Metal product trimming device

Abstract

The invention relates to the technical field of cutting disc cutting, discloses a metal product edge cutting device, and solves the problems that when an existing edge cutting device is used for cutting a metal plate, a cutting piece irregularly swings, the length is increased, a potential safety hazard area is enlarged, an electric wire is easily cut, a machine table is easily scratched, and people are easily injured. Corresponding rotating operation is carried out through the first rotating shaft and the second rotating shaft, when the moving direction of the transverse frame is consistent with the moving direction of a cutting piece, the pair of cutters are driven by the transverse frame to be close to each other in the moving process and shear the cutting piece moving in the same direction, after shearing is completed, the cutters are away from each other in the moving process, and when the moving direction of the transverse frame is opposite to the moving direction of the cutting piece, the cutters can return. According to the cutting device, the pair of cutters are arranged in the vertical direction, the cutters continue to move away vertically in the preliminary horizontal movement process, it is ensured that the cutting piece is located at the preset position between the pair of cutters, the pair of cutters continuously shear the advancing cutting piece into multiple sections through the circulation process, and therefore the situation that the cutting piece swings irregularly due to the fact that the cutting piece is too long is avoided, and then potential safety hazards caused by irregular swinging are eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of disc knife cutting, in particular to a metal product trimming device. Background Art

[0002] During the production of metal discs, the metal sheet needs to be cut through a trimming device to form a circular structure. The currently used trimming device uses two disc wheels that rotate in opposite directions, generating a shear force that gradually pushes from the outside toward the center of the metal sheet, thereby trimming the rotating metal sheet and ultimately cutting it into a circular shape.

[0003] However, when cutting metal sheets, the cutting path of this progressively advancing disc knife presents a spiral shape (such as Figure 11 (as shown). During the cutting process, the cut metal sheet is continuously discharged from the other side of the circular cutter in a long, continuous strip, oscillating erratically. Due to the sharp edges of the cut metal sheet, this erratic oscillation poses a significant safety hazard. Specifically, the cut sheet could cut equipment wires, scratch the surface of the machine, and even cause personal injury. More seriously, as the length of the cut sheet increases, the area covered by its erratic oscillation also expands, further increasing the area of safety hazards. Summary of the Invention

[0004] The purpose of the present invention is to provide a metal product trimming device, which solves the problem that when existing trimming devices cut metal plates, the cut pieces swing irregularly and increase in length, resulting in the expansion of the safety hazard area, which is easy to cut wires, scratch machines and injure people.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a metal product trimming device, comprising: The upper and lower corresponding clamping mechanisms and rotating base mechanisms cooperate to clamp the metal sheet and cause the metal sheet to rotate horizontally along the middle; The trimming mechanism includes a first disc cutter and a second disc cutter respectively mounted on one side through a first rotating shaft and a second rotating shaft, and rotating in opposite directions. The trimming mechanism drives the first and second rotating disc cutters to advance toward the metal sheet, cutting the rotating metal sheet and producing cut pieces. The shredding mechanism includes a movable frame assembly assembled between rotating shaft 1 and rotating shaft 2, and a cutting assembly assembled at one end of the movable frame assembly. The movable frame assembly includes a pair of parallel cross frames, and the pair of cross frames cooperate with rotating shaft 1 and rotating shaft 2 to drive the cutting assembly to continuously shear the moving pieces.

[0006] As a further description of the above technical solution: The two cross frames are eccentrically rotationally assembled on the corresponding rotating shafts I and II through the bearings II in their respective middle parts.

[0007] As a further description of the above technical solution: Longitudinal shaft rods are connected to both ends of a pair of the cross frames. One end of the longitudinal shaft rod is fixedly connected to one cross frame, and the other end is slidably connected to the other cross frame through a linear bearing I. The linear bearing I is fixed on the cross frame. The longitudinal shaft rods are used to limit the two cross frames in motion to maintain the corresponding parallel state.

[0008] As a further description of the above technical solution: The cutting assembly includes a pair of cutting knives. The two cutting knives are correspondingly assembled on one side of the two cross frames through their respective fixing seats. Driven by the corresponding cross frames, the two cutting knives perform adaptive moving shearing on the moving cutting piece.

[0009] As a further description of the above technical solution: The cutting edges of a pair of the cutting knives are in a symmetrically inclined state.

[0010] As a further description of the above technical solution: A piece clamping assembly is assembled on one side of the cutting assembly. Before the cutting assembly is about to shear the cutting piece, the piece clamping assembly clamps the cutting piece so that the cutting piece and the cutting assembly move synchronously.

[0011] As a further description of the above technical solution: The piece clamping assembly includes two mounting frames assembled on one side of the two cross frames. The two mounting frames are symmetrically arranged up and down. Vertical movable support rods are assembled on the mounting frames. Clamping blocks are fixed to the adjacent ends of the two support rods. Spring I for pushing the two clamping blocks to clamp each other is sleeved on the surfaces of the two support rods respectively. The clamping surfaces of the clamping blocks protrude from the cutting edges of the cutting knives.

[0012] As a further description of the above technical solution: The corresponding clamping surfaces of the two clamping blocks are inclined, so that when the cutting piece is clamped, the side of the cutting piece away from the cutting knife bends downward.

[0013] As a further description of the above technical solution: A guiding assembly is arranged on one side of the cutting assembly. The guiding assembly guides the cutting piece to pass through the shearing area of the cutting assembly.

[0014] As a further description of the above technical solution: The guiding assembly includes a guiding plate I. One end of the guiding plate I close to the disc knife II bends upward. Guiding plates II bending outward are assembled on both sides of the guiding plate I. The guiding plate I is assembled on one side of a pair of cross frames through a fixing assembly, so that the guiding plate I moves horizontally with the cross frames and maintains the height position. The fixing assembly includes a positioning frame movably inserted through the middle parts of a pair of cross frames. Spring II is sleeved on each end of the positioning frame. The guiding plate I is assembled on one side of the cutting assembly through a support frame fixedly connected to the middle part of the positioning frame.

[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: 1. During the corresponding rotation operations of the first rotating shaft and the second rotating shaft, when the cross frame is in the same direction as the moving direction of the cut piece, a pair of cutting knives are driven by the cross frame. First, they approach each other during movement to cut the cut piece moving in the same direction. After the cutting is completed, they move away from each other during movement. When the cross frame is in the opposite direction to the moving direction of the cut piece, they will return to the starting position, and the cutting knives continue to move vertically away during the initial horizontal movement to ensure that the cut piece is located at the preset position between the pair of cutting knives. Through the cyclic process, the pair of cutting knives continuously cut the advancing cut piece into multiple segments, thereby preventing the cut piece from swinging irregularly due to excessive length and eliminating the potential safety hazards caused thereby.

[0016] 2. The cut piece is adaptively clamped by the clip component to ensure that the cut piece in the middle of the cutting component moves synchronously with the cutting component, thereby ensuring that the cutting component can smoothly cut the cut piece. And when the clip component releases the cut piece, it can also ensure that the cut piece is guided to the middle of the two cutting knives, providing guarantee for the subsequent cutting task of the cutting component.

[0017] 3. The first guide plate is assembled on one side of a pair of cross frames through the fixing component, enabling it to move horizontally with the cross frame and maintain the height position, thereby ensuring the accurate docking of the cut piece guided by the first guide plate and the cutting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the edge cutting mechanism structure of the present invention; Figure 3 is a front view structure schematic diagram of the scrap material mechanism and the edge cutting mechanism of the present invention; Figure 4 is a back view structure schematic diagram of the scrap material mechanism and the edge cutting mechanism of the present invention; Figure 5 is a schematic diagram of the structure of the scrap material mechanism assembled between the first rotating shaft and the second rotating shaft of the present invention; Figure 6 is a schematic diagram of the scrap material mechanism structure of the present invention; Figure 7 is a front view schematic diagram of the cutting component and the clip component of the present invention; Figure 8 is a side view schematic diagram of the cutting component and the clip component of the present invention; Figure 9 is a schematic diagram of the structure of the first disc knife and the second disc knife of the present invention; Figure 10 of the present invention Figure 9 is an enlarged schematic diagram of A; Figure 11This is a schematic structural diagram of an existing metal sheet being cut; Figure 12 This is a schematic diagram of the state where the scrap material mechanism of the present invention is in a separated relationship; Figure 13 This is a schematic diagram of the state where the scrap material mechanism of the present invention is located on the left side; Figure 14 This is a schematic diagram of the state where the scrap material mechanism of the present invention is in a close relationship; Figure 15 This is a schematic diagram of the state where the scrap material mechanism of the present invention is located on the right side.

[0019] In the figure: 10, trimming mechanism; 11, first rotating shaft; 12, second rotating shaft; 13, first circular saw blade; 14, second circular saw blade; 20, scrap material mechanism; 21, movable frame assembly; 211, cross frame; 212, vertical shaft rod; 213, first linear bearing; 214, second bearing; 22, cutting assembly; 221, cutting knife; 222, fixed seat; 23, clip assembly; 231, clamping block; 232, support rod; 233, first spring; 234, assembly frame; 24, guiding assembly; 241, positioning frame; 242, second spring; 243, support frame; 244, first guiding plate; 245, second guiding plate; 30, pressing mechanism; 40, rotating base mechanism; 50, metal sheet; 51, cut piece. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0022] Combined with Figures 1 - 15 , a metal product trimming device includes: A pressing mechanism 30 and a rotating base mechanism 40 that are corresponding up and down. The rotating base mechanism 40 is composed of a rotating seat and a servo motor for driving the rotating seat to rotate at the lower side. The pressing mechanism 30 is composed of a telescopic member (such as an electric cylinder or an air cylinder, etc.) and a turntable rotatably connected to the output end. The telescopic member pushes the turntable to cooperate with the rotating seat to clamp the metal sheet 50, and the servo motor controls the rotation of the rotating seat to cause the metal sheet 50 to rotate horizontally along the middle; The trimming mechanism 10 includes a machine table, and a first circular cutter 13 and a second circular cutter 14 which are respectively assembled on one side of the machine table through a first rotating shaft 11 and a second rotating shaft 12 and rotate towards each other. The machine table is slidably assembled on the tabletop. Another telescopic member is provided on one side of the machine table. The telescopic member pushes the trimming mechanism 10 to move, driving the rotating first circular cutter 13 and second circular cutter 14 to advance towards the metal sheet 50, cutting the rotating metal sheet 50, and generating cut pieces 51. During the cutting, the length of the cut pieces 51 continuously increases and moves continuously in the corresponding direction; The scrap material mechanism 20 includes a movable frame assembly 21 assembled between the first rotating shaft 11 and the second rotating shaft 12, and a cutting assembly 22 assembled at one end of the movable frame assembly 21. The movable frame assembly 21 includes a pair of parallel cross frames 211. The two cross frames 211 are eccentrically rotatably assembled on the corresponding first rotating shaft 11 and second rotating shaft 12 through bearings two 214 in the middle of each of them. Longitudinal shaft rods 212 are connected to both ends of the pair of cross frames 211. One end of the longitudinal shaft rod 212 is fixedly connected to one cross frame 211, and the other end is slidably connected to the other cross frame 211 through a first linear bearing 213. The first linear bearing 213 is fixedly assembled on the cross frame 211. The longitudinal shaft rod 212 is used to limit the two cross frames 211 in motion to maintain the corresponding parallel state; The cutting assembly 22 includes a pair of cutting knives 221. The two cutting knives 221 are correspondingly assembled on one side of the two cross frames 211 through their respective fixed seats 222. The two cutting knives 221 are driven by the corresponding cross frames 211 to perform adaptively moving shearing on the moving cut pieces 51.

[0023] As Figures 12 to 15 shown, when the first rotating shaft 11 and the second rotating shaft 12 perform corresponding rotation operations (as shown by the arrows in the figure), the cross frames 211 move along a circular trajectory and always maintain a horizontal parallel state. The circular motion trajectories of the two cross frames 211 are symmetrically distributed up and down. Combining Figure 13 → Figure 14 → Figure 15 in sequence, the cross frames 211 move from left to right, and their moving direction is the same as the moving direction of the cut pieces 51. During this process, the pair of cutting knives 221 are driven by the cross frames 211 to first approach each other during the movement and perform shearing on the cut pieces 51 moving in the same direction (as Figure 14 shown, the vertical dotted line indicates the position where the pair of cutting knives 221 shear the cut pieces 51, and this position will be referred to as the shearing part hereinafter). After the shearing is completed, the cutting knives 221 move away from each other during the movement to prevent the cut part of the cut pieces 51 during subsequent advancement from abutting against the side surface of the cross frames 211, thereby avoiding the cut pieces 51 from being misdirected to other positions and unable to pass normally between the two cutting knives 221.

[0024] Subsequently, combining Figure 15 → Figure 12 → Figure 13In the order, the cross beam 211 returns from the right side to the left side, and its moving direction is opposite to the moving direction of the cut piece 51. During this process, a pair of cutting knives 221 continue to move vertically away from each other during the preliminary horizontal movement, and their horizontal moving direction is opposite to the moving direction of the cut piece 51, further ensuring that the cut piece 51 is always in the middle position between the pair of cutting knives 221. Through the above cyclic actions, the pair of cutting knives 221 can continuously shear the advancing cut piece 51 into multiple segments, effectively avoiding the irregular swinging of the cut piece 51 due to its too long length, and thus eliminating the potential safety hazards caused thereby.

[0025] Further, as Figure 8 shown, the cutting edges of the pair of cutting knives 221 are in a symmetrically inclined state. When cutting the cut piece 51, its cutting principle is similar to that of scissors, which can better form a shearing force to ensure that the cut piece 51 can be smoothly cut off.

[0026] As Figure 9 and Figure 10 shown, there is an intersection area between the first disc cutter 13 and the second disc cutter 14 (such as the shaded part in Figure 10 ). The second disc cutter 14 is located on the side close to the metal sheet 50, while the first disc cutter 13 is located on the side far from the metal sheet 50. A cutting part is formed on the left side of the intersection part of the first disc cutter 13 and the second disc cutter 14 for shearing the metal sheet 50.

[0027] However, there are some factors that may affect the normal cutting effect of the cutting assembly 22 during the cutting process, as follows: On the one hand, the generation speed of the cut piece 51 is consistent with the arc surface rotation speed of the second disc cutter 14, so the horizontal moving speed of the cut piece 51 will be greater than the horizontal moving speed of the cutting knife 221. On the other hand, the top arc surface of the second disc cutter 14 is higher than the cutting part, and the cut piece 51 after cutting will be pushed up by the top of the second disc cutter 14. These factors may all cause the cutting assembly 22 to fail to achieve the ideal cutting effect in the subsequent cutting process.

[0028] It should be noted that the first disc cutter 13 and the second disc cutter 14 have the same diameter, and the rotation speed of the metal sheet 50 is adapted to the rotation speeds of the first disc cutter 13 and the second disc cutter 14, so as to ensure that the first disc cutter 13 and the second disc cutter 14 can smoothly cut the metal sheet 50.

[0029] In addition, it is necessary to further clarify the definitions of relevant terms: the shearing part refers to the part where the pair of cutting knives 221 shear the cut piece 51; the cutting part refers to the part where the first disc cutter 13 and the second disc cutter 14 cut the metal sheet 50.

[0030] Regarding the problem that the horizontal movement speed of the cut piece 51 is greater than the horizontal movement speed of the cutting knife 221, thus affecting the smooth cutting of the cut piece 51 by the cutting assembly 22, the following solution is adopted in this embodiment: As Figures 6 to 8 shown, a clip component 23 is assembled on one side of the cutting assembly 22. The clip component 23 includes two mounting frames 234, which are respectively assembled on one side of the two cross frames 211 and are symmetrically distributed up and down. A vertically movable support rod 232 is assembled on each mounting frame 234, and clip blocks 231 are fixed to the adjacent ends of the two support rods 232. Springs 233 are sleeved on the surfaces of the support rods 232 respectively, and the function of the springs 233 is to push the two clip blocks 231 to clamp each other. The clamping surface of the clip block 231 protrudes beyond the cutting edge of the cutting knife 221. In this way, even if the moving speed of the cut piece 51 is greater than the moving speed of the cutting knife 221, the clip component 23 can clamp the cut piece 51 before the cutting assembly 22 is about to cut the cut piece 51, ensuring that the cut piece 51 in the middle of the cutting assembly 22 moves synchronously with the cutting assembly 22, so as to ensure that the cutting assembly 22 can smoothly cut the cut piece 51. In addition, after the clip component 23 releases the cut piece 51, it can also ensure that the cut piece 51 is guided to the middle of the two cutting knives 221, providing guarantee for the subsequent cutting task of the cutting assembly 22.

[0031] Furthermore, the clamping surfaces of the two clip blocks 231 are in a corresponding inclined state. When clamping the cut piece 51, the side of the cut piece 51 away from the cutting knife 221 will bend downward. In this way, after a pair of clip blocks 231 clamp the cut piece 51, although the moving speed of one side of the cut piece 51 is fast and the length continues to increase, the increased length will be adapted to the curved arc of the cut piece 51. As the clip blocks 231 release the cut piece 51, the cut piece 51 will automatically return to the horizontal state due to its own elastic force (similar to the restoration of a bent elastic sheet), and will actively extend into the middle of the two cutting knives 221 at the initial stage when the clip blocks 231 release the cut piece 51, ensuring that the cut piece 51 accurately extends into the cutting part of the cutting assembly 22, thus further ensuring the normal progress of the subsequent cutting operation.

[0032] Regarding the problem that the cut piece 51 is pushed up by the top of the second circular knife 14 and thus affects its smooth entry into the cutting part of the cutting assembly 22, the following solution is adopted in this embodiment: As Figure 5 and Figure 6As shown, a guiding component 24 is provided on one side of the cutting component 22. The guiding component 24 includes a first guiding plate 244, one end of which close to the second circular cutter 14 bends upward, capable of guiding the upwardly warped cut piece 51 so that it smoothly enters the cutting part of the cutting component 22 along the lower surface of the first guiding plate 244. The two sides of the first guiding plate 244 are equipped with outwardly curved second guiding plates 245 for preventing the cut piece 51 from deviating to both sides and avoiding the cut piece 51 deviating from the cutting part of the cutting component 22. The first guiding plate 244 is assembled on one side of a pair of cross frames 211 through a fixing component, enabling it to horizontally move with the cross frames 211 and maintain its height position, thereby ensuring that the cut piece 51 guided by the first guiding plate 244 can be accurately docked with the cutting component 22 (if the first guiding plate 244 is only fixed to the side of the machine table, the distance between one end of it and the cutting component 22 and the clip component 23 will be sometimes far and sometimes near, and the precise docking effect will become worse).

[0033] It should be noted that the position movement areas of the support frame 243 and the first guiding plate 244 should be avoided from colliding with the first circular cutter 13 and the second circular cutter 14.

[0034] The fixing component includes a positioning frame 241, which is movably inserted through the middle parts of a pair of cross frames 211. Springs two 242 are sleeved on both ends of the positioning frame 241, and the two springs two 242 push the fixing block in the middle of the positioning frame 241 to maintain its position in the middle of a pair of cross frames 211 through elastic action. The middle part of the positioning frame 241 assembles the first guiding plate 244 on one side of the cutting component 22 through a fixedly connected support frame 243, thereby ensuring that the horizontal height of the first guiding plate 244 is maintained at a preset position.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A trimming device for metal products, characterized in that, Comprising: A pressing mechanism (30) and a rotating base mechanism (40) that correspond up and down, which cooperate to clamp the metal sheet (50) and cause the metal sheet (50) to rotate horizontally along the middle; A trimming mechanism (10), including a disc cutter one (13) and a disc cutter two (14) that are respectively assembled on one side through a rotating shaft one (11) and a rotating shaft two (12) and rotate towards each other. The trimming mechanism (10) drives the rotating disc cutter one (13) and disc cutter two (14) to advance towards the metal sheet (50), cuts the rotating metal sheet (50), and generates cut pieces (51); A scrap material mechanism (20), including a movable frame assembly (21) assembled between the rotating shaft one (11) and the rotating shaft two (12), and a cutting assembly (22) assembled at one end of the movable frame assembly (21). The movable frame assembly (21) includes a pair of parallel cross frames (211). The pair of cross frames (211) cooperate with the rotating shaft one (11) and the rotating shaft two (12) to drive the cutting assembly (22) to continuously shear the moving cut pieces (51) in a coordinated movement.

2. The edge trimming device for metal products according to claim 1, wherein: The two cross frames (211) are eccentrically rotatably assembled on the corresponding rotating shaft one (11) and rotating shaft two (12) through bearings two (214) in their respective middles.

3. A metal product trimming device according to claim 2, characterized in that: Both ends of the pair of cross frames (211) are connected with longitudinal shaft rods (212). One end of the longitudinal shaft rod (212) is fixedly connected to one cross frame (211), and the other end is slidably connected to the other cross frame (211) through a linear bearing one (213). The linear bearing one (213) is fixed on the cross frame (211). The longitudinal shaft rod (212) is used to limit the two cross frames (211) in motion to maintain the corresponding parallel state.

4. The edge trimming device for metal products according to claim 3, characterized in that: The cutting assembly (22) includes a pair of cutting knives (221). The two cutting knives (221) are correspondingly assembled on one side of the two cross frames (211) through their respective fixing seats (222). The two cutting knives (221) follow the corresponding cross frames (211) to drive and shear the moving cut pieces (51) in an adapted movement.

5. The trimming device for metal products according to claim 4, characterized in that: The cutting edges of the pair of cutting knives (221) are in a symmetrically inclined state.

6. The trimming device for metal products according to claim 3, characterized in that: A clip component (23) is assembled on one side of the cutting assembly (22). The clip component (23) clamps the cut pieces (51) before the cutting assembly (22) is about to shear the cut pieces (51), so that the cut pieces (51) and the cutting assembly (22) move synchronously.

7. A metal product trimming device according to claim 6, characterized in that: The clip component (23) includes two mounting frames (234) assembled on one side of the two cross frames (211). The two mounting frames (234) are symmetrically arranged up and down. A vertically movable support rod (232) is assembled on the mounting frame (234). A clamping block (231) is fixed at one adjacent end of the two support rods (232). A spring one (233) that correspondingly pushes the two clamping blocks (231) to clamp each other is sleeved on the surfaces of the two support rods (232). The clamping surface of the clamping block (231) protrudes from the cutting edge of the cutting knife (221).

8. The trimming device for metal products according to claim 7, wherein: The clamping surfaces of the two clamping blocks (231) are correspondingly inclined, so that when the cut pieces (51) are clamped, the side of the cut pieces (51) away from the cutting knife (221) bends downwards.

9. The trimming device for metal products according to claim 3, wherein: A guiding component (24) is provided on one side of the cutting component (22), and the guiding component (24) guides the cut piece (51) to pass through the cutting area of the cutting component (22).

10. A metal product trimming device according to claim 9, characterized in that: The guiding component (24) includes a first guiding plate (244). One end of the first guiding plate (244) close to the second circular knife (14) bends upward. The two sides of the first guiding plate (244) are equipped with second guiding plates (245) that bend outward. The first guiding plate (244) is assembled on one side of a pair of cross frames (211) through a fixing component, so that the first guiding plate (244) moves horizontally with the cross frames (211) and maintains its height position. The fixing component includes a positioning frame (241) that is movably inserted into the middle of a pair of cross frames (211). Two springs (242) are sleeved on both ends of the positioning frame (241). The middle of the positioning frame (241) assembles the first guiding plate (244) on one side of the cutting component (22) through a fixedly connected support frame (243).

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