Cutting unit

Abstract

The invention relates to a cutting unit (10) configured to form notch (22) on a disc (20) by cutting the circular surfaces of soil cultivation discs, comprising at least one table on which the disc (20) to be subjected to the cutting process is positioned, comprising at least one cutting arm (70) and at least one lower die (100) between which the portion of the disc (20) to be cut is placed, at least one first drive element (50) that enables the cutting arm (70) to be moved towards the lower die (100) for the cutting process, that is connected to the cutting arm (70) by a rotary bearing (60), and that transmits drive to rotate the cutting arm (70) around the rotary bearing (60) for the cutting process. Accordingly, its novelty is that it comprises at least one rotation mechanism (40) for rotating the table (30) around the center (21) of the disc (20), it comprises at least one second drive element (110) for moving the table (30) along a first axis (I) toward or away from the cutting zone (90) between the lower die (100) and the cutting arm (70).

Description

[0001] CUTTING UNIT

[0002] TECHNICAL FIELD

[0003] The invention relates to a cutting unit configured to form notch on a disc by cutting the circular surfaces of soil cultivation discs, comprising at least one table on which the disc to be subjected to the cutting process is positioned, comprising at least one cutting arm and at least one lower die between which the portion of the disc to be cut is placed, at least one first drive element that enables the cutting arm to be moved towards the lower die for the cutting process, that is connected to the cutting arm by a rotary bearing, and that transmits drive to rotate the cutting arm around the rotary bearing for the cutting process.

[0004] PRIOR ART

[0005] Disc harrow discs are important equipment used in agriculture for soil cultivation. These discs are generally made of hardened steel and can have different diameters. Disc harrow discs cut, break up, and mix the soil, thereby preparing it before sowing. Disc harrow discs undergo various processes such as cutting, heat treatment, forging, painting-coating, and assembly. One of these processes is the notch forming process. The notch forming process on disc harrow discs is performed to enable the discs to break the soil more effectively.

[0006] The formation of notches allows the discs to penetrate the soil more deeply and achieve better cutting. Notches are formed at equal intervals on the outer edges of the discs. These notches provide better grip in the soil and reduce slippage of the discs. In the prior art, problems occur in notch forming machines regarding the rotation of the disc and its movement toward the cutting zone where the notches are formed. Problems in the rotational movement of the disc may cause the disc to slip or stop completely. This leads to irregularly formed notches and unwanted damage on the surface of the disc.

[0007] One of the problems occurring during the rotational movement of the disc during processing is the insufficiency of the torque required to rotate the disc. Insufficient torque may cause the disc to lose speed while rotating or to rotate intermittently. This reduces processing quality and negatively affects the efficiency of the machines. The proper movement of the disc toward the cutting zone, where the notches are formed, is critical for creating precise and consistent notches. However, various problems also occur in this process in the prior art. Irregularities in the movement of the disc toward the cutting zone cause interruptions in the cutting process and result in incorrectly formed notches. This situation generally arises from failures in the disc transport mechanism or alignment issues. Obstruction or encountering obstacles during the movement of the disc toward the cutting zone leads to prolonged processing times and interruptions in the production process.

[0008] Application No. US3213514A known in the literature discloses a method for manufacturing planting discs for agricultural tools. The structure described in the document forms multiple notches with a single press stroke, thereby aiming to reduce production time and cost. The discs are heated before the process, and a punch cuts the notches and compresses the material to form a cutting edge. It is stated that all notches are completed in a single operation. However, the relevant document does not disclose any solution regarding the rotation of discs of different sizes or their movement toward and away from the cutting tip during the notching process.

[0009] As a result, all the above-mentioned problems have made it imperative to make an innovation in the relevant technical field.

[0010] SUMMARY OF THE INVENTION

[0011] The present invention relates to a cutting unit for eliminating the above-mentioned disadvantages and bringing the new advantages to the relevant technical field.

[0012] An object of the invention is to provide a cutting unit in which discs of different diameters can be precisely processed.

[0013] Another object of the invention is to provide a cutting unit with high notching efficiency.

[0014] In order to achieve all the purposes mentioned above and that will emerge from the detailed description below, the present invention is related to a cutting unit configured to form notch on a disc by cutting the circular surfaces of soil cultivation discs, comprising at least one table on which the disc to be subjected to the cutting process is positioned, comprising at least one cutting arm and at least one lower die between which the portion of the disc to be cut is placed, at least one first drive element that enables the cutting arm to be moved towards the lower die for the cutting process, that is connected to the cutting arm by a rotary bearing, and that transmits drive to rotate the cutting arm around the rotary bearing for the cutting process. Accordingly, its novelty is that it comprises at least one rotation mechanism for rotating the table around the center of the disc, it comprises at least one second drive element for moving the table along a first axis toward or away from the cutting zone between the lower die and the cutting arm. Thus, notch can be formed with high precision on discs of different diameters.

[0015] A possible embodiment of the invention is characterized in that the lower die is connected in a detachable manner so that discs of different diameters can be processed. Thus, a cutting zone suitable for discs of different diameters can be obtained.

[0016] Another possible embodiment of the invention is characterized in that it comprises at least one movable body driven by the second drive element. Thus, the disc to be processed can move along the first axis.

[0017] Another possible embodiment of the invention is characterized in that it comprises at least one cutting tip for forming a notch on the disc positioned in the cutting zone. Thus, a notch can be formed on the disc.

[0018] Another possible embodiment of the invention is characterized in that it comprises at least one stop apparatus that controls the movement of the disc along the first axis during its rotation. Thus, uncontrolled movement of the disc rotating about its own axis can be prevented.

[0019] Another possible embodiment of the invention is characterized in that the cutting arm is connected to be rotatable around the rotary bearing along at least one rotation axis. Thus, the driving force transmitted by the first drive element can be used to form notches on the disc. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 shows a representative perspective view of the cutting unit assembly of the invention

[0021] DETAILED DESCRIPTION OF THE INVENTION

[0022] In this detailed description, the subject of the invention is explained by way of example only for a better understanding of the subject, which shall not create any limiting effect.

[0023] Fig.1 shows a representative perspective view of the cutting unit (10) assembly of the invention. The cutting unit (10) performs the notch (22) forming process on the disc harrow discs used for soil processing in agriculture. The notches (22) formed by the cutting unit (10) allows the discs to penetrate the soil deeper and achieve better cutting. Thanks to this process step, the disc harrow discs provide better grip on the soil and slip less.

[0024] The cutting unit (10) which is the subject of the invention operates on at least one disc (20) which is the workpiece. There is at least one center (21) opening on said disc (20). Through said center (21), the disc (20) is connected to at least one table (30). The disc (20) is seated on the table (30), and its movement is ensured during at least one notch (22) forming process. A plurality of the notch (22) is formed on the surface of the disc (20). The first movement of the disc (20) is rotational movement its own axis. The cutting unit (10) comprises at least one rotation mechanism (40) (not shown in the figures). The rotation mechanism (40) rotates the table (30) and the disc (20) placed on it. By rotating the disc (20) placed on the table (30), the notch (22) forming process can be performed at equal intervals on the surface of the disc (20).

[0025] In the cutting unit (10) which is the subject of the invention, the cutting process is carried out to create the notch (22) structure mentioned on the disk (20). The cutting unit (10) comprises at least one first drive element (50). The first drive element (50) is the component that provides the drive required for the cutting process. In a possible embodiment of the invention, the first drive element (50) may be a hydraulic or pneumatic drive element. The first drive element (50) provoke to at least one rotary bearing (60). The driven rotary bearing (60) transmits movement in at least one first axis (I) to at least one cutting arm (70). The cutting arm (70) utilizes the movement received from the rotary bearing (60) to form a notch (22) on the disc (20). By partially rotating the cutting arm (70) around the rotary bearing (60) along at least one rotation axis (II), the cutting arm (70) is able to apply a force perpendicular to the disc (20).

[0026] The cutting arm (70) located in the cutting unit (10) which is the subject of the invention comprises at least one cutting tip (80). The cutting tip (80) is the portion that comes into contact with the disc (20), which is the workpiece, for forming a notch (22). The disc (20) positioned on the table (30) is moved in at least one first axis (I) and brought closer to the cutting tip (80). There is at least one second drive element (110) that provides the drive required for this movement. In a possible embodiment of the invention, the second drive element (110) may be a hydraulic or pneumatic actuator. The second drive element (110) moves at least one movable body (120) along the first axis (I). The movable body (120) is positioned on at least one guide (130). The guide (130) is essentially a passage in which the movable body (120) is seated and able to move.

[0027] With these mentioned structures, the cutting unit (10) rotates the disc (20) on its own axis thanks to the rotation mechanism (40) and in addition to this, it can move the disc (20) forward and backward on the first axis (I) thanks to the movable body (120) driven by the second drive element (110). The ability of the cutting unit (10) to move the disc (20) to be processed on the first axis (I) advances the disc (20) to the cutting end. The movable body (120) has adjustable freedom of movement on the first axis (I) for processing discs (20) of different diameters. At least one stop apparatus (140) has been developed to prevent the disc (20) from advancing uncontrollably during its rotation around its own axis. The stop apparatus (140) prevents the disc (20) rotating on its own axis, thanks to the rotation mechanism (40), when disc (20) approaches the machine body, and a possible collision is prevented.

[0028] The cutting arm (70) is connected to at least one lower die (100). The lower die (100) secures the cutting arm (70). In a possible embodiment of the invention, the lower die (100) can be detachable, and in this way, the distance between the lower die (100) and the cutting tip (80) can be adjusted to accommodate discs (20) of different diameters. The area between the cutting tip (80) and the lower die (100) is at least one cutting zone (90). The cutting zone (90) can be adjusted to suit discs (20) of different diameters by dismantling the lower die (100). The cutting zone (90) is the zone where the cutting tip (80) performs the notch (22) forming process on the disc (20). In the cutting unit (10) which is the subject of the invention, the form of the notch (22) can be adjusted for different sized discs (20) by removing the lower die (100) and thus changing the cutting zone (90).

[0029] In line with the described above, the invention works as follows; the disc (20), on which the notch (22) is to be formed, is connected onto the table (30). The cutting unit (10) rotates the disc (20) on its own axis with its rotation mechanism (40) and in addition to this, it can move the disc (20) on a first axis (I) thanks to the movable body (120) driven by the second drive element (110). The rotary bearing (60) driven by the first drive element (50) transfers its movement in the first axis (I) to the cutting arm (70) and the cutting tip (80) creates a notch (22) in the disc (20) by the rotation of the cutting arm (70) around the rotary support (60) in the said rotation axis (II). Since the lower die (100) to which the cutting arm (70) is connected is removable, the cutting zone (90) between the cutting tip (80) and the lower die (100) can be adjusted to process different disc (20) pieces. Therefore, a cutting unit (10) is obtained which has the advantage of being able to form notches (22) at different tolerances on discs of different diameters, by being able to rotate the workpiece disc (20) on its own axis and move back and forth on the first axis (I).

[0030] The scope of protection of the invention is specified in the appended claims and cannot be limited to what is described for illustrative purposes in this detailed description. It is clear that a person skilled in the art can produce similar embodiments in the light of what is explained above, without deviating from the main theme of the invention.

[0031] REFERENCE NUMERALS GIVEN IN THE DRAWING

[0032] 10 Cutting Unit

[0033] 20 Disc

[0034] 21 Center

[0035] 22 Notch

[0036] 30 Table

[0037] 40 Rotation Mechanism

[0038] 50 First Drive Element

[0039] 60 Rotary Bearing

[0040] 70 Cutting Arm

[0041] 80 Cutting Tip

[0042] 90 Cutting Zone

[0043] 100 Lower Die

[0044] 110 Second Drive Element

[0045] 120 Movable Body

[0046] 130 Guide

[0047] 140 Stop Apparatus

[0048] (I) First Axis

[0049] (II) Rotation Axis

Claims

CLAIMS1. A cutting unit (10) configured to form notch (22) on a disc (20) by cutting the circular surfaces of soil cultivation discs, comprising at least one table on which the disc (20) to be subjected to the cutting process is positioned, comprising at least one cutting arm (70) and at least one lower die (100) between which the portion of the disc (20) to be cut is placed, at least one first drive element (50) that enables the cutting arm (70) to be moved towards the lower die (100) for the cutting process, that is connected to the cutting arm (70) by a rotary bearing (60), and that transmits drive to rotate the cutting arm (70) around the rotary bearing (60) for the cutting process, characterized in that it comprises at least one rotation mechanism (40) for rotating the table (30) around the center (21) of the disc (20), it comprises at least one second drive element (110) for moving the table (30) along a first axis (I) toward or away from the cutting zone (90) between the lower die (100) and the cutting arm (70).

2. A cutting unit (10) according to claim 1 , characterized in that the lower die (100) is connected in a detachable manner so that discs (20) of different diameters can be processed.

3. A cutting unit (10) according to claim 1 , characterized in that it comprises at least one movable body (120) driven by the second drive element (110).

4. A cutting unit (10) according to claim 3, characterized in that it comprises at least one guide (130) connected to the movable body (120).

5. A cutting unit (10) according to claim 1 , characterized in that it comprises at least one cutting tip (80) for forming a notch (22) on the disc (20) positioned in the cutting zone (90).

6. A cutting unit (10) according to claim 1 , characterized in that it comprises at least one stop apparatus (140) that controls the movement of the disc (20) along the first axis (I) during its rotation.

7. A cutting unit (10) according to claim 1 , characterized in that the cutting arm (70) is connected to be rotatable around the rotary bearing (60) along at least one rotation axis (II).

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