Trimming device for plate production line

Abstract

The utility model relates to the technical field of production line plate trimming, in particular to a trimming device for a plate production line. The device comprises two supports which are oppositely arranged and a rotating roller which is arranged between the two supports and is used for conveying plates, and further comprises a trimming mechanism and a protection mechanism, the bottom of the trimming mechanism is provided with a trimming knife used for trimming plates. The protection mechanism comprises a protection cover and a driving assembly, the protection cover is arranged corresponding to the position of the trimming knife, and the driving assembly can drive the protection cover to rotate in a pitching mode. Through the arrangement of the protective cover and the driving assembly, the safety of operators is effectively protected. When the trimming knife works, the driving assembly can drive the protective cover to rotate to the working position, so that when the trimming knife trims flash materials or burrs of a plate, the flash materials or the burrs splash, certain damage to other surrounding equipment, the working environment and operators is avoided, and safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal trimming technology in production lines, and in particular to a trimming device for sheet metal production lines. Background Technology

[0002] In sheet metal production lines, the trimming device includes trimming knives, which are tools used to process and trim the edges of metal workpieces. They are mainly used to remove burrs, sharp angles, and blades from metal, wood, and other workpieces to ensure product shaping and to cut off any excess material or uneven burrs around the product to make its surface smoother and more precise.

[0003] In existing technologies, most trimming devices do not have protective measures. Once the trimming knife is trimming the overflow or burrs on the board, the overflow or burrs are very likely to fly everywhere along an unpredictable trajectory. In this process, the flying overflow or burrs will not only cause some pollution to the surrounding working environment, but also cause some damage to other machines and some injury to the surrounding workers, resulting in low safety. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a trimming device for a sheet metal production line, which solves the technical problem that the current trimming device splashes or produces burrs, which causes certain pollution to the surrounding working environment, damage to other machines, and injury to the surrounding workers.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] This utility model provides a trimming device for a sheet metal production line, including two opposing supports and a rotating roller installed between the two supports. The rotating roller is used to transport the sheet metal. The device also includes a trimming mechanism and a protective mechanism. The bottom of the trimming mechanism is provided with a trimming knife for trimming the sheet metal. The protective mechanism includes a protective cover and a drive assembly. The protective cover is positioned corresponding to the position of the trimming knife, and the drive assembly can drive the protective cover to pitch and rotate.

[0009] Preferably, the protective cover is U-shaped, and the protective cover can pitch and rotate between the working position and the stop position. When the protective cover is in the working position, it is farther away from the trimming knife relative to when it is in the stop position. When the protective cover is in the working position, the concave part of the U-shape faces downward. When the protective cover is in the stop position, the concave part of the U-shape faces the trimming knife.

[0010] Preferably, when the protective cover is in the working position, the protective cover is perpendicular to the trimming knife; when the protective cover is in the stopped position, the protective cover is parallel to the trimming knife.

[0011] Preferably, the drive assembly is mounted on the side wall of the trimming mechanism away from the rotating roller, and the protective cover is connected to the drive end of the drive assembly; the drive assembly includes a fixed base, a cylinder, two fixed plates, and a linkage mechanism; the fixed base is mounted on the side wall of the trimming mechanism away from the rotating roller, the fixed end of the cylinder is mounted on the bottom of the fixed base, the extended end of the cylinder is connected to one end of the linkage mechanism, the other end of the linkage mechanism is connected to one end of the protective cover, the tops of the two fixed plates are connected to the bottom of the fixed base, and the two fixed plates are located on both sides of the cylinder and fit against the cylinder; the extended end of the cylinder can extend to drive the linkage mechanism to move, thereby driving the protective cover to pitch and rotate.

[0012] Preferably, the linkage mechanism includes a first link, a second link, and a mounting plate; one end of the first link is hinged to the extended end of the cylinder, the second link is rotatably supported between the two fixed plates, one end of the second link is hinged to the other end of the first link, the other end of the second link is connected to one side wall of the mounting plate, and the side wall of the mounting plate away from the second link is connected to one end of the protective cover; the mounting plate constitutes the driving end of the driving assembly; each of the two fixed plates has a limiting groove on one side wall at the bottom, and when the mounting plate abuts against the limiting groove, the protective cover is in the working position.

[0013] Preferably, the cylinder and the fixed seat, the fixed seat and the trimming mechanism, the two fixed plates and the fixed seat, and the protective cover and the mounting plate are all installed in a detachable manner.

[0014] Preferably, the trimming device further includes a mounting rod, a drive switch, and a driver;

[0015] The mounting rod is installed between the two supports, positioned above and parallel to the rotating roller, and the trimming mechanism is mounted on the mounting rod. The drive switch is rotatably mounted on the mounting rod, and is closer to one of the supports than the trimming mechanism. The driver is mounted on the support and electrically connected to the drive assembly. When the drive switch is rotated, it triggers the driver, which in turn controls the drive assembly to drive the protective cover.

[0016] Preferably, the actuator is a roller lever type mechanical valve, which is located below the drive switch; when the drive switch is rotated, the drive switch presses the roller of the roller lever type mechanical valve, triggering the roller lever type mechanical valve.

[0017] Preferably, the drive switch includes a rotating part and a pressure block; the rotating part is rotatably sleeved on the mounting rod, one end of the pressure block is connected to the rotating part, and the other end of the pressure block is located above the roller and can press the roller when the rotating part rotates; when the roller is pressed, the drive assembly drives the protective cover to move from the stop position to the working position; when the roller is released from pressure, the roller rebounds, and the drive assembly drives the protective cover to move from the working position to the stop position. The rotating part includes a first rotating block and a second rotating block; the first rotating block and the second rotating block are arranged opposite to each other and are detachably connected, the opposite side walls of the first rotating block and the second rotating block are both arc-shaped, and the arc-shaped walls fit against the outer wall of the mounting rod; the driver is detachably mounted on the support.

[0018] Preferably, the trimming device is used in a flooring production line.

[0019] (3) Beneficial effects

[0020] The beneficial effects of the utility model are:

[0021] This invention effectively protects operator safety by incorporating a protective cover and a drive assembly. When the trimming blade is not in operation, the protective cover safeguards it, ensuring it remains protected during downtime and preventing accidental injury, thus enhancing equipment safety and preventing accidental activation. When the trimming blade is in operation, the drive assembly rotates the protective cover to the working position, preventing spillage or burrs from flying off the material during trimming, thereby avoiding damage to surrounding equipment, the work environment, and operators, and improving safety. This invention features a simple structure, is safe and reliable, reduces the impact of external factors on the trimming blade, and further protects the trimming accuracy. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a trimming device for a sheet metal production line according to the present invention.

[0023] Figure 2 This is a three-dimensional schematic diagram showing the connection between the trimming mechanism and the protective mechanism of a trimming device for a sheet metal production line according to this utility model.

[0024] Figure 3 This is a three-dimensional schematic diagram of the protective mechanism of a trimming device for a sheet metal production line according to the present invention.

[0025] Figure 4 This is a three-dimensional schematic diagram of a drive assembly for a trimming device used in a sheet metal production line according to the present invention.

[0026] Figure 5 This is a three-dimensional schematic diagram of the other side of a trimming device for a sheet metal production line according to the present invention.

[0027] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0028] [Explanation of Labels in the Attached Image]

[0029] 1: Support; 2: Rotary roller; 3: Trimming mechanism; 31: Trimming knife; 4: Protective mechanism; 41: Protective cover; 42: Drive assembly; 421: Fixed seat; 422: Cylinder; 423: Fixed plate; 4231: Limiting groove; 424: Linkage mechanism; 4241: First link; 4242: Second link; 4243: Mounting plate; 5: Mounting rod; 6: Drive switch; 61: Rotating part; 611: First rotating block; 612: Second rotating block; 62: Pressure block; 7: Roller lever type mechanical valve; 71: Roller. Detailed Implementation

[0030] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0031] Example 1

[0032] like Figures 1-6 As shown in this embodiment, an edge-trimming device for an SPC board production line is described. SPC flooring, short for Stone Plastic Composite, is a composite board made by uniformly mixing calcium powder and thermoplastic polymer materials and then extruding them at high temperature. Of course, this invention is not limited to this; as long as the following structure is applicable, the edge-trimming device can also be applied to other types of flooring production lines, or even production lines for boards with other functions.

[0033] The trimming device in this embodiment includes two opposing supports 1 and a rotating roller 2 installed between the two supports 1. The rotating roller 2 is used to transport the sheet metal. It also includes a trimming mechanism 3 and a protective mechanism 4. A trimming blade 31 for trimming the sheet metal is provided at the bottom of the trimming mechanism 3. The protective mechanism 4 includes a protective cover 41 and a drive assembly 42. The protective cover 41 is positioned corresponding to the trimming blade 31, and the drive assembly 42 can drive the protective cover 41 to tilt and rotate. By providing the protective cover 41 and the drive assembly 42, the safety of the operator is effectively protected. When the trimming blade 31 is not in operation, the protective cover 41 can protect the trimming blade 31, ensuring that the trimming blade 31 is always protected during shutdown, avoiding the risk of accidental injury, enhancing the safety performance of the equipment, and preventing accidental contact. When the trimming knife 31 is working, the drive assembly 42 can drive the protective cover 41 to rotate to the working position to prevent the trimming knife 31 from splashing when trimming the overflow or burrs of the board, thereby avoiding damage to other equipment, working environment and operators, and improving safety.

[0034] Furthermore, the protective cover 41 is U-shaped, and it tilts and rotates between the working position and the stopped position. When in the working position, the protective cover 41 is further away from the trimming knife 31 than when in the stopped position. In the working position, the concave part of the protective cover 41 faces downwards (this "facing downwards" includes both tilted downwards and vertical downwards). This prevents the trimming knife 31 from splashing material or burrs onto the surrounding work environment, other equipment, or injuring workers when trimming the side of the sheet metal, effectively preventing contamination of the surrounding work environment, damage to other equipment, and personnel, thus improving safety. In the stopped position, the concave part of the protective cover 41 faces the trimming knife 31, protecting the trimming knife 31 from accidental contact or contact by workers, thus improving safety.

[0035] Furthermore, when the protective cover 41 is in the working position, it is perpendicular to the trimming blade 31 so that it can prevent splashing of material or burrs when the trimming blade 31 is trimming excess material or burrs, which could cause injury to the environment, equipment, and personnel. When the machine is in the stopped position, the protective cover 41 is parallel to the trimming blade 31 to protect the trimming blade 31 and prevent others from accidentally touching it.

[0036] Furthermore, the drive assembly 42 is mounted on the side wall of the trimming mechanism 3 away from the rotating roller 2, and the protective cover 41 is connected to the drive end of the drive assembly 42. The drive assembly 42 includes a fixed base 421, a cylinder 422, two fixed plates 423, and a linkage mechanism 424.

[0037] Specifically, the fixing seat 421 is installed on the side wall of the trimming mechanism 3 away from the rotating roller 2. The trimming mechanism 3 has a housing, and the fixing seat 421 is detachably fixed to the housing by bolts. At the same time, the fixing end of the cylinder 422 is installed at the bottom of the fixing seat 421. Thus, the protective mechanism is integrated into one unit and can be added to the existing trimming mechanism 3 or replaced.

[0038] More specifically, the extended end of cylinder 422 is connected to one end of linkage mechanism 424, and the other end of linkage mechanism 424 is connected to one end of protective cover 41. The tops of both fixing plates 423 are connected to the bottom of fixing base 421. The two fixing plates 423 are located on both sides of cylinder 422 and fit against cylinder 422, thereby stabilizing cylinder 422, preventing cylinder 422 from shaking during operation, improving stability, and making the installation of cylinder 422 more secure. The extended end of cylinder 422 can extend to drive linkage mechanism 424 to move, thereby driving protective cover 41 to pitch and rotate. By using cylinder 422 as a power source, in conjunction with linkage mechanism 424, the pitch and rotation of protective cover 41 can be achieved, allowing protective cover 41 to quickly and accurately switch between working and stopped positions as needed. This not only improves the operational flexibility of the equipment but also ensures the smoothness and reliability of the switching process. Meanwhile, during the operation of the trimming knife 31, the protective cover 41 can effectively block splashed overflow or burrs, further ensuring the safety of the operator.

[0039] Furthermore, the linkage mechanism 424 includes a first link 4241, a second link 4242, and a mounting plate 4243. One end of the first link 4241 is hinged to the extended end of the cylinder 422. The second link 4242 is rotatably supported between two fixed plates 423. One end of the second link 4242 is hinged to the other end of the first link 4241. The other end of the second link 4242 is connected to one side wall of the mounting plate 4243. The side wall of the mounting plate 4243 away from the second link 4242 is connected to one end of the protective cover 41. The mounting plate 4243 constitutes the driving end of the drive assembly 42. By setting up a first connecting rod 4241, a second connecting rod 4242, and a mounting plate 4243, when the cylinder 422 extends, it drives the first connecting rod 4241 to rotate around its hinge with the extended end of the cylinder 422, and moves downward with the extended end of the cylinder 422. At the same time, it causes the hinge with the second connecting rod 4242 to move downward. The first connecting rod 4241 then applies a downward pressure to the hinge with the second connecting rod 4242, thereby causing the second connecting rod 4242 to rotate around its axis at the hinge with the two fixed plates 423. This causes the mounting plate 4243 to rotate with the rotation of the second connecting rod 4242, thus causing the protective cover 41 to rotate with the rotation of the mounting plate 4243, realizing the conversion of the protective cover 41 from the stopped position to the working position. When the machine stops, the extended end of cylinder 422 retracts, causing the first connecting rod 4241 to rise. Simultaneously, the first connecting rod 4241 applies a pulling force to the hinge point between itself and the second connecting rod 4242, causing the hinge point to rise along with the first connecting rod 4241. This causes the second connecting rod 4242 to rotate the mounting plate 4243 around the axis of the hinge point between the second connecting rod 4242 and the two fixed plates 423, thereby rotating the protective cover 41 from the working position to the stopped position, thus achieving the transition of the protective cover 41 from the working position to the stopped position. Each of the two fixed plates 423 has a limiting groove 4231 on one side wall at the bottom. When the mounting plate 4243 abuts against the limiting groove 4231, the protective cover 41 is in the working position. By setting the limiting groove 4231, the mounting plate 4243 can only rotate to a position perpendicular to the trimming blade 31, thereby rotating the protective cover 41 to a position perpendicular to the trimming blade 31, thus protecting the protective cover 41 from splashes or burrs generated during the operation of the trimming blade 31. Furthermore, through the action of the limiting groove 4231, the rotation range of the mounting plate 4243 is 0°-90°, that is, the rotation range of the protective cover 41 is 0°-90°.

[0040] Furthermore, the cylinder 422 and the fixed seat 421, the fixed seat 421 and the trimming mechanism 3, the two fixed plates 423 and the fixed seat 421, and the protective cover 41 and the mounting plate 4243 are all detachable, which facilitates installation and disassembly. This allows the cylinder 422, the fixed seat 421, the fixed seat 421, the protective cover 41 and the mounting plate 4243 to be installed on any suitable trimming device, thereby improving applicability.

[0041] Furthermore, the trimming device also includes a mounting rod 5, a drive switch 6, and a driver.

[0042] Specifically, the mounting rod 5 is installed between two supports 1, above the rotating roller 2 and parallel to it. The trimming mechanism 3 is mounted on the mounting rod 5. The drive switch 6 is rotatably mounted on the mounting rod 5, and is closer to one support 1 than the trimming mechanism 3. The driver is mounted on the support 1, allowing operators to easily operate the drive switch 6, simplifying operation. The driver is electrically connected to the drive assembly 42. When the drive switch 6 is rotated, it triggers the driver, which in turn controls the drive assembly 42 to drive the protective cover 41. By setting the drive switch 6 and the driver, the cylinder 422 can be started and stopped. Rotating the drive switch 6 triggers the driver, which sends a signal to the cylinder 422, causing it to extend and retract. This, in turn, drives the protective cover 41 to rotate via the first connecting rod 4241, the second connecting rod 4242, and the mounting plate 4243, effectively preventing splashing or burrs from the trimming knife 31 during material trimming.

[0043] Furthermore, the actuator is a roller lever type mechanical valve 7, which is located below the drive switch 6. When the drive switch 6 is rotated, it presses the roller 71 of the roller lever type mechanical valve 7, triggering the valve. The structure of the roller lever type mechanical valve 7 is well-known and will not be described in detail here. Meanwhile, the communication and control between the actuator, especially the roller lever type mechanical valve 7, and the cylinder are achievable by those skilled in the art based on existing technology and are beyond the scope of this invention.

[0044] When the drive switch 6 is turned, the roller 71 of the roller lever type mechanical valve 7 located below it is directly pressed. This direct mechanical connection method can immediately trigger the roller lever type mechanical valve 7 to act, reducing the delay in the signal transmission process and improving the system's response speed. Moreover, the roller lever type mechanical valve 7 usually has high durability and wear resistance, and can work stably for a long time in harsh working environments, extending the overall service life of the equipment.

[0045] Furthermore, the drive switch 6 includes a rotating part 61 and a pressure block 62. The rotating part 61 is rotatably mounted on the mounting rod 5. One end of the pressure block 62 is connected to the rotating part 61, and the other end of the pressure block 62 is located above the roller 71 and can press the roller 71 when the rotating part 61 rotates. The pressure block 62 can be a T-shaped block, with its short side connected to the rotating part 61, making the pressure block 62 more securely installed. The shape of the pressure block 62 is not limited here; it can be of various shapes. When the roller 71 is pressed, the drive assembly 42 drives the protective cover 41 from the stop position to the working position. When the pressure on the roller 71 is released, the roller 71 rebounds, and the drive assembly 42 drives the protective cover 41 from the working position to the stop position. By setting the pressure block 62 to directly press the roller 71 on the roller lever type mechanical valve 7, a direct mechanical method is adopted, that is, the roller lever type mechanical valve 7 is triggered by the contact of the pressure block 62, which is more reliable than the electronic control system. It is not easily affected by electromagnetic interference and does not rely on power supply or complex circuits, so it can maintain stable operation in various working environments. The rotating part 61 includes a first rotating block 611 and a second rotating block 612. The first rotating block 611 and the second rotating block 612 are arranged opposite to each other and are detachably connected. The opposite side walls of the first rotating block 611 and the second rotating block 612 are arc-shaped, and the arc-shaped walls fit against the outer wall of the mounting rod 5, so as to facilitate the rotation of the first rotating block 611 and the second rotating block 612, thereby driving the pressure block 62 to rotate, and thus realizing that the pressure block 62 presses the roller 71, so that the roller lever type mechanical valve 7 transmits a signal to the cylinder 422 to drive the cylinder 422 to extend and retract. The driver is detachably mounted on the support 1, allowing it to be installed on other devices, thus improving its versatility.

[0046] Based on the above structure, the working principle of a trimming device for a sheet metal production line in this embodiment is as follows:

[0047] like Figures 1-6As shown, when the trimming knife 31 is first rotated to the trimming working position via the trimming mechanism 3, the operator simultaneously rotates the first rotating block 611 and the second rotating block 612, causing the first rotating block 611 and the second rotating block 612 to drive the pressure block 62 to rotate around the axis of the mounting rod 5. This causes the pressure block 62 to press the roller 71, causing the roller 71 to move downwards. This, in turn, activates the roller lever-type mechanical valve 7, transmitting an electrical signal to the cylinder 422. This causes the extended end of the cylinder 422 to extend downwards, driving the first connecting rod 4241 to rotate around its hinge point with the extended end of the cylinder 422. The extended end of 422 moves downward, simultaneously causing the hinge joint between the second link 4242 and the first link 4241 to move downward. The first link 4241 then applies a downward pressure to the hinge joint between the second link 4242 and the first link 4241, causing the second link 4242 to rotate around its axis at the hinge joint with the two fixed plates 423. This causes the mounting plate 4243 to rotate with the rotation of the second link 4242, thereby causing the protective cover 41 to rotate with the rotation of the mounting plate 4243, thus changing the protective cover 41 from the stop position to the working position, i.e., rotating 90° perpendicular to the trimming knife 31. At this time, the sheet material is located above the rotating roller 2 and is conveyed against the outer wall of the rotating roller 2. The trimming knife 31 trims the overflow or burrs on both sides of the sheet material, and the protective cover 41 protects against splashing overflow or burrs.

[0048] When the production line stops and trimming is not required (i.e., when the trimming device is stopped), the first rotating block 611 and the second rotating block 612 are rotated. This causes the first rotating block 611 and the second rotating block 612 to move the pressure block 62 away from the roller 71, thus releasing the roller 71. At this time, the roller lever-type mechanical valve 7 transmits a signal to the cylinder 422, and the extended end of the cylinder 422 immediately retracts, causing the first connecting rod 4241 to rise. Simultaneously, the first connecting rod 4241 applies a pulling force to the hinge joint between the first connecting rod 4241 and the second connecting rod 4242, causing the first connecting rod 4241 to... The hinge joint of the second link 4242 rises as the first link 4241 rises, thereby causing the second link 4242 to drive the mounting plate 4243 to rotate around the axis of the hinge joint between the second link 4242 and the two fixed plates 423, so as to drive the protective cover 41 to rotate from the working position to the stopping position, that is, to drive the protective cover 41 to rotate 90°, from the position perpendicular to the trimming knife 31 to the position parallel to the trimming knife 31, so that the protective cover 41 encloses the trimming knife 31 and prevents the staff from accidentally touching the trimming knife 31 and causing injury.

[0049] This utility model has a simple structure, is safe and reliable, reduces the impact of external factors on the trimming knife 31, and further protects the trimming accuracy of the trimming knife 31.

[0050] In addition, such as Figure 1As shown, the trimming mechanism in this embodiment includes a lateral adjustment component, a lifting component, and an axial adjustment component. It should be noted that the following content represents conventional technology, but is not limited to the following structures; other structures capable of achieving the following functions may also be used.

[0051] Specifically, the lateral adjustment assembly includes a first handwheel, a first threaded rod, a first slider, and a second slider. The first handwheel is rotatably mounted on the side wall of the support away from the mounting rod. The first threaded rod is located inside the mounting rod, with one end passing through the support and connected to the first handwheel, and the other end rotatably connected to the inner wall of the mounting rod. The first handwheel can drive the first threaded rod to rotate. The first slider is sleeved on the first threaded rod and located inside the mounting rod, while the second slider is sleeved on the outer wall of the mounting rod. The first and second sliders are positioned opposite each other and secured by multiple bolts. Multiple elongated holes are provided on the mounting rod, and the bolts used to secure the first and second sliders are located within these holes. The lifting assembly is mounted on one side wall of the second slider via an axial adjustment assembly, and a trimming blade is vertically inserted into the bottom of the lifting assembly. When the first handwheel is turned, the first threaded rod rotates. At this time, the first slider and the first threaded rod form a screw-nut structure. Due to the rotation of the first threaded rod, the first slider moves laterally along the axis of the first threaded rod, thereby driving the second slider to move laterally. This, in turn, drives the axial adjustment component and the lifting component to move with the movement of the second slider, thereby changing the lateral position of the trimming knife.

[0052] The axial adjustment assembly includes an indexing plate with multiple arc-shaped holes. The indexing plate is detachably mounted to one side wall of the second slider via bolts passing through the arc-shaped holes. The lifting assembly is detachably mounted to the side wall of the indexing plate away from the second slider. The indexing plate allows the trimming blade to rotate circumferentially around its axis, thereby changing the angle between the trimming blade and the sheet metal. When the side wall of the sheet metal is beveled or has other shapes, the angle of the trimming blade can be changed via the indexing plate to further trim excess material or burrs on the side wall of the sheet metal.

[0053] The lifting assembly includes a second handwheel and a second threaded rod. The trimming knife includes a blade and a blade, wherein the second threaded rod and a portion of the blade are located within a housing, which is connected to the side wall of the indexing plate away from the mounting rod. The blade is detachably mounted to the bottom of the blade via a clamping member. The blade has a lifting space inside, and the bottom of the second threaded rod is placed within the lifting space and threadedly engaged with it. Thus, the blade forms a screw-nut structure with the second threaded rod through the lifting space. The top of the second threaded rod passes through the housing and connects to the second handwheel. The second handwheel drives the second threaded rod to rotate, allowing the blade to move vertically up and down according to the spatial distance of the lifting space, thereby driving the blade to move vertically up and down. This allows the blade's vertical position to be adjusted according to the thickness of the sheet metal and the shape of the sheet metal sidewall, thus more effectively trimming excess material or burrs on the sheet metal sidewall. Additionally, the trimming mechanism also includes a third handwheel, a worm gear, and a worm shaft. The device comprises a mounting rod with one end passing through a support. A worm gear is fitted onto the end of the mounting rod extending beyond the support. A worm shaft is perpendicular to the mounting rod, and the worm gear and worm shaft mesh. A third handwheel is connected to one end of the worm. The third handwheel drives the worm to rotate. Because the worm and worm gear mesh, the rotation of the worm drives the worm to rotate, which in turn drives the mounting rod to rotate around its own axis. Due to the connection between the first and second sliders, the first and second sliders rotate with the rotation of the mounting rod, thereby driving the lifting assembly, axial adjustment assembly, and trimming cutter to rotate around the axis of the mounting rod. This changes the angle between the vertical centerline of the trimming cutter and the axis of the mounting rod, adapting to various processing requirements, including straight cutting, beveling, and chamfering. This increases the versatility of the trimming device, enabling it to handle plates of different shapes and structures, improving the equipment's versatility and applicability. Furthermore, the angle range is between 45° and 90°, allowing the trimming cutter to better cut into the material, reducing tearing and burrs during the cutting process, and improving the smoothness and aesthetics of the cut surface.

[0054] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A trimming device for a sheet metal production line, comprising two opposing supports (1) and a rotating roller (2) installed between the two supports (1), the rotating roller (2) being used to convey the sheet metal, characterized in that, It also includes an edge trimming mechanism (3) and a protective mechanism (4); The bottom of the trimming mechanism (3) is provided with a trimming knife (31) for trimming the board material; The protective mechanism (4) includes a protective cover (41) and a drive assembly (42). The protective cover (41) is positioned corresponding to the trimming knife (31), and the drive assembly (42) can drive the protective cover (41) to pitch and rotate.

2. The trimming device for a sheet metal production line as described in claim 1, characterized in that: The protective cover (41) is U-shaped and can pitch and rotate between the working position and the stop position. When the protective cover (41) is in the working position, it is further away from the trimming knife (31) than when it is in the stop position. When the protective cover (41) is in the working position, the recessed part of the U-shape faces downward; When the protective cover (41) is in the stopped position, the concave part of the U-shaped recess faces the trimming knife (31).

3. The trimming device for a sheet metal production line as described in claim 2, characterized in that: When the protective cover (41) is in the working position, the protective cover (41) is perpendicular to the trimming knife (31); When the machine is in the stopped position, the protective cover (41) is parallel to the trimming knife (31).

4. The trimming device for a sheet metal production line as described in claim 2, characterized in that: The drive assembly (42) is mounted on the side wall of the trimming mechanism (3) away from the rotating roller (2), and the protective cover (41) is connected to the drive end of the drive assembly (42); The drive assembly (42) includes a fixed base (421), a cylinder (422), two fixed plates (423), and a linkage mechanism (424); The fixed seat (421) is installed on the side wall of the trimming mechanism (3) away from the rotating roller (2). The fixed end of the cylinder (422) is installed at the bottom of the fixed seat (421). The extended end of the cylinder (422) is connected to one end of the linkage mechanism (424). The other end of the linkage mechanism (424) is connected to one end of the protective cover (41). The tops of the two fixed plates (423) are connected to the bottom of the fixed seat (421). The two fixed plates (423) are located on both sides of the cylinder (422) and are in contact with the cylinder (422). The extended end of the cylinder (422) can extend to drive the linkage mechanism (424) to move, thereby driving the protective cover (41) to pitch and rotate.

5. The trimming device for a sheet metal production line as described in claim 4, characterized in that: The linkage mechanism (424) includes a first link (4241), a second link (4242), and a mounting plate (4243); One end of the first connecting rod (4241) is hinged to the extended end of the cylinder (422), and the second connecting rod (4242) is rotatably supported between the two fixed plates (423). One end of the second connecting rod (4242) is hinged to the other end of the first connecting rod (4241), and the other end of the second connecting rod (4242) is connected to one side wall of the mounting plate (4243). The side wall of the mounting plate (4243) away from the second connecting rod (4242) is connected to one end of the protective cover (41). The mounting plate (4243) constitutes the driving end of the drive assembly (42). The bottom sidewall of each of the two fixing plates (423) is provided with a limiting groove (4231). When the mounting plate (4243) abuts against the limiting groove (4231), the protective cover (41) is in the working position.

6. The trimming device for a sheet metal production line as described in claim 5, characterized in that: The cylinder (422) and the fixed seat (421), the fixed seat (421) and the trimming mechanism (3), the two fixed plates (423) and the fixed seat (421), and the protective cover (41) and the mounting plate (4243) are all installed in a detachable manner.

7. A trimming device for a sheet metal production line as described in claim 2, characterized in that: The trimming device also includes a mounting rod (5), a drive switch (6), and a driver; The mounting rod (5) is installed between the two supports (1), the mounting rod (5) is located above the rotating roller (2) and the mounting rod (5) is parallel to the rotating roller (2), and the trimming mechanism (3) is installed on the mounting rod (5); The drive switch (6) is rotatably mounted on the mounting rod (5), and the drive switch (6) is close to a support (1) relative to the trimming mechanism (3). The driver is mounted on the support (1) and is electrically connected to the drive assembly (42). When the drive switch (6) is rotated, the drive switch (6) triggers the driver, and the driver controls the drive assembly to drive the protective cover.

8. The trimming device for a sheet metal production line as described in claim 7, characterized in that: The actuator is a roller lever type mechanical valve (7), which is located below the drive switch (6); When the drive switch (6) is rotated, the drive switch (6) presses the roller (71) of the roller lever type mechanical valve (7) and triggers the roller lever type mechanical valve (7).

9. A trimming device for a sheet metal production line as described in claim 8, characterized in that: The drive switch (6) includes a rotating part (61) and a pressure block (62); The rotating part (61) is rotatably sleeved on the mounting rod (5), one end of the pressure block (62) is connected to the rotating part (61), and the other end of the pressure block (62) is located above the roller (71) and can press the roller (71) when the rotating part (61) rotates; When the roller (71) is pressed, the drive assembly (42) drives the protective cover (41) to move from the stop position to the working position; When the pressure on the roller (71) is released, the roller (71) springs back, and the drive assembly (42) drives the protective cover (41) to move from the working position to the stopping position; The rotating part (61) includes a first rotating block (611) and a second rotating block (612); The first rotating block (611) and the second rotating block (612) are arranged opposite to each other, and the first rotating block (611) and the second rotating block (612) are detachably connected. The opposite side walls of the first rotating block (611) and the second rotating block (612) are arc-shaped, and the arc-shaped walls are in contact with the outer wall of the mounting rod (5). The driver is detachably mounted on the support (1).

10. A trimming device for a sheet metal production line as described in any one of claims 1-9, characterized in that: The trimming device is used in the flooring production line.

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