Cutting device for marine air valve steel bar

Abstract

The invention relates to the field of cutting devices, in particular to a marine air valve steel bar cutting device which comprises a cross beam frame, the cross beam frame slides on a supporting assembly and can automatically reset, a clamping mechanism for clamping a steel bar blank is arranged on the cross beam frame, and a cutting mechanism for cutting the steel bar blank is arranged above the cross beam frame. Two supporting arm screws are fixed to the front end of the cross beam frame in parallel, and limiting and conveying assemblies for limiting the front end of a steel bar blank and conveying the steel bar after the steel bar blank is cut off are arranged on the two supporting arm screws; cutting can be completed in the continuous extrusion state of the extruder, and the cutting efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of cutting devices, and in particular to a cutting device for marine air valve steel bars. Background Technology

[0002] During the processing of valve steel bars, the raw material undergoes heat treatment and then needs to be sent to a valve steel bar extruder for extrusion molding. After being extruded from the extruder, the formed valve steel bar billet needs to be cut into steel bars of the required length and packaged for transfer to the next process. Currently, existing cutting equipment requires control of the extruder to perform intermittent extrusion or short-term pauses when cutting valve steel bar billets, ensuring that the steel bar billet is in a static state during cutting, which results in low cutting efficiency. Summary of the Invention

[0003] To address the problems in the prior art, this invention proposes a cutting device for marine air valve steel bars, which can complete the cutting while the extruder is continuously extruding, thereby improving the cutting efficiency.

[0004] The present invention adopts the following technical solution: A cutting device for marine valve steel bars includes a crossbeam frame that slides on a support assembly and can automatically reset. The crossbeam frame is equipped with a clamping mechanism for clamping the steel bar blank, and a cutting mechanism for cutting the steel bar blank is located above the crossbeam frame. Two parallel support screws are fixed to the front end of the crossbeam frame, and the two support screws are equipped with a limiting and conveying assembly for limiting the front end of the steel bar blank and conveying the steel bar after cutting. The extruded steel bar blank, when inserted into the limiting and conveying assembly, causes the crossbeam frame to slide forward on the support assembly. After cutting, the support assembly pushes the crossbeam frame to automatically reset backward, thus completing the cutting while the extruder is continuously extruding, improving cutting efficiency.

[0005] Preferably, the support assembly includes two support legs arranged opposite each other and two smooth rods fixed parallel between the two support legs. The crossbeam slides on the two smooth rods. A spring I is provided between the crossbeam and the support legs located at the front end. The steel billet extruded by the extruder presses against the limiting conveying assembly, causing the crossbeam to slide forward. After the cutting and conveying are completed, the elastic force of the spring I will push the crossbeam to automatically slide back to its original position, carrying the clamping mechanism, the cutting mechanism and the limiting conveying assembly. This enables the extruder to continuously extrude steel billets while completing the cutting, thereby improving the cutting efficiency.

[0006] Preferably, the clamping mechanism includes two side frames that are arranged opposite to each other and slide on the crossbeam frame. Each of the two side frames is equipped with a jaw clamping block at its opposite end. The two jaw clamping blocks are arranged opposite to each other. During clamping, the two side frames are controlled to move closer to each other synchronously, so that the two jaw clamping blocks clamp the extruded steel bar billet.

[0007] Preferably, a spring II is provided between the two side frames; the elastic force of the spring II can push the two side frames to automatically separate, thereby improving the efficiency of the two jaw blocks in releasing the steel bar billet.

[0008] Preferably, a spring III is provided between the jaw clamping block and the corresponding side frame; the spring III increases the buffer stroke between the jaw clamping block and the corresponding side frame, so that when the side frame is controlled to approach the clamping, the movement distance of the side frame remains unchanged, enabling the device to adapt to the clamping of steel bars of different diameters.

[0009] Preferably, the cutting mechanism includes a vertical rod frame fixed on a crossbeam frame, a lifting frame that slides and limits the lifting on the vertical rod frame, and a cutting disc blade installed at the front end of the lifting frame; Preferably, both side frames have guide surfaces extending from the inside out at their upper ends, and the lower end of the lifting frame has a roller rotating at the guide surface. When the lifting frame descends, the two rollers contact and cooperate with the two guide surfaces to bring the two side frames closer together to clamp the steel billet, and then the cutting disc blade contacts the steel billet to complete the cutting. This allows the lifting frame to complete the clamping and cutting operations in one lifting motion. Preferably, the limiting conveying assembly includes two internally threaded tubes respectively threaded onto two support arm screws. A horizontal seat is rotatably connected to the two internally threaded tubes. A vertical frame is provided at the upper middle part of the horizontal seat. A rotating shaft is provided through the vertical frame from front to back. A circular seat is fixed at the rear end of the rotating shaft. Multiple levers are radially provided at the outer end of the circular seat. The multiple levers are evenly arranged circumferentially. A blocking plate is rotatably provided at the front end of the circular seat. A surrounding plate is fixed on the blocking plate to surround the outer ends of the multiple levers. An outlet is provided at the lower end of the surrounding plate. Rotating the internally threaded tubes can drive the horizontal seat to move back and forth, thereby adjusting the projection distance between the cutting disc and the blocking plate in the horizontal direction, and thus adjusting the length of the cut steel bar. A V-shaped groove is formed between two adjacent levers to limit the extrusion end of the steel bar blank, effectively reducing the vibration of the steel bar blank when the cutting disc cuts the steel bar blank, ensuring the flatness of the cut end face of the steel bar, and after cutting, the steel bar is retained by this V-shaped groove. As the rotating shaft rotates, the steel bar is transferred.

[0010] Preferably, a sleeve is fitted into the middle of the rotating shaft, and a threaded rod is fixed to the lower end of the sleeve. An adjusting nut is threaded onto the threaded rod, and the adjusting nut rotates on the horizontal seat. Rotating the adjusting nut controls the lifting and lowering movement of the circular seat and multiple dial plates, thereby adjusting the width of the V-groove at the extrusion end of the steel billet, ensuring that the width of the V-groove at the extrusion end of the steel billet is compatible with the diameter of the steel billet, ensuring the limiting effect, and enabling the device to adapt to the cutting of steel billets of different diameters.

[0011] Preferably, a transmission wheel is mounted on the rear end of the rotating shaft via a one-way bearing, and a rack frame that meshes with the transmission wheel slides vertically through the upper end of the vertical frame. A spring IV is provided between the rack frame and the vertical frame, which can push the rack frame down when the lifting frame descends. After the rotating shaft rotates to a certain angle, it maintains the rotated state, thereby completing the transfer of the steel bar. At the same time, another V-groove is aligned with the steel bar blank to prepare for the next cutting.

[0012] The beneficial effects of this invention are as follows: 1. The clamping mechanism, cutting mechanism, and limiting conveying components are carried by the crossbeam frame and slide on the support components and can automatically reset, so that the extruder can continuously extrude steel billets while cutting, thereby improving cutting efficiency; 2. The clamping operation of the clamping mechanism, the cutting operation of the cutting mechanism, and the conveying operation and limit preparation of the limit conveying component can be realized through a single downward movement of the lifting frame. 3. By radially setting multiple baffles on the round seat to form multiple V-shaped grooves, the end of the steel billet can be limited, ensuring a flat cut end face while also enabling the transfer of the steel billet. This ensures that the extruder can continuously extrude the steel billet while completing the cutting, thus improving cutting efficiency. Attached Figure Description

[0013] Figure 1 and Figure 2 This is a schematic diagram of a cutting device for marine air valve steel bars; Figure 3 This is a structural diagram of the supporting components and crossbeams; Figure 4 This is a structural diagram of the clamping mechanism and the cutting mechanism; Figure 5 This is a partial structural diagram of the limit conveyor assembly. Figure 1 ; Figure 6 This is a partial structural diagram of the limit conveyor assembly. Figure 2 ; Figure 7 This is a partial structural diagram of the limit conveyor assembly. Figure 3 .

[0014] In the picture: 1. Support leg frame; 2. Smooth rod; 3. Spring I; 4. Horizontal beam frame; 5. Vertical rod frame; 6. Support arm screw; 7. Side frame; 701. Guide surface; 8. Spring II; 9. Jaw clamp; 10. Spring III; 11. Lifting frame; 12. Roller shaft; 13. Cutting disc blade; 14. Horizontal seat; 15. Internal threaded tube; 16. Vertical frame; 17. Round seat; 18. Pulley plate; 19. Blocking plate; 20. Enclosure plate; 2001. Outlet; 21. Rotating shaft; 22. Sleeve; 23. Transmission wheel; 24. Rack frame; 25. Spring IV; 26. Adjusting nut; 27. Threaded rod. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] Reference Figure 1-7 A cutting device for steel bars of marine air valves, characterized in that it includes a crossbeam frame 4, which slides on a support assembly and can automatically reset. The crossbeam frame 4 is provided with a clamping mechanism for clamping the steel bar blank, and a cutting mechanism for cutting the steel bar blank is provided above the crossbeam frame 4. Two support arm screws 6 are fixed in parallel at the front end of the crossbeam frame 4. The two support arm screws 6 are provided with a limiting and conveying assembly for limiting the front end of the steel bar blank and conveying the steel bar after cutting. The extruded steel billet is inserted into the limiting conveying assembly through the clamping mechanism, forming a limit on the extruded end of the steel billet. At this time, the limiting conveying assembly will drive the crossbeam frame 4 to slide forward on the support assembly. Then, the clamping mechanism will be controlled to clamp and fix the steel billet. Then, the cutting mechanism will cut the steel billet between the clamping mechanism and the limiting conveying assembly to obtain a steel rod. The steel rod is left in the limiting conveying assembly for conveying. At the same time, the cutting mechanism and the clamping mechanism will be reset in sequence. The support assembly will push the crossbeam frame 4 to automatically reset backward. The above steps will be repeated to cut the steel rod. This forms a cutting process that is completed while the extruder is continuously extruding, thus improving the cutting efficiency.

[0017] Reference Figure 3 The support assembly includes two support legs 1 arranged opposite each other, and two smooth rods 2 fixed in parallel between the two support legs 1. The crossbeam 4 slides on the two smooth rods 2. A spring I 3 is provided between the crossbeam 4 and the support legs 1 located at the front end. When the steel billet extruded by the extruder is pressed against the limiting conveying component, as the steel billet continues to be extruded, the limiting conveying component will drive the crossbeam frame 4 to slide forward on the two guide rods 2 against the elastic force of spring I3 until the cutting and conveying are completed. Then, the elastic force of spring I3 will push the crossbeam frame 4 to automatically carry the clamping mechanism, cutting mechanism and limiting conveying component to slide back to the original position, thereby repeating the above operation. This enables the extruder to continuously extrude steel billets while completing the cutting, thus improving the cutting efficiency.

[0018] Reference Figure 4The clamping mechanism includes two side frames 7 that are arranged opposite to each other and slide on the crossbeam frame 4. Each of the two side frames 7 is equipped with a jaw clamping block 9 at its opposite end. The two jaw clamping blocks 9 are arranged opposite to each other. When clamping, the two side frames 7 are controlled to move closer and closer at the same time to form a clamping of the extruded steel bar billet by the two jaw clamping blocks 9. The jaw clamping blocks 9 are provided with a V-shaped opening on their opposite sides to ensure that the two jaw clamping blocks 9 can stably clamp the extruded steel bar billet while ensuring that the steel bar billet is in a straight state.

[0019] Furthermore, a spring II8 is provided between the two side frames 7; the elastic force of the spring II8 can push the two side frames 7 to automatically separate, thereby improving the efficiency of the two jaw clamps 9 in releasing the steel bar billet.

[0020] Furthermore, a spring Ⅲ10 is provided between the jaw clamping block 9 and the corresponding side frame 7; the spring Ⅲ10 increases the buffer stroke between the jaw clamping block 9 and the corresponding side frame 7, so that when the side frame 7 is brought close to clamping, the movement distance of the side frame 7 remains unchanged, enabling the device to adapt to the clamping of steel bars of different diameters.

[0021] Reference Figure 4 The cutting mechanism includes a vertical rod frame 5 fixed on the crossbeam frame 4, a lifting frame 11 that slides and is limited in height on the vertical rod frame 5, and a cutting disc blade 13 is installed at the front end of the lifting frame 11. The lifting frame 11 is equipped with a power motor that drives the cutting disc 13. By starting the power motor, the cutting disc 13 can be driven to rotate at high speed. When the lifting frame 11 descends to the point where the cutting disc 13 contacts the steel bar blank, the cutting of the steel bar blank is completed. An electric telescopic rod or hydraulic cylinder is installed between the upper end of the vertical frame 5 and the lifting frame 11 to control the lifting of the lifting frame 11.

[0022] Furthermore, both side frames 7 have guide surfaces 701 extending from the inside out at their upper ends, and rollers 12 rotate at the lower end of the lifting frame 11 corresponding to the guide surfaces 701. When the lifting frame 11 descends, it simultaneously drives the two rollers 12 to descend, causing them to first contact the two guide surfaces 701. As the lifting frame 11 continues to descend, the two rollers 12 roll on the two guide surfaces 701, creating pressure on the two side frames 7 and bringing them closer together. This allows the lifting frame 11 to descend during cutting, first driving the two side frames 7 closer together to clamp the steel billet, and then allowing the cutting disc 13 to contact the steel billet to complete the cutting. Thus, one lifting action of the lifting frame 11 completes the clamping and cutting operations in sequence. It should be noted that the guide surface 701 consists of an inclined portion and a vertical portion. The inclined portion is located at the upper end and works with the roller 12 to press the side frame 7 closer. The vertical portion is located at the lower end of the inclined portion and works with the roller 12 to restrict the position of the side frame 7, ensuring that the side frame 7 moves the same distance each time it is clamped.

[0023] Reference Figure 4-7 The limiting conveying assembly includes two internally threaded tubes 15 respectively threaded to two support arm screws 6. A horizontal seat 14 is rotatably connected to the two internally threaded tubes 15. A vertical frame 16 is provided at the upper middle part of the horizontal seat 14. A rotating shaft 21 is provided through the front and rear of the vertical frame 16. A round seat 17 is fixed at the rear end of the rotating shaft 21. A plurality of levers 18 are radially provided at the outer end of the round seat 17. The plurality of levers 18 are evenly arranged circumferentially. A blocking plate 19 is rotatably provided at the front end of the round seat 17. A surrounding plate 20 is fixed on the blocking plate 19 to surround the outer ends of the plurality of levers 18. An outlet 2001 is provided at the lower end of the surrounding plate 20. The vertical frame 16 is used to mount the rotating shaft 21, positioning the rotating shaft 21 in a forward-backward state. The blocking plate 19 in front of it forms a barrier against the extrusion end of the steel billet. When the extrusion end of the steel billet presses against the blocking plate 19, the blocking plate 19 will drive the crossbeam frame 4 via the vertical frame 16 to press the spring I3 forward on the two smooth rods 2. At this time, since the cutting disc 13 moves forward and backward with the crossbeam frame 4, the horizontal projection distance between the cutting disc 13 and the blocking plate 19 remains unchanged, meaning the length of the cut steel billet remains constant. As the cutting is completed and the limit for cutting the steel billet is lost, the spring I3 will push the crossbeam frame 4 back to its original position, causing the blocking plate 19 to move backward. Plate 19 returns to its original position, waiting for the new steel bar blank to be extruded and pressed against the end. Then the above steps are repeated to achieve cutting while the extruder is continuously extruding, thus improving cutting efficiency. It should be noted that rotating the internal threaded tube 15 causes the internal threaded tube 15 to move axially on the support arm screw 6 through the threaded engagement between the internal threaded tube 15 and the support arm screw 6, i.e., to move back and forth. This, in turn, drives the cross seat 14 to move back and forth, thereby adjusting the horizontal projection distance between the cutting disc 13 and the blocking plate 19, and thus adjusting the length of the cut steel bar. The two internal threaded tubes 15 are connected by synchronous transmission via belt or chain. A V-groove is formed between two adjacent deflector plates 18. When the extruded end of the steel billet is pressed against the blocking plate 19, the extruded end of the steel billet is located in one of the V-grooves, thereby limiting the extruded end of the steel billet. In conjunction with the clamping mechanism, the vibration of the steel billet is effectively reduced when the cutting disc 13 cuts the steel billet, ensuring the flatness of the cut end face of the steel billet. After cutting, the steel billet is retained through this V-groove. By controlling the rotation of the rotating shaft 21 to rotate at a certain angle, the steel billet is transferred. At the same time, the other V-groove is aligned with the steel billet, preparing for the limiting of the extruded end of the new steel billet. With the intermittent rotation of the rotating shaft 21, in conjunction with the enclosure plate 20 surrounding the V-groove, the deflector plate 18 carries the steel billet and gradually rotates and descends until it moves to the outlet 2001, where it is automatically discharged and collected for easy transfer to the next process.

[0024] It should be noted that the front end face of the blocking plate 19 is provided with a protruding ridge, which is limited to the lifting and sliding of the horizontal seat 14 to ensure that the blocking plate 19 will not rotate with the round seat 17.

[0025] Furthermore, a sleeve 22 is sleeved in the middle of the rotating shaft 21, and a threaded rod 27 is fixed at the lower end of the sleeve 22. An adjusting nut 26 is threadedly connected to the threaded rod 27, and the adjusting nut 26 rotates on the cross seat 14. Rotating the adjusting nut 26 causes the threaded rod 27 to move axially through the threaded engagement between the adjusting nut 26 and the threaded rod 27. This, in turn, drives the rotating shaft 21 to move up and down on the vertical frame 16, thereby driving the round seat 17 and multiple lever plates 18 to move up and down. Since the V-groove formed by two adjacent lever plates 18 is narrower as it gets closer to the axis of the rotating shaft 21, the width of the V-groove at the extrusion end of the steel billet is adjusted to ensure that the width of the V-groove at the extrusion end of the steel billet is compatible with the diameter of the steel billet, thus ensuring the limiting effect and enabling the device to adapt to the cutting of steel billets of different diameters.

[0026] Furthermore, a transmission wheel 23 is mounted on the rear end of the rotating shaft 21 via a one-way bearing, and a rack frame 24 that is vertically slidably connected to the transmission wheel 23 slides through the upper end of the vertical frame 16. A spring IV 25 is provided between the rack frame 24 and the vertical frame 16, and the lifting frame 11 can push the rack frame 24 to descend when it descends. After the lifting frame 11 descends to the point where the cutting disc 13 completes the cutting, the lifting frame 11 continues to descend. The forward-extending front plate at the upper end of the lifting frame 11 will contact the upper end of the rack frame 24 and push the rack frame 24 to descend against the elastic force of the spring IV 25. Then, the meshing transmission wheel 23 drives the rotating shaft 21 to rotate at a certain angle. The lifting frame 11 then rises again, and the elastic force of the spring IV 25 causes the rack frame 24 to rise to the highest point with the lifting frame 11, waiting for the next downward press of the front plate. When the rack frame 24 rises, it also meshes with the transmission wheel 23 to rotate. However, due to the presence of the one-way bearing, the transmission wheel 23 cannot drive the rotating shaft 21 to rotate, thus keeping the rotating shaft 21 in the state after rotation. At this time, the rotating shaft 21 completes the transfer of the steel bar, and at the same time, another V-groove is aligned with the steel bar blank, preparing for the next cutting.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cutting device for a marine valve steel rod, characterized by, The beam frame (4) is slid on the support assembly and can be automatically reset, the clamping mechanism for clamping the steel bar blank is arranged on the beam frame (4), the cutting mechanism for cutting the steel bar blank is arranged above the beam frame (4), the front end of the beam frame (4) is fixed in parallel with two supporting arm screws (6), and the limiting and conveying assembly for limiting the front end of the steel bar blank and conveying the steel bar after cutting is arranged on the two supporting arm screws (6).

2. The cutting device for a marine valve steel rod according to claim 1, characterized in that, The support assembly comprises two supporting leg frames (1) arranged opposite to each other, and two light poles (2) fixed in parallel between the two supporting leg frames (1), the beam frame (4) is slid on the two light poles (2), and the beam frame (4) is provided with a spring I (3) between the beam frame (4) and the supporting leg frame (1) located at the front end.

3. The apparatus according to claim 1, wherein The clamping mechanism comprises two side frames (7) arranged opposite to each other and slid on the beam frame (4), the opposite ends of the two side frames (7) are each provided with a jaw clamping block (9), and the two jaw clamping blocks (9) are arranged opposite to each other.

4. The apparatus according to claim 3, wherein The two side frames (7) are provided with a spring II (8) therebetween.

5. The apparatus according to claim 3, wherein The spring III (10) is arranged between the jaw clamping block (9) and the corresponding side frame (7).

6. The cutting device for marine valve steel rod according to any one of claims 3-5, characterized in that, The cutting mechanism comprises a vertical rod frame (5) fixed vertically on the beam frame (4), the vertical rod frame (5) is slid in a lifting and limiting manner with a lifting frame (11), and the front end of the lifting frame (11) is provided with a cutting disc cutter (13).

7. The apparatus according to claim 6, wherein The upper end of each of the two side frames (7) is provided with a guide surface (701) from inside to outside, and the lower end of the lifting frame (11) is rotatably provided with a roller shaft (12) corresponding to the guide surface (701).

8. The apparatus according to claim 6, wherein the apparatus is characterized by: The limiting and conveying assembly comprises two internal threaded pipes (15) threadedly connected to the two supporting arm screws (6) respectively, the two internal threaded pipes (15) are rotatably connected with a cross seat (14), the cross seat (14) is provided with a vertical frame (16) on the upper end of the middle portion, the vertical frame (16) is provided with a rotating shaft (21) penetrating therethrough in front and back, the rear end of the rotating shaft (21) is fixedly provided with a circular seat (17), a plurality of push plates (18) are radially arranged on the outer end of the circular seat (17), the plurality of push plates (18) are uniformly arranged in a circumferential direction, the front end of the circular seat (17) is rotatably provided with a blocking plate (19), the blocking plate (19) is fixedly provided with a surrounding plate (20) surrounding the outer end of the plurality of push plates (18), and the lower end of the surrounding plate (20) is provided with an outlet (2001).

9. The apparatus according to claim 8, wherein the apparatus is characterized by: The middle portion of the rotating shaft (21) is sleeved with a sleeve pipe (22), the lower end of the sleeve pipe (22) is fixedly provided with a threaded rod (27), the threaded rod (27) is threadedly connected with an adjusting nut (26), and the adjusting nut (26) is rotatably arranged on the cross seat (14).

10. The apparatus according to claim 8, wherein the apparatus is characterized by: The rear end of the rotating shaft (21) is rotatably provided with a transmission wheel (23) through a one-way bearing, the upper end of the vertical frame (16) is slidably provided with a rack frame (24) engagedly connected with the transmission wheel (23), the vertical frame (16) is provided with a spring IV (25) between the rack frame (24) and the vertical frame (16), and the lifting frame (11) can push the rack frame (24) to descend when descending.

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