JPH08155539A - Rear surface apparatus for aluminum shape material extrusion and rear surface treating method - Google Patents

Abstract

PURPOSE: To execute the cut-off operation at a first and a second saw charging tables without mutual interference by arranging a transferring device passing an extruded shape material through above the first saw charging table at the interval between a storage table and the second saw charging table. CONSTITUTION: The transferring device 70 is hung down to the beam 34 of a building and the shape material is shifted from the first storage table 9 to the second storage table 19 through above the first saw charging table 11. The saw charging tables 11, 21 are free-rollers and further, provide driving parts composed of belt conveyors driven with motors on the way of the saw charging tables and just before cutting off. The shape material is cut off with a cutting machines 12, 22 in the condition of feeding the tip part of the shape material to a stopper 36 for fixed length of the shape material. Two sets of the apparatuses needed to execute the cut-off to the fixed length are parallel arranged so as to execute the cut-off operation of the shape material without mutually interference with the other apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear surface equipment in an aluminum extrusion profile production facility, and more particularly to a rear surface equipment and a rear surface treatment method in which a cutting method is improved.

[0002]

2. Description of the Related Art As for the rear equipment of an aluminum extruded profile (hereinafter referred to as "profile"), as described by the applicant in Japanese Patent Laid-Open No. 5-7929, the extruded profile is placed on a runout table. It is a facility that performs a series of refining processes such as drawing out, cooling on a cooling table, stretching, cutting to a fixed length, and inspecting the cut profile.

FIG. 2 shows an example of a conventional rear equipment having two cooling tables. In the figure, 1 is an extruder, 2 is a puller, 3 is a runout table, 4 is a first cooling table, and 5 is a second cooling. Table, 6 is stretcher headstock, 7 is tailstock, 8 is first transfer table, 9 is storage table, 10 is second transfer table (A), 11 is saw charge table, 12 is cutting machine, 14 Is a saw gauge table, 15 is a third transfer table, and 16 is an inspection table. Such rear equipment is designed on the assumption that three or more billets are extruded per die, and an average of 5 to 6 billets are extruded.

Since then, the number of extrusion billets per die has decreased, the applicant of the present invention has filed Japanese Patent Application Laid-Open No. 3-29.
In Japanese Patent No. 1114, there is a problem that in the case of high-mix low-volume production in which single extrusion of a billet is continued several times, the cutting time cycle becomes longer than the extrusion time cycle, which causes the extruder to stop. For this reason, we have proposed a rear equipment in which two or more cutting machines are arranged on one saw table. According to this rear surface equipment, it is possible to cut simultaneously on the same saw table by the number of cutting machines,
The cutting time cycle can be shortened.

[0005]

In recent years, high-mix low-volume production has further progressed, and the ratio of extrusion billets per die being 2 or less has reached nearly 50% of the total production.
On the other hand, the idle time of the extruder is about 2 times that of the conventional machine due to high-speed extrusion by improving the billet and improving the performance of the extruder.
It was reduced from 3 seconds to about 15 seconds. Also, the die change time has been greatly reduced by adding a die changer.

FIG. 3 is a time chart for explaining the stoppage of the extruder that occurs in the actual production facility in the above-mentioned situation. As the extrusion conditions, the average profile extrusion speed is 50 m / min; 1m on both ends is scraped from the crushed puller chucking; the conditions are set so that the remaining non-defective products, 8m to 8m, are 8 standard lengths. 1
It takes 22 seconds to cut 8 times, so Tc1 for 8 times
= 22 × 8 = 176 seconds is required. As a result, the extruder is stopped for 129 seconds to wait for cutting.

Japanese Patent Application Laid-Open No. 3-29111 proposed by the present applicant
In the embodiment of the rear equipment in which two or more cutting machines according to Japanese Patent Publication No. 4 are installed on the same saw charge table, the cutting time for taking eight 6-meter fixed-length shaped members is Tc2 = 189 seconds, and one billet The extrusion time is 300 seconds. Therefore, in the cutting of the publication, waiting for cutting can be avoided for extrusion of 300 seconds, but if the same method is applied to the time chart of FIG. 3, a cutting waiting time of 94 seconds (extruder stop time) occurs. .

Therefore, since the extrusion speed is now higher than that of 1990 when the above-mentioned publication was filed, and the extrusion time cycle was remarkably shortened due to the use of a die changer, even if the cutting method of the above-mentioned publication was adopted. It can be said that the cutting is still in time for the extrusion.

The present inventors use a fixed cutting machine and a movable cutting machine in combination in the cutting method of the above publication to drive them at the same time, and also in accordance with a change in the length of 3 m to 6.5 m. Since it is structurally impossible to add an additional movable cutting machine whose position changes, it has been clarified that the cutting time is long and the current high efficiency extrusion as described in paragraph (0005) cannot be supported. We devised a cutting method that is fundamentally different from the method.

[0010]

An aluminum profile extrusion rear surface equipment according to the present invention comprises a runout table attached to an extruder, a cooling table and a storage table provided in parallel with the runout table, and a profile cutting. A rear surface equipment for extruding an aluminum profile, including a saw charge table (hereinafter referred to as "first saw charge table") and a saw gauge table (hereinafter referred to as "first saw gauge table") equipped with a machine, One or more second saw charge table and second saw gauge table provided with another shape cutting machine are provided in parallel with each of the one saw charge table and the first saw gauge table, and the storage table and the second saw gauge table are provided. Transfer the extruded profile between the saw charge tables to pass above the first saw charge table. In which it characterized in that a device.

Further, the rear surface treatment method according to the present invention is improved so as not to stop the extruder due to waiting for cutting when the extrusion of one or two billets is continuously performed twice or more with one die. In the extrusion cycle, the extruded profile is stretched, and the work including cooling die exchange, puller chucking and profile extrusion on the cooling table is performed in about 199 seconds or less. The billet is continuously extruded twice or more, and the extruded profile is cooled and stretched, cooled to room temperature on the cooling table, stretched, and then transferred to the saw charge table and stretched. Approximately 100 to about operations including cutting, standard length cutting, and delivery of cutting profile
In the post-processing method for post-processing aluminum profile extruding a cutting cycle of 250 seconds, the first extruded profile is transferred from the storage table to the first saw charge table provided with a profile cutting machine, and the first saw charge is applied. The second extruded profile of a different type from the first extruded profile passes through the second saw charge table, which is attached in parallel with the table and is equipped with another profile cutting machine, passes above the first saw charge table. The transfer device is used for transfer, and the cutting cycle is performed with the first saw charge table and the second saw charge table.

[0012]

The function of the rear equipment has to be increased because the speed of the extruder has recently increased more than expected by the two-cutting machine proposed by the applicant. Therefore, a cutting machine was selected as a target for efficiency improvement in the rear equipment and its capacity was increased. If the first saw charge gauge table and the second saw charge gauge table are provided, the cutting ability should be proportional to the cardinal number, but in order to minimize the time loss due to the transfer of the profile to the latter, Was transferred above the first saw charge table so that the cutting can be started immediately after the transfer. Specifically, the transfer time is preferably 20 seconds or less. Not only in terms of efficiency, but also because the bending due to the weight of the profile, which extends over several tens of meters, cannot be ignored, the parallel arrangement and transfer device were adopted to minimize bending. further,
Due to the parallel arrangement, inspection and pallet loading can be performed on the saw charge table at the same place or at a distance from each other, but within a range that can be handled by the same number of workers as in the conventional case (claim 1).

The method according to claim 6 relates to a preferable operating method of the rear equipment according to the present invention in the case of high-speed extrusion in a high-mix low-volume production. That is, the work including the die change, puller chucking and profile extrusion is performed in about 199 seconds or less in the example of profile extrusion of 50 m. The extrusion cycle depends on the use of high-speed extrusion billet, drive runout table, etc. However, if the extrusion of 1-2 billets per die continues twice or more in such equipment, the extruder stop time due to waiting for cutting will be longer, and the equipment will operate. The rate decline becomes serious. The stretching and cooling on the cooling table, which are included in the refining work after extrusion, are generally 1 minute to 10 minutes.
It takes minutes. These operations, the transfer to the saw charge table, the cutting of the stretch allowance, the cutting of the fixed length, and the delivery of the cut profile have been shortened by the improvements made by the applicant of the above-cited Japanese Patent Application Laid-Open No. 5-7929. But about 100
~ 250 seconds.

In such a rear surface treatment method, the improvement of the present invention is that the extruded profile is transferred from the storage table to the first saw charge table provided with a profile cutting machine to perform cutting, and the first saw charge is applied. The extruded profile is transferred to and cut by a transfer device that passes above the first saw charge table onto a second saw-charging table that is provided with another profile cutting machine that is installed in parallel with the table. The cutting cycle is being performed on both the first saw charge table and the second saw charge table. According to this method, cutting with the first and second saw charge tables can be carried out independently of each other, so that cutting of profiles of different types having different extrusion dies can be shared by different saw charge tables. it can. As a transfer method, transfer in a lateral direction with a short transfer distance can be adopted to shorten the transfer time.

By processing the high-quality profile whose bending is reduced by the stretcher process (claims 2 and 3) in this facility, it becomes possible to produce the high-quality profile with high efficiency.

If a cooling fan for cooling the hot section is provided adjacent to the runout table (claim 4), it is possible to prevent the corrugation of the upper surface due to the cooling of only one side (lower surface side). Similarly, the cooling fan attached to the transfer device can eliminate the waviness and bending of the upper surface of the shape member (claim 5).

[0018]

Embodiments of the present invention will be described below with reference to FIGS. 4, 5, 6 and 1 in which the conventional rear equipment of FIG. 2 is provided with cutting equipment of the present invention. In FIG.
Reference numeral 9 is a storage table shown in FIG. 2 (hereinafter referred to as “first storage table”), and 11 is a saw charge table (first saw charge table), and 12
Is a cutting machine, and 14 is a saw gauge table (first saw gauge table). In the present invention, the second saw charge table 21 and the second saw gauge table 24 are provided in parallel with the first saw charge table 11 and the first saw gauge table 14, and the cutting machine 22 dedicated thereto is provided. Is.

FIG. 5 is a plan view showing details of the first and second saw charge tables. Each of these saw charge tables 11 and 21 has a large number of supporting and transporting mechanisms for the shape members each including three rollers 31 as a set, and a belt conveyor 32 made of felt is interposed between them. The roller 31 is a drive roller, and has a width that allows several pieces, preferably three or more, to be arranged. Three
Reference numeral 3 is a belt conveyor with a drive source that causes the shape material to enter the saw gauge table. Reference numeral 34 is a building beam.

The movement of the profile to the first saw charge table 11 is performed by a belt conveyor provided in the vicinity of the first storage table 9 as in the conventional case, and the second transfer table (A).
10 (see FIG. 2). In order to enable movement of the profile to the second saw charge table 21,
A transfer device 70 is provided above the first saw charge table 11.
(See FIGS. 1 and 8). This transfer device 70
Is hung from the beam 34 of the building and moves the profile from the first storage table 9 to above the first saw charge table 11 to the second storage table 19.

The cutting machine installed on the right side of FIG. 5 and the devices around it are shown in the plan view of FIG. 6 and the front view of FIG.
The saw charge tables 11 and 21 are free rollers, and a belt conveyor 29b driven by a motor 29a in the middle of the saw charge table and immediately before the cutting machine.
Is provided with a drive unit. With these driving units, the tip end of the profile is sent to the profile sizing stopper 36a of the saw gauge tables 14 and 24, and the profile is cut by the cutting machines 12 and 2.
Cut at 2.

First and second saw gauge tables 14, 24
Consists of a conveyor that is driven by a chain. Stopper 36a (see Fig. 7) for determining the length of the profile cut.
Are provided on the respective saw gauge tables 14 and 24. Further, there is provided a profile fixed position stopper 36b for stopping the feeding of the profile.

As described above, in the present invention, two sets of equipment necessary for performing the standard length cutting are provided in parallel,
Each of them cuts the profile regardless of other equipment. In addition, the following facilities are provided to facilitate the inspection and transportation of profile materials. First, the device 42 for supplying a spacer to be sandwiched between the steps when stacking the shape members in multiple stages drops the spacers on the chain conveyor at regular intervals and conveys them to a fixed position on the chain conveyor.
It has a function. The moved spacer has a function of receiving the spacer again after being supplied at a fixed position below the inspection table 43. Next, the inspection table 43 is also provided at one place beside each of the saw gauge tables 14 and 24 so that the defect of the profile or the defective cutting can be inspected immediately after the cutting.

Reference numeral 47 denotes a profile transfer device such as a crane and a hoist, which transports the profile on the inspection table to the pallets 46a to 46d together with the spacer.

With reference to the side view of the rear equipment according to the present invention (equipment view as seen in the length direction of the profile-FIG. 1) and the plan view showing the apparatus arranged below the conveyor line (FIG. 8) ,
Further, an embodiment of the present invention will be described.

As shown in FIG. 1, the runout table 3, the first cooling table 4, the second cooling table 5, the first transfer table 8, the stretcher 50, the first storage table 9, the second transfer table ( A) 1
0, the first saw charge table 11, the second storage table 19, the second transfer table (B) 10 ′, and the second saw charge table 21 are arranged in order.

The detailed structure of the rear equipment will be described below in the order of arrangement of the above devices. As shown in FIG. 8, the runout table 3 is configured by arranging a large number of rollers 3a in a straight line, and some of the rollers 3a are driven. Above the runout table 3, Japanese Patent Laid-Open No. 5-79 of the present applicant.
A puller 51 showing a detailed structure is arranged in FIG. Instead of this puller, a double rail type double puller, which has one puller on one rail and is alternately used, may be arranged for the purpose of eliminating the puller return time waiting loss.

Similarly, FIG. 2 of JP-A-5-7929.
The first is the cooling stretcher 52, which shows the detailed structure on the
It is arranged above the cooling table 4 and beside the runout table 3. During the cooling stretch, the profile is cooled by an upper fan (not shown) and a lower fan 53, and after cooling and stretching is completed, a free roller-
54 and the 1st cooling table 4, and it is left to cool. In order to laterally convey the profile from the runout table 3 to the second cooling table 5 via the first cooling table 4, a motor, a wheel,
The 1st conveyor apparatus 60 comprised by a chain is provided.

The second cooling table 5 is formed by a lower cooling fan 61 (not shown in FIG. 1) and an upper cooling fan 62, which blow cooling air to the profile through the gaps between the rails forming the table. The material is forcibly cooled, and the conveyor material 63 laterally feeds the material.

It is not necessary to stretch the profile which has been cooled to 70 ° C. or lower by the cooling stretcher 52 and cooled and stretched by the stretcher 50, but other profiles are sufficiently cooled on the cooling table and then stretched. to correct. The first transfer table 8 is a belt conveyor and has an extension portion 8a that is pulled toward the cooling table when the tailstock of the stretcher moves according to the length of the profile.

The first storage table 9 is composed of a belt conveyor which is also suitable for temporarily storing the profile. It should be noted that the conveyor of the first transfer table and the conveyor of the first storage table 9 are simultaneously operated for the lateral material transfer from the second cooling table 5 to the first storage table 9 via the first transfer table 8. be able to.

From the first storage table 9 through the second transfer table (A) 10 to the first saw charge table 11
Traverse the profile up to. 1st saw charge table 11
The shaped material transferred to (1) is sent in the vertical direction by a belt conveyor with a drive 33 between the free rollers 11a and cut to a fixed length.

The transfer device 70 provided for transferring the profile to the second saw charge table 21 is the beam 34 of the building.
It is provided by a suspension method and conveys the profile from the first transfer table 9 to the second storage table 19 via the upper part of the first saw charge table 11. Transfer device 70
The detailed structure of will be described with reference to FIG.

FIG. 9 is a drawing of the transfer device 70 seen from the direction in which the cross section of the beam 34 appears. A bearing and a shaft (not shown) are slid between the suspension part 73 and the support part so that the entire transfer device 70 can move in the direction perpendicular to the paper surface along the support part 72 fixed to the lower part of the beam 34. It is arranged as possible. In addition, the traveling rotary shaft 74 is rotatably passed through the hanging portion 73,
The pinion fixed to this rotates with respect to the rack fixed to the lower end of the support portion 72, so that the hanging portion 73 moves integrally.

In order to take out the profile from the first transfer table 8, a large number of vertical racks 75 are rotated up and down, and the profile is scooped by an L-shaped hook portion provided at the tip of the vertical rack 75. , Then profile the second storage table 1
Hand over to 9. A cooling fan is preferably attached to the transfer device 70.

FIG. 10 is a time chart when the extrusion is carried out under the same conditions as those mentioned in FIG. 3 by the above-mentioned rear equipment.
Shown in In this chart, the cutting time per cutting equipment is 224 seconds, which is the same as the conventional equipment of FIG. 3,
Since the difference between twice the extrusion time of 95 seconds and 190 seconds is 34 seconds, ideally, the extruder stop time can be shortened to just under 34 seconds. However, in reality, the second cutting equipment starts cutting after the transfer time by the transfer device 70, so even if this transfer time is estimated to be 20 seconds, it is possible to reach the second storage table during cutting and the extruder is stopped. The time does not exceed 34 seconds, and the cutting waiting time can be significantly shortened as compared with the conventional method.

The second saw charge gauge table is 1
Although examples of groups have been described, it will be appreciated that more than one example will have increased cutting capability with less or no extruder downtime.

In the above-mentioned rear equipment, when a large number of extrusions per one die continue, even when the cutting is performed by the first cutting equipment, the extruder stop time is short. FIG. 11 shows a time chart similar to FIGS. 3 and 10 in the case of triple extrusion. Than this 3
When the die is replaced after the main extrusion, it can be understood that the waiting time can be extremely shortened by cutting the three shape members once with the first cutting equipment.

Further, although it is rare in the recent operation, when the number of extrusions in one die is extremely large and exceeds the width of the saw charge table, the cutting of the profile is divided between the first and second saw charge tables. By doing so, the waiting time for cutting can be reduced.

[0040]

As described above, according to the present invention, the rear equipment of the aluminum profile extrusion can be adapted to the small-volume production of other kinds in recent years. Also, even if the product type is changed to mass production of the same product type according to the production plan, it is easy to handle. Further, when a cooling fan is attached to the profile transfer equipment, waviness and bending of the profile are eliminated (claims 5 and 7).

[Brief description of drawings]

FIG. 1 is a side view of a rear equipment according to the present invention (an equipment view seen in a length direction of a profile).

FIG. 2 is an explanatory view showing an embodiment in which a cutting equipment according to the present invention is provided in a conventional rear equipment.

FIG. 3 is a time chart of a conventional extrusion equipment.

FIG. 4 is a plan view showing an arrangement of a part of the rear equipment in the present invention.

FIG. 5 is a plan view showing details of first and second saw charge tables in the present invention.

FIG. 6 is a plan view showing the refining / inspection after cutting the first and second saw gauge tables and the inspection table in the present invention.

FIG. 7 is a front view of the cutting equipment.

FIG. 8 is a plan view showing an apparatus arranged below the profile of the rear equipment in the present invention.

FIG. 9 is a diagram of a transfer device.

FIG. 10: 2 per die in the rear equipment of the embodiment of the present invention
It is a time chart which extrudes the shape of a book.

FIG. 11 is a time chart for extruding three profile members per die in the conventional rear equipment.

[Explanation of symbols]

 1 Extruder 2 Puller 3 Runout Table 4 1st Cooling Table 5 2nd Cooling Table 6 Stretcher Headstock 7 Tailstock 8 1st Transfer Table 9 1st Storage Table 10 2nd Transfer Table (A) 10 '2nd Transfer table (B) 11 1st saw charge table 12 Cutting machine 14 1st saw gauge table 15 No. 3 Transfer Table 16 Inspection Table 19 Second Storage Table 21 Second Saw Charge Table 24 Second Saw Gauge Table 29 Belt Conveyor 34 Beam 36 Stopper 42 Spacer Supply Device 50 Stretcher 70 Transfer Device 72 Bearing Part 73 Suspended Part 74 Travel Rotating shaft 75 vertical rack

Claims (7)

[Claims] 1. A runout table attached to an extruder, a cooling table and a storage table provided in parallel with the runout table, and a saw charge table attached with a profile cutting machine (hereinafter referred to as "first saw charge table"). And a saw gauge table (hereinafter, referred to as “first saw gauge table”), in a rear surface equipment for aluminum profile extrusion, in parallel with each of the first saw charge table and the first saw gauge table, The second which attached another shape cutting machine
Saw charge table and second saw gauge table 1
Rear equipment for extruding aluminum profile, characterized in that a transfer device for installing the above-mentioned bases is provided between the storage table and the second saw charge table to pass the extruded profile above the first saw charge table. . 2. The rear equipment of aluminum profile extrusion according to claim 1, further comprising a stretcher on the cutting machine side of the runout table. 3. The rear equipment of the aluminum profile extrusion according to claim 1, wherein the stretcher is a cooling stretcher adjacent to the runout table and a stretcher provided on the cutting machine side. 4. A box adjacent to the runout table.
The rear equipment of the aluminum profile extrusion according to claim 3, wherein a cooling fan is provided in the area of the ring stretcher. 5. The rear equipment of aluminum profile extruding according to claim 1, wherein a cooling fan is attached to the transfer device. 6. Extrusion of 1 to 2 billets per die is performed twice or more continuously in an extrusion cycle in which operations including die exchange, puller chucking, and profile extrusion are performed in about 199 seconds or less, and extrusion is performed. Approximately 100 ~ about the work including stretching the formed profile and cooling it on a cooling table, and then transferring to a saw charge table, cutting the stretch allowance, cutting to length and delivering the cut profile. 250
In the post-processing method of the aluminum profile extrusion that performs the cutting cycle performed in seconds, the first saw charge table attached to the profile cutting machine
The extruded profile is transferred from the storage table and cut, and the second profile is attached in parallel to the first saw charge table. Is a second extruded profile of a different type that is transferred and cut by a transfer device that passes above the first saw charge table, and the cutting is performed on both the first saw charge table and the second saw charge table. A post-processing method for aluminum profile extrusion, which comprises performing a cycle. 7. The post-processing method for the aluminum profile extrusion according to claim 6, wherein the profile is cooled by a fan attached to the transfer device.