KR102187812B1 - Billet supplying apparatus with half cutting device and back-push - Google Patents

Abstract

The present invention relates to a billet pullout apparatus having both a billet half-cutting device and a back push device and, more specifically, to a billet pullout apparatus in which a half cutting device for use of the remaining portions of billets that cannot be supplied because the billets have a length less than a reference length, among the billets cut into a required length after being heated in order to supply the same to an extruder, and a back push device for pushing the billets back to a heating furnace, are integral with each other. The billet pullout apparatus having both a billet half-cutting device and a back push device cuts billets into n unit billets of a predetermined length and discharges the same. The heating furnace heats and supplies billets to be cut. A transfer unit transfers the billets supplied from the heating furnace to a cutting unit. The cutting unit cuts the billets. A pullout unit moves the billets cut by the cutting unit. A lifting device lifts the billets located in the pullout unit to reserve the discharge of the cut billets. A first push unit is installed in the pullout unit that moves vertically, and pushes the billets remaining in the transfer unit back to the heating furnace. A second push unit is installed in the lifting device that moves vertically, and pushes the cut billets to the transfer unit. The pullout part and the lifting device are arranged vertically to move vertically along the same vertical rail part.

Description

Billet supplying apparatus with half cutting device and back-push

The present invention relates to a billet half and a back push integrated take-out device, and more particularly, to use the rest of the billets that cannot be supplied because they are less than the standard length among billets that are cut to a required length after heating to supply to an extruder. It relates to a semi-dividing device and a back-push integrated billet take-out device that is pushed back into a heating furnace after cutting.

The aluminum extrusion process is a process in which continuously cast aluminum is cut, heated, and extruded through an extruder to produce a product having a desired cross section.

The general continuous casting process is as follows.

First, an aluminum alloy material, which is a base material, is put into a melting furnace to dissolve it, and it is heated by inducing electromagnetic waves using an electromagnetic stirrer to give a constant fluctuation to the melting furnace.

Subsequently, the molten metal is injected into the casting machine and cooled to produce a rod-shaped aluminum billet) and then transferred through a transfer conveyor.

These aluminum billets use an aluminum billet cutting device to cut the billets, thereby eliminating butts generated during cutting, and supplying billets having an appropriate constant length.

On the other hand, the billet for feeding to the extruder is cut into a certain length. At this time, there is a problem in that the billet remaining at the end after cutting cannot be used because it does not satisfy the required length of the billet.

Korean Patent Publication No. 10-2023176 (2019.09.11.)

The present invention is to solve the above-described problem, and it is possible to use the billet of a length less than the standard length for supply to the extruder without discarding, and provides a half billet and a back-push integrated take-out device that can minimize the installation space. It has its purpose.

In order to achieve the above object, the billet half and back push integrated take-out device of the present invention cuts and discharges the billet into n unit billets of a constant length, and the heating furnace heats and supplies the billet to be cut, and the transfer unit The billet supplied from the heating furnace is transferred to the cutting part, the cutting part cuts the billet, the take-out part moves the cut billet by the cutting part, and the lifting device lifts the billet located in the take-out part to remove the cut billet. Discharge is suspended, and a first push unit is installed on the ejection unit that moves upward and pushes the billet remaining in the transfer unit back into the heating furnace, and a second push unit is installed on the lifting device that moves upward to remove the cut billet. It is pushed into the conveying part, and the take-out part and the lifting device are arranged vertically and move up and down along the same vertical rail part.

The heating furnace sequentially supplies a primary billet and a secondary billet, and the cutting unit cuts the n-th unit billet of the primary billet and separates it into a first half billet and a second half billet, and the lifting device comprises the first billet. After lifting the half billet to hold the discharge of the first half billet, the cutting unit cuts the secondary billet so that the second half billet of the primary billet and the first cut portion of the secondary billet become one unit billet. do.

The lifting device lowers the first half billet to the ejection unit after the second half billet of the primary billet is discharged, and the second push unit descends together with the lifting device to transfer the first half billet to the transfer unit. And the first push part rises together with the takeout part to push the first half billet located in the transfer part into the heating furnace, and the heating furnace cuts the second billet together with the first half billet. It is supplied as a part, and the cutting part cuts the secondary billet so that the second cut part of the secondary billet together with the first half billet becomes the first unit billet of the secondary billet.

Specifically, the take-out part includes a lower base that moves upwardly along the vertical rail part, a horizontal rail part installed on the lower base, and a take-out moving along the horizontal rail part to move away from the cutting part or approach the cutting part. It consists of a slider.

The billet half and back-push integrated take-out device of the present invention can be used without discarding billets with a length that is less than the standard length for feeding to the extruder.

In addition, in the present invention, the first push part is installed under the horizontal rail part and moves up and down with the take-out part, the second push part moves up and down with the lifting device, and the take-out part and the lifting device move up and down along the same vertical rail part. By doing so, it is manufactured in an integrated form, so the installation space can be minimized.

1 is a view showing a billet half and back push integrated take-out device according to an embodiment of the present invention.
FIG. 2 is a view showing the half of the billet of FIG. 1 and the motor of the cutting part of the integrated back-push take-out device omitted.
3 is a view from above of a billet half and a back push integrated take-out device according to an embodiment of the present invention.
Figure 4 is a view as viewed from the front of the billet half and back push integrated take-out device according to an embodiment of the present invention.
5 is a diagram schematically showing a method of generating a unit unit of a billet half and a back push integrated takeout device according to an embodiment of the present invention.
6 to 10 are diagrams showing a method of generating an n-th unit billet of a primary billet and a first unit billet of a secondary billet.
11 is a view separately showing an ejection unit and a discharge device according to an embodiment of the present invention.

The present invention relates to a billet half and a back-push integrated take-out device for cutting a billet (B) into n unit billets (U) having a constant length and feeding it to an extruder. That is, in the billet half and back push integrated take-out device of the present invention, an initial billet having a long length is cut to a specific length required and supplied to the extruder.

Hereinafter, with reference to the accompanying drawings, the billet half and back push integrated take-out device of the present invention will be described in detail.

As shown in Figure 1, the billet half and back push integrated take-out device according to an embodiment of the present invention includes a transfer part 30, a cutting part 40, a vertical rail part 50, and a take-out to the fixed body 10. A portion 60, a first push portion 70, a lifting device 80, a second push portion 90, and a discharge device 99 are installed. In addition, various necessary devices may be installed inside the fixed body 10.

The heating furnace 20 heats the billet B to be cut to an extruded temperature. And the heating furnace 20 includes a supply device (not shown) for pushing the heated billet (B) by the cutting length. The billet B heated by the heating furnace 20 is supplied to the cutting part 40.

As shown in Figures 2 to 3, the transfer unit 30 is made of a plurality of rollers and is installed on the fixed body 10. The transfer unit 30 is positioned between the heating furnace 20 and the cutting unit 40 to support the billet B moving to the cutting unit 40 or moving to the heating furnace 20.

The cutting part 40 is installed on the upper part of the fixed body 10 to cut the billet B. Specifically, as shown in Fig. 1, the cutting part 40 is installed before and after the safety cover 41 through which the billet (B) can pass, and the safety cover 41 to fix the billet (B). It consists of a fixing part 42, a cutting blade 43 for cutting the billet B fixed by the fixing part 42, and a motor 44 for rotating the cutting blade 43. As shown in Figure 3, the moving rail 45 is installed on the upper portion of the fixed body 10, the cutting blade 43 and the motor 44 along the moving rail 45 toward the safety cover (41) Cut the billet (B) while moving forward and backward.

The vertical rail part 50 is installed in front of the fixed body 10 to guide the up and down movement of the take-out part 60 and the lifting device 80. That is, the take-out part 60 and the lifting device 80 move up and down along the same vertical rail part 50.

The take-out part 60 moves the billet B cut by the cutting part 40 to a designated discharge position. Specifically, the take-out part 60 is cut along the horizontal rail part 61 and the horizontal rail part 61 installed above the lower base 63 and the lower base 63 that move up and down along the vertical rail part 50 It consists of a take-out slider 62 that moves away from the part 40 or moves toward the cutting part 40.

Since a portion of the billet (B) cut by the cutting portion 40 is still located inside the safety cover 41, it cannot be immediately discharged in a cut state or lifted by the lifting device 80. Accordingly, the cut billet B is moved away from the cutting part 40 so that the cut billet B can be discharged or lifted by the lifting device 80.

In the drawing, the front side is the direction in which the billet (B) proceeds and the ejection portion 60 is located, and the rear side is the direction in which the heating furnace 20 is located.

The first push part 70 pushes the remaining billet (B) into the heating furnace 20 after the cut billet (B) is discharged. Specifically, the first push unit 70 is a cylinder-piston device using hydraulic pressure and pushes the billet B while the piston protrudes backward. The first push part 70 is installed under the horizontal rail part 61 and moves up and down together with the take-out part 60.

The lifting device 80 is installed above the take-out part 60 and lifts the billet B located in the take-out part 60. That is, the lifting device 80 lifts the billet (B) and separates the billet (B) from the cutting and discharging system, thereby holding the discharge of the cut billet (B). As the lifting device 80 lifts the billet (B) in this way, the cutting and discharging process of the remaining billets (B) can be performed without the first cut billet (B) being discharged.

Specifically, as shown in FIGS. 1 and 4, the lifting device 80 includes a lifting body 81 moving along the vertical rail part 50 and a plurality of clamps 82 installed on the lifting body 81 It is mounted on the lifting body 82 and consists of a rotating shaft 83 on which a plurality of forceps 82 are installed. The plurality of tongs 82 may grip the billet B by a hydraulic cylinder device or place the gripped billet.

More specifically, the two rotation shafts 82 are connected by gears so that when one rotates, the other rotates in the opposite direction. In addition, a plurality of tongs 82 are installed side by side on each of the rotary shafts 82 so that the tongs 82 are opened or crushed as the gears engaged by the hydraulic cylinder device rotate.

The second push part 90 pushes the cut billet B in the take-out part 60 to the transfer part 30. The second push part 90 pushes the billet B only to the transfer part 30 so that the first push part 70 pushes the billet into the heating furnace 20.

The second push part 90 is a cylinder-piston device using hydraulic pressure like the first push part 70 and is installed in front of the lifting device 80. In addition, the second push unit 90 may be positioned at the same height as the tongs 82 to enter between the tongs 82. Accordingly, the second push unit 90 may push the billet B located on the take-out slider 62 to the transfer unit 30 while the lifting device 80 is lowered.

The second push part 90 serves to push the billet B toward the heating furnace 20 in the same way as the first push part 70, but the second push part 90 is the cut billet B Because it pushes only a part of, the size is smaller than that of the first push unit 70 and the maximum force that can be pushed is small. In addition, the second push part 90 has a short length for pushing the billet B. On the other hand, since the first push part 70 has to push the long billet (B) or two billets (B) to the heating furnace 20 at a time, the size of the first push part 70 is large and the maximum force that can be pushed is greater.

Among the above-described configurations, along the cutting blade 43 moving along the moving rail 45, the horizontal rail part 61 moving along the vertical rail part 50 and the lifting device 80, the horizontal rail part 61 Each of the moving take-out sliders 62 is operated by a hydraulic cylinder device.

As shown in FIG. 11, the discharge device 99 discharges the billet B, which is installed in the discharge part 60 and moved to the discharge position, to the extruder. Specifically, the discharge device 99 is installed on the horizontal rail part 61, and when the discharge slider 62 moves the cut billet (B) to the discharge position, the discharge device 99 pushes the billet (B) to To discharge.

And although not separately shown in the drawing, the billet supply device of the present invention is a sensor for sensing the position of the billet or measuring the moving distance, and cuts the unit billet to a set length after receiving the length of the unit billet and a control command signal from the operator. For this purpose, it may include a control unit for operating each component of the billet supply device.

Hereinafter, a method of cutting and discharging the billet of the half billet and the integrated back-push take-out device according to an embodiment of the present invention will be described in detail.

In the present invention, for convenience of description, the billet is divided into a primary billet (B1) and a secondary billet (B2). The primary billet (B1) and the secondary billet (B2) are a relative concept for distinguishing the predecessor relationship between a plurality of billets that are delivered to cut into a unit billet (U), and are delivered first regardless of the number of billets delivered. The billet becomes the primary billet (B1), and the next continuously transferred billet becomes the secondary billet (B2).

As an embodiment of the present invention, the billet to be cut has a diameter of 20 cm and a length of 6 m. The billet supply device of the present invention cuts such billets into 10 unit billets (U) having a length of 60 cm and supplies them to an extruder.

First, the heating furnace 20 sends the primary billet B1 to the cutting part 40. The take-out slider 62 approaches and moves to the cutting part 40, and the front part of the primary billet B1, which is supported and transmitted by the transfer part 30, passes through the cutting part 40, is located on the take-out slider 62. Is done.

Thereafter, the primary billet B1 is fixed by the fixing portion 42, and the cutting blade 43 cuts the primary billet B1 to generate a first unit billet U1 having a length of 60 cm. The cut first unit billet (U1) is located on the take-out slider 62, and the take-out slider 62 advances to move the first unit billet (U1) to the discharge position. And the unit billet (U1) is discharged to the extruder by the discharge device (99).

The unit billet (U) cut by the cutting portion 40 cannot be discharged to the extruder or lifted by the lifting device 80 in that state due to the thickness of the safety cover 41. Accordingly, the take-out slider 62 moves the cut unit billet forward to move the unit billet to a designated discharge position or moves to the lower portion of the lifting device 80.

After the first unit billet U1 of the primary billet is discharged, the take-out part 60 rises together with the first push part 70. Accordingly, the first push part 70 installed under the take-out part 60 moves to the same height as the primary billet B1. Then, the first push part 70 pushes the remaining primary billet B1 into the heating furnace 20 after cutting. When the operation of the first push part 70 is completed, the take-out part 60 and the first push part 70 descend and move to the original position.

Thereafter, the heating furnace 20 sends the remaining primary billets B1 to the cutting part 40, and the take-out slider 62 moves toward the cutting part 40. And in the same way, the second unit billet (U2) of the first billet (B1) is cut and discharged to the extruder.

In this way, the ninth unit billet (U9) of the primary billet (B1) is cut and discharged. The primary billet B1 delivered for cutting the ninth unit billet U9 is delivered together with the secondary billet B2. In other words, the heating furnace 20 pushes the primary billet (B1) and the secondary billet (B2) together, and the time to push the secondary billet (B2) together with the primary billet (B1) is the remaining primary billet after cutting. It can be appropriately adjusted according to the length of (B1).

On the other hand, since each unit billet (U) is cut by a larger amount than the length of the unit billet (U) due to the thickness of the cutting blade (43), the ninth unit billet of the primary billet (B1) After cutting of (U9), the last unit billet (U10) has a problem that the length becomes shorter than 60cm. If the length of the last unit billet (U10) is 56cm, an additional 4cm billet is required, but if a billet with a diameter of 20cm is cut into a length of 4cm, it is difficult to transfer properly, so the last unit billet cannot be used. That is, a 4cm long billet collapses while moving or deviates from the work line, so that the unit billet cannot be supplied smoothly.

In order to solve this problem, the present invention cuts and discharges the ninth unit billet U9 of the primary billet, and then, as shown in FIG. 6(a), the remaining primary billet B1 and the primary billet B1 ), the secondary billet (B2), which is continuously transmitted, is pushed toward the cutting part 40, and the center of the last unit billet (Un) of the primary billet (B1) shorter than 60cm (or a location suitable for distribution) ) Is cut and separated into a first half billet (H1) and a second half billet (H2) having the same length. At this time, the take-out slider 62 has the first half billet H1 positioned on the take-out slider 62 while approaching the cutting part 40. Thereafter, as shown in FIG. 6(b), the take-out slider 62 advances to move the first half billet H1, and the lifting device 80 moves the first half billet H1 as shown in FIG. ) To lift.

When the first half billet H1 is lifted by the lifting device 80 and removed from the take-out slider 62, the take-out slider 62 is again directed toward the cutting part 40 as shown in FIG. 8(a). Moving, the heating furnace 20 pushes the secondary billet B2 and the second half billet H2 further forward. Accordingly, the second half billet H2 is positioned on the take-out slider 62, the secondary billet B2 is positioned in the cutting portion 40, and the cutting portion 40 cuts the secondary billet B2. The sum of the lengths of the first cut portion B21 of the second half billet H2 and the second billet B2 becomes one unit billet. That is, the second half billet (H2) and the first cut portion (B21) of the secondary billet become the last unit billet (Un) of the primary billet (B1), move to the discharge position by the take-out slider (62) and discharge to the extruder. do.

Thereafter, as shown in FIG. 8(b), the take-out part 60 and the first push part 70 rise, and the secondary billet B2 where the first push part 70 remains is placed in a heating furnace ( 20). And as shown in FIG. 9(a), the take-out part 60 and the first push part 70 descend, and the lifting device 80 descends to place the first half billet H1 on the take-out slider 62. Put it down. At this time, the second push part 90 descends together with the lifting device 80, and the second push part 90 pushes the first half billet H1 located on the take-out slider 62 to the transfer part 30. .

And, as shown in FIG. 9(b), after the lifting device 80 and the second push part 90 rise, the take-out part 60 and the first push part 70 rise. The first push unit 70 pushes the first half billet H1 in the transfer unit 30 into the heating furnace 20.

As shown in FIG. 10, the heating furnace 20 pushes the secondary billet B2 together with the first half billet H1 to the cutting portion 40, and the cutting portion 40 is the secondary billet ( Cut B2) so that the second cut part (B22) and the first half billet (H1) of the secondary billet become one unit billet with a length of 60cm. That is, the second cut portion B22 of the secondary billet and the first half billet H1 become the first unit billet U1 of the secondary billet B2.

The billet half and back-push integrated take-out device according to the present invention is not limited to the above-described embodiment, and can be implemented with various modifications within the scope of the technical idea of the present invention.

B: billet, C: cylinder, H: half billet, U: unit billet
10: fixed body,
20: heating furnace,
30: transfer unit,
40: cutting part,
41: safety cover,
42: fixed part,
43: cutting blade,
44: motor,
45: moving rail,
50: vertical rail part,
60: outlet,
61: horizontal rail part,
62: take-out slider,
63: lower base,
70: first push part,
80: lifting device,
81: lifting body,
82: forceps,
83: rotating shaft,
90: second push part,
99: discharge device

Claims (4)

In the billet half and back push integrated take-out device that cuts and discharges the billet into n unit billets of a constant length,
The heating furnace heats and supplies the billet to be cut,
The transfer unit transfers the billet supplied from the heating furnace to the cutting unit,
The cutting part cuts the billet,
The take-out part moves the billet cut by the cutting part,
The lifting device lifts the billet located in the take-out part to hold the discharge of the cut billet,
The first push unit is installed on the ejection unit that moves upward and pushes the billet remaining in the transfer unit back into the heating furnace,
A second push unit is installed on the lifting device to move up and down to push the cut billet into the transfer unit,
The take-out part and the lifting device are arranged vertically and move up and down along the same vertical rail part. The method according to claim 1,
The heating furnace sequentially supplies a primary billet and a secondary billet,
The cutting part cuts the n-th unit billet of the primary billet and separates it into a first half billet and a second half billet,
After the lifting device lifts the first half billet to hold the discharge of the first half billet, the cutting unit cuts the secondary billet to cut the second half billet and the first cut portion of the secondary billet. Half of the billet and a back-push integrated take-out device, characterized in that to be one unit billet. The method according to claim 2,
The lifting device lowers the first half billet to the ejection portion after the second half billet of the primary billet is discharged,
The second push part descends together with the lifting device to push the first half billet into the transfer part,
The first push part rises together with the takeout part to push the first half billet located in the transfer part into the heating furnace,
The heating furnace supplies a secondary billet together with the first half billet to the cutting part,
The cutting unit cuts the secondary billet so that the second cut portion of the secondary billet together with the first half billet becomes the first unit billet of the secondary billet. The method according to claim 1,
The take-out part,
A lower base moving up and down along the vertical rail part,
A horizontal rail part installed above the lower base,
A billet half and back push integrated take-out device comprising a take-out slider moving along the horizontal rail part and moving away from the cutting part or approaching the cutting part.

Images