A plate processing production line

Abstract

The utility model discloses a kind of plate processing production line, UV edge spraying machine and second dryer are additionally provided between first dryer and surface coating machine, white UV (second dryer is dried to white UV after spraying) can increase the adhesion of powder by UV edge spraying machine at plate side edge groove, so that when carrying out last step powder spraying process, powder can firmly adhere in groove, to obtain high-quality finished plate material.In addition, the trimming machine used in the utility model not only can reduce labor intensity, improve slot trimming efficiency, but also does not need to reposition and align after plate position adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet metal processing, and in particular to a sheet metal processing production line. Background Technology

[0002] The board processing involves multiple steps, including, sequentially, cutting, drilling, UV edge sealing (on all four sides of the board), edge grooving and finishing, sanding, groove UV edge sealing, drying, coating, and powder coating. However, the above board processing has the following drawbacks: 1. The powder adhesion at the groove is poor, resulting in poor quality of the finished product after the final powder spraying process.

[0003] 2. Existing sheet metal trimming machines generally employ a "single-sided processing" structure, meaning that only one edge of the sheet metal can be grooved and trimmed in a single clamping operation. When grooving and trimming two or all four opposite edges of the sheet metal is required, the operator must manually move and reposition the sheet metal to align the edge to be processed with the cutting tool's working area. This process is not only labor-intensive and inefficient, but the moved sheet metal also requires repositioning and alignment, leading to increased cumulative errors. Furthermore, the fixing mechanisms used to secure the sheet metal in existing equipment (such as vacuum suction cups, pressure rollers, or pneumatic clamps) are typically rigidly installed in predetermined positions on the frame. When the sheet metal's position changes, the fixing mechanisms cannot adjust flexibly, easily resulting in insufficient fixing force or misalignment of the fixing points. This can cause the sheet metal to shift, warp, or even fall off, further affecting the grooving and trimming quality and posing safety hazards. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a board processing production line that can improve the powder adhesion at the side groove of the board, reduce labor intensity, and improve the efficiency of grooving and trimming.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A board processing production line includes a cutting machine, a punching machine, a first UV edge banding machine, an edge trimming machine, a first dryer, a coating machine, a powder spraying machine, a grinding machine, and a second UV edge banding machine. The characteristic feature is that it further includes a UV edge spraying machine and a second dryer. The cutting machine, punching machine, first UV edge banding machine, trimming machine, grinding machine, second UV edge banding machine, first dryer, UV edge spraying machine, second dryer, coating machine, and powder spraying machine are connected sequentially via a conveyor line. The trimming machine includes an upper frame, a lower frame, a turntable, a fixing mechanism, and a trimming mechanism; The lower support is provided with a boss; The boss is provided with an installation space; The turntable is rotatably installed in the installation space. The upper surface of the turntable is higher than the upper surface of the boss. The turntable is provided with a vacuum suction hole that communicates with an external vacuum machine and is provided with a sealing ring. The circumferential side of the turntable is provided with an operating part that extends out of the boss for operating the turntable. Both the fixing mechanism and the trimming mechanism are mounted on top of the turntable via an upper frame.

[0006] In this technical solution, a UV edge spraying machine and a second dryer are added between the first dryer and the coating machine. The UV edge spraying machine sprays white UV coating that can increase powder adhesion on the grooves on the side of the board, while the second dryer dries the sprayed white UV coating.

[0007] In addition, during the process of conveying the board to the trimming machine for grooving and trimming, the fixing mechanism secures the board, while the trimming mechanism trims the board. After processing on one side, the fixing and trimming mechanisms move away from the board, and the operator rotates the turntable via the operating unit to adjust the board's position. Alternatively, during the turntable's rotation, an external vacuum machine operates, firmly adsorbing the board onto the turntable through vacuum suction holes, so that the angle of the turntable's rotation is the angle of the board's rotation. This technical solution not only reduces labor intensity and improves trimming efficiency, but also eliminates the need for repositioning and alignment after the board's position is adjusted.

[0008] Furthermore, the UV edge-spraying machine includes a spray chamber, a spray gun, a conveying unit with a limiting part, a UV dust discharge system, and a shielding structure adapted to the thickness of the board material. The bottom of the spray chamber on opposite sides is provided with an inlet and an outlet, respectively; The conveying unit passes through the inlet and outlet of the spray chamber, conveying the sheet material into the spray chamber for edge spraying and then conveying the sheet material out of the spray chamber; Both the spray gun and the UV dust removal system are installed inside the spray chamber; The shielding structure is located in front of the spray gun in the spray direction, and the shielding structure includes a connecting mounting base, a lateral shielding part, and a longitudinally adjustable shielding module. The lateral shielding part is mounted on the conveying unit via a connecting mounting base and extends along the conveying direction of the conveying unit. The lateral shielding part has an opening located in front of the spray gun spraying direction. The longitudinal adjustment shielding module is located at the opening. The longitudinal adjustment shielding module cooperates with the transverse shielding part to form a spray window that is adapted to the thickness of the plate.

[0009] In this technical solution, edge spraying of the board material is performed inside the spraying chamber, which can prevent UV dust from spreading into the workshop. A shielding structure adapted to the thickness of the board material is set in front of the spray gun's spray direction to prevent UV coating from overflowing onto the surface of boards (of different thicknesses).

[0010] Furthermore, the operating part includes a circular grip and a connector; The circular grip is connected to the circumferential side of the turntable via a connector.

[0011] In this technical solution, the turntable is easily rotated by holding a round handle.

[0012] Furthermore, the trimming machine also includes a locking block; The upper surface edge of the turntable is provided with four first grooves that are evenly distributed in a circle, opposite each other, and penetrate through its side. The upper surface of the boss is provided with a second groove away from the trimming mechanism; The second groove, when the turntable is rotated, cooperates with different first grooves to form a locking groove; The locking block can be detachably inserted into the locking slot.

[0013] In this technical solution, only the first and second grooves need to cooperate to form a locking groove, which confirms that the turntable's rotation angle is 90 degrees, 180 degrees, or 270 degrees. Once the turntable has rotated to the desired angle, the locking block is inserted into the locking groove to lock the turntable, preventing it from rotating during edge trimming. When the turntable needs to rotate again, the locking block is removed from the locking groove. This technical solution not only confirms that the turntable's rotation angle is 90 degrees, 180 degrees, or 270 degrees, ensuring that after the turntable rotates, the trimming mechanism processes opposite edges or two other edges without requiring repositioning, but also locks the turntable.

[0014] Furthermore, the fixing mechanism includes a track, a sliding mounting component, a cylinder, and a fixing component; The track is cross-shaped and fixed on the upper frame, with its intersection point located directly above the center of the turntable. The cylinder is slidably connected to the rail via a sliding mounting component; The fixing component is installed at the output end of the cylinder.

[0015] In this technical solution, even if the placement of the plate changes, the position can be flexibly adjusted by the cylinder along the track through the sliding mounting parts, so that the plate can remain reliably fixed after the position changes.

[0016] Furthermore, the upper surface of the turntable is provided with crisscrossing alignment lines.

[0017] In this technical solution, after the sheet material is conveyed to the turntable, it is first aligned by the alignment line. After the alignment is confirmed, the sheet material is fixed by the fixing mechanism to avoid misalignment of the trimming mechanism.

[0018] Furthermore, the longitudinal adjustment blocking module includes threaded posts, springs, adapter stops, and adjustment components located on the left and right sides of the opening; The spring is sleeved on the corresponding threaded post; The adapter stop is fitted onto the threaded posts on the left and right sides of the opening and is supported by springs; The adjusting component is threadedly connected to the corresponding threaded post and is located above the adapter stop. By turning the adjusting component, the spring is compressed, thereby adjusting the height of the adapter stop.

[0019] Furthermore, the UV dust removal system includes a water tank, a water reservoir, a water pump, and pipes; The water tank is installed on the inner wall of the spray chamber on the side opposite to the spray gun, and a gap is provided between the water tank and the inner wall to form a water curtain. The water curtain is used to absorb the generated UV dust; The water tank is located at the bottom of the spray chamber and is used to store and receive the water flowing down after the water curtain is formed; The water pump is installed inside the water tank and connected to the water trough through a pipe, transporting water from the water tank to the water trough to form a water circulation system.

[0020] In this technical solution, the formed water curtain absorbs UV dust, preventing UV dust from accumulating in the spray chamber and depositing on the plate surface.

[0021] Furthermore, the UV dust removal system also includes a blowing module; The spray chamber is equipped with a closed door on the side opposite to the side containing the water tank; The enclosed door is equipped with an array of exhaust vents; The blowing module is installed inside the closed door and faces the air vent array, blowing air towards the formed water curtain.

[0022] In this technical solution, the generated UV dust is blown toward the water curtain by the blowing module, which can greatly improve the efficiency of the water curtain in absorbing UV dust.

[0023] Furthermore, a storage tank for storing UV coating is detachably installed on the spray gun. The outlet of the storage tank is directly connected to the inlet of the spray gun, eliminating the need for a connecting pipeline between the two and preventing the UV coating from clogging the pipeline.

[0024] Compared with existing technologies, the principles and advantages of this technical solution are as follows: In this technical solution, a UV edge spraying machine and a second dryer are added between the first dryer and the coating machine. The UV edge spraying machine sprays white UV coating that can increase the adhesion of powder on the side groove of the board (the second dryer dries the sprayed white UV coating), so that when the final powder coating process is carried out, the powder can be firmly attached to the groove, thereby obtaining a high-quality finished board.

[0025] In addition, during the process of conveying the board to the trimming machine for grooving and trimming, the fixing mechanism secures the board, while the trimming mechanism performs the grooving and trimming. After processing on one side, the fixing and trimming mechanisms move away from the board, and the operator rotates the turntable via the control unit to adjust the board's position. Alternatively, during the turntable's rotation, an external vacuum machine operates, firmly adsorbing the board onto the turntable through vacuum suction holes, so that the angle of the turntable's rotation corresponds to the angle of the board's rotation. This technical solution not only reduces labor intensity and improves trimming efficiency but also eliminates the need for repositioning and alignment after the board's position is adjusted. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the services required in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of a sheet metal processing production line according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of an edge trimming machine in a sheet metal processing production line according to an embodiment of the present invention; Figure 3 This is an exploded view of an edge trimming machine in a sheet metal processing production line according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a sheet metal processing production line according to an embodiment of the present invention, in which the fixing mechanism and the trimming mechanism are installed on the upper frame (Q is the grooving and trimming tool). Figure 5 This is a schematic diagram of a locking groove formed by the cooperation of a first groove and a second groove in a sheet metal processing production line according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of a sheet metal processing production line when a locking block is inserted into a locking groove, according to an embodiment of the present invention. Figure 7 This is one of the structural schematic diagrams of a UV edge-spraying machine in a sheet metal processing production line according to an embodiment of the present utility model (the closed door is in a closed state, and point A is glass). Figure 8 This is a second structural schematic diagram of a UV edge-spraying machine in a sheet metal processing production line according to an embodiment of the present utility model (the closed door is in the open state). Figure 9 This is the third structural schematic diagram of a UV edge spraying machine in a sheet metal processing production line according to an embodiment of the present invention (one side of the spraying chamber is omitted). Figure 10This is a three-dimensional schematic diagram of the shielding structure of a UV edge-spraying machine in a sheet metal processing production line according to an embodiment of the present invention; Figure 11 A three-dimensional schematic diagram of the fitting component in the shielding structure; Figure 12 for Figure 8 A magnified view of a section at point B in the middle; Figure 13 This is one of the structural diagrams of the processed sheet material; Figure 14 This is the second structural diagram of the processed board.

[0028] Figure label: 1-Cutting machine; 2-Drilling machine; 3-First UV edge banding machine; 4-Edge trimming machine; 5-First dryer; 6-Coating machine; 7-Powder spraying machine; 8-UV edge spraying machine; 9-Second dryer; 10-Upper frame; 11-Lower frame; 12-Turntable; 13-Fixing mechanism; 14-Edge trimming mechanism; 15-Boss; 16-Vacuum suction hole; 17-Operating unit; 18-Locking block; 19-First groove; 20-Second... 21-Second groove; 22-Railway; 23-Cylinder; 24-Fixed component; 25-Spray chamber; 26-Spray gun; 27-Connecting mounting base; 28-Horizontal shielding part; 29-Threaded column; 30-Spring; 31-Adaptive stop; 32-Adjusting component; 33-Water tank; 34-Water reservoir; 35-Blowing module; 36-Sealed door; 37-Exhaust vent array; 38-Grinding machine; 39-Second UV edge banding machine. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments: like Figure 1 As shown in the figure, the board processing production line described in this embodiment includes a cutting machine 1, a punching machine 2, a first UV edge banding machine 3, an edge trimming machine 4, a first dryer 5, a coating machine 6, a powder spraying machine 7, a sanding machine 38, a second UV edge banding machine 39, a UV edge spraying machine 8, and a second dryer 9.

[0030] Among them, the cutting machine 1, the punching machine 2, the first UV edge banding machine 3, the trimming machine 4, the grinding machine 38, the second UV edge banding machine 39, the first dryer 5, the UV edge spraying machine 8, the second dryer 9, the coating machine 6, and the powder spraying machine 7 are connected in sequence by a conveyor line.

[0031] Specifically, in this embodiment, the cutting machine 1, the drilling machine 2, the first UV edge banding machine 3, the first dryer 5, the coating machine 6, the powder spraying machine 7, the second dryer 9, the grinding machine 38, and the second UV edge banding machine 39 are all existing equipment; the cutting machine 1 is a HPP180 model; the drilling machine 2 is a SKH612HS model (six-sided drilling and milling machining center); the first UV edge banding machine 3 and the second UV edge banding machine 39 are both AL model... The high-speed automatic roller-press UV roll coating and edge sealing machine is ECO-FB-UV-40-T3-P3-D6-1; both the first dryer 5 and the second dryer 9 are UV five-lamp dryers; the coating machine 6 (double-sided high-precision roller coating equipment) is model ALECO-FM-1300-1; the powder spraying machine 7 is a parallel explosion-proof double powder room automatic electrostatic powder coating line with model ALECO-WSDPUV-4.5M-1200-2-1.

[0032] Specifically, in this embodiment, as Figures 2 to 6 As shown, the trimming machine 4 includes an upper frame 10, a lower frame 11, a turntable 12, a fixing mechanism 13, a trimming mechanism 14, and a locking block 18.

[0033] The lower support 11 is provided with a boss 15; the boss 15 is provided with an installation space; the turntable 12 is rotatably installed in the installation space, the upper surface of the turntable 12 is higher than the upper surface of the boss 15, the turntable 12 is provided with a vacuum suction hole 16 that communicates with an external vacuum machine and is provided with a sealing ring, and the circumferential side of the turntable 12 is provided with an operating part 17 that extends out of the boss 15 for operating the turntable 12; the fixing mechanism 13 and the trimming mechanism 14 are both mounted on the upper support 10 above the turntable 12.

[0034] The operating unit 17 includes a circular handle and a connector; the circular handle is connected to the circumferential side of the turntable 12 via the connector. By holding the circular handle, it is convenient to rotate the turntable 12.

[0035] The upper surface edge of the turntable 12 is provided with four circumferentially distributed, opposite, and penetrating first grooves 19; the upper surface of the boss 15 is provided with a second groove 20 away from the trimming mechanism 14; the second groove 20, when the turntable 12 is rotated, cooperates with different first grooves 19 to form a locking groove; the locking block 18 is detachably inserted into the locking groove. In this embodiment, as long as the first grooves 19 and the second grooves 20 cooperate to form the locking groove, it can be confirmed that the rotation angle of the turntable 12 is 180 degrees. After the turntable 12 rotates to the required angle, the locking block 18 is inserted into the locking groove to lock the turntable 12, preventing the turntable 12 from rotating during the trimming process of the board. When the turntable 12 needs to rotate, the locking block 18 is removed from the locking groove. This not only confirms that the rotation angle of the turntable 12 is 180 degrees, ensuring that after the turntable 12 rotates, the trimming mechanism 14 processes opposite edges or two other edges without needing to reposition, but also locks the turntable 12.

[0036] The fixing mechanism 13 includes a track 21, a sliding mounting component, a cylinder 22, and a fixing component 23. The track 21 is cross-shaped and fixed to the upper frame 10, with its intersection point located directly above the center of the turntable 12. The cylinder 22 is slidably connected to the track 21 via the sliding mounting component. The fixing component 23 is installed at the output end of the cylinder 22. In this embodiment, even if the placement position of the board changes, the cylinder 22 can flexibly adjust its position along the track 21 through the sliding mounting component, so that the board can remain reliably fixed after the position changes.

[0037] The installation space contains a bearing 24; the outer ring of the bearing 24 is fixedly connected to the inner wall of the installation space; the turntable 12 is fixedly connected to the inner ring of the bearing 24. The upper surface of the turntable 12 is covered with an anti-scratch pad to prevent damage to the turntable 12 during the feeding or removal of materials. The lower support 11 is equipped with conveyor lines located at both ends of the boss 15, facilitating the feeding or removal of materials from the turntable 12.

[0038] The trimming mechanism 14 is an existing mechanism, including a lateral adjustment module, a longitudinal adjustment module, a front-to-back adjustment module, a drive motor, a mounting base, and a grooving trimming cutter. The drive motor is mounted on the longitudinal adjustment module via the mounting base (the mounting base is connected to a nut), and the grooving trimming cutter is connected to the output end of the drive motor and is driven to rotate by the drive motor. The front-to-back adjustment module is connected between the lateral adjustment module and the longitudinal adjustment module. The lateral adjustment module, the longitudinal adjustment module, and the front-to-back adjustment module all adopt a screw drive mechanism, and the three work together to drive the drive motor and the grooving trimming cutter to move in the XYZ directions.

[0039] The upper surface of the turntable 12 is provided with crisscrossing alignment lines. After the sheet material is conveyed onto the turntable 12, it is first aligned by the alignment lines. After the alignment is confirmed, the sheet material is fixed by the fixing mechanism 13 to prevent the trimming mechanism 14 from trimming misalignment.

[0040] Specifically, in this embodiment, as Figures 7 to 12 As shown, the UV edge-spraying machine 8 includes a spray chamber 25, a spray gun 26, a conveying unit with a limiting part, a UV dust discharge system, and a shielding structure adapted to the thickness of the board.

[0041] The spray chamber 25 has an inlet and an outlet at its bottom on opposite sides. A conveying unit passes through the inlet and outlet of the spray chamber 25, conveying the sheet material into the spray chamber 25 for edge spraying and then conveying the sheet material out of the spray chamber 25. The spray gun 26 and the UV dust discharge system are both installed inside the spray chamber 25. A shielding structure is located in front of the spray direction of the spray gun 26. The shielding structure includes a connecting mounting base 27, a transverse shielding part 28, and a longitudinal adjustment shielding module. The transverse shielding part 28 is mounted on the conveying unit via the connecting mounting base 27 and extends along the conveying direction of the conveying unit. The transverse shielding part 28 has an opening located in front of the spray direction of the spray gun 26. The longitudinal adjustment shielding module is located at the opening. The longitudinal adjustment shielding module cooperates with the transverse shielding part 28 to form a spray window adapted to the thickness of the sheet material.

[0042] The longitudinal adjustment blocking module includes threaded posts 29, springs 30, adapter stops 31, and adjusting members 32 located on the left and right sides of the opening. Springs 30 are sleeved on the corresponding threaded posts 29. Adapter stops 31 are sleeved on the threaded posts 29 on the left and right sides of the opening and supported by springs 30. Adjusting members 32 are threadedly connected to the corresponding threaded posts 29 and are located above the adapter stops 31. By turning the adjusting members 32, the springs 30 are compressed, thereby adjusting the height of the adapter stops 31.

[0043] The UV dust removal system includes a water tank 33, a water reservoir 34, a water pump, pipes, and a blower module 35 (blower). The water tank 33 is installed on the inner wall of the spray chamber 25 on the side opposite to the spray gun 26, and a gap is provided between the water tank 33 and the inner wall to form a water curtain. The water curtain is used to absorb the generated UV dust. The water reservoir 34 is located at the bottom of the spray chamber 25 and is used to store and receive the water flowing down after the water curtain is formed. The water pump is installed in the water reservoir 34 and is connected to the water tank 33 through pipes to transport the water in the water tank 34 to the water tank 33, forming a water circulation system. In this embodiment, the UV dust is absorbed by the formed water curtain, preventing the UV dust from accumulating in the spray chamber 25 and depositing on the plate surface.

[0044] The spray chamber 25 has a closed door 36 on the side opposite to the water tank 33; the closed door 36 has an array of exhaust vents 37; the blowing module 35 is installed inside the closed door 36 and faces the array of exhaust vents 37, blowing air towards the formed water curtain. In this embodiment, the blowing module 35 blows the generated UV dust towards the water curtain, which can greatly improve the efficiency of the water curtain in absorbing UV dust.

[0045] A storage tank for storing UV coating is detachably installed on the spray gun 26. The outlet of the storage tank is directly connected to the inlet of the spray gun 26, eliminating the need for a connecting pipeline between the two and preventing the UV coating from clogging the pipeline.

[0046] The working principle of this embodiment is as follows: 1) The sheet metal is cut using a panel cutting machine 1; 2) Drill holes in the cut sheet material using drilling machine 2; 3) The four edges of the perforated board are UV-sealed using the first UV edge banding machine 3; 4) After the four edges of the board have been sealed by the edge trimming machine 4, the two opposite edges are grooved and trimmed. 5) Grind the grooved and trimmed board using a grinding machine 38; 6) The sanded board is then subjected to UV edge banding again using the second UV edge banding machine 39; 7) The boards that have undergone UV edge sealing treatment are dried using the first dryer 5; 8) Use a UV edge spraying machine 8 to spray the edge of the board that has undergone the first drying process. The main process is to spray a white UV material that can increase the adhesion of the powder onto the side grooves. 9) The board material with white UV material sprayed on the side groove is dried a second time using the second dryer 9; during drying, the board material is in an environment with a temperature of 70 degrees and the drying time is 30 seconds.

[0047] 10) Apply UV material to the surface of the board that has undergone a second drying process using a coating (roller) machine 6; 11) With UV material coated on all surfaces (top and bottom surfaces and sides) of the board, the board is powder-coated using a powder spraying machine 7 to obtain the final product as shown. Figure 13 , Figure 14 The finished sheet material shown.

[0048] Specifically, the process of grooving and trimming two opposite edges of the board after all four edges have been sealed by the edge trimming machine 4 includes: The sheet material is conveyed to the turntable 12 via the conveyor line at the front end of the boss 15. It is then aligned using the alignment line. After alignment confirmation, the sheet material is fixed by the fixing mechanism 13 to prevent misalignment of the trimming mechanism 14. After the trimming mechanism 14 completes single-sided trimming of the sheet material, the fixing mechanism 13 and the trimming mechanism 14 are removed from the sheet material. The operator rotates the turntable 12 by holding the round handle, rotating it 180 degrees to adjust the sheet material's position. Additionally, during the rotation of the turntable 12, an external vacuum machine operates, firmly adsorbing the sheet material onto the turntable 12 through the vacuum suction holes 16. This ensures that the angle of rotation of the turntable 12 corresponds to the angle of rotation of the sheet material. This embodiment not only reduces labor intensity and improves trimming efficiency but also eliminates the need for repositioning and alignment after the sheet material's position is adjusted.

[0049] During the trimming process, only the first groove 19 and the second groove 20 need to cooperate to form a locking groove to confirm that the rotation angle of the turntable 12 is 180 degrees. After the turntable 12 rotates to the required angle, the locking block 18 is inserted into the locking groove to lock the turntable 12 and prevent it from rotating during the trimming process. When the turntable 12 needs to rotate, the locking block 18 is removed from the locking groove. This embodiment not only confirms that the rotation angle of the turntable 12 is 180 degrees, ensuring that the trimming mechanism 14 processes the opposite edge after the turntable 12 rotates without needing to reposition, but also locks the turntable 12.

[0050] When the fixing mechanism 13 fixes the plate (before the plate angle is adjusted), the cylinder 22 adjusts its position along the horizontal rail 21. The plate is fixed by the cooperation of two cylinders 22 that are slidably connected to the horizontal rail 21 (the two cylinders 22 drive their respective corresponding fixing parts 2314 to descend).

[0051] Specifically, the process of applying edge-spraying treatment to the board that has undergone the first drying process using the UV edge-spraying machine 8 includes: Before edge spraying, UV coating is added to the storage tank, and a spraying test is conducted. The test process includes: Based on the thickness of the board to be edge-sprayed, the height of the adapter stop 31 is adjusted by turning the adjusting component 32 and compressing the spring 30. The height of the spray gun 26 (with a fixed spray angle) is then adjusted by turning the adjusting handle. This ensures that when the spray gun 26 (tilted towards one end of the board) performs UV spraying, the adapter stop 31 is positioned directly in front of the board's upper surface, allowing the UV coating to be applied only to the side of the board. This experiment was conducted before the entire board processing production line was officially started.

[0052] During edge spraying, a water pump operates, delivering water from water tank 34 to water trough 33, thus forming a water curtain within spray chamber 25. The blower module 35 blows air directly onto this water curtain. The sheet material, conveyed by the conveyor line, passes through the inlet of spray chamber 25 and enters the chamber. As the sheet material approaches the opening of the transverse shielding section 28, the spray gun 26 begins spraying UV coating towards the opening. When the sheet material passes the opening of the transverse shielding section 28, the UV coating is precisely applied to the side edge of the sheet material. The formed water curtain absorbs the UV dust generated during the spraying (edge) coating process, preventing UV dust from accumulating within spray chamber 25 and depositing on the sheet surface.

[0053] In this embodiment, edge spraying of the board material is performed inside the spray chamber 25 to prevent UV dust from spreading into the workshop. A shielding structure adapted to the thickness of the board material is provided in front of the spray gun 26 in the spray direction to prevent UV coating from overflowing onto the surface of boards (of different thicknesses).

[0054] The formed water curtain absorbs UV dust, preventing it from accumulating in the spray chamber 25 and depositing on the plate surface. The generated UV dust is then blown towards the water curtain by the blowing module 35, greatly improving the efficiency of the water curtain in absorbing UV dust.

[0055] In this embodiment, a UV edge spraying machine 8 and a second dryer 9 are added between the first dryer 5 and the coating machine 6. The UV edge spraying machine 8 sprays white UV that can increase the adhesion of powder on the side groove of the board (the second dryer 9 dries the sprayed white UV), so that when the final powder coating process is carried out, the powder can be firmly attached to the groove, thereby obtaining a high-quality finished board.

[0056] Furthermore, during the process of conveying the board to the trimming machine 4 for grooving and trimming, the fixing mechanism 13 fixes the board, and the trimming mechanism 14 trims the board. After processing on one side, the fixing mechanism 13 and the trimming mechanism 14 are removed from the board, and the operator rotates the turntable 12 through the operating unit 17 to complete the position adjustment of the board. Additionally, during the rotation of the turntable 12, an external vacuum machine operates, firmly adsorbing the board onto the turntable 12 through the vacuum suction holes 16, so that the angle of rotation of the turntable 12 is the angle of rotation of the board. This embodiment not only reduces labor intensity and improves trimming efficiency, but also eliminates the need for repositioning and alignment after the board position is adjusted.

[0057] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A sheet metal processing production line, comprising a cutting machine, a punching machine, a first UV edge banding machine, an edge trimming machine, a first dryer, a coating machine, a powder spraying machine, a sanding machine, and a second UV edge banding machine, characterized in that, It also includes a UV edge-spraying machine and a second dryer; The cutting machine, punching machine, first UV edge banding machine, trimming machine, grinding machine, second UV edge banding machine, first dryer, UV edge spraying machine, second dryer, coating machine, and powder spraying machine are connected sequentially via a conveyor line. The trimming machine includes an upper frame, a lower frame, a turntable, a fixing mechanism, and a trimming mechanism; The lower support is provided with a boss; The boss is provided with an installation space; The turntable is rotatably installed in the installation space. The upper surface of the turntable is higher than the upper surface of the boss. The turntable is provided with a vacuum suction hole that communicates with an external vacuum machine and is provided with a sealing ring. The circumferential side of the turntable is provided with an operating part that extends out of the boss for operating the turntable. Both the fixing mechanism and the trimming mechanism are mounted on top of the turntable via an upper frame.

2. The sheet metal processing production line according to claim 1, characterized in that, The UV edge-spraying machine includes a spray chamber, a spray gun, a conveying unit with a limiting part, a UV dust discharge system, and a shielding structure adapted to the thickness of the board. The bottom of the spray chamber on opposite sides is provided with an inlet and an outlet, respectively; The conveying unit passes through the inlet and outlet of the spray chamber, conveying the sheet material into the spray chamber for edge spraying and then conveying the sheet material out of the spray chamber; Both the spray gun and the UV dust removal system are installed inside the spray chamber; The shielding structure is located in front of the spray gun in the spray direction, and the shielding structure includes a connecting mounting base, a lateral shielding part, and a longitudinally adjustable shielding module. The lateral shielding part is mounted on the conveying unit via a connecting mounting base and extends along the conveying direction of the conveying unit. The lateral shielding part has an opening located in front of the spray gun spraying direction. The longitudinal adjustment shielding module is located at the opening. The longitudinal adjustment shielding module cooperates with the transverse shielding part to form a spray window that is adapted to the thickness of the plate.

3. The sheet metal processing production line according to claim 1, characterized in that, The operating part includes a circular grip and a connector; The circular grip is connected to the circumferential side of the turntable via a connector.

4. The sheet metal processing production line according to claim 1, characterized in that, The trimming machine also includes a locking block; The upper surface edge of the turntable is provided with four first grooves that are evenly distributed in a circle, opposite each other, and penetrate through its side. The upper surface of the boss is provided with a second groove away from the trimming mechanism; The second groove, when the turntable is rotated, cooperates with different first grooves to form a locking groove; The locking block can be detachably inserted into the locking slot.

5. A sheet metal processing production line according to claim 1, characterized in that, The fixing mechanism includes a track, a sliding mounting component, a cylinder, and a fixing component; The track is cross-shaped and fixed on the upper frame, with its intersection point located directly above the center of the turntable. The cylinder is slidably connected to the rail via a sliding mounting component; The fixing component is installed at the output end of the cylinder.

6. A sheet metal processing production line according to claim 1, characterized in that, The upper surface of the turntable is provided with crisscrossing alignment lines.

7. A sheet metal processing production line according to claim 2, characterized in that, The longitudinal adjustment blocking module includes threaded posts, springs, adapter stops, and adjustment components located on the left and right sides of the opening; The spring is sleeved on the corresponding threaded post; The adapter stop is fitted onto the threaded posts on the left and right sides of the opening and is supported by springs; The adjusting component is threadedly connected to the corresponding threaded post and is located above the adapter stop. By turning the adjusting component, the spring is compressed, thereby adjusting the height of the adapter stop.

8. A sheet metal processing production line according to claim 2, characterized in that, The UV dust removal system includes a water tank, a water reservoir, a water pump, and pipes; The water tank is installed on the inner wall of the spray chamber on the side opposite to the spray gun, and a gap is provided between the water tank and the inner wall to form a water curtain. The water curtain is used to absorb the generated UV dust; The water tank is located at the bottom of the spray chamber and is used to store and receive the water flowing down after the water curtain is formed; The water pump is installed inside the water tank and connected to the water trough through a pipe, transporting water from the water tank to the water trough to form a water circulation system.

9. A sheet metal processing production line according to claim 8, characterized in that, The UV dust removal system also includes a blowing module; The spray chamber is equipped with a closed door on the side opposite to the side containing the water tank; The enclosed door is equipped with an array of exhaust vents; The blowing module is installed inside the closed door and faces the air vent array, blowing air towards the formed water curtain.

10. A sheet metal processing production line according to claim 2, characterized in that, The spray gun is detachably equipped with a storage tank for storing UV coatings, and the outlet of the storage tank is connected to the inlet of the spray gun.

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