Technological Area:

This invention is about a scrap cutting machine that can be used in cutting big metal scrap materials.

Current Situation of the Technique:

There are molded presses and guillotines currently in use to cut metal scraps in order to reduce their sizes. Molded presses are structures that are used to get products at desired shapes (cubic, rectangular, square etc.) from scrap metals. The disadvantages of these machines are their absolute cycle discontinuity and that it takes long for each pressing operation.

Another method, guillotines works faster compared to molded presses. There are manually or automatically operated types of guillotines. In manually operated guillotines, the time required to arrange the size of the material to be cut and the difficulties faced in cutting very heavy metal scraps, make it difficult for the personnel. In automatically operated guillotines, the one-sided cutting of the guillotine causes the guillotine blade to be constantly exposed to tensile force and it won't be possible to make a proper cutting operation. In addition, they will need frequent maintenance.

In the utility model application numbered CN207563811U, "Highly efficient scrap iron cutter" is described. The invention is used in cutting materials with high metal toughness. With the help of the buttons in the control board, the shears connected to the hydraulic cylinder is moved and enables the scrap cutting operation.

In the patent application numbered US4041821A, the "Scrap cutter machine" is described. The invention includes fixed blades composed of two parts for scrap cutting operation, the blades are arranged in a way to consecutively cut the scrap material and one blade is aligned in a way to lie on at least a 30° angle to the cutting plane of the other blade.

In the inventions mentioned above, it's obvious that there will be difficulties in serial cutting operations of large scaled materials. Cutting operation continues until one side of the blade touches the side of the other blade so there will be deformations on blades and it may hinder the cutting operation.

In conclusion, there's a need for a new safe technology which can overcome the difficulties mentioned above, enable the cutting of large scaled materials, suitable for serial operation, does not allow the engine and equipment to be heated much with the help of its' cooling cycle and can prevent the accidents that may happen during cutting.

Definition of Invention:

This invention is a new safe technology which can overcome the difficulties mentioned above, enable the cutting of large scaled materials, suitable for serial operation, does not allow the engine and equipment to be heated much with the help of its' cooling cycle and can prevent the accidents that may happen during cutting.

The most important feature of our invention that distinguishes it from the other existing hydraulic shears, is that materials here are cut within in a cylindrical structure. Scraps are entering from the structure's top reservoir, being cut and transferred to the bottom conveyor belt. As the cutting operation takes place inside the body, it becomes possible to avoid accidents that may occur during cutting.

The function of the blades cutting in our invention is different compared to the existing blades. 2 blades are being used in cutting operation and these blades are being pushed by pistons to the blade slots placed in line, right in front of them. And as the scrap left in the middle is being cut by both sides, it breaks the bond with the main scrap material and is being carried by drums to the conveyor belt. Materials in here are being cut in half a meter lengths.

The oil that's heated of friction is being cooled down with the cooling systems in our invention and the fan and climate systems within these cooling systems. Cooled down oil is being transferred back to hydraulic oil feed reservoirs and from there sent to the pumps. Ducts that preserve the cooled and hot oil are different and recirculation of the oil in the system is enabled by these ducts.

With the help of the bending system (Section C) in our invention, it's avoided to leave space while the material is being cut. For the materials leaving space are hard to cut, the space is being removed by bending the material around its' own like a rope. This way, the scrap is more easily cut in the blades. As the bending system ascends together with the scrap in its' downward motion, it receives support from hydraulic force. And in its' upward motion, pneumatic force is being used for it to raise fast as it will not carry any load. The rotational motion of the bending system is enabled by hydromotors.

As the parts composing the invention is able to be fixed onto each other easily, the invention is installed easily, hence its' assembly time is short which makes the cost low. In addition, the invention has a solid structure.

Description of Figures:

The invention will be described by referring to the annexed figures, this way function and characteristics of the invention will be understood more clearly, but this is not intended to limit the invention with these specific arrangements. Contrary, it's intended to cover all alternatives, changes and equivalencies which can be included in the area the invention is described in by the claims in the annex. It's best to note that shown details are demonstrated and presented only for the purpose of describing the preferred arrangements of the current invention and providing the most practical and easy definition of both the development of methods and the rules and conceptual features of the invention. In these figures; Figure 1 Cross-section view showing the interior of the system.

Figure 2 Cross-section view showing the interior of the system.

Figure 3 Top cross-section view of Section C.

Figure 4 Cross-section view of the blades.

Figure 5 Cross-section view of the accordion system.

Figures that will help to understand this invention are numbered as specified in the annexed picture and they are given below by their names.

Description of References:

1. Top body

2. Bottom body

3. Covering

4. Section A

4.1. First piston

4.2. First piston bearing

5. Section B

5.1. Second piston

5.2. Second piston catch cap

6. Section C

6.1. Slide

6.2. Third piston

6.3. Fourth piston

6.4. Spin wall

6.5. Electric line

6.6. Inner wall

6.7. Block hoop

6.8. Inner wall bearing

6.9. Fifth piston

6.10. Fifth piston catch cap 7. Section D

7.1. Sixth piston

7.1.1. Connecting piece

7.2. Sixth piston fixing cap

8. Section E

8.1. Seventh piston

8.2. Blade

8.3. Blade slot

9. Section F

9.1. Eighth piston

9.2. Shear bottom cap

10. Section G

10.1. Drum

10.2. Drum hydromotor

10.3. Fixing rod

10.4. Steel springs

10.5. Scrap slipping apparatus

11. Hydraulic pump oil reservoir

12. Hydraulic oil pump

13. First oil cooling system

14. Radiator

15. Hydromotor

16. Accordion top beam

17. Accordion circles

18. Accordion bottom beam

19. Second oil cooling system

20. First oil fitting shaft

21. Cooled oil feeding tank

22. Second oil fitting shaft

23. Compressor and air tank chamber

24. Air inlet-outlet fitting shaft

25. Cooled oil preserving tank 26. Hot oil preserving tank

27. Air preserving tank

28. Pillar

H _g Scrap intake

H _Q Scrap outlet

K Conveyor belt

Description of Invention:

The invention has a top body (1) and a bottom body (2) with a cylindrical form, a covering (3) fixed to preserve the surrounding of the top body (1) and the bottom body (2), Section A (4) that pushes down the scrap entering by the scrap intake (H _g ) through the first piston (4.1), Section B (5) that holds the scrap entering by Section A (4) with the second piston catch cap (5.2), Section C (6) that makes the scrap to be rotated clockwise or counter-clockwise and transferred downward, Section D (7) that makes the left-open part of the scrap transferred from Section C (6) to be fixed, Section E (8) that makes the scrap to be cut by blades (8.2) after being transferred down through the opened sixth piston fixing cap (7.2) in Section D (7), Section G (10) that makes the cut scrap to be transferred to the conveyor belt (K) with at least one drum (10.1), Section F (9) that prevents scrap piling up between Section E (8) and Section G (10), at least one hydraulic oil pump (12) fixed inside the top body (1) in a way to provide oil pressure to all hydraulic pistons and engines in the system, a compressor and air tank chamber (23) that provides air pressure to the fourth piston (6.3) in Section C (6) working pneumatically by the pressured air generated, at least one pillar (28) that fixes the bottom body (2) and the top body (1) on to each other and at least one hydromotor (15) that makes the Section C (6) to be rotated clockwise or counter-clockwise.

The invention has an accordion top beam (16), accordion circles (17) and an accordion bottom beam (18) that enables the gradual passes of Section C (6) at certain distances in its' downward motion (down-up). The system subject to invention has a first oil cooling system (13) and a second oil cooling system (19) that enables the heated hydraulic oil to be cooled down. The first oil cooling system (13) and the second oil cooling system (19) mentioned in the invention, has a fan system which provides the cooling function. The invention includes a radiator (14) which increases the time the hot oil is exposed to the cool air coming from the fan and the heat loss in the pipes. The hydraulic oil pump (12) mentioned in the invention, has an oil outlet (12.1) that enables the transfer of oil to pistons and engines.

There's a hydraulic pump oil reservoir (11) in the invention that enables the transfer of hydraulic oil to hydraulic oil pumps (12). The invention has a first oil fitting shaft (20) that enables the intake of hot oil and outlet of cooled oil. In the system subject to invention, a second oil fitting shaft (22) provides the connection between the cooled oil feeding tank (21) and the second oil cooling system (19). The invention includes a cooled oil feeding tank (21) that sends cooled oil to the cooled oil preserving tank (25). The invention includes a hot oil preserving tank (26) that enables the flow of hot oil to the second oil cooling system (19). In the system subject to invention, the air coming from the compressor and air tank (23) is stored under pressure in an air preserving tank (27). The invention has an air intake-outlet fitting shaft (24) that enables the air intake and outlet. There's a second oil fitting shaft (22) that enables the intake and outlet of cooled oil.

Section C (6) mentioned in the invention, has; a slide (6.1), a spin wall (6.4) that is threaded on the slide (6.1) and rotates clockwise or counter-clockwise around the slide (6.1) by means of hydromotors (15), an electric line (6.5) that powers the hydromotors (15), an inner wall (6.6) that is beared on the inner side of the spin wall (6.4), a block circle (6.7) where the moving system takes the rotational force from, at least one fifth piston catch cap (6.10) that enables the scrap to be held and bent by the clockwise or counter-clockwise motion, a fifth piston (6.9) that enables the forward-backward motion of the fifth piston catch cap (6.10), six inner wall bearings (6.8) that enable the fifth piston (6.9) and the fifth piston catch cap (6.10) to be beared, a third piston (6.2) that works hydraulically and enables the vertical downward motion of the spin wall (6.4) and a fourth piston (6.3) that works pneumatically and enables the vertical upward motion of the spin wall (6.4).

Every fifth piston catch cap (6.10) in the invention is looking 15° downward.

Section G (10) mentioned in the invention has; at least one drum (10.1) that transfers scraps to the conveyor belt (K) with slow and fast revolutions, a drum hydromotor (10.2) that enables the drums (10.1) to make rotational motion, a fixing rod (10.3) that enables the drums (10.1) to be fixed on the bottom body (2), at least one steel spring (10.4) that absorbs the shock pressures occurring during the transfer of scraps and at least one scrap slipping apparatus (10.5) that enables the removal of burrs of the scraps. Section A (4) mentioned in the invention, includes a first piston bearing (4.2) that enables the first piston (4.1) to be beared. Section B (5) mentioned in the invention, includes a second piston (5.1) that enables the forward -backward motion of the second piston catch cap (5.2).

Section D (7) mentioned in the invention has a sixth piston (7.1) that includes a connecting piece (7.1.1) connected in a way to enable the forward-backward motion of the sixth piston fixing cap (7.2). Section E (8) mentioned in the invention has; at least one blade (8.2) that enables the cutting of scraps, a blade duct (8.3) that enables the blades (8.2) to beared within the body while making shear motion and at least one seventh piston (8.1) that enables the forward-backward motion of the blades (8.2). Section F (9) mentioned in the invention has; at least one shear bottom cap (9.2) that can open and close in order to prevent scraps from piling up. The characteristic of Section F (9) mentioned in the invention is; having at least one eighth piston (9.1) that enables the forward-backward motion of the shear bottom caps (9.2).

Detailed Description of Invention:

The basic parts composing the invention are; the top body (1), the bottom body (2), the covering (3), section A (4), section B (5), section C (6), section D (7), section E (8), section F (9), section G (10), the hydraulic pump oil reservoir (11), the hydraulic oil pump (12), the first oil cooling system (13), the radiator (14), the hydromotor (15), the accordion top beam (16), the accordion circles (17), the accordion bottom beam (18), the second oil cooling system (19), the first oil fitting shaft (20), the cooled oil feeding tank (21), the second oil fitting shaft (22), the compressor and air tank chamber (23), the air intake-outlet fitting shaft (24), the cooled oil preserving tank (25), the hot oil preserving tank (26), the air preserving tank (27) and the pillar (28).

Section A (4) in the invention includes the following parts; the first piston (4.1) and the first piston bearing (4.2). Section B (5) in the invention includes the following parts; the second piston (5.1) and the second piston catch cap (5.2). Section C (6) in the invention includes the following parts; the slide (6.1), the third piston (6.2), the fourth piston (6.3), the spin wall (6.4), the electric line (6.5), the inner wall (6.6), the block circle (6.7), the inner wall bearing (6.8), the fifth piston (6.9) and the fifth piston catch cap (6.10). Section D (7) in the invention includes the following parts; the sixth piston (7.1) and the sixth piston fixing cap (7.2). And the sixth piston (7.1) includes only one part which is the connection piece (7.1.1). Section E (8) in the invention includes the following parts; the seventh piston (8.1), the blade (8.2) and the blade duct (8.3). Section F (9) in the invention includes the following parts; the eighth piston (9.1) and the shear bottom cap (9.2). Section G (10) in the invention includes the following parts; the drum (10.1), the drum hydromotor (10.2), the fixing rod (10.3), the steel spring (10.4) and the scrap slipping apparatus (10.5). Within the inner wall bearing (6.8) there are also the oil pump, oil cooling system (air and gas) and hot-cooled oil tanks of the Section C's (6) spin system.

The working principle of the system subject to invention is as follows; before scraps are entering through the scrap intake (H _g ) section, the first pistons (4.1) in Section A (4) goes back and scraps are filled. Section C (6) is pushed for half a meter with the third pistons (6.2). The first pistons (4.1) in Section A (4) closes in order to push the scraps left above to Section B (5). Then the second pistons (5.1) in Section B (5) push the second piston catch caps (5.2) and enable the scrap to be caught. The fifth piston (6.9) in Section C (6) opens the fifth piston catch caps (6.10) and ascends for half a meter by means of the fourth pistons (6.4) of Section C (6) which works pneumatically. Then, the fifth piston (6.9) closes the fifth piston catch caps (6.10). Meantime, the second piston catch caps (5.2) in Section B (5) open and scrap entry by Section A (4) continues. Section C (6) begins to rotate clockwise or counter-clockwise by means of the hydromotors (15) and bends the scrap like a rope. At the same time, it begins to drive the scrap toward Section D (7). Section D (7) catches the left-open scrap by means of the sixth piston catch caps (7.2). Meantime, Section C (6) ascends again by means of the fourth piston (6.3). While Section C (6) is ascending, the sixth piston (7.1) in Section D (7) pulls back the sixth piston fixing caps (7.2) and sends the scraps to Section E (8). The seventh pistons (8.1) in Section E (8) starts moving and pushes the blades (8.2) to send them to the blade ducts (8.3). Cut scrap falls between the drums (10.1) in Section G (10) and by means of the drum hydromotors (10.2) the rotating drums (10.1) leave the scraps on to the conveyor belt (K). System continually works in this way in a recirculation. During a system overhaul, the personnel unbolts the bolts on the pillars (28) and easily performs the operation.