Stainless steel pipe production and processing equipment and cutting method thereof

Abstract

The application relates to the technical field of stainless steel pipe production, in particular to a stainless steel pipe production and processing device and a cutting method thereof. The device comprises a workbench, connecting pieces and supporting legs. The workbench upper end one side is fixedly connected with the connecting pieces used for being connected with a steel pipe forming device through bolts. The workbench side is welded with a flat plate. The workbench and the flat plate bottom ends are welded with the supporting legs which can be adjusted in height. The workbench upper end is installed with a positioning mechanism. The flat plate side close to the workbench upper end is installed with a moving mechanism. The moving mechanism one end close to the workbench is installed with an automatic cutting machine. The moving mechanism one end far from the workbench is installed with a monitoring mechanism. The moving mechanism bottom end is installed with a driving mechanism. The workbench upper end one side is fixedly connected with a control panel. In the application, the steel pipe can be directly cut after being formed to the required length. The forming device does not need to be stopped during the cutting process, so that the efficiency of the steel pipe production can be improved.

Description

Technical Field

[0001] This invention relates to the field of stainless steel pipe production technology, specifically to a stainless steel pipe production and processing equipment and its cutting method. Background Technology

[0002] Stainless steel pipe production and processing equipment includes a series of machines and equipment used to manufacture and process stainless steel pipes. This equipment is commonly used in the manufacture of pipes in fields such as power, aviation, automobiles, air conditioning, petrochemicals, and nuclear power. The following are some common stainless steel pipe production and processing equipment: piercing mills, automatic rolling mills, leveling machines, sizing and reducing mills, welding equipment, polishing machines, cutting machines, straightening machines, heat treatment equipment, and testing equipment. The specific configuration and use of these devices will vary depending on the specifications, materials and application requirements of the stainless steel pipes produced. High-end stainless steel pipe production and processing equipment usually has the characteristics of high automation, high precision and high efficiency, and can meet the strict requirements of different industrial fields for stainless steel pipes. Existing steel pipe forming equipment requires stopping the machine after forming the steel pipe to cut it into the required length. This stopping process results in low cutting efficiency. Therefore, to address this issue, a stainless steel pipe production and processing equipment and its preparation method are proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a stainless steel pipe production and processing equipment and its cutting method, so as to solve the problem that the cutting efficiency is low when the existing steel pipe forming equipment stops to cut the steel pipe after forming in order to produce steel pipes of the required length.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A stainless steel pipe production and processing equipment and its cutting method include a worktable, connecting parts, and support legs. A connecting part for connection to a steel pipe forming device is bolted to one side of the upper end of the worktable. A flat plate is welded to the side of the worktable. Height-adjustable support legs are welded to the bottom of both the worktable and the flat plate. A positioning mechanism is installed on the upper end of the worktable. A moving mechanism is installed on the upper end of the flat plate near the worktable. An automatic cutting machine is installed at the end of the moving mechanism near the worktable, and a monitoring mechanism is installed at the end of the moving mechanism away from the worktable. A drive mechanism is installed at the bottom of the moving mechanism. A control panel is fixedly connected to one side of the upper end of the worktable. The moving mechanism includes two moving plates. The upper inner side of the movable plate is slidably connected to a positioning mechanism via a groove. A vertical plate is fixedly connected to one side of the upper upper plate. The upper upper part of the vertical plate is fixedly connected to a block via an electric telescopic rod. A first movable block is fixedly connected to one side of one movable plate, and a second movable block is fixedly connected to one side of the other movable plate. The monitoring mechanism includes a bent rod. A second adjusting screw is threaded to the inner side of one end of the bent rod. The other end of the second adjusting screw is rotatably connected to a horizontal plate. A rangefinder is fixedly connected to the middle of the horizontal plate. The driving mechanism includes a third adjusting screw. One end of the third adjusting screw is fixedly connected to the main shaft of the drive motor. The housing of the drive motor is fixedly connected to a fixed block. A guide rod is provided on one side of the third adjusting screw.

[0005] As a further optimization of the present invention, the movable plate is U-shaped, and the movable plate is slidably connected to the flat plate. A fixing frame for positioning the automatic cutting machine is fixedly connected to one side of the upper end of the movable plate, and the other side of the upper end of the movable plate is fixedly connected to the bent rod.

[0006] As a further optimization of the present invention, the following features are provided: the first moving block is threadedly connected to the third adjusting screw, the other end of the third adjusting screw is rotatably connected to the worktable, the second moving block is slidably connected to the guide rod, two fixing blocks are provided, the fixing blocks are welded and fixed to the side of the plate, one end of the guide rod is fixedly connected to the worktable, the other end of the guide rod is fixedly connected to one of the fixing blocks, and the guide rod and the third adjusting screw are parallel to each other.

[0007] As a further optimization of the present invention, there are two of each of the bent rod and the second adjusting screw, and the bent rod and the second adjusting screw correspond one-to-one. The bent rod is L-shaped, and the included angle between the second adjusting screw and the cross plate is 90°.

[0008] As a further optimization of the present invention, the positioning mechanism includes a positioning post, with an adjustment mechanism slidably connected to the outer sides of the upper and lower ends of the positioning post, a fixed plate fixedly connected to the top of the positioning post, a first adjusting screw rotatably connected to the middle of the fixed plate, and a hexagonal prism fixedly connected to the middle of the first adjusting screw.

[0009] As a further optimization of the present invention, the adjusting mechanism includes a frustum, a connecting plate fixedly connected to the upper end of the frustum, through holes in both the frustum and the connecting plate, a threaded hole in the middle of the connecting plate, and the connecting plate being threadedly connected to the first adjusting screw through the threaded hole.

[0010] As a further optimization of the present invention, the positioning mechanism is provided in two parts, which are respectively installed on the upper end of the worktable and inside the moving mechanism. The bottom end of the first adjusting screw installed inside the positioning mechanism installed on the upper end of the worktable is rotatably connected to the worktable, and the bottom end of the first adjusting screw installed inside the positioning mechanism installed inside the moving mechanism is not in contact with the moving plate.

[0011] As a further optimization of the present invention, wherein: four positioning columns are provided inside any of the positioning mechanisms, two adjustment mechanisms are provided inside any of the positioning mechanisms, the positioning columns provided inside the positioning mechanism installed on the upper part of the worktable are fixedly connected to the worktable, the positioning columns provided inside the positioning mechanism installed inside the moving mechanism are slidably connected to the moving plate through a sliding groove, and the top center of the fixed plate provided inside the positioning mechanism installed inside the moving mechanism is welded and fixed to the block.

[0012] As a further optimization of the present invention, there are two flat plates, which are parallel to each other, and the angle between the flat plates and the worktable is 90°, and the gap between the flat plates is 15cm.

[0013] As a further optimization of the present invention, wherein: S1: the steel pipe forming equipment discharges into the positioning mechanism set at the upper end of the worktable, and then into the positioning mechanism set inside the moving mechanism: the formed steel pipe enters the positioning mechanism and is positioned by the symmetrically set upper and lower truncated cones, so that the steel pipe is always discharged horizontally; S2: The monitoring mechanism monitors the output length of the steel pipe: When the steel pipe is output to the predetermined position of the distance measuring instrument, the distance measuring instrument transmits the signal to the control panel. The control panel controls the automatic cutting machine and the drive motor to work simultaneously. When the drive motor is working, it drives the moving mechanism and the automatic cutting machine to move at the same speed as the steel pipe output speed. S3: After the steel pipe reaches the required length, the automatic cutting machine moves and cuts the steel pipe. During the movement of the steel pipe, the automatic cutting machine moves synchronously with the steel pipe to complete the cutting. After the cutting is completed, the automatic cutting machine resets. At the same time, the electric telescopic rod controls the positioning mechanism inside the moving mechanism to move to both sides and no longer positions the steel pipe after the cutting is completed, so that the steel pipe falls from between the plates. S4: Cutting complete, the moving mechanism returns to its initial position, ready for the next cut: After the cut steel pipe falls between the plates, the moving mechanism returns to its initial position under the drive of the drive motor, ready for the next cut, and so on.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by setting an adjustment mechanism, a monitoring mechanism, a drive mechanism and an automatic cutting machine, the steel pipe can be directly cut after it has been formed to the required length. During the cutting process, the forming equipment does not need to be stopped, thereby improving the efficiency of steel pipe production. 2. In this invention, the equipment can automatically complete the positioning, cutting and dropping process of steel pipes without manual operation, which can effectively improve production efficiency and reduce the manpower input required for steel pipe production, and has good practical value. 3. In this invention, the use of a rangefinder and an automatic cutting machine to control the cutting length can ensure cutting accuracy and reduce material waste. Moreover, the equipment adopts a design with dual worktables, dual positioning mechanisms, and dual monitoring mechanisms, which can improve the stability and reliability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram of the positioning mechanism structure of the present invention; Figure 4 This is a schematic diagram of the adjustment mechanism structure of the present invention; Figure 5 This is a schematic diagram of the moving mechanism structure of the present invention; Figure 6 This is a schematic diagram of the monitoring mechanism structure of the present invention; Figure 7 This is a schematic diagram of the drive mechanism structure of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point B.

[0016] In the diagram: 1. Positioning mechanism; 11. Positioning column; 12. Adjustment mechanism; 121. Frustum; 122. Through hole; 123. Connecting plate; 124. Threaded hole; 13. Hexagonal prism; 14. First adjusting screw; 15. Fixing plate; 2. Moving mechanism; 21. Moving plate; 22. First moving block; 23. Slide groove; 24. Second moving block; 25. Vertical plate; 26. Electric telescopic rod; 27. Square block; 3. Automatic cutting machine; 4. Monitoring mechanism; 41. Bending rod; 42. Second adjusting screw; 43. Horizontal plate; 44. Rangefinder; 5. Drive mechanism; 51. Third adjusting screw; 52. Fixing block; 53. Guide rod; 54. Drive motor; 6. Workbench; 7. Connector; 8. Support leg; 9. Flat plate; 10. Fixture; 111. Control panel. Detailed Implementation

[0017] Please see Figure 1-8 The present invention provides a technical solution: A stainless steel pipe production and processing equipment and its preparation method include a workbench 6, a connector 7, and support legs 8. The upper side of the workbench 6 is bolted to a connector 7 for connection with a steel pipe forming device. A flat plate 9 is welded to the side of the workbench 6. Height-adjustable support legs 8 are welded to the bottom of both the workbench 6 and the flat plate 9. A positioning mechanism 1 is installed on the upper part of the workbench 6. A moving mechanism 2 is installed on the upper part of the flat plate 9 near the workbench 6. An automatic cutting machine 3 is installed on the end of the moving mechanism 2 near the workbench 6, and a monitoring mechanism 4 is installed on the end of the moving mechanism 2 away from the workbench 6. A drive mechanism 5 is installed at the bottom of the moving mechanism 2. A control panel 111 is fixedly connected to the upper side of the workbench 6. The moving mechanism 2 includes two moving plates 21, with the upper end of the moving plates 21... The positioning mechanism 1 is slidably connected to the side via the sliding groove 23. A vertical plate 25 is fixedly connected to one side of the upper end of the moving plate 21. The upper end of the vertical plate 25 is fixedly connected to the block 27 via an electric telescopic rod 26. A first moving block 22 is fixedly connected to one side of one moving plate 21, and a second moving block 24 is fixedly connected to one side of the other moving plate 21. The monitoring mechanism 4 includes a bent rod 41. A second adjusting screw 42 is threadedly connected to the inner side of one end of the bent rod 41. The other end of the second adjusting screw 42 is rotatably connected to the horizontal plate 43. A rangefinder 44 is fixedly connected to the middle of the horizontal plate 43. The driving mechanism 5 includes a third adjusting screw 51. One end of the third adjusting screw 51 is fixedly connected to the main shaft of the drive motor 54. The housing of the drive motor 54 is fixedly connected to the fixed block 52. A guide rod 53 is provided on one side of the third adjusting screw 51.

[0018] As a further implementation of this solution, the movable plate 21 is U-shaped and is slidably connected to the plate 9. A fixed bracket 10 for positioning the automatic cutting machine 3 is fixedly connected to one side of the upper end of the movable plate 21, and the other side of the upper end of the movable plate 21 is fixedly connected to the bent rod 41. The first movable block 22 is threadedly connected to the third adjusting screw 51, and the other end of the third adjusting screw 51 is rotatably connected to the worktable 6. The second movable block 24 is slidably connected to the guide rod 53. There are two fixed blocks 52, which are welded and fixed to the side of the plate 9. One end of the guide rod 53 is fixedly connected to the worktable 6, and the other end of the guide rod 53 is fixedly connected to one of the fixed blocks 52. The guide rod 53 and the third adjusting screw 51 are parallel to each other. The movable plate 21 can stably limit the monitoring mechanism 4 and the automatic cutting machine 3, and can also drive them to move stably. As a further implementation of this solution, there are two of each of the bending rod 41 and the second adjusting screw 42. The bending rod 41 and the second adjusting screw 42 correspond one-to-one. The bending rod 41 is L-shaped, and the included angle between the second adjusting screw 42 and the horizontal plate 43 is 90°. With the above settings, the distance between the rangefinder 44 and the moving mechanism 2 can be adjusted, and the stability during the adjustment process can be ensured. As a further implementation of this solution, the positioning mechanism 1 includes a positioning post 11. Adjustment mechanisms 12 are slidably connected to the outer sides of both the upper and lower ends of the positioning post 11. A fixing plate 15 is fixedly connected to the top of the positioning post 11. A first adjusting screw 14 is rotatably connected to the middle of the fixing plate 15. A hexagonal prism 13 is fixedly connected to the middle of the first adjusting screw 14. The adjustment mechanism 12 includes a frustum 121. A connecting plate 123 is fixedly connected to the upper end of the frustum 121. Both the frustum 121 and the connecting plate 123 have through holes 122 inside. A threaded hole 124 is opened in the middle of the connecting plate 123. The connecting plate 123 is threadedly connected to the first adjusting screw 14 through the threaded hole 124. Two positioning mechanisms 1 are provided, one installed on the upper end of the worktable 6 and the other inside the moving mechanism 2. The first adjusting screw 14 is installed inside the positioning mechanism 1 installed on the upper end of the worktable 6. The bottom end is rotatably connected to the worktable 6. The bottom end of the first adjusting screw 14 installed inside the positioning mechanism 1 inside the moving mechanism 2 is not in contact with the moving plate 21. There are four positioning columns 11 inside any positioning mechanism 1 and two adjusting mechanisms 12 inside any positioning mechanism 1. The positioning columns 11 installed inside the positioning mechanism 1 at the upper end of the worktable 6 are fixedly connected to the worktable 6. The positioning columns 11 installed inside the positioning mechanism 1 inside the moving mechanism 2 are slidably connected to the moving plate 21 through the slide groove 23. The top center of the fixed plate 15 installed inside the positioning mechanism 1 inside the moving mechanism 2 is welded and fixed to the block 27. Through the positioning mechanism 1 set above, the steel pipe at the outlet can be stably limited, the steel pipe can be positioned during the cutting process, and the steel pipe can be automatically dropped after the cutting is completed. As a further implementation of this solution, two flat plates 9 are provided, which are parallel to each other and form an angle of 90° between the flat plates 9 and the worktable 6. The gap between the flat plates 9 is 15cm, which can position the cut steel pipe and further improve the stability of the overall structure of the device. As a further implementation of this solution, S1: The steel pipe forming equipment discharges into the positioning mechanism 1 set at the upper end of the workbench 6, and then enters the positioning mechanism 1 set inside the moving mechanism 2. The formed steel pipe enters the positioning mechanism 1 and is positioned by the symmetrically arranged frustum 121, so that the steel pipe is always discharged horizontally. S2: The monitoring mechanism 4 monitors the discharge length of the steel pipe: When the steel pipe is discharged to the predetermined position of the distance measuring instrument 44, the distance measuring instrument 44 transmits the signal to the control panel 111. The control panel 111 controls the automatic cutting machine 3 and the drive motor 54 to work simultaneously. When the drive motor 54 is working, it drives the moving mechanism 2 and the automatic cutting machine 3 to move at the same speed as the steel pipe discharge speed. S3: After the steel pipe reaches the required length, the automatic cutting machine 3 moves and cuts the steel pipe. During the movement of the steel pipe, the automatic cutting machine 3 moves synchronously with the steel pipe to complete the cutting. After the cutting is completed, the automatic cutting machine 3 resets. At the same time, the electric telescopic rod 26 controls the positioning mechanism 1 set inside the moving mechanism 2 to move to both sides and no longer positions the steel pipe after the cutting is completed, so that the steel pipe falls from between the flat plates 9. S4: Cutting completed, moving mechanism 2 returns to its initial position, ready for the next cut: After the cut steel pipe falls from between the plates 9, the moving mechanism 2 returns to its initial position under the drive of the drive motor 54, ready for the next cut, and so on. With the above settings, the positioning, cutting and dropping of steel pipes can be completed automatically without manual operation, which can effectively improve production efficiency. At the same time, the use of a rangefinder and an automatic cutting machine to control the cutting length can ensure cutting accuracy and reduce material waste. Moreover, the equipment adopts a design with dual worktables, dual positioning mechanisms and dual monitoring mechanisms, which can improve the stability and reliability of the equipment.

[0019] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A stainless steel pipe production and processing equipment, comprising a workbench (6), connectors (7), and support legs (8), characterized in that: The upper side of the workbench (6) is fixedly connected with a connector (7) for connecting with the steel pipe forming equipment by bolts. A flat plate (9) is welded and fixed to the side of the workbench (6). The bottom of the workbench (6) and the flat plate (9) are both welded and fixed with height-adjustable support legs (8). A positioning mechanism (1) is installed on the upper end of the workbench (6). A moving mechanism (2) is installed on the upper end of the side of the flat plate (9) close to the workbench (6). An automatic cutting machine (3) is installed on the end of the moving mechanism (2) close to the workbench (6). A monitoring mechanism (4) is installed on the end of the moving mechanism (2) away from the workbench (6). A drive mechanism (5) is installed at the bottom of the moving mechanism (2). A control panel (111) is fixedly connected to the upper side of the workbench (6). The moving mechanism (2) includes two moving plates (21). A positioning mechanism (1) is slidably connected to the inner upper side of each moving plate (21) via a groove (23). A vertical plate (25) is fixedly connected to one side of the upper end of each moving plate (21). The upper end of the vertical plate (25) is fixedly connected to a block (27) via an electric telescopic rod (26). A first moving block (22) is fixedly connected to one side of one of the moving plates (21), and a second moving block (24) is fixedly connected to one side of the other moving plate (21). The monitoring mechanism (4) includes... A bent rod (41) has a second adjusting screw (42) threadedly connected to one end of its inner side. The other end of the second adjusting screw (42) is rotatably connected to a horizontal plate (43). A rangefinder (44) is fixedly connected in the middle of the horizontal plate (43). The drive mechanism (5) includes a third adjusting screw (51). One end of the third adjusting screw (51) is fixedly connected to the main shaft of a drive motor (54). The housing of the drive motor (54) is fixedly connected to a fixed block (52). A guide rod (53) is provided on one side of the third adjusting screw (51). The positioning mechanism (1) includes a positioning column (11), and an adjustment mechanism (12) is slidably connected to the outer side of the upper and lower ends of the positioning column (11). A fixing plate (15) is fixedly connected to the top of the positioning column (11), and a first adjusting screw (14) is rotatably connected to the middle of the fixing plate (15). A hexagonal prism (13) is fixedly connected to the middle of the first adjusting screw (14). The adjustment mechanism (12) includes a frustum (121), and a connecting plate (123) is fixedly connected to the upper end of the frustum (121). Both the frustum (121) and the connecting plate (123) have through holes (122) inside. The connecting plate (123) has a threaded hole (124) in the middle. The connecting plate (123) is threadedly connected to the first adjustment screw (14) through the threaded hole (124). Each of the positioning mechanisms (1) has four positioning columns (11) inside, and each of the positioning mechanisms (1) has two adjustment mechanisms (12) inside. The positioning columns (11) inside the positioning mechanism (1) installed on the upper end of the workbench (6) are fixedly connected to the workbench (6). The positioning columns (11) inside the positioning mechanism (1) installed inside the moving mechanism (2) are slidably connected to the moving plate (21) through the slide groove (23). The top center of the fixed plate (15) inside the positioning mechanism (1) installed inside the moving mechanism (2) is welded and fixed to the block (27).

2. The stainless steel pipe production and processing equipment according to claim 1, characterized in that: The movable plate (21) is U-shaped and is slidably connected to the plate (9). A fixed frame (10) for positioning the automatic cutting machine (3) is fixedly connected to one side of the upper end of the movable plate (21), and the other side of the upper end of the movable plate (21) is fixedly connected to the bent rod (41).

3. The stainless steel pipe production and processing equipment according to claim 2, characterized in that: The first moving block (22) is threadedly connected to the third adjusting screw (51), and the other end of the third adjusting screw (51) is rotatably connected to the worktable (6). The second moving block (24) is slidably connected to the guide rod (53). There are two fixed blocks (52), which are welded and fixed to the side of the plate (9). One end of the guide rod (53) is fixedly connected to the worktable (6), and the other end of the guide rod (53) is fixedly connected to one of the fixed blocks (52). The guide rod (53) and the third adjusting screw (51) are parallel to each other.

4. The stainless steel pipe production and processing equipment according to claim 3, characterized in that: Two of each of the bent rod (41) and the second adjusting screw (42) are provided. The bent rod (41) and the second adjusting screw (42) correspond one-to-one. The bent rod (41) is L-shaped. The included angle between the second adjusting screw (42) and the cross plate (43) is 90°.

5. The stainless steel pipe production and processing equipment according to claim 4, characterized in that: The positioning mechanism (1) is provided in two parts. The two positioning mechanisms (1) are respectively installed on the upper end of the workbench (6) and inside the moving mechanism (2). The bottom end of the first adjusting screw (14) installed inside the positioning mechanism (1) installed on the upper end of the workbench (6) is rotatably connected to the workbench (6). The bottom end of the first adjusting screw (14) installed inside the positioning mechanism (1) installed inside the moving mechanism (2) is not in contact with the moving plate (21).

6. The stainless steel pipe production and processing equipment according to claim 4, characterized in that: There are two plates (9), which are parallel to each other, and the angle between the plates (9) and the worktable (6) is 90°. The gap between the plates (9) is 15cm.

7. The cutting method of a stainless steel pipe production and processing equipment according to claim 1, characterized in that: S1: The steel pipe forming equipment discharges into the positioning mechanism (1) set at the upper end of the workbench (6), and then enters the positioning mechanism (1) set inside the moving mechanism (2). The formed steel pipe enters the positioning mechanism (1) and is positioned by the symmetrically arranged truncated cones (121) to keep the steel pipe horizontally discharged. S2: The monitoring mechanism (4) monitors the discharge length of the steel pipe: When the steel pipe is discharged to the predetermined position of the distance measuring instrument (44), the distance measuring instrument (44) transmits the signal to the control panel (111). The control panel (111) controls the automatic cutting machine (3) and the drive motor (54) to work at the same time. When the drive motor (54) is working, it drives the moving mechanism (2) and the automatic cutting machine (3) to move at the same speed as the steel pipe discharge speed. S3: After the steel pipe reaches the required length, the automatic cutting machine (3) moves and cuts the steel pipe: During the movement of the steel pipe, the automatic cutting machine (3) moves synchronously with the steel pipe to complete the cutting of the steel pipe. After the cutting is completed, the automatic cutting machine (3) resets, and at the same time, the electric telescopic rod (26) controls the positioning mechanism (1) set inside the moving mechanism (2) to move to both sides, no longer positioning the steel pipe after the cutting is completed, so that the steel pipe falls from between the flat plates (9); S4: Cutting completed, the moving mechanism (2) returns to its initial position and prepares for the next cut: After the cut steel pipe falls between the plates (9), the moving mechanism (2) returns to its initial position under the drive of the drive motor (54) and prepares for the next cut, and so on.

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