Reciprocating type full-automatic sanding production line for LNG ship insulation box foaming plate
By designing a reciprocating fully automated sanding production line for foamed panels used in LNG ship insulation boxes, and utilizing linear drive modules and clamping devices to hold support fixtures, the problems of low efficiency and inaccurate positioning in double-sided sanding of foamed panels were solved, achieving a high-precision sanding effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YANSONG MASCH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the double-sided sanding process of the foamed board for LNG ship insulation boxes is inefficient and has poor positioning accuracy. The sanding of easily deformable workpieces is uneven and there are serious "biting at the head and tail" phenomena.
Design a reciprocating fully automated sanding production line for foamed panels used in LNG ship insulation boxes, including a front sanding device, a flipping device, and a back sanding device. A linear drive module drives the support fixture to move back and forth, and a clamp and elastic support unit ensure stable positioning and balanced force on the foamed panel during the sanding process.
It achieves precise sanding with the surface error value of foamed board controlled within 10 microns, reduces manual turning, improves production efficiency, and avoids the "biting at the beginning and end" defect.
Smart Images
Figure CN224223532U_ABST
Abstract
Description
[Technical Field]
[0001] This utility model relates to the field of surface sanding technology for foamed panels of LNG ship insulation boxes, specifically to a reciprocating fully automatic sanding production line for foamed panels of LNG ship insulation boxes. [Background Technology]
[0002] Currently, sanding and polishing of foam boards on the market are all done manually or semi-automatically. The foam board is held in place by hand or with auxiliary clamps, and the surface to be sanded / polished is fed onto the surface of a grinding wheel / cloth wheel to achieve the sanding / polishing process. This method can lead to uneven support surfaces, uneven stress on the foam board during processing causing localized deformation and resulting in poor processing accuracy. Furthermore, each foam board needs to be positioned and supported before processing, leading to low processing efficiency.
[0003] Currently, automated sanding production lines have emerged on the market. Most of these lines employ a continuous pass-through design, where workpieces pass through the sanding mechanism in one direction for single-sided processing. For workpieces requiring double-sided sanding, manual flipping is usually necessary, resulting in low production efficiency and poor positioning accuracy, especially for easily deformable workpieces (such as thin sheets). Furthermore, these pass-through lines typically use conveyor belts to transport the foam boards, leading to unstable support and inconsistent placement of the foam boards. During sanding, uneven bending at both ends of the foam boards results in significant surface errors, causing over-grinding at the feed / output ends (commonly known as "end-biting"), thus affecting processing quality.
[0004] To address the aforementioned technical problems, this utility model proposes a reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes, thereby solving the above-mentioned technical problems. [Utility Model Content]
[0005] The technical problem to be solved by this utility model is to provide a reciprocating fully automatic sanding production line for foamed panels of LNG ship insulation boxes, which solves the problems of low efficiency in the connection of double-sided sanding process, poor workpiece positioning accuracy, uneven sanding of easily deformable workpieces, and "biting at the head and tail".
[0006] To solve the above-mentioned technical problems, this utility model proposes a reciprocating fully automatic sanding production line for foamed panels of LNG ship insulation boxes, comprising:
[0007] The front sanding device is used to receive the foamed board from the previous process and sand its front side;
[0008] The flipping device, located downstream of the front sanding device, is used to receive the foam board after it has been sanded by the front sanding device and flip it 180°.
[0009] The reverse sanding device, located downstream of the flipping device, is used to receive the foam board after it has been flipped by the flipping device and to sand its reverse side.
[0010] Both the front sanding device and the back sanding device include:
[0011] frame;
[0012] The sanding mechanism is mounted on the frame;
[0013] A support fixture is slidably mounted on the frame, and the support fixture can fix the foam board thereon, and the support fixture can move the foam board thereon;
[0014] The linear drive module, connected to the support fixture, is used to drive the support fixture to carry the foam board and move it back and forth along the sanding path on the frame. During the movement, the foam board is sanded by the sanding mechanism, and the processed foam board is handed over to the workstation at the transfer position.
[0015] As described above, the reciprocating fully automated sanding production line for foamed panels used in LNG ship insulation boxes includes the following support fixtures in the front sanding device:
[0016] The base frame slides into the corresponding machine frame;
[0017] Several spaced-apart support plates are set on the base frame along the conveying path of the foamed board;
[0018] The lifting frame is mounted on the base frame in a way that allows it to be raised and lowered via guide columns;
[0019] Several spaced rollers are rotatably mounted on a lifting frame for conveying foamed boards on a support fixture, wherein the support plates are located between adjacent rollers;
[0020] The support fixture is also equipped with a clamping support mechanism for holding the sides of the foam board and dynamically supporting the bottom of the foam board to prevent the foam board from deforming during the sanding process, thereby ensuring that the front of the foam board is sanded flat.
[0021] As described above, the reciprocating fully automated sanding production line for foamed boards used in LNG ship insulation boxes includes a clamping and support mechanism comprising:
[0022] The clamp includes clamping plates symmetrically arranged on both sides of the support fixture and a drive assembly on the base frame for synchronously driving the two clamping plates to center and clamp the foam board.
[0023] The elastic support unit consists of multiple independently mounted support components on the base frame. The support components include support blocks for abutting against the bottom of the foam board and lifting cylinders mounted on the base frame. The bottom of the support block is connected to the piston rod of the lifting cylinder. The support plate is provided with clearance holes for the support block to pass through. Each lifting cylinder is adaptively adjusted by a pressure regulating valve to drive the corresponding support block to support the bottom of the foam board, thereby balancing the forces at each support point at the bottom of the foam board.
[0024] As described above, a reciprocating fully automatic sanding production line for foamed boards used in LNG ship insulation boxes has an adjustment panel on the frame of the front sanding device for manually adjusting the air pressure of each lifting cylinder to accommodate foamed boards of different specifications.
[0025] As described above, a reciprocating fully automatic sanding production line for foamed boards used in LNG ship insulation boxes has a fixed plate on the base frame, two clamping plates slidably mounted on the fixed plate, and a driving assembly including a clamping cylinder mounted on the fixed plate and racks fixedly connected to the corresponding clamping plates, and a gear rotatably mounted on the fixed plate, the gears meshing with the corresponding racks, and the piston rod of the clamping cylinder connected to one of the clamping plates.
[0026] As described above, a reciprocating fully automatic sanding production line for foamed boards for LNG ship insulation boxes includes at least three clamps, with the front clamps starting synchronously with the rear clamps, and the front and rear clamps clamping the boards earlier than the middle clamps.
[0027] As described above, a reciprocating fully automatic sanding production line for foamed panels for LNG ship insulation boxes includes a base frame with several lifting plates that slide with it, and a transverse cylinder that drives the lifting plates to move. The lifting plates are formed with a pushing inclined surface, and the lifting frame is provided with a force-bearing block corresponding to the lifting plates. The force-bearing block is formed with a force-bearing inclined surface that cooperates with the pushing inclined surface.
[0028] As described above, a reciprocating fully automatic sanding production line for foamed boards used in LNG ship insulation boxes has a pair of parallel V-shaped dustproof guide rails on the frame, and the support fixture slides in cooperation with the V-shaped dustproof guide rails.
[0029] As described above, a reciprocating fully automatic sanding production line for foamed boards used in LNG ship insulation boxes includes a support fixture in the reverse sanding device, which includes a vacuum adsorption conveyor belt slidably mounted on the corresponding frame, and a number of guide rollers located on both sides of the front end of the reverse sanding device frame for guiding the foamed boards.
[0030] As described above, a reciprocating fully automatic sanding production line for foamed boards used in LNG ship insulation boxes has transition rotating rollers at both ends of the vacuum adsorption conveyor belt.
[0031] Compared with existing technologies, the reciprocating fully automatic sanding production line for foamed panels of LNG ship insulation boxes of this utility model has the following advantages:
[0032] 1. The present application sets the support fixture in the front sanding device and the back sanding process to be reciprocating, and drives the support fixture to move on the corresponding frame by a linear drive module. Compared with the previous through-type sanding method, the foam board can be stable during the sanding process, and the surface error value of the foam board can be controlled within ten microns, thus achieving precise sanding.
[0033] 2. In this application, the foam board is clamped by a clamp, and then each support component is activated. The lifting cylinder drives the support block to support the foam board. Since the lifting cylinder adaptively adjusts the air pressure through the pressure regulating valve, the supporting force of each support block is the same, thereby preventing the foam board from being subjected to unbalanced force during the sanding process, which would result in uneven sanding.
[0034] 3. The automatic sanding production line of this application can automatically flip the surface to achieve double-sided sanding, reduce manual intervention, and improve production efficiency. [Attached Image Description]
[0035] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0036] Figure 1 This is a schematic diagram of the structure of this utility model.
[0037] Figure 2 This is a schematic diagram of the front sanding device in this utility model.
[0038] Figure 3 This is a schematic diagram of the reverse sanding device in this utility model.
[0039] Figure 4 This is a schematic diagram of the flipping device in this utility model.
[0040] Figure 5 This is a schematic diagram of the linear drive module in this utility model.
[0041] Figure 6 This is a schematic diagram of the support fixture in this utility model.
[0042] Figure 7 This is a schematic diagram of the clamping and support mechanism in this utility model.
[0043] Figure 8 This is a schematic diagram of the elastic support unit in this utility model.
[0044] Figure 9This is a schematic diagram of the clamp in this utility model.
[0045] Figure 10 This is another structural schematic diagram of the clamp in this utility model.
[0046] Figure 11 This is a structural schematic diagram of the support component in this utility model.
[0047] Figure 12 This is a schematic diagram of the structure of the roller in this utility model.
[0048] Figure 13 yes Figure 12 The enlarged structural diagram at point A is shown in the image.
[0049] Figure 14 This is a structural schematic diagram of the lifting frame in this utility model.
[0050] Figure 15 This is a schematic diagram of the transverse cylinder in this utility model.
[0051] In the diagram: 1. Front sanding device; 10. Frame; 11. Sanding mechanism; 12. Linear drive module; 13. Lifting plate; 14. Lateral movement cylinder; 15. Force block; 16. V-shaped dustproof guide rail; 17. Vacuum adsorption conveyor belt; 18. Guide roller; 19. Transition rotating roller;
[0052] 2. Tilting device; 3. Reverse sanding device;
[0053] 4. Support fixture; 40. Base frame; 41. Support plate; 42. Lifting frame; 43. Roller;
[0054] 5. Clamping support mechanism; 50. Clamper; 51. Clamping plate; 52. Drive assembly; 53. Fixing plate; 54. Clamping cylinder; 55. Rack; 56. Gear;
[0055] 500, Elastic support unit; 501, Support component; 502, Support block; 503, Lifting cylinder; 504, Adjustment panel.
Detailed Implementation Methods
[0056] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0057] like Figure 1-15As shown, this utility model includes a reciprocating fully automatic sanding production line for foamed boards used in LNG ship insulation boxes, including a front sanding device 1, a flipping device 2, and a back sanding device 3. The front sanding device 1 is used to receive the foamed board from the previous process and sand its front side. The flipping device 2 is located downstream of the front sanding device 1 and is used to receive the foamed board sanded by the front sanding device 1 and flip it 180°. The back sanding device 3 is located downstream of the flipping device 2 and is used to receive the foamed board flipped by the flipping device 2 and sand its back side. In this embodiment, both the front sanding device 1 and the back sanding device 3 include a frame 10, a sanding mechanism 11, a support fixture 4, and a linear drive module 12. The sanding mechanism 11 is mounted on the frame 10, and the support fixture 4 is slidably mounted on the frame 10. The support fixture 4 can fix the foam board on it and can move the foam board on it. The linear drive module 12 is connected to the support fixture 4 and is used to drive the support fixture 4 to carry the foam board and move back and forth along the sanding path on the frame 10, so that the foam board completes the sanding process through the sanding mechanism 11 during the movement, and the processed foam board is transferred to the workstation handover position.
[0058] In this application, the front sanding device 1 and the support fixture 4 in the reverse sanding process are set to reciprocate, and the support fixture 4 is driven by the linear drive module 12 to move on the corresponding frame 10. Compared with the previous through-type sanding method, the foam board can be sanded smoothly, achieving precise sanding, reducing the surface error value of the foam board, and controlling the surface error value within 10 microns, thus achieving precise sanding and avoiding the defect of "biting at the head and tail".
[0059] It should be noted that the flipping device 2 for flipping the foam board and the sanding mechanism 11 are conventional technologies in the field, and therefore will not be described in detail in this application.
[0060] like Figures 6 to 15 As shown, as a further embodiment, the support fixture 4 in the front sanding device 1 includes a base frame 40, a plurality of spaced support plates 41, a lifting frame 42, and a plurality of spaced rollers 43. The base frame 40 is slidably engaged with the corresponding frame 10. The plurality of spaced support plates 41 are arranged on the base frame 40 along the conveying path of the foam board. The lifting frame 42 is movably mounted on the base frame 40 via guide columns. The plurality of spaced rollers 43 are rotatably mounted on the lifting frame 42 for conveying the foam board on the support fixture 4. The support plates 41 are arranged between adjacent rollers 43. The support fixture 4 is also provided with a clamping support mechanism 5 for clamping the side of the foam board and dynamically supporting the bottom of the foam board to prevent the foam board from deforming during the sanding process, thereby making the front of the foam board flat and sanded.
[0061] like Figures 6 to 11 As shown, the clamping support mechanism 5 includes a clamp 50 and an elastic support unit 500. The clamp 50 includes clamping plates 51 symmetrically arranged on both sides of the support fixture 4 and a drive assembly 52 on the base frame 40 for synchronously driving the two clamping plates 51 to center and clamp the foam board. The elastic support unit 500 is composed of multiple support members 501 independently arranged on the base frame 40. The support member 501 includes a support block 502 for abutting against the bottom of the foam board and a lifting cylinder 503 on the base frame 40. The bottom of the support block 502 is connected to the piston rod of the lifting cylinder 503. The support plate 41 is provided with a clearance hole (not shown in the figure) for the support block 502 to pass through. Each lifting cylinder 503 is adaptively adjusted by a pressure regulating valve to drive the corresponding support block 502 to support the bottom of the foam board, thereby balancing the forces at each support point at the bottom of the foam board. In this embodiment, the foam board is pre-clamped by the clamp 50, and then each support 501 is activated. The lifting cylinder 503 drives the support block 502 to support the foam board. Since the lifting cylinder 503 adaptively adjusts the air pressure through the pressure regulating valve, the supporting force of each support block 502 is the same, thereby preventing the foam board from becoming uneven during sanding due to unbalanced force.
[0062] like Figure 3 As shown, as a further embodiment, the frame 10 of the front sanding device 1 is provided with an adjustment panel 504 for manually adjusting the air pressure of each lifting cylinder 503 to adapt to foam boards of different specifications. Depending on the actual situation, foam boards of different specifications may be produced, and the support force required for foam boards of different specifications is also different. Therefore, this embodiment also provides an adjustment panel 504 to adjust the lifting force of each lifting cylinder 503, so that it can be applied to foam boards of different specifications.
[0063] like Figure 9 , Figure 10 As a further embodiment, a fixed plate 53 is provided on the base frame 40, and the two clamping plates 51 are slidably disposed on the fixed plate 53. The driving assembly 52 includes a clamping cylinder 54 disposed on the fixed plate 53 and racks 55 respectively fixedly connected to the corresponding clamping plates 51, and also includes gears 56 rotatably disposed on the fixed plate 53. The gears 56 respectively mesh with the corresponding racks 55, and the piston rod of the clamping cylinder 54 is connected to one of the clamping plates 51. In this embodiment, by driving the clamping plates 51 through the clamping cylinder 54, and then through the cooperation of the racks 55 and the gears 56, the two clamping plates 51 can be made to run synchronously, thereby realizing the centering and clamping of the foam board, and further making the positioning of the foam board more accurate.
[0064] like Figure 7 , Figure 8As shown, furthermore, at least three clamps 50 are provided, preferably six in this embodiment, correspondingly distributed between adjacent support plates 41. The clamps 50 at the front end and the clamps 50 at the rear end are activated synchronously, and the clamps 50 at the front end and the clamps 50 at the rear end clamp before the clamps 50 in the middle. In this embodiment, by setting multiple clamps 50, when clamping the sanded foam board, the clamps 50 at the front end and the clamps at the rear end are activated first for pre-clamping, so that the foam board is initially centered. Then the clamps 50 in the middle are activated to completely clamp the foam board and achieve precise positioning. In addition, anti-slip textures can be provided on the clamping surface of the clamping plate 51 in the clamps 50 to prevent the foam board from sliding.
[0065] like Figures 12 to 15 As shown, as a further embodiment, the base frame 40 is provided with several lifting plates 13 that slide with it, and a transverse cylinder 14 that drives the lifting plates 13 to move. The lifting plates 13 are formed with a pushing inclined surface, and the lifting frame 42 is provided with a force-bearing block 15 corresponding to the lifting plates 13. The force-bearing block 15 is formed with a force-bearing inclined surface that cooperates with the pushing inclined surface. When the roller 43 is working, the lifting plates 13 are driven by the transverse cylinder 14, and the inclined surface of the lifting plates 13 acts on the force-bearing block 15, which in turn drives the lifting frame to lift. By setting the roller 43, the foamed board flowing in from the previous process can be connected, and the sanded foamed board can be transported to the next process. After the roller 43 transports the foamed board to the position, the lifting frame 42 descends, and the foamed board falls onto the support fixture 4, and then the clamping device 50 is activated.
[0066] Besides using a cylinder to push the inclined plane, the lifting frame 42 can also be moved directly by a cylinder, or by an electric actuator. In this embodiment, the inclined plane pushing method is more stable than the direct cylinder driving method, and the cost is lower than the electric actuator method. The pushing inclined plane and the force-bearing inclined plane are not shown in the figure.
[0067] like Figure 7 As shown, as a further embodiment, the frame 10 is provided with a pair of parallel V-shaped dustproof guide rails 16, and the support fixture 4 slides in cooperation with the V-shaped dustproof guide rails 16. In this embodiment, the support fixture 4 can slide in cooperation with the V-shaped dustproof guide rails 16 via rollers for greater precision. The linear drive module 12 can drive the support fixture 4 to move linearly on the V-shaped dustproof guide rails 16 using a motor belt transmission method.
[0068] like Figure 3As shown, as a further embodiment, the support fixture 4 in the reverse sanding device 3 includes a vacuum adsorption conveyor belt 17 slidably mounted on the corresponding frame 10, and a plurality of guide rollers 18 located on both sides of the front end of the frame 10 of the reverse sanding device 3 for guiding the foam board. Since the surface sanding device has already sanded the front side of the foam board, the support fixture 4 in the reverse sanding device 3 can directly adsorb the front side of the foam board through the vacuum adsorption conveyor belt 17 for positioning. The guide rollers 18 facilitate guiding and positioning the foam board. In addition, transition rotating rollers 19 are provided at both ends of the vacuum adsorption conveyor belt 17 to facilitate the transition of the foam board.
Claims
1. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes, characterized in that... include: Front sanding device (1), used to receive the foam board from the previous process and sand its front side; The flipping device (2), located downstream of the front sanding device (1), is used to receive the foamed board after it has been sanded by the front sanding device (1) and flip it 180°. The reverse sanding device (3) is located downstream of the flipping device (2) and is used to receive the foam board after it has been flipped by the flipping device (2) and to sand its reverse side. The front sanding device (1) and the back sanding device (3) both include: Rack (10); A sanding mechanism (11) is mounted on a frame (10); The support fixture (4) is slidably mounted on the frame (10), and the support fixture (4) can fix the foam board thereon, and the support fixture (4) can move the foam board thereon; The linear drive module (12) is connected to the support fixture (4) and is used to drive the support fixture (4) to carry the foam board and move back and forth along the sanding path on the frame (10), so that the foam board can complete the sanding process through the sanding mechanism (11) during the movement, and hand over the processed foam board to the work station handover position.
2. The reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 1, characterized in that... The support fixture (4) in the front sanding device (1) includes: The base frame (40) is in sliding fit with the corresponding frame (10); Several spaced support plates (41) are arranged on the base frame (40) along the conveying path of the foamed board; The lifting frame (42) is mounted on the base frame (40) in a way that allows it to be raised and lowered via guide columns; Several spaced rollers (43) are rotatably mounted on a lifting frame (42) for conveying foamed boards on a support fixture (4), wherein a support plate (41) is disposed between adjacent rollers (43); The support fixture (4) is also provided with a clamping support mechanism (5) for clamping the side of the foam board and dynamically supporting the bottom of the foam board to prevent the foam board from deforming during the sanding process, thereby making the front of the foam board flat and sanded.
3. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 2, characterized in that... The clamping support mechanism (5) includes: The clamp (50) includes clamping plates (51) symmetrically arranged on both sides of the support fixture (4) and a drive assembly (52) arranged on the base frame (40) for synchronously driving the two clamping plates (51) to center and clamp the foam board. The elastic support unit (500) consists of multiple support members (501) independently set on the corresponding base frame (40). The support member (501) includes a support block (502) for abutting against the bottom of the foam board and a lifting cylinder (503) set on the base frame (40). The bottom of the support block (502) is connected to the piston rod of the lifting cylinder (503). The support plate (41) is provided with a clearance hole for the support block (502) to pass through. Each lifting cylinder (503) is adaptively adjusted by a pressure regulating valve to drive the corresponding support block (502) to support the bottom of the foam board, thereby balancing the forces at each support point at the bottom of the foam board.
4. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 3, characterized in that... The frame (10) of the front sanding device (1) is provided with an adjustment panel (504) for manually adjusting the air pressure of each lifting cylinder (503) to adapt to different specifications of foamed boards.
5. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 3, characterized in that... A fixed plate (53) is provided on the base frame (40), and the two clamping plates (51) are slidably disposed on the fixed plate (53). The drive assembly (52) includes a clamping cylinder (54) disposed on the fixed plate (53) and a rack (55) fixedly connected to the corresponding clamping plate (51) respectively. It also includes a gear (56) rotatably disposed on the fixed plate (53). The gear (56) meshes with the corresponding rack (55) respectively. The piston rod of the clamping cylinder (54) is connected to one of the clamping plates (51).
6. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 3, characterized in that... The clamps (50) are provided in at least three, and the clamps (50) at the front end and the clamps (50) at the rear end are started synchronously, and the clamps (50) at the front end and the clamps (50) at the rear end clamp earlier than the clamps (50) in the middle.
7. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 2, characterized in that... The base frame (40) is provided with a plurality of lifting plates (13) that slide with it, and a transverse cylinder (14) that drives the lifting plates (13) to move. The lifting plates (13) are formed with a pushing inclined surface. The lifting frame (42) is provided with a force block (15) corresponding to the lifting plates (13). The force block (15) is formed with a force inclined surface that cooperates with the pushing inclined surface.
8. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 1, characterized in that... The frame (10) is provided with a pair of parallel V-shaped dustproof guide rails (16), and the support fixture (4) is slidably engaged with the V-shaped dustproof guide rails (16).
9. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 1, characterized in that... The support fixture (4) in the reverse sanding device (3) includes a vacuum adsorption conveyor belt (17) that is slidably mounted on the corresponding frame (10), and also includes several guide rollers (18) located on both sides of the front end of the frame (10) of the reverse sanding device (3) for guiding the foam board.
10. A reciprocating fully automatic sanding production line for foamed panels used in LNG ship insulation boxes according to claim 7, characterized in that... Transition rollers (19) are provided at both ends of the vacuum adsorption conveyor belt (17).