion during extrusion of the profile (except for the initial 2 seconds of extrusion).

5. 1st cooling table The 1st cooling table
The rod 42 that moves up and down the cooling table 5 rises and the tables of the first cooling table 5 simultaneously rise (2 seconds), and then the belt conveyor 36 rotates to transfer the profile from the runout table to the first cooling table. To do. Subsequently, the cylinder 37 moves up and the free rollers of the first cooling table move up all at once, so that the profile is supported by the free roller and the rollers.
When the profile pulled by the headstock moves on the free roller table and the headstock returns to the normal position, the cooling stretch starts. The roller that has risen as described above descends before the profile is transferred from the runout table.

6. Second Cooling Table When the belt conveyor 36 (FIG. 2) of the first cooling table rotates, the belt conveyor of the second cooling table rotates synchronously via the wheel 39.

7. Cooling Stretcher Headstock (See Figures 5 and 6. Referred to as "tail" in this section and the next section.) When the belt conveyor of the first cooling table stops, the head moves to detect the head end of the profile. (Or move to the position of the tip of the detected profile),
Next, the jaws and claws of the head are closed and the profile is grasped. The headstock closes and returns to the origin while holding the profile.
When the head side cylinder moves to the stroke forward limit, the head stock has returned to the origin. After that, when the tail stock grips the tail side of the profile, the profile cooling fans 46 and 50 are operated, and tension is applied to the profile that is heat-shrinked as the profile cools. After the tension is released, wait for the jaws and pawls on the tailstock side to open, move in the direction opposite to the expansion and contraction of the profile due to tension application, the head side cylinder returns to the origin, and then the head side jaws and pawls Is released.

8. Cooling stretcher tail (see Figures 5 and 6; referred to as "head" in this and the next section). After the head side returns to the fixed position, the tail and the head apply constant tension to both ends of the shape member, and the shape members are cooled by the fans provided above and below the cooling stretcher. After releasing the tension, the tail releases the jaw and claw. To cool and stretch the next profile, the tailstock position is moved according to the length of the profile. The direction and distance of movement are determined by the data that the puller measures the total length of the profile for each extrusion and sends to the cooling stretcher.

9. Cooling Stretcher Set the air volume for each fan shape and cool during cooling stretch. 7 and 8 show an example in which the present invention is applied to a rear surface treatment facility having one cooling table, and each device is indicated by the same reference numerals as those in FIGS.

[0044]

As described above, according to the present invention, the following effects can be achieved. Since the runout table is driven at a high speed, the puller can be immediately returned to the extruder and the idle time of the extruder can be shortened because the puller does not run away. Further, by providing the head side of the cooling stretcher with a function of correcting the variation in the position of the tip of the shape member, cooling stretching and stretching can be made unmanned.

[Brief description of drawings]

FIG. 1 is a plan view of a rear surface treatment facility according to an embodiment of the present invention.

FIG. 2 is a diagram showing a main part of a rear surface treatment facility according to an embodiment of the present invention.

FIG. 3 is a side view showing a tension applying mechanism of the coolin stretcher.

FIG. 4 is a partial bottom view of FIG.

FIG. 5 is a diagram showing an operation sequence of a cooling stretcher in the rear surface processing method according to the embodiment of the present invention.

FIG. 6 is a time chart of the rear surface processing method according to the embodiment of the present invention.

FIG. 7 is a view showing a main part of a rear surface treatment facility according to another embodiment of the present invention.

FIG. 8 is a plan view of FIG.

FIG. 9 is a perspective view of a conventional rear surface treatment facility.

FIG. 10 is a plan view of a conventional rear surface treatment facility.

FIG. 11 is a diagram showing an example of a headstock of a cooling stretcher.

[Explanation of symbols]

1 extruder 2 pullers 3 runout table 4 1st cooling table 5 Second cooling table 6 Stretcher headstock 7 tailstock 8 First transfer table 9 Storage table 10 Second Transfer Table 12 cutting machine 13 Sizing machine 14 Saw gauge table 15 Third Transfer Table 16 inspection table 30 free roller table

Claims (4)

[Claims] 1. An initial table attached to an extruder, a drive-type runout table, an initial shear, a cooling table provided in parallel with the runout table, and a head-side cooling stretcher provided in the area of the cooling table. In the rear equipment of the aluminum extruded profile, which includes a suspension type tail side cooling stretcher provided on the cooling table, the head side stock of the cooling stretcher is transferred to the cooling table. The equipment for extruding aluminum profile rear surface, characterized in that the head side of the profile is gripped and the tail side of the aluminum extrusion profile is movable until it reaches the position of the tail side of the cooling stretcher. 2. The aluminum profile extrusion rear surface equipment according to claim 1, wherein movement of the head side stock of the cooling stretcher and application of tension to the aluminum extrusion profile during cooling stretch are performed by a dual-purpose cylinder. 3. The aluminum profile extrusion rear surface equipment according to claim 1, further comprising a device for detecting a head side position of the aluminum profile on the cooling table. 4. The aluminum extruded profile on the initial table and runout table is cut by an initial shear, the aluminum extruded profile is driven by the runout table for a length of more than the length of the initial table, and then aluminum extruded. The profile is transferred to a cooling table, the head side stock of the cooling stretcher is moved close to the head side of the aluminum profile, and the head side stock of the cooling stretcher is held by the head side stock of the cooling stretcher. The head stock pulls the aluminum extruded profile until the tail side of the aluminum extruded profile reaches the tail side position of the cooling stretcher, and then the aluminum stretched profile is cooled and stretched by the cooling stretcher. A method for treating the rear surface of an aluminum extruded profile, the method comprising: